Reset mechanism of stamping die
By using a combined inner piston and outer piston in the stamping mold and using compressed air to provide resetting force, the problem of product quality and increased production costs caused by compression spring damage is solved, and a more efficient and reliable stamping mold reset process is achieved.
Patent Information
- Application Number
- CN202421714815.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-19
- Publication Date
- 2025-05-16
- Estimated Expiration
- 2034-07-19
AI Technical Summary
In existing stamping molds, compression springs are prone to damage or breaking after repeated use, resulting in a decrease in product quality and an increase in production costs, and the damage is not easy to detect.
The combined inner piston and outer piston are used, and compressed air is used as the power source to provide a stable and controllable reset force by adjusting the air pressure, ensuring the reset process of the stamping mold is accurate and reliable.
There is no need to consider the service life of the compression spring, which improves production efficiency and product quality, and reduces production costs and maintenance time.
Smart Images
Figure CN222873192U_ABST
Abstract
Description
[Technical field]
[0002] The utility model relates to the technical field of stamping dies, in particular to a reset mechanism of a stamping die. [Background technology]
[0004] Compression springs are a common mechanical component that is often used in stamping dies to provide the necessary reset force to ensure that the die can quickly and accurately return to its initial position after each working cycle, ready for the next stamping. However, as the number of uses increases, the elasticity and load-bearing capacity of the compression spring will gradually decrease during repeated compression and release, eventually leading to damage or breakage.
[0005] The maximum service life of compression springs currently on the market, despite careful design and manufacturing, is usually around 1 million cycles. After exceeding this number of cycles, the risk of compression spring breakage increases significantly, which poses a challenge to the stability and reliability of stamping dies.
[0006] The existing stamping die can punch 220 times per minute for 20 hours, which can reach more than 260,000 times. It is necessary to frequently replace the spring, which will increase the maintenance cost and maintenance time of the die. Figure 3 The damage and breakage of the compression springs set at B and C as shown are often difficult to detect. Usually, they can only be found when the product quality is abnormal or the mold insert is damaged, which will lead to a sudden interruption of production and a large number of unqualified products need to be scrapped, which greatly affects the production efficiency and increases the production cost. [Utility Model Content]
[0008] The utility model aims to provide a reset mechanism for a stamping die, so as to solve the problem that damage and breakage of a compression spring are not easy to detect, resulting in reduced product quality and increased production costs.
[0009] The utility model is realized by the following technical solutions:
[0010] A reset mechanism for a stamping die comprises an inner piston and an outer piston which are arranged in an upper mold component and control the reset of the stamping die by compressed air. The inner piston and the outer piston are respectively connected to an ejector pin component for cooperating with the reset mechanism, and the ejector pin component is connected to a forming component for forming and pressing edges.
[0011] In the reset mechanism of the stamping die as described above, the inner piston and the outer piston slide vertically relative to the upper mold assembly and the forming assembly is controlled to reset through the ejector assembly.
[0012] In the reset mechanism of the stamping die as described above, the ejector assembly includes a first ejector and a second ejector for cooperating with the reset mechanism, and the forming assembly includes a first forming piece for forming and a second forming piece for pressing the edge.
[0013] In the reset mechanism of the stamping die as described above, the first forming part is connected to the first ejector pin, and the second forming part is connected to the second ejector pin.
[0014] In the reset mechanism of the stamping die as described above, the first ejector pin is connected to the inner piston, and the second ejector pin is connected to the outer piston.
[0015] In the reset mechanism of the stamping die as described above, when the upper mold component moves downward relative to the lower mold component, the inner piston and the outer piston drive the first ejector pin to move upward relative to the second ejector pin, thereby forming the material strip through the cooperation of the second forming part with the first forming part.
[0016] As described above, in the reset mechanism of the stamping die, when the upper mold component moves upward relative to the lower mold component, the inner piston and the outer piston drive the first ejector pin and the second ejector pin to move downward relative to the upper mold component, so that the first formed part and the second formed part are reset to the same plane.
[0017] In the reset mechanism of the stamping die as described above, the inner piston is sleeved inside the outer piston, and a first sealing ring is provided between the inner piston and the outer piston to prevent gas leakage.
[0018] In the reset mechanism of the stamping die as described above, a second sealing ring is provided between the outer piston and the upper mold component to prevent gas leakage.
[0019] In the reset mechanism of the stamping die as described above, the outer piston is provided with a sealing groove for accommodating the second sealing ring.
