Precise injection mold with spiral cooling channel
By introducing spiral cooling channels and vibration damping components into precision injection molds, the problem of mold vibration affecting the quality of injection molded products has been solved, achieving efficient cooling and stable movement, thereby improving product quality and production efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-29
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional precision injection molds have limitations in their cooling systems, which makes it difficult to effectively suppress mold vibration, affecting the quality and yield of injection molded products and increasing production costs.
A precision injection mold with a spiral cooling channel is used. The first motor drives the rotating plate and inclined rod to achieve smooth mold movement. Combined with shock absorption components such as slide rods, dampers and return springs, vibration energy is absorbed. At the same time, the second motor drives the propeller to promote the efficient flow of cooling medium inside the mold.
It improves the precision and stability of mold movement, ensures the quality and molding accuracy of injection molded products, and reduces production costs.
Smart Images
Figure CN224060342U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection mold technology, specifically to a precision injection mold with a spiral cooling channel. Background Technology
[0002] Precision injection molds are devices that inject resin material into a metal mold to obtain a product with a certain shape. By controlling the mold temperature and the flow of molten resin, high-precision plastic product molding can be achieved.
[0003] With the continuous advancement of technology and the increasing development of industrial production, various industries are demanding higher precision and quality from plastic products. For example, in the electronics, automotive, and medical fields, there is a need to produce plastic products with high dimensional accuracy, good surface quality, and stable performance. Precision injection molds, as a key process in the production of precision plastic products, are becoming increasingly important. However, traditional precision injection molds have limitations in their cooling systems, making it difficult to meet the requirements of modern industry for high-quality and high-efficiency production of injection-molded products.
[0004] Uncontrolled mold vibration directly impacts the quality of injection-molded products. During injection molding, vibration causes uneven distribution of the raw material within the cavity, leading to defects such as density variations, uneven surfaces, and internal air bubbles, thus reducing product yield and increasing production costs.
[0005] To address the aforementioned issues, a precision injection mold with a spiral cooling channel is proposed. Utility Model Content
[0006] The purpose of this invention is to provide a precision injection mold with a spiral cooling channel, solving the problem in the prior art where mold vibration cannot be effectively suppressed, directly affecting the quality of injection molded products. During the injection molding process, vibration causes uneven distribution of the injection molding material within the cavity, leading to defects such as density differences, uneven surfaces, and internal air bubbles, reducing product yield and increasing production costs.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a precision injection mold with a spiral cooling channel, comprising a processing box, wherein support columns are fixedly connected to the four corners on the right side of the processing box, and a grooved plate is fixedly connected to the other end of each support column. A first motor is fixedly connected to the outer wall of the middle left side of the grooved plate, and a rotating plate is fixedly connected to the output end of the first motor. An inclined rod is rotatably connected to both the upper and lower ends of the rotating plate, and a moving disk is rotatably connected to the other end of each inclined rod. A guide block is fixedly connected to the left side of the grooved plate, and a first sliding block is slidably connected to the inner wall of each guide block and is fixedly connected to the moving disk. A push plate is fixedly connected to the outer wall of the right side of the moving disk and is connected to the inside of the processing box. A carrier box is fixedly connected to the opposite side of each push plate, and a shock-absorbing component is provided inside the carrier box. An upper template is fixedly connected to the bottom of the top push plate, and a lower template is fixedly connected to the top of the bottom push plate. Pipes are fixedly connected inside the lower template and the upper template. A cover plate is fixedly connected to one end of each pipe, and a second motor is fixedly connected to one end of the cover plate. A rotating shaft is fixedly connected to the output end of the second motor.
[0008] By adopting the above technical solution, the two ends of the connecting hose and the pipe are connected separately, one for water inlet and the other for water outlet. The first motor drives the upper mold and the lower mold to move simultaneously to close the mold.
[0009] As a further description of the above technical solution: the shock absorption component includes a slide rod, which is fixedly connected to the inner wall of the bearing box, and dampers are fixedly connected to both the front and rear ends of the slide rod.
[0010] By adopting the above technical solution, a damper is used for buffer protection.
[0011] As a further description of the above technical solution: a propeller is fixedly connected to the outer ring of the rotating shaft.
[0012] By adopting the above technical solution, cooling water is transported by a propeller.
