阅读说明：本技术 一种具有保护功能的和面装置 (Dough kneading device with protection function ) 是由 齐宽宽 于 2020-05-25 设计创作，主要内容包括：本发明涉及一种具有保护功能的和面装置,包括和面桶、盖板、保护壳、连接套、搅拌机构和保护机构,所述和面桶顶部开口,所述盖板设置在开口处,所述连接套设置在盖板中部,所述保护壳通过连接套与盖板连接,所述保护机构包括固定组件和限位组件,该具有保护功能的和面装置,通过搅拌机构对面粉进行搅拌,实现和面,通过固定组件实现盖板和和面桶的密封,通过限位组件避免盖板打开时搅拌杆的继续旋转,保护了操作人员的安全,与现有的保护机构相比,该保护机构通过固定组件和限位组件的联动,使得盖板一旦脱开,即可立即卡住驱动轴,提高了装置的灵敏度。(The invention relates to a dough kneading device with a protection function, which comprises a dough kneading barrel, a cover plate, a protective shell, a connecting sleeve, a stirring mechanism and a protection mechanism, the top of the dough kneading barrel is provided with an opening, the cover plate is arranged at the opening, the connecting sleeve is arranged in the middle of the cover plate, the protective shell is connected with the cover plate through a connecting sleeve, the protective mechanism comprises a fixing component and a limiting component, the dough kneading device with the protection function realizes dough kneading by stirring flour through the stirring mechanism, the sealing of the cover plate and the dough mixing barrel is realized through the fixing component, the continuous rotation of the stirring rod when the cover plate is opened is avoided through the limiting component, the safety of operators is protected, compared with the existing protection mechanism, this protection machanism is through the linkage of fixed subassembly and spacing subassembly for the apron is once disengaged, can block the drive shaft immediately, has improved the sensitivity of device.)

1. The dough kneading device with the protection function is characterized by comprising a dough kneading barrel (1), a cover plate (2), a protective shell (3), a connecting sleeve (4), a stirring mechanism and a protection mechanism, wherein the top of the dough kneading barrel (1) is provided with an opening, the cover plate (2) is arranged at the opening, the connecting sleeve (4) is arranged in the middle of the cover plate (2), the protective shell (3) is connected with the cover plate (2) through the connecting sleeve (4), and the protection mechanism comprises a fixing component and a limiting component;

the stirring mechanism comprises a driving assembly and two stirring assemblies, the driving assembly comprises a motor (5) and a driving shaft (6), the motor (5) is vertically arranged in the protective shell (3) downwards, the driving shaft (6) is installed on the motor (5), the driving shaft (6) is positioned in the connecting sleeve (4), the stirring assembly comprises a rotating shaft (7) and two stirring rods (8), one end of the rotating shaft (7) is connected with one end, far away from the motor (5), of the driving shaft (6), the other end of the rotating shaft (7) extends into the dough kneading barrel (1), the rotating shaft (7) and the driving shaft (6) are coaxially arranged, and the two stirring rods (8) are respectively arranged on two sides of the rotating shaft (7);

the dough kneading barrel is characterized in that the number of the fixed assemblies is two, the two fixed assemblies are respectively arranged at two ends of the cover plate (2), each fixed assembly comprises a fixed unit and a positioning unit, each fixed unit comprises a bearing seat (9), a rotating rod (10), a threaded rod (11) and a threaded pipe (12), the bearing seats (9) are arranged on the cover plate (2), the rotating rods (10) penetrate through the bearing seats (9), the threaded rods (11) are arranged at one ends, far away from the motor (5), of the rotating rods (10), the threaded pipes (12) are arranged on one side of the dough kneading barrel (1), the threaded rods (11) penetrate through the threaded pipes (12), and the threaded rods (11) are in threaded connection with the threaded pipes (12);

