阅读说明：本技术 搅拌机 (Mixer ) 是由 李杰柱 于 2019-09-11 设计创作，主要内容包括：根据本发明的搅拌机包括：搅拌机主体,所述搅拌机主体包括外筒、粉碎刀片以及刀片驱动部,所述刀片驱动部用于使所述粉碎刀片旋转；内筒单元,所述内筒单元包括内筒和内筒驱动部,所述内筒设置在所述外筒内,所述粉碎刀片位于所述内筒的内部,所述内筒驱动部用于使所述内筒旋转；以及控制器,所述控制器与所述刀片驱动部和内筒驱动部电连接,以用于控制所述刀片驱动部和内筒驱动部,其中,所述内筒的内部侧面形成有突出部,以阻碍由粉碎刀片粉碎且旋转流动的搅拌对象物体,所述控制器将所述内筒驱动部控制为,对所述搅拌对象物体进行搅拌,同时,在使所述内筒在沿与所述粉碎刀片的旋转方向相反的方向转动、然后停止的重复运行模式,或者在反转、然后改变速度的运行模式,以在所述内筒内破坏搅拌对象物体的平衡状态。(The mixer according to the invention comprises: a mixer main body including an outer cylinder, a crushing blade, and a blade driving part for rotating the crushing blade; the inner cylinder unit comprises an inner cylinder and an inner cylinder driving part, the inner cylinder is arranged in the outer cylinder, the crushing blade is positioned in the inner cylinder, and the inner cylinder driving part is used for enabling the inner cylinder to rotate; and a controller electrically connected to the blade driving part and the inner cylinder driving part to control the blade driving part and the inner cylinder driving part, wherein a protrusion is formed on an inner side surface of the inner cylinder to block an object to be stirred which is crushed by the crushing blade and flows rotationally, and the controller controls the inner cylinder driving part to stir the object to be stirred while rotating the inner cylinder in a direction opposite to a rotation direction of the crushing blade and then stopping the inner cylinder, or to reverse the inner cylinder and then change a speed of the inner cylinder to break a balanced state of the object to be stirred in the inner cylinder.)

1. A blender, comprising:

a mixer main body including an outer cylinder, a crushing blade, and a blade driving part for rotating the crushing blade;

the inner cylinder unit comprises an inner cylinder and an inner cylinder driving part, the inner cylinder is arranged in the outer cylinder, the crushing blade is positioned in the inner cylinder, and the inner cylinder driving part is used for enabling the inner cylinder to rotate; and

a controller electrically connected with the blade driving part and the inner cylinder driving part for controlling the blade driving part and the inner cylinder driving part,

wherein a protrusion is formed on an inner side surface of the inner cylinder to block the object to be stirred, which is pulverized by the pulverizing blade and flows rotationally,

the controller controls the inner cylinder driving part to stir the object to be stirred and to break an equilibrium state of the object to be stirred in the inner cylinder in a repetitive mode in which the inner cylinder is rotated in a direction opposite to a rotation direction of the crushing blade and then stopped or in a mode in which the inner cylinder is reversed and then the speed is changed.

2. A mixer according to claim 1,

the controller controls the inner cylinder driving part and the blade driving part to rotate the crushing blade after rotating the inner cylinder.

3. A mixer according to claim 1,

the controller controls the blade driving part to stop the crushing blade at least once during the rotation of the inner cylinder and the crushing blade.

4. A mixer according to claim 1,

the protrusion has a spiral projected line shape for guiding the object to be stirred to flow spirally downward so as to rotate the object to be stirred in a direction opposite to a rotation direction of the crushing blade and flow downward when the crushing blade and the inner cylinder rotate in directions opposite to each other.

5. A mixer according to claim 4,

a guide portion is formed below the protrusion portion located laterally to the crushing blade to prevent the object to be stirred from being caught between the crushing blade and the protrusion portion, wherein the guide portion slides toward a center side of the rotary drum to guide the object to be stirred.

6. A mixer according to claim 5,

the guide portion is formed between a bottom surface of the protrusion and an inner bottom surface of the rotary cylinder and has a sliding surface,

the sliding surface extends from an inner side surface of the rotary cylinder toward an inner side of the rotary cylinder, and is inclined toward a rotation direction of the crushing blade when the crushing blade rotates in an opposite direction to the rotary cylinder.

7. A mixer according to claim 6,

when the crushing blade and the rotary drum rotate in opposite directions to each other, an edge of the sliding surface on a side close to a center of the rotary drum is bent toward a rotation direction of the crushing blade.

8. A mixer according to claim 6,

the protrusion extends from an inner side surface of the rotary cylinder toward a center side of the rotary cylinder, and is inclined toward a rotation direction of the rotary cylinder when the crushing blade and the rotary cylinder are rotated in opposite directions to each other.

9. A mixer according to claim 1,

the blade driving part and the inner cylinder driving part are both arranged at the lower side of the inner cylinder, or

The blade driving part is arranged at the lower side of the inner cylinder, and the inner cylinder driving part is arranged at the upper side of the inner cylinder.

10. A mixer according to claim 1,

a plurality of drain holes are formed at a side portion of the inner cylinder to dehydrate the object to be stirred while rotating.

11. A mixer according to claim 10,

a discharge pipe is formed at the bottom of the outer cylinder to discharge the liquid dehydrated from the object to be stirred to the outside.

12. A mixer according to claim 1,

the mixer still include:

and a vacuum unit provided in the mixer main body and configured to be capable of forming a vacuum inside the inner cylinder.

13. A mixer according to claim 12,

the vacuum unit includes:

a suction tube in communication with the inner barrel; and

a vacuum drive in communication with the suction tube.

14. A mixer according to claim 1,

the blade rotating shaft of the blade driving part is configured to rotate around a shaft in a central hole formed in the inner cylinder rotating shaft of the inner cylinder driving part, so that the blade rotating shaft and the inner cylinder rotating shaft rotate around the shaft independently from each other.

Technical Field

The present invention relates to a blender (MIXER) capable of pulverizing objects to be blended, including fruits, vegetables, and the like.

Background

In general, a mixer is an electric device including a container (cup) for placing a mixing target object and a main body in which a motor is accommodated.

Wherein the container is made of hard heat-resistant glass, synthetic resin or stainless steel, and the stainless steel crushing blade is fitted with the driving part and mounted at the lower part in the container.

In addition, when the motor housed in the main body rotates at a high speed, the blender is widely used for cutting and crushing objects to be blended, including fruits, vegetables, and the like, and for juicing the objects to be blended at home.

However, the above-mentioned blender has a limitation in that the milling blade is rotated in one direction or rotated in one direction for a predetermined time period in both directions, and thus the object to be blended is radially pushed by the centrifugal force, thereby remarkably reducing the milling and juicing effects.

Further, even if the object to be stirred is crushed, in order to extract juice and eat it, a separate juice extractor is required to extract juice, and thus it is inconvenient to use.

Disclosure of Invention

Technical subject

The invention aims to provide a stirring machine capable of improving the crushing performance of a stirring object.

Technical scheme

To achieve the above object, a mixer according to the present invention comprises: a mixer main body including an outer cylinder, a crushing blade, and a blade driving part for rotating the crushing blade; the inner cylinder unit comprises an inner cylinder and an inner cylinder driving part, the inner cylinder is arranged in the outer cylinder, the crushing blade is positioned in the inner cylinder, and the inner cylinder driving part is used for enabling the inner cylinder to rotate; and a controller electrically connected to the blade driving part and the inner cylinder driving part to control the blade driving part and the inner cylinder driving part, wherein a protrusion is formed on an inner side surface of the inner cylinder to block an object to be stirred which is crushed by the crushing blade and flows rotationally, and the controller controls the inner cylinder driving part to stir the object to be stirred while rotating the inner cylinder in a direction opposite to a rotation direction of the crushing blade and then stopping the rotation, or to reverse the rotation and then change the rotation speed, so as to break a balanced state of the object to be stirred in the inner cylinder.

Effects of the invention

The stirring machine according to the present invention controls the inner cylinder driving part by the controller so that the irregular flow of the object to be stirred is generated by changing the rotation direction of the inner cylinder, or by repeatedly performing a mode of rotating and then stopping the inner cylinder in the direction opposite to the rotation direction of the crushing blade, or by repeatedly performing stirring of the object to be stirred while reversing and then changing the rotation speed, so that the object to be stirred is not accumulated as if it were a wall on the inner side surface of the inner cylinder but is returned to the crushing blade rotating at the center portion of the inner cylinder again, thereby producing an effect of remarkably improving the crushing performance.

Namely, the mixer according to the present invention has the following advantages: by configuring such that an irregular flow of the object to be stirred can be generated, the object to be stirred can be pushed down as if it were a wall-like object to be stirred held on the inner side surface of the inner cylinder, and finally the pulverization performance of the object to be stirred can be improved.

Further, the mixer according to the invention has the following advantages: the inner side surface of the inner cylinder is provided with a spiral protruded line-shaped protruding part for guiding the object to be stirred to spirally flow downwards, so that the object to be stirred rotates in the direction opposite to the rotating direction of the crushing blade and flows downwards, and the object to be stirred, which is radially pushed by centrifugal force and flows upwards, can flow to the crushing blade positioned at the lower side in the inner cylinder, thereby further improving the crushing effect of the stirrer.

In addition, according to the stirring machine of the present invention, since the guide portion for guiding the object to be stirred to slide toward the center of the inner cylinder (rotary cylinder) is formed below the protrusion located in the lateral direction of the crushing blade, the object to be stirred can be prevented from being caught between the crushing blade and the protrusion, and the rotation of the crushing blade can be prevented from being stopped at the initial stage of operation.

Further, the stirring machine according to the present invention may be configured such that the protrusion protrudes from the inner side surface of the inner cylinder (rotating cylinder) toward the center side of the inner cylinder and is inclined in the rotating direction of the inner cylinder, and thus when the inner cylinder rotates in the direction opposite to the crushing blade, the supporting force of the protrusion for supporting the object to be stirred is further increased, and the action of reversing the object to be stirred is further increased.

On the other hand, the agitator according to another embodiment of the present invention may be configured such that the gear engagement structure of the inner cylinder driving connection part is variable so that the rotation speeds may be different between when the agitation target object is crushed and when the agitation target object is dehydrated, or may be configured to have a plurality of inner cylinder driving motors so that the torque may be increased while the reverse rotation speed of the inner cylinder is reduced when the agitation target object is crushed, so that the agitation target object near the inner side of the inner cylinder is smoothly reversed among the agitation target objects which are rotated forward by the normal rotation of the crushing blade, and the rotation speed of the inner cylinder may be increased as much as possible when the agitation target object is dehydrated as compared to when the agitation target object is crushed, to maximize the dehydration effect.

In addition, the mixer according to still another embodiment of the present invention is provided with a pressing member in the inner cylinder driving part, the pressing member pressing the inner cylinder driving shaft to complete the change of the gear engagement structure of the inner cylinder driving connecting part, so that the pressing to complete the change of the gear engagement structure is continuously performed in the axial direction of the inner cylinder driving shaft in a case where the inner cylinder driving shaft is moved in the axial direction and the engagement of the gear teeth of the gear is not completed yet, whereby the gear is rotated and finally engaged, so that the change of the gear engagement structure of the inner cylinder driving connecting part can be completely realized.

Drawings

FIG. 1 is a diagram illustrating the interior of a blender according to one embodiment of the present invention.

Fig. 2 is an enlarged view of a portion a in fig. 1.

FIG. 3 is a perspective view showing the inner barrel of the blender of FIG. 1.

Fig. 4 is a view showing normal rotation and reverse rotation of the inner cylinder of fig. 3.

Fig. 5 is a view showing the rotation direction of the inner cylinder and the crushing blade and the flow direction of the object to be stirred in the stirring machine of fig. 1.

Fig. 6 to 8 are diagrams showing the results of respective time periods in which the object to be kneaded is pulverized by the kneading machine of the present invention and the kneading machines of the conventional inventions 1 and 2.

Fig. 9 is a view showing an operation mode of the inner cylinder and the pulverizing blade at each time period according to the present invention.

Fig. 10 is a view showing that the object to be stirred is caught between the crushing blade and the protruding portion, and the crushing blade is stopped.

Fig. 11 and 12 are views showing an inner cylinder according to another embodiment.