[0013] As a further description of the above technical solution: the upper template has evenly distributed sliding columns that are connected through and fixedly connected inside, and the tail end of the sliding column is fixedly connected to a damping spring, and the damping spring is fixedly connected to the upper end of the lower template.
[0014] By adopting the above technical solution, damping springs are used for buffering.
[0015] As a further description of the above technical solution: the upper template and the lower template are both fixedly connected to evenly distributed connecting blocks on opposite sides, and the middle of each connecting block is rotatably connected to an inclined plate.
[0016] By adopting the above technical solution, the inclined plate is squeezed and rotated by the connecting block.
[0017] As a further description of the above technical solution: a second sliding block is rotatably connected to the middle of the inclined plate, and the second sliding block is slidably connected to the outer ring of the sliding rod.
[0018] By adopting the above technical solution, the second sliding block slides on the outer wall of the slide rod.
[0019] As a further description of the above technical solution: the outer rings at both ends of the slide rod are fitted with return springs, and the return springs are fixedly connected to the second sliding block.
[0020] By adopting the above technical solution, the second sliding block squeezes and buffers the return spring.
[0021] As a further description of the above technical solution: one end of the reset spring is fixedly connected to a limit block, and the limit block is fixedly connected to the slide rod.
[0022] By adopting the above technical solution, limit control is achieved through limit blocks.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] 1. The precision injection mold with spiral cooling channel provided by this utility model firstly drives the coordinated movement of components such as rotating plate, inclined rod, and moving disk through a first motor to realize the mold closing and opening actions. Moreover, the sliding column of the upper platen can move smoothly relative to the lower platen under the action of damping spring, avoiding impact and shaking. At the same time, when the mold vibrates, the sliding rod, damper, second sliding block, connecting block, inclined plate, and return spring in the damping component cooperate with each other to absorb vibration energy and restore the components to their initial positions within the limitation range of the limit block, maintaining the stability of the mold structure and thus improving the accuracy of the mold movement.
[0025] 2. The precision injection mold with spiral cooling channel provided by this utility model uses a second motor to drive the propeller to rotate, which causes the cooling medium to flow in the spiral cooling channel set inside the upper and lower mold plates. This can cool the mold more efficiently and remove the heat generated during the injection molding process, thereby ensuring the quality and molding accuracy of the injection molded products. Attached Figure Description
[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0027] Figure 2 This is a schematic diagram of the structure of the first motor of this utility model;
[0028] Figure 3 This is a schematic diagram of the structure of the carrier box of this utility model;
[0029] Figure 4 This is a schematic diagram of the exploded structure of the pipeline of this utility model.
[0030] In the diagram: 1. Processing box; 2. Rotating shaft; 3. Second motor; 4. Sliding column; 5. Support column; 6. Groove plate; 7. Damping spring; 8. First motor; 9. Rotating plate; 10. Diagonal bar; 11. Moving disk; 12. First sliding block; 13. Guide block; 14. Push plate; 15. Propeller; 16. Carrier box; 17. Sliding rod; 18. Return spring; 19. Second sliding block; 20. Diagonal plate; 21. Connecting block; 22. Damper; 23. Upper template; 24. Pipe; 25. Lower template; 26. Cover plate; 27. Limiting block. Detailed Implementation
[0031] 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.
[0032] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0033] Reference Figures 1-4 The precision injection mold with a spiral cooling channel of this utility model is mainly composed of a machining box 1, support columns 5, grooved plates 6, a first motor 8, and many other components. The machining box 1 serves as the basic load-bearing structure of the entire mold, providing installation space for other components. Support columns 5 are fixedly connected to the four corners on the right side of the machining box 1. The support columns 5 provide support and stability, and their other ends are fixedly connected to the grooved plates 6, which are used to install components such as the first motor 8.
