阅读说明：本技术 一种塑料滴管模具下料装置及其控制方法 (Plastic dropper mold blanking device and control method thereof ) 是由 张江华 于 2021-09-14 设计创作，主要内容包括：本发明公开了一种模具,尤其涉及一种塑料滴管模具下料装置及其控制方法,包括定模板与动模板,动模板上设置下料口,下料口的形状与塑料滴管的形状相适配。切刀可伸入下料口内,对吹塑成型后的塑料滴管半成品进行切割,切刀的形状与塑料滴管的形状相适配,从而能够对塑料滴管半成品的飞边进行切割,提高生产效率。第一驱动机构驱动定模板的移动,第二驱动机构驱动切刀的移动,且在第一驱动机构上设置第一定位装置,在第二驱动机构上设置第二定位装置,能够保证第一驱动机构与第二驱动结构动作的精确性,从而保证切料的精确性。(The invention discloses a die, and particularly relates to a blanking device of a plastic dropper die and a control method of the blanking device. The cutter can stretch into the feed opening to cut the blow-molded semi-finished plastic dropper, and the shape of the cutter is matched with that of the plastic dropper, so that the flash of the semi-finished plastic dropper can be cut, and the production efficiency is improved. The first driving mechanism drives the fixed die plate to move, the second driving mechanism drives the cutter to move, the first positioning device is arranged on the first driving mechanism, the second positioning device is arranged on the second driving mechanism, the accuracy of the movement of the first driving mechanism and the second driving mechanism can be guaranteed, and therefore the accuracy of material cutting is guaranteed.)

1. The utility model provides a plastics burette mould unloader which characterized in that includes:

a fixed template (300);

the movable template (400) is provided with a feed opening (410);

the cutter (510) can extend into the feed opening (410) for cutting;

the first driving mechanism drives the movable template (400) and the fixed template (300) to be matched;

the second driving mechanism drives the cutter (510) to move;

the first driving mechanism is provided with a first positioning mechanism, the second driving mechanism is provided with a second positioning mechanism, the first positioning mechanism and the second positioning mechanism are connected with a controller, and the controller controls the first driving mechanism and the second driving mechanism to move.

2. The plastic burette mold blanking apparatus of claim 1, wherein said first drive mechanism comprises:

a first slide rail (610);

the fixed die holder (100) is fixed at one end of the first sliding rail (610), and the fixed die plate (300) is arranged on the fixed die holder (100);

the movable die holder (200) is movably arranged on the first sliding rail (610), and the movable die plate (400) is arranged on the movable die holder (200) to enable the movable die plate (400) to be opposite to the fixed die plate (300);

the first pushing mechanism (600) pushes the movable die holder (200) to move on the first sliding rail (610) and is controlled by the controller;

the buffer mechanism is arranged between the fixed die holder (100) and the movable die holder (200), and comprises a receiving part (320) arranged on the fixed die holder (100) and a buffer part (430) arranged on the movable die holder (200), wherein the receiving part (320) corresponds to the buffer part (430) in position.

3. A plastic dropper die blanking apparatus as in claim 2 wherein the receiving portion (320) comprises:

a receiving cavity (321) arranged on the side surface of the fixed template (300);

a fixing body (322) fixed to one side of the receiving cavity (321);

a movable body (323) movably disposed at the other side of the receiving cavity (321) and opposite to the fixed body (322);

one end of the buffer rod (324) is connected with the movable body (323), and the other end of the buffer rod penetrates through the side wall of the receiving cavity (321) and can extend and retract on the side wall of the receiving cavity (321) along with the movement of the movable body (323);

a first buffer spring (325) sleeved on the buffer rod (324), wherein one end of the first buffer spring is abutted against the sliding body, and the other end of the first buffer spring is abutted against the side wall of the receiving cavity (321);

the buffer portion (430) includes:

the fixed seat (436) is arranged on the side surface of the movable template (400) and corresponds to the receiving cavity (321);

the front end of the first buffer body (431) faces the receiving cavity (321), and the rear end of the first buffer body is connected with the fixed seat (436);