FIG. 13 is a diagram illustrating an upper surface of an inner barrel according to yet another embodiment.

FIG. 14 is a view showing the upper part of the mixer of FIG. 1.

FIG. 15 is a diagram showing an inner barrel according to yet another embodiment.

Fig. 16 is a view showing a blender according to still another embodiment of the present invention.

FIG. 17 is a view showing the inside of the mixer of FIG. 5.

Fig. 18 and 19 are views showing an operation state of an inner cylinder driving part of the mixer of fig. 17.

Fig. 20 and 21 are diagrams illustrating an operation state of an inner cylinder driving part according to another embodiment.

FIG. 22 is a diagram showing another interior of yet another embodiment of a blender according to FIG. 16.

FIGS. 23 and 24 are views showing the operation state of the inner cylinder driving part of the mixer shown in FIG. 22.

FIG. 25 is a longitudinal sectional view showing a blender according to still another embodiment of the present invention.

FIG. 26 is a view showing the inner cylinder, the inner cylinder cover, and the inner cylinder rotation shaft of the mixer of FIG. 25.

FIG. 27 is a longitudinal sectional view showing a blender according to still another embodiment of the present invention.

Detailed Description

Fig. 1 is a view showing the inside of a blender according to an embodiment of the present invention, and fig. 2 is an enlarged view showing a portion a in fig. 1.

Fig. 3 is a perspective view showing an inner cylinder of the mixer of fig. 1, and fig. 4 is a view showing normal rotation and reverse rotation of the inner cylinder of fig. 3.

Referring to the drawings, a blender according to the present invention includes a blender body 100, an inner barrel unit 200, and a controller (not shown).

The mixer body 100 may include an outer tub 110, a crushing blade 120, and a blade driving part 130.

Specifically, the inner cylinder 210 of the inner cylinder unit 200 is provided inside the outer cylinder 110, and the outer cylinder 3110 has an upper opening structure with an open upper portion and is configured to be opened and closed by the outer cylinder cover 140.

Further, the crushing blade 120 is provided in the inner cylinder 210, and performs a function of crushing the agitation target object in the inner cylinder 210 while rotating. In this case, the object to be kneaded is food that can be pulverized by the operation of the mixer.

Meanwhile, the blade driving part 130 may include a blade rotating shaft 131 and a blade driving motor M1 as a structure for providing a driving force for rotating the pulverizing blade 120. At this time, the blade rotating shaft 131 is vertically connected to the crushing blade 120, and the blade driving motor M1 is connected to the blade rotating shaft 131. That is, the blade rotating shaft 131 is connected to the central portion of the pulverizing blade 120 arranged in the transverse direction and is provided to extend in the longitudinal direction. In addition, the blade rotating shaft 131 may connect the pulverizing blade 120 and the blade driving motor M1 to each other, and transmit the rotational driving force of the blade driving motor M1 to the pulverizing blade 120, so that the pulverizing blade 120 can be driven to rotate when the blade driving motor M1 is operated.

In addition, the inner cylinder unit 200 may include an inner cylinder 210 and an inner cylinder driving part 220.

The inner cylinder 210 is disposed in the outer cylinder 110, and a protrusion 211 is formed on an inner side surface of the inner cylinder 3210 to block the object to be stirred, which is pulverized and rotationally flows by the pulverizing blade 120.

For reference, the inner cylinder in this specification means a rotary cylinder, and a structure including such an inner cylinder, a protrusion to be described later, and a guide means a cylinder structure for a blender.

Meanwhile, the inner cylinder driving part 220 is connected to the inner cylinder 210 to perform a function of rotating the inner cylinder 210, and is provided independently of the blade driving part 130 for driving the pulverizing blade 120 to rotate.

Further, although not shown in the drawings, the inner cylinder driving part and the blade driving part may be implemented by one driving part, in which case such a driving part may perform a function as an inner cylinder driving part for driving the inner cylinder or a blade driving part for driving the crushing blade by using a driving force transmission medium such as a clutch.

In addition, the controller (not shown) is electrically connected to the blade driving part 130 and the inner cylinder driving part 220 to perform a function of controlling the blade driving part 130 and the inner cylinder driving part 220.

On the other hand, in the conventional agitator, since the crushing blade rotates only in one direction, the object to be stirred continuously rotates only in one direction in the agitator, and the object to be stirred is kept as if it were a wall shape while being pushed in the direction toward the inner side surface of the agitator casing, and cannot be returned to the crushing blade, thereby remarkably reducing the crushing performance.

Of course, the inner wall of the mixing drum of the conventional mixer is also provided with a protrusion, so that the object to be mixed generates a certain degree of eddy, but the object to be mixed is realized to have regular flow, so that the limitation that the object to be mixed cannot be sufficiently crushed is still provided.

Thus, in the mixer according to the present invention, in order to irregularly flow the object to be mixed, as shown in fig. 4, the inner cylinder driving part 220 may be controlled by the controller so as to mix the object to be mixed while changing the rotation direction of the inner cylinder 210.

As a specific example, the controller controls the blade driving part (130 of fig. 2) and the inner cylinder driving part (220 of fig. 2) such that the pulverizing blade 120 and the inner cylinder 210 rotate in opposite directions to each other.

At this time, the controller repeatedly turns on/off the power of the inner cylinder driving part 220, so that the inner cylinder 210 performs the unpowered inertial forward rotation and then the reverse rotation in conjunction with the rotational force by which the agitating object is driven by the crushing blade 120 when the power is off.

That is, the controller controls the blade driving part 130 and the inner cylinder driving part 220 to repeatedly perform an operation of turning on and off the power of the inner cylinder driving part 220 in a state of rotating the pulverizing blade 120 and the inner cylinder 210 in opposite directions to each other. Accordingly, the inner cylinder 210 rotates in the reverse direction (in the opposite direction to the crushing blade 120) while the power of the inner cylinder driving unit 220 is turned on, and the rotational speed of the inner cylinder 210 gradually decreases while the inner cylinder 210 is rotated by the unpowered inertia while the power of the inner cylinder driving unit 220 is turned off, and then rotates in the forward direction (in the same direction as the crushing blade 120) by the rotational force of the object to be stirred driven by the crushing blade 120.

In other words, the inner cylinder 210 rotates in reverse upon receiving the driving force from the inner cylinder driving unit 220 only when the controller turns on the power supply to the inner cylinder driving unit 220, and rotates in forward direction in conjunction with the rotational force of the object to be stirred after inertial rotation is performed due to the absence of the driving force from the inner cylinder driving unit 220 when the controller turns off the power supply to the inner cylinder driving unit 220.

In particular, in order to break the equilibrium state of the object to be stirred, the controller may control the inner cylinder driving part 220 to stir the object to be stirred while repeating a mode in which the inner cylinder 210 is rotated in a direction opposite to the rotation direction of the crushing blade 120 and then stopped or a mode in which the speed is changed after the reverse rotation.

As another embodiment, although not shown in the drawings, the inner tube driving part 220 may have a direct current motor and a switching circuit, or an alternating current motor and an inverter, so that the inner tube 210 can be rotated in the forward or reverse direction by the driving force of the inner tube driving part 220 under the control of the controller.

That is, the switching circuit or the inverter of the inner cylinder driving unit 220 can obtain a driving force from the inner cylinder driving unit 220 to rotate the inner cylinder 210 not only when the inner cylinder 210 rotates in the reverse direction but also when the inner cylinder rotates in the forward direction under the control of the controller.

As described above, in the agitator according to the present invention, the inner cylinder driving part 220 is controlled by the controller such that the object to be agitated is agitated by changing the rotation direction of the inner cylinder 210, and particularly, the rotation change of the inner cylinder 210, which stops the inner cylinder 210 after the inner cylinder 210 is reversed for a predetermined time and is reversed again for a predetermined time, is realized by repeatedly turning on/off the power of the inner cylinder driving part 220 by the controller, so that the equilibrium state of the object to be agitated can be broken, the object to be agitated is not accumulated as if it were a wall shape on the inner side surface of the inner cylinder 210, but can be returned to the crushing blade 120 rotating at the central portion of the inner cylinder 210 again, and thus the crushing performance can be remarkably improved.

That is, the mixer according to the present invention is configured to break the balance of the object to be mixed, and break the object to be mixed, which is maintained in a wall-like shape on the inner side surface of the inner cylinder 210, thereby improving the pulverizing performance of the object to be mixed.

Specifically, the object to be stirred moves toward the inner side surface of the inner cylinder 210 by the centrifugal force caused by the rotation of the crushing blade while being stirred, and at this time, if the particles of the object to be stirred are balanced (balanced) in force, the object to be stirred stops without moving again, and accordingly, the object cannot flow toward the crushing blade 120 and cannot be further crushed.

However, as for the balance of the force among the particles of the object to be stirred as described above, the force may be changed to an unbalanced force by changing the rotation direction of the inner cylinder 210 in the stirrer according to the present invention, or the force may be changed to an unbalanced force by repeating a mode in which the inner cylinder 210 is stopped after being reversed or a mode in which the rotation speed is changed after being reversed, so that the particles are caused to flow again, and the object to be stirred may flow toward the pulverizing blade 120 during the flow to continue pulverizing the same.

Further, in the mixer according to the present invention, under the condition that the milling blade 120 is positioned inside the inner cylinder 210, as shown in fig. 5, in the case where the blade driving part 130 and the inner cylinder driving part 220 rotate the milling blade 120 and the inner cylinder 210 in the mutually opposite directions, respectively, and particularly, in the case where the mode in which the inner cylinder 210 is stopped after being reversed or the mode in which the rotation speed is changed after being reversed is repeated, the milling effect of the object to be mixed can be further improved according to the shape structure of the protruding part 211.

Specifically, the protrusion 211 may take a spiral projected line shape capable of guiding the stirring target object to spirally flow downward so that the stirring target object is rotated in a direction opposite to the rotating direction of the crushing blade 120 and flows downward.

Hereinafter, the rotational flow of the stirring target object in one direction due to the crushing blade 120 will be described. Since the pulverizing blade 120 is disposed at the inner lower side of the inner cylinder 210, the object to be stirred is pushed to the inner side of the inner cylinder 210 when the pulverizing blade 120 rotates, and then will flow upward along the inner side of the inner cylinder 210. Accordingly, the objects to be stirred, which flow upward by obtaining the centrifugal force as described above, do not substantially flow toward the pulverizing blades 120 disposed at the inner lower side of the inner cylinder 210.

Therefore, in order to flow the objects to be stirred, which flow as described above, toward the crushing blade 120 disposed at the inner lower side of the inner cylinder 210, when the crushing blade 120 and the inner cylinder 210 rotate in opposite directions, the protrusion 211 may be formed in a spiral-protruded strip shape such that the objects to be stirred rotate in a direction opposite to the rotation direction of the crushing blade 120 and flow downward, thereby guiding the objects to be stirred to flow spirally downward as shown in fig. 5.

That is, the objects to be stirred, which flow to the inner side of the inner cylinder in one direction of rotation, collide with the spiral protrusion line rotating in the opposite direction and flow downward along the spiral structure of the spiral protrusion line, thereby flowing to the crushing blade 120 disposed at the inner lower side of the inner cylinder 210, whereby the crushing effect of the blender can be further improved.

Then, the mixer of the present invention constructed as described above will be compared with the prior inventions 1 and 2. Referring to fig. 6 to 8, the pulverization effect of the object to be stirred will be described based on the pulverization state for a preset time.

Fig. 6 is a graph showing the pulverization results for each time period after garlic as an object to be pulverized is pulverized by the pulverizer of the present invention and the pulverizers of conventional inventions 1 and 2.

The blender of the present invention crushes about 50% of the total amount of garlic after 3 seconds, crushes about 80% after 15 seconds, and finally crushes about 100% after 1 minute after the garlic is put in and starts to be crushed.

In contrast, the blender of the prior art 1 pulverized about 20% of the total amount of garlic after 3 seconds, about 30% after 15 seconds and about 40% after 1 minute after the garlic was put in and the pulverization was started.

In addition, the blender of the conventional invention 2 is designed to pulverize about 10% of the total amount of garlic after 3 seconds, about 30% after 15 seconds, and about 40% after 1 minute after the garlic is put in and starts to be pulverized.