[0020] Compared with the prior art, the utility model has the following advantages:
[0021] The utility model proposes a reset mechanism for a stamping die. First, a combined inner piston and outer piston are adopted, and compressed air is used as a power source. By adjusting the air pressure, a stable and controllable reset force is provided to ensure that the reset process of the stamping die is accurate and reliable, without considering the service life of the compression spring. This can not only improve production efficiency but also reduce production costs. Second, an inner piston, an outer piston, a ejector pin assembly and a forming assembly are combined to accurately and independently control the first forming part and the second forming part. The two work together to improve the working stability of the stamping die. By cooperating with the first forming part through the second forming part, the forming quality of the material strip is improved, thereby improving production efficiency and reducing production costs.
[0022] The reset mechanism of the stamping die of the utility model is simple to use and easy to operate. It adopts a combined inner piston and an outer piston, uses compressed air as a power source, and cooperates with the ejector pin assembly to accurately and independently control the first formed part and the second formed part, thereby improving the forming quality of the material strip, improving production efficiency, and greatly reducing production costs. It solves the current problem that the damage and breakage of the compression spring are not easy to detect, resulting in reduced product quality and increased production costs.
Brief Description of the Drawings
[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.
[0025] Figure 1 It is a structural schematic diagram of the reset mechanism of the stamping die of the utility model;
[0026] Figure 2 for Figure 1 A schematic diagram of the structure of the enlarged;
[0027] Figure 3 It is a schematic diagram of the partial structure of the existing stamping die of the utility model. [Specific implementation method]
[0029] The following is a combination of the embodiments and the attached Figure 1-3 It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.
[0030] Figure 1-3 The reset mechanism of a stamping die shown in the figure includes an inner piston 2 and an outer piston 3 which are arranged in an upper mold component 1 and control the reset of the stamping die by compressed air. The inner piston 2 and the outer piston 3 are respectively connected to a pin assembly 4 for cooperating with the reset mechanism, and the pin assembly 4 is connected to a forming component 5 for forming and pressing.
[0031] Furthermore, the inner piston 2 and the outer piston 3 slide vertically relative to the upper mold component 1 and control the forming component 5 to reset through the ejector component 4 .
[0032] Furthermore, the upper mold assembly 1 includes a cylinder seat 10 for providing compressed air, and the inner piston 2 and the outer piston 3 are arranged in the cylinder seat 10 and slide vertically relative to the cylinder seat 10 .
[0033] In this embodiment, by using a combined inner piston and outer piston, using compressed air as a power source, a stable and controllable reset force is provided by adjusting the air pressure, and the cylinder seat provides sufficient sliding space for the inner piston and the outer piston, so that the two can slide vertically relative to the upper mold component to ensure the accuracy and reliability of the stamping die when resetting, and ensure that the forming component can be completely reset after each working cycle, thereby improving product quality and production efficiency. In addition, this combination of inner and outer pistons does not need to consider the service life of the compression spring, reduces maintenance costs and maintenance time, and greatly reduces production costs.
[0034] Furthermore, the ejector assembly 4 includes a first ejector 41 and a second ejector 42 for cooperating with the resetting mechanism, and the forming assembly 5 includes a first forming piece 51 for forming and a second forming piece 52 for pressing the edge.
[0035] Further, the first forming member 51 is connected to the first ejector pin 41 , and the second forming member 52 is connected to the second ejector pin 42 .
[0036] Further, the first ejector pin 41 is connected to the inner piston 2 , and the second ejector pin 42 is connected to the outer piston 3 .
[0037] In this embodiment, the first formed part and the second formed part are accurately and independently controlled through two combinations of an inner piston, a first ejector pin and a first formed part, and an outer piston, a second ejector pin and a second formed part. The inner and outer pistons cooperate with each other to control the forming components through the cooperation of the first ejector pin and the second ejector pin to improve the working stability of the stamping die.
[0038] Furthermore, when the upper mold component 1 moves downward relative to the lower mold component 9, the inner piston 2 and the outer piston 3 drive the first ejector pin 41 to move upward relative to the second ejector pin 42, and then the second forming part 52 cooperates with the first forming part 51 to form the material strip.
[0039] Furthermore, when the upper mold component 1 moves upward relative to the lower mold component 9, the inner piston 2 and the outer piston 3 drive the first ejector pin 41 and the second ejector pin 42 to move downward relative to the upper mold component 1, so that the first forming part 51 and the second forming part 52 are restored to the same plane.
