CN219855809U - Full-automatic punching mechanism for separating injection product and injection rod of mold - Google Patents

Abstract

The utility model discloses a full-automatic punching mechanism for separating a mold injection product and an injection rod, which relates to the technical field of water cutting ports, and the full-automatic punching mechanism locally optimizes the water cutting port mode of the injection product, aims at the synchronous cutting process of a plurality of water ports, and specifically comprises the following steps: for a plurality of water gaps at different height positions, the structural bodies of the upper cutter seat and the lower cutter seat are adopted, an upper cutter is arranged in the upper cutter seat, a lower cutter is arranged in the lower cutter seat, wherein the lower cutter is used for supporting the lower side position of the water gap, the upper cutter is used as a direct structure of the water gap, on the basis, two of the upper cutter seats can relatively move, particularly, the water gap position at the highest point is used as a starting point, when one of the upper cutters is contacted with the highest point water gap position in the lower cutter seat, the other upper cutter can cooperatively move until the two upper cutters are contacted with the water gap at the same time, and the water gap cutting action is completed in a synchronous supporting mode.

Description

Full-automatic punching mechanism for separating injection product and injection rod of mold

Technical Field

The utility model relates to the technical field of water cutting ports, in particular to a full-automatic punching mechanism for separating a mold injection product and an injection rod.

Background

For injection products, the injection mold is mainly produced through an injection molding process, the injection mold comprises a pouring gate and a molding cavity, molten glue is injected into the molding cavity along the pouring gate, after the glue is cooled and solidified, the injection product with a corresponding shape is formed, wherein the glue in the pouring gate is synchronously cooled and solidified to form a water gap structure such as an injection rod, and therefore, water gap cutting operation is needed to be executed, and reference can be made to related technical contents in an automatic water gap punching machine for injection molding with the publication number of CN 103407114A.

For injection products, the injection mold can obtain a single product or a plurality of products in one injection molding action, for single products, the injection mold is used for producing injection products with larger volumes, for a plurality of products, the injection mold is used for injection products with smaller volumes, for single products, a plurality of water gap structures are often added for ensuring injection quality, and most of injection products with smaller volumes are single water gaps.

From the above, a single product includes a plurality of gate structures, and a plurality of injection products obtained by integral molding also include gate structures, and it is to be noted that: according to the appearance of an injection molding product, the height positions of a water gap relative to the injection molding product are different, so that for the existing water gap cutting structure, the relative positions of the cutting heads are required to be adjusted according to the water gap positions, and the relative positions of each cutting head are guaranteed to correspond to the corresponding water gap positions, so that a die bench worker is required to have higher dimensional accuracy requirements of the installation positions in the assembly process, and in the long-term operation period, the relative heights of the cutting heads and the water gap are different, namely insufficient cutting head stroke can occur, the water gap cannot be completely cut off, or the water gap is in a broken state, and the water gap positions on the injection molding product after the water gap is cut off have the problems of burrs and the like.

Disclosure of Invention

The utility model aims to provide a full-automatic punching mechanism for separating an injection product of a die from an injection rod, which is used for solving the problems that the assembly requirement of a die bench worker is higher and the head cutting stroke is insufficient because of the difference of the relative height positions of a water gap structure in the water gap cutting operation of the injection product.

The aim of the utility model can be achieved by the following technical scheme: the full-automatic punching mechanism for separating the injection molding product of the mold and the injection molding rod comprises a bottom plate, a movable plate, a mounting plate, a fixing plate and a hanging wall frame, wherein the bottom plate, the movable plate, the mounting plate and the fixing plate are sequentially arranged in the direction from bottom to top;

an upper pressing seat is arranged at the position, close to the outer wall of the bottom plate, of the movable plate, a lower pressing seat is arranged at the position, close to the outer wall of the movable plate, of the bottom plate, an upper cutter holder is arranged at the position, corresponding to the upper pressing seat, of the movable plate, a lower cutter holder is arranged at the position, corresponding to the lower pressing seat, of the bottom plate, an upper cutter and a lower cutter are respectively arranged in the upper cutter holder and the lower cutter holder, and the number of the upper cutters and the lower cutters in the upper cutter holder and the lower cutter holder is two;

the gear cavity is formed in the upper cutter seat, the transfer gear and the two driving gears are respectively rotatably arranged in the gear cavity, the two driving gears are meshed with the transfer gear and are not meshed with each other, a gear groove is formed in the position, close to the inner wall of the driving gear, of the upper cutter, the upper cutter is in sliding connection in the upper cutter seat along the vertical direction, and the gear groove is meshed with the driving gears.

