Injection mold with facilitated ejection

Abstract

The utility model discloses a kind of injection mold facilitating ejection, comprising: supporting guide plate, the beneficial effects of the utility model are: by setting fixed top column, side fixed plate, top seat and side baffle, when the mold and injection mold between fixed mode opens mold movement, needle plate drives the fixed support plate side limit baffle seat of one side top, the position of fixed support plate and limit baffle seat is fixed, needle plate, side fixed plate and each one ejector pin are moved by fixed top column, the molding part in dynamic mode is ejected by one ejector pin, by setting multiple second ejector pins in injection mold, the molding part in dynamic mode and injection mold is ejected by second ejector pin, avoid molding part to be adhered in injection mold, by setting side baffle, top seat and fixed top column, when the mold, injection mold is closed, top seat drives the side of side baffle, top seat drives fixed top column, side fixed plate and needle plate reset, avoid the situation that needle plate and each one ejector pin do not reset.

Description

Technical Field

[0001] This utility model relates to the field of injection mold technology, specifically to an injection mold that is easy to eject. Background Technology

[0002] Injection molds are the core equipment in the injection molding process. They are used to inject molten plastic material into the mold cavity under high pressure, and after cooling and solidification, plastic products with specific shapes, sizes and properties are obtained. The demolding process is a critical and problematic step. Demolding refers to the process of removing the cooled and solidified injection molded product from the mold. If the demolding mechanism is not designed properly or is operated improperly, it can easily lead to product deformation, damage or sticking to the mold, thereby affecting product quality and production efficiency. However, the demolding mechanism of existing injection molds needs to be accurately reset after demolding to prepare for the next injection. However, some demolding mechanisms have unstable reset problems, which affect the continuity and stability of injection molding. Utility Model Content

[0003] The purpose of this invention is to provide an injection mold that facilitates ejection, in order to solve the problem mentioned in the background art that the demolding mechanism of existing injection molds needs to be accurately reset after demolding to prepare for the next injection, but some demolding mechanisms have unstable reset, which affects the continuity and stability of injection.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for easy ejection, comprising:

[0005] Support guide plate;

[0006] A moving mold is slidably disposed on one side of a support guide plate, and a fixed injection mold that cooperates with the moving mold is disposed on one side of the support guide plate;

[0007] A needle plate is slidably disposed inside the moving mold. A plurality of ejector pins are symmetrically arranged on one side of the needle plate, and the ejector pins are slidably connected to the moving mold.

[0008] Side fixing plates are symmetrically arranged on the outside of the needle plate. A fixing top post is provided on one side of the side fixing plate, and a top seat is provided on the side of the fixing top post away from the side fixing plate.

[0009] Side baffles are symmetrically fixed to both sides of the injection mold, and the side baffles cooperate with the top seat;

[0010] Ejector pin number two is symmetrically slidably positioned inside the injection mold;

[0011] The top post is slidably disposed inside the moving mold, and one end of the top post is fixedly connected to the pin plate.

[0012] As a preferred embodiment of this utility model, it further includes a fixed support plate, which is fixedly connected to one side of the support guide plate. A second cylinder is symmetrically installed on one side of the fixed support plate. A side connecting seat is symmetrically fixed to the outer side of the moving mold. The output end of the second cylinder is fixedly connected to the side connecting seat. A third limiting slide rod is symmetrically arranged on one side of the side connecting seat. The third limiting slide rod is slidably connected to the fixed support plate. A limiting stop that cooperates with the top column is installed on one side of the fixed support plate by bolts.

[0013] As a preferred embodiment of this utility model: an outer guide frame is fixedly connected to the outer side of the fixed top column, and a side guide frame is symmetrically fixedly connected to the outer side of the moving mold. The outer guide frame is slidably connected to the side guide frame, and a first limiting slide rod is symmetrically slidably arranged inside the outer guide frame. The first limiting slide rod is fixedly connected to the side guide frame.