Fig. 7 is a graph showing the grinding results in each time zone after grinding apples, which are objects to be ground, by the mixer of the present invention and the mixers of the conventional inventions 1 and 2.

The blender according to the present invention pulverized about 50% of the total amount of apples after 3 seconds, about 70% after 15 seconds, and about 80% after 1 minute after the apples were put in and the pulverization was started.

In contrast, the blender of the prior art 1 pulverizes about 20% of the total amount of apples after 3 seconds, about 30% after 15 seconds, and about 40% after 1 minute after the apples are put in and begin to be pulverized.

In the blender according to the conventional invention 2, after the apples are put and the pulverization is started, about 10% of the total amount of the apples is pulverized after 3 seconds, about 10% is pulverized after 15 seconds, and about 10% is pulverized after 1 minute.

Finally, fig. 8 is a diagram showing the pulverization results in each time zone after pulverizing celery as an object to be kneaded by the kneading machine of the present invention and the kneading machines of the conventional inventions 1 and 2.

The blender according to the present invention crushes about 60% of the total amount of celery after 3 seconds, crushes about 80% after 15 seconds, and finally crushes about 90% after 1 minute after celery is put in and starts to be crushed.

In contrast, the blender of the prior art invention 1 pulverizes about 5% of the total amount of celery after 3 seconds, about 10% after 15 seconds, and about 10% after 1 minute after the celery is put in and the pulverization is started.

In addition, the blender of the conventional invention 2 is designed to pulverize about 5% of the total amount of celery after 3 seconds, about 10% after 15 seconds, and about 10% after 1 minute after the celery is put in and the pulverization is started.

As is clear from the results, the mixers of the conventional inventions 1 and 2 can crush a small amount of objects to be stirred when 3 seconds have elapsed after the objects to be stirred are placed and start crushing, and the crushing amount of the objects to be stirred slightly increases after 15 seconds have elapsed, but the crushing amount of the objects to be stirred hardly changes from 15 seconds to 1 minute.

This shows a state in which the blenders of the prior inventions 1 and 2 are in equilibrium from 15 seconds up to 1 minute, resulting in that the pulverization of the object to be blended is not performed any more.

That is, in the stirring machines of the prior inventions 1 and 2, the object to be stirred moves to the inner side surface of the inner cylinder by the centrifugal force caused by the rotation of the crushing blade while being stirred, and at this time, if the force balance (balance) is formed between the particles of the object to be stirred, the object to be stirred stops without moving any more, and further crushing cannot be performed because the object to be stirred cannot move to the crushing blade.

On the contrary, the mixer of the present invention crushes more than half of the objects to be mixed after 3 seconds have elapsed since the objects to be mixed were put in and started to be crushed, continuously increases the crushing amount of the objects to be mixed after 15 seconds have elapsed, and continuously increases the crushing amount of the objects to be mixed until 1 minute has elapsed, thereby basically crushing most of the objects to be mixed and having a high crushing effect.

As can be seen from the above-described structure, the mixer of the present invention is configured such that the controller controls the inner cylinder driving unit 220 to change the rotational direction of the inner cylinder 210 and mix the object to be mixed, thereby breaking the balance of the object to be mixed, so that the object to be mixed is not accumulated as a wall on the inner side surface of the inner cylinder 210, but returns to the crushing blade 120 rotating at the center portion of the inner cylinder 210, thereby remarkably improving the crushing performance.

That is, the balance of the forces among the particles of the object to be stirred is broken by changing the rotation direction of the inner cylinder 210 in the mixer of the present invention, so that the uneven forces are generated among the particles, the particles are caused to flow again, and the particles move to the crushing blade 120 during the flow, and the crushing is continued.

On the other hand, the controller may control the inner cylinder driving part 220 and the blade driving part 130 to rotate the pulverizing blade 120 after rotating the inner cylinder 210.

Substantially, the crushing blade 120 provides a rotational driving force larger than that of the inner cylinder 210 to the object to be stirred rotated by the rotation of the crushing blade 120 and the inner cylinder 210.

Therefore, if the crushing blade 120 rotates earlier than the inner cylinder 210, the object to be stirred is rotated considerably quickly by the crushing blade 120, and even if the inner cylinder 210 is rotated reversely thereafter, the object to be stirred cannot be reversed along with the inner cylinder 210 in a short time, so that the equilibrium state of the object to be stirred cannot be quickly broken.

In order to overcome the above limitation, the inner cylinder 210 of the present invention is reversed earlier than the crushing blade 120, and accordingly, in a state where the object to be stirred is rapidly reversed by the rotational force of the inner cylinder 210 to a predetermined degree, when the subsequent crushing blade 120 is rapidly rotated, the object to be stirred is hardly in a balanced state, and thus the object to be stirred can be crushed in a shorter time.

In addition, the controller may control the inner cylinder driving part 220 and the blade driving part 130 to simultaneously stop the inner cylinder 210 and the pulverizing blade 120 at least once or to stop only the pulverizing blade 120 at least once while the inner cylinder 210 and the pulverizing blade 120 are rotating.

Accordingly, the object to be stirred, which is rotated by the crushing blade 120 or inverted by the inner cylinder 210, instantaneously loses the rotational force at the same time, and the object to be stirred is instantaneously decelerated to increase irregular flow of the object to be stirred, thereby further increasing the effect of breaking the equilibrium state of the object to be stirred.

When the x-axis represents time, the inner barrel 210 and the crushing blades operating in the above manner can be illustrated as shown in fig. 9.

Specifically, when the blender of the present invention is operated, the inner cylinder driving part 220 may be controlled such that the inner cylinder 210 repeats the operation and stop of the inner cylinder 210 according to the a1 stage to An stage of the inner cylinder 210.

Further, as shown in the above-mentioned stage a1 of the inner cylinder 210 and stage B1 of the milling cutter 120, when the blender of the present invention is started, the milling cutter 120 may be operated after the inner cylinder 210 is operated first.

Further, the inner cylinder driving unit 220 and the blade driving unit 130 may be controlled to stop the pulverizing blade 120 while the inner cylinder 210 rotates, as shown in the a3 stage and the B3 stage of the inner cylinder 210; and a mode in which the crushing blades 120 are rotated while the inner cylinder 210 is stopped, as shown in the B4 stage of the crushing blades and the a4 stage of the inner cylinder 210.

Further, the operation time of each of the a1 to AN a stages of the inner barrel 210 may be controlled to be different in whole or in part, and accordingly, the operation time of each of the B1 to BN stages of the crushing blades 120 may be controlled to be different in whole or in part.

On the other hand, as shown in fig. 11 and 12, the mixer according to the present invention may have a guide 212 formed inside the inner cylinder 210.

In the operation of the blender of the present invention, the inner cylinder 210 is rotated first (clockwise in the drawing), and then the crushing blade (120 in fig. 10) is rotated in the direction opposite to the direction of the inner cylinder 210 (counterclockwise in the drawing), and at this time, the rotational force of the crushing blade 120 before the rapid rotation (initial operation) is considerably small, and therefore the object to be blended may be caught between the crushing blade 120 and the protrusion (211 in fig. 10), and in this case, the rotation is not stopped due to the re-rotation.

That is, when the crushing blade 120 is caught by the object to be stirred supported by the protrusion 211 at the initial stage of operation, the object to be stirred cannot be crushed and rotation is stopped due to a small rotational force at the initial stage of operation, and finally, there is a problem that the object to be stirred cannot be crushed basically.

As an example, as shown in the 10-point direction of fig. 10, when a carrot C as an object to be mixed is caught between the grinding blade 120 and the protrusion 211, the grinding blade 120 cannot be rotated any further and is stopped even if the blade driving unit (130 of fig. 2) continues to obtain a driving force.

To solve the above problems at the initial stage of the starting of the blender, the blender of the present invention may have an inner barrel 210 according to another embodiment as shown in fig. 11 and 12.

Such an inner cylinder 210 may have a guide portion 212 to be able to prevent the object to be stirred from being caught between the crushing blade (120 of fig. 9) and the protrusion 211.

Such a guide portion 212 is formed at a lower portion of the protrusion 211 located at a lateral position of the crushing blade 120, and the guide portion 212 is configured to guide the object to be stirred to slide toward the center of the inner cylinder 210.

That is, the guide 212 may be formed at a lateral position of the crushing blade 120 at the bottom of the inner cylinder 210, not at the upper portion, for guiding the movement of the object to be stirred between the crushing blade 120 and the protrusion 211.

Therefore, when the object to be stirred is pushed by the crushing blade 120 and moves toward the protruding portion 211, the object can be moved to the center side of the inner cylinder 210 by being guided by the guide portion 212 without being caught by the protruding portion 211 and coming into contact with the guide portion 212.

Specifically, the guide portion 212 is formed between the bottom surface of the protrusion 211 and the inner bottom surface of the inner cylinder 210, and has a sliding surface 212a extending from the inner side surface of the inner cylinder 210 toward the center side of the inner cylinder 210 and inclined toward the rotation direction of the pulverizing blade 120.

If the sliding surface 212a is inclined in the reverse direction of the crushing blade 120 or the reverse direction of the inner cylinder 210, rather than in the rotation direction of the crushing blade 120, even if the crushing blade 120 pushes the object to be stirred during rotation, the object to be stirred does not slide from the sliding surface 212a to the center side of the inner cylinder 210, but is kept in a state of being caught between the crushing blade 120 and the protruding portion 211.

In view of this, by configuring the sliding surface 212a to extend from the inner side surface of the inner cylinder 210 toward the center side of the inner cylinder 210 and to be inclined toward the rotation direction of the crushing blade 120, the object to be stirred slides from the sliding surface 212a side and moves to the center side of the inner cylinder 210 when being pushed by the crushing blade 120 and comes into contact with the sliding surface 212 a.

As described above, the object to be mixed slides on the sliding surface 212a and is separated from the position between the crushing blade 120 and the protruding portion 211, so that the crushing blade 120 continues to rotate without being blocked by the object to be mixed, and thus the crushing action of the crushing blade 120 on the object to be mixed can be achieved.

At this time, although the edge of the sliding surface 212a closer to the center of the inner cylinder 210 is not curved in the drawing, as another preferred embodiment, the crushing blade 120 and the inner cylinder 210 rotate in opposite directions, and the edge of the sliding surface 212a closer to the center of the inner cylinder 210 may be curved in the rotation direction of the crushing blade 120.

Therefore, the object to be stirred, which slides along the sliding surface 212a, can slide more smoothly toward the center of the inner tube 210 without being caught by the edge of the sliding surface 212a on the center side of the inner tube 210.

Meanwhile, the sliding surface 212a of the guide portion 212 is preferably inclined by 20 degrees to 40 degrees in the rotation direction of the crushing blade 120 with reference to the reverse radial direction of the inner cylinder 210.

If the inclination angle of the sliding surface 212a is smaller than 20 degrees, the sliding surface 212a approaches an imaginary line in the reverse radial direction of the inner tube 210, and becomes nearly perpendicular to the sliding surface 212a along the pressing direction of the milling blade 120 to the object to be blended, and thus is less likely to slide toward the center side of the inner tube 210 along the sliding surface 212 a.

If the inclination angle of the sliding surface 212a is greater than 40 degrees, the guide portion 212 occupies a large amount of the internal space of the inner cylinder 210, which reduces the volume of the object to be stirred, and eventually reduces the stirring amount.

On the other hand, as a modified example of the protrusion 211, a structure may be adopted in which the protrusion protrudes from the inner side surface of the inner tube 210 toward the center side of the inner tube 210 and is inclined toward the rotation direction of the inner tube 210.

Accordingly, when the inner cylinder 210 rotates in the direction opposite to the crushing blade 120, the supporting force of the protrusion 211 for supporting the object to be stirred is further increased, and the action of inverting the object to be stirred can be further increased.

For reference, the inclined structure of the protrusion 211 means, in particular, a structure in which the surface of the protrusion 211 located near the rotation direction side of the inner cylinder 210 is inclined.

Here, the protrusion 211 is preferably inclined by 20 to 60 degrees in the rotation direction of the inner tube 210 with respect to the reverse radial direction of the inner tube 210.