[0034] A first motor 8 is fixedly connected to the outer wall of the middle left side of the groove plate 6. A rotating plate 9 is fixedly connected to the output end of the first motor 8. The upper and lower ends of the rotating plate 9 are respectively rotatably connected to the inclined rods 10, and the other end of the inclined rods 10 is rotatably connected to the moving disk 11. A guide block 13 is fixedly connected to the left side of the groove plate 6. A first sliding block 12 is slidably connected to the inner wall of the guide block 13. The first sliding block 12 is fixedly connected to the moving disk 11. This structural design ensures that the moving disk 11 can make linear motion under the constraint of the guide block 13. A push plate 14 is fixedly connected to the outer wall of the right side of the moving disk 11. The push plate 14 is connected to the inside of the processing box 1. A carrier box 16 is fixedly connected to the opposite side of the push plate 14. A shock-absorbing component is set inside the carrier box 16. The shock-absorbing component includes a slide rod 17 fixedly connected to the inner wall of the carrier box 16. A damper 22 is fixedly connected to both the front and rear ends of the slide rod 17. The top push plate 14 is fixedly connected to the bottom of the upper template 23, and the bottom push plate 14 is fixedly connected to the top of the lower template 25. Evenly distributed sliding columns 4 are connected through and fixedly connected inside the upper template 23. A damping spring 7 is fixedly connected to the tail end of each sliding column 4. The damping spring 7 is fixedly connected to the upper end of the lower template 25, making the upper template 23 and lower template 25 more stable during relative movement. Evenly distributed connecting blocks 21 are fixedly connected to the opposite sides of both the upper template 23 and lower template 25. An inclined plate 20 is rotatably connected to the middle of each connecting block 21. A second sliding block 19 is rotatably connected to the middle of the inclined plate 20. The second sliding block 19 is slidably connected to the outer ring of the slide rod 17. Return springs 18 are sleeved on the outer rings of both ends of the slide rod 17. The return springs 18 are fixedly connected to the second sliding block 19. A limiting block 27 is fixedly connected to one end of the return spring 18. The limiting block 27 is fixedly connected to the slide rod 17. These components together constitute the mold's damping system.
[0035] The lower mold plate 25 and the upper mold plate 23 are internally connected to a pipe 24. One end of the pipe 24 is internally connected to a cover plate 26, and one end of the cover plate 26 is internally connected to a second motor 3. The output end of the second motor 3 is internally connected to a rotating shaft 2, and the outer ring of the rotating shaft 2 is internally connected to a propeller 15. The pipe 24 is a spiral cooling channel. During the injection molding process, the cooling medium is transported through the connecting pipe connected to the pipe 24. After the second motor 3 is started, efficient cooling of the mold can be achieved.
[0036] In practical use, mold installation and debugging are crucial steps. First, place the processing box 1 in a suitable working position to ensure its stability. Then, install the support column 5, groove plate 6, first motor 8, and other components in sequence, ensuring that all components are firmly connected and accurately positioned. For shock-absorbing components and cooling system components, such as the slide bar 17, damper 22, and propeller 15, rigorous inspection and debugging are required to ensure normal performance. When installing the upper mold plate 23 and lower mold plate 25, ensure precise matching between the sliding column 4 and damping spring 7 to allow for smooth relative movement between the upper and lower mold plates. For routine mold maintenance, regularly check the connections of each component, such as the connection between the support column 5 and the processing box 1 and groove plate 6, as well as the wear of rotating and sliding parts, replacing severely worn parts promptly. For easily worn parts such as the damper 22 and return spring 18, inspect and replace them according to the prescribed cycle to ensure the stable performance of the shock-absorbing components. Simultaneously, keep the inside of the pipe 24 clean to prevent impurities in the cooling medium from clogging the pipes and affecting the cooling effect.
[0037] Working principle: The first motor 8 is started, driving the rotating plate 9 to rotate. As the rotating plate 9 rotates, the inclined rod 10 connected to it pushes the moving disk 11 to move along the direction of the guide block 13. Because the first sliding block 12 connects the moving disk 11 to the guide block 13, the linearity of the movement is ensured. The movement of the moving disk 11 drives the push plate 14 to move, thereby causing the upper mold plate 23 and the lower mold plate 25 to move closer or further apart, realizing the mold closing and opening actions. During this process, the sliding column 4 of the upper mold plate 23, under the action of the damping spring 7, can move smoothly relative to the lower mold plate 25, avoiding impact and shaking during the mold opening and closing process, and improving the accuracy of the mold movement.
