A sealing tool for a carbon fiber article vacuum bag

Abstract

The application discloses a sealing tool for a carbon fiber product vacuum bag and belongs to the technical field of carbon fiber production, which comprises a silica gel sealing sheet, the silica gel sealing sheet comprises a covering sheet and a bearing sheet, one side of the covering sheet and the bearing sheet is fixedly connected, a vacuum valve mounting hole is formed in the inside of the covering sheet, a vacuum valve is arranged in the inside of the vacuum valve mounting hole, a connecting pipeline is arranged on the top of the vacuum valve, a plurality of sealing clamp assemblies are arranged on the outside of the silica gel sealing sheet, each sealing clamp assembly comprises two groups of clamping frames which are symmetrically arranged above and below, and a hinge part and a spring are arranged on the opposite sides of the two groups of clamping frames; when the application is used, the sealing property of the silica gel sheet when being attached can be fully utilized, meanwhile, the sealing clamp assemblies can further strengthen the sealing property of the side surface, and after production is completed, the silica gel sealing sheet and the sealing clamp assemblies can be repeatedly used, and compared with disposable vacuum bag films, high-temperature-resistant foam rubber strips and the like, the application reduces the pollution to the environment.

Description

Technical Field

[0001] This application relates to the field of carbon fiber production technology, and in particular to a sealing tool for vacuum bags of carbon fiber products. Background Technology

[0002] In the production process of carbon fiber products, autoclaves or curing ovens are required. Vacuum forming process is used in autoclaves or curing ovens. Existing vacuum processes generally use disposable high-temperature resistant vacuum bags and high-temperature foam strips, which are bonded together to form a vacuum bag. The product is then placed inside the vacuum bag and vacuumed.

[0003] Existing vacuum processes require manual bonding by workers, and the sealing effect is highly dependent on the skill level of the operators. Furthermore, if a single vacuum bag leaks, the entire bag must be scrapped and remanufactured. All materials can only be used once, resulting in high costs and potential environmental pollution. Utility Model Content

[0004] To address the shortcomings of existing technologies, this application provides a sealing fixture for vacuum bags of carbon fiber products, which overcomes the deficiencies of existing technologies. It aims to solve the problems of existing vacuum processes requiring manual bonding by workers, where the sealing effect is heavily dependent on the operator's skill level, and where a single vacuum bag needs to be scrapped and remanufactured if it leaks. Furthermore, all materials can only be used once, resulting in high costs and environmental pollution.

[0005] To achieve the above objectives, this application provides the following technical solution: a sealing fixture for vacuum bags of carbon fiber products, comprising a silicone sealing sheet, the silicone sealing sheet comprising a cover sheet and a support sheet, the cover sheet and the support sheet being fixedly connected on one side, a vacuum valve mounting hole being provided inside the cover sheet, a vacuum valve being provided inside the vacuum valve mounting hole, a connecting pipe being provided on the top of the vacuum valve, and multiple sets of sealing clamp assemblies being provided outside the silicone sealing sheet, the sealing clamp assembly comprising two sets of clamping frames arranged symmetrically above and below, each set of clamping frames having a hinge and a spring on its opposite side, the hinge being located in the middle of the clamping frame, and the end of the clamping frame away from the spring abutting against the outside of the cover sheet and the support sheet.

[0006] By adopting the above technical solution and setting a silicone sealing sheet, the cover sheet can be placed at the bottom of the carbon fiber material to be processed during use. At this time, the top of the carbon fiber material can be covered by rotating the carrier sheet. After covering, the edges of the cover sheet and the carrier sheet are aligned. Subsequently, multiple sets of sealing clamp assemblies can be set to clamp and seal the sides of the cover sheet and the carrier sheet. After sealing, the external pipeline uses a vacuum valve to evacuate the carbon fiber material between the cover sheet and the carrier sheet. The material after evacuation will enter a curing oven or autoclave for vacuum forming. After forming, the multiple sets of sealing clamp assemblies and silicone sealing sheets can be disassembled and recycled for reuse. In this way, the sealing performance of the silicone sheet itself can be fully utilized during use, and the sealing clamp assembly can further enhance the side sealing performance. After production, both the silicone sealing sheet and the sealing clamp assembly can be reused, which reduces environmental pollution compared to disposable vacuum bags, high-temperature resistant foam strips, etc.