If the inclination angle of the protrusion 211 is less than 20 degrees, the inclination angle of the protrusion 211 is close to the imaginary line of the reverse radial direction of the inner cylinder 210, and when the inner cylinder 210 rotates in the direction opposite to the crushing blade 120, the supporting force of the protrusion 211 for supporting the object to be stirred is reduced, and the object to be stirred cannot be sufficiently reversed.

If the inclination angle of the protrusion 211 is larger than 60 degrees, the space between the inner side surface of the inner cylinder 210 and the protrusion 211 is reduced, and the stirring target object may not be sufficiently inverted as the amount of support of the stirring target object is reduced.

Further, the protrusion 211 is formed in plural along the inner circumferential surface of the inner cylinder 210, and as another embodiment, as shown in fig. 13, the shapes of the cross sections of two adjacent protrusions 211 among the plural protrusions 211 may be different from each other.

If the cross-sectional shapes of the adjacent two projections 211 are different from each other, the vortex of the object to be stirred caused by the projections 211 may also exhibit irregular flow, and thus the pulverizing performance of the mixer of the present invention will be improved.

As a specific example, the cross-section of the protrusion 211 may be an angular or curved structure, as shown in the figures.

Further, the rotation speed of the inner cylinder 210 is preferably 60rpm to 400 rpm.

When the rotation speed of the inner cylinder 210 is faster than 400rpm, the force for sucking the object to be stirred into the inner side surface of the inner cylinder 210 increases, and thus the pulverization performance of the agitator decreases, whereas when the rotation speed of the inner cylinder 210 is 60rpm to 400rpm, the force for sucking the object to be stirred into the inner side surface of the inner cylinder 210 decreases greatly, and thus the pulverization performance of the agitator can be prevented from decreasing.

Of course, when the rotation speed of the inner cylinder 210 is slower than 60rpm, the object to be stirred rotates only in the direction in which the grinding blade 120 rotates, but hardly reverses, thereby making the rotation of the inner cylinder 210 meaningless.

On the other hand, the arrangement structure of the blade driving unit 130 and the inner cylinder driving unit 220 according to the embodiment described above will be described in detail with reference to fig. 1 and 2.

The blade driving part 130 and the inner cylinder driving part 220 are both disposed at the lower side of the inner cylinder 210, or the blade driving part 130 is disposed at the lower side of the inner cylinder 210, and the inner cylinder driving part 220 can be disposed at the upper side of the inner cylinder 210.

At this time, a structure in which the blade driving part 130 and the inner cylinder driving part 220 are both provided at the lower side of the inner cylinder 210 will be described as follows, the blade driving part 130 being provided at the lower side of the pulverizing blade 120, and the inner cylinder driving part 220 being provided at the lower side of the inner cylinder 210. As shown in the drawing, a blade drive motor M1 of the blade drive unit 130 and an inner cylinder drive motor M2 of the inner cylinder drive unit 220 are built in the support block 150 located below the mixer main body 100.

In addition, the configuration in which the blade driving unit 130 is provided below the inner cylinder 210 and the inner cylinder driving unit 220 is provided above the inner cylinder 210 is such that the blade driving unit 130 is provided below the crushing blade 120 and the inner cylinder driving unit 220 is provided above the inner cylinder 210. As shown in the drawing, a blade driving motor M1 of the blade driving unit 130 may be built in the supporting block 150 located at the lower side of the mixer main body 100, and although not shown in the drawing, an inner cylinder driving motor M2 of the inner cylinder driving unit 220 may be mounted on the outer cylinder cover 140.

More specifically, the internal structures of the blade driving part 130 and the inner cylinder driving part 220 will be described.

The blade driving part 130 may include: a blade rotating shaft 131 vertically connected to the crushing blade 120; the blade driving motor M1 is connected to the blade rotation shaft 131 so as to be able to rotate the blade rotation shaft 131.

In addition, the inner cylinder driving part 220 may include: a rotary bracket 221 for mounting the inner barrel 210; an inner cylinder rotation shaft 222 vertically connected to the rotation bracket 221; and an inner cylinder driving motor M2 connected to the inner cylinder rotation shaft 222 so as to be able to rotate the inner cylinder rotation shaft 222.

As an example, as shown in the figure, the rotating bracket 221 is disposed at the bottom surface of the inside of the outer cylinder 110, and the inner cylinder 210 can be installed at the upper portion thereof, the blade rotating shaft 131 is disposed in the central hole 222a of the inner cylinder rotating shaft 222, and the inner cylinder rotating shaft 222 can be connected to the inner cylinder driving motor M2 at one side by the driving belt 223.

For reference, the upper portion of the supporting block 150 is provided with a fixing seat 151, the fixing seat 151 is mounted with and locked to the outer cylinder 110, the fixing seat 151 is mounted with a bearing 152, the bearing 152 is used for rolling supporting the blade rotating shaft 131 and the inner cylinder rotating shaft 222, and the blade rotating shaft 131 and the inner cylinder rotating shaft 222 penetrate through the fixing seat 151.

In addition, the inner cylinder unit 200 may further include an inner cylinder cover 230 covering and clamping the inner cylinder 210.

As shown in fig. 14, a center protrusion 231 may be formed on the upper portion of the inner cylinder cover 230, and a protrusion support groove 140a may be formed on the outer cylinder cover 140 of the mixer body 100 to rotatably support the center protrusion 231 of the inner cylinder cover 230 by inserting the protrusion support groove 140 a.

When the inner cylinder 210 is driven to rotate by connecting the bottom thereof to the inner cylinder driving part 220, the upper part thereof may be shaken, and the following structure may be employed to prevent such shaking of the upper part. That is, the inner cylinder cover 230 may be covered and clamped on the upper portion of the inner cylinder 210 to support the upper portion of the inner cylinder 210, and then the center protrusion 231 of the inner cylinder cover 230 may be inserted into and supported by the protrusion support groove 140a of the outer cylinder cover 140. Thereby, the upper portion of the inner cylinder 210 can be stably and stably supported when the inner cylinder 210 rotates. At this time, the protrusion support groove 140a of the outer cylinder cover 140 may be a center hole at an inner wheel of the cover bearing 141 mounted at the bottom of the outer cylinder cover 140.

Further, as another embodiment, together with the protrusion support part, a support roller 111 for supporting the outer side surface of the inner cylinder 210 may be mounted on the outer cylinder 110 of the mixer body 100. The support rollers 111 support the upper portion of the inner cylinder 210, as shown, particularly on the outer side of the inner cylinder 210, thereby stably and stably supporting the upper portion of the inner cylinder 210.

As shown in fig. 3, the inner cylinder 210 may have a plurality of water discharge holes 210a formed in a side portion thereof to dehydrate the object to be stirred during rotation.

After the object to be stirred is placed in the inner cylinder 210, when the crushing blade 120 provided in the inner cylinder 210 rotates, the object to be stirred can be crushed, and the inner cylinder 210 also rotates, so that the liquid (juice) contained in the object to be stirred is discharged to the outside of the inner cylinder 210 through the drain hole 210 a.

Of course, as shown in fig. 6 to 12, the inner cylinder 210 may be configured without a drain hole.

For reference, the inner cylinder 210 shown in fig. 15(a) is a pulverization-dedicated inner cylinder, and the inner cylinder 210 shown in fig. 15(b) is a dehydration-dedicated inner cylinder.

Specifically, in order not to implement the dehydration function when the crushing blade 120 is rotated, as shown in fig. 15(a), the inner cylinder 210 having no drain hole may be used, and in the case of using the inner cylinder 210, only the function of guiding the object to be stirred to flow spirally downward as the function of the protrusion 211 may be implemented, and subsequently, in the case of requiring the dehydration function, the crushed object to be stirred may be placed in the replaced inner cylinder 210 after replacing the inner cylinder 210 having the drain hole 210 a.

At this time, in order to simultaneously perform the pulverizing function of the pulverizing blades 120, the inner cylinder 210 shown in fig. 3 may be replaced, and in order to perform only the dehydrating function without performing the pulverizing function of the pulverizing blades 120, the inner cylinder 210 formed with only the water discharge holes 210a may be replaced as shown in fig. 15 (b). At this time, a bottom groove 210b is formed in a bottom surface of the inner cylinder 210 facing the outer cylinder 110 so that the crushing blade 120 can be positioned outside the inner cylinder 210, and the crushing blade 120 is inserted into the bottom groove 210b and provided.

As shown in fig. 1, a discharge pipe 112 may be formed at the bottom of the outer cylinder 110 to discharge the liquid dehydrated by the object to be stirred to the outside, and an opening and closing valve 112a may be installed on the discharge pipe 112.

On the other hand, as shown in fig. 1, the blender according to the present invention may further include a vacuum unit 300 configured to form a vacuum inside the inner tub 210.

Here, the vacuum unit 300 may include: a suction pipe 310 communicating with the inner cylinder 210; and a vacuum driving part 320 communicating with the suction pipe 310. In this case, the vacuum driving part 320 may include a vacuum motor M3 and a vacuum pump P.

With the vacuum unit 300 configured as described above, the stirring operation including the pulverizing operation and the dehydrating operation can be performed under vacuum, so that the object to be stirred including fruits or vegetables and the like can perform the stirring operation without being oxidized, and thus a liquid (juice) fresh and having no nutrient components destroyed can be obtained.

In addition, as an example, the mixer body 100 may further include: a support block 150 for supporting the outer tub 110; and a handle 160 connecting the outer cylinder 110 and the support block 150. The vacuum driving part 320 is built in the support block 150, and the suction tube 310 may be built in the handle 160.

As another example, as shown in fig. 6 to 8, a handle is connected only to the outer cylinder, and the support block further includes a vertical connection part extended to an upper portion of the outer cylinder, in which case a suction pipe communicating with the inner cylinder may be built in.

Further, the specific structure of the vacuum unit of the stirrer of the present invention is not limited to the structure of the present invention, and any conventional structure may be applied.

For reference, the supporting block 150 includes a control part for controlling the blade driving motor M1 of the blade driving part 130, the inner cylinder driving motor M2 of the inner cylinder driving part 220, and the vacuum motor M3 of the vacuum driving part 320 as described above, and an input panel and a display panel of the control part may be mounted on an outer surface of the supporting block 150.

As a result, the agitator according to the present invention controls the inner cylinder driving part 220 by the controller to agitate the object to be agitated while changing the rotation direction of the inner cylinder 210 or repeating the mode of rotating the inner cylinder 210 in the direction opposite to the rotation direction of the crushing blade 120 and then stopping it or repeating the mode of changing the rotation speed after reversing it, and thus generating irregular flow of the object to be agitated, so that the object to be agitated does not accumulate as if it were a wall shape on the inner side surface of the inner cylinder 210 but can return to the crushing blade 120 rotating at the central portion of the inner cylinder 210 again, thereby generating an effect of remarkably improving the crushing performance.

That is, the stirring machine according to the present invention is configured to generate irregular flow of the object to be stirred, and thus can push down the object to be stirred which is maintained in a wall-like shape on the inner side surface of the inner cylinder 210, and finally can improve the pulverizing performance with respect to the object to be stirred.

Further, according to the agitator of the present invention, in order to rotate the object to be agitated in the direction opposite to the crushing blade 120 and to flow downward, the protrusion 211 is formed on the inner side surface of the inner cylinder 210, wherein the protrusion 211 has a spiral protrusion shape capable of guiding the object to be agitated to flow downward spirally, so that the object to be agitated, which flows upward by being pushed radially by the centrifugal force, flows toward the crushing blade 120 provided at the lower side inside the inner cylinder 210, thereby further improving the crushing effect of the agitator.

In addition, since the mixer according to the present invention has the guide portion 212 for guiding the object to be mixed to slide toward the center of the inner cylinder 210 formed below the protrusion 211 located in the lateral direction of the crushing blade 120, the object to be mixed can be prevented from being caught between the crushing blade 120 and the protrusion 211, thereby preventing the crushing blade 120 from stopping rotating at the initial stage of operation.

Further, the mixer according to the present invention may be configured such that the protrusion 211 protrudes from the inner side surface of the inner cylinder 210 toward the center of the inner cylinder 210 and is inclined toward the rotation direction of the inner cylinder 210, and thus when the inner cylinder 210 rotates in the direction opposite to the crushing blade 120, the supporting force of the protrusion 211 for supporting the object to be mixed is further increased, and the action of reversing the object to be mixed is further increased.