the front end of the second buffer body (432) faces the receiving cavity (321), the rear end of the second buffer body is provided with a first embedded groove (435), and the front end of the first buffer body (431) can be embedded into the first embedded groove (435);

the front end of the third buffer body (433) faces the receiving cavity (321), the rear end of the third buffer body is provided with a second embedded groove (434), and the front end of the second buffer body (432) can be embedded into the second embedded groove (434);

the fixed body (322) and the movable body (323) are both provided with inclined planes to enable the fixed body (322) and the movable body (323) to form a horn-shaped opening, the first buffer body (431), the second buffer body (432) and the third buffer body (433) are both truncated cone-shaped structures with front ends smaller than rear ends, and the first buffer body (431), the second buffer body (432) and the third buffer body (433) are the same in height and gradually increased in taper.

4. The blanking device for the plastic dropper mold as recited in claim 2, wherein the first positioning mechanism comprises:

and the pressure sensor (310) is arranged on the side surface of the fixed template (300) and is connected with the controller.

The supporting seat (444) is arranged on the side surface of the movable template (400) and corresponds to the position of the pressure sensor (310);

an elastic member (440) mounted on the support base (444);

a contact (445) mounted at an end of the elastic member (440);

the elastic piece (440) is composed of a guide rod (442), a telescopic rod (441) and a second buffer spring (443), the telescopic rod (441) is sleeved on the guide rod (442), the second buffer spring (443) is also sleeved on the guide rod (442) and one end of the second buffer spring abuts against the telescopic rod (441) and the other end of the second buffer spring abuts against the supporting seat (444), and the contact (445) is arranged at the end portion of the telescopic rod (441).

5. The plastic dropper die blanking apparatus of claim 4, wherein the second drive mechanism comprises:

the second slide rail (230) is arranged between the movable mould plate (400) and the movable mould base (200);

the cutting plate (500) is movably arranged on the second sliding rail (230), and the cutter (510) is arranged on the cutting plate (500);

the second pushing mechanism (220) pushes the material cutting plate (500) to move on the second sliding rail (230) and is controlled by the controller;

the movable die holder (200) is provided with an installation seat (210), and the second pushing mechanism (220) is installed on the installation seat (210).

6. The blanking device for a plastic dropper mold of claim 5, wherein the second positioning mechanism comprises:

the first travel switch (451) is arranged on one side, close to the movable die holder (200), of the second slide rail (230);

the second travel switch (452) is arranged on one side, close to the movable template (400), of the second slide rail (230);

when the cutter (510) cuts the material, the cutter plate (500) triggers the second travel switch (452), when the cutter (510) exits, the cutter plate (500) triggers the first travel switch (451), and the first travel switch (451) and the second travel switch (452) are both connected with the controller.

7. The blanking device of a plastic dropper mold according to claim 1, wherein the fixed mold plate (300) has a material pushing surface on a side facing the movable mold plate (400), and the edge of the blanking opening (410) on a side facing the fixed mold plate (300) has a plurality of positioning blocks (420) capable of abutting against the material pushing surface.

8. The control method of the blanking device of the plastic dropper die as in claim 6, comprising the following steps:

s1: before cutting, the fixed die plate (300) and the movable die plate (400) are not matched, the cutter (510) is also in a withdrawing state, at the moment, the cutter plate (500) triggers the first travel switch (451), the first travel switch (451) sends a signal to the controller, the controller controls the first pushing mechanism (600) to act according to the signal of the first travel switch (451), and the movable die holder (200) moves towards the fixed die holder (100);

s2: the movable die holder (200) moves towards the fixed die holder (100) to enable the movable die plate (400) and the fixed die plate (300) to be matched, at the moment, the contact (445) abuts against the pressure sensor (310), and the pressure sensor (310) transmits the current pressure value P1 to the controller;

s3: setting pressure values P2 and P2 as normal pressures when the movable die plate (400) and the fixed die plate (300) are matched,

if the P1 is not less than the P2, the movable die plate (400) and the fixed die plate (300) are judged to be normally matched, and the control unit controls the second pushing mechanism (220) to act;

if P1 is less than P2, judging that the movable mould plate (400) and the fixed mould plate (300) are not normally matched, controlling the first pushing mechanism (600) to retreat and giving an alarm;

s4: the second pushing mechanism (220) pushes the cutting plate (500) to enable the cutter (510) to extend into the feed opening (410) for cutting, at the moment, the cutting plate (500) triggers a second travel switch (452), and the second travel switch (452) sends a signal to the controller;

s5: the controller controls the first pushing mechanism (600) to retreat at first and then controls the second pushing mechanism (220) to retreat according to the signal of the second travel switch (452).

