Post-pad mold flexible demolding auxiliary equipment
By designing a flexible demolding auxiliary device for the rear-mounted mold, the filter can be quickly disassembled and assembled using a lever and rotating disk assembly. Combined with the synergistic effect of the airbag and hydraulic cylinder, the problem of complex filter disassembly is solved, the equipment operating efficiency and cooling effect are improved, the mold and product are protected, and the service life is extended.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU GUORUISEN PLASTIC MOLD CO LTD
- Filing Date
- 2025-08-17
- Publication Date
- 2026-07-21
Smart Images

Figure CN224527750U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mold manufacturing and molding technology, and in particular to a flexible demolding auxiliary device for rear pad molds. Background Technology
[0002] A flexible demolding aid for rear pad molds is a device used to help rear pad molds achieve flexible demolding. It typically consists of a demolding mechanism, a drive system, and a control system. Through controlled operation, it can gently remove the product from the mold, reducing damage to the product during demolding, improving product quality and production efficiency. It is widely used in the production process of rear pad molds in industries such as automotive and electronics.
[0003] The flexible demolding auxiliary equipment for rear-mounted molds mainly utilizes flexible materials or mechanisms to assist in demolding. During demolding, the flexible components of the equipment contact the rear-mounted mold and the product, applying uniform force to overcome the adhesive and frictional forces between the product and the mold. Simultaneously, the flexible components can adapt to changes in the shape and size of the product, avoiding damage and thus achieving a smooth and efficient demolding process.
[0004] In existing technologies, the disassembly of filters in the cooling process of demolding auxiliary equipment is relatively complex, which greatly increases maintenance time and cost, and it is difficult to ensure timely cleaning and replacement. This leads to increased energy consumption and poor cooling effect, causing key components of the equipment to work in a high-temperature environment, accelerating component aging and increasing the possibility of equipment failure. Therefore, a flexible demolding auxiliary equipment with a rear pad mold is proposed to solve the above problems. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a flexible demolding auxiliary device for rear-mounted pad molds, which aims to improve the problems in the existing technology where filter disassembly is relatively complicated, greatly increasing maintenance time and cost, and making it difficult to ensure timely cleaning and replacement, resulting in increased energy consumption, poor cooling effect, and causing key components of the equipment to work in a high-temperature environment, accelerating component aging and increasing the possibility of equipment failure.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A flexible demolding auxiliary device for a rear-mounted mold includes a mold block. Multiple water inlet pipes are fixedly connected to the front side of the mold block. A water pipe is fixedly connected to the other end of each water inlet pipe. A filter is installed on the front side of each water pipe. Protective covers are installed on the front and rear sides of the filter. A lever is slidably connected inside the protective cover. A rotating disk is fixedly connected to the other end of the lever. Multiple sliding columns are slidably connected inside the rotating disk. A movable plate is fixedly connected to the outer side of each sliding column. A fixed ring is slidably connected to the other end of each sliding column. A movable rod is slidably connected inside the fixed ring. A rotating rod is rotatably connected inside the lever. A spring clip is installed on the outer side of the rotating rod. An ejection assembly for easy demolding is provided on the left side of the mold block.
[0008] As a further description of the above technical solution:
[0009] The ejection assembly includes a sliding rod, the right side of which is slidably connected to the inside of the model block. The other end of the sliding rod is fixedly connected to a top plate. A connecting column is slidably connected inside the top plate. A push plate is fixedly connected to the other end of the connecting column. A hydraulic cylinder is fixedly connected to the left side of the push plate. Two fixing blocks are fixedly connected to the front side of the push plate. A V-shaped rod is rotatably connected inside the two fixing blocks. Multiple push rods are fixedly connected to the right side of the top plate. An air bladder is fixedly connected inside the model block. An external air pipe is fixedly connected to the top of the air bladder.