[0014] As a preferred embodiment of this utility model: a side fixing frame is symmetrically fixed to one side of the injection mold, an ejector frame is slidably arranged on the inner side of the side fixing frame, one end of the second ejector pin is fixedly connected to the ejector frame, a first cylinder is installed on one side of the side fixing frame, the output end of the first cylinder is fixedly connected to the ejector frame, and a second limiting slide rod is symmetrically fixed to one side of the ejector frame, and the second limiting slide rod is slidably connected to the side fixing frame.

[0015] As a preferred embodiment of this utility model: a guide rod is slidably arranged inside the needle plate, the guide rod is fixedly connected to the moving mold, and a return spring is sleeved on the outside of the guide rod.

[0016] As a preferred embodiment of this utility model: a guide post is symmetrically fixed to one side of the moving mold, and a guide sleeve that cooperates with the guide post is symmetrically fixed to the inside of the injection mold.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows: By setting a fixed top post, a side fixing plate, a top seat, and a side baffle, this utility model realizes that when the moving mold and the injection mold move during mold opening, the pin plate drives the top post on one side to push the limiting stop on one side of the fixed support plate. The positions of the fixed support plate and the limiting stop are fixed. The top post drives the pin plate, the side fixing plate, and each No. 1 ejector pin to move. The No. 1 ejector pin ejects the molded part in the moving mold. By setting multiple No. 2 ejector pins in the injection mold, the No. 2 ejector pins eject the molded part in both the moving mold and the injection mold, preventing the molded part from sticking to the injection mold. By setting the side baffle, the top seat, and the fixed top post, when the moving mold and the injection mold are closed, the top seat pushes one side of the side baffle. The top seat drives the fixed top post, the side fixing plate, and the pin plate to reset, preventing the pin plate and each No. 1 ejector pin from not resetting, which would affect the stability of injection molding. Attached Figure Description

[0018] Figure 1This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a schematic diagram of the needle plate and the No. 1 top-out needle structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the external moving mold structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the internal structure of the moving mold of this utility model.

[0023] In the diagram: 1. Support guide plate; 2. Moving mold; 3. Injection mold; 4. Side baffle; 5. Needle plate; 6. Guide rod; 7. Return spring; 8. Ejector pin No. 1; 9. Side fixing plate; 10. Fixed ejector pin; 11. Outer guide frame; 12. Side guide frame; 13. Limit stop; 14. Limit slide bar No. 1; 15. Ejector seat; 16. Side fixing frame; 17. Ejector frame; 18. Cylinder No. 1; 19. Limit slide bar No. 2; 20. Ejector pin; 21. Guide sleeve; 22. Side connecting seat; 23. Fixed support plate; 24. Cylinder No. 2; 25. Limit slide bar No. 3; 26. Guide post; 27. Ejector pin No. 2. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1 to 5 This utility model provides a technical solution: an injection mold for easy ejection, comprising: a support guide plate 1; a moving mold 2 slidably disposed on one side of the support guide plate 1, and a fixed injection mold 3 cooperating with the moving mold 2 disposed on one side of the support guide plate 1; a pin plate 5 slidably disposed on the inner side of the moving mold 2, and a plurality of first ejector pins 8 symmetrically fixed to one side of the pin plate 5, the first ejector pins 8 being slidably connected to the moving mold 2; a side fixing plate 9 symmetrically fixed to the outer side of the pin plate 5, and a fixed ejector post 10 fixed to one side of the side fixing plate 9, and a top seat 15 disposed on the side of the fixed ejector post 10 away from the side fixing plate 9; side baffles 4 symmetrically fixed to both sides of the fixed injection mold 3, the side baffles 4 cooperating with the top seat 15; second ejector pins 27 symmetrically slidably disposed inside the fixed injection mold 3; and ejector posts 20 slidably disposed inside the moving mold 2, one end of the ejector post 20 being fixedly connected to the pin plate 5.