Technical Field

The invention belongs to the technical field of molds, and particularly relates to a blanking device of a plastic dropper mold and a control method of the blanking device.

Background

The plastic mould is a tool which is matched with a plastic forming machine in the plastic processing industry and gives a complete configuration and an accurate size to a plastic product; because of the variety and processing method of plastic, and the structure of plastic molding machines and plastic products are various, the variety and structure of plastic molds are also various.

The Chinese patent application No. 201210302579.8 discloses a blowing mold of a Pasteur straw, wherein the mold is provided with an air inlet cavity and a straw cavity, a blank cutting opening and a residual material groove are arranged around the cavity, a small suction head part of the straw cavity is communicated with the air inlet cavity, a blade is inserted at the joint of the small suction head part of the straw cavity and the air inlet cavity, and the blade is driven by a driving mechanism arranged on the mold to enter and exit the joint of the small suction head part of the straw cavity and the air inlet cavity. According to the technical scheme, the connecting part of the suction pipe and the air port part is directly cut off by the mold during blow molding and demolding, and the suction pipe is torn off from a semi-finished product of the Pasteur suction pipe only by manpower.

In the above-mentioned mould, just cut off the semi-manufactured goods through the blade is simple, do not cut the overlap, still need to carry out the operation of deburring after taking off the semi-manufactured goods, waste time and energy, and the cutting accuracy of blade is not high, can lead to there being comparatively obvious difference between the finished product, influences the control of finished product quality.

Disclosure of Invention

The invention aims to solve the technical problems and provide a high-precision blanking device capable of removing burrs at one time for a plastic dropper die.

The purpose of the invention is realized as follows: a blanking device of a plastic dropper mold comprises a fixed template and a movable template, wherein a blanking hole is formed in the movable template, and the shape of the blanking hole is matched with that of a plastic dropper. The cutter can stretch into the feed opening to cut the blow-molded semi-finished plastic dropper, and the shape of the cutter is matched with that of the plastic dropper, so that the flash of the semi-finished plastic dropper can be cut, and the production efficiency is improved. The first driving mechanism drives the fixed die plate to move, the second driving mechanism drives the cutter to move, the first positioning device is arranged on the first driving mechanism, the second positioning device is arranged on the second driving mechanism, the accuracy of the movement of the first driving mechanism and the second driving mechanism can be guaranteed, and therefore the accuracy of material cutting is guaranteed.

In this technical scheme, first actuating mechanism includes first slide rail, and one end fixed mounting at first slide rail has the fixed die holder, and movable die holder is installed to the mobilizable other end at first slide rail, and first pushing mechanism is connected to the movable die holder, and first pushing mechanism can be pneumatic cylinder, cylinder or electric putter to make movable die holder can move towards the fixed die holder on first slide rail. And a fixed die plate is arranged on one surface of the fixed die holder facing the movable die holder, a movable die holder is arranged on one surface of the movable die holder facing the fixed die holder, and the movable die plate and the fixed die plate are matched through the movement of the movable die holder. Set up buffer gear between cover half seat and movable mould seat, buffer gear includes acceptance portion and buffer portion, through the cooperation of acceptance portion and buffer portion, can cushion when the movable mould board is about to compound die with the cover half, reduces the impact of impact when the compound die to the half-finished position of plastics burette, guarantees the precision of blank.

