Injection mold for processing automobile plastic parts

By setting flow channels and inlet/outlet water pipes in the injection mold, and utilizing the cooperation of moving rings and locking rods, the water flow rate can be quickly adjusted and precisely controlled, solving the problems of slow and uneven cooling speed of existing molds, and improving the quality and production efficiency of injection molded parts.

CN223558941UActive Publication Date: 2025-11-18GUANGDONG CHENGGUAN PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202423127940.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-17
Publication Date
2025-11-18
Estimated Expiration
2034-12-17

AI Technical Summary

Technical Problem

Existing injection mold cooling systems are not efficient enough, have slow cooling speeds, uneven cooling, and complex and low-precision water flow rate adjustment, making them difficult to adapt to different production conditions and needs.

Method used

An injection mold for processing automotive plastic parts was designed. By setting flow channels in the upper and lower molds and introducing cooling water through inlet and outlet pipes, combined with the cooperation of a moving ring, a moving rod and a locking rod, the water flow rate can be quickly adjusted and precisely controlled.

Benefits of technology

It improves the cooling speed and quality consistency of injection molded parts, shortens the production cycle, ensures uniform distribution of cooling water and flexible adjustment of water flow rate, and enhances the adaptability and flexibility of molds.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an injection mold for processing automobile plastic parts, which comprises a bottom plate, an injection molding component is arranged on the bottom plate, the injection molding component comprises a lower mold, guide rods, an upper mold, guide holes and grooves, the lower mold is arranged on the bottom plate, the guide rods are arranged at four corners of the lower mold, the upper mold is connected onto the guide rods in a sliding manner, and the guide holes are arranged on the guide rods. The guide holes are formed in the upper die and matched with the guide rods, the grooves are formed in the lower die, the upper die and the lower die are each provided with a fixing assembly, each fixing assembly comprises a flowing groove, a water inlet pipe and a water outlet pipe, the flowing grooves are formed in the upper die and the lower die, and the water inlet pipes are communicated with the flowing grooves. And the water inlet pipe and the water outlet pipe are connected to the upper mold and the lower mold and are connected with the flowing groove, so that the technical problems that an existing injection mold cooling system mentioned in the background technology is not efficient enough in design and low in cooling speed are solved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to injection mold technical field, more specifically, it relates to a kind of injection mold for automobile plastic parts processing. BACKGROUND

[0002] In the prior art, the existing injection mold cooling system is not efficient enough, and the cooling speed is slow, which makes the injection molding part cool and solidify in the mold for a long time, increases the production cycle, and the design of the cooling system may cause uneven cooling, some parts cool too fast and other parts cool too slow, affecting the quality and consistency of the injection molding part.

[0003] The adjusted water flow rate cannot be quickly fixed after adjusting the water flow rate of the existing cooling system, which may cause unstable water flow and affect the cooling effect. For example, fluctuations in water flow may cause uneven cooling, affecting the quality of the injection molding part. The process of adjusting and fixing the water flow rate is complex, and the operator needs to have high skills and experience, increasing the operation difficulty and training cost.

[0004] The existing cooling system can only adjust the water flow rate within a limited range, and cannot meet the needs of different injection molding materials and mold designs. The precision of adjusting the water flow rate is low, and accurate control cannot be achieved, which may result in unsatisfactory cooling effect and affect the quality of the injection molding part. The existing cooling system is difficult to adapt to different production conditions and needs, such as injection molding parts of different materials and different production speeds, limiting the flexibility and adaptability of the mold. SUMMARY

[0005] (I) Technical problem solved

[0006] To solve the problems in the prior art, the utility model provides an injection mold for automobile plastic parts processing to solve the technical problems of inefficient design and slow cooling speed of the existing injection mold cooling system mentioned in the background.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an injection mold for automobile plastic parts processing, comprising a bottom plate, an injection assembly is arranged on the bottom plate, the injection assembly comprises a lower mold, a guide rod, an upper mold, a guide hole and a groove, the lower mold is arranged on the bottom plate, the guide rod is arranged at the four corners of the lower mold, the upper mold is slidably connected to the guide rod, the guide hole is formed in the upper mold, the guide hole is matched with the guide rod, the groove is formed in the lower mold, the upper mold and the lower mold are both provided with a fixing assembly, the fixing assembly comprises a flow groove, a water inlet pipe and a water outlet pipe, the flow groove is formed inside the upper mold and the lower mold, the water inlet pipe and the water outlet pipe are connected to the upper mold and the lower mold, and connected with the flow groove.