Further provided is that: the installation sleeve is installed on the outer wall position of the upper tool apron corresponding to the transfer gear, the rolling reed is arranged in the installation sleeve, the supporting rod is installed at the center point of the transfer gear, the supporting rod penetrates through the upper tool apron, one end of the supporting rod is connected with one end of the spring coiling sheet, and the other end of the spring coiling sheet is installed on the inner wall position of the installation sleeve.

Further provided is that: the upper pressing seat is in sliding connection in the movable plate along the vertical direction, the upper pressing seat is provided with a guide rod, the guide rod is in sliding connection in the movable plate along the vertical direction, the movable plate is provided with a first spring corresponding to the upper surface position of the upper pressing seat, and the top end of the first spring is arranged on the lower surface position of the mounting plate.

Further provided is that: and the four corners of the lower surface of the mounting plate are provided with disc springs, and the lower ends of the disc springs are arranged on the four corners of the upper surface of the movable plate.

Further provided is that: the lower supporting knife is in sliding connection in the lower knife holder along the vertical direction, and the lower supporting knife is positioned at the position right below the upper cutter.

Further provided is that: and a second spring is arranged at the center point of the lower surface of the lower supporting knife, and the second spring is arranged in the lower knife holder.

Further provided is that: the center electric position of the upper surface of the lower cutter holder is provided with a center supporting block, a cavity corresponding to the center supporting block is formed in the lower cutter holder, a stator electric block is arranged at the bottom end of the inner wall of the cavity, a sliding rod is arranged at the center point of the lower surface of the center supporting block, the sliding rod penetrates downwards into the cavity, a rotor electric block is arranged at the tail end of the sliding rod, and the rotor electric block is electrically connected with the stator electric block.

Further provided is that: and a third spring is arranged on the slide bar at the position of the peripheral outer wall of the top end of the inner wall of the cavity and the electrical block of the rotor.

The utility model has the following beneficial effects:

1. the utility model is mainly aimed at the water cutting opening action of injection products, more specifically: the cutting process of the multiple water gaps at different height positions is specifically shown as follows: the upper cutter seat is provided with two movable upper cutters which are matched with the water gap position to relatively move, specifically, the water gap position at the highest point is used as a starting air cushion, when one water gap contacts the water gap position at the highest point, the two upper cutters can perform two movement states of ascending or descending, and the purpose is that: the two upper cutters are contacted with the water gap simultaneously, so that synchronous water gap cutting actions are carried out, and the situation that one water gap is broken due to time difference of water gap cutting actions at different positions is avoided;

2. the bottom plate is provided with a lower cutter seat, the lower cutter seat is internally provided with a lower supporting cutter corresponding to the upper cutter, the purpose of the lower cutter seat is to support the water gap, the problem that the water gap is broken is further avoided, on the basis, the lower supporting cutter is movably moved in the vertical direction through a second spring, and a central supporting block is additionally arranged, the central supporting block corresponds to an injection molding rod in an injection molding product, the central supporting block moves along with the action of the water gap, and the purpose of the central supporting block is that: the device is used for pushing the rotor electric block to be in contact with the stator electric block and used as judging data for finishing water cutting.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following description will briefly explain the drawings used in the embodiments or the description of the prior art, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a fully automatic punching mechanism for separating a mold injection product from an injection rod according to the present utility model;

FIG. 2 is a split view of a fully automatic punch mechanism for separating a molded injection product from an injection molded stem according to the present utility model;