the positioning unit comprises a lantern ring (13), clamping blocks (14), fixing blocks (15), clamping rods (16), a stop block (17) and a first spring (18), the lantern ring (13) is sleeved on the rotating rod (10), the lantern ring (13) is fixedly connected with the rotating rod (10), the lantern ring (13) is positioned above the cover plate (2), the clamping blocks (14) are multiple, each clamping block (14) is uniformly arranged on an outer ring of the lantern ring (13), the fixing blocks (15) are arranged on the cover plate (2), the clamping rods (16) penetrate through the fixing blocks (15), one end of each clamping rod (16) is abutted to two adjacent clamping blocks (14), the stop block (17) is positioned at one end, far away from the clamping blocks (14), of each clamping rod (16), the first spring (18) is positioned between the fixing blocks (15) and the stop block (17), the first spring (18) is sleeved on the clamping rods (16), one end of the first spring (18) is connected with the fixed block (15), and the other end of the first spring (18) is connected with the stop block (17);

the limiting component comprises two limiting units and a winding unit, the two limiting units are respectively arranged on two sides of the driving shaft (6), each limiting unit comprises a limiting block (19), a first limiting rod (20), a second limiting rod (21), a sliding block (22) and a second spring (23), the limiting blocks (19) are arranged on the inner wall of the connecting sleeve (4), the sliding block (22) is arranged under the limiting blocks (19), sliding grooves are formed in the inner wall of the connecting sleeve (4), the sliding block (22) is connected with the sliding grooves in a sliding mode, the first limiting rod (20) and the second limiting rod (21) are arranged between the sliding block (22) and the limiting blocks (19), one end of the first limiting rod (20) is hinged to the limiting blocks (19), one end of the second limiting rod (21) is hinged to the sliding block (22), one end of the first limiting rod (20) far away from the limiting blocks (19) is far away from the sliding block (21) and the second limiting rod (21) 22) One end of the second spring (23) is hinged to the limiting block (19), the second spring (23) is located between the limiting block (19) and the sliding block (22), one end of the second spring (23) is connected with the limiting block (19), the other end of the second spring (23) is connected with the sliding block (22), a clamping groove is formed in the driving shaft (6), and the hinged position of the first limiting rod (20) and the second limiting rod (21) is located in the clamping groove;

the winding unit comprises a coil (24), a first pull rope (25) and a second pull rope (26), two positioning blocks (27) are arranged on the outer wall of the connecting sleeve (4), the two positioning blocks (27) are respectively arranged on two sides of the driving shaft (6), the two positioning blocks (27) are arranged right opposite to each other, the positioning blocks (27) and the first limiting rod (20) are positioned in the same plane, one end of the first pull rope (25) is connected with the hinge joint of the first limiting rod (20) and the second limiting rod (21) of one limiting unit, the other end of the first pull rope (25) penetrates through the two positioning blocks (27) to be connected with the hinge joint of the first limiting rod (20) and the second limiting rod (21) of the other limiting unit, the coil (24) is arranged on one rotating rod (10), one end of the second pull rope (26) is wound on the coil (24), the other end of the second pull rope (26) is connected with the middle part of the first pull rope (25).

2. The dough kneading device with the protection function according to claim 1, wherein the stopper (19) is provided with a first magnet (28), the driving shaft (6) is provided with a second magnet (29), the first magnet (28) and the second magnet (29) are arranged in a facing manner, and the first magnet (28) and the second magnet (29) attract each other.

3. Dough kneading device with protection function according to claim 1, characterized in that the cover plate (2), the connecting sleeve (4) and the protective casing (3) are integrally formed.

4. The dough kneading device with the protection function according to claim 1, wherein the fixing block (15) is provided with a bolt (30), the clamping rod (16) is provided with a through hole, and the bolt (30) passes through the through hole.

5. The dough kneading device with the protection function according to claim 1, wherein the slider (22) has a dovetail-shaped cross section, and the sliding groove is a dovetail groove.

6. Dough mixing device with protection function according to claim 1, characterized in that the stirring rod (8) is U-shaped.