[0026] It should be noted that in this embodiment, the device is centrally controlled by an external controller, and powered by an external power supply. The output of cylinder 24 drives the side connecting seat 22 and the moving mold 2 to move and adjust. The moving mold 2 slides on the support guide plate 1. When demolding is required after injection molding in the moving mold 2 and the injection mold 3, the moving mold 2 moves away from the injection mold 3. At the same time, when the mold is opened, the output of cylinder 18 drives the ejector frame 17 to move. The ejector frame 17 drives each of the second ejector pins 27 on one side to move, avoiding the molded injection part from sticking to the injection mold 3 and causing damage to the injection part. When the moving mold 2 moves away from the injection mold 3, the moving mold 2 drives the pin plate 5 and the ejector pin 20 on one side to move. The ejector pin 20 pushes against the side of the fixed support plate 23. The limit stop 13 and the ejector pin 20 move and push the needle plate 5 to move. The needle plate 5 drives the first ejector pins 8 on one side to move. The first ejector pins 8 assist in ejecting the molded parts in the moving mold 2. When the needle plate 5 moves, it slides on the outside of the guide rod 6. The needle plate 5 pushes the return spring 7. The needle plate 5 drives the side fixing plate 9, the fixed ejector pin 10 and the top seat 15 to move. When the moving mold 2 and the injection mold 3 are re-closed, the return spring 7 drives the needle plate 5 and the first ejector pin 8 to return to their original position. The top seat 15 on one side of the fixed ejector pin 10 pushes the side baffles 4 on both sides of the injection mold 3. The side baffles 4 push the top seat 15, the fixed ejector pin 10 and the side fixing plate 9 to assist in the return. This avoids the return spring 7 and the needle plate 5 from failing to return, which would affect the overall stability and safety of the mold.

[0027] In one embodiment, such as Figures 1 to 5 As shown, it also includes a fixed support plate 23, which is fixedly connected to one side of the support guide plate 1. A second cylinder 24 is symmetrically installed on one side of the fixed support plate 23 by bolts. A side connecting seat 22 is symmetrically fixed to the outside of the moving mold 2. The output end of the second cylinder 24 is fixedly connected to the side connecting seat 22. A third limiting slide rod 25 is symmetrically fixed to one side of the side connecting seat 22. The third limiting slide rod 25 is slidably connected to the fixed support plate 23. A limiting stop 13 that cooperates with the top column 20 is installed on one side of the fixed support plate 23 by bolts.

[0028] It should be noted that in this embodiment, the limiting stop 13 blocks one end of the top post 20. By blocking the top post 20 with the limiting stop 13, when the moving mold 2 continues to move, the top post 20 pushes against the needle plate 5 inside the moving mold 2. The needle plate 5 drives each of the first ejector needles 8 on one side to move, and ejects the molded injection part inside the moving mold 2.

[0029] In one embodiment, such as Figures 1 to 5As shown, an outer guide frame 11 is fixedly connected to the outer side of the fixed top column 10, and a side guide frame 12 is symmetrically fixedly connected to the outer side of the moving mold 2. The outer guide frame 11 and the side guide frame 12 are slidably connected. A first limiting slide rod 14 is symmetrically slidably arranged inside the outer guide frame 11, and the first limiting slide rod 14 is fixedly connected to the side guide frame 12.

[0030] It should be noted that in this embodiment, the outer guide frame 11 and the side guide frame 12 are limited to slide, the outer guide frame 11 slides outside the first limiting slide rod 14, and the first limiting slide rod 14 is fixed to the side guide frame 12, thereby improving the movement stability of the outer guide frame 11, the fixed top column 10 and the top seat 15.

[0031] In one embodiment, such as Figures 1 to 5 As shown, a side fixing frame 16 is symmetrically fixed to one side of the injection mold 3. An ejector frame 17 is slidably arranged on the inner side of the side fixing frame 16. One end of the second ejector pin 27 is fixedly connected to the ejector frame 17. A first cylinder 18 is installed on one side of the side fixing frame 16. The output end of the first cylinder 18 is fixedly connected to the ejector frame 17. A second limiting slide rod 19 is symmetrically fixed to one side of the ejector frame 17. The second limiting slide rod 19 is slidably connected to the side fixing frame 16.

[0032] It should be noted that in this embodiment, the output end of the first cylinder 18 drives the ejector frame 17 and each of the second ejector pins 27 on one side to move, so as to avoid the situation where the molded injection part sticks to the injection mold 3.

[0033] In one embodiment, such as Figures 1 to 5 As shown, a guide rod 6 is slidably arranged inside the needle plate 5. The guide rod 6 is fixedly connected to the moving mold 2, and a return spring 7 is sleeved on the outside of the guide rod 6.