[0010] As a further description of the above technical solution:
[0011] A sealing ring is installed on the outside of the filter, and the inside of the sealing ring is installed on the inside of the plurality of movable plates. The far side of the protective cover is fixedly connected to the near side of the water pipe.
[0012] As a further description of the above technical solution:
[0013] A second sealing ring is installed on the opposite side of the filter, and the outer side of the second sealing ring is installed on the inner side of the water pipe. The other end of the moving rod is fixedly connected to the front side of the rotating disk.
[0014] As a further description of the above technical solution:
[0015] The outer side of the rotating disk is slidably connected to the inside of the protective cover, and the outer side of the fixing ring is fixedly connected to the inside of the protective cover;
[0016] As a further description of the above technical solution:
[0017] The rear side of the fixed ring is slidably connected to the front side of the movable plate, and the rear side of the movable plate is slidably connected to the front side of the rotating disk.
[0018] As a further description of the above technical solution:
[0019] The outer side of the push rod is slidably connected to the inside of the model block, the left side of the V-shaped rod is in contact with the right side of the push plate, and the right side of the hydraulic cylinder is slidably connected to a U-shaped block;
[0020] As a further description of the above technical solution:
[0021] The rotating disk has multiple grooves inside, and the outer side of the sliding column is slidably connected to the inside of the grooves.
[0022] This utility model has the following beneficial effects:
[0023] 1. In this utility model, the operator moves the lever to rotate the rotating disk, causing the sliding column in the groove of the rotating disk to move accordingly, pushing the moving plate inward along the sliding groove of the fixed ring to tighten the sealing ring. The rotating rod is then engaged with the spring clip to fix the position of the moving plate. Reversing the lever moves the moving plate outward, allowing for quick installation and removal of the filter. This assembly requires no tools, significantly reducing maintenance time and improving equipment operating efficiency.
[0024] 2. In this utility model, after the machine is started, the external air pipe introduces compressed air into the airbag. The airbag expands to initially separate the product from the mold. At the same time, the hydraulic cylinder pushes the push plate to the right, and the V-shaped rod pries the top plate to make the ejector rod quickly push out the product. The airbag and the ejector rod work together to combine flexible demolding with mechanical ejection, which not only ensures demolding efficiency, but also protects the mold and the product and extends their service life. Attached Figure Description
[0025] Figure 1 This is a three-dimensional schematic diagram of the flexible demolding auxiliary device for the rear pad mold proposed in this utility model;
[0026] Figure 2 This is a schematic diagram of the structure of the protective cover of the flexible demolding auxiliary equipment for the rear pad mold proposed in this utility model;
[0027] Figure 3 This is a schematic diagram of the rotating disk of the flexible demolding auxiliary device for the rear pad mold proposed in this utility model;
[0028] Figure 4 This is a schematic diagram of the top plate of the flexible demolding auxiliary device for the rear pad mold proposed in this utility model.
[0029] Legend:
[0030] 1. Model block; 2. Inlet pipe; 3. Water pipe; 4. Protective cover; 5. Lever; 6. Rotating disc; 7. Sliding column; 8. Moving plate; 9. Fixing ring; 10. Moving rod; 11. Sealing ring one; 12. Rotating rod; 13. Spring clip; 14. Filter; 15. Sealing ring two; 16. Airbag; 17. External air pipe; 18. Sliding rod; 19. Top plate; 20. Push plate; 21. Hydraulic cylinder; 22. Fixing block; 23. V-shaped rod; 24. Connecting column; 25. Top rod; 26. U-shaped 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] Reference Figures 1 to 3 This utility model provides an embodiment of a flexible demolding auxiliary device for a rear-mounted mold, comprising a mold block 1. Multiple water inlet pipes 2 are fixedly connected to the front side of the mold block 1. The water inlet pipes 2 introduce coolant into the mold block 1, providing a channel for mold cooling. Multiple water inlet pipes 2 ensure more even distribution of coolant and guarantee the cooling effect. A water passage pipe 3 is fixedly connected to the other end of each water inlet pipe 2. The water passage pipe 3 is responsible for supplying the water inlet pipes 2 with coolant filtered by a filter 14, preventing impurities in the coolant from entering the mold block 1 and affecting the normal operation of the cooling process and the cooling effect of the mold.