[0040] In this embodiment, during stamping, the first formed part is precisely controlled by the first ejector through the coordinated action of the inner and outer pistons to improve the accuracy of the strip forming, and the second formed part is precisely controlled by the second ejector to ensure the forming quality of the strip. After the stamping is completed, the first and second formed parts are quickly reset through the coordinated action of the inner and outer pistons to ensure the accuracy and reliability of the stamping die during the next operation, thereby improving production efficiency.
[0041] Furthermore, the inner piston 2 is sleeved inside the outer piston 3 , and a first sealing ring 6 is provided between the inner piston 2 and the outer piston 3 to prevent gas leakage.
[0042] Furthermore, a second sealing ring 7 is provided between the outer piston 3 and the upper mold component 1 to prevent gas leakage.
[0043] In this embodiment, by providing the first sealing ring and the second sealing ring, gas leakage between the inner and outer pistons can be effectively prevented, thereby improving the working stability of the stamping die.
[0044] Furthermore, the outer piston 3 is provided with a sealing groove 8 for accommodating the second sealing ring 7 .
[0045] In this embodiment, by providing the sealing groove, a reliable installation position and sealing space can be provided between the outer piston and the inner wall of the cylinder seat, thereby further improving the sealing performance of the stamping die.
[0046] The reset mechanism of the stamping die of the utility model is simple to use and easy to operate. It adopts a combined inner piston and an outer piston, uses compressed air as a power source, and cooperates with the ejector pin assembly to accurately and independently control the first formed part and the second formed part, thereby improving the forming quality of the material strip, improving production efficiency, and greatly reducing production costs. It solves the current problem that the damage and breakage of the compression spring are not easy to detect, resulting in reduced product quality and increased production costs.
[0047] The above are implementation methods provided in combination with specific content, and it is not considered that the specific implementation of the utility model is limited to these descriptions. At the same time, due to different industry names, it is not limited to the above names, nor is it limited to English names. Any method, structure, etc. similar to or identical to the method, structure, etc. of the utility model, or a number of technical deductions or replacements made on the premise of the concept of the utility model, shall be regarded as the protection scope of the utility model.
Claims
1. A reset mechanism for a stamping die, characterized in that: The invention comprises an inner piston (2) and an outer piston (3) which are arranged in an upper mold component (1) and control the reset of the stamping die by means of compressed air, the inner piston (2) and the outer piston (3) are respectively connected to an ejector pin component (4) for cooperating with the reset mechanism, and the ejector pin component (4) is connected to a forming component (5) for forming and pressing the edge; The ejector assembly (4) comprises a first ejector (41) and a second ejector (42) for cooperating with a reset mechanism, and the forming assembly (5) comprises a first forming piece (51) for forming and a second forming piece (52) for pressing an edge. The first forming part (51) is connected to the first ejector pin (41), and the second forming part (52) is connected to the second ejector pin (42).
2. The reset mechanism of the stamping die according to claim 1, characterized in that: The inner piston (2) and the outer piston (3) slide in a vertical direction relative to the upper mold component (1) and control the forming component (5) to reset via the ejector pin component (4).
3. The reset mechanism of the stamping die according to claim 1, characterized in that: The first ejector pin (41) is connected to the inner piston (2), and the second ejector pin (42) is connected to the outer piston (3).
4. The reset mechanism of the stamping die according to claim 3, characterized in that: When the upper mold component (1) moves downward relative to the lower mold component (9), the inner piston (2) and the outer piston (3) drive the first ejector pin (41) to move upward relative to the second ejector pin (42), thereby forming the material strip through the cooperation of the second forming part (52) and the first forming part (51).
5. The reset mechanism of the stamping die according to claim 3, characterized in that: When the upper mold component (1) moves upward relative to the lower mold component (9), the inner piston (2) and the outer piston (3) drive the first ejector pin (41) and the second ejector pin (42) to move downward relative to the upper mold component (1), so that the first forming part (51) and the second forming part (52) are restored to the same plane.
6. The reset mechanism of the stamping die according to claim 1, characterized in that: The inner piston (2) is sleeved inside the outer piston (3), and a first sealing ring (6) is provided between the inner piston (2) and the outer piston (3) for preventing gas leakage.
7. The reset mechanism of the stamping die according to claim 1, characterized in that: A second sealing ring (7) for preventing gas leakage is provided between the outer piston (3) and the upper mold component (1).
8. The reset mechanism of the stamping die according to claim 7, characterized in that: The outer piston (3) is provided with a sealing groove (8) for accommodating the second sealing ring (7).