Furthermore, the receiving part comprises a receiving cavity, a fixed body and a movable body are arranged in the receiving cavity, the fixed body is arranged on one side of the receiving cavity, and the movable body is arranged on the other side opposite to the fixed body. The fixed body and the movable body are both provided with inclined planes, so that the fixed body and the movable body form a horn-shaped structure. The movable body makes it can move in the direction of the fixed body of orientation in the accepting cavity through the guide rail structure, and the movable body is connected with the buffer beam simultaneously, and the movable body is connected to the one end of buffer beam, and the other end runs through the lateral wall of accepting cavity, and the buffer beam can stretch out and draw back on the lateral wall of accepting cavity when the removal through the movable body, and first buffer spring is established to the cover on the buffer beam, and first buffer spring one end conflicts the movable body, and the other end conflicts the accepting cavity lateral wall, can cushion the removal of the movable body.

The buffer part comprises a first buffer body, a second buffer body and a third buffer body, the three are made of elastic materials, the first buffer body, the second buffer body and the third buffer body are round table-shaped structures, the front ends of the first buffer body and the second buffer body are smaller than the rear ends of the round table-shaped structures, the height of the first buffer body, the height of the second buffer body and the height of the third buffer body are the same, the taper of the first buffer body and the taper of the third buffer body are gradually increased, the rear end of the second buffer body is provided with a first embedded groove to enable the front end of the first buffer body to be embedded, the rear end of the third buffer body is provided with a second embedded groove to enable the front end of the second buffer body to be embedded, and the buffer performance of the buffer part can be greatly improved through the three-level buffer structure.

When the fixed die plate and the movable die plate are assembled, the buffering part is embedded into the opening formed by the fixed body and the movable body, the buffering part also pushes the movable body to move outwards, the movable body is buffered through the first buffer spring when moving, and therefore the impact of the buffering part is buffered, and meanwhile, the buffering part can effectively vibrate and impact the link through the deformation and the friction between the three-level structures, the buffering vibration damping effect is further improved, and the precision in assembling is guaranteed.

In this technical scheme, first positioning mechanism is including setting up the pressure sensor in the die holder side, pressure sensor and controller connection structure. The movable die holder is provided with a supporting seat corresponding to the position of the pressure sensor, the supporting seat is provided with an elastic piece, and the end part of the elastic piece is provided with a contact. When the movable mould plate and the fixed mould plate are closed, the contact can be abutted against the pressure sensor, so that the pressure sensor is stressed to generate a signal. Meanwhile, the elastic piece is composed of a telescopic rod, a guide rod and a second buffer spring, the telescopic rod is sleeved on the guide rod, the second buffer spring is also sleeved on the guide rod, one end of the second buffer spring abuts against the telescopic rod, the other end of the second buffer spring abuts against the supporting seat, and the spring can be extruded when the telescopic rod contracts on the guide rod. When the contact contradicts pressure sensor, the telescopic link shrink, impact force when can the buffer tank conflict through the spring guarantees the stability of compound die. Meanwhile, as the distance between the movable template and the fixed template is closer and closer, the pressure of the contact to the pressure sensor is larger and larger, and when the pressure is larger than a threshold value, the first pushing mechanism can be indicated to act in place, and the die assembly of the fixed template and the movable template is completed.

In the technical scheme, the second driving mechanism comprises a second slide rail, the fixed die plate is connected with the fixed die base through the connecting frame, so that a large space is reserved between the fixed die plate and the fixed die base, and the second slide rail is arranged in the space reserved between the fixed die plate and the fixed die base. Set up the cutter board on the second slide rail, the blank board passes through second pushing mechanism and moves on the second slide rail, and the one side of blank board towards the fixed die plate is provided with the cutter, and the thickness of cutter is greater than the movable mould plate thickness, and when the blank board was closest to the movable mould board, the cutter stretched into completely in the feed opening and had some to expose the feed opening outside, can guarantee that cutter and fixed die plate conflict and carry out the blank. The movable die holder is provided with a mounting seat, the mounting seat is provided with a second pushing mechanism, and the second pushing mechanism is one of a hydraulic cylinder, an air cylinder or an electric push rod.

