A convertible work stretch die
By designing a convertible working stretching die, the problems of adaptability and change efficiency of traditional dies are solved, achieving rapid conversion and stability, improving stretching quality and die durability, and reducing production costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SIPING QIFENG MOULD TECH CO LTD
- Filing Date
- 2025-07-10
- Publication Date
- 2026-08-04
AI Technical Summary
Traditional stretching dies have a fixed structure, making it difficult to adapt to the stretching requirements of workpieces of different sizes and shapes. Furthermore, changing working parts is cumbersome, affecting production efficiency. They also lack durability and stability, increasing production costs.
A convertible working stretching die was designed. Through the cooperation of a first mounting plate, a second mounting plate, an upper conversion plate, a lower conversion plate, an upper die, a lower die, a sealing ring, and a buffer spring, the die can be quickly converted and adapted to the stretching requirements of workpieces of different sizes and shapes. The installation and disassembly are improved by the structure of mounting cylinder, limit rod, connecting plate, and shock-absorbing spring.
It enables rapid mold conversion and adaptability to stretching of workpieces of different sizes and shapes, improves production efficiency, ensures stretching quality and mold durability, reduces mold deformation and damage during use, and lowers production costs.
Smart Images
Figure CN224586774U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of stretching die technology, specifically a convertible working stretching die. Background Technology
[0002] A stretching die is a mold used to stretch sheet metal or other plastic materials. In a stretching die, the blanking and stretching processes of the workpiece are accomplished through a stripping assembly and a retraction assembly. This die design can effectively reduce production costs and improve work efficiency.
[0003] However, traditional stretching dies still have certain shortcomings in use:
[0004] 1. The structure of the mold is relatively fixed, making it difficult to adapt to the stretching requirements of workpieces of different sizes and shapes. In addition, the operation of traditional stretching molds is often cumbersome and time-consuming when changing working parts, which affects production efficiency.
[0005] 2. At the same time, the durability and stability of the molds need to be improved. They are prone to deformation or damage after long-term use. These problems limit the application range of traditional stretching molds and increase the production costs of enterprises. Utility Model Content
[0006] The purpose of this utility model is to provide a convertible working stretching die to solve the problems mentioned in the background art, which are that the structure of the die is relatively fixed and it is difficult to adapt to the stretching requirements of workpieces of different sizes and shapes. In addition, the operation of traditional stretching dies is often cumbersome and time-consuming when changing working parts, which affects production efficiency. At the same time, the durability and stability of the die need to be improved. After long-term use, it is easy to deform or be damaged. These problems limit the application range of traditional stretching dies and increase the production costs of enterprises.
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] A convertible working stretching die includes a first mounting plate, a second mounting plate at the bottom of the first mounting plate, an upper conversion plate at the bottom of the first mounting plate, a sealing ring on the side of the upper conversion plate, the sealing ring being fixedly connected to the first mounting plate, a telescopic rod fixedly connected to the bottom of the first mounting plate, an upper template fixedly connected to the bottom of the telescopic rod, a buffer spring elastically connected between the upper template and the first mounting plate, a damping rod disposed within the buffer spring, the upper template being located within the upper conversion plate, a lower conversion plate fixedly connected to the top of the second mounting plate, a lower template disposed at the top of the second mounting plate, and a mounting rod fixedly connected to the top of the first mounting plate.
[0009] As a preferred embodiment of this utility model, the lower template is located inside the lower conversion plate, the top of the lower conversion plate is snapped with a mounting pad, the mounting pad is located on the top of the lower template, the top of the lower conversion plate is fixedly connected to a connecting plate, the top of the connecting plate is fixedly connected to a shock-absorbing spring, the shock-absorbing spring is provided with a damping rod, the bottom of the first mounting plate is fixedly connected to a fixing rod, and the bottom of the fixing rod is inserted into the connecting plate.
[0010] As a preferred embodiment of this utility model, the bottom of the first mounting plate is provided with a mounting hole, and a mounting cylinder is inserted into the mounting hole. The top of the second mounting plate is fixedly connected with a limiting rod, which extends into the mounting cylinder and is slidably connected to the mounting cylinder.
[0011] As a preferred embodiment of this utility model, the top of the first mounting plate is provided with a positioning rod and a fixing screw, the positioning rod passes through the first mounting plate and extends into the upper conversion plate, and the positioning rod is threadedly connected to the first mounting plate.
[0012] As a preferred embodiment of this utility model, the fixing screw passes through the first mounting plate and extends into the sealing ring, and the fixing screw is threadedly connected to the first mounting plate.
[0013] As a preferred embodiment of this utility model, a mounting screw is fixedly connected to the bottom of the second mounting plate. The mounting screw passes through the second mounting plate and extends into the lower template. The mounting screw is threadedly connected to the second mounting plate.
[0014] As a preferred embodiment of this utility model, a limiting plate is provided at the bottom of the first mounting plate. The limiting plate is L-shaped, and the side of the limiting plate abuts against the bottom of the mounting cylinder.
