An industrial electric control insert frame injection mold
Patent Information
- Application Number
- CN202522300543.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-30
- Publication Date
- 2026-10-27
- Estimated Expiration
- 2035-10-30
Smart Images
Figure CN224897969U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of injection molds, and in particular to an injection mold for an industrial electrical control insert frame. Background Technology
[0002] Industrial electrical control insert frames are the core structural carriers of modern automation equipment, specifically designed for the integrated installation of various electrical components (such as PLCs, circuit breakers, contactors, terminal blocks, etc.). They are typically manufactured from high-strength metal sheets (such as galvanized steel or aluminum alloy), forming regular mounting holes and guide rail grooves to ensure precise component positioning and secure fixation. Their core value lies in integrating all disparate modules into a robust, compact, and secure integrated unit through standardized mechanical structures and optimized electrical layouts. This not only achieves efficient centralized wiring and space saving, greatly improving the cleanliness and ease of maintenance within the equipment, but also effectively resists vibration, shock, and electromagnetic interference, ensuring the long-term reliability and stability of the electrical control system in complex industrial environments. It serves as the fundamental platform for constructing various power distribution cabinets, control cabinets, and automation equipment enclosures.
[0003] In existing industrial electrical control insert frames, production and processing generally involve injection molding. During mold preparation, after the fixed mold and moving mold are closed, molten medium is injected into the mold cavity formed by the fixed mold and moving mold. After cooling, the mold is separated, and the product is ejected by ejector pins driven by ejector plates. However, existing injection molds for industrial electrical control insert frames have certain shortcomings. The ends of the ejector pins are generally cylindrical, and the connection between the ejector pin and the hole accommodating the ejector pin is a straight-in-south configuration. After the molten medium enters the mold cavity, it can easily enter the gap between the ejector pin and the hole accommodating the ejector pin, resulting in more burrs on the molded product.
[0004] Therefore, it is necessary to provide a new injection mold for industrial electrical control insert frames to solve the above-mentioned technical problems. Utility Model Content
[0005] To solve the above-mentioned technical problems, this utility model provides an industrial electrical control insert frame injection mold.
[0006] The industrial electrical control insert frame injection mold provided by this utility model includes a moving mold and a fixed mold. A docking base is installed on the fixed mold, and a fixed core is also installed on the fixed mold. A docking moving base is installed on the moving mold, and a moving core is installed on the moving mold inside the docking moving base. A hollow ejector plate is also installed on the moving mold, and an ejector pin is fixed on the ejector plate. One end of the ejector pin passes through a through hole opened in the moving core. A placement groove is opened at the end of the ejector pin away from the ejector plate. A push column is slidably arranged in the placement groove. One end of the push column is located outside the placement groove and has a frustum-shaped structure. The frustum-shaped structure can fit into the opening of the through hole. A spring is fixed in the placement groove, and one end of the spring is fixed to the push column. A vent pipe is also fixed on the ejector pin.
[0007] Preferably, the moving mold is provided with a first slider, a second slider, a third slider and a fourth slider around the moving core respectively. The first slider and the third slider are provided with transverse protrusions at the ends adjacent to the moving core. The first slider and the third slider can move laterally. The second slider and the fourth slider are provided with longitudinal protrusions at the ends adjacent to the moving core.
[0008] Preferably, a guide block is fixed to the outer wall of the push column, and the guide block is slidably disposed in a guide groove opened in the inner wall of the placement groove.
[0009] Preferably, the first slider, the second slider, the third slider and the fourth slider are respectively provided with a first cooling pipe, a second cooling pipe, a third cooling pipe and a fourth cooling pipe.
[0010] Preferably, the end of the moving part away from the docking base is provided with an ejector hole at the position corresponding to the push column.
[0011] Preferably, each of the four corners of the ejector plate is equipped with an elastic guide member, which includes a compression spring and a guide rod. One end of the guide rod is fixed to the ejector plate, and the guide rod moves through the moving mold. The compression spring is sleeved on the guide rod, and both ends of the compression spring are fixed to the ejector plate and the moving mold, respectively.
