Silica gel sheet punching jig
By introducing a chamfer design and a demolding component into the silicone sheet punching fixture, the problem of silicone sheets adhering to the inner wall of the die was solved, achieving an efficient and stable demolding process and improving production efficiency and product quality.
Patent Information
- Application Number
- CN202520546060.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-26
AI Technical Summary
Traditional silicone sheet punching fixtures tend to cause silicone sheets to adhere to the inner wall of the die after punching, making demolding difficult and affecting production efficiency and continuity.
A silicone sheet punching fixture was designed, which includes a chamfered silicone sheet punching die and a demolding assembly. The demolding assembly consists of a guide rod, a guide bushing, a ball bearing, and a return spring. Stable demolding of the silicone sheet is achieved through the cooperation of the guide groove and the roller groove.
It improves the demolding efficiency and quality of silicone sheets, reduces production resistance, ensures the accuracy and automation of demolding, reduces labor intensity, and improves product qualification rate.
Smart Images

Figure CN223890175U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a silicone sheet punching fixture. Background Technology
[0002] In the processing of silicone sheets, the punching process is a crucial step. Its purpose is to punch the silicone sheets into predetermined shapes and sizes to meet the requirements of subsequent use.
[0003] Traditional silicone sheet punching fixtures mainly consist of punching dies. The silicone sheet is punched by punching equipment to achieve the punching effect.
[0004] In actual use, the silicone sheet punching fixtures of the present year are prone to sticking to the inner wall of the punching die after punching, which makes demolding difficult, affects production efficiency and production continuity.
[0005] Therefore, a silicone sheet punching fixture is proposed. Utility Model Content
[0006] The purpose of this utility model is to provide a silicone sheet punching fixture to solve the problem mentioned in the background art of the difficulty in demolding traditional silicone sheet punching fixtures, which affects the continuity of production.
[0007] To solve the above technical problems, the present invention provides the following technical solution: a silicone sheet punching fixture, including a silicone sheet punching die, wherein the bottom of the silicone sheet punching die is chamfered, and a demolding component is provided on the inner wall side of the silicone sheet punching die, and the bottom end face of the demolding component is flush with the bottom of the silicone sheet punching die.
[0008] The demolding component is used to expel the silicone sheet punched inside the silicone sheet punching die from the inner wall of the silicone sheet punching die.
[0009] Preferably, the demolding assembly includes guide rods disposed on the four sides of the inner wall of the silicone sheet punching die, and guide bushings are slidably connected to the outer periphery of the guide rods. The guide bushings are connected to the demolding plate through a connecting rod on the side away from the silicone sheet punching die.
[0010] Preferably, the guide bushing has a channel in the middle, and the inner wall of the channel has a ball groove, and the ball groove is provided with rolling balls.
[0011] Preferably, the guide rod is provided with a guide groove on its outer periphery, and the guide groove and the ball cooperate with each other so that the ball rolls on the outer periphery of the guide rod through the guide groove.
[0012] Preferably, the inner wall of the silicone sheet punching die is provided with guide grooves on all four sides, and the guide grooves cooperate with the guide bushings.
[0013] Preferably, a return spring is provided on the outer periphery of the guide rod, and the return spring is located on the upper part of the guide bushing, so that the guide bushing squeezes the return spring to move elastically in the guide groove.
[0014] Preferably, the stripper template is arc-shaped, and the lower part of the stripper template is sloped.
[0015] Compared with the prior art, the beneficial effects of this utility model are:
[0016] This invention, by setting up a demolding component, can effectively extrude the punched silicone sheet from the inner wall of the punching die, avoiding the silicone sheet from adhering to the inner wall of the die, thus improving the demolding efficiency and quality, and thereby increasing the production efficiency of silicone sheets.
[0017] The chamfered design at the bottom of the punching die helps reduce resistance during the punching process, making punching smoother. It also facilitates the demolding of the silicone sheet, improving punching efficiency and quality.
[0018] The cooperation between the guide rod and the guide bushing, as well as the interaction between the ball and the guide groove, gives the demolding assembly good guidance and stability during movement, ensuring the accuracy and reliability of the demolding action, reducing the failure rate during demolding, and improving the continuity of production.
[0019] The reset spring allows the demolding assembly to automatically reset after the demolding action is completed, preparing it for the next punching and demolding, thus improving the automation level of production, reducing manual intervention, and lowering labor intensity.
[0020] The arc-shaped design of the template and the sloping surface at the bottom reduce damage to the silicone sheet, further improving the product qualification rate and reducing production costs. Attached Figure Description
[0021] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model;
[0022] Figure 2 This is a bottom view of the structure of an embodiment of the present utility model;
[0023] Figure 3 This is a schematic diagram of the silicone sheet punching die structure according to an embodiment of the present invention;
[0024] Figure 4 This is a schematic diagram of the demolding component structure according to an embodiment of the present utility model;
[0025] Figure 5 This is a schematic diagram of the guide rod structure according to an embodiment of the present utility model;
[0026] Figure 6 This is a schematic diagram of the template removal structure according to an embodiment of the present invention;
[0027] Figure 7 This is a schematic diagram of the guide bushing structure according to an embodiment of the present utility model.