7. Protective dough mixing device according to claim 1, wherein said first pull cord (25) is an elastic cord.

8. Protective dough mixing device according to claim 1, characterized in that said first spring (18) is in tension.

9. Protective dough mixing device according to claim 1, characterised in that said second spring (23) is in tension.

10. The dough kneading device with the protection function as claimed in claim 1, wherein a torsion spring is provided at the hinge joint of the first limiting rod (20) and the second limiting rod (21).

Technical Field

The invention relates to a dough kneading device with a protection function.

Background

The dough kneading is to add water and additives into flour, and to ensure that the gliadin and glutenin gradually absorb water and expand and are bonded with each other through proper stirring for a certain time to form a continuous film-shaped matrix which is mutually crossed and combined to form a three-dimensional gluten network structure with certain elasticity, extensibility, viscosity and plasticity, so that the wheat flour can be further utilized by people.

The existing dough kneading method is generally carried out manually, has low efficiency and is particularly not suitable for producing flour products in batches. For mass production, dough kneading is generally performed by using a dough kneading device, and the existing dough kneading devices are classified into horizontal type, vertical type and the like.

The motor is generally adopted as the driving source to the device of current kneading dough, after the kneading dough was ended, the out-of-service motor, and the motor can continue to rotate a period because under the inertial action to make the puddler also can continue to rotate a period, at this moment, operating personnel when taking out the raw materials, can take place the contact with the puddler, cause the fish tail, the emergence of the condition such as fracture even is unfavorable for operating personnel's safety.

Disclosure of Invention

The technical problem to be solved by the invention is as follows: in order to overcome the defects of the prior art, the dough kneading device with the protection function is provided.

The technical scheme adopted by the invention for solving the technical problems is as follows: a dough kneading device with a protection function comprises a dough kneading barrel, a cover plate, a protective shell, a connecting sleeve, a stirring mechanism and a protection mechanism, wherein the top of the dough kneading barrel is provided with an opening, the cover plate is arranged at the opening, the connecting sleeve is arranged in the middle of the cover plate, the protective shell is connected with the cover plate through the connecting sleeve, and the protection mechanism comprises a fixing component and a limiting component;

the stirring mechanism comprises a driving assembly and two stirring rods, the driving assembly comprises a motor and a driving shaft, the motor is vertically arranged in the protective shell downwards, the driving shaft is arranged on the motor, the driving shaft is positioned in the connecting sleeve, the stirring assembly comprises a rotating shaft and two stirring rods, one end of the rotating shaft is connected with one end, away from the motor, of the driving shaft, the other end of the rotating shaft extends into the dough kneading barrel, the rotating shaft and the driving shaft are coaxially arranged, and the two stirring rods are respectively arranged on two sides of the rotating shaft;

the two fixing assemblies are respectively arranged at two ends of the cover plate and comprise a fixing unit and a positioning unit, the fixing unit comprises a bearing seat, a rotating rod, a threaded rod and a threaded pipe, the bearing seat is arranged on the cover plate, the rotating rod penetrates through the bearing seat, the threaded rod is arranged at one end, away from the motor, of the rotating rod, the threaded pipe is arranged on one side of the dough kneading barrel, the threaded rod penetrates through the threaded pipe, and the threaded rod is in threaded connection with the threaded pipe;

the positioning unit comprises a lantern ring, clamping blocks, a fixing block, a clamping rod, a stop block and a first spring, the lantern ring is sleeved on the rotating rod, the lantern ring is fixedly connected with the rotating rod, the lantern ring is positioned above the cover plate, the clamping blocks are provided with a plurality of outer rings, each clamping block is uniformly arranged on the outer ring of the lantern ring, the fixing block is arranged on the cover plate, the clamping rod penetrates through the fixing block, one end of the clamping rod is abutted against two adjacent clamping blocks, the stop block is positioned at one end, far away from the clamping blocks, of the clamping rod, the first spring is positioned between the fixing block and the stop block, the first spring is sleeved on the clamping rod, one end of the first spring is connected with the fixing block, and the other end;

the limiting assembly comprises two limiting units and a winding unit, the two limiting units are respectively arranged at two sides of the driving shaft, each limiting unit comprises a limiting block, a first limiting rod, a second limiting rod, a sliding block and a second spring, the limiting blocks are arranged on the inner wall of the connecting sleeve, the sliding blocks are arranged under the limiting blocks, sliding grooves are formed in the inner wall of the connecting sleeve, the sliding blocks are connected with the sliding grooves in a sliding mode, the first limiting rods and the second limiting rods are arranged between the sliding blocks and the limiting blocks, one end of each first limiting rod is hinged to the limiting block, one end of each second limiting rod is hinged to the sliding block, one end, far away from the limiting blocks, of each first limiting rod is hinged to one end, far away from the sliding blocks, of each second limiting rod, the second spring is located between the limiting blocks and the sliding blocks, and one end of each second spring is connected with the limiting, the other end of the second spring is connected with the sliding block, a clamping groove is formed in the driving shaft, and the hinged position of the first limiting rod and the second limiting rod is located in the clamping groove;

the winding unit comprises a coil, a first pull rope and a second pull rope, two positioning blocks are arranged on the outer wall of the connecting sleeve and are respectively arranged on two sides of the driving shaft, the two positioning blocks are arranged right opposite to each other, the positioning blocks and the first limiting rod are located in the same plane, one end of the first pull rope is connected with the hinged part of the first limiting rod and the second limiting rod of one limiting unit, the other end of the first pull rope penetrates through the hinged parts of the first limiting rod and the second limiting rod of the other limiting unit and is connected with the hinged part of the first limiting rod and the second limiting rod of the other limiting unit, the coil is arranged on one rotating rod, one end of the second pull rope is wound on the coil, and the other end of the second pull rope is connected with the middle part of the first.

In order to limit the driving shaft, a first magnet is arranged on the limiting block, a second magnet is arranged on the driving shaft, the first magnet and the second magnet are arranged oppositely, and the first magnet and the second magnet attract each other.

In order to make the device more firm, apron, adapter sleeve and protective housing integrated into one piece.

In order to fix the clamping rod, a bolt is arranged on the fixing block, a through hole is formed in the clamping rod, and the bolt penetrates through the through hole.

In order to better limit the sliding block, the cross section of the sliding block is in a dovetail shape, and the sliding groove is a dovetail groove.

In order to realize better stirring effect, the stirring rod is U-shaped.

In order to realize a better limiting effect, the first pull rope is an elastic rope.

In order to achieve a better limiting effect, the first spring is in a stretching state.

In order to make the slider return to the initial position better, the second spring is in a stretched state.

In order to enable the first limiting rod and the second limiting rod to better return to the initial positions, a torsion spring is arranged at the hinged position of the first limiting rod and the second limiting rod.

The flour kneading device with the protection function has the advantages that flour is stirred through the stirring mechanism to realize kneading, the fixing component is used for sealing the cover plate and the flour kneading barrel, the limiting component is used for preventing the stirring rod from continuously rotating when the cover plate is opened, the safety of operators is protected, compared with the existing protection mechanism, the protection mechanism enables the driving shaft to be immediately clamped once the cover plate is disengaged through the linkage of the fixing component and the limiting component, and the sensitivity of the device is improved.

Drawings

The invention is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural diagram of a dough kneading device with a protection function according to the present invention;

FIG. 2 is a schematic structural diagram of a positioning unit of the dough kneading device with a protection function according to the present invention;

FIG. 3 is a schematic structural diagram of a limiting unit of the dough kneading device with a protection function of the present invention;

FIG. 4 is a schematic structural diagram of a limiting unit of the dough kneading device with a protection function of the present invention;

FIG. 5 is a schematic structural diagram of a limiting unit of the dough kneading device with a protection function of the present invention;

in the figure: 1. the dough kneading barrel comprises a dough kneading barrel body, a cover plate, a protective shell, a connecting sleeve, a motor, a driving shaft, a rotating shaft, a stirring rod, a bearing seat, a rotating rod, a threaded pipe, a sleeve, a clamping block, a fixing block, a clamping rod, a stop block, a spring, a limiting block, a limiting rod, a coil, a first pull rope, a second pull rope, a positioning block, a magnet and a bolt, wherein the rotating rod, the threaded pipe, the lantern ring, the clamping block, the fixing block, the clamping rod, the stop block, the spring, the stop block.