[0033] A filter 14 is installed on the front side of the water pipe 3. The filter 14 is used to intercept impurities in the coolant and ensure the cleanliness of the coolant. Protective covers 4 are installed on the front and rear sides of the filter 14. The protective covers 4 provide a platform for the installation of the internal components. A lever 5 is slidably connected inside the protective cover 4, allowing the protective cover 4 to slide back and forth within the protective cover 4. A rotating disk 6 is fixedly connected to the other end of the lever 5. When it is necessary to remove the filter 14, the lever 5 is moved, which drives the rotating disk 6 connected to it to move. Multiple sliding columns 7 are slidably connected inside the rotating disk 6. Movable plates 8 are fixedly connected to the outer sides of each sliding column 7. The multiple sliding columns 7 slidably connected inside the rotating disk 6 will slide inside the rotating disk 6 as the rotating disk 6 moves, thereby driving the movable plates 8 fixed to the outer sides of the sliding columns 7 to move.
[0034] Multiple sliding columns 7 are slidably connected to a fixed ring 9 at their other ends. The fixed ring 9, slidably connected to the other end of the sliding column 7, has a sliding groove inside to limit the sliding range of the sliding column 7, ensuring the stability and accuracy of the sliding column 7's movement. A moving rod 10 is slidably connected inside the fixed ring 9. The moving rod 10 slides within the arc-shaped groove inside the fixed ring 9 to limit the movement range of the rotating disk 6. A rotating rod 12 is rotatably connected inside the lever 5. A spring clip 13 is installed on the outside of the rotating rod 12. The rotating rod 12 can rotate within the lever 5. When disassembling the filter 14, the spring clip 13 can be opened or closed by rotating the rotating rod 12, thereby clamping or releasing the filter 14, achieving quick disassembly and installation of the filter 14. An ejection assembly for easy demolding is provided on the left side of the model block 1.
[0035] Reference Figure 1 , Figure 2 , Figure 4 The ejection assembly includes a sliding rod 18, with its right side slidably connected to the inside of the mold block 1. The other end of the sliding rod 18 is fixedly connected to a top plate 19. The sliding rod 18 serves as a guide and support. When the sliding rod 18 slides within the mold block 1, it drives the top plate 19, fixed at its other end, to move synchronously, transmitting the thrust required for demolding to the top plate 19. A connecting post 24 is slidably connected inside the top plate 19, with a push plate 20 fixedly connected to the other end of the connecting post 24. The connecting post 24, with one end fixed to the push plate 20 and the other end sliding within the top plate 19, allows the top plate 19 to move flexibly under the influence of the push plate 20, while ensuring a stable relative position between the push plate 20 and the top plate 19, thus ensuring effective transmission of the demolding force.
[0036] A hydraulic cylinder 21 is fixedly connected to the left side of the push plate 20. The hydraulic cylinder 21 generates a strong and stable thrust through hydraulic drive, which pushes the push plate 20 to move, thereby driving the top plate 19, sliding rod 18 and ejector rod 25 to work together. Two fixed blocks 22 are fixedly connected to the front side of the push plate 20. V-shaped rods 23 are rotatably connected inside the two fixed blocks 22. The V-shaped rods 23 can rotate inside the fixed blocks 22. During demolding, the V-shaped rods 23 can accelerate the push of the top plate 19 out by changing their own angle. Multiple ejector rods 25 are fixedly connected to the right side of the top plate 19. An air bladder 16 is fixedly connected inside the model block 1. An external air pipe 17 is fixedly connected to the top of the air bladder 16. The external air pipe 17 is connected to the top of the air bladder 16. Its working principle is based on gas inflation and deflation. When demolding is required, air is injected into the airbag 16 through the external air pipe 17. The expansion of the airbag 16 generates thrust, which initially separates the molded product from the mold block 1, creating favorable conditions for subsequent mechanical ejection and reducing ejection resistance. At the same time, the flexible contact of the airbag 16 can avoid damaging the surface of the product.