[0012] Preferably, the fixed mold is provided with a glue inlet, which is fixedly connected to the guide tube. A branch tube is fixedly connected to the guide tube, and multiple input tubes are fixedly connected to the branch tube. The ends of the multiple input tubes away from the branch tubes all extend to the fixed core.
[0013] Preferably, a movable block is also installed on the fixed mold, one end of which is located on the docking fixed base and fixedly connected to the fixed core.
[0014] Preferably, the second slider has a docking groove at the position corresponding to the movable block, the movable block part can be moved into the docking groove, and a wear-resistant block is fixedly connected to the end of the movable block near the docking base.
[0015] Compared with related technologies, the industrial electronic control insert frame injection mold provided by this utility model has the following beneficial effects: As the ejector plate moves away from the moving core, it drives the ejector pin to move. The ejector pin, through a spring, drives the push column to move. When the frustum-shaped structure of the push column is embedded in the opening of the through hole, the ejector plate continues to move, and the spring is stretched. The stretched spring applies tension to the frustum-shaped structure, increasing the interaction force between the frustum-shaped structure and the through hole. This makes it difficult for the melt to enter the gap between the frustum-shaped structure and the through hole, reducing the appearance of burrs on the molded product. In addition, the end of the traditional ejector pin is cylindrical. Compared with the traditional straight-in and straight-out method between the end of the ejector pin and the moving core, the melt is less likely to spread and flow after entering between the ejector pin and the moving core, further reducing the effect of burrs.
[0016] During demolding, the ejector plate moves towards the product, which in turn moves the ejector pins. The tension of the spring gradually decreases. When the spring is in its natural state, the frustum-shaped structure and the inner wall of the through hole are only in contact without any interaction force. The first mating hole is directly opposite the second mating hole, and air is introduced into the inner cavity of the ejector plate. After the gas enters the vent pipe, it overflows from the first mating hole to the second mating hole, and then overflows into the through hole. The gas fills the connection between the molded product and the moving core from between the frustum-shaped structure and the inner wall of the through hole, making it less likely for the product to stick when it is demolded. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of the injection mold for the industrial electrical control insert frame provided by this utility model; Figure 2 for Figure 1 The diagram shows a structural decomposition. Figure 3 for Figure 2 A schematic diagram of the moving model of the structure shown; Figure 4 for Figure 2 A partial cross-sectional structural diagram of the structure shown. Figure 5 for Figure 3 A schematic diagram of a partial decomposition of the structure shown; Figure 6 for Figure 5 A schematic diagram showing the exploded structure of the cooling pipes of the four sliders shown; Figure 7 for Figure 5 The diagram shows an exploded view of the cooling pipes of the docking moving base; Figure 8 for Figure 1 A schematic diagram of the fixed mold structure shown; Figure 9 for Figure 8 A schematic diagram of the docking base and the stator shown in the diagram; Figure 10 for Figure 9 The diagram shows a decomposed structural representation of the structure. Figure 11 for Figure 8 The diagram shown is a structural schematic of the stabilizing kernel. Figure 12 for Figure 11 The diagram shows a partial decomposition of the telomer. Figure 13 for Figure 8 A schematic diagram of the bottom structure of the core shown; Figure 14 for Figure 13 The diagram shows the structural schematic of the glue injection pipeline in the structure shown. Figure 15 for Figure 14 A schematic diagram of a partial decomposition of the structure shown; Figure 16 for Figure 5 A schematic diagram of the structure with multiple ejector pins shown; Figure 17 for Figure 16 A schematic diagram of the bottom structure of the shown structure; Figure 18 for Figure 1 A schematic diagram showing the structure of the first slider and the opposite surface of the product being processed; Figure 19 for Figure 1 A schematic diagram showing the structure of the second slider and the opposite surface of the product being processed; Figure 20 for Figure 1 A schematic diagram showing the structure of the third slider and the opposite surface of the product being processed; Figure 21 for Figure 1 The diagram shows the structure of the fourth slider and the opposite side of the product being processed.