[0028] In the diagram: 1. Silicone sheet punching die; 101. Guide groove; 2. Demolding assembly; 201. Guide rod; 2011. Guide roller groove; 202. Guide bushing; 2021. Channel; 2022. Bead groove; 203. Connecting rod; 204. Demolding plate; 205. Ball; 206. Return spring. Detailed Implementation
[0029] To address the problem of difficult demolding in traditional silicone sheet punching fixtures, which affects production continuity, this utility model provides a silicone sheet punching fixture. The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0030] Please see Figure 1-7 This utility model provides a silicone sheet punching fixture, including a silicone sheet punching die 1. The bottom of the silicone sheet punching die 1 is chamfered. A demolding component 2 is provided on the inner wall side of the silicone sheet punching die 1, and the bottom end face of the demolding component 2 is flush with the bottom of the silicone sheet punching die 1.
[0031] The demolding assembly 2 includes guide rods 201 disposed around the inner wall of the silicone sheet punching die 1. A guide bushing 202 is slidably connected to the outer periphery of the guide rods 201. The guide bushing 202, away from the silicone sheet punching die 1, is connected to the demolding template 204 via a connecting rod 203. A channel 2021 is formed in the center of the guide bushing 202, and a ball groove 2022 is formed on the inner wall of the channel 2021. A ball 205 is disposed inside the ball groove 2022. A guide roller groove 2011 is formed on the outer periphery of the guide rods 201, and the guide roller groove 2011 cooperates with the ball 205 to allow the ball 205 to roll around the outer periphery of the guide rods 201 through the guide roller groove 2011. Guide grooves 101 are formed around the inner wall of the silicone sheet punching die 1, and the guide grooves 101 cooperate with the guide bushing 202. A return spring 206 is provided on the outer periphery of the guide rod 201, and the return spring 206 is located on the upper part of the guide bushing 202, so that the guide bushing 202 compresses the return spring 206 and moves elastically within the guide groove 101. The ejector plate 204 is arc-shaped, and the lower part of the ejector plate 204 is inclined.
[0032] The demolding component 2 is used to expel the silicone sheet punched inside the silicone sheet punching die 1 from the inner wall of the silicone sheet punching die 1.
[0033] The working principle of the silicone sheet punching fixture provided by this utility model is as follows:
[0034] First, place the silicone sheet on the worktable of the punching equipment and align the punching die with the silicone sheet. The punching equipment punches the silicone sheet through the punching die. During the punching process, the silicone sheet squeezes the ejector plate 204, and the ejector plate 204 is subjected to force through the guide bushing 202 to squeeze the return spring 206, and the return spring 206 is compressed.
[0035] After the punching is completed, the return spring 206 elastically elongates, causing the guide bushing 202 to move downward on the guide rod 201, and through the connecting rod 203, it causes the ejector plate 204 to move towards the lower part of the punching die.
[0036] The ball bearing 205 rolls within the guide groove 2011, allowing the guide bushing 202 to move smoothly on the guide rod 201, thus ensuring the stability of the demolding assembly 2's movement.
[0037] The elastic force of the return spring 206 causes the ejector plate 204 to expel the silicone sheet from the inner wall of the punching die, while the ejector plate 204 automatically resets, preparing for the next punching and demolding.
[0038] 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 silicone sheet punching fixture, characterized in that: The device includes a silicone sheet punching die (1), the bottom of which is chamfered, and a demolding component (2) is provided on the inner wall side of the silicone sheet punching die (1), and the bottom end face of the demolding component (2) is flush with the bottom of the silicone sheet punching die (1). The demolding component (2) is used to expel the silicone sheet punched inside the silicone sheet punching die (1) from the inner wall of the silicone sheet punching die (1).
2. The silicone sheet punching fixture according to claim 1, characterized in that: The demolding assembly (2) includes a guide rod (201) disposed on the four sides of the inner wall of the silicone sheet punching die (1). A guide bushing (202) is slidably connected to the outer periphery of the guide rod (201). The guide bushing (202) is connected to the demolding template (204) through a connecting rod (203) on the side away from the silicone sheet punching die (1).
3. The silicone sheet punching fixture according to claim 2, characterized in that: The guide bushing (202) has a channel (2021) in the middle, and a ball groove (2022) is provided on the inner wall side of the channel (2021), and a ball (205) is provided inside the ball groove (2022).
4. A silicone sheet punching fixture according to claim 3, characterized in that: The guide rod (201) is provided with a guide groove (2011) on its outer periphery, and the guide groove (2011) and the ball (205) cooperate with each other so that the ball (205) rolls on the outer periphery of the guide rod (201) through the guide groove (2011).
5. A silicone sheet punching fixture according to claim 4, characterized in that: The silicone sheet punching die (1) has guide grooves (101) on all four sides of its inner wall, and the guide grooves (101) and guide bushings (202) cooperate with each other.
6. A silicone sheet punching fixture according to claim 5, characterized in that: A return spring (206) is provided on the outer periphery of the guide rod (201), and the return spring (206) is located on the upper part of the guide bushing (202) so that the guide bushing (202) squeezes the return spring (206) in the guide groove (101) to move elastically.
7. A silicone sheet punching fixture according to claim 6, characterized in that: The stripping template (204) is arc-shaped, and the lower part of the stripping template (204) is inclined.