Detailed Description

The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.

As shown in fig. 1, a dough kneading device with a protection function comprises a dough kneading barrel 1, a cover plate 2, a protective shell 3, a connecting sleeve 4, a stirring mechanism and a protection mechanism, wherein the top of the dough kneading barrel 1 is provided with an opening, the cover plate 2 is arranged at the opening, the connecting sleeve 4 is arranged in the middle of the cover plate 2, the protective shell 3 is connected with the cover plate 2 through the connecting sleeve 4, and the protection mechanism comprises a fixing component and a limiting component;

apron 2, adapter sleeve 4 and protective housing 3 integrated into one piece here, during the use, pour water and flour into in kneading dough bucket 1 according to certain proportion, then cover 2 lid on kneading dough bucket 1, make apron 2 sealed with kneading dough bucket 1 through protection mechanism, stir through rabbling mechanism, realize kneading dough.

In order to make the device more firm, the cover plate 2, the connecting sleeve 4 and the protective shell 3 are integrally formed.

As shown in fig. 1, the stirring mechanism includes a driving assembly and a stirring assembly, the driving assembly includes a motor 5 and a driving shaft 6, the motor 5 is vertically arranged downward in the protective casing 3, the driving shaft 6 is mounted on the motor 5, the driving shaft 6 is located in the connecting sleeve 4, the stirring assembly includes a rotating shaft 7 and two stirring rods 8, one end of the rotating shaft 7 is connected with one end of the driving shaft 6 far away from the motor 5, the other end of the rotating shaft 7 extends into the dough kneading barrel 1, the rotating shaft 7 and the driving shaft 6 are coaxially arranged, the number of the stirring rods 8 is two, and the two stirring rods 8 are respectively arranged at two sides of the rotating shaft 7;

when dough kneading is needed, the motor 5 is operated, the motor 5 drives the driving shaft 6 to rotate, the driving shaft 6 drives the rotating shaft 7 to rotate, the rotating shaft 7 drives the two stirring rods 8 to rotate, and the flour is stirred, so that dough kneading is realized.

In order to achieve a better stirring effect, the stirring rod 8 is U-shaped.

As shown in fig. 2, the number of the fixing assemblies is two, the two fixing assemblies are respectively arranged at two ends of the cover plate 2, the fixing assemblies comprise a fixing unit and a positioning unit, the fixing unit comprises a bearing seat 9, a rotating rod 10, a threaded rod 11 and a threaded pipe 12, the bearing seat 9 is arranged on the cover plate 2, the rotating rod 10 passes through the bearing seat 9, the threaded rod 11 is arranged at one end of the rotating rod 10 far away from the motor 5, the threaded pipe 12 is arranged at one side of the dough kneading barrel 1, the threaded rod 11 passes through the threaded pipe 12, and the threaded rod 11 is in threaded connection with the threaded pipe 12;

when the cover plate 2 needs to be tightly covered, two threaded rods 11 are aligned to two threaded pipes 12, then the cover plate 2 is pressed downwards, the threaded rods 11 rotate downwards along the threaded direction of the threaded pipes 12, the threaded rods 11 drive the rotating rods 10 to rotate, and the rotating rods 10 can rotate in the bearing seats 9 due to the fact that the bearing seats 9 are arranged on the cover plate 2.