[0018] Labels in the diagram: 1. Moving mold; 2. Fixed mold; 3. Connecting base; 4. Fixed core; 5. Connecting moving base; 6. Moving core; 7. Ejector plate; 8. Ejector pin; 9. Through hole; 10. Placement slot; 11. Push column; 12. Spring; 13. Vent pipe; 14. Slide groove; 15. First connecting hole; 16. Second connecting hole; 17. First slider; 18. Second slider; 19. Third slider; 20. Fourth slider; 21. Guide block; 22. Guide groove; 23. First cooling pipe; 24. Second cooling pipe. 25. Third cooling pipe; 26. Fourth cooling pipe; 27. Ejector hole; 28. Compression spring; 29. Guide rod; 30. Inlet; 31. Flow guide pipe; 32. Diverter pipe; 33. Movable block; 34. Connecting groove; 35. Wear-resistant block; 36. Sixth cooling pipe; 37. Fifth cooling pipe; 38. Insert core; 39. High-temperature resistant sealing ring; 40. Insert core; 41. Insert block and insert pin; 42. Seventh cooling pipe; 43. Eighth cooling pipe; 44. Product; 45. Input pipe. Detailed Implementation
[0019] The present invention will be further described below with reference to the accompanying drawings and embodiments.
[0020] Please refer to the following: Figures 1-21 ,in: Figure 1 This is a schematic diagram of the structure of the injection mold for the industrial electrical control insert frame provided by this utility model; Figure 2 for Figure 1 The diagram shows a structural decomposition. Figure 3 for Figure 2 A schematic diagram of the moving model of the structure shown; Figure 4 for Figure 2 A partial cross-sectional structural diagram of the structure shown. Figure 5 for Figure 3 A schematic diagram of a partial decomposition of the structure shown; Figure 6 for Figure 5 A schematic diagram showing the exploded structure of the cooling pipes of the four sliders shown; Figure 7 for Figure 5 The diagram shows an exploded view of the cooling pipes of the docking moving base; Figure 8 for Figure 1 A schematic diagram of the fixed mold structure shown; Figure 9 for Figure 8 A schematic diagram of the docking base and the stator shown in the diagram; Figure 10 for Figure 9 The diagram shows a decomposed structural representation of the structure. Figure 11 for Figure 8 The diagram shown is a structural schematic of the stabilizing kernel. Figure 12 for Figure 11 The diagram shows a partial decomposition of the telomer. Figure 13 for Figure 8 A schematic diagram of the bottom structure of the core shown; Figure 14 for Figure 13 The diagram shows the structural schematic of the glue injection pipeline in the structure shown. Figure 15 for Figure 14 A schematic diagram of a partial decomposition of the structure shown; Figure 16 for Figure 5 A schematic diagram of the structure with multiple ejector pins shown; Figure 17 for Figure 16 A schematic diagram of the bottom structure of the shown structure; Figure 18 for Figure 1 A schematic diagram showing the structure of the first slider and the opposite surface of the product being processed; Figure 19 for Figure 1 A schematic diagram showing the structure of the second slider and the opposite surface of the product being processed; Figure 20 for Figure 1 A schematic diagram showing the structure of the third slider and the opposite surface of the product being processed; Figure 21 for Figure 1 The diagram shows the structure of the fourth slider and the opposite side of the product being processed.
