Cooling device for automobile part injection mold
By combining a rotating component and a drive component with a heat-conducting plate and a blowing component, rapid cooling of automotive part injection molds is achieved, solving the problem of slow cooling speed caused by multiple rotations in existing technologies and improving production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-08
- Publication Date
- 2026-03-31
AI Technical Summary
The existing cooling devices for automotive parts injection molds require multiple rotations to achieve four-sided cooling, resulting in slow cooling speed and affecting production efficiency.
By employing a rotating assembly and a drive assembly in conjunction with a heat-conducting plate and a blower assembly, rapid heat dissipation is achieved on all four sides of the mold body through a single rotation. Cooling pipes and heat sinks are used to accelerate heat transfer, and a fan is used to accelerate airflow, thereby achieving rapid cooling.
This design enables rapid heat dissipation from all four sides of the mold body, shortens cooling time, improves production efficiency, and facilitates subsequent demolding and maintenance.
Smart Images

Figure CN224060387U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold cooling technology, and in particular to a cooling device for injection molds of automotive parts. Background Technology
[0002] Automotive parts are the various units that make up a car and the products that serve the car. In the process of producing automotive parts, various types of automotive components are needed. Automotive components are generally produced by injection molding and demolding. After the plastic raw material is injected, the mold cannot be cooled down in a short time, which results in the part molding time being too long and affects the production efficiency of automotive parts. Therefore, it is necessary to use a corresponding cooling device to assist the mold in cooling down quickly.
[0003] Chinese patent application publication number CN219171596U discloses a cooling device for injection molds of automotive plastic parts. The device includes a worktable with a slot at the center of its top surface. A mounting plate is installed inside the slot. A first motor is fixed at the center of the bottom surface of the worktable, and the output end of the first motor passes through the worktable and is fixed to the bottom surface of the mounting plate. Inclined openings are located at the four corners of the top surface of the mounting plate. While this device can cool the mold body while providing some space around it, cooling the four sides of the mold body sequentially requires rotating the mold body three times, making the cooling operation cumbersome and resulting in a slow cooling speed. Utility Model Content
[0004] To address the shortcomings of existing technologies, this utility model provides a cooling device for injection molds of automotive parts, which solves the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A cooling device for injection molds of automotive parts includes a worktable. A rotating assembly is provided at the bottom of the worktable, and a support frame is provided at the top of the worktable via the rotating assembly. A mold body is inserted into the support frame. A driving assembly is provided at the front of the worktable, and a screw is provided inside the worktable via the driving assembly. The screw is rotatably connected to the worktable. A movable plate is threadedly connected to the surface of the screw and is slidably connected to the worktable. A heat-conducting plate is fixedly installed on the top of the movable plate, a cooling pipe is fixedly installed on the side of the heat-conducting plate, heat sinks are fixedly installed on the side of the heat-conducting plate, and a blowing assembly is provided at the rear of the heat-conducting plate.
[0007] Preferably, the rotating assembly includes a rotary motor disposed at the bottom of the worktable, the output end of the rotary motor extending through the worktable to the top of the worktable and fixedly mounted with a rotating shaft, the rotating shaft being fixedly connected to the support frame.
[0008] Preferably, the drive assembly includes a dual-axis motor disposed on the front side of the worktable, a first pulley is fixedly mounted on the output end of the dual-axis motor, a synchronous belt is engaged on the surface of the first pulley, a second pulley is engaged on the inner wall of the synchronous belt, and the second pulley is fixedly connected to the screw.
[0009] Preferably, the blower assembly includes a mounting bracket disposed on the rear side of the heat-conducting plate, a drive motor is fixedly mounted on the top of the mounting bracket, a rotating rod is fixedly mounted on the output end of the drive motor, a first bevel gear is fixedly mounted on the surface of the rotating rod, a second bevel gear is meshed on the surface of the first bevel gear, a rotating column is fixedly mounted inside the second bevel gear, the rotating column is rotatably connected to the mounting bracket, and a fan blade is fixedly mounted on the surface of the rotating column.
[0010] Preferably, there are multiple rotating columns, and the multiple rotating columns are distributed in an array.
[0011] Preferably, the top of the workbench is provided with a sliding groove, and the movable plate is slidably connected to the sliding groove.
[0012] Preferably, there are two heat-conducting plates, and the two heat-conducting plates are symmetrically distributed.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: This cooling device for automotive parts injection molds uses a drive assembly to rotate the screw, causing the moving plate and heat-conducting plate to move towards the mold body. This allows the heat-conducting plate to dissipate heat from both sides of the mold body in one operation. Then, the drive assembly causes the screw to rotate in the opposite direction, moving the moving plate and heat-conducting plate away from the mold body, separating them. Subsequently, a rotating assembly rotates the support frame and mold body to a suitable position. Then, the drive assembly rotates the screw again, causing the moving plate and heat-conducting plate to move towards the mold body, allowing the heat-conducting plate to dissipate heat from the other two sides of the mold body. The entire process only requires rotating the mold body once to complete heat dissipation on all four sides, thus achieving faster cooling of the mold body. Simultaneously, it provides sufficient space around the mold body, facilitating subsequent demolding or maintenance. Attached Figure Description
[0014] Figure 1 This is a three-dimensional perspective view of the present invention;
[0015] Figure 2 This is a cross-sectional view of the present invention;
[0016] Figure 3 This is a partial structural diagram of the present invention;
[0017] Figure 4 This is a partial structural diagram of the present invention.