[0015] As a preferred embodiment of this utility model, a fixing bolt is provided at the bottom of the limiting plate. The fixing bolt passes through the limiting plate and extends into the first mounting plate. The fixing bolt is threadedly connected to the limiting plate.
[0016] Compared with the prior art, the beneficial effects of this utility model are:
[0017] 1. In this utility model, the combined use of a first mounting plate, a second mounting plate, an upper conversion plate, a lower conversion plate, an upper mold, a lower mold, a sealing ring, and a buffer spring enables rapid mold conversion and adaptability to the stretching requirements of workpieces of different sizes and shapes. The design of the upper and lower conversion plates facilitates control over the usable area of the upper and lower molds. The upper and lower molds ensure that the molds are not easily deformed or damaged during long-term use. The sealing ring effectively prevents leakage during use, improving the quality of the stretched workpiece. The buffer spring provides cushioning and shock absorption, further protecting the mold and workpiece and extending the service life of the mold.
[0018] 2. In this utility model, by using the installation cylinder, limiting rod, lower conversion plate, connecting plate, shock-absorbing spring, and fixing rod in combination, the convenience and stability of the mold during installation and disassembly are achieved. The installation cylinder allows the limiting rod to be inserted securely, avoiding shaking or misalignment of the mold during use, and facilitates the tight connection between the lower conversion plate and the upper conversion plate. The shock-absorbing spring not only plays a role in buffering and shock absorption, but also effectively absorbs the impact force generated during stretching, further protecting the mold and the workpiece, and improving the quality of the stretched workpiece. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0020] Figure 2 This is an exploded view of the first and second mounting plates of this utility model.
[0021] Figure 3 This is an exploded view of the bottom structure of the first mounting plate of this utility model;
[0022] Figure 4 This is an exploded view of the top structure of the second mounting plate of this utility model.
[0023] In the diagram: 1. First mounting plate; 2. Second mounting plate; 3. Mounting rod; 4. Mounting hole; 5. Positioning rod; 6. Limiting rod; 7. Fixing screw; 8. Upper conversion plate; 9. Buffer spring; 10. Fixing rod; 11. Telescopic rod; 12. Mounting cylinder; 13. Limiting plate; 14. Fixing bolt; 15. Sealing ring; 16. Upper template; 17. Lower conversion plate; 18. Connecting plate; 19. Shock-absorbing spring; 20. Mounting screw; 21. Mounting pad; 22. Lower template. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0025] For examples, please refer to Figures 1-4 This utility model provides a technical solution:
[0026] A convertible working stretching die includes a first mounting plate 1, a second mounting plate 2 at the bottom of the first mounting plate 1, an upper conversion plate 8 at the bottom of the first mounting plate 1, a sealing ring 15 on the side of the upper conversion plate 8, the sealing ring 15 being fixedly connected to the first mounting plate 1, a telescopic rod 11 fixedly connected to the bottom of the first mounting plate 1, an upper template 16 fixedly connected to the bottom of the telescopic rod 11, a buffer spring 9 elastically connected between the upper template 16 and the first mounting plate 1, a damping rod inside the buffer spring 9, the upper template 16 being located inside the upper conversion plate 8, a lower conversion plate 17 fixedly connected to the top of the second mounting plate 2, a lower template 22 at the top of the second mounting plate 2, a mounting rod 3 fixedly connected to the top of the first mounting plate 1, a positioning rod 5 and a fixing screw 7 respectively provided on the top of the first mounting plate 1, the positioning rod 5 penetrating the first mounting plate 1 and extending into the upper conversion plate 8, the positioning rod 5 being threadedly connected to the first mounting plate 1.
[0027] Among them, the mold can be quickly changed and adapted to the stretching requirements of workpieces of different sizes and shapes. The design of the upper conversion plate 8 and the lower conversion plate 17 makes it easy to control the usable area of the upper mold 16 and the lower mold 22.
[0028] In this embodiment, as Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lower template 22 is located inside the lower conversion plate 17. A mounting pad 21 is snapped onto the top of the lower conversion plate 17, and the mounting pad 21 is located on top of the lower template 22. A connecting plate 18 is fixedly connected to the top of the lower conversion plate 17, and a shock-absorbing spring 19 is fixedly connected to the top of the connecting plate 18. A damping rod is installed inside the shock-absorbing spring 19. A fixing rod 10 is fixedly connected to the bottom of the first mounting plate 1, and the bottom of the fixing rod 10 is inserted into the connecting plate 18. A mounting hole 4 is opened at the bottom of the first mounting plate 1, and a mounting cylinder 12 is inserted into the mounting hole 4. A limiting rod 6 is fixedly connected to the top of the second mounting plate 2, and the limiting rod 6 extends into the mounting cylinder 12 and slides with the mounting cylinder 12. Next, the fixing screw 7 passes through the first mounting plate 1 and extends into the sealing ring 15. The fixing screw 7 is threadedly connected to the first mounting plate 1. The bottom of the second mounting plate 2 is fixedly connected with the mounting screw 20. The mounting screw 20 passes through the second mounting plate 2 and extends into the lower template 22. The mounting screw 20 is threadedly connected to the second mounting plate 2. The bottom of the first mounting plate 1 is provided with a limit plate 13. The limit plate 13 is L-shaped. The side of the limit plate 13 abuts against the bottom of the mounting cylinder 12. The bottom of the limit plate 13 is provided with a fixing bolt 14. The fixing bolt 14 passes through the limit plate 13 and extends into the first mounting plate 1. The fixing bolt 14 is threadedly connected to the limit plate 13.
