A cooling water channel structure for automotive component injection molds

By designing a sliding baffle and water tank structure, the problem of easy clogging of the baffle was solved, enabling convenient cleaning and maintenance, improving cooling effect and reducing maintenance costs.

CN224276076UActive Publication Date: 2026-05-26SHENZHEN JISHENG MOULD CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN JISHENG MOULD CO LTD
Filing Date
2025-07-14
Publication Date
2026-05-26

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Abstract

This utility model relates to the field of injection mold cooling technology, and discloses a cooling water channel structure for an injection mold of automotive parts. It includes a mold cavity, with a molding cavity inside the mold cavity. A water tank is slidably connected inside the mold cavity, and a guide plate is slidably connected inside the water tank. The guide plate has guide holes inside, and a retaining bead abuts against the inside of the guide plate. A fixing plate is fixedly connected to the outer wall of the retaining bead, and a limiting post is fixedly connected to the outer wall of the fixing plate. A first spring is slidably connected to the outer wall of the limiting post, and a support assembly is provided on the outer wall of the mold cavity. In this utility model, pulling the guide plate upwards, through the cooperation of the retaining bead, fixing plate, limiting post, and first spring, removes the guide plate from the water tank. This facilitates removal and cleaning of the guide plate, preventing blockage of the guide holes due to long-term use and ensuring effective cooling of the molding cavity. It also facilitates thorough cleaning of the water tank.
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Description

Technical Field

[0001] This utility model relates to the field of injection mold cooling technology, and in particular to a cooling water channel structure for automotive parts injection molds. Background Technology

[0002] Automotive parts refer to various parts and components used in the manufacture of automobiles. These parts include engine components, chassis components, body components, electrical system components, etc., and are the basic units that make up a car. Uniform cooling can reduce product defects caused by uneven cooling, such as shrinkage and warping, and improve the dimensional accuracy and surface quality of the product. Therefore, a cooling water channel structure for automotive parts injection molds is used.

[0003] The cooling water channel structure of automotive parts injection molds is a structure used to quickly cool the mold during the injection molding process, in order to shorten the molding cycle, improve production efficiency, and ensure product quality. In the existing automotive parts injection mold cooling technology, the guide plate is often fixed inside the cooling tank. After long-term use, it is easy to cause blockage, which affects the flow of coolant and thus affects the cooling effect. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a cooling water channel structure for automotive component injection molds, aiming to improve the problem that the guide plate is often fixed inside the cooling tank, which is prone to blockage after long-term use, affecting the flow of coolant and thus the cooling effect.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a cooling water channel structure for an injection mold of automotive parts, including a mold cavity, a molding cavity inside the mold cavity, a water tank slidably connected inside the mold cavity, a guide plate slidably connected inside the water tank, a guide hole inside the guide plate, a retaining bead abutting inside the guide plate, the outer wall of the retaining bead slidably connected to the inside of the water tank, a fixing plate fixedly connected to the outer wall of the retaining bead, the outer wall of the fixing plate slidably connected to the inside of the water tank, a limit post fixedly connected to the outer wall of the fixing plate, a first spring slidably connected to the outer wall of the limit post, one end of the first spring fixedly connected to the outer wall of the fixing plate, the other end of the first spring fixedly connected to the inside of the water tank, and a support assembly provided on the outer wall of the mold cavity.

[0006] Preferably, the support assembly includes a fixing frame, the outer wall of which is fixedly connected to the outer wall of the mold cavity, and a fixing shaft is rotatably connected inside the fixing frame.

[0007] Preferably, a water injection pipe is fixedly connected inside the water tank, and a pull ring is fixedly connected to the outer wall of the water tank.

[0008] Preferably, the interior of the water tank has a slot, and the outer wall of the water tank is fixedly connected to a retaining strip, the outer wall of the retaining strip being slidably connected to the interior of the mold cavity.

[0009] Preferably, a rotating plate is fixedly connected to the outer wall of the fixed shaft, and a second spring is fixedly connected to the outer wall of the rotating plate. The outer wall of the second spring is fixedly connected to the outer wall of the mold cavity.

