Injection mold for sealing ring

Abstract

The utility model discloses an injection mold for a sealing ring, which comprises a base, an injection molding static mold assembly and an injection molding movable mold assembly, the top of the base is fixedly connected with the injection molding movable mold assembly through a screw, and the top of the injection molding movable mold assembly is connected with the injection molding static mold assembly in a matched mode. The injection molding movable mold assembly comprises supporting frames, a movable mold fixing plate and a lower mold core, the supporting frames are fixedly mounted at the two ends of the surface of the base, the movable mold fixing plate is fixedly mounted at the tops of the two supporting frames, and a lower mold mounting position matched with the lower mold core is formed in the middle of the surface of the movable mold fixing plate; and a lower die core is mounted in the lower die mounting position. The lower mold mounting position is arranged in the movable mold fixing plate, the fixing hole is formed in the outer wall of the movable mold fixing plate, the lower mold core mounted in the lower mold mounting position can be fixed through the fixing hole, meanwhile, the lower mold core can be conveniently replaced subsequently according to actual requirements, and the practicability is better.

Description

Technical Field

[0001] This utility model relates to the field of sealing ring production technology, specifically to an injection mold for sealing rings. Background Technology

[0002] Injection molding is one of the most efficient production methods for plastic or rubber products, and an important method for molding plastics and rubber, primarily applicable to the molding of thermoplastics. The parting surface is the separable contact surface on the mold used to remove the plastic part or the solidified material from the gating system. The design of the injection mold parting surface directly affects the quality of the plastic part, the mold structure, and the ease of operation, and is one of the key factors in the success or failure of injection mold design.

[0003] However, the existing injection mold core cannot be replaced after it is opened, making it unable to handle multiple batches of sealing ring injection work, and the number of sealing rings formed in a single batch is relatively small, thus reducing the production efficiency of sealing rings. Summary of the Invention

[0004] The purpose of this utility model is to provide an injection mold for sealing rings, so as to solve the problems mentioned in the background art, that the internal mold core of the existing injection mold cannot be replaced after the mold is opened, it cannot cope with multiple batches of sealing ring injection work, and the number of sealing rings formed in a single batch is small, thereby reducing the production efficiency of sealing rings.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an injection mold for a sealing ring, comprising a base, a static injection mold assembly, and a moving injection mold assembly. The top of the base is fixedly connected to the moving injection mold assembly by screws. The top of the moving injection mold assembly is fitted with the static injection mold assembly. The moving injection mold assembly includes a support frame, a moving mold fixing plate, and a lower mold core. The support frame is fixedly installed at both ends of the base surface. The two support frames are fixedly installed on the top of the moving mold fixing plate. A lower mold mounting position adapted to the lower mold core is opened in the middle of the surface of the moving mold fixing plate. The lower mold core is installed in the lower mold mounting position.

[0006] Preferably, the outer wall of the moving mold fixing plate is provided with a fixing hole at the position opposite to the lower mold mounting position, and a screw for fixing the lower mold core is connected in the fixing hole.

[0007] Preferably, a movable cavity is formed between the two support frames, and a mounting plate is provided in the movable cavity. Guide columns are fixedly connected around the surface of the mounting plate, and a guide hole is opened on the bottom surface of the moving mold fixing plate at the position opposite to the guide column. A guide column is movably connected in the guide hole.

[0008] Preferably, a spring is fitted on the guide post, and the top and bottom of the spring abut against the moving mold fixing plate and the mounting plate, respectively.

[0009] Preferably, a plurality of ejector pins are fixedly connected to the center of the top surface of the mounting plate, and the top of the ejector pins is movable within the lower mold core.

[0010] Preferably, the injection molding stationary mold assembly includes a cover plate, a stationary mold fixing plate, and an injection assembly. The stationary mold fixing plate is disposed on top of the moving mold fixing plate. A cover plate is installed on the top of the stationary mold fixing plate. An injection assembly is disposed between the stationary mold fixing plate and the cover plate. The top of the injection assembly is connected to the cover plate, and the bottom of the injection assembly passes through the stationary mold fixing plate and cooperates with the lower mold core.

[0011] Preferably, the injection assembly includes an upper mold core, a parting end plate, and an injection end head. The upper mold core is fixedly installed on the bottom surface of the stationary mold fixing plate, the parting end plate is installed on the stationary mold fixing plate, the upper mold core and the parting end plate are connected by multiple connecting pipes, and the injection end head is fixedly connected to the top of the parting end plate.

[0012] Preferably, the cover plate has an opening in the middle of its surface, and the inner wall of the opening is connected to the injection end.

[0013] Preferably, the outer wall of the stationary mold fixing plate is provided with multiple liquid inlets, and the liquid inlets are connected to the upper mold core.

[0014] Beneficial effects

[0015] Compared with existing technologies, the beneficial effects of this utility model are as follows:

[0016] This utility model has a lower mold mounting position inside the moving mold fixing plate and a fixing hole on the outer wall of the moving mold fixing plate. The lower mold core installed in the lower mold mounting position can be fixed through the fixing hole, which also facilitates the replacement of the lower mold core according to actual needs, thus improving its practicality. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the injection molding moving mold assembly structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the injection molding static mold assembly structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the injection molding component structure of this utility model.

[0021] 1. Base; 2. Injection molding moving mold assembly; 3. Injection molding stationary mold assembly; 11. Movable cavity; 12. Mounting plate;

[0022] 13. Guide pillar; 14. Spring; 15. Ejector pin; 21. Support frame; 22. Moving mold fixing plate;

[0023] 23. Lower mold mounting position; 24. Lower mold core; 25. Fixing hole; 31. Static mold fixing plate; 32. Cover plate;

[0024] 33. Infeed assembly; 221. Guide hole; 311. Liquid inlet; 321. Through port; 331. Dispensing end plate;

[0025] 332. Upper mold core; 333. Injection end; Detailed Implementation

[0026] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "front," "rear," "inner," "outer," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] like Figure 1-4This is a schematic diagram of the structure of an injection mold for a sealing ring according to a preferred embodiment of the present invention. In this embodiment, the injection mold for a sealing ring includes a base 1, a stationary injection mold assembly 3, and a moving injection mold assembly 2. The moving injection mold assembly 2 is fixedly connected to the top of the base 1 by screws. The stationary injection mold assembly 3 is fitted to the top of the moving injection mold assembly 2. The moving injection mold assembly 2 includes a support frame 21, a moving mold fixing plate 22, and a lower mold core 24. The support frame 21 is fixedly installed at both ends of the surface of the base 1. The moving mold fixing plate 22 is fixedly installed on the top of the two support frames 21. The moving mold fixing plate 22 is located on the surface of the moving mold fixing plate 22. The lower mold core 24 is fitted with a lower mold mounting position 23. The lower mold core 24 is installed in the lower mold mounting position 23. A fixing hole 25 is provided on the outer wall of the moving mold fixing plate 22 at a position opposite to the lower mold mounting position 23. A screw for fixing the lower mold core 24 is connected in the fixing hole 25. This utility model has a lower mold mounting position 23 in the moving mold fixing plate 22 and a fixing hole 25 on the outer wall of the moving mold fixing plate 22. The lower mold core 24 installed in the lower mold mounting position 23 can be fixed through the fixing hole 25. It is also convenient to replace the lower mold core 24 according to actual needs, which improves its practicality.

[0029] In this embodiment, a movable cavity 11 is formed between the two support frames 21. A mounting plate 12 is provided in the movable cavity 11, and guide posts 13 are fixedly connected around the surface of the mounting plate 12. A guide hole 221 is opened on the bottom surface of the moving mold fixing plate 22 at the position opposite to the guide post 13. The guide post 13 is movably connected in the guide hole 221. With this structural design, the bottom center of the mounting plate 12 passes through the base and is connected to an external driving device. The moving plate 12 moves up and down in the movable cavity 11 through the output of the driving device. A spring 14 is fitted on the guide post 13, and the top and bottom of the spring 14 abut against the moving mold fixing plate 22 and the mounting plate 12 respectively, so as to achieve the effect of quickly resetting the mounting plate 12 after it moves upward through the output of the driving device.

[0030] In this embodiment, a plurality of ejector pins 15 are fixedly connected to the middle of the top surface of the mounting plate 12, and the top of the ejector pins 15 moves within the lower mold core 24, thereby ejecting the pre-molded sealing ring from the lower mold core 24.

[0031] In this embodiment, the injection molding stationary mold assembly 3 includes a cover plate 32, a stationary mold fixing plate 31, and an injection assembly 33. The stationary mold fixing plate 31 is disposed on the top of the moving mold fixing plate 22. The cover plate 32 is installed on the top of the stationary mold fixing plate 31. The injection assembly 33 is disposed between the stationary mold fixing plate 31 and the cover plate 32. The top of the injection assembly 33 is connected to the cover plate 32. The bottom of the injection assembly 33 passes through the stationary mold fixing plate 31 and cooperates with the lower mold core 24. The injection assembly 33 injects the molding liquid into the lower mold core 24.

[0032] In this embodiment, the injection assembly 33 includes an upper mold core 332, a dispensing end plate 331, and an injection nozzle 333. The upper mold core 332 is fixedly installed on the bottom surface of the stationary mold fixing plate 31, and the dispensing end plate 331 is installed on the stationary mold fixing plate 31. The upper mold core 332 and the dispensing end plate 331 are connected by multiple connecting pipes. The injection nozzle 333 is fixedly connected to the top of the dispensing end plate 331. After the injection liquid reaches the dispensing end plate 331 through the injection nozzle 333, it is diverted to the upper mold core through the connecting pipes for uniform injection, thus avoiding uneven injection of the sealing ring.

[0033] In this embodiment, the cover plate 32 has an opening 321 in the middle of its surface, and the inner wall of the opening 321 is connected to the plastic injection end 333, and is connected to the plastic equipment through the opening 321.

[0034] In this embodiment, the outer wall of the stationary mold fixing plate 31 is provided with multiple liquid inlets 311, which are connected to the upper mold core 332. This structural design solves the cooling problem during the injection molding process.

[0035] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.

Claims

1. An injection mold for a sealing ring, comprising a base (1), a stationary injection mold assembly (3), and a moving injection mold assembly (2), wherein the moving injection mold assembly (2) is fixedly connected to the top of the base (1) by screws, and the stationary injection mold assembly (3) is fitted to the top of the moving injection mold assembly (2), characterized in that: The injection molding moving mold assembly (2) includes a support frame (21), a moving mold fixing plate (22), and a lower mold core (24). The support frame (21) is fixedly installed at both ends of the surface of the base (1). The moving mold fixing plate (22) is fixedly installed on the top of the two support frames (21). A lower mold mounting position (23) adapted to the lower mold core (24) is opened in the middle of the surface of the moving mold fixing plate (22). The lower mold core (24) is installed in the lower mold mounting position (23).

2. The injection mold for a sealing ring according to claim 1, characterized in that: The outer wall of the moving mold fixing plate (22) is provided with a fixing hole (25) at the position opposite to the lower mold mounting position (23), and a screw for fixing the lower mold core (24) is connected in the fixing hole (25).

3. The injection mold for a sealing ring according to claim 1, characterized in that: A movable cavity (11) is formed between the two support frames (21). An installation plate (12) is provided in the movable cavity (11). Guide columns (13) are fixedly connected around the surface of the installation plate (12). A guide hole (221) is opened on the bottom surface of the moving mold fixing plate (22) at the position opposite to the guide column (13). The guide column (13) is movably connected in the guide hole (221).

4. The injection mold for a sealing ring according to claim 3, characterized in that: A spring (14) is fitted on the guide post (13), and the top and bottom of the spring (14) abut against the moving mold fixing plate (22) and the mounting plate (12) respectively.

5. The injection mold for a sealing ring according to claim 4, characterized in that: Multiple ejector pins (15) are fixedly connected to the middle of the top surface of the mounting plate (12), and the top of the ejector pins (15) is movable inside the lower mold core (24).

6. The injection mold for a sealing ring according to claim 1, characterized in that: The injection molding stationary mold assembly (3) includes a cover plate (32), a stationary mold fixing plate (31), and an injection assembly (33). The stationary mold fixing plate (31) is located on top of the moving mold fixing plate (22). The cover plate (32) is installed on the top of the stationary mold fixing plate (31). The injection assembly (33) is located between the stationary mold fixing plate (31) and the cover plate (32). The top of the injection assembly (33) is connected to the cover plate (32). The bottom of the injection assembly (33) passes through the stationary mold fixing plate (31) and cooperates with the lower mold core (24).

7. The injection mold for a sealing ring according to claim 6, characterized in that: The injection assembly (33) includes an upper mold core (332), a parting end plate (331), and an injection end (333). The upper mold core (332) is fixedly installed on the bottom surface of the stationary mold fixing plate (31). The parting end plate (331) is installed on the stationary mold fixing plate (31). The upper mold core (332) and the parting end plate (331) are connected by multiple connecting pipes. The injection end (333) is fixedly connected to the top of the parting end plate (331).

8. The injection mold for a sealing ring according to claim 6, characterized in that: The cover plate (32) has an opening (321) in the middle of its surface, and the inner wall of the opening (321) is connected to the injection end (333).

9. The injection mold for a sealing ring according to claim 7, characterized in that: The outer wall of the static mold fixing plate (31) is provided with multiple liquid inlets (311), and the liquid inlets (311) are connected to the upper mold core (332).

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