Furthermore, the second positioning mechanism comprises a first travel switch and a second travel switch, the first travel switch is arranged on one side, close to the movable die holder, of the second slide rail, the second travel switch is arranged on one side, close to the fixed die holder, of the second slide rail, and the first travel switch and the second travel switch can be triggered through one side, on the second slide rail, of the blanking plate. When the cutter does not cut materials, the cutting plate is close to the fixed die holder, the cutting plate triggers the first travel switch, and when the cutting is needed, the cutting plate moves and stops triggering the first travel device, and the second travel switch is triggered when the cutting plate is in place. The first travel switch and the second travel switch are both connected with the controller, and can send signals to the controller when being triggered, and the first travel switch and the second travel switch can be used for knowing whether the material pushing plate is in place or withdrawn currently.

In the technical scheme, the material pushing surface is arranged on one surface, facing the movable template, of the fixed template, the plurality of positioning blocks are arranged on the edge of the blanking port, the positioning blocks can be abutted to the material pushing surface when the fixed template and the movable template are assembled, the semi-finished plastic dropper is limited, the semi-finished plastic dropper can be embedded into the blanking port, the material can be conveniently cut, and meanwhile the material cutting precision can be guaranteed.

The invention also provides a control method of the blanking device of the plastic dropper mold, which comprises the following steps:

s1: before cutting, the fixed die plate and the movable die plate are not matched, the cutter is also in an exit state, the cutting plate triggers a first travel switch at the moment, the first travel switch sends a signal to the controller, and the controller controls the first pushing mechanism to act according to the signal of the first travel switch so as to enable the movable die holder to move towards the fixed die holder;

s2: the movable die holder moves towards the fixed die holder to enable the movable die plate and the fixed die plate to be matched, the contact head abuts against the pressure sensor at the moment, and the pressure sensor transmits the current pressure value P1 to the controller;

s3: setting pressure values P2 and P2 as normal pressures when the movable die plate and the fixed die plate are matched,

if P1 is not less than P2, the movable mould plate and the fixed mould plate are judged to be normally matched, and the control unit controls the second pushing mechanism to act;

if P1 is less than P2, judging that the movable mould plate and the fixed mould plate are not normally matched, controlling the first pushing mechanism to retreat and giving an alarm;

s4: the second pushing mechanism pushes the cutter plate to enable the cutter to extend into the feed opening for cutting, at the moment, the cutter plate triggers a second travel switch, and the second travel switch sends a signal to the controller;

s5: the controller firstly controls the first pushing mechanism to retreat according to the signal of the second travel switch, and then controls the second pushing mechanism to retreat.

According to the technical scheme, under the reset state without material cutting, the material cutting plate is close to one side of the movable die base and triggers the first travel switch, the controller receives a signal of the first travel switch of the cutter and controls the first pushing mechanism to push the movable die base to move, so that the cutter can be guaranteed to be in the withdrawing position when the movable die plate and the fixed die plate are combined, and the cutter is prevented from contacting a semi-finished product of the plastic dropper at first to cause the semi-finished product to deviate from the original fixed position and influence the material cutting precision. Under the push of the first pushing mechanism, the movable die base is close to the fixed die base, so that the fixed die plate and the fixed die plate are matched, the contact is abutted against the pressure sensor, the pressure applied to the pressure sensor is gradually increased in the process that the fixed die base and the movable die base are close to each other, when the pressure is greater than a threshold value, the controller judges that the fixed die plate and the movable die plate are matched and controls the second pushing mechanism to push the cutting plate to move on the second slide rail, at the moment, the cutting plate stops triggering the first travel switch, the cutter is abutted against the fixed die plate when the fixed die plate is close to the fixed die plate, the second travel switch is triggered, the controller receives a second travel switch signal and controls the first pushing mechanism and the second pushing mechanism to retreat after a preset time, so that the cutter retreats, so that the fixed die plate and the movable die plate are separated, and the first pushing mechanism retreats before the second pushing mechanism, and a part of the cutter can extend out of the discharging port, when the fixed die plate retreats for a certain distance, the cutter can still abut against the fixed die plate, so that the flash can be separated from the plastic dropper, and finished products can be conveniently collected.

The invention has the beneficial effects that:

1. the semi-finished plastic dropper is subjected to cutting through the cutter matched with the plastic dropper in shape, burrs can be completely removed, manual subsequent treatment is not needed, time and labor are saved, and production efficiency can be improved.