[0034] It should be noted that in this embodiment, the needle plate 5 is limited to sliding on the outside of the guide rod 6, and the needle plate 5 is reset by the reset spring 7.

[0035] In one embodiment, such as Figures 1 to 5 As shown, guide posts 26 are symmetrically fixed to one side of the moving mold 2, and guide sleeves 21 that cooperate with guide posts 26 are symmetrically fixed to the inside of the injection mold 3.

[0036] It should be noted that in this embodiment, the guide post 26 and the guide sleeve 21 cooperate to improve the mold closing stability of the moving mold 2 and the injection mold 3.

[0037] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0038] Furthermore, the terms "first," "second," "third," and "fourth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "third," or "fourth" may explicitly or implicitly include at least one of those features.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An injection mold for easy ejection, characterized in that, include: Support guide plate (1); The moving mold (2) is slidably disposed on one side of the support guide plate (1), and the support guide plate (1) is provided with an injection mold (3) that cooperates with the moving mold (2) on one side; The needle plate (5) is slidably disposed on the inner side of the moving mold (2). A plurality of first ejector pins (8) are symmetrically disposed on one side of the needle plate (5). The first ejector pins (8) are slidably connected to the moving mold (2). Side fixing plate (9) is symmetrically arranged on the outside of needle plate (5). A fixing top post (10) is provided on one side of the side fixing plate (9). A top seat (15) is provided on the side of the fixing top post (10) away from the side fixing plate (9). Side baffles (4) are symmetrically fixed on both sides of the injection mold (3), and the side baffles (4) cooperate with the top seat (15); Ejector pin No. 2 (27) is symmetrically slidably disposed inside the injection mold (3); The top post (20) is slidably disposed inside the moving mold (2), and one end of the top post (20) is fixedly connected to the needle plate (5).

2. The injection mold for easy ejection according to claim 1, characterized in that: It also includes a fixed support plate (23), which is fixedly connected to one side of the support guide plate (1). A second cylinder (24) is symmetrically installed on one side of the fixed support plate (23). A side connecting seat (22) is symmetrically fixed to the outside of the moving mold (2). The output end of the second cylinder (24) is fixedly connected to the side connecting seat (22). A third limiting slide rod (25) is symmetrically arranged on one side of the side connecting seat (22). The third limiting slide rod (25) is slidably connected to the fixed support plate (23). A limiting stop (13) that cooperates with the top column (20) is installed on one side of the fixed support plate (23) by bolts.

3. The injection mold for easy ejection according to claim 1, characterized in that: An outer guide frame (11) is fixedly connected to the outside of the fixed top column (10), and a side guide frame (12) is symmetrically fixedly connected to the outside of the moving mold (2). The outer guide frame (11) and the side guide frame (12) are slidably connected. A first limiting slide rod (14) is symmetrically slidably arranged inside the outer guide frame (11), and the first limiting slide rod (14) is fixedly connected to the side guide frame (12).

4. The injection mold for easy ejection according to claim 1, characterized in that: A side fixing frame (16) is symmetrically fixed to one side of the injection mold (3). An ejector frame (17) is slidably arranged on the inner side of the side fixing frame (16). One end of the second ejector pin (27) is fixedly connected to the ejector frame (17). A first cylinder (18) is installed on one side of the side fixing frame (16). The output end of the first cylinder (18) is fixedly connected to the ejector frame (17). A second limiting slide rod (19) is symmetrically fixed to one side of the ejector frame (17). The second limiting slide rod (19) is slidably connected to the side fixing frame (16).

5. The injection mold for easy ejection according to claim 1, characterized in that: The needle plate (5) is slidably provided with a guide rod (6), which is fixedly connected to the moving mold (2), and a return spring (7) is sleeved on the outside of the guide rod (6).

6. The injection mold for easy ejection according to claim 1, characterized in that: The moving mold (2) is symmetrically fixed to one side with guide posts (26), and the injection mold (3) is symmetrically fixed to the inside with guide sleeves (21) that cooperate with the guide posts (26).

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