[0007] As a preferred embodiment of this application, a sealing ring is provided inside the vacuum valve mounting hole, with both the upper and lower ends of the sealing ring penetrating the vacuum valve mounting hole, and the vacuum valve is fitted inside the sealing ring.

[0008] By adopting the above technical solution and setting a sealing ring, the internal sealing performance of the vacuum valve installed in the vacuum valve mounting hole can be improved during use, which can further reduce the occurrence of air leakage, facilitate multiple uses, and improve the stability during use.

[0009] As a preferred technical solution of this application, a smoothing layer is provided on each of the opposite sides of the cover sheet and the carrier sheet, and the smoothing layer on one side of the cover sheet has the vacuum valve mounting hole.

[0010] By adopting the above technical solution and setting a smooth treatment layer, the smooth surface of the smooth treatment layer can be used to improve the tightness of the fit during use, thereby further improving the sealing performance.

[0011] As a preferred technical solution of this application, each of the multiple sets of clamping frames is provided with a sealing plate at the end that abuts against the cover plate and the bearing plate, and the sealing plate is rectangular in shape.

[0012] By adopting the above technical solution and setting a sealing plate, the contact area between the clamping frame and the surfaces of the cover plate and the bearing plate can be increased during use, thereby increasing the sealing area and preventing air leakage.

[0013] As a preferred technical solution of this application, the surfaces of the cover sheet and the carrier sheet are divided into a contact area and a sealing area, and the sealing clamp assembly abuts against the sealing area.

[0014] By adopting the above technical solution and setting up contact and sealing areas, staff can more clearly determine the placement of carbon fiber materials during use, which is beneficial for placing the materials in the center and ensuring sufficient clamping and sealing area.

[0015] As a preferred technical solution of this application, a plug-in groove is provided on one side of the sealing plate, and a plug-in block corresponding to the plug-in groove is provided on the other side of the sealing plate.

[0016] By adopting the above technical solution and setting the insertion slot, the two sets of sealing clip assemblies that are close to each other can be brought closer together during use, preventing the problem of insufficient sealing effect caused by gaps between adjacent sets of sealing clip assemblies.

[0017] As a preferred technical solution of this application, multiple sets of sealing strips are provided on opposite sides of the two sets of sealing plates, and all sets of sealing strips are arranged horizontally.

[0018] By adopting the above technical solution and setting a sealing strip, the sealing effect can be further improved and the stability during use can be enhanced.

[0019] As a preferred technical solution of this application, the two sets of sealing strips that are opposite each other are arranged in a horizontally staggered manner.

[0020] By adopting the above technical solution and setting two sets of sealing strips in a horizontally staggered manner, the overall sealing effect of the silicone sealing sheet can be improved, effectively reducing the phenomenon of displacement and improving practicality.

[0021] The beneficial effects of this application are:

[0022] 1. By using silicone sealing sheets, the cover sheet can be placed at the bottom of the carbon fiber material to be processed. The top of the carbon fiber material can then be covered by rotating the carrier sheet. After covering, the edges of the cover sheet and carrier sheet are aligned. Subsequently, multiple sets of sealing clamps are used to clamp and seal the sides of the cover sheet and carrier sheet. After sealing, the external pipeline uses a vacuum valve to evacuate the carbon fiber material between the cover sheet and carrier sheet. The evacuated material will then enter a curing oven or autoclave for vacuum forming. After forming, the multiple sets of sealing clamps and silicone sealing sheets can be disassembled and recycled for reuse. This fully utilizes the sealing properties of the silicone sheet itself during adhesion, while the sealing clamps further enhance the side sealing. After production, both the silicone sealing sheets and sealing clamps can be reused, reducing environmental pollution compared to disposable vacuum bags, high-temperature resistant foam strips, etc.

[0023] 2. By setting a sealing ring, the internal sealing performance of the vacuum valve installed in the vacuum valve mounting hole can be improved during use, which can further reduce the occurrence of air leakage, facilitate multiple uses, and improve the stability during use. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this application;

[0025] Figure 2 This is a schematic diagram of the internal structure of the silicone sealing sheet in this application;

[0026] Figure 3 This is a schematic diagram of the sealing clip assembly structure of this application;

[0027] Figure 4 This is a schematic diagram of the cover sheet structure of this application.