2. The cutter is installed on the cutter board, and the cutter board promotes through second pushing mechanism, and the cutter board sets up on the movable mould base, and the movable mould base promotes through first pushing mechanism, sets up buffer gear on the movable mould base, and the impact force of movable mould base when can effectively cushion the compound die prevents that plastics burette semi-manufactured goods offset from influencing the blank precision.

3. The first positioning device and the second positioning device are arranged, so that whether the movable die holder and the blanking plate are in place or not can be detected, the later action is controlled, the in-place precision of the movable die holder and the blanking plate is ensured, and the precision of blanking is ensured.

4. The edge at the feed opening sets up a plurality of locating pieces, and the locating piece can be to the plastic burette semi-manufactured goods when fixed die plate and movable mould board will compound die carry out the quotation mark and spacing, makes it aim at the feed opening, makes things convenient for the cutter cutting, also can improve the precision of blank simultaneously.

Drawings

FIG. 1 is a schematic diagram of the positional relationship of a fixed die plate, a movable die plate, a fixed die holder, a movable die holder and a blanking plate;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a schematic view of the structure at A in FIG. 2;

FIG. 4 is a schematic view of the receiving portion;

FIG. 5 is a schematic view of the buffer portion;

wherein the reference numerals are: 100. fixing a die holder; 200. a movable die holder; 210. a mounting seat; 220. a second pushing mechanism; 230. a second slide rail; 300. fixing a template; 310. a pressure sensor; 320. a receiving section; 321. A receiving cavity; 322. a fixed body; 323. a movable body; 324. a buffer rod; 325. a first buffer spring; 400. Moving the template; 410. a feeding port; 420. positioning blocks; 430. a buffer section; 431. a first buffer body; 432. a second buffer body; 433. a third buffer body; 434. a second embedded groove; 435. a first embedded groove; 436. A fixed seat; 440. an elastic member; 441. a telescopic rod; 442. a guide bar; 443. a second buffer spring; 444. A supporting seat; 445. a contact; 450. a support frame; 451. a first travel switch; 452. a second travel switch; 500. a material cutting plate; 510. a cutter; 600. a first pushing mechanism; 610. a first slide rail.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present disclosure.

In the description of the present invention, it is to be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the present application. For convenience of description, the dimensions of the various features shown in the drawings are not necessarily drawn to scale. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.

It should be noted that the terms "first," "second," and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

It should be noted that in the description of the present application, the orientation or positional relationship indicated by the terms such as "front, back, up, down, left, right", "lateral, vertical, horizontal" and "top, bottom" and the like are generally based on the orientation or positional relationship shown in the drawings for convenience of description and simplicity of description only, and in the case of not making a reverse description, these orientation terms do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the scope of the present application; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.

It should be noted that, in the present application, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.

Example 1:

referring to fig. 1, the present embodiment provides a blanking device for a plastic dropper mold, which includes a fixed mold plate 300 and a movable mold plate 400, wherein the movable mold plate 400 is provided with a blanking opening 410, and the shape of the blanking opening 410 is matched with the shape of a plastic dropper. The cutter 510 can stretch into the feed opening 410 to cut the blow-molded semi-finished plastic dropper, and the shape of the cutter 510 is matched with that of the plastic dropper, so that the flash of the semi-finished plastic dropper can be cut, and the production efficiency is improved. The first driving mechanism drives the fixed die plate 300 to move, the second driving mechanism drives the cutter 510 to move, the first positioning device is arranged on the first driving mechanism, and the second positioning device is arranged on the second driving mechanism, so that the action accuracy of the first driving mechanism and the second driving mechanism can be ensured, and the material cutting accuracy is ensured.

As shown in fig. 1, in the present embodiment, preferably, a material pushing surface is disposed on one surface of the fixed die plate 300 facing the movable die plate 400, a plurality of positioning blocks 420 are disposed on an edge of the material discharging opening 410, and when the fixed die plate 300 and the movable die plate 400 are assembled, the positioning blocks 420 can abut against the material pushing surface to limit a semi-finished product of the plastic dropper, so that the semi-finished product can be embedded into the material discharging opening 410, thereby facilitating material cutting and ensuring material cutting accuracy.