[0009] The utility model further sets up, install the boss on the upper die, the boss is adapted to the recess, install the top plate on the upper die, be equipped with the injection pipe on the top plate connection, the injection pipe passes through the top plate and inserts into the upper die, through the cooperation of each component makes the injection process to the material is completed.

[0010] The utility model further sets up, the top plate and bottom plate are equipped with the handle on the threaded connection, the top plate and bottom plate all are equipped with the jack on opening, the jack is adapted to the handle, through the cooperation of each component makes the connection process to the handle is completed.

[0011] The utility model further sets up, the inlet pipe and outlet pipe all are equipped with the connecting pipe on the connection, one end of the connecting pipe is equipped with the rotating pipe of rotation connection, one end of the rotating pipe is equipped with the contact pipe of rotation connection, the fixed plate is fixedly installed on the connecting pipe, the moving ring is slidably connected on the connecting pipe, the tension spring is connected between the moving ring and the fixed plate, through the cooperation of each component makes the stretching process to the tension spring is completed.

[0012] The utility model further sets up, the moving ring all is evenly connected with the moving rod on, the moving groove is opened on the moving rod, the lock rod is connected on the moving groove, the rotating pipe all is evenly opened with the through groove and the lock groove, the through groove is adapted to the moving rod, the lock groove is adapted to the lock rod, through the cooperation of each component makes the locking process to the lock rod is completed.

[0013] The utility model further sets up, the rotating pipe is provided with adjusting assembly, the adjusting assembly includes screw block, threaded rod and fender, the screw block sets up in the rotating pipe inboard, the threaded rod is connected with screw block, the fender is connected with threaded rod, the fender is abutted with the inboard of inlet pipe, through the cooperation of each component makes the threaded rotation process to the threaded rod is completed.

[0014] The utility model further sets up, the spring is connected on the threaded rod, the both ends of the spring are abutted with fender and screw block, the threaded slot is opened in the connecting pipe, through the cooperation of each component makes the compression process to the spring is completed.

[0015] The utility model further sets up, the fender is connected with the ball on rolling, the ball is connected on threaded slot on rolling, the water channel is opened on the fender, through the cooperation of each component makes the rolling movement process to the ball is completed.

[0016] (Three) beneficial effects

[0017] Compared with the prior art, this utility model provides an injection mold for processing automotive plastic parts, which has the following advantages:

[0018] 1. By setting guide rods at the four corners of the lower mold and opening matching guide holes on the upper mold, the precise alignment of the upper and lower molds during the mold closing process is ensured, avoiding defects in the injection molded parts caused by poor alignment. The protrusions on the upper mold and the grooves on the lower mold are matched, further ensuring the accuracy of mold closing and improving the quality of the injection molded parts.

[0019] 2. Both the upper and lower molds are equipped with flow channels. Cooling water is introduced through inlet and outlet pipes, allowing the cooling water to flow quickly through the mold, accelerating the cooling process of the injection molded parts and shortening the production cycle. The flow channel design ensures that the cooling water is evenly distributed inside the mold, avoiding quality problems of the injection molded parts caused by uneven cooling.

[0020] 3. By cooperating with the moving ring, moving rod and locking rod, the fixing of the rotating tube can be quickly released, allowing the rotating tube to rotate flexibly, thereby adjusting the water flow rate. The threaded block on the inner side of the rotating tube is threadedly connected to the threaded rod. By rotating the threaded rod, the baffle plate can be moved along the threaded groove to achieve precise adjustment of the water flow rate. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of an injection mold for processing automotive plastic parts according to this utility model;

[0022] Figure 2 This is a side view of the structure of this utility model;

[0023] Figure 3 This is a cross-sectional view of the upper mold in this utility model;

[0024] Figure 4 This is a cross-sectional view of the lower mold in this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing component in this utility model;

[0026] Figure 6 This is a cross-sectional view of the fixing component in this utility model;

[0027] Figure 7 This is an enlarged structural diagram of A in this utility model.