[0018] In the diagram: 1. Workbench; 2. Rotary motor; 3. Rotating shaft; 4. Bearing frame; 5. Mold body; 6. Dual-axis motor; 7. First pulley; 8. Synchronous belt; 9. Second pulley; 10. Screw; 11. Moving plate; 12. Heat-conducting plate; 13. Cooling pipe; 14. Heat sink; 15. Mounting bracket; 16. Drive motor; 17. Rotating rod; 18. First bevel gear; 19. Second bevel gear; 20. Rotating column; 21. Fan blade. Detailed Implementation
[0019] 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.
[0020] Reference Figure 1-4A cooling device for injection molds of automotive parts includes a worktable 1. A rotating assembly is located at the bottom of the worktable 1, and a support frame 4 is mounted on the top of the worktable 1 via the rotating assembly. A mold body 5 is inserted into the support frame 4. The rotating assembly includes a rotary motor 2 located at the bottom of the worktable 1. The output end of the rotary motor 2 extends through the worktable 1 to the top of the worktable 1 and is fixedly mounted with a rotating shaft 3. The rotating shaft 3 is fixedly connected to the support frame 4. The rotating assembly facilitates the rotation of the support frame 4 and the mold body 5, thereby facilitating the reversal of the mold body 5. A drive assembly is located on the front side of the worktable 1, and a screw 10 is mounted inside the worktable 1 via the drive assembly. Screw 10 is rotatably connected to worktable 1. A movable plate 11 is threaded onto the surface of screw 10. A slide groove is provided on the top of worktable 1, and the movable plate 11 is slidably connected to the slide groove, facilitating more stable movement of the movable plate 11. The drive assembly includes a dual-axis motor 6 located on the front side of worktable 1. A first pulley 7 is fixedly mounted on the output end of the dual-axis motor 6. A synchronous belt 8 is meshed on the surface of the first pulley 7, and a second pulley 9 is meshed on the inner wall of the synchronous belt 8. The second pulley 9 is fixedly connected to screw 10. Through the configuration of the drive assembly, screw 10 can rotate simultaneously, thereby facilitating the simultaneous movement of the movable plate 11. The movable plate 11 slides against worktable 1. The movable plate 11 is connected to a heat-conducting plate 12, which is fixedly mounted on its top. Two heat-conducting plates 12 are symmetrically distributed. Cooling pipes 13 and heat sinks 14 are fixedly mounted on the sides of the heat-conducting plates 12. A blower assembly is located behind the heat-conducting plates 12. This cooling device for the automotive part injection mold rotates the screw 10 via a drive assembly, causing the movable plate 11 and heat-conducting plates 12 to move towards the mold body 5. This allows the heat-conducting plates 12 to dissipate heat from both sides of the mold body 5 at once. The drive assembly also causes the screw 10 to rotate in the opposite direction, moving the movable plate 11 and heat-conducting plates 12 away from the mold body 5. The mold body 5 is moved in the direction of the mold body 5, so that the heat conduction plate 12 is separated from the mold body 5. Then, the rotating component is used to rotate the support frame 4 and the mold body 5 to a suitable position. Then, the drive component is used to rotate the screw 10, so that the moving plate 11 and the heat conduction plate 12 move towards the mold body 5, so that the heat conduction plate 12 can dissipate heat on the other two sides of the mold body 5. The whole process only requires rotating the mold body 5 once to complete the heat dissipation on all four sides, so that the heat dissipation and cooling of the mold body 5 can be completed more quickly. At the same time, a certain space is provided around the mold body 5, which facilitates the subsequent demolding or maintenance of the mold body 5.
[0021] Specifically, the air blowing assembly includes a mounting bracket 15 located on the rear side of the heat-conducting plate 12. A drive motor 16 is fixedly mounted on the top of the mounting bracket 15. A rotating rod 17 is fixedly mounted on the output end of the drive motor 16. A first bevel gear 18 is fixedly mounted on the surface of the rotating rod 17. A second bevel gear 19 is meshed on the surface of the first bevel gear 18. A rotating column 20 is fixedly mounted inside the second bevel gear 19. There are multiple rotating columns 20, and the multiple rotating columns 20 are distributed in an array. The rotating columns 20 are rotatably connected to the mounting bracket 15. Fan blades 21 are fixedly mounted on the surface of the rotating columns 20. By setting up the air blowing assembly, the airflow around the heat-conducting plate 12 is accelerated, which can quickly remove the heat on the heat-conducting plate 12. Moreover, one motor drives multiple fan blades 21 to rotate, which can reduce motor waste.