[0021] In the specific implementation process, such as Figures 1-21 As shown, the system includes a moving mold 1 and a fixed mold 2. A docking base 3 is mounted on the fixed mold 2, and a fixed core 4 is also mounted on the fixed mold 2. A docking moving base 5 is mounted on the moving mold 1, and a moving core 6 is mounted on the moving mold 1 inside the docking moving base 5. A hollow ejector plate 7 is also mounted on the moving mold 1, and an ejector pin 8 is fixed on the ejector plate 7. One end of the ejector pin 8 passes through a through hole 9 in the moving core 6. A placement groove 10 is formed at the end of the ejector pin 8 away from the ejector plate 7. A pushing column 11 is slidably disposed within the placement groove 10. A guide block 21 is fixed to the outer wall of the pushing column 11, and the guide block 21 is slidably disposed within a guide groove 22 formed on the inner wall of the placement groove 10. One end of the pushing column 11 is located within the placement groove. The 10 has a frustum-shaped structure that can be fitted into the opening of the through hole 9. A spring 12 is fixed inside the placement groove 10. One end of the spring 12 is fixed to the push column 11. A vent pipe 13 is also fixed on the ejector pin 8. One end of the vent pipe 13 is fixedly connected to the ejector plate 7. The other end of the vent pipe 13 is movably disposed in the slide groove 14 opened in the push column 11. A first docking hole 15 is opened on the outer wall of the vent pipe 13. A second docking hole 16 is opened in the slide groove 14. When the spring 12 is in a naturally extended state, the first docking hole 15 and the second docking hole 16 correspond to each other and the vent pipe 13 abuts against the bottom wall of the slide groove 14. The abutting here can be understood as the vent pipe 13 contacting the bottom wall of the slide groove 14. The docking base 3 is provided with a seventh cooling pipe 42 and an eighth cooling pipe 43 on both sides for cooling; It should be noted that multiple inserts 40 are provided on the docking base 5, and air is vented through the inserts 40. Inserts and pins 41 are provided on the first slider 17 and the third slider 19, which serve the purpose of venting. It should be noted that multiple insert cores 38 are fixed on the fixed core 4. The insert cores 38 of the fixed mold 2 are all made of insert pins, which also serve as venting, solving many problems of poor venting of the fixed mold 2. The insert cores 38 are fitted with high temperature resistant sealing rings 39, which clamp the inserts to ensure that the inserts of the fixed mold 2 do not fall off during production and ensure that the inserts and the plane of the fixed mold 2 remain flat and consistent. The structure of Dingren 4 is made of high-temperature resistant and impact-resistant steel (2344ESR and 8407); Mold core replacement instructions: Make 4 pieces, with 1 as a spare and 2 to 3 for production; In use, the ejector plate 7 is externally connected to an air supply device, such as an air pump. The ejector plate 7 is connected to the ejector rod of the injection molding machine. Moving the ejector plate 7 away from the moving core 6 causes the ejector pin 8 to move. The ejector pin 8, via a spring 12, moves the push column 11. When the frustum-shaped structure of the push column 11 is inserted into the opening of the through hole 9, the ejector plate 7 continues to move, and the spring 12 is stretched. The stretched spring 12 applies tension to the frustum-shaped structure, increasing... The interaction force between the frustum-shaped structure and the through hole 9 is reduced, making it difficult for the melt to enter the gap between the frustum-shaped structure and the through hole 9, thus reducing the appearance of burrs on the molded product 44. In addition, the end of the traditional ejector pin 8 is cylindrical, which, compared to the traditional straight-in and straight-out method between the end of the ejector pin 8 and the moving core 6, makes it less likely for the melt to spread and flow after entering the space between the ejector pin 8 and the moving core 6, further reducing the burr effect. When the moving mold 1 moves towards the fixed mold 2, the mold is closed. The mold is filled with glue into the mold cavity. After the product 44 cools and solidifies, the moving mold 1 moves away from the fixed mold 2 to separate the mold. The product 44 is formed on the moving mold 1. The ejector plate 7 moves towards the product 44, which in turn drives the ejector pin 8 to move. The tension of the spring 12 gradually decreases. When the spring 12 is in its natural state, the frustum-shaped structure and the inner wall of the through hole 9 are only in contact without any