[0028] In the diagram: 1. Base plate; 2. Lower mold; 3. Guide rod; 4. Upper mold; 5. Guide hole; 6. Groove; 7. Flow channel; 8. Inlet pipe; 9. Outlet pipe; 10. Protrusion; 11. Top plate; 12. Injection pipe; 13. Handle; 14. Insertion hole; 15. Connecting pipe; 16. Rotating pipe; 17. Contact pipe; 18. Fixing plate; 19. Moving ring; 20. Tension spring; 21. Moving rod; 22. Moving channel; 23. Locking rod; 24. Through groove; 25. Locking groove; 26. Threaded block; 27. Threaded rod; 28. Water baffle; 29. ​​Spring; 30. Threaded groove; 31. Roller ball; 32. Flow channel. Detailed Implementation

[0029] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0030] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0031] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0032] Please see Figures 1-7 An injection mold for processing automotive plastic parts includes a base plate 1. An injection molding assembly is provided on the base plate 1. The injection molding assembly includes a lower mold 2, a guide rod 3, an upper mold 4, a guide hole 5, and a groove 6. The lower mold 2 is provided on the base plate 1. The guide rod 3 is provided at the four corners of the lower mold 2. The upper mold 4 is slidably connected to the guide rod 3. The guide hole 5 is opened on the upper mold 4 and is adapted to the guide rod 3. The groove 6 is opened on the lower mold 2. Both the upper mold 4 and the lower mold 2 are provided with a fixing assembly. The fixing assembly includes a flow channel 7, a water inlet pipe 8, and a water outlet pipe 9. The flow channel 7 is opened inside the upper mold 4 and the lower mold 2. The water inlet pipe 8 and the water outlet pipe 9 are both connected to the upper mold 4 and the lower mold 2 and are connected to the flow channel 7.

[0033] A protrusion 10 is installed on the upper mold 4, which is adapted to the groove 6. A top plate 11 is installed on the upper mold 4, and an injection tube 12 is connected to the top plate 11. The injection tube 12 passes through the top plate 11 and is inserted into the upper mold 4.

[0034] The top plate 11 and the bottom plate 1 are provided with a handle 13 through screw connection, and the top plate 11 and the bottom plate 1 are provided with a plug hole 14.

[0035] The water inlet pipe 8 and the water outlet pipe 9 are provided with a connecting pipe 15, one end of the connecting pipe 15 is rotatably connected with a rotating pipe 16, one end of the rotating pipe 16 is rotatably connected with a contact pipe 17, the connecting pipe 15 is fixedly provided with a fixed plate 18, the connecting pipe 15 is slidably connected with a moving ring 19, and the moving ring 19 and the fixed plate 18 are connected with a tension spring 20.

[0036] The moving ring 19 is uniformly provided with a moving rod 21, the moving rod 21 is provided with a moving groove 22, the moving groove 22 is connected with a locking rod 23, the rotating pipe 16 is uniformly provided with a through groove 24 and a locking groove 25, the through groove 24 is matched with the moving rod 21, and the locking groove 25 is matched with the locking rod 23.

[0037] In the embodiment, in use, the lower mold 2 is placed on the bottom plate 1, the guide hole 5 on the upper mold 4 is inserted along the guide rod 3, so that the groove 6 on the lower mold 2 is aligned with the protrusion 10 on the upper mold 4, the injection process is completed, then the material is injected along the injection pipe 12, flows into the upper mold 4 and the lower mold 2, promotes the injection molding process, and in the injection process, the water source is introduced into the upper mold 4 and the lower mold 2 along the water inlet pipe 8, can quickly cool the injection molded part in the upper mold 4 and the lower mold 2, and the water source introduced into the upper mold 4 and the lower mold 2 along the water inlet pipe 8 flows into the flow groove 7, is finally discharged along the water outlet pipe 9, and in use, when the flow rate of the water flow needs to be adjusted, the moving ring 19 is slidably moved along the connecting pipe 15, in the sliding movement, the tension spring 20 between the moving ring 19 and the fixed plate 18 is stretched, in the movement of the moving ring 19, the moving rod 21 on the moving ring 19 is moved, in the movement of the moving rod 21, the moving rod 21 moves along the rotating pipe 16 through the moving groove 22, in the movement, the locking rod 23 on the moving rod 21 is moved out of the locking groove 25 of the rotating pipe 16, so that the fixing of the rotating pipe 16 is released, then the rotating pipe 16 is rotated, after the through groove 24 on the rotating pipe 16 is aligned with the moving rod 21, under the elastic potential energy of the tension spring 20, the moving rod 21 is moved, so that the fixing of the rotating pipe 16 is released.