FIG. 3 is a cross-sectional view of a movable plate member of the full-automatic punch mechanism for separating a molded injection product from an injection molding bar according to the present utility model;

FIG. 4 is a schematic view of the structure of the upper tool apron component of the full automatic punching mechanism for separating the injection product from the injection rod;

FIG. 5 is a cross-sectional view of an upper tool holder assembly of the full automatic punch mechanism for separating a molded injection product from an injection molding bar according to the present utility model;

fig. 6 is a cut-away view of a lower tool holder assembly of the full automatic punch mechanism for separating a molded injection product from an injection molding bar according to the present utility model.

In the figure: 1. a bottom plate; 2. a movable plate; 3. a vertical ledge; 4. a pneumatic push rod; 5. a fixing plate; 6. a mounting plate; 7. a disc spring; 8. a first spring; 9. an upper tool apron; 10. an upper pressing seat; 11. pressing down a seat; 12. a guide rod; 13. a mounting sleeve; 14. an upper cutter; 15. a gear groove; 16. a transfer gear; 17. a rolling reed; 18. a gear cavity; 19. a drive gear; 20. a lower tool apron; 21. a stator electrical block; 22. a second spring; 23. a lower supporting knife; 24. a center support block; 25. a slide bar; 26. a third spring; 27. and a mover electrical block.

Detailed Description

The technical solutions of the present utility model will be clearly and completely described in connection with the embodiments, and it is obvious that the described embodiments are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

For the water gap cutting operation of injection products, because a plurality of water gap positions exist between an injection molding rod in the injection products and the injection products, and the height positions of each water gap position relative to the injection products are different, when the water gap cutting mold is assembled, the mold bench worker is not only required to have higher dimensional accuracy requirements of the installation position in the assembly process, but also has the difference between the relative heights of a head cutting and the water gap in the long-term use process, namely the head cutting stroke is possibly insufficient, the water gap cannot be completely cut off, or the water gap is in a broken state, and the following technical scheme is provided:

referring to fig. 1-5, the full-automatic punching mechanism for separating a mold injection product from an injection rod in the present embodiment includes a base plate 1, a movable plate 2, a mounting plate 6, a fixed plate 5, and a vertical wall frame 3, where the base plate 1, the movable plate 2, the mounting plate 6, and the fixed plate 5 are sequentially arranged in a direction from bottom to top, the vertical wall frame 3 is mounted on the base plate 1, the fixed plate 5 is mounted on the vertical wall frame 3, and a pneumatic push rod 4 is mounted at a central point of an upper surface of the fixed plate 5, a transmission shaft of the pneumatic push rod 4 extends downward, and a transmission shaft end of the pneumatic push rod 4 is connected with a central point of the mounting plate 6;

an upper pressing seat 10 is arranged at the position, close to the outer wall of the bottom plate 1, of the movable plate 2, a lower pressing seat 11 is arranged at the position, close to the outer wall of the movable plate 2, of the bottom plate 1, an upper cutter seat 9 is arranged at the position, corresponding to the upper pressing seat 10, of the movable plate 2, a lower cutter seat 20 is arranged at the position, corresponding to the lower pressing seat 11, of the bottom plate 1, an upper cutter 14 and a lower cutter 23 are respectively arranged in the upper cutter seat 9 and the lower cutter seat 20, and the number of the upper cutters 14 and the lower cutters 23 in the upper cutter seat 9 and the lower cutter seat 20 is two;

the gear cavity 18 is formed in the upper cutter holder 9, the transfer gear 16 and the two driving gears 19 are respectively rotatably mounted in the gear cavity 18, the two driving gears 19 are meshed with the transfer gear 16, the two driving gears 19 are not meshed with each other, the gear groove 15 is formed in the position, close to the inner wall of the driving gear 19, of the upper cutter 14, the upper cutter 14 is in sliding connection in the upper cutter holder 9 along the vertical direction, the gear groove 15 is meshed with the driving gears 19, the disc springs 7 are mounted at four corners of the lower surface of the mounting plate 6, and the lower ends of the disc springs 7 are mounted at four corners of the upper surface of the movable plate 2.