[0010] Preferably, a connecting piece is fixedly connected to the outer wall of the rotating plate, and a connecting rod is fixedly connected to the outer wall of the connecting piece.

[0011] Preferably, the outer wall of the connecting rod is slidably connected to the inside of the mold cavity, and an insert block is fixedly connected to the outer wall of the connecting rod.

[0012] Preferably, the outer wall of the insert abuts against the inner wall of the slot, and the outer wall of the insert is slidably connected to the inside of the mold cavity.

[0013] This utility model has the following beneficial effects:

[0014] 1. In this utility model, the molded cavity can be cooled evenly by the guide plate and the guide hole. By pulling the guide plate upward, the guide plate can be removed from the water tank through the cooperation of the retaining ball, the fixing piece, the limiting post and the first spring. This makes it easy to remove the guide plate for cleaning, avoids the blockage of the guide hole due to long-term use, which affects the cooling of the molded cavity, and also facilitates the thorough cleaning of the water tank.

[0015] 2. In this utility model, by pressing the rotating plate, the water tank can be pulled out from the mold cavity by the cooperation between the fixed shaft, the second spring, the connecting piece, the connecting rod and the insert block. This achieves the effect of periodically disassembling and inspecting the water tank, making it easier to clean and maintain, and reducing maintenance costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of a cooling water channel structure for an injection mold of automotive parts proposed in this utility model;

[0017] Figure 2 This is a partial structural diagram of the guide plate of the cooling water channel structure for an injection mold of automotive parts proposed in this utility model;

[0018] Figure 3 This is a cross-sectional schematic diagram of the internal structure of the cooling water channel structure of an injection mold for automotive parts, as proposed in this utility model.

[0019] Figure 4 This is a partial structural diagram of the retaining strip of the cooling water channel structure for an injection mold of automotive parts proposed in this utility model;

[0020] Figure 5This is a cross-sectional view of the internal structure of the fixing frame of the cooling water channel structure of an injection mold for automotive parts proposed in this utility model.

[0021] Legend:

[0022] 1. Mold cavity; 2. Molding cavity; 3. Water tank; 4. Guide plate; 5. Guide hole; 6. Clamping bead; 7. Fixing plate; 8. Limiting post; 9. First spring; 10. Fixing frame; 11. Fixing shaft; 12. Water injection pipe; 13. Pull ring; 14. Slot; 15. Clamping strip; 16. Rotating plate; 17. Second spring; 18. Connecting plate; 19. Connecting rod; 20. Insert block. Detailed Implementation

[0023] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and 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.

[0024] Reference Figure 1 , Figure 2 and Figure 3 This utility model provides an embodiment of a cooling water channel structure for an injection mold of automotive parts, including a mold cavity 1, a molding cavity 2 inside the mold cavity 1, a water tank 3 slidably connected inside the mold cavity 1, a guide plate 4 slidably connected inside the water tank 3, a guide hole 5 inside the guide plate 4, a retaining bead 6 abutting inside the guide plate 4, the outer wall of the retaining bead 6 slidably connected inside the water tank 3, a fixing piece 7 fixedly connected to the outer wall of the retaining bead 6, the outer wall of the fixing piece 7 slidably connected inside the water tank 3, a limit post 8 fixedly connected to the outer wall of the fixing piece 7, a first spring 9 slidably connected to the outer wall of the limit post 8, one end of the first spring 9 fixedly connected to the outer wall of the fixing piece 7, the other end of the first spring 9 fixedly connected to the inside of the water tank 3, and a support assembly provided on the outer wall of the mold cavity 1.

[0025] Specifically, mold cavity 1 supports molding cavity 2. Injection molding material is added to molding cavity 2 to mold automotive parts. The water tank 3 cools the upper molding cavity 2 during injection molding, accelerating the cooling process. The design of the guide plate 4 and guide holes 5 facilitates the uniform distribution of cooling medium inside the water tank 3, thus uniformly cooling molding cavity 2. The retaining ball 6 limits the guide plate 4; when the retaining ball 6 is engaged inside the guide plate 4, it limits and fixes the guide plate 4 to the water tank 3; conversely, when the guide plate 4 needs to be removed... By applying an upward force to the guide plate 4, the retaining bead 6 can be squeezed. The retaining bead 6 fixes the fixing piece 7, allowing the fixing piece 7 to slide inside the water tank 3 by the push of the retaining bead 6. The fixing piece 7 fixes the limiting post 8, thus allowing it to slide synchronously. The limiting post 8 limits the sliding distance of the fixing piece 7. The first spring 9 is located between the fixing piece 7 and the water tank 3. It will be squeezed due to the sliding of the fixing piece 7. The first spring 9 has a rebound and reset function. When the retaining bead 6 is no longer squeezed, it can be pushed in the opposite direction to lock the retaining bead 6 inside the guide plate 4, thereby fixing it inside the water tank 3.

[0026] Reference Figure 1 The support assembly includes a fixed frame 10, the outer wall of the fixed frame 10 is fixedly connected to the outer wall of the mold cavity 1, and a fixed shaft 11 is rotatably connected inside the fixed frame 10;

[0027] Specifically, the fixing frame 10 is fixed to the outer wall of the mold cavity 1 to support the fixing shaft 11, which allows the fixing shaft 11 to rotate stably inside the fixing frame 10.

[0028] Reference Figure 4 and Figure 5 A water inlet pipe 12 is fixedly connected inside the water tank 3, and a pull ring 13 is fixedly connected to the outer wall of the water tank 3. A slot 14 is opened inside the water tank 3, and a retaining strip 15 is fixedly connected to the outer wall of the water tank 3. The outer wall of the retaining strip 15 is slidably connected to the inside of the mold cavity 1. A rotating plate 16 is fixedly connected to the outer wall of the fixed shaft 11, and a second spring 17 is fixedly connected to the outer wall of the rotating plate 16. The outer wall of the second spring 17 is fixedly connected to the outer wall of the mold cavity 1. A connecting piece 18 is fixedly connected to the outer wall of the rotating plate 16, and a connecting rod 19 is fixedly connected to the outer wall of the connecting piece 18. The outer wall of the connecting rod 19 is slidably connected to the inside of the mold cavity 1, and an insert block 20 is fixedly connected to the outer wall of the connecting rod 19. The outer wall of the insert block 20 abuts against the inner wall of the slot 14, and the outer wall of the insert block 20 is slidably connected to the inside of the mold cavity 1.

[0029] Specifically, the water tank 3 serves to fix the water injection pipe 12, which facilitates the addition of cooling medium into the water tank 3. The pull ring 13 is fixed to the outer wall of the water tank 3, which facilitates its removal from the mold cavity 1. The retaining strip 15 is fixed to the outer wall of the water tank 3, which limits and fixes the position of the water tank 3 inside the mold cavity 1. The rotating plate 16 serves to fix the fixed shaft 11, and pressing the rotating plate 16 can make the fixed shaft 11 rotate synchronously. The rotating plate 16 also serves to fix the connecting piece 18, which can rotate synchronously. The connecting piece 18 fixes the connecting rod 19, which can slide inside the mold cavity 1 as the connecting piece 18 slides. The connecting rod 19 fixes the insert block 20, which can slide synchronously within the mold cavity 1 and the slot 14. The insert block 20 serves to fix the water tank 3. When the insert block 20 is stuck on the inner wall of the slot 14, it can fix the water tank 3 and the mold cavity 1. Otherwise, the water tank 3 can be removed.

[0030] Working principle: When the cooling structure is needed, coolant can be injected into the water tank 3 through the water injection pipe 12. The water flow can be guided by the guide plate 4 and the guide hole 5 to make the coolant evenly distributed inside the water tank 3, so as to uniformly cool the molding cavity 2 above. When the water tank 3 needs to be cleaned, press the rotating plate 16 to squeeze the second spring 17. When the rotating plate 16 rotates, it will drive the fixed shaft 11 to rotate inside the fixed frame 10. At the same time, the rotating plate 16 will drive the connecting piece 18 to rotate, which will drive the connecting rod 19 and the insert 20 to slide. When the insert 20 slides out of the inner wall of the slot 14, the pull ring 13 can be pulled. The pull ring 13 will drive the water tank 3 and the locking strip 15 to slide inside the mold cavity 1, thereby pulling the water tank 3 out of the mold cavity 1 for cleaning. This achieves the effect of periodically disassembling and inspecting the water tank 3, making it easier to clean and maintain, and reducing maintenance costs.