[0038] Please refer to Figures 5-7As an automobile plastic accessory processing injection mold embodiment of the adjusting assembly: the rotating pipe 16 is provided with an adjusting assembly, the adjusting assembly includes a threaded block 26, a threaded rod 27 and a water baffle 28, the threaded block 26 is arranged inside the rotating pipe 16, the threaded rod 27 is threadedly connected with the threaded block 26, and the water baffle 28 is connected with the threaded rod 27, and the water baffle 28 abuts against the inside of the water inlet pipe 8.

[0039] The threaded rod 27 is sleeved with a spring 29, the two ends of the spring 29 abut against the water baffle 28 and the threaded block 26, and a threaded groove 30 is arranged in the inside of the connecting pipe 15.

[0040] The water baffle 28 is rollingly connected with a rolling ball 31, the rolling ball 31 is rollingly connected on the threaded groove 30, and a water flow groove 32 is arranged on the water baffle 28.

[0041] More specifically, the rotating pipe 16 is rotated, in the rotating process, the threaded block 26 inside is rotated, in the rotating process of the threaded block 26, the threaded rod 27 threadedly connected with the threaded block 26 is rotated, in the rotating process, the water baffle 28 at one end is moved along the threaded groove 30 on the connecting pipe 15 by the rolling ball 31 on the water baffle 28, in the moving process, the spring 29 between the threaded block 26 and the water baffle 28 is compressed, and the water flow groove 32 on the water baffle 28 is leaked, so that when the water source passes through the water inlet pipe 8, the connecting pipe 15, the rotating pipe 16 and the contact pipe 17 in turn, the water source can flow quickly, otherwise, when the flow rate needs to be adjusted, the above steps are operated in reverse.

[0042] In summary, the overall device in use or operation: in the process of use, the lower die 2 is placed on the base plate 1, and the guide hole 5 on the upper die 4 is inserted along the guide rod 3, so that the groove 6 on the lower die 2 is aligned with the protrusion 10 on the upper die 4, and the insertion process is completed, then the material is injected along the injection pipe 12, and flows into the upper die 4 and the lower die 2, which promotes the injection molding process, and in the injection molding process, the water source is introduced into the upper die 4 and the lower die 2 along the water inlet pipe 8, which can quickly cool the injection molded parts in the upper die 4 and the lower die 2, and the water source is introduced into the upper die 4 and the lower die 2 along the water inlet pipe 8 at the flow groove 7 of the upper die 4 and the lower die 2, and finally discharged along the water outlet pipe 9, and in the process of use, when the flow rate of the water flow needs to be adjusted, the moving ring 19 is slid along the connecting pipe 15, and in the sliding movement process, the tension spring 20 between the moving ring 19 and the fixed plate 18 is stretched, and in the movement of the moving ring 19, the moving rod 21 on the moving ring 19 is moved, and when the moving rod 21 moves, the moving rod 21 moves along the rotating pipe 16 by using the moving groove 22, and in the movement process, the locking rod 23 on the moving rod 21 is moved out of the locking groove 25 of the rotating pipe 16, so that the fixing of the rotating pipe 16 is released, then the rotating pipe 16 is rotated, and after the through groove 24 on the rotating pipe 16 is aligned with the moving rod 21, it is moved under the elastic potential energy of the tension spring 20, so that the fixing of the rotating pipe 16 is released.

[0043] The rotating pipe 16 is rotated, and in the rotating process, the threaded block 26 inside is rotated, and in the rotating process of the threaded block 26, the threaded rod 27 connected with it is rotated, which in the rotating process, the water baffle 28 at one end of the threaded block 26 is rolled along the threaded groove 30 on the connecting pipe 15 by using the rolling ball 31 on it, and in the movement process, the spring 29 between the threaded block 26 and the water baffle 28 is compressed, and the water flow groove 32 on the water baffle 28 is leaked, so that when the water source passes through the water inlet pipe 8 and the connecting pipe 15, the rotating pipe 16 and the contact pipe 17 in turn, the water source can flow quickly, and vice versa, when the flow rate needs to be adjusted, the above steps are reversed.