[0037] Reference Figures 2 to 4A sealing ring 11 is installed on the outer side of the filter 14, and the inner side of the sealing ring 11 is installed on the inner side of multiple movable plates 8. The core function of the sealing ring 11 is to ensure the sealing of the connection between the filter 14 and the disassembly device, preventing coolant leakage at the connection and ensuring the normal operation of the cooling process. The protective cover 4 is fixedly connected to the adjacent side of the water pipe 3 on the opposite side. The protective cover 4 provides protection for the internal components such as the filter 14 and the disassembly device, and also serves as a mounting carrier for components such as the rotating disk 6 and the fixing ring 9. A sealing ring 15 is installed on the opposite side of the filter 14, and the outer side of the sealing ring 15 is installed on the inner side of the water pipe 3. The sealing ring 15 is used to ensure the sealing of the connection between the filter 14 and the water pipe 3, preventing coolant leakage from this point. Together with the sealing ring 11, it forms a double sealing structure, further improving the sealing performance and reliability of the cooling process.
[0038] The other end of the moving rod 10 is fixedly connected to the front side of the rotating disk 6. The outer side of the rotating disk 6 is slidably connected to the inside of the protective cover 4, which provides space for the movement of the rotating disk 6. The outer side of the fixing ring 9 is fixedly connected to the inside of the protective cover 4. The rear side of the fixing ring 9 is slidably connected to the front side of the moving plate 8, and the rear side of the moving plate 8 is slidably connected to the front side of the rotating disk 6. The outer side of the ejector rod 25 is slidably connected to the inside of the mold block 1. The ejector rod 25 directly contacts the product and applies ejection pressure. Driven by the top plate 19, the ejector rod 25 extends along the sliding channel in the mold block 1, transmitting the demolding force to the surface of the product. Multiple ejector rods 25 work together to disperse the ejection pressure, preventing the product from being damaged due to excessive local force, and achieving smooth and efficient demolding. The left side of the V-shaped rod 23 contacts the right side of the push plate 20, and the right side of the hydraulic cylinder 21 is slidably connected to the U-shaped block 26. The rotating disk 6 has multiple grooves inside, and the outer side of the sliding column 7 is slidably connected to the inside of the grooves. The grooves apply force to the movement of the sliding column 7 and provide guidance for its movement.
[0039] Working principle: When the operator moves lever 5, lever 5, under the action of external force, drives rotating disk 6 to rotate. The movement of rotating disk 6 causes sliding column 7, which is slidably connected inside its groove, to move. The movement of sliding column 7 causes moving plate 8 to slide along the sliding groove inside fixed ring 9 and tighten inward. The tightened moving plate 8 applies pressure to the sealing ring 11 on the outside of filter 14. At this time, rotating rod 12 is pressed into the inside of spring clip 13, so that moving plate 8 is tightly fixed to the outside of sealing ring 11. Rotating rod 12 is removed and lever 5 is rotated to the other side. The above series of components can make moving plate 8 move outward. At this time, filter 14 can be removed to complete the convenient installation and assembly of filter 14, achieving the effect of easy disassembly. This allows maintenance personnel to quickly remove filter 14 without using complicated tools or spending a lot of time to disconnect filter 14 from cooling device, thereby shortening maintenance time and improving the overall operating efficiency of equipment.