interaction force. The first mating hole 15 is directly opposite the second mating hole 16, and the ejector plate 7 is filled with glue into the inner cavity. In the middle ventilation, the gas enters the ventilation pipe 13 and overflows from the first docking hole 15 to the second docking hole 16. After passing through the second docking hole 16, it overflows into the through hole 9. The gas fills the connection between the molded product 44 and the moving core 6 from between the frustum-shaped structure and the inner wall of the through hole 9, making it less likely for the product 44 to stick when it is detached. Finally, the ejector plate 7 continues to move, pushing the push column 11 through the ventilation pipe 13 to push the product 44, realizing the demolding operation of the product 44 and pushing the molded product 44. The moving mold 1 is provided with a first slider 17, a second slider 18, a third slider 19 and a fourth slider 20 around the moving core 6. The first slider 17 and the third slider 19 are provided with transverse protrusions adjacent to the moving core 6. The first slider 17 and the third slider 19 can move laterally. The second slider 18 and the fourth slider 20 are provided with longitudinal protrusions adjacent to the moving core 6. It should be noted that the groove on the side wall of the product 44 can be formed by the first slider 17, the second slider 18, the third slider 19 and the fourth slider 20. After the product 44 is cooled and formed, the first slider 17, the second slider 18, the third slider 19 and the fourth slider 20 are moved away from the moving core 6 before the product 44 is demolded. The first slider 17, the second slider 18, the third slider 19, and the fourth slider 20 are respectively provided with a first cooling pipe 23, a second cooling pipe 24, a third cooling pipe 25, and a fourth cooling pipe 26. Through the first cooling pipe 23, the second cooling pipe 24, the third cooling pipe 25, and the fourth cooling pipe 26 respectively provided on the first slider 17, the second slider 18, the third slider 19, and the fourth slider 20, the product 44 can be uniformly cooled during the cooling stage after injection molding. The moving part 6 is provided with an ejection hole 27 at the end away from the docking moving base 5 and at the position corresponding to the push column 11. Through the ejection hole 27, after the product 44 is formed, the push column 11 can directly contact the surface, which facilitates the ejection of the product 44 from the push column 11. Each of the four corners of the ejector plate 7 is equipped with an elastic guide. The elastic guide includes a compression spring 28 and a guide rod 29. One end of the guide rod 29 is fixed to the ejector plate 7 and the guide rod 29 moves through the moving mold 1. The compression spring 28 is sleeved on the guide rod 29 and the two ends of the compression spring 28 are fixed to the ejector plate 7 and the moving mold 1, respectively. When the ejector plate 7 moves the ejector pin 8, the guide rod 29 moves on the moving mold 1 and the compression spring 28 is compressed. The elastic guide improves the stability of the product 44 when it moves. The fixed mold 2 is provided with a glue inlet 30, which is fixedly connected to the guide pipe 31. The guide pipe 31 is fixedly connected to the diversion pipe 32, and the diversion pipe 32 is fixedly connected to multiple input pipes 45. The ends of the multiple input pipes 45 away from the diversion pipe 32 all extend to the fixed core 4. After the moving mold 1 and the fixed mold 2 are closed, the melt medium is introduced into the glue inlet 30, and then diverted to the multiple input pipes 45 through the diversion pipe 32, and then input into the mold cavity through the input pipes 45 to realize the glue injection operation. The fixed mold 2 is also equipped with a movable block 33. One end of the movable block 33 is located on the docking fixed base 3 and is fixedly connected to the fixed core 4. The fifth cooling pipe 37 is installed on the movable block 33. The second slider 18 has a docking groove 34 at the position corresponding to the movable block 33. Part of the movable block 33 can be moved into the docking groove 34. A wear-resistant block 35 is fixedly connected to the end of the movable block 33 near the docking base 3. The wear-resistant block 35 is added in front of the movable block 33 to ensure the fit and wear of the production mold core as a spare part. The entire process of mold part removal is as follows: After the mold is opened, the cavity movable block 33 is replaced, and the first slider 17, the second slider 18, the third slider 19 and the fourth slider 20 on the four sides slide out, and the robot arm takes out the product 44.