Example 2:

referring to fig. 2, the present embodiment provides a blanking device for a plastic dropper mold, which includes the following technical features in addition to the technical features of the above embodiment.

As shown in fig. 2, the first driving mechanism includes a first slide rail 610, a fixed die holder 100 is fixedly mounted at one end of the first slide rail 610, a movable die holder 200 is movably mounted at the other end of the first slide rail 610, the movable die holder 200 is connected to a first pushing mechanism 600, and the first pushing mechanism 600 may be a hydraulic cylinder, an air cylinder or an electric push rod, so that the movable die holder 200 can move toward the fixed die holder 100 on the first slide rail 610. The fixed die plate 300 is mounted on the surface of the fixed die holder 100 facing the movable die holder 200, the movable die holder 200 is mounted on the surface of the movable die holder 200 facing the fixed die holder 100, and the movable die plate 400 is clamped with the fixed die plate 300 by moving the movable die holder 200. The buffer mechanism is arranged between the fixed die holder 100 and the movable die holder 200, the buffer mechanism comprises the receiving part 320 and the buffer part 430, and the receiving part 320 and the buffer part 430 are matched with each other, so that the buffer mechanism can buffer the movable die plate 400 and the fixed die plate 300 when the dies are assembled, the influence of impact during die assembly on the position of a semi-finished product of the plastic dropper is reduced, and the precision of cutting is ensured.

Example 3:

referring to fig. 4 and 5, the present embodiment provides a blanking device for a plastic dropper mold, which includes the following receiving features in addition to the technical features of the embodiment.

As shown in fig. 4, the receiving portion 320 includes a receiving cavity 321, a fixed body 322 and a movable body 323 are disposed in the receiving cavity 321, the fixed body 322 is disposed to one side of the receiving cavity 321, and the movable body 323 is disposed to the other side opposite to the fixed body 322. The fixed body 322 and the movable body 323 are provided with inclined surfaces, so that the fixed body 322 and the movable body 323 form a horn-shaped structure. The activity body 323 makes it move in the direction of orientation fixed body 322 in the accepting cavity 321 through the guide rail structure, the activity body 323 is connected with buffer rod 324 simultaneously, activity body 323 is connected to buffer rod 324's one end, the other end runs through the lateral wall of accepting cavity 321, buffer rod 324 can stretch out and draw back on the lateral wall of accepting cavity 321 when the removal through the activity body 323, first buffer spring 325 is established to the cover on the buffer rod 324, first buffer spring 325 one end conflicts the activity body 323, the other end conflicts the accepting cavity 321 lateral wall, can cushion the removal of activity body 323.

As shown in fig. 5, the second buffer body 432 and the third buffer body 433 are made of elastic materials, the first buffer body 431, the second buffer body 432 and the third buffer body 433 are each a truncated cone-shaped structure with a front end smaller than a rear end, the first buffer body 431, the second buffer body 432 and the third buffer body 433 have the same height and gradually increased taper, the rear end of the second buffer body 432 is provided with a first insertion groove 435 for inserting the front end of the first buffer body 431, the rear end of the third buffer body 433 is provided with a second insertion groove 434 for inserting the front end of the second buffer body 432, and the buffer performance of the buffer part 430 can be greatly improved by the three-stage buffer structure.

When the fixed die plate 300 and the movable die plate 400 are matched, the buffering portion 430 is embedded into an opening formed by the fixed body 322 and the movable body 323, meanwhile, the buffering portion 430 also pushes the movable body 323 to move outwards, the movable body 323 is buffered through the first buffer spring 325 when moving, and therefore impact of the buffering portion 430 is buffered, meanwhile, the buffering portion 430 can effectively link vibration and impact of the buffering portion through deformation and friction between three-level structures, the buffering vibration reduction effect is further improved, and the accuracy in matching is guaranteed.