[0028] In the diagram: 1. Silicone sealing sheet; 101. Cover sheet; 102. Bearing sheet; 103. Vacuum valve mounting hole; 104. Contact area; 105. Sealing area; 2. Vacuum valve; 3. Sealing clamp assembly; 301. Clamping frame; 302. Hinge; 303. Spring; 304. Sealing plate; 305. Insertion groove; 306. Insertion block; 307. Sealing strip; 4. Sealing ring; 5. Smooth treatment layer. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figure 1-4A sealing fixture for vacuum bags of carbon fiber products includes a silicone sealing sheet 1. The silicone sealing sheet 1 includes a cover sheet 101 and a support sheet 102. The cover sheet 101 and the support sheet 102 are fixedly connected on one side. A vacuum valve mounting hole 103 is provided inside the cover sheet 101. A vacuum valve 2 is provided inside the vacuum valve mounting hole 103. A connecting pipe is provided on the top of the vacuum valve 2. Multiple sets of sealing clamp assemblies 3 are provided on the outside of the silicone sealing sheet 1. The sealing clamp assembly 3 includes two sets of clamping frames 301 arranged symmetrically on top and bottom. A hinge 302 and a spring 303 are provided on the opposite side of the two sets of clamping frames 301. The hinge 302 is located in the middle of the clamping frame 301. The end of the clamping frame 301 away from the spring 303 abuts against the outside of the cover sheet 101 and the support sheet 102. A smooth treatment layer 5 is provided on the opposite side between the cover sheet 101 and the support sheet 102. A vacuum valve mounting hole 103 is provided on the smooth treatment layer 5 on one side of the cover sheet 101.

[0031] By setting the silicone sealing sheet 1, during use, the cover sheet 101 can be placed at the bottom of the carbon fiber material to be processed. At this time, the top of the carbon fiber material can be covered by rotating the support sheet 102. After covering, align the edges of the cover sheet 101 and the support sheet 102. Subsequently, the sides of the cover sheet 101 and the support sheet 102 can be clamped and sealed by the multiple sets of sealing clamp assemblies 3. After sealing, the external pipeline uses the vacuum valve 2 to evacuate the carbon fiber material between the cover sheet 101 and the support sheet 102. After evacuation, the material will enter the curing oven or autoclave for further processing. After molding, multiple sets of sealing clip assemblies 3 and silicone sealing sheets 1 can be disassembled and recycled for reuse. This allows full utilization of the sealing properties of the silicone sheet itself during bonding, while the sealing clip assembly 3 further enhances the side sealing. After production, both the silicone sealing sheet 1 and the sealing clip assembly 3 can be reused, reducing environmental pollution compared to disposable vacuum bags, high-temperature resistant foam strips, etc. By setting a smooth treatment layer 5, the smooth surface of the smooth treatment layer 5 can be used to improve the tightness of bonding during use, further enhancing the sealing performance.

[0032] Reference Figure 1-4A sealing ring 4 is provided inside the vacuum valve mounting hole 103. Both ends of the sealing ring 4 penetrate the vacuum valve mounting hole 103, and the vacuum valve 2 is fitted inside the sealing ring 4. Each end of the multiple clamping frames 301 that abuts against the cover plate 101 and the bearing plate 102 is provided with a sealing plate 304, which is rectangular in shape. One side of the sealing plate 304 has an insertion groove 305, and the other side has an insertion block 306 corresponding to the insertion groove 305. By providing the sealing ring 4, the vacuum valve 2 can be lifted during use. The internal sealing of the vacuum valve mounting hole 103 further reduces air leakage, which is beneficial for repeated use and improves stability during use. By setting the sealing plate 304, the contact area between the clamping frame 301 and the surfaces of the cover plate 101 and the carrier plate 102 can be increased during use, thereby increasing the sealing area and preventing air leakage. By setting the insertion groove 305, the two sets of sealing clamp assemblies 3 that are close to each other can be brought closer together during use, preventing the problem of insufficient sealing effect caused by gaps between adjacent sets of sealing clamp assemblies 3.