As shown in fig. 2, the positioning unit includes a collar 13, a plurality of clamping blocks 14, a fixing block 15, a clamping rod 16, a plurality of clamping blocks 17 and a first spring 18, the collar 13 is sleeved on the rotating rod 10, the collar 13 is fixedly connected with the rotating rod 10, the collar 13 is located above the cover plate 2, the clamping blocks 14 are provided with a plurality of clamping blocks 14, each clamping block 14 is uniformly arranged on an outer collar of the collar 13, the fixing block 15 is arranged on the cover plate 2, the clamping rod 16 penetrates through the fixing block 15, one end of the clamping rod 16 abuts against two adjacent clamping blocks 14, the clamping block 17 is located at one end of the clamping rod 16 far away from the clamping block 14, the first spring 18 is located between the fixing block 15 and the clamping block 17, the first spring 18 is sleeved on the clamping rod 16, one end of the first spring 18 is connected with the fixing block 15, and the other end of;

the bull stick 10 is rotatory, the drive lantern ring 13 is rotatory, sleeve pipe drive fixture block 14 is rotatory, when apron 2 is sealed with kneading dough bucket 1, first spring 18 is in tensile state this moment, the restoring force of first spring 18 produces the pulling force to dog 17, dog 17 produces thrust to bull stick 16, at this moment unscrew bolt 30, bull stick 16 does not receive stopping of bolt 30, will remove, make the pull rod card between two adjacent fixture blocks 14, thereby make fixture block 14 unable rotatory, thereby make bull stick 10 unable rotation, bull stick 10 makes threaded rod 11 unable rotation, thereby make apron 2 and kneading dough bucket 1 keep encapsulated situation, then screw up bolt 30, fix bull stick 16.

In order to fix the clamping rod 16, a bolt 30 is arranged on the fixing block 15, a through hole is arranged on the clamping rod 16, and the bolt 30 penetrates through the through hole.

For a better limiting effect, the first spring 18 is in a stretched state.

As shown in fig. 3-5, the limiting assembly includes two limiting units and two winding units, the two limiting units are respectively disposed on two sides of the driving shaft 6, the limiting unit includes a limiting block 19, a first limiting rod 20, a second limiting rod 21, a sliding block 22 and a second spring 23, the limiting block 19 is disposed on an inner wall of the connecting sleeve 4, the sliding block 22 is disposed under the limiting block 19, a sliding groove is disposed on the inner wall of the connecting sleeve 4, the sliding block 22 is slidably connected with the sliding groove, the first limiting rod 20 and the second limiting rod 21 are both disposed between the sliding block 22 and the limiting block 19, one end of the first limiting rod 20 is hinged to the limiting block 19, one end of the second limiting rod 21 is hinged to the sliding block 22, one end of the first limiting rod 20 away from the limiting block 19 is hinged to one end of the second limiting rod 21 away from the sliding block 22, the second spring 23 is positioned between the limiting block 19 and the sliding block 22, one end of the second spring 23 is connected with the limiting block 19, the other end of the second spring 23 is connected with the sliding block 22, the driving shaft 6 is provided with a clamping groove, and the hinged part of the first limiting rod 20 and the second limiting rod 21 is positioned in the clamping groove;

as shown in fig. 3 to 5, the winding unit includes a coil 24, a first pull rope 25 and a second pull rope 26, two positioning blocks 27 are disposed on an outer wall of the connecting sleeve 4, the two positioning blocks 27 are disposed on two sides of the driving shaft 6, the two positioning blocks 27 are disposed opposite to each other, the positioning blocks 27 and the first limiting rod 20 are located in the same plane, one end of the first pull rope 25 is connected to a hinge of the first limiting rod 20 and the second limiting rod 21 of one of the limiting units, the other end of the first pull rope 25 passes through the two positioning blocks 27 and is connected to a hinge of the first limiting rod 20 and the second limiting rod 21 of the other limiting unit, the coil 24 is disposed on one of the rotating rods 10, one end of the second pull rope 26 is wound on the coil 24, and the other end of the second pull rope 26 is connected to a middle portion of the first pull rope 25.