Example 4:

referring to fig. 2 and 3, the present embodiment provides a blanking device for a plastic dropper mold, which includes the following receiving features in addition to the technical features of the present embodiment.

As shown in fig. 2, the first positioning mechanism includes a pressure sensor 310 disposed at a side of the fixed mold base 100, and the pressure sensor 310 is connected to the controller. The movable die holder 200 is provided with a support seat 444 corresponding to the position of the pressure sensor 310, the support seat 444 is provided with an elastic member 440, and the end of the elastic member 440 is provided with a contact 445. When the movable mold plate 400 and the fixed mold plate 300 are closed, the contact 445 can abut against the pressure sensor 310, so that the pressure sensor 310 is pressed to send a signal.

As shown in fig. 3, the elastic member 440 comprises a telescopic rod 441, a guide rod 442, and a second buffer spring 443, wherein the telescopic rod 441 is sleeved on the guide rod 442, the second buffer spring 443 is also sleeved on the guide rod 442, and one end of the second buffer spring is abutted against the telescopic rod 441 and the other end of the second buffer spring is abutted against the support seat 444, such that the telescopic rod 441 can extrude the spring when the telescopic rod 441 contracts on the guide rod 442. When the contact 445 abuts against the pressure sensor 310, the telescopic rod 441 contracts, impact force generated when the tank abuts against can be buffered through the spring, and the stability of die assembly is guaranteed. Meanwhile, as the distance between the movable platen 400 and the fixed platen 300 is closer, the pressure of the contact 445 on the pressure sensor 310 is greater, and when the pressure is greater than the threshold, it can be shown that the first pushing mechanism 600 has been moved in place, and the closing of the fixed platen 300 and the movable platen 400 is completed.

Example 5:

referring to fig. 2, the present embodiment provides a blanking device for a plastic dropper mold, which includes the following receiving features in addition to the technical features of the embodiment.

As shown in fig. 2, the second driving mechanism includes a second slide rail 230, the fixed die plate 300 is connected to the fixed die base 100 through a connecting frame, so that a large space is left between the fixed die plate 300 and the fixed die base 100, and the second slide rail 230 is disposed in the space left between the fixed die plate 300 and the fixed die base 100. Set up cutter board 500 on the second slide rail 230, cutter board 500 passes through second pushing mechanism 220 and moves on second slide rail 230, and cutter 510 is provided with towards the one side of fixed die plate 300 to cutter board 500, and the thickness of cutter 510 is greater than the thickness of movable die plate 400, and when cutter board 500 was closest to movable die plate 400, cutter 510 stretched into in feed opening 410 completely and had some to expose outside feed opening 410, can guarantee that cutter 510 contradicts with fixed die plate 300 and carries out the blank. The movable die holder 200 is provided with an installation seat 210, the installation seat 210 is provided with a second pushing mechanism 220, and the second pushing mechanism 220 is one of a hydraulic cylinder, an air cylinder or an electric push rod.

Example 6:

referring to fig. 2, the present embodiment provides a blanking device for a plastic dropper mold, which includes the following receiving features in addition to the technical features of the embodiment.

As shown in fig. 2, the second positioning mechanism includes a first travel switch 451 and a second travel switch 452, the first travel switch 451 is disposed on a side of the second slide rail 230 close to the movable die holder 200, the second travel switch 452 is disposed on a side of the second slide rail 230 close to the stationary die holder, and the first travel switch 451 and the second travel switch 452 can be triggered by a side of the blank plate 500 on the second slide rail 230. When the cutter 510 does not cut, the cutting plate 500 is close to the fixed die holder 100, at this time, the cutting plate 500 triggers the first travel switch 451, when the cutting is needed, the cutting plate 500 moves and stops triggering the first travel device, and when the cutting is in place, the second travel switch 452 is triggered. The first travel switch 451 and the second travel switch 452 are both connected to a controller, and can send a signal to the controller when being triggered, and whether the material pushing plate is currently in place or withdrawn can be known through the signals of the first travel switch 451 and the second travel switch 452.

While the embodiments of the present application have been described in connection with the drawings, the embodiments and features of the embodiments of the present application can be combined with each other without conflict, and the present application is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present application and the claims.