[0033] Reference Figure 1-4 The surfaces of the cover plate 101 and the carrier plate 102 are divided into a contact area 104 and a sealing area 105, and the sealing clamp assembly 3 abuts against the sealing area 105. By setting the contact area 104 and the sealing area 105, the staff can more clearly see the placement position of the carbon fiber material during use, which is conducive to placing the material in the middle and ensuring sufficient clamping and sealing area. Multiple sealing strips 307 are set on one side of each of the two sets of sealing plates 304, and the multiple sealing strips 307 are all horizontally arranged. By setting the sealing strips 307, the sealing effect can be further improved during use, and the stability during use can be improved. The two sets of sealing strips 307 are horizontally staggered. By setting the two sets of sealing strips 307 horizontally staggered, the overall sealing effect of the silicone sealing sheet 1 can be improved, effectively reducing the phenomenon of displacement and improving practicality.

[0034] Working principle: By setting the silicone sealing sheet 1, during use, the cover sheet 101 can be placed at the bottom of the carbon fiber material to be processed. At this time, the top of the carbon fiber material can be covered by rotating the support sheet 102. After covering, align the edges of the cover sheet 101 and the support sheet 102. Subsequently, multiple sets of sealing clamp assemblies 3 can be used to clamp and seal the sides of the cover sheet 101 and the support sheet 102. After sealing, the external pipeline uses the vacuum valve 2 to evacuate the carbon fiber material between the cover sheet 101 and the support sheet 102. After evacuation, the material will enter a curing oven or autoclave for vacuum forming. After completion, multiple sets of sealing clip assemblies 3 and silicone sealing sheets 1 can be disassembled and recycled for reuse. This allows full use of the sealing properties of the silicone sheet itself when it is attached, while the sealing clip assembly 3 can further enhance the sealing of the sides. After production, both the silicone sealing sheet 1 and the sealing clip assembly 3 can be reused, which reduces environmental pollution compared to disposable vacuum bags, high-temperature resistant foam strips, etc. By setting the sealing ring 4, the internal sealing of the vacuum valve 2 installed in the vacuum valve mounting hole 103 can be improved during use, further reducing the occurrence of air leakage, which is conducive to multiple uses and improves the stability during use.

[0035] Among them, by setting a smooth treatment layer 5, the smooth surface of the smooth treatment layer 5 can be used to improve the tightness of the fit during use, and further improve the sealing performance. By setting a sealing plate 304, the contact area between the clamping frame 301 and the surface of the cover plate 101 and the bearing plate 102 can be increased during use, thereby increasing the sealing area and preventing air leakage.

[0036] Meanwhile, by setting up the contact area 104 and the sealing area 105, the staff can more clearly see the placement position of the carbon fiber material during use, which is conducive to placing the material in the middle and ensuring that there is a sufficient clamping and sealing area.

[0037] In addition, by setting the insertion slot 305, the two sets of sealing clip assemblies 3 that are close to each other can be brought closer together during use, preventing gaps between adjacent sets of sealing clip assemblies 3 that would result in insufficient sealing effect; by setting the sealing strip 307, the sealing effect can be further improved during use, and the stability during use can be enhanced; by setting the two sets of sealing strips 307 to be arranged laterally and staggered, the overall sealing effect of the silicone sealing sheet 1 can be improved, effectively reducing the phenomenon of displacement and improving practicality.

[0038] The above are merely preferred embodiments of this application and are not intended to limit this application. Although this application 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 this application should be included within the protection scope of this application.

Claims

1. A sealing fixture for vacuum bags of carbon fiber products, comprising a silicone sealing sheet (1), characterized in that, The silicone sealing sheet (1) includes a cover sheet (101) and a support sheet (102). The cover sheet (101) and the support sheet (102) are fixedly connected on one side. A vacuum valve mounting hole (103) is provided inside the cover sheet (101). A vacuum valve (2) is provided inside the vacuum valve mounting hole (103). A connecting pipe is provided on the top of the vacuum valve (2). Multiple sets of sealing clamp assemblies (3) are provided on the outside of the silicone sealing sheet (1). The sealing clamp assembly (3) includes two sets of clamping frames (301) arranged symmetrically on the top and bottom. A hinge (302) and a spring (303) are provided on the opposite side of the two sets of clamping frames (301). The hinge (302) is located in the middle of the clamping frame (301). The end of the clamping frame (301) away from the spring (303) abuts against the outside of the cover sheet (101) and the support sheet (102).

2. The sealing fixture for vacuum bags of carbon fiber products according to claim 1, characterized in that, A sealing ring (4) is provided inside the vacuum valve mounting hole (103). Both the upