An O-ring injection mold

By preheating the material in the mold and controlling the mold temperature, the molding quality problem caused by temperature differences in O-ring production was solved, achieving efficient O-ring molding and cooling effects.

CN224334838UActive Publication Date: 2026-06-09DONG GUAN YA FENG DIAN NAO LING PEI JIAN YOU XIAN GONG SI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONG GUAN YA FENG DIAN NAO LING PEI JIAN YOU XIAN GONG SI
Filing Date
2025-02-11
Publication Date
2026-06-09

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    Figure CN224334838U_ABST
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Abstract

This utility model relates to the field of computer component technology, and more particularly to an O-ring injection mold. The technical solution includes: a processing chassis, a mold body, a hopper, and an injection tube. The mold body is mounted on the top surface of the processing chassis; an electric heating element and a coil are mounted on the inner wall of the mold body; a third drive mechanism is mounted on the front end face of the mold body, and blades are provided on the output shaft of the third drive mechanism; a first heater is mounted on the outer surface of the injection tube; the first drive mechanism is mounted on the top surface of the injection tube, and a screw is provided on the output shaft of the first drive mechanism; a second heater is fitted to the outer surface of the hopper, and a feed pipe is embedded and fixed in the hopper; a second drive mechanism is mounted on the hopper, and a stirring rod is provided on the output shaft of the second drive mechanism. This utility model satisfies the requirements of O-ring injection molding for computer components, avoiding excessive temperature differences between the mold and the material during molding, which could affect processing.
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Description

Technical Field

[0001] This utility model relates to the field of computer parts technology, specifically to an O-ring injection mold. Background Technology

[0002] Injection molding, also known as injection molding, is a molding method that combines injection and molding. The advantages of injection molding include high production speed and efficiency, automated operation, a wide variety of designs and shapes (from simple to complex), and sizes ranging from large to small. It also produces dimensionally accurate products, facilitates product updates and replacements, and can create complex shapes. Injection molding is suitable for mass production and molding processes involving complex shapes.

[0003] In the production and processing of computer component O-rings, injection molds can be used for production and molding. However, during production and processing, since the material needs to be directly heated before injection, the low temperature inside the mold will cause the material that enters first to form too quickly, affecting the quality of the product after injection. Therefore, the mold needs to be improved. Utility Model Content

[0004] The purpose of this invention is to provide an O-ring injection mold to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an O-ring injection mold, comprising a processing housing, a mold body, a hopper, and an injection tube.

[0006] The mold body is mounted on the top surface of the processing machine box;

[0007] The inner wall of the mold body is equipped with heating elements and coils;

[0008] The front end face of the mold body is equipped with a drive mechanism three, and the output shaft of the drive mechanism three is provided with blades.

[0009] A heater is installed on the outer surface of the injection tube;

[0010] The top surface of the injection tube is equipped with a drive mechanism, and a screw is provided on the output shaft of the drive mechanism.

[0011] A heater is fitted to the outer surface of the hopper, and a feed pipe is embedded and fixed on the hopper.

[0012] The hopper is equipped with a second drive mechanism, and a stirring rod is provided on the output shaft of the second drive mechanism.

[0013] Preferably, a filling pipe is embedded and fixed to the front end face of the mold body. The filling pipe is connected to the mold body, and a valve is installed on the filling pipe via a flange. By opening the valve on the filling pipe, heat transfer oil can be injected into the cavity of the mold body for storage.

[0014] Preferably, a second hydraulic rod is installed inside the processing machine housing, and a ejector module is provided on the output shaft of the second hydraulic rod, which is located inside the mold body. By placing the ejector module inside the mold body, after the O-ring is formed inside the mold body, the operator can open the second hydraulic rod to push the ejector module to move within the mold body to eject the formed O-ring.

[0015] Preferably, one end of the coil is embedded with a water inlet pipe, and the other end of the coil opposite to the water inlet pipe is embedded with a water outlet pipe. Cooling water can be drawn into the coil via an external water pump or other mechanism connected to the water inlet pipe, and the water circulating within the coil is discharged through the water outlet pipe.

[0016] Preferably, a support block is welded to the bottom surface of the machining housing, and a support plate is mounted on the bottom surface of the support block. The machining housing can be installed and supported by the cooperation of the support block and the support plate.

[0017] Preferably, a hydraulic rod is mounted on the processing machine housing, and a mounting bracket is provided on the output shaft of the hydraulic rod, which is then mounted on the injection tube. The mounting bracket on the output shaft of the hydraulic rod allows the injection tube to move up and down when the hydraulic rod is activated.

[0018] Preferably, a connecting pipe is embedded and fixed at the bottom end face of the hopper, and the bottom end face of the connecting pipe is embedded and fixed inside the injection tube. A valve is installed on the connecting pipe via a flange. By embedding and fixing the bottom end face of the connecting pipe inside the injection tube, the material received by the hopper can be discharged into the injection tube by opening the valve on the connecting pipe.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0020] 1. This utility model, by setting up a hopper, allows workers to receive the material to be molded through the feed pipe when using an injection mold to injection mold O-rings for computer components. After the material enters the hopper, the worker can activate the second drive mechanism to drive the stirring rod to stir the incoming material. During the stirring process, the worker can also turn on the second heater to preheat the material in the hopper. After preheating, the worker can open the valve on the connecting pipe to inject the material into the injection tube. After the material enters the injection tube, the first drive mechanism drives the screw to stir the material, while the first heater heats and melts the material. After the material is completely melted, the first hydraulic rod will contact the mold body and inject the material into the mold body, thereby realizing the molding of the O-ring. In this way, the material can be preheated before being fully heated, avoiding the clumping phenomenon that may occur when the material is directly heated and melted, thus ensuring the processing effect.

[0021] 2. This utility model, by setting up a mold body, allows operators to inject heat-conducting oil into the mold body through an injection pipe during the injection molding of O-rings for computer components. To prevent a large temperature difference between the mold body and the material, the operator can then heat the oil using an electric heating element. During heating, the operator can also activate the drive mechanism to rotate the blades. The rotating blades drive the flow of the heat-conducting oil, achieving flow-based heating. This preheating method ensures the mold body is heated to a temperature matching the material's molding requirements, preventing excessive temperature differences from affecting the molding process. Furthermore, after molding, the operator can open the water outlet pipe and connect an external water pump to draw cooling water into the coil. This allows the cooling water to exchange heat with the heat-conducting oil, cooling the interior of the mold body. The cooling process also cools the molded O-ring, thus meeting the molding and cooling requirements of the O-ring. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0023] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0024] Figure 3 This is a cross-sectional view of the mold body of this utility model;

[0025] Figure 4 This is a top view of the mold body structure of this utility model;

[0026] Figure 5 This is a cross-sectional view of the injection tube and hopper of this utility model.

[0027] In the diagram: 1. Support block; 2. Processing machine box; 3. Injection pipe; 4. Support plate; 5. Mold body; 6. Heater 1; 7. Hydraulic rod 1; 8. Mounting frame; 9. Drive mechanism 1; 10. Drive mechanism 2; 11. Feed pipe; 12. Hopper; 13. Heater 2; 14. Connecting pipe; 15. Injection pipe; 16. Demolding module; 17. Drive mechanism 3; 18. Water inlet pipe; 19. Water outlet pipe; 20. Electric heating element; 21. Coil; 22. Hydraulic rod 2; 23. Blade; 24. Screw; 25. Stirring rod. Detailed Implementation

[0028] 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.

[0029] Example 1

[0030] like Figures 1-5 As shown, the present invention proposes an O-ring injection mold, comprising a processing housing 2, a mold body 5, a hopper 12, and an injection tube 15.

[0031] The mold body 5 is mounted on the top surface of the processing machine housing 2;

[0032] The inner wall of the mold body 5 is equipped with an electric heating tube 20 and a coil 21;

[0033] A drive mechanism 317 is installed on the front end face of the mold body 5, and a blade 23 is provided on the output shaft of the drive mechanism 317.

[0034] A heater 6 is mounted on the outer surface of the injection tube 15;

[0035] A drive mechanism 9 is mounted on the top surface of the injection tube 15, and a screw 24 is provided on the output shaft of the drive mechanism 9.

[0036] A heater 13 is fitted to the outer surface of the hopper 12, and a feed pipe 11 is embedded and fixed on the hopper 12.

[0037] A drive mechanism 2 10 is installed on the hopper 12, and a stirring rod 25 is provided on the output shaft of the drive mechanism 2 10.

[0038] Furthermore, as is well known to those skilled in the art, the provision of drive mechanisms three 17, one 9, and two 10 is commonplace. Drive mechanisms three 17, one 9, and two 10 can all be powered and controlled by an external power supply and control switch, which are all conventional methods or common knowledge and will not be elaborated further here. Those skilled in the art can choose any configuration according to their needs or convenience. Drive mechanisms three 17, one 9, and two 10 respectively drive the blade 23, screw 24, and stirring rod 25 to rotate.

[0039] A filling pipe 3 is embedded and fixed on the front end face of the mold body 5. The filling pipe 3 is connected to the mold body 5, and a valve is installed on the filling pipe 3 through a flange. By opening the valve on the filling pipe 3, heat transfer oil can be injected into the cavity of the mold body 5 for storage.

[0040] A support block 1 is welded to the bottom surface of the processing machine housing 2, and a support plate 4 is installed on the bottom surface of the support block 1. The processing machine housing 2 can be installed and supported by the cooperation of the support block 1 and the support plate 4.

[0041] A hydraulic rod 7 is installed on the processing machine housing 2. A mounting bracket 8 is provided on the output shaft of the hydraulic rod 7 and is installed on the injection tube 15. The mounting bracket 8 on the output shaft of the hydraulic rod 7 allows the injection tube 15 to move up and down through the mounting bracket 8 when the hydraulic rod 7 is started.

[0042] Based on Example 1: When personnel use an injection mold to injection mold the O-ring of computer accessories, they can use the feed pipe 11 to receive the material to be molded. When the material enters the hopper 12, the personnel can open the second drive mechanism 10 to drive the stirring rod 25 to stir the material. While stirring, the personnel can open the second heater 13 to preheat the material in the hopper 12. After preheating, the valve on the connecting pipe 14 can be opened to inject the material into the injection pipe 15. The material enters the injection pipe 15 and is stirred by the screw 24 driven by the first drive mechanism 9. The material is then melted by the first heater 6. After melting, the material is injected into the mold body 5 by the hydraulic rod 7 to form the O-ring. This allows the material to be preheated before being fully heated, avoiding direct heating and melting of the material which may cause clumping and affect the processing effect.

[0043] Example 2

[0044] like Figures 1-5 As shown, the O-ring injection mold proposed in this utility model, compared with Embodiment 1, further includes: a processing housing 2, a mold body 5, a hopper 12, and an injection tube 15.

[0045] The mold body 5 is mounted on the top surface of the processing machine housing 2;

[0046] The inner wall of the mold body 5 is equipped with an electric heating tube 20 and a coil 21;

[0047] A drive mechanism 317 is installed on the front end face of the mold body 5, and a blade 23 is provided on the output shaft of the drive mechanism 317.

[0048] A heater 6 is mounted on the outer surface of the injection tube 15;

[0049] A drive mechanism 9 is mounted on the top surface of the injection tube 15, and a screw 24 is provided on the output shaft of the drive mechanism 9.

[0050] A heater 13 is fitted to the outer surface of the hopper 12, and a feed pipe 11 is embedded and fixed on the hopper 12.

[0051] A drive mechanism 2 10 is installed on the hopper 12, and a stirring rod 25 is provided on the output shaft of the drive mechanism 2 10.

[0052] The processing housing 2 is equipped with a hydraulic rod 22. The output shaft of the hydraulic rod 22 is equipped with a ejector module 16, which is located inside the mold body 5. By setting the ejector module 16 inside the mold body 5, after the O-ring is formed inside the mold body 5, the operator can open the hydraulic rod 22 to push the ejector module 16 to move inside the mold body 5 to eject the formed O-ring.

[0053] One end of the coil 21 is embedded with a water inlet pipe 18, and the other end of the coil 21 away from the water inlet pipe 18 is embedded with a water outlet pipe 19. Cooling water can be drawn into the coil 21 by an external water pump or other mechanism through the water inlet pipe 18, and the water that flows into the coil 21 is discharged through the water outlet pipe 19. When the water is discharged, personnel can use a water tank or other mechanism to collect and store the water.

[0054] A connecting pipe 14 is embedded and fixed at the bottom end of the hopper 12. The bottom end of the connecting pipe 14 is embedded and fixed inside the injection pipe 15. A valve is installed on the connecting pipe 14 through a flange. Since the bottom end of the connecting pipe 14 is embedded and fixed inside the injection pipe 15, the material received by the hopper 12 can be discharged into the injection pipe 15 by opening the valve on the connecting pipe 14.

[0055] Based on Example 2: When personnel use an injection mold to injection mold the O-ring of computer accessories, in order to avoid a large temperature difference between the mold body 5 and the material, personnel can inject heat-conducting oil into the mold body 5 through the injection pipe 3. After injection, personnel can turn on the heating tube 20 to heat the heat-conducting oil. During heating, personnel can turn on the drive mechanism 17 to drive the blades 23 to rotate. When the blades 23 rotate, they can drive the heat-conducting oil to flow, so that the heat-conducting oil can flow and be heated. After heating, the mold body 5 is preheated to the temperature required for material molding, so as to avoid excessive temperature difference affecting molding. After molding, personnel can turn on the water outlet pipe 19 to connect the external water pump to draw cooling water into the coil 21 to exchange heat with the heat-conducting oil, thereby cooling the mold body 5. During cooling, the molded O-ring is cooled, thus satisfying the molding and cooling of the O-ring.

[0056] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An O-ring injection mold, comprising a processing housing (2), a mold body (5), a hopper (12), and an injection tube (15), characterized in that: The top surface of the processing machine housing (2) is equipped with a mold body (5); The inner wall of the mold body (5) is equipped with an electric heating tube (20) and a coil (21); The front end face of the mold body (5) is equipped with a drive mechanism three (17), and the output shaft of the drive mechanism three (17) is provided with blades (23); A heater (6) is installed on the outer surface of the injection tube (15); The top surface of the injection tube (15) is equipped with a drive mechanism (9), and a screw (24) is provided on the output shaft of the drive mechanism (9). A heater (13) is attached to the outer surface of the hopper (12), and a feed pipe (11) is embedded and fixed on the hopper (12); The hopper (12) is equipped with a second drive mechanism (10), and a stirring rod (25) is provided on the output shaft of the second drive mechanism (10).

2. The O-ring injection mold according to claim 1, characterized in that: The front end face of the mold body (5) is embedded with a filling pipe (3), which is connected to the mold body (5), and a valve is installed on the filling pipe (3) through a flange.

3. The O-ring injection mold according to claim 1, characterized in that: The machining housing (2) is equipped with a hydraulic rod two (22), and a release module (16) is provided on the output shaft of the hydraulic rod two (22), and the release module (16) is located inside the mold body (5).

4. The O-ring injection mold according to claim 1, characterized in that: One end of the coil (21) is embedded and fixed with a water inlet pipe (18), and the other end of the coil (21) away from the water inlet pipe (18) is embedded and fixed with a water outlet pipe (19).

5. An O-ring injection mold according to claim 1 or 3, characterized in that: The bottom end face of the processing machine box (2) is welded with a support block (1), and a support plate (4) is installed on the bottom end face of the support block (1).

6. The O-ring injection mold according to claim 1, characterized in that: A hydraulic rod (7) is installed on the processing machine housing (2). A mounting bracket (8) is provided on the output shaft of the hydraulic rod (7), and the mounting bracket (8) is installed on the injection tube (15).

7. An O-ring injection mold according to claim 1, characterized in that: A connecting pipe (14) is embedded and fixed on the bottom end face of the hopper (12). The bottom end face of the connecting pipe (14) is embedded and fixed inside the injection pipe (15), and a valve is installed on the connecting pipe (14) through a flange.