[0022] The circuits and controls involved in this utility model are all existing technologies, and will not be described in detail here.
[0023] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.
Claims
1. An injection mold for an industrial electrical control insert frame, characterized in that, The system includes a moving mold (1) and a fixed mold (2). A docking base (3) is installed on the fixed mold (2), and a fixed core (4) is also installed on the fixed mold (2). A docking moving base (5) is installed on the moving mold (1), and a moving core (6) is installed on the moving mold (1) inside the docking moving base (5). A hollow ejector plate (7) is also installed on the moving mold (1), and an ejector pin (8) is fixed on the ejector plate (7). One end of the ejector pin (8) passes through the mold. Inside the through hole (9) of the moving core (6), a placement groove (10) is provided at the end of the ejector pin (8) away from the ejector plate (7). A pusher pin (11) is slidably arranged in the placement groove (10). One end of the pusher pin (11) is located outside the placement groove (10) and has a frustum-shaped structure. The frustum-shaped structure can be fitted into the opening of the through hole (9). A spring (12) is fixed in the placement groove (10). One end of the spring (12) is fixed on the pusher pin (11). The ejector pin (8) is also fixed with a vent pipe (13). One end of the vent pipe (13) is fixedly connected to the ejector plate (7), and the other end of the vent pipe (13) is movably set in the groove (14) opened by the push column (11).
2. The industrial electronic control insert frame injection mold according to claim 1, characterized in that, The moving mold (1) is provided with a first slider (17), a second slider (18), a third slider (19) and a fourth slider (20) around the moving core (6). The first slider (17) and the third slider (19) are provided with transverse protrusions adjacent to the moving core (6). The first slider (17) and the third slider (19) can move laterally. The second slider (18) and the fourth slider (20) are provided with longitudinal protrusions adjacent to the moving core (6).
3. The industrial electronic control insert frame injection mold according to claim 1, characterized in that, The outer wall of the push column (11) is fixed with a guide block (21), and the guide block (21) is slidably disposed in the guide groove (22) opened on the inner wall of the placement groove (10).
4. The industrial electrical control insert frame injection mold according to claim 2, characterized in that, The first slider (17), the second slider (18), the third slider (19), and the fourth slider (20) are respectively provided with a first cooling pipe (23), a second cooling pipe (24), a third cooling pipe (25), and a fourth cooling pipe (26).
5. The industrial electrical control insert frame injection mold according to claim 1, characterized in that, The moving part (6) is provided with an ejector hole (27) at the end of the moving part (6) away from the docking base (5) and at the position corresponding to the push column (11).
6. The industrial electronic control insert frame injection mold according to claim 1, characterized in that, The four corners of the ejector plate (7) are equipped with elastic guides. The elastic guides include compression springs (28) and guide rods (29). One end of the guide rod (29) is fixed on the ejector plate (7), and the guide rod (29) moves through the moving mold (1). The compression spring (28) is sleeved on the guide rod (29), and the two ends of the compression spring (28) are fixed on the ejector plate (7) and the moving mold (1) respectively.
7. The industrial electrical control insert frame injection mold according to claim 1, characterized in that... The fixed mold (2) is provided with a glue inlet (30), which is fixedly connected to the guide pipe (31). A branch pipe (32) is fixedly connected to the guide pipe (31), and multiple input pipes (45) are fixedly connected to the branch pipe (32). The ends of the multiple input pipes (45) away from the branch pipe (32) all extend to the fixed core (4).
8. The industrial electronic control insert frame injection mold according to claim 2, characterized in that, The fixed mold (2) is also equipped with a movable block (33), one end of which is located on the docking fixed base (3) and is fixedly connected to the fixed core (4).
9. The industrial electronic control insert frame injection mold according to claim 8, characterized in that, The second slider (18) has a docking groove (34) at the position corresponding to the movable block (33). Part of the structure of the movable block (33) can be moved into the docking groove (34). A wear-resistant block (35) is fixedly connected to the end of the movable block (33) near the docking base (3).