Fig. 16 is a view showing a stirrer according to still another embodiment of the present invention, fig. 17 is a view showing the inside of the stirrer of fig. 5, and fig. 18 and 19 are views showing an operation state of an inner cylinder driving part of the stirrer of fig. 17.

Referring to the drawings, a blender according to another embodiment of the present invention includes a blender body 1100 and an inner barrel unit 1200.

The mixer body 1100 may include an outer tub 1110, a crushing blade 1120, and a blade driving part 1130.

Specifically, the outer cylinder 1110 has an upper opening structure with a closed bottom and an open top in order to accommodate the object to be stirred therein, and is configured to be opened and closed by an outer cylinder cover 1140.

Meanwhile, the outer tub 1110 is seated in a tub support case 1300, which will be described later. Before the outer tub 1110 is covered with the mixer cover 1140, it may be covered and closed by an outer tub cover 1110a on the top, and such an outer tub cover 1110a may have a suction hole formed thereon so that the outer tub 1110 is vacuumed by a vacuum unit 1400 to be described later.

Further, a downwardly inclined discharge part (not shown) may be formed on the side bottom end part of the outer tub 1110, so that it is possible to discharge juice without separating the outer tub 1110 from the tub support case 1300 when the juice of the objects to be stirred is discharged from the dehydrating holes 11210a of the inner tub 1210 through a dehydrating process, which will be described later.

In this case, the object to be kneaded is food that can be pulverized into juice by the operation of the mixer.

Also, the crushing blade 1120 is provided in the inner cylinder 1210, and performs a function of crushing the objects to be stirred in the inner cylinder 1210 into juice while rotating.

Meanwhile, the blade driving part 1130 is provided to rotate the crushing blade 1120.

In addition, the outer cylinder 1110 is supported by a cylinder support case 1300, and the cylinder support case 1300 has an L shape as shown in the drawing as a whole.

The cartridge support housing 1300 is composed of a bottom housing portion 1310 positioned at a lower side of the outer cartridge 1110, and a side housing portion 1320 extending upward from the bottom housing portion 1310 and connected to the agitator cover 1140.

Specifically, in the cartridge support case 1300, an upper surface of a bottom case portion 1310 provided in a lateral direction is used to receive an outer cartridge 1110, and a top end of a side case portion 1320 extending upward from the bottom case portion 1310 and provided in a longitudinal direction is hinged to a mixer cover 1140 rotatable in an up-down direction.

Such a cartridge support case 1300 is internally provided with a blade driving part 1130 and an inner cartridge driving part 1220 to be described later, when the outer cartridge 1110 internally provided with the inner cartridge 1210 is seated, the crushing blade 1120 located inside the inner cartridge 1210 is interconnected with the blade driving part 1130 provided in the cartridge support case 1300 to transmit a driving force, and the inner cartridge 1210 provided inside the outer cartridge 1110 is interconnected with the inner cartridge driving part 1220 provided in the cartridge support case 1300 to transmit a driving force.

More specifically, the outer cartridge 1110 is detachably coupled with the cartridge support case 1300. For example, a spiral protrusion for insertion into the cartridge support case 1300 is formed on the outer circumferential surface of the bottom protrusion 1110b of the outer cylinder 1110, and a spiral groove is formed on the inner circumferential surface of the mounting groove 1300a of the cartridge support case 1300 for mounting the bottom protrusion 1110b, so that the protrusion can be inserted into the groove to mount the outer cylinder on the cartridge support case 1300, and the outer cylinder 1110 can be removed by the reverse rotation.

Meanwhile, the outer cylinder 1110 includes a plurality of intermediate rotating shafts for transmitting driving force transmitted from the outside to the pulverizing blade 1120 and the inner cylinder 1210 provided inside, respectively. Specifically, the outer tube 1110 includes a first intermediate rotation shaft 1121 and a second intermediate rotation shaft 1211 surrounding the first intermediate rotation shaft 1121.

Wherein the first intermediate rotary shaft 1121 has a structure capable of transmitting power received from the blade driving motor 1132 disposed in the cartridge support housing 1300 to the pulverizing blade 1120, and for this, as an example, the lower portion of the first intermediate rotary shaft 1121 may be key-connected with the blade rotary shaft 1131 of the blade driving portion 1130 and the upper portion may be key-connected with the pulverizing blade 1120.

In addition, the second intermediate rotation shaft 1211 has a structure capable of transmitting power received from the inner cylinder driving motor 1222 disposed in the cylinder support case 1300 to the inner cylinder 1210, and for this, as an example, the lower portion of the second intermediate rotation shaft 1121 may be key-connected with the inner cylinder rotation shaft 1221 of the inner cylinder driving part 1220, and the upper portion may be key-connected with the inner cylinder 1210.

At this time, a bearing may be disposed between the first intermediate rotation shaft 1121 and the second intermediate rotation shaft 1211 so as to rotate independently of each other.

The inner cylinder unit 1200 includes an inner cylinder 1210 and an inner cylinder driving unit 1220.

Wherein the inner cylinder 1210 is disposed inside the outer cylinder 1110 and can be closed by covering an inner cylinder cover 11210a on the top thereof before being inserted into a cylinder support case 1300 which will be described later, such inner cylinder cover 11210a may have a suction hole formed thereon so that a vacuum state of the inner cylinder 1210 is formed by a vacuum unit 1400 which will be described later.

Meanwhile, the inner side surface of such an inner cylinder 1210 is formed with at least one protrusion 1213 to block the stirring target object pulverized and rotationally flowed by the pulverizing blade 1120.

In a state where the object to be stirred is accommodated in the inner cylinder 1210, when the crushing blade 1120 rotates, if the object to be stirred collides with the protrusions 1213 formed on the inner side surface of the inner cylinder 1210 in the inverted state, the turbulence of the object to be stirred generated thereby increases, thereby enhancing the crushing effect of the object to be stirred.

Further, the object to be stirred is pushed radially by the rotational centrifugal force of the crushing blade 1120 and flows upward, but since the spiral protrusion 1213 for guiding the downward spiral flow of the object to be stirred is formed on the inner side surface of the inner cylinder 1210, the object to be stirred can be made to flow toward the crushing blade 1120 provided on the inner lower side of the inner cylinder 1210, and the crushing effect of the mixer can be further improved.

Meanwhile, in order to make the inner cylinder 1210 flow irregularly with respect to the object to be stirred, a controller (not shown) may control an inner cylinder driving motor 1222 of an inner cylinder driving part 1220, which will be described later, to repeat a mode of rotating the inner cylinder 1210 in a direction opposite to the crushing blade 1120 or stopping after reverse rotation, or a mode of changing a speed after reverse rotation.

Further, a plurality of dehydrating holes 1210b for performing a dehydrating process are formed at a side portion of the inner cylinder 1210 so that juice is extracted from the objects to be stirred, which are pulverized by the pulverizing blade 1120.

At this time, although the dewatering holes 1210b are illustrated in a large size in the drawings, the dewatering holes 1210b are actually very small holes that can discharge only juice of the objects to be stirred, and the dewatering holes 1210b may be formed in a plurality in a mesh structure at a side portion of the inner tube 1210. Further, as shown in the drawing, the dewatering holes 1210b may be directly formed at the side of the inner cylinder 1210, and, although not shown in the drawing, may be provided as a separate member, for example, a structure in which a mesh member is installed as a part of the side of the inner cylinder 1210 may be employed.

Meanwhile, the dehydration holes 1210b may be formed at the bottom or the side of the inner tube 1210, and at this time, are preferably formed at the side instead of the bottom, and are further preferably formed at the side above a preset height, because when the agitation target object is agitated, a certain amount of liquid (e.g., separately supplied water or juice generated from the agitation target object during pulverization) is retained to enhance the agitation effect.

Of course, even if the dehydrating holes 1210b are formed at the side of the inner cylinder 1210 at a predetermined height or more, when dehydrating the objects to be stirred, since the inner cylinder 1210 rotates at a much faster speed than when pulverizing, the pulverized objects to be stirred can easily move upward along the inner side of the inner cylinder 1210, and thus the juice can be dehydrated through the dehydrating holes 1210b and flow out to the outside of the inner cylinder 1210.

Meanwhile, the inner cylinder driving part 1220 is provided to rotate the inner cylinder 1210.

Specifically, the inner cylinder driving part 1220 includes an inner cylinder rotation shaft 1221, an inner cylinder driving motor 1222, and an inner cylinder driving connection part 1223.

The blade driving unit 1130 includes a blade rotating shaft 1131, a blade driving motor 1132, and a blade driving connection unit 1133.

Wherein, when the outer tub 1110 is mounted to the tub supporting case 1300, the tub rotating shaft 1221 is connected with the bottom of the inner tub 1210 built in the outer tub 1110 to provide a rotational driving force, and the blade rotating shaft 1131 is connected with the bottom of the pulverizing blade 1120 built in the inner tub 1210 to provide a rotational driving force.

At this time, the blade rotation shaft 1131 is installed to rotate around a shaft in a hollow portion formed in the inner cylinder rotation shaft 1221, thereby constituting a structure in which the blade rotation shaft 1131 and the inner cylinder rotation shaft 1221 rotate around the shaft independently of each other.

That is, a bearing is provided in a hollow portion of the inner cylinder rotation shaft 1221 so that the blade rotation shaft 1131 is penetratingly installed therein, so that the blade rotation shaft 1131 can be independently axially rotated inside the inner cylinder rotation shaft 1221.

On the other hand, the inner cylinder driving part 1220 employs a structure in which a gear engagement structure of the inner cylinder driving connection part 1223 is variable so that the inner cylinder 1210 has different rotation speeds during pulverization and dehydration of the agitation target object.

That is, in the case of crushing and dehydrating the objects to be stirred by the stirrer, since juice is extracted from the objects to be stirred (dehydration is performed), the rotation speed of the inner tub 1210 is faster than that in the crushing, and therefore, the inner tub drive connection 1223 adopts a gear engagement structure in which the rotation speed of the inner tub 1210 is slower than that in the dehydration when the objects to be stirred are crushed, and adopts a gear engagement structure in which the rotation speed of the inner tub 1210 is faster than that in the dehydration when the objects to be stirred are dehydrated.

Accordingly, in the present invention, when the objects to be stirred are pulverized, the reverse rotation speed of the inner cylinder 1210 can be reduced and the torque can be increased, so that the objects to be stirred, which are close to the inner side of the inner cylinder 1210, can be smoothly reversed among the objects to be stirred which are rotated forward by the forward rotation of the pulverizing blade, and when the objects to be stirred are dehydrated, the rotation speed of the inner cylinder 1210 can be increased as much as possible compared to when the objects to be stirred are pulverized, thereby maximizing the dehydration effect.

Specifically, the inner cylinder drive connection unit 1223 has a small drive gear 1223b and a large drive gear 1223c attached to an inner cylinder drive shaft 1223a connected to the inner cylinder drive motor 1222, and has a large driven gear 1223e and a small driven gear 1223f attached to an inner cylinder rotation shaft 1221 or an intermediate rotation shaft 1223d that rotates in conjunction with the inner cylinder rotation shaft 1221.

Among them, the inner cylinder driving shaft 1223a and the inner cylinder rotation shaft 1221 are arranged in parallel to each other, and as an example, when a driving force is transmitted from the inner cylinder driving shaft 1223a to the inner cylinder rotation shaft 1221, an intermediate rotation shaft 1223d as an intermediate additional driving force transmission medium may be arranged in parallel to the inner cylinder driving shaft 1223a and the inner cylinder rotation shaft 1221.

At this time, the large and small driven gears 1223e and 1223f may be directly mounted on the inner cylinder rotation shaft 1221, and may be mounted on the intermediate rotation shaft 1223d as shown. In this specification, an example of mounting on the intermediate rotation shaft 1223d will be described.

Therefore, when the large driven gear 1223e and the small driven gear 1223f are directly attached to the inner cylinder rotation shaft 1221, the arrangement of the large driven gear 1223e and the small driven gear 1223f, which will be described later, can be applied to the inner cylinder rotation shaft 1221 as a matter of course.

The small drive gear 1223b and the large drive gear 1223c are provided on the inner cylinder drive shaft 1223a at intervals from each other in the axial direction, and the large driven gear 1223e and the small driven gear 1223f are provided on the intermediate rotation shaft 1223d at intervals from each other in the axial direction.