The upper tool apron 9 is corresponding to the outer wall position of the transfer gear 16 and is provided with a mounting sleeve 13, a coil spring sheet 17 is arranged in the mounting sleeve 13, a supporting rod is arranged at the center point of the transfer gear 16 and penetrates through the upper tool apron 9, one end of the supporting rod is connected with one end of the coil spring sheet 17, and the other end of the coil spring sheet 17 is arranged on the inner wall position of the mounting sleeve 13.

The upper pressing seat 10 is in sliding connection in the movable plate 2 along the vertical direction, the upper pressing seat 10 is provided with a guide rod 12, the guide rod 12 is in sliding connection in the movable plate 2 along the vertical direction, the movable plate 2 is provided with a first spring 8 corresponding to the upper surface position of the upper pressing seat 10, and the top end of the first spring 8 is arranged on the lower surface position of the mounting plate 6.

The embodiment mainly aims at the water gap cutting action, does not comprise the feeding action, and comprises the following steps:

step one: then placing the injection molding product with the water gap to be cut on a pressing seat 11, when a pneumatic push rod 4 is started, firstly driving a mounting plate 6 to move downwards and driving a movable plate 2 to move downwards synchronously until an upper pressing seat 10 contacts the injection molding product, in the process, under the action of a disc spring 7 matched with a first spring 8, the upper pressing seat 10 moves upwards synchronously while pressing the injection molding product until the upper pressing seat 10 and the pressing seat 11 clamp and fix the injection molding product, wherein the injection molding rod and the injection molding product are clamped by the upper pressing seat 10 and the pressing seat 11 synchronously;

step two: in the first step, the moving plate 2 and the mounting plate 6 move down by a distance according to the size of the injection molded product, which is not limited herein, and it should be noted that: the upper cutter holder 9 moves down synchronously until one of the upper cutters 14 in the upper cutter holder 9 contacts the highest point water gap position between the injection rod and the injection product, and when the movable plate 2 moves down synchronously, one of the upper cutters 14 contacts the highest point water gap position, as illustrated in fig. 5: when the upper cutter 14 positioned at the left side of the upper cutter holder 9 contacts the highest nozzle position, the upper cutter 14 does not execute the nozzle cutting action, but moves upwards, so that the driving gear 19 corresponding to the position of the upper cutter 14 rotates clockwise, then drives the transfer gear 16 to rotate anticlockwise, and the other driving gear 19 rotates anticlockwise, so that the other upper cutter 14 is driven to move downwards until the two upper cutters 14 contact the nozzle position at the same time;

step three: as shown in the second step, when the two upper cutters 14 simultaneously contact the nozzle positions, the movable plate 2 continues to move downward for a certain distance, so that the plurality of upper cutters 14 perform synchronous cutting actions on the nozzle positions, and the purpose is that: the problem that the upper cutter 14 at a certain place is not contacted with the water gap or the water gap cutting quality is low due to the overtravel of the upper cutter 14 at a certain place is avoided;

step four: as shown in the second to third steps, when the upper cutters 14 move, the intermediate transfer gears 16 rotate and drive the rolling reed 17 to roll, so that the rolling reed 17 has elastic potential energy in the rolling process, when the movable plate 2 resets, the intermediate transfer gears 16 are driven to rotate reversely by the elastic potential energy stored by the rolling reed 17, and then the two upper cutters 14 are driven to reset, which needs to be described: in the initial state, it can be understood that the initial positions of the two upper cutters 14 are at the same height.