[0029] This design achieves convenience and stability during mold installation and disassembly. The mounting cylinder 12 ensures that the limiting rod 6 can be inserted securely, preventing the mold from shaking or misaligning during use.
[0030] The working process of this utility model is as follows: When using the convertible stretching die designed in this solution, first check whether the device is working properly, confirm that all components are undamaged and firmly installed, place the workpiece to be stretched on the lower template 22, ensure the workpiece is accurately positioned, and avoid deviations during the stretching process. The lower template 22 is tightly fixed by the mounting screw 20 to form a stretching space. The stretching equipment can then be started, causing the upper template 16 to move downward along the direction of the limiting rod 6. The buffer spring 9 and the shock-absorbing spring 19 play a buffering and shock-absorbing role, protecting the die and workpiece from damage. During the stretching process, the positioning rod 5 and the limiting rod 6 play a positioning and limiting role, ensuring the accuracy and stability of the stretching. When the stretching reaches the preset stroke, the stretching equipment stops working, and the stretched workpiece is removed from the die. If it is necessary to change to a different workpiece or perform a different type of stretching operation, the upper conversion plate 8 and the lower conversion plate 17 can be disassembled and replaced, and their positions adjusted, to achieve rapid die conversion and adapt to different needs.
[0031] 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 convertible working stretch-die comprising a first mounting plate (1), characterized in that: The bottom of the first mounting plate (1) is provided with a second mounting plate (2), the bottom of the first mounting plate (1) is provided with an upper conversion plate (8), the side of the upper conversion plate (8) is provided with a sealing ring (15), the sealing ring (15) is fixedly connected to the first mounting plate (1), the bottom of the first mounting plate (1) is fixedly connected with a telescopic rod (11), the bottom of the telescopic rod (11) is fixedly connected with an upper template (16), the upper template (16) and the first mounting plate (1) are elastically connected with a buffer spring (9), the buffer spring (9) is provided with a damping rod, the upper template (16) is located inside the upper conversion plate (8), the top of the second mounting plate (2) is fixedly connected with a lower conversion plate (17), the top of the second mounting plate (2) is provided with a lower template (22), and the top of the first mounting plate (1) is fixedly connected with a mounting rod (3).
2. A convertible working draw die according to claim 1 wherein, The lower template (22) is located inside the lower conversion plate (17). The top of the lower conversion plate (17) is fitted with a mounting pad (21). The mounting pad (21) is located on the top of the lower template (22). The top of the lower conversion plate (17) is fixedly connected to a connecting plate (18). The top of the connecting plate (18) is fixedly connected to a shock-absorbing spring (19). The shock-absorbing spring (19) is provided with a damping rod. The bottom of the first mounting plate (1) is fixedly connected to a fixing rod (10). The bottom of the fixing rod (10) is inserted into the connecting plate (18).
3. A convertible working draw die according to claim 1 wherein, The first mounting plate (1) has a mounting hole (4) at its bottom, and a mounting cylinder (12) is inserted into the mounting hole (4). The second mounting plate (2) has a limiting rod (6) fixedly connected to its top, and the limiting rod (6) extends into the mounting cylinder (12) and slides in connection with the mounting cylinder (12).
4. A convertible working draw die according to claim 1 wherein, The top of the first mounting plate (1) is provided with a positioning rod (5) and a fixing screw (7). The positioning rod (5) passes through the first mounting plate (1) and extends into the upper conversion plate (8). The positioning rod (5) is threadedly connected to the first mounting plate (1).
5. A convertible working draw die according to claim 4 wherein, The fixing screw (7) passes through the first mounting plate (1) and extends into the sealing ring (15), and the fixing screw (7) is threadedly connected to the first mounting plate (1).
6. A convertible working draw die according to claim 1 wherein, The bottom of the second mounting plate (2) is fixedly connected with a mounting screw (20), which passes through the second mounting plate (2) and extends into the lower template (22). The mounting screw (20) is threadedly connected to the second mounting plate (2).
7. A convertible working draw die according to claim 1 wherein, The bottom of the first mounting plate (1) is provided with a limiting plate (13), the limiting plate (13) is L-shaped, and the side of the limiting plate (13) abuts against the bottom of the mounting cylinder (12).
8. A convertible working draw die according to claim 7 wherein, The bottom of the limiting plate (13) is provided with a fixing bolt (14), which passes through the limiting plate (13) and extends into the first mounting plate (1). The fixing bolt (14) is threadedly connected to the limiting plate (13).