At this time, the small driving gear 1223b and the large driving gear 1223c are sequentially arranged on the inner cylinder driving shaft 1223a, and the large driven gear 1223e and the small driven gear 1223f are sequentially arranged on the intermediate rotating shaft 1223d, so that the small driving gear 1223b of the inner cylinder driving shaft 1223a corresponds to the large driven gear 1223e of the intermediate rotating shaft 1223d, and the large driving gear 1223c of the inner cylinder driving shaft 1223a corresponds to the small driven gear 1223f of the intermediate rotating shaft 1223 d.

As an example, as shown in the drawing, a small drive gear 1223b and a large drive gear 1223c are sequentially arranged in order from bottom to top on the inner cylinder drive shaft 1223a, and a large driven gear 1223e and a small driven gear 1223f are sequentially arranged in order from bottom to top on the intermediate rotation shaft 1223 d.

For reference, the names of the respective members include respective meanings that the small driving gear 1223b has a relatively smaller diameter than the large driving gear 1223c, and the large driven gear 1223e has a relatively larger diameter than the small driven gear 1223 f.

In the inner cylinder drive connection 1223 configured as described above, the inner cylinder drive shaft 1223a reciprocates in the axial direction, and thus, it is possible to have a structure in which, when the small drive gear 1223b is gear-engaged with the large driven gear 1223e, the large drive gear 1223c is gear-disengaged with the small driven gear 1223 f; and a configuration in which the small driving gear 1223b is gear-non-meshed with the large driven gear 1223e when the large driving gear 1223c is gear-meshed with the small driven gear 1223 f.

That is, as shown in fig. 18, when the object to be stirred is ground, the inner cylinder drive shaft 1223a moves downward in the axial direction so that the large drive gear 1223c and the small driven gear 1223f are geared with each other, and at this time, the inner cylinder 1210 is decelerated, but rotates with a large torque, and therefore can smoothly rotate in the opposite direction to the grinding blade.

Further, as shown in fig. 19, when the objects to be stirred are dehydrated, the inner cylinder driving shaft 1223a is moved downward in the axial direction so that the large driving gear 1223c is gear-engaged with the small driven gear 1223f, and the inner cylinder 1210 is rotated at a relatively faster speed than when the objects to be stirred are pulverized, so that the dehydrating action of extracting juice from the objects to be stirred can be performed efficiently.

Further, although not shown in the drawings, in the inner cylinder drive connection 1223, the inner cylinder drive shaft 1223d may not be reciprocally moved in the axial direction, but as the intermediate rotation shaft 1223d is reciprocally moved in the axial direction, when the small drive gear 1223b is gear-engaged with the large driven gear 1223e, the large drive gear 1223c is gear-disengaged with the small driven gear 1223 f; and a configuration in which the small driving gear 1223b is gear-non-meshed with the large driven gear 1223e when the large driving gear 1223c is gear-meshed with the small driven gear 1223 f.

Further, although not shown in the drawings, when the large driven gear 1223e and the small driven gear 1223f are directly attached to the inner cylinder rotation shaft 1221, the inner cylinder rotation shaft 1221 can be moved in the axial direction as a matter of course.

On the other hand, the inner cylinder driving connection part 1223 may include a shaft moving member 1223g that moves the inner cylinder driving shaft 1223a in the axial direction, and in this case, the shaft moving member 1223g may be any conventional driving member such as a solenoid valve cylinder.

One end of the inner cylinder driving shaft 1223a is coupled to the motor shaft 1222a of the inner cylinder driving motor 1222 in an interlocking manner so as to be rotatable around the shaft, and is slidably locked to the motor shaft 1222a of the inner cylinder driving motor 1222 in an axially movable manner, and the other end of the inner cylinder driving shaft 1223a is coupled to the shaft moving member 1223g in a rotatable manner around the shaft.

That is, one end of the inner cylinder driving shaft 1223a is coupled to the motor shaft 1222a of the inner cylinder driving motor 1222 in an interlocking manner so as to be rotatable around the shaft, so that when the motor shaft 1222a rotates around the shaft in accordance with the operation of the inner cylinder driving motor 1222, the motor shaft 1222a is interlocked and rotated around the shaft to obtain the rotational driving force provided by the inner cylinder driving motor 1222.

Meanwhile, one end of the inner cylinder driving shaft 1223a is slidably locked to the motor shaft 1222a of the inner cylinder driving motor 1222 in an axially movable manner, so that a key connection state with the motor shaft 1222a can be maintained while being axially moved by the shaft moving member 1223 g.

As an example, the cross section of the central hole 1222b of the motor shaft 1222a may be rectangular, and the cross section of one end of the inner cylinder driving shaft 1223a is combined with the cross section of the central hole 1222b of the motor shaft 1222a, so that one end of the inner cylinder driving shaft 1223a may be coupled to the motor shaft 1222a in a linkage manner to rotate around the shaft and be slidably locked in an axial direction.

The other end of the inner cylinder drive shaft 1223a is connected to the shaft moving member 1223g so as to be rotatable around the shaft, and is connected to the shaft moving member 1223g so as to be rotatable around the shaft when the shaft moving member 1223g moves in the axial direction.

As an example, the other end of the inner cylinder driving shaft 1223a may be connected to the shaft moving member 1223g through a shaft rotating bearing 1223 h.

The gear structure of the inner cylinder driving connection part 1223 described above may be configured such that the rotation speed of the inner cylinder 1210 when dehydrating the object to be stirred is 5 times or more faster than the rotation speed of the inner cylinder 1210 when pulverizing the object to be stirred.

As a specific example, the gear structure of the inner cylinder driving connection 1223 is configured such that the rotation speed of the inner cylinder 1210 when pulverizing the object to be stirred is 50 to 350rpm, and the rotation speed of the inner cylinder 1210 when dehydrating the object to be stirred is 1500 to 3500 rpm.

According to the structure of the inner cylinder driving connection part 1223 as described above, in the present invention, when the object to be stirred is pulverized, the torque can be maximally increased by decreasing the rotation speed of the inner cylinder 1210, and when the object to be stirred is dehydrated, the dehydration effect can be maximally increased by maximally increasing the rotation speed of the inner cylinder 1210.

On the other hand, as another example, as shown in fig. 20 and 21, the gear engagement structure of the inner cylinder drive connection 1223 of the inner cylinder drive portion 1220 shown is variable so that the inner cylinder 1210 has different rotation speeds when pulverizing and dehydrating the object to be stirred, and specifically, a pressing member 1230 may be provided, and the pressing member 1230 may press the inner cylinder drive shaft 1223a in the axial direction to reciprocate it, so that the gear engagement structure of the inner cylinder drive connection 1223 may be changed.

That is, the pressing member 1230 is configured to move the inner cylinder driving shaft 1223a in the axial direction, and configured to press the inner cylinder driving shaft 1223a in the axial direction until the inner cylinder driving connection portion 1223 completes the change of the gear engagement structure, without moving the inner cylinder driving shaft 1223a only for a moment regardless of whether the gear engagement structure is changed or not.

As one example, when the small driving gear 1223b of the inner cylinder driving shaft 1223a and the large driven gear 1223e of the inner cylinder rotation shaft 1221 or the intermediate rotation shaft 1223d are changed from a non-gear-meshed state to a gear-meshed state, the gear-meshed structure may be changed, but when the small driving gear 1223b moves to the large driven gear 1223e side, if the gear teeth of the small driving gear 1223b and the gear teeth of the large driven gear 1223e are in contact with only the side surfaces of each other without achieving meshing between the gear teeth, there may be a problem that the gear-meshed structure is not changed.

In the example as described above, if the gear teeth of the small driving gear 1223b and the gear teeth of the large driven gear 1223e are not engaged when the small driving gear 1223b moves to the large driven gear 1223e side, in order to prevent the problem that the gear engagement structure is not variable, the pressing member 1230 according to the present invention continuously presses the inner cylinder driving shaft 1223a in the axial direction, so that the gear teeth of the small driving gear 1223b can be made to enter between the gear teeth of the large driven gear 1223e when the small driving gear 1223b rotates, and finally the gear teeth of the small driving gear 1223b and the gear teeth of the large driven gear 1223e are made to engage with each other.

Specifically, the pressing member 1230 may include a pneumatic cylinder 1231 and a spring 1232.

Wherein the pneumatic cylinder 1231 can press the inner cylinder driving shaft 1223a in one direction (toward a lower side in the drawing) of the axial direction.

As shown, the pneumatic cylinder 1231 may include a cylinder 1231a and a plunger 1231 b.

At this time, the cylinder 1231a may be formed at one side thereof with an air suction hole h communicated with an external air suction pump, and such an air suction hole h may be connected to the vacuum unit 1400 so as to allow air to be discharged from the inside of the cylinder 1231a by the operation of the vacuum unit 1400.

Further, the plunger 1231b may include a head portion H and a rod portion R.

The head H is built in the cylinder 1231a and is movable in the longitudinal direction of the cylinder 1231a in accordance with air suction through the suction hole H.

Meanwhile, the rod portion R extends from the head portion H to the outside of the cylinder 1231a, and is connected to the inner cylinder drive shaft 1223a through the connecting moving rod 1240. At this time, the inner cylinder driving shaft 1223a is pivotably locked with the connecting moving bar 1240, for example, by a bearing member.

In addition, the spring 1232 can press the inner cylinder drive shaft 1223a in the other direction (toward the upper side in the drawing) in the axial direction.

Specifically, the spring 1232 is configured such that one end is supported by a fixing plate 1250, the fixing plate 1250 is locked such that the inner cylinder driving shaft 1223a is axially moved and rotated about the axis, and the other end of the spring 1232 is supported by a connecting moving rod 1240, so that the connecting moving rod 1240 is elastically pressed when the pumping process of the pneumatic cylinder 1231 is stopped, so that the fixing plate 1250 moved by the movement of the pneumatic cylinder 1231 is reversely moved. For reference, the inner cylinder driving shaft 1223a is pivotably locked with the fixing plate 1250, as an example, by a bearing member.

The process of the inner cylinder driving shaft 1223a axially reciprocating by the pneumatic cylinder 1231 and the spring 1232 having the above-described configuration is specifically as follows.

First, as shown in fig. 20, when air is discharged through the air extraction hole of the pneumatic cylinder 1231, the internal space of the cylinder 1231a on the air extraction hole side becomes a negative pressure, the plunger 1231b is lowered, and the connecting moving rod 1240 is lowered in conjunction with the plunger 1231b, so that the inner cylinder drive shaft 1223a is lowered.

Accordingly, the small driving gear 1223b is geared with the large driven gear 1223e, and the inner cylinder 1210 rotates at a low speed and with a high torque, thereby efficiently crushing the object to be stirred in the inner cylinder 1210.

Of course, as the connecting moving bar 1240 descends, the spring 1232 is compressed between the fixing plate 1250 and the connecting moving bar 1240.

In addition, on the contrary, as shown in fig. 21, when the air suction through the suction hole of the pneumatic cylinder 1231 is stopped, the inner space on the suction hole side in the cylinder 1231a is changed from the negative pressure to the atmospheric pressure, and at this time, the spring 1232 extends upward and elastically presses the link moving rod 1240 in a state that the lower end thereof is supported by the fixing plate 1250, whereby the link moving rod 1240 is raised and the inner cylinder driving shaft 1223a is raised in conjunction with the link moving rod 1240.

Accordingly, the large driving gear 1223c is geared with the small driven gear 1223f, and the inner cylinder 1210 rotates at a high speed and with a low torque, thereby efficiently dehydrating the object to be stirred in the inner cylinder 1210.

Further, although not shown in the drawings, the spring 1232 may be replaced by using one more pneumatic cylinder. That is, the lifting and lowering of the inner cylinder driving shaft 1223a can be achieved by two cylinders arranged in opposite directions.

For reference, among elements not described in fig. 20 and 21, elements having the same reference numerals as those shown in fig. 17 and 18 have the same structure, and thus detailed description thereof will be omitted.