[0022] All electrical components mentioned in this article are connected to an external main controller and 220V AC mains power, and the main controller can be a conventional known device such as a computer for control.
[0023] In use: Connect water pumps to the inlet and outlet of cooling pipe 13 to deliver cold water into the cooling pipe 13. The water then flows out through the cooling pipe 13. The dual-shaft motor 6 rotates the first pulley 7, which in turn drives the second pulley 9 via the synchronous belt 8. This causes the screw 10 to rotate, moving the moving plate 11 towards the center. This moves the heat-conducting plate 12 towards the center, bringing it into contact with both sides of the mold body 5. Heat from the mold body 5 is transferred to the heat-conducting plate 12, while the flowing cold water in the cooling pipe 13 carries away heat from the heat-conducting plate 12. The heat sink 14 enhances the heat dissipation effect on the surface of the heat-conducting plate 12 furthest from the mold body 5. Simultaneously, the drive motor 16 rotates the rotating rod 17. The rotation causes the first bevel gear 18 to rotate, the second bevel gear 19 to rotate, the rotating column 20 to rotate, and the fan blade 21 to rotate, causing the fan blade 21 to blow air and accelerate the airflow speed on the surface of the heat-conducting plate 12 and the heat sink 14, thereby accelerating the heat dissipation of the heat-conducting plate 12 and the heat sink 14. After the heat dissipation treatment on both sides of the mold body 5, the dual-axis motor 6 is started in the opposite direction, which can make the heat-conducting plates 12 move away from each other and separate the heat-conducting plates 12 from the mold body 5. Then, the rotating motor 2 is used to rotate the rotating shaft 3, the bearing frame 4, and the mold body 5 to a suitable position. The dual-axis motor 6 is started again, which makes the heat-conducting plates 12 move towards the middle and contact the other two sides of the mold body 5, thereby dissipating heat on the other two sides of the mold body 5.
[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0025] 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. A cooling device for an injection mold for an automobile part, comprising a worktable (1), characterized in that, The bottom of the workbench (1) is provided with a rotating assembly, the top of the workbench (1) is provided with a bearing frame (4) through the rotating assembly, the inside of the bearing frame (4) is inserted with a mold body (5), the front side of the workbench (1) is provided with a driving assembly, the inside of the workbench (1) is provided with a screw rod (10) through the driving assembly, the screw rod (10) is rotatably connected with the workbench (1), the surface of the screw rod (10) is threadedly connected with a moving plate (11), the moving plate (11) is slidably connected with the workbench (1), the top of the moving plate (11) is fixedly installed with a heat-conducting plate (12), the side of the heat-conducting plate (12) is fixedly installed with a cooling pipe (13), the side of the heat-conducting plate (12) is fixedly installed with a cooling fin (14), and the rear side of the heat-conducting plate (12) is provided with a blowing assembly.
2. The cooling device for an injection mold of an automobile part according to claim 1, characterized in that, The rotating assembly comprises a rotating motor (2) arranged at the bottom of the workbench (1), and the output end of the rotating motor (2) extends through the workbench (1) to the top of the workbench (1) and is fixedly installed with a rotating shaft (3), and the rotating shaft (3) is fixedly connected with the bearing frame (4).
3. The cooling device for an injection mold of an automobile part according to claim 1, characterized in that, The driving assembly comprises a double-shaft motor (6) arranged at the front side of the workbench (1), and the output end of the double-shaft motor (6) is fixedly installed with a first pulley (7), the surface of the first pulley (7) is engaged with a synchronous belt (8), the inner wall of the synchronous belt (8) is engaged with a second pulley (9), and the second pulley (9) is fixedly connected with the screw rod (10).
4. The cooling device for an injection mold of an automobile part according to claim 1, characterized in that, The blowing assembly comprises a mounting bracket (15) arranged at the rear side of the heat-conducting plate (12), the top of the mounting bracket (15) is fixedly installed with a driving motor (16), the output end of the driving motor (16) is fixedly installed with a rotating rod (17), the surface of the rotating rod (17) is fixedly installed with a first bevel gear (18), the surface of the first bevel gear (18) is engaged with a second bevel gear (19), the inside of the second bevel gear (19) is fixedly installed with a rotating column (20), the rotating column (20) is rotatably connected with the mounting bracket (15), and the surface of the rotating column (20) is fixedly installed with a fan blade (21).
5. The cooling device for an injection mold of an automobile part according to claim 4, characterized in that, The number of the rotating columns (20) is plural, and the plural rotating columns (20) are arrayed.
6. The cooling device for an injection mold of an automobile part according to claim 1, characterized in that, The top of the workbench (1) is provided with a sliding groove, and the moving plate (11) is slidably connected with the sliding groove.
7. The cooling device for an injection mold of an automobile part according to claim 1, characterized in that, The number of the heat-conducting plates (12) is two, and the two heat-conducting plates (12) are symmetrically distributed.
Citation Information
Patent Citations
Cooling device for automobile plastic part injection mold
CN219171596U