[0040] When the machine is started, the product inside the external air pipe 17 is formed. At this time, the external air pipe 17 transmits the gas generated in the air compressor to the air bag 16. The air bag 16 inflates and undergoes a certain elastic deformation, causing the product to initially separate from the mold. Then, the hydraulic cylinder 21 starts and begins to move. The movement of the hydraulic cylinder 21 drives the push plate 20 to move to the right. At this time, the V-shaped rod 23 contacts the inner side of the U-shaped block 26 and uses the contact point as a fulcrum to pry the top plate 19 to move to the right at an accelerated speed, thereby causing the push rod 25 to push out the product. The air bag 16 and the push rod 25 work together to protect the mold and the product from damage by applying force flexibly and evenly and buffering mechanical impact through the air bag 16, thus extending the service life of both.
[0041] 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 flexible demolding auxiliary device for a rear-mounted pad mold, comprising a mold block (1), characterized in that: Multiple water inlet pipes (2) are fixedly connected to the front side of the model block (1). A water pipe (3) is fixedly connected to the other end of the multiple water inlet pipes (2). A filter (14) is installed on the front side of the water pipe (3). A protective cover (4) is installed on the front and back sides of the filter (14). A lever (5) is slidably connected inside the protective cover (4). A rotating disk (6) is fixedly connected to the other end of the lever (5). Multiple sliding columns (7) are slidably connected inside the rotating disk (6). A moving plate (8) is fixedly connected to the outer side of each of the multiple sliding columns (7). A fixing ring (9) is slidably connected to the other end of the multiple sliding columns (7). A moving rod (10) is slidably connected inside the fixing ring (9). A rotating rod (12) is rotatably connected inside the lever (5). A spring clip (13) is installed on the outer side of the rotating rod (12). An ejection assembly for easy demolding is provided on the left side of the model block (1).
2. The flexible demolding auxiliary equipment for the rear pad mold according to claim 1, characterized in that: The ejection assembly includes a sliding rod (18), the right side of which is slidably connected to the inside of the model block (1), the other end of which is fixedly connected to a top plate (19), the inside of which is slidably connected to a connecting column (24), the other end of which is fixedly connected to a push plate (20), the left side of which is fixedly connected to a hydraulic cylinder (21), the front side of which is fixedly connected to two fixing blocks (22), the inside of which is rotatably connected to a V-shaped rod (23), the right side of which is fixedly connected to multiple push rods (25), the inside of which is fixedly connected to an airbag (16), and the top of which is fixedly connected to an external air pipe (17).
3. The flexible demolding auxiliary equipment for the rear pad mold according to claim 1, characterized in that: A sealing ring (11) is installed on the outside of the filter (14), and the inner side of the sealing ring (11) is installed on the inner side of the plurality of movable plates (8). The far side of the protective cover (4) is fixedly connected to the near side of the water pipe (3).
4. The flexible demolding auxiliary device for the rear pad mold according to claim 1, characterized in that: A sealing ring 2 (15) is installed on the opposite side of the filter (14), and the outer side of the sealing ring 2 (15) is installed on the inner side of the water pipe (3). The other end of the moving rod (10) is fixedly connected to the front side of the rotating disk (6).
5. The flexible demolding auxiliary equipment for the rear pad mold according to claim 1, characterized in that: The outer side of the rotating disk (6) is slidably connected to the inside of the protective cover (4), and the outer side of the fixing ring (9) is fixedly connected to the inside of the protective cover (4).
6. The flexible demolding auxiliary equipment for the rear pad mold according to claim 1, characterized in that: The rear side of the fixed ring (9) is slidably connected to the front side of the movable plate (8), and the rear side of the movable plate (8) is slidably connected to the front side of the rotating disk (6).
7. The flexible demolding auxiliary equipment for the rear pad mold according to claim 2, characterized in that: The outer side of the top rod (25) is slidably connected to the inside of the model block (1), the left side of the V-shaped rod (23) is in contact with the right side of the push plate (20), and the right side of the hydraulic cylinder (21) is slidably connected to the U-shaped block (26).
8. The flexible demolding auxiliary device for the rear pad mold according to claim 1, characterized in that: The rotating disk (6) has multiple grooves inside, and the outer side of the sliding column (7) is slidably connected to the inside of the grooves.