As described above, the mixer according to the present invention may have a structure in which the gear engagement structure of the inner cylinder driving connection part 1229 is variable, so that the inner cylinder 1210 may have different rotation speeds when the mixing target object is crushed and when the mixing target object is dehydrated, or may have a structure in which a plurality of inner cylinder driving motors 1228 are provided, so that the torque may be increased while the reverse rotation speed of the inner cylinder 1210 is reduced when the mixing target object is crushed, so that the mixing target object located closer to the inner side of the inner cylinder 1210 is smoothly reversed among the mixing target objects rotated forward by the forward rotation of the crushing blade, and the rotation speed of the inner cylinder 1210 may be increased as much as possible when the mixing target object is dehydrated, compared to when the mixing target object is crushed, to maximize the dehydration effect.

On the other hand, as another example of the agitator according to the present invention, a pressing member 1230 may be further provided, and the pressing member 1230 presses the inner cylinder driving connection 1223 of the inner cylinder driving part 1220 to complete the change of the gear engagement structure, so in a case where the inner cylinder driving shaft 1223a moves axially and the gear teeth of the gear are not yet engaged, the inner cylinder driving shaft 1223a may be continuously pressed axially to complete the change of the gear engagement structure, and the gear teeth may be finally engaged with the rotation of the gear, and the gear engagement structure of the inner cylinder driving connection 1223 may be completely changed.

FIG. 22 is a view showing another inside of the still another embodiment of the mixer according to FIG. 16, and FIGS. 23 and 24 are views showing an operation state of an inner cylinder driving part of the mixer of FIG. 22.

Referring to the drawings, a blender according to still another embodiment of the present invention includes a blender body 1100 and an inner cylinder unit 1200, wherein an outer cylinder 1110, a pulverizing blade 1120, and a blade driving part 1130 of the blender body 1100 and an inner cylinder 1210 of the inner cylinder unit 1200 are the same as those of the blender shown in fig. 17, and thus detailed description will be omitted. That is, detailed descriptions of elements having the same reference numerals will be omitted.

Meanwhile, the illustrated inner cylinder unit 1200 includes an inner cylinder 1210 and an inner cylinder driving part 1220, in which a structure in which a blade rotation shaft 1131 of the blade driving part 1130 is pivotably provided in a center hole 1222b formed in an inner cylinder rotation shaft 1221 of the inner cylinder driving part 1220 and a structure in which the blade rotation shaft 1131 and the inner cylinder rotation shaft 1221 are pivotably rotated independently of each other are the same.

On the other hand, the illustrated inner cylinder driving unit 1220 includes an inner cylinder rotation shaft 1221, an inner cylinder driving motor 1228, and an inner cylinder driving connection unit 1229 connecting the inner cylinder rotation shaft 1221 and the inner cylinder driving motor 1228.

A plurality of inner cylinder driving motors 1228 are provided so that the inner cylinders 1210 have different rotation speeds when crushing and dehydrating the object to be stirred.

Accordingly, in the present invention, when the objects to be stirred are pulverized, the inner cylinder driving motor 1228 may be used to increase the torque while reducing the rotation speed of the inner cylinder 1210, so that the objects to be stirred, which are close to the inner side of the inner cylinder 1210, among the objects to be stirred which are rotated forward by the forward rotation of the pulverizing blade, are smoothly rotated backward, and when the objects to be stirred are dehydrated, the rotation speed of the inner cylinder 1210 may be increased as much as possible using the other inner cylinder driving motor 1228 than when the objects to be stirred are pulverized, thereby maximizing the dehydrating effect.

Specifically, one inner cylinder drive motor 1228 is the first motor M21 that provides rotational drive force to the inner cylinder 1210 when crushing the object to be stirred, and the other inner cylinder drive motor 1228 is the second motor M22 that provides rotational drive force in the opposite direction to the first motor M21 to the inner cylinder 1210 when dehydrating the object to be stirred.

At this time, the inner cylinder drive connection 1229 has a structure connected to the first motor M21 and the second motor M22, respectively, by a one-way bearing structure of the inner cylinder rotation shaft 1221.

That is, the first motor M21 and the inner cylinder rotation shaft 1221 are connected by one-way bearing structure, and the second motor M22 and the inner cylinder rotation shaft 1221 are connected by the other one-way bearing structure.

More specifically, the inner cylinder drive connection 1229 has the following structure.

A first driving gear 1229a is provided on the first motor shaft M21a of the first motor M21, and a first driven gear 1229c that is in gear engagement with the first driving gear 1229a or is connected to the first belt 1229b or a first chain is provided on the inner cylinder rotation shaft 1221.

That is, the inner cylinder rotation shaft 1221 is provided with a first driven gear 1229c drivingly connected to the first driving gear 1229a, and such a first driven gear 1229c may be directly geared with the first driving gear 1229a, or may be connected by a drive connection member such as the first belt 1229b or the first chain.

Further, although not shown in the drawings, in the drive connection structure between the first motor shaft M21a and the inner cylinder rotation shaft 1221, an additional intermediate connection shaft may be further provided, and the rotation speed and torque of the inner cylinder rotation shaft 1221 may be adjusted by an intermediate connection gear that is attached to such an intermediate connection shaft and is drive-connected with the first drive gear 1229a and the first driven gear 1229 c.

Further, a second driving gear 1229e is provided on the second motor shaft M22a of the second motor M22, and a second driven gear 1229g that is geared with the second driving gear 1229e or is connected to the second belt 1229f or a second chain is provided on the inner cylinder rotation shaft 1221.

That is, the inner cylinder rotation shaft 1221 is provided with a second driven gear 1229g drivingly connected to the second driving gear 1229e, and such a second driven gear 1229g may be directly geared with the second driving gear 1229e, or may be connected by a drive connection member such as a second belt 1229f or a second chain.

Further, although not shown in the drawings, in the drive connection structure between the second motor shaft M22a and the inner cylinder rotation shaft 1221, an additional intermediate connection shaft may be further provided, and the rotation speed and torque of the inner cylinder rotation shaft 1221 may be adjusted by an intermediate connection gear that is attached to such intermediate connection shaft and is drive-connected with the second drive gear 1229e and the second driven gear 1229 g.

Further, a first one-way bearing 1229d is mounted between the inner cylinder rotation shaft 1221 and the first driven gear 1229 c.

That is, the inner cylinder rotation shaft 1221 passes through the first driven gear 1229c, and the first one-way bearing 1229d is fixedly locked between the inner cylinder rotation shaft 1221 and the first driven gear 1229c, that is, the inner ring of the first one-way bearing 1229d is fixedly locked at the outer periphery of the inner cylinder rotation shaft 1221, and the outer ring is fixed inside the first driven gear 1229 c.

Such a first one-way bearing 1229d allows the first driven gear 1229c to provide the inner cylinder rotation shaft 1221 with a driving force in only one direction of the shaft rotation and not with a driving force in the opposite direction, and thus performs only a lock function of making the first driven gear 1229c and the inner cylinder rotation shaft 1221 rotatable about the shaft.

That is, when the first driven gear 1229c is axially rotated in one direction, the first one-way bearing 1229d allows the driving force to be transmitted from the first driven gear 1229c to the inner cylinder rotation shaft 1221, thereby causing the inner cylinder rotation shaft 1221 to be axially rotated in one direction in an interlocking manner, and when the inner cylinder rotation shaft 1221 is rotated in the opposite direction, the first one-way bearing 1229d allows the driving force of the inner cylinder rotation shaft 1221 not to be transmitted to the first driven gear 1229c, thereby causing the first driven gear 1229c to be axially rotated in the opposite direction in an interlocking manner.

Meanwhile, a second one-way bearing 1229h is installed between the inner cylinder rotation shaft 1221 and the second driven gear 1229 g.

That is, the inner cylinder rotation shaft 1221 passes through the second driven gear 1229g, and the second one-way bearing 1229h is fixedly locked between the inner cylinder rotation shaft 1221 and the second driven gear 1229g, that is, the inner ring of the second one-way bearing 1229d is fixedly locked at the outer periphery of the inner cylinder rotation shaft 1221, and the outer ring is fixedly locked inside the second driven gear 1229 g.

Such a second one-way bearing 1229h allows the second driven gear 1229g to provide the inner cylinder rotation shaft 1221 with a driving force in only one direction of the axial rotation and not with a driving force in the opposite direction, and thus performs only a lock function of making the second driven gear 1229g and the inner cylinder rotation shaft 1221 axially rotatable.

That is, when the second driven gear 1229g is axially rotated in the other direction, the second one-way bearing 1229h allows the driving force to be transmitted from the second driven gear 1229g to the inner cylinder rotation shaft 1221 to thereby axially rotate the inner cylinder rotation shaft 1221 in the other direction in an interlocking manner, and when the inner cylinder rotation shaft 1221 is rotated in the opposite direction, the second one-way bearing 1229d allows the driving force of the inner cylinder rotation shaft 1221 not to be transmitted to the second driven gear 1229g to thereby axially rotate the second driven gear 1229g in the opposite direction in an interlocking manner.

Wherein the first one-way bearing 1229d and the second one-way bearing 1229h have a structure that transmits a driving force in the rotational directions opposite to each other.

Thus, when only the first motor M21 is operated, even if the first driven gear 1229c is rotated by the first drive gear 1229a, the second driven gear 1229g is not rotated and does not ultimately affect the second motor M22, and when only the second motor M22 is operated, even if the second driven gear 1229g is rotated by the second drive gear 1229e, the first driven gear 1229c is not rotated and does not ultimately affect the first motor M21.

On the other hand, the first motor M21, the second motor M22, and the inner cylinder drive connection 1229 may be configured such that the rotational speed of the inner cylinder 1210 when dehydrating the object to be stirred is 5 times or more faster than the rotational speed of the inner cylinder 1210 when pulverizing the object to be stirred.

As a specific example, the first motor M21, the second motor M22, and the inner cylinder driving connection 1229 are configured such that the rotation speed of the inner cylinder 1210 when crushing the object to be stirred is 50rpm to 350rpm, and the rotation speed of the inner cylinder 1210 when dehydrating the object to be stirred is 1500rpm to 3500 rpm.

According to the structure of the first motor M21, the second motor M22, and the inner cylinder driving connection 1229, in the present invention, when the object to be stirred is crushed, the rotation speed of the inner cylinder 1210 is reduced to maximize the torque, and when the object to be stirred is dehydrated, the rotation speed of the inner cylinder 1210 is increased to maximize the dehydration effect.

In addition, as shown in fig. 17 and 22, the blender according to the present invention may further include a vacuum unit 1400, the vacuum unit 1400 being configured to form a vacuum inside the inner cylinder 1210.

The vacuum unit 1400 may include a suction tube and a vacuum driving part 1410.

The suction pipe is formed inside the mixer cover 1140, and when the mixer cover 1140 covers the outer cylinder 1110, the suction pipe may have a structure communicating with the outer cylinder 1110 and also communicating with the inner cylinder 1210 inside the outer cylinder 1110.

Further, the vacuum driving part 1410 is connected to a suction pipe, and may be composed of a vacuum motor and a vacuum pump.

The blender according to the present invention can perform the blending operation including the pulverizing operation and the dehydrating operation under vacuum by the vacuum unit 1400 configured as described above, so that the object to be blended containing fruits or vegetables, etc. can perform the blending operation in a state of not being oxidized, and thus, a liquid (juice) fresh and having no nutrient components destroyed can be obtained.

As described above, the mixer according to the present invention may have a structure in which the gear engagement structure of the inner cylinder driving connection part 1229 is variable, so that the inner cylinder 1210 may have different rotation speeds when the mixing target object is crushed and when the mixing target object is dehydrated, or may have a structure in which a plurality of inner cylinder driving motors 1228 are provided, so that the torque may be increased while the reverse rotation speed of the inner cylinder 1210 is reduced when the mixing target object is crushed, so that the mixing target object located closer to the inner side of the inner cylinder 1210 is smoothly reversed among the mixing target objects rotated forward by the forward rotation of the crushing blade, and the rotation speed of the inner cylinder 1210 may be increased as much as possible when the mixing target object is dehydrated, compared to when the mixing target object is crushed, to maximize the dehydration effect.

FIG. 25 is a longitudinal sectional view showing a blender according to still another embodiment of the present invention, and FIG. 26 is a view showing an inner cylinder, an inner cylinder cover, and an inner cylinder rotation axis of the blender of FIG. 25.

Referring to the drawings, a blender according to the present invention includes a blender body 2100 and an inner barrel unit 2200.