Example two

The embodiment is to further optimize and improve the water cutting action in the first embodiment:

referring to fig. 6, the lower supporting blade 23 in the present embodiment is slidingly connected in the vertical direction in the lower blade holder 20, and the lower supporting blade 23 is located at a position directly below the upper cutter 14, a second spring 22 is installed at a central point of the lower surface of the lower supporting blade 23, the second spring 22 is installed in the lower blade holder 20, a central supporting block 24 is provided at a central electrical position of the upper surface of the lower blade holder 20, a cavity corresponding to the central supporting block 24 is provided inside the lower blade holder 20, a stator electrical block 21 is installed at the bottom end of the inner wall of the cavity, a sliding rod 25 is installed at a central point of the lower surface of the central supporting block 24, the sliding rod 25 penetrates down into the cavity, a mover electrical block 27 is installed at the end of the sliding rod 25, an electrical connection is provided between the mover electrical block 27 and the stator electrical block 21, and a third spring 26 is provided at a circumferential outer wall position of the sliding rod 25 located at the top end of the inner wall of the mover electrical block 27 and the cavity.

Operation principle: as shown in the first embodiment, when the upper pressing seat 10 and the lower pressing seat 11 clamp and fix the injection product, the lower supporting knife 23 contacts the lower side of the water gap, and the central supporting block 24 supports the injection rod, and when the clamping and fixing actions of the injection product are completed, the lower supporting knife 23 and the central supporting block 24 still have compressible potential energy through the second spring 22 and the third spring 25, and this purpose is that: is to cooperate with step three in the first embodiment;

it should be noted that: the maximum downward movement distance of the movable plate 2 of the apparatus is previously set according to the size of the injection product, so that it can be understood that: when the clamping and fixing of the injection molding product are finished, the rotor electric block 27 is not contacted with the stator electric block 21, but when the step three is finished, the rotor electric block 27 is contacted with the stator electric block 21 to be used as an electric signal for judging that the water gap cutting action is finished;

what needs to be further explained is: the moving process of the lower supporting knife 23 is different from that of the upper cutter 14, the lower supporting knife 23 can be automatically adjusted along with the water gap position, and particularly, the clamping and fixing actions of the upper pressing seat 10 and the lower pressing seat 11 on the injection molding product are relied on, but the lower supporting knife 23 and the central supporting block 24 mainly play a role in supporting the injection molding rod, and after the water gap cutting action is completed, the injection molding rod is separated from the injection molding product by the second spring 22 and the third spring 26.

To sum up: the method for cutting the water gap of the injection molding product is locally optimized, and aims at the synchronous cutting process of a plurality of water gaps, and specifically comprises the following steps: for a plurality of water gaps at different height positions, the structural bodies of the upper cutter seat and the lower cutter seat are adopted, an upper cutter is arranged in the upper cutter seat, a lower cutter is arranged in the lower cutter seat, wherein the lower cutter is used for supporting the lower side position of the water gap, the upper cutter is used as a direct structure of the water gap, on the basis, two of the upper cutter seats can relatively move, particularly, the water gap position at the highest point is used as a starting point, when one of the upper cutters is contacted with the highest point water gap position in the lower cutter seat, the other upper cutter can cooperatively move until the two upper cutters are contacted with the water gap at the same time, and the water gap cutting action is completed in a synchronous supporting mode.

The preferred embodiments of the utility model disclosed above are intended only to assist in the explanation of the utility model. The preferred embodiments are not intended to be exhaustive or to limit the utility model to the precise form disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the utility model and the practical application, to thereby enable others skilled in the art to best understand and utilize the utility model. The utility model is limited only by the claims and the full scope and equivalents thereof.

Claims (8)

1. The full-automatic punching mechanism for separating the injection molding product of the die from the injection molding rod comprises a bottom plate (1), a movable plate (2), a mounting plate (6), a fixed plate (5) and a hanging wall frame (3), and is characterized in that the bottom plate (1), the movable plate (2), the mounting plate (6) and the fixed plate (5) are sequentially arranged along the direction from bottom to top, the hanging wall frame (3) is mounted on the bottom plate (1), the fixed plate (5) is mounted on the hanging wall frame (3), a pneumatic push rod (4) is mounted at the central point of the upper surface of the fixed plate (5), a transmission shaft of the pneumatic push rod (4) extends downwards, and the tail end of the transmission shaft of the pneumatic push rod (4) is connected with the central point of the mounting plate (6);