[0044] In all the above-mentioned solutions, the connection between the two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection or other known connection mode, which will not be described here. In the above, whenever there is a fixed connection, welding is preferred. Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An injection mold for processing automobile plastic parts, comprising a base plate (1), characterized in that: The bottom plate (1) is provided with an injection molding assembly, the injection molding assembly comprises a lower mold (2), a guide rod (3), an upper mold (4), a guide hole (5) and a groove (6), the lower mold (2) is arranged on the bottom plate (1), the guide rod (3) is arranged at the four corners of the lower mold (2), the upper mold (4) is slidably connected on the guide rod (3), the guide hole (5) is arranged on the upper mold (4), the guide hole (5) is matched with the guide rod (3), the groove (6) is arranged on the lower mold (2), the upper mold (4) and the lower mold (2) are provided with a fixing assembly, the fixing assembly comprises a flow groove (7), a water inlet pipe (8) and a water outlet pipe (9), the flow groove (7) is arranged inside the upper mold (4) and the lower mold (2), the water inlet pipe (8) and the water outlet pipe (9) are connected at the upper mold (4) and the lower mold (2) and connected with the flow groove (7).

2. The injection mold for processing plastic parts of an automobile as set forth in claim 1, wherein: The upper mold (4) is provided with a protrusion (10), the protrusion (10) is matched with the groove (6), the upper mold (4) is provided with a top plate (11), the top plate (11) is connected with an injection pipe (12), the injection pipe (12) penetrates the top plate (11) and is inserted into the upper mold (4).

3. The injection mold for processing plastic parts of an automobile as set forth in claim 2, wherein: The top plate (11) and the bottom plate (1) are threadedly connected with a handle (13), the top plate (11) and the bottom plate (1) are both provided with a bushing (14), the bushing (14) is matched with the handle (13).

4. The injection mold for processing plastic parts of an automobile as set forth in claim 3, wherein: The water inlet pipe (8) and the water outlet pipe (9) are both connected with a connecting pipe (15), one end of the connecting pipe (15) is rotatably connected with a rotating pipe (16), one end of the rotating pipe (16) is rotatably connected with a contact pipe (17), the connecting pipe (15) is fixedly connected with a fixed plate (18), the connecting pipe (15) is slidably connected with a moving ring (19), the moving ring (19) and the fixed plate (18) are connected with a tension spring (20).

5. The injection mold for processing plastic parts of an automobile as set forth in claim 4, wherein: The moving ring (19) is uniformly connected with a moving rod (21), the moving rod (21) is provided with a moving groove (22), the moving groove (22) is connected with a locking rod (23), the rotating pipe (16) is uniformly provided with a through groove (24) and a locking groove (25), the through groove (24) is matched with the moving rod (21), the locking groove (25) is matched with the locking rod (23).

6. The injection mold for processing plastic parts of an automobile as set forth in claim 5, wherein: The rotating pipe (16) is provided with an adjusting assembly, the adjusting assembly comprises a threaded block (26), a threaded rod (27) and a water baffle (28), the threaded block (26) is arranged on the inner side of the rotating pipe (16), the threaded rod (27) is threadedly connected with the threaded block (26), the water baffle (28) is connected with the threaded rod (27), and the water baffle (28) abuts against the inner side of the water inlet pipe (8).

7. The injection mold for processing plastic parts of an automobile as set forth in claim 6, wherein: The threaded rod (27) is sleeved with a spring (29), both ends of the spring (29) abut against the water baffle (28) and the threaded block (26), and the connecting pipe (15) is internally provided with a threaded groove (30).

8. The injection mold for processing plastic parts of an automobile as set forth in claim 7, wherein: The water baffle (28) is connected with a rolling ball (31) through rolling connection, the rolling ball (31) is connected with a screw groove (30) through rolling connection, and a water flow groove (32) is arranged on the water baffle (28).