[0031] When the guide plate 4 needs to be cleaned or replaced, simply pull the guide plate 4 upwards. During the upward sliding process, the guide plate 4 will squeeze the retaining bead 6, causing it to push the fixing plate 7 to slide inside the water tank 3. When the fixing plate 7 slides, it will simultaneously drive the limiting post 8 to slide and squeeze the first spring 9 during the sliding process, thereby freeing the guide plate 4 from the restriction of the retaining bead 6. The guide plate 4 can then be removed from the inside of the water tank 3, making it easy to remove and clean. This avoids the situation where the guide hole 5 is blocked due to long-term use, affecting the mold cooling effect. It also facilitates the thorough cleaning of the water tank 3. This cooling water channel structure not only allows for the periodic disassembly and inspection of the water tank 3, facilitating cleaning and maintenance and reducing maintenance costs, but also makes it easy to remove and clean the guide plate 4, avoiding the situation where the guide hole 5 is blocked due to long-term use, affecting the mold cooling effect, and facilitating the thorough cleaning of the water tank 3.

[0032] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling water channel structure for an injection mold of automotive parts, comprising a mold cavity (1), characterized in that: The mold cavity (1) is provided with a molding cavity (2) inside. A water tank (3) is slidably connected inside the mold cavity (1). A guide plate (4) is slidably connected inside the water tank (3). A guide hole (5) is opened inside the guide plate (4). A retaining bead (6) is abutted inside the guide plate (4). The outer wall of the retaining bead (6) is slidably connected inside the water tank (3). A fixing piece (7) is fixedly connected to the outer wall of the retaining bead (6). The outer wall of the fixing piece (7) is slidably connected inside the water tank (3). A limit post (8) is fixedly connected to the outer wall of the fixing piece (7). A first spring (9) is slidably connected to the outer wall of the limit post (8). One end of the first spring (9) is fixedly connected to the outer wall of the fixing piece (7). The other end of the first spring (9) is fixedly connected to the inside of the water tank (3). A support assembly is provided on the outer wall of the mold cavity (1).

2. The cooling water channel structure for an automotive parts injection mold according to claim 1, characterized in that: The support assembly includes a fixed frame (10), the outer wall of which is fixedly connected to the outer wall of the mold cavity (1), and a fixed shaft (11) is rotatably connected inside the fixed frame (10).

3. The cooling water channel structure for an automotive parts injection mold according to claim 1, characterized in that: A water inlet pipe (12) is fixedly connected inside the water tank (3), and a pull ring (13) is fixedly connected to the outer wall of the water tank (3).

4. The cooling water channel structure for an automotive parts injection mold according to claim 1, characterized in that: The water tank (3) has a slot (14) inside, and a retaining strip (15) is fixedly connected to the outer wall of the water tank (3). The outer wall of the retaining strip (15) is slidably connected to the inside of the mold cavity (1).

5. The cooling water channel structure for an automotive parts injection mold according to claim 2, characterized in that: A rotating plate (16) is fixedly connected to the outer wall of the fixed shaft (11), and a second spring (17) is fixedly connected to the outer wall of the rotating plate (16). The outer wall of the second spring (17) is fixedly connected to the outer wall of the mold cavity (1).

6. The cooling water channel structure for an injection mold of automotive parts according to claim 5, characterized in that: A connecting piece (18) is fixedly connected to the outer wall of the rotating plate (16), and a connecting rod (19) is fixedly connected to the outer wall of the connecting piece (18).

7. The cooling water channel structure for an injection mold of automotive parts according to claim 6, characterized in that: The outer wall of the connecting rod (19) is slidably connected to the inside of the mold cavity (1), and the outer wall of the connecting rod (19) is fixedly connected to the insert (20).

8. The cooling water channel structure for an injection mold of automotive parts according to claim 7, characterized in that: The outer wall of the insert (20) abuts against the inner wall of the slot (14), and the outer wall of the insert (20) is slidably connected to the inside of the mold cavity (1).