an upper pressing seat (10) is arranged at the position, close to the outer wall of the bottom plate (1), of the movable plate (2), a lower pressing seat (11) is arranged at the position, close to the outer wall of the movable plate (2), of the bottom plate (1), an upper cutter seat (9) is arranged at the position, corresponding to the upper pressing seat (10), of the movable plate (2), a lower cutter seat (20) is arranged at the position, corresponding to the lower pressing seat (11), of the bottom plate (1), an upper cutter (14) and a lower cutter supporting (23) are respectively arranged in the upper cutter seat (9) and the lower cutter seat (20), and the number of the upper cutters (14) and the lower cutter supporting (23) in the upper cutter seat (9) and the lower cutter seat (20) is two;

the gear cavity (18) is formed in the upper cutter holder (9), the middle rotating gear (16) and the two driving gears (19) are respectively rotatably arranged in the gear cavity (18), the two driving gears (19) are meshed with the middle rotating gear (16), the two driving gears (19) are not meshed with each other, the gear groove (15) is formed in the position, close to the inner wall of the driving gear (19), of the upper cutter (14), the upper cutter (14) is in sliding connection in the upper cutter holder (9) along the vertical direction, and the gear groove (15) is meshed with the driving gears (19).

2. The full-automatic punching mechanism for separating a mold injection product from an injection molding rod according to claim 1, wherein an installation sleeve (13) is installed on the outer wall position of the upper tool apron (9) corresponding to the transfer gear (16), a rolling reed (17) is arranged inside the installation sleeve (13), a supporting rod is installed at the center point of the transfer gear (16), the supporting rod penetrates through the upper tool apron (9), one end of the supporting rod is connected with one end of the rolling reed (17), and the other end of the rolling reed (17) is installed on the inner wall position of the installation sleeve (13).

3. The full-automatic punching mechanism for separating a mold injection product from an injection molding rod according to claim 1, wherein the upper pressing seat (10) is in sliding connection in the movable plate (2) along the vertical direction, a guide rod (12) is arranged on the upper pressing seat (10), the guide rod (12) is in sliding connection in the movable plate (2) along the vertical direction, a first spring (8) is arranged on the upper surface position of the movable plate (2) corresponding to the upper pressing seat (10), and the top end of the first spring (8) is arranged on the lower surface position of the mounting plate (6).

4. A full-automatic punching mechanism for separating a mold injection product from an injection rod according to claim 3, wherein a disc spring (7) is mounted on four corners of the lower surface of the mounting plate (6), and the lower end of the disc spring (7) is mounted on four corners of the upper surface of the movable plate (2).

5. The full-automatic punching mechanism for separating a mold injection product from an injection rod according to claim 1, wherein the lower supporting knife (23) is slidingly connected in the vertical direction in the lower knife holder (20), and the lower supporting knife (23) is located at a position right below the upper knife (14).

6. The full-automatic punching mechanism for separating a mold injection product from an injection rod according to claim 5, wherein a second spring (22) is installed on the center point of the lower surface of the lower supporting knife (23), and the second spring (22) is installed in the lower knife holder (20).

7. The full-automatic punching mechanism for separating a mold injection product from an injection molding rod according to claim 6, wherein a central supporting block (24) is arranged at the central electric position of the upper surface of the lower tool apron (20), a cavity corresponding to the central supporting block (24) is formed in the lower tool apron (20), a stator electric block (21) is mounted at the bottom end of the inner wall of the cavity, a sliding rod (25) is mounted at the central point of the lower surface of the central supporting block (24), the sliding rod (25) penetrates downwards into the cavity, a rotor electric block (27) is mounted at the tail end of the sliding rod (25), and the rotor electric block (27) is electrically connected with the stator electric block (21).

8. The full-automatic punching mechanism for separating a mold injection product from an injection rod according to claim 7, wherein the slide bar (25) is provided with a third spring (26) at the position of the peripheral outer wall of the top end of the inner wall of the cavity and the mover electrical block (27).