[0038] Vibration damping process: When the mold is subjected to vibration during operation, the damping components inside the support box 16 begin to function. The slide bar 17 and the dampers 22 fixed at its front and rear ends absorb some of the vibration energy. At the same time, the second sliding block 19, which is slidably connected to the slide bar 17, slides on the slide bar 17 with vibration. The structure consisting of the connecting block 21, the inclined plate 20, and the second sliding block 19 will adaptively adjust according to the vibration situation. The inclined plate 20 rotates to further disperse the vibration energy. The return springs 18 at both ends of the slide bar 17 also undergo elastic deformation during vibration to absorb vibration energy. After the vibration ends, the return springs 18 return to the initial position within the limiting range of the limiting block 27, maintaining the stability of the mold structure.
[0039] Cooling Process: During injection molding, cooling water is supplied through a connecting pipe connected to pipe 24, and the second motor 3 is started. The second motor 3 drives the rotating shaft 2 to rotate, and the propeller 15 fixed on the rotating shaft 2 rotates accordingly. The rotation of the propeller 15 causes the cooling medium to flow in pipe 24. Pipe 24 is a spiral cooling channel set inside the upper mold plate 23 and the lower mold plate 25. Water exits from the other end of the pipe. The cooling medium flows in the spiral channel, which can more efficiently cool the mold, remove the heat generated during injection molding, and ensure the quality and molding accuracy of the injection molded product.
[0040] 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.
[0041] 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. Precision injection mold with helical cooling channels, comprising a machining box (1), characterized in that: The processing box (1) right side four corner position all are fixedly connected with support column (5), the other end of support column (5) is fixedly connected with recessed plate (6), the left side middle part outer wall of recessed plate (6) is fixedly connected with first motor (8), the output of first motor (8) is fixedly connected with rotating plate (9), the upper and lower ends of rotating plate (9) are all rotatably connected with inclined rod (10), the other end of inclined rod (10) is rotatably connected with moving disc (11), the left side of recessed plate (6) is all fixedly connected with guide block (13), the inner wall of guide block (13) is slidably connected with first sliding block (12), and first sliding block (12) is fixedly connected with moving disc (11), the right side outer wall of moving disc (11) is fixedly connected with push plate (14), and push plate (14) is connected with processing box (1) inside, the opposite side of push plate (14) is all fixedly connected with bearing box (16), the inside of bearing box (16) is provided with shock absorbing assembly, the bottom of push plate (14) is fixedly connected with upper die plate (23), the top of push plate (14) is fixedly connected with lower die plate (25), the inside of lower die plate (25) and upper die plate (23) are fixedly connected with pipeline (24), one end of pipeline (24) is fixedly connected with cover plate (26), one end of cover plate (26) is fixedly connected with second motor (3), the output of second motor (3) is fixedly connected with rotating shaft (2).
2. The precision injection mold with spiral cooling channels of claim 1, wherein: The shock absorbing assembly includes a slide rod (17), the slide rod (17) is fixedly connected to the inner wall of the bearing box (16), and the slide rod (17) is fixedly connected to the front and rear ends of the damper (22).
3. The precision injection mold with spiral cooling channels of claim 2, wherein: The outer ring of the rotating shaft (2) is fixedly connected with a propeller (15).
4. The precision injection mold with spiral cooling channels of claim 1, wherein: The inside of the upper die plate (23) is fixedly connected with a plurality of sliding columns (4) which are evenly distributed, the tail end of the sliding column (4) is fixedly connected with a damping spring (7), and the damping spring (7) is fixedly connected to the upper end of the lower die plate (25).
5. The precision injection mold with spiral cooling channels of claim 2, wherein: The opposite side of the upper die plate (23) and the lower die plate (25) is fixedly connected with a plurality of connecting blocks (21) which are evenly distributed, the middle part of the connecting block (21) is rotatably connected with an inclined plate (20).
6. The precision injection mold with spiral cooling channels of claim 5, wherein: The middle part of the inclined plate (20) is rotatably connected with a second sliding block (19), and the second sliding block (19) is slidably connected with the outer ring of the slide rod (17).
7. The precision injection mold with spiral cooling channels of claim 3, wherein: The outer ring of the slide rod (17) is sleeved with a reset spring (18), and the reset spring (18) is fixedly connected with the second sliding block (19).
8. The precision injection mold with spiral cooling channels of claim 7, wherein: One end of the reset spring (18) is fixedly connected with a limiting block (27), and the limiting block (27) is fixedly connected with the slide rod (17). One end of the reset spring (18) is fixedly connected with a limiting block (27), and the limiting block (27) is fixedly connected with the slide rod (17).