The mixer body 2100 may include an outer cylinder 2110, a grinding blade 2120, and a blade driving portion 2130.

Specifically, the inner cylinder 2210 of the inner cylinder unit 2200 is provided inside the outer cylinder 2110, and the outer cylinder 2110 has an upper opening structure with an open upper portion and is configured to be opened and closed by the agitator cover 2140.

Meanwhile, the outer tub 2110 may be seated on a tub support housing 2300 to be described later, and the top thereof is covered by an outer tub cover 2110a before being covered by a mixer cover 2140.

Also, the crushing blade 2120 is provided in the inner cylinder 2210, and performs a function of crushing the agitation object in the inner cylinder 2210 while rotating. In this case, the object to be kneaded is food that can be pulverized by the operation of the mixer.

Meanwhile, the blade driving part 2130 is provided to rotate the crushing blade 2120.

In addition, the outer cylinder 2110 is supported by a cylinder support housing 2300, and the cylinder support housing 2300 is integrally provided with the cylinder support housing 2300 as shown in the drawingAnd (4) shape.

The cartridge support housing 2300 is composed of a bottom housing portion 2310 at the lower side of the outer cartridge 2110 and a side housing portion 2320, the side housing portion 1320 extending upward from the bottom housing portion 1310 and connected to the agitator cover 2140.

Specifically, in the cartridge support housing 2300, an upper surface of a bottom housing portion 2310 disposed in a lateral direction is used to receive an outer cartridge 2110, and a top end of a side housing portion 2320 extending upward from the bottom housing portion 2310 and disposed in a longitudinal direction is hinged to a mixer cover 2140 rotatable in an up-and-down direction.

Such a drum support housing 2300 or a mixer cover 2140 is internally provided with a blade driving part 2130 and an inner drum driving part 2220 to be described later, when an outer drum 2110 internally provided with an inner drum 2210 is seated, the pulverizing blades 2120 and the blade driving part 2130 are connected to each other to transmit a driving force of the blade driving part 2130 to the pulverizing blades 2120 located inside the inner drum 2210, and the inner drum 2210 and the inner drum driving part 2220 are connected to each other to transmit a driving force of the inner drum driving part 2220 to the inner drum 2210 provided inside the outer drum 2110.

In addition, the inner cylinder unit 2200 includes an inner cylinder 2210 and an inner cylinder driving part 2220.

Wherein the inner cylinder 2210 is disposed inside the outer cylinder 2110, and a top of the inner cylinder 2210 may be covered by an inner cylinder cover 2210a before being inserted into the cylinder support housing 2300.

Meanwhile, at least one protrusion 2211 is formed on the inner side surface of the inner cylinder 2210 to block the object to be stirred, which is pulverized and rotationally flowed by the pulverizing blade 2120.

In a state where the object to be stirred is accommodated in the inner cylinder 2210, when the crushing blade 2120 is rotated, if the object to be stirred collides with the projection 2211 formed on the inner side surface of the inner cylinder 2210 in an inverted state, turbulence of the object to be stirred generated thereby is increased, thereby enhancing a crushing effect of the object to be stirred.

Further, when the crushing blade 2120 and the inner cylinder 2210 rotate in opposite directions, the projection 2211 may have a spiral protruded line shape guiding a downward spiral flow of the object to be stirred, so that the object to be stirred rotates in a direction opposite to the rotation direction of the crushing blade 2120 and flows downward.

Specifically, the object to be stirred is pushed radially by the rotational centrifugal force of the crushing blades 2120 and flows upward, but since the spiral protrusion 2211 for guiding the downward spiral flow of the object to be stirred is formed on the inner side surface of the inner cylinder 2210, the object to be stirred can be made to flow toward the crushing blades 2120 provided on the lower side of the inside of the inner cylinder 2210, thereby further improving the crushing effect of the mixer.

Meanwhile, the present invention may further include a controller (not shown) electrically connected to the blade driving part 2130 and the inner cylinder driving part 2220 to control the blade driving part 2130 and the inner cylinder driving part 2220.

In order to break the equilibrium state of the object to be stirred, such a controller may control the inner cylinder driving part 2220 to stir the object to be stirred while repeating a mode of rotating and stopping the inner cylinder 2210 in a direction opposite to the rotation direction of the crushing blade 2120.

That is, in order to make the inner cylinder 2210 flow irregularly with respect to the object to be stirred, the controller may control the inner cylinder driving motor M2 of the inner cylinder driving portion 2220 so as to repeat the operation of rotating and stopping the inner cylinder 2210 in the direction opposite to the crushing blade 2120.

On the other hand, the inner cylinder 2210 is configured such that a lower portion is rotatably installed at the blender body 2100, and an upper portion is connected to the inner cylinder driving part 2220, thereby providing a rotational driving force of the inner cylinder driving part 2220 to the upper portion of the inner cylinder 2210.

That is, the inner cylinder 2210 is rotated by a rotation driving force from the inner cylinder driving part 2220 through the upper part, that is, the inner cylinder driving part 2220 rotates the upper part, and at this time, the lower part of the inner cylinder 2210 is rotatably mounted to the mixer body 2100 with a bearing structure so as to be rotated together with the rotation of the upper part.

The structure for providing the rotational driving force from the inner cylinder driving part 2220 through the upper part of the inner cylinder 2210 as described above is specifically as follows.

An inner cylinder cover 2230 of the inner cylinder 2210 unit covers the inner cylinder 2210 and has a structure key-locked with the inner cylinder 2210.

Wherein the inner cylinder driving part 2220 is connected to the inner cylinder cover 2230 to rotate the inner cylinder cover 2230 and to rotate the inner cylinder 2210 in conjunction therewith.

As an example, the key locking structure of the inner cylinder cover 2230 and the inner cylinder 2210 is shown in the drawings, a plurality of key grooves 2210a formed in a length direction are provided at the top end of the inner cylinder 2210 with a space therebetween, and key protrusions 2230a may be formed at the edge of the inner cylinder cover 2230 at positions corresponding to the plurality of key grooves 2210a, whereby, when the inner cylinder cover 2230 is lowered to the upper portion of the inner cylinder 2210 to be locked, each of the key protrusions 2230a is inserted into the plurality of key grooves 2210a, respectively, so that the inner cylinder 2210 may be rotated in conjunction with the rotation of the inner cylinder cover 2230.

Further, the key locking structure of the inner cylinder cover 2230 and the inner cylinder 2210 is not limited to the structure shown in the present invention, and may of course be any key locking structure that can rotate the inner cylinder 2210 by the rotation of the inner cylinder cover 2230.

In addition, the inner cylinder driving part 2220 may include an inner cylinder driving motor M2 and an inner cylinder rotation shaft 2221.

The inner cylinder driving motor M2 is provided in the mixer main body 2100, and the inner cylinder rotation shaft 2221 is keyed to the inner cylinder cover 2230 so that the inner cylinder cover 2230 rotates in conjunction with the rotation.

Specifically, the upper surface of the cylinder cover 2230 may be formed with an assembly groove 2230b having a concave-convex structure at an inner side, and the lower end of the inner cylinder rotation shaft 2221 may be formed with an assembly end 2221a having a concave-convex structure corresponding to the concave-convex structure of the assembly groove 2230b, the assembly end 2221a being inserted into the assembly groove 2230b of the inner cylinder cover 2230 for key locking.

In addition, the inner cylinder driving part 2220 may further include a shaft connecting member 2222, and such a shaft connecting member 2222 connects the motor shaft of the inner cylinder driving motor M2 with the inner cylinder rotation shaft 2221, thereby performing a function of transmitting a rotational driving force from the motor shaft to the inner cylinder rotation shaft 2221.

Such a shaft connection member 2222 may be constituted by at least one of a gear connection shaft and a connection belt. At this time, at least one of the gear connecting shaft and the connecting belt may be disposed, respectively.

As one example, as shown in fig. 25, the shaft connecting member 2222 may include a first gear connecting shaft 2222a and a second gear connecting shaft 2222b, a left end of the first gear connecting shaft 2222a is gear-connected to a top end of the inner cylinder rotating shaft 2221, and an upper end of the second gear connecting shaft 2222b is gear-connected to a right end of the first gear connecting shaft 2222a and a lower end thereof is gear-connected to a motor shaft of the inner cylinder driving motor M2.

At this time, the upper end of the inner cylinder rotation shaft 2221, the left and right ends of the first gear connecting shaft 2222a, and the upper and lower ends of the second gear connecting shaft 2222b may be formed with bevel gears for a gear connection mechanism, respectively.

As another example, the shaft connecting member 2222 may include a first connecting band 2222a ', an intermediate connecting shaft 2222b ', and a second connecting band 2222c ' shown in fig. 27, instead of the first and second gear connecting shafts 2222a and 2222b shown in fig. 25. As a matter of course, wherein the upper ends of the inner cylinder rotation shaft 2221 and the inner cylinder driving motor M2 and the upper and lower ends of the intermediate connecting shaft 2222b ' may be formed with timing gears so that the first connecting belt 2222a ' and the second connecting belt 2222c ' are rotated in a wound state to transmit driving force, at this time, the first connecting belt 2222a ' and the second connecting belt 2222c ' may utilize timing belts. For reference, since the functions and structures of elements having the same reference numerals in fig. 27 and 25 are the same, the description thereof will be omitted.

On the other hand, the outer cylinder 2110 of the mixer main body 2100 is opened and closed by the outer cylinder cover 2110a, and the inner cylinder rotation shaft 2221 rotates separately from the outer cylinder cover 2110a since it passes through the outer cylinder cover 2110 a.

At this time, the blade rotation shaft 2131 of the blade driving unit 2130 penetrates the bottom portions of the inner cylinder 2210 and the outer cylinder 2110, and the bottom portion of the inner cylinder 2210 is connected to the bottom portion of the outer cylinder 2110 or the blade rotation shaft 2131 through a bearing.

As an example, as shown in fig. 25 and 27, the bottom of the inner cylinder 2210 may be coupled to the bottom of the outer cylinder 2110 through a bearing 2B to form an idle rotation structure, and at this time, the bottom of the outer cylinder 2110 may be coupled to the blade rotation shaft 2131 through a bearing 2B.

Further, the inner cylinder driving motor M2 may be disposed on the upper, lower, or side surface of the inner cylinder 2210.

Specifically, the inner cylinder driving motor M2, which adopts a structure connected to the inner cylinder rotation shaft 2221 or the shaft connecting member 2222, may be built in, as one example, the agitator cover 2140 disposed on the upper side of the inner cylinder 2210, as another example, the bottom housing portion 2310 of the cylinder support housing 2300 disposed on the lower side of the inner cylinder 2210, and as yet another example, the side housing portion 2320 of the cylinder support housing 2300 disposed on the side of the inner cylinder 2210.

On the other hand, the present invention may further include a vacuum unit 2400, and such a vacuum unit 2400 may include a vacuum driving part 2410 and a suction pipe 2420.

The vacuum driving part 2410 is composed of a vacuum motor and a vacuum pump for supplying a pumping force, and may be built in the side housing part 2320, and one side of the suction pipe 2420 is connected to the vacuum driving part 2410, and the other side thereof is communicated with the inner cylinder 2210 through the agitator cover 2140.

At this time, the inner cylinder rotation shaft 2221 and the inner cylinder cover 2230 are formed at central portions thereof with suction holes (not shown), respectively, and although a connection structure of the suction pipes 2420 is not shown in the drawing, the suction pipes 2420 may be rotatably connected to an upper end of the inner cylinder rotation shaft 2221, and the air in the inner cylinder is sucked through the respective suction holes of the inner cylinder rotation shaft 2221 and the inner cylinder cover 2230, so that the inside of the inner cylinder 2210 is brought into a vacuum state. Such a vacuum operation should of course be performed before the rotation of the inner barrel 2210 and the crushing blades 2120.

As a result, the blender according to the present invention is configured such that the bottom of the inner cylinder 2210 is idly mounted in the blender body 2100, and the top of the inner cylinder 2210 is connected with the inner cylinder driving part 2220, so that the rotational driving force of the inner cylinder driving part 2220 is provided to the top, whereby it is possible to stably and smoothly rotate the inner cylinder 2210 independently of the pulverizing blades, and thereby to enhance the pulverizing performance of the object to be blended.