When the threaded rod 11 is not inserted into the threaded pipe 12, the hinge joint of the first limiting rod 20 and the second limiting rod 21 is located in the slot on the driving shaft 6, the second spring 23 is always in a stretching state, the restoring force of the second spring 23 drives the sliding block 22 to move towards the limiting block 19, meanwhile, under the action of the torsion spring, the first limiting rod 20 and the second limiting rod 21 are enabled to be close to each other, the hinge joint of the first limiting rod 20 and the second limiting rod 21 is enabled to be always clamped in the slot, when the threaded rod 11 is inserted into the threaded pipe 12, the rotating rod 10 rotates, the wire coil is driven to rotate to enable the second pull rope 26 to be wound on the wire coil, the second pull rope 26 pulls the first pull rope 25, the first pull rope 25 pulls the first limiting rod 20 and the second limiting rod 21 to be opened, and therefore the hinge joint of the first limiting rod 20 and the second limiting rod 21 is enabled to be separated from the slot, when apron 2 and dough bucket 1 separation, threaded rod 11 antiport to make second stay cord 26 emit, under the effect of torsional spring and second spring 23, the articulated department of first gag lever post 20 and second gag lever post 21 again blocks in the draw-in groove, make drive shaft 6 stall, avoided apron 2 and dough bucket 1's accident to throw off, lead to puddler 8 to continue to rotate, realized the protection to operating personnel.

The first magnet 28 and the second magnet 29 have a certain limiting effect on the driving shaft 6, and the first magnet 28 and the second magnet 29 attract each other, so that when the driving shaft 6 stops rotating, the second magnet 29 on the driving shaft 6 and the first magnet 28 on the limiting block 19 keep a facing state, and therefore the hinged part of the first limiting rod 20 and the second limiting rod 21 can face the clamping groove on the driving shaft 6.

In order to limit the driving shaft 6, a first magnet 28 is arranged on the limiting block 19, a second magnet 29 is arranged on the driving shaft 6, the first magnet 28 and the second magnet 29 are arranged oppositely, and the first magnet 28 and the second magnet 29 are attracted.

In order to better limit the sliding block 22, the cross section of the sliding block 22 is dovetail-shaped, and the sliding groove is a dovetail groove.

In order to achieve a better limiting effect, the first pulling rope 25 is an elastic rope.

In order to better return the slider 22 to the initial position, said second spring 23 is in tension.

In order to enable the first limiting rod 20 and the second limiting rod 21 to return to the initial positions better, a torsion spring is arranged at the hinged position of the first limiting rod 20 and the second limiting rod 21.

The device passes through threaded rod 11 and inserts screwed pipe 12, realize fixing to bull stick 10 through the positioning unit, thereby make threaded rod 11 keep the stationary state, thereby realize apron 2 and dough mixing bucket 1 sealed fixed, when threaded rod 11 inserts screwed pipe 12 simultaneously, drive winding unit, make two spacing units open, shift out in the draw-in groove of drive shaft 6, it is rotatory to avoid first gag lever post 20 and second gag lever post 21 to influence drive shaft 6, after the dough mixing, upwards stimulate apron 2, threaded rod 11 will the antiport, shift out screwed pipe 12, thereby make the articulated department of first gag lever post 20 and second gag lever post 21 block once more in the draw-in groove, avoid drive shaft 6 to receive the continuation rotation under the inertial action, thereby make puddler 8 keep quiescent condition, operating personnel's safety has been guaranteed.

Compared with the prior art, this dough mixing device with protect function, stir flour through rabbling mechanism, realize dough mixing, realize apron 2 and dough mixing bucket 1 sealed through fixed subassembly, the continuation of puddler 8 is rotatory when avoiding apron 2 to open through spacing subassembly, operating personnel's safety has been protected, compare with current protection machanism, this protection machanism is through the linkage of fixed subassembly and spacing subassembly, make apron 2 in case throw off, can block drive shaft 6 immediately, the sensitivity of device has been improved.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.