CN222004248U

CN222004248U - Quick demoulding mechanism of injection mould

Info

Publication number: CN222004248U
Application number: CN202323536816.XU
Authority: CN
Inventors: 康冬平; 胡根明
Original assignee: Jiangsu Rongtai Mould Co ltd
Current assignee: Jiangsu Rongtai Mould Co ltd
Filing date: 2023-12-22
Publication date: 2024-11-15
Anticipated expiration: 2033-12-22

Abstract

The utility model discloses a quick demoulding mechanism of an injection mould, which comprises a lower mould and a mould cavity, wherein the mould cavity is arranged at the top of the lower mould, an inner cavity is arranged in the lower mould, a synchronous seat is connected on the inner wall of the inner cavity in a sliding manner, a top plate is connected on the inner bottom wall of the inner cavity in a sliding manner, the top of the top plate is fixedly connected with uniformly distributed ejector rods, and the top ends of the ejector rods penetrate through and extend to the inside of the mould cavity. According to the utility model, the moving direction and distance of the movable seat can be changed through the driving assembly, so that the movement of the synchronous seat is realized, in the demolding operation process, the plurality of groups of mounting frames can be pressed by the driving assembly, so that the knocking block knocks against the inner wall of the inner cavity, the adhesion part of the injection molding workpiece and the inner wall of the mold cavity is separated, the injection molding workpiece is prevented from being difficult to demold and even damaged due to adhesion during demolding, the plurality of groups of ejector rods can push the workpiece upwards immediately, and thus the demolding is completed, the operation steps are fewer in continuous action, and the demolding efficiency is high.

Description

Quick demoulding mechanism of injection mould

Technical Field

The utility model relates to the technical field of demolding of injection molds, in particular to a rapid demolding mechanism of an injection mold.

Background

The injection mold is a tool for producing plastic products, and is used for injecting heated and melted plastic into a mold cavity by an injection molding machine under high pressure, and obtaining a formed product after cooling and solidifying. The demoulding mechanism is a mechanism for taking out a formed part from an injection mould rapidly in the injection moulding process, so that the production efficiency can be improved, the production period can be shortened, and the time can be saved and the production can be more efficient due to rapid demoulding. The common injection mold rapid demoulding mechanism comprises a hydraulic oil cylinder, a pneumatic thimble, a spring mechanism and a sliding block mechanism. These mechanisms are designed to ensure that the molded part is ejected or ejected from the mold quickly and stably as the mold opens.

Through retrieving, patent application number CN202123248972.7 discloses a novel demoulding mechanism for quick injection mold, including bed die and die cavity, the top processing of bed die has the die cavity, the bottom of bed die is equipped with the drawing of patterns subassembly, the drawing of patterns subassembly includes the framework, the framework rigid coupling is in the bottom of bed die, the inner wall clearance fit of framework has the casing. This novel demoulding mechanism for quick injection mold connects external power source through the motor in the drive assembly, and the motor drives the double-end screw rod and rotates, and when the double-end screw rod rotated, can drive two first thread bush inwards laminating and remove, and when first thread bush moved, can drive first body of rod and upwards rotate, and when first body of rod rotated, the flexible of accessible telescopic link, the telescopic link goes up and down the direction to the plate body, drives the stable upward movement of plate body and ejector pin for the ejector pin shifts out telescopic inner wall, and moves into the inside of die cavity, carries out the drawing of patterns with the shaping work piece in the lower mould, need not the manpower drawing of patterns, and is comparatively convenient.

This structure is rotated and then is made the multiunit ejector pin to shift up to die cavity inside work piece and is ejecting through motor drive screw rod, but injection mold temperature is higher, probably can produce the adhesion with the die cavity inner wall before the drawing of patterns, and direct ejecting is comparatively difficult even causes the work piece to damage, and this structure is through driving at the bed die installation motor, and the produced vibration of motor operation can probably cause the influence to the stability of mould, consequently this person of skill provides an injection mold quick drawing of patterns mechanism to solve the above-mentioned problem.

Disclosure of utility model

Aiming at the problems in the prior art, the utility model aims to provide a rapid demoulding mechanism of an injection mould, which can prevent the situation that an injection-molded workpiece is difficult to demould and even damaged due to adhesion during demoulding, and meanwhile, a plurality of groups of ejector rods can push out the workpiece upwards, so that demoulding is completed, actions are consistent, operation steps are few, and demoulding efficiency is improved.

In order to achieve the above purpose, the present utility model adopts the following technical scheme.

The utility model provides a quick demoulding mechanism of injection mold, includes bed die and die cavity, the top at the bed die is seted up to the die cavity, the inner chamber has been seted up to the inside of bed die, sliding connection has synchronous seat on the inner wall of inner chamber, sliding connection has the roof on the inner bottom wall of inner chamber, the top fixedly connected with ejector pin of roof, the top of ejector pin runs through and extends to the inside of die cavity, the top fixedly connected with limiting plate of roof, fixedly connected with is two arm-tie on the inner wall of synchronous seat, the limiting plate runs through the arm-tie and extends to the top of arm-tie, sliding connection has evenly distributed's mounting bracket on the inner wall of inner chamber, rotate on the mounting bracket and be connected with the pinch roller, fixedly connected with evenly distributed's spring on the mounting bracket, the other end fixedly connected with of spring is on the inner wall of inner chamber, fixedly connected with beats the piece on the mounting bracket, the inboard fixedly connected with evenly distributed's briquetting of synchronous seat, the briquetting is located the bottom of pinch roller, the inside of inner chamber is provided with actuating assembly.

As a further description of the above technical solution: the driving assembly comprises an installation seat which is uniformly distributed, the installation seat is fixedly connected to the inner bottom wall of the inner cavity, a piston seat is slidably installed on the inner wall of the installation seat, the top of the piston seat is fixedly connected with a movable seat, the top of the movable seat penetrates through the installation seat and is fixedly connected to the inner wall of the synchronous seat, communicating pipes which are uniformly distributed are arranged in the inner cavity, two ends of each communicating pipe are located in the installation seat, an air pipe is fixedly connected to the front surface of the lower die, and the air pipe penetrates through the lower die and extends to the inside of the installation seat.

As a further description of the above technical solution: one side of the pressing block, which is close to the pressing wheel, is subjected to chamfering treatment, and the surface of the pressing block is smooth.

As a further description of the above technical solution: the left side and the right side of the synchronous seat are fixedly connected with sliding strips, and the sliding strips are in sliding connection with the inner wall of the inner cavity.

As a further description of the above technical solution: the inner bottom wall of the die cavity is provided with uniformly distributed engaging grooves, and the top end of the ejector rod is positioned in the engaging grooves and is attached to the inner wall of the engaging grooves.

As a further description of the above technical solution: the inside of spring is provided with the guide post, guide post fixed connection is on the inner wall of inner chamber, mounting bracket sliding connection is on the guide post.

Compared with the prior art, the utility model has the advantages that:

According to the utility model, the moving direction and distance of the movable seat can be changed through the driving assembly, so that the movement of the synchronous seat is realized, in the demolding operation process, the plurality of groups of mounting frames can be pressed by the driving assembly, so that the knocking block knocks against the inner wall of the inner cavity, the adhesion part of the injection molding workpiece and the inner wall of the mold cavity is separated, the injection molding workpiece is prevented from being difficult to demold and even damaged due to adhesion in demolding, and then the plurality of groups of ejector rods can push the workpiece upwards, so that demolding is completed, the operation steps are fewer in continuous action, and the demolding efficiency is high.

Drawings

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic cross-sectional elevation view of the present utility model;

FIG. 3 is an enlarged schematic view of the structure of FIG. 2A according to the present utility model;

FIG. 4 is a schematic top view of the present utility model;

FIG. 5 is a schematic perspective view of a synchronous seat according to the present utility model;

Fig. 6 is a schematic internal perspective view of the mounting base of the present utility model.

The reference numerals in the figures illustrate:

1. A lower die; 2. a mold cavity; 3. an inner cavity; 4. a synchronous seat; 5. a top plate; 6. a push rod; 7. a limiting plate; 8. pulling a plate; 9. a mounting frame; 10. a pinch roller; 11. a spring; 12. knocking the block; 13. briquetting; 14. a drive assembly; 1401. a mounting base; 1402. a piston seat; 1403. a movable seat; 1404. a communicating pipe; 1405. an air pipe; 15. a slide bar; 16. a fitting groove; 17. and a guide post.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

Referring to fig. 1-6, in the present utility model, a quick demolding mechanism for an injection mold comprises a lower mold 1 and a mold cavity 2, wherein the mold cavity 2 is formed at the top of the lower mold 1, an inner cavity 3 is formed in the lower mold 1, a synchronizing seat 4 is slidingly connected to the inner wall of the inner cavity 3, a top plate 5 is slidingly connected to the inner bottom wall of the inner cavity 3, a top rod 6 is fixedly connected to the top of the top plate 5, the top end of the top rod 6 penetrates and extends into the mold cavity 2, two limiting plates 7 are fixedly connected to the top of the top plate 5, two pull plates 8 are fixedly connected to the inner wall of the synchronizing seat 4, limiting plates 7 penetrate through the pull plates 8 and extend to the top of the pull plates 8, a uniformly distributed mounting frame 9 is slidingly connected to the inner wall of the inner cavity 3, a pinch roller 10 is rotationally connected to the mounting frame 9, a spring 11 is fixedly connected to the inner wall of the inner cavity 3, the other end of the spring 11 is fixedly connected to the inner wall of the inner cavity 3, a knocking block 12 is fixedly connected to the inner side of the synchronizing seat 4, a pressing block 13 is uniformly distributed to the inner wall of the inner cavity 3, and a driving component 14 is arranged in the inner cavity 3.

The driving assembly 14 comprises an installation seat 1401 which is uniformly distributed, the installation seat 1401 is fixedly connected to the inner bottom wall of the inner cavity 3, a piston seat 1402 is slidably installed on the inner wall of the installation seat 1401, a movable seat 1403 is fixedly connected to the top of the piston seat 1402, the top of the movable seat 1403 penetrates through the installation seat 1401 and is fixedly connected to the inner wall of the synchronous seat 4, a communicating pipe 1404 which is uniformly distributed is arranged in the inner cavity 3, two ends of the communicating pipe 1404 are located in the installation seat 1401, an air pipe 1405 is fixedly connected to the front surface of the lower die 1, and the air pipe 1405 penetrates through the lower die 1 and extends to the inner part of the installation seat 1401.

One side of the pressing block 13 close to the pressing wheel 10 is subjected to chamfering treatment, and the surface of the pressing block 13 is smooth.

The inner bottom wall of the die cavity 2 is provided with uniformly distributed engaging grooves 16, and the top end of the ejector rod 6 is positioned in the engaging grooves 16 and is attached to the inner wall of the engaging grooves 16.

The lower die 1 is matched with the upper die for use, a workpiece is formed after injection molding is performed to the inside of the die cavity 2, when the die cavity 2 needs to be demolded, a user inflates the inside of the mounting seat 1401 through the air pipe 1405, air flow starts to enter the inside of the plurality of groups of mounting seats 1401 due to the action of the plurality of groups of communicating pipes 1404, the piston seat 1402 under the action of air pressure starts to move upwards, the plurality of groups of movable seats 1403 synchronously push the synchronous seat 4 upwards to move upwards, the pressing block 13 and the pulling plate 8 synchronously move upwards at the moment, the pressing block 13 presses the pressing wheel 10, the pressing wheel 10 is stressed to start being positioned, the mounting frame 9 presses the spring 11 to shrink and generate opposite acting force, the knocking block 12 on the mounting frame 9 impacts the inner wall of the inner cavity 3 along with the movement of the synchronous seat 4, so that the inner wall of the die cavity 2 vibrates synchronously, and then the injection molding workpiece and the inner wall of the die cavity 2 are adhered and fall off, the pressing block 13 moves to the top of the pressing wheel 10 along with the continuous upward movement of the synchronizing seat 4, the spring 11 starts to push the mounting frame 9 to reset, the pulling plate 8 starts to pull the limiting plate 7 to move upwards under the limitation of the limiting plate 7, the top plate 5 moves upwards along with the upward movement to push the plurality of groups of ejector rods 6 to synchronously move upwards so as to eject the injection molding workpiece, after the material taking is finished, a user draws out the air flow inside the mounting seat 1401 through the air pipe 1405, the negative pressure piston seat 1402 is formed inside the mounting seat 1401 and starts to pull the movable seat 1403 to move downwards, the synchronizing seat 4 moves downwards along with the downward movement, and the synchronizing seat 4 continues to move downwards until reset after the top plate 5 is adhered with the inner wall of the inner cavity 3.

In this embodiment, the moving direction and distance of the movable seat 1403 can be changed through the driving component 14, and then the movement of the synchronous seat 4 is realized, in the demolding process, the plurality of groups of mounting frames 9 can be pressed and driven by the driving component 14 first, so that the knocking block 12 knocks on the inner wall of the inner cavity 3, the injection molding workpiece and the adhesion part of the inner wall of the mold cavity 2 are separated, the injection molding workpiece is prevented from being difficult to demolded or even damaged due to adhesion during demolding, then the plurality of groups of ejector rods 6 can push the workpiece upwards, and thus the demolding is completed, the operation steps of continuous actions are fewer, and the demolding efficiency is high.

Please refer to fig. 5, wherein: the left side and the right side of the synchronous seat 4 are fixedly connected with sliding strips 15, and the sliding strips 15 are in sliding connection with the inner wall of the inner cavity 3.

In this embodiment, the sliding strip 15 may limit the synchronous seat 4, so that the synchronous seat 4 is always located on the inner wall of the inner cavity 3 to keep stable movement in the vertical direction.

Please refer to fig. 2-4, wherein: the inside of spring 11 is provided with guide post 17, and guide post 17 fixed connection is on the inner wall of inner chamber 3, and mounting bracket 9 sliding connection is on guide post 17.

In this embodiment, the setting of guide post 17 can play the restriction effect to mounting bracket 9 for mounting bracket 9 remains the stable removal of horizontal direction all the time, and guide post 17 can prevent spring 11 atress emergence distortion simultaneously.

The foregoing is a preferred embodiment of the present utility model; the scope of the utility model is not limited in this respect. Any person skilled in the art, within the technical scope of the present disclosure, may apply to the present utility model, and the technical solution and the improvement thereof are all covered by the protection scope of the present utility model.

Claims

1. The utility model provides a quick demoulding mechanism of injection mold, includes bed die (1) and die cavity (2), the top at bed die (1) is seted up to die cavity (2), its characterized in that: an inner cavity (3) is formed in the lower die (1), a synchronous seat (4) is connected to the inner wall of the inner cavity (3) in a sliding manner, a top plate (5) is connected on the inner bottom wall of the inner cavity (3) in a sliding way, the top of the top plate (5) is fixedly connected with push rods (6) which are uniformly distributed, the top end of the ejector rod (6) penetrates through and extends to the inside of the die cavity (2), the top of the top plate (5) is fixedly connected with two limiting plates (7), two pull plates (8) are fixedly connected on the inner wall of the synchronous seat (4), the limiting plate (7) penetrates through the pulling plate (8) and extends to the top of the pulling plate (8), the inner wall of the inner cavity (3) is connected with a mounting rack (9) which is evenly distributed in a sliding way, the mounting frame (9) is rotationally connected with a pressing wheel (10), the mounting frame (9) is fixedly connected with springs (11) which are uniformly distributed, the other end of the spring (11) is fixedly connected with the inner wall of the inner cavity (3), a knocking block (12) is fixedly connected to the mounting frame (9), the inner side of the synchronous seat (4) is fixedly connected with pressing blocks (13) which are uniformly distributed, the pressing block (13) is positioned at the bottom of the pressing wheel (10), and a driving assembly (14) is arranged in the inner cavity (3).

2. The injection mold rapid release mechanism of claim 1, wherein: the driving assembly (14) comprises an installation seat (1401) which is evenly distributed, the installation seat (1401) is fixedly connected to the inner bottom wall of the inner cavity (3), a piston seat (1402) is slidably installed on the inner wall of the installation seat (1401), a movable seat (1403) is fixedly connected to the top of the piston seat (1402), the top of the movable seat (1403) penetrates through the installation seat (1401) and is fixedly connected to the inner wall of the synchronous seat (4), communicating pipes (1404) which are evenly distributed are arranged in the inner portion of the inner cavity (3), two ends of each communicating pipe (1404) are located in the inner portion of the installation seat (1401), an air pipe (1405) is fixedly connected to the front face of the lower die (1), and the air pipe (1405) penetrates through the lower die (1) and extends to the inner portion of the installation seat (1401).

3. The injection mold rapid release mechanism of claim 1, wherein: one side of the pressing block (13) close to the pressing wheel (10) is subjected to chamfering treatment, and the surface of the pressing block (13) is smooth.

4. The injection mold rapid release mechanism of claim 1, wherein: the left side and the right side of the synchronous seat (4) are fixedly connected with sliding strips (15), and the sliding strips (15) are in sliding connection with the inner wall of the inner cavity (3).

5. The injection mold rapid release mechanism of claim 1, wherein: the inner bottom wall of the die cavity (2) is provided with uniformly distributed engaging grooves (16), and the top end of the ejector rod (6) is positioned in the engaging grooves (16) and is attached to the inner wall of the engaging grooves (16).

6. The injection mold rapid release mechanism of claim 1, wherein: the inside of spring (11) is provided with guide post (17), guide post (17) fixed connection is on the inner wall of inner chamber (3), mounting bracket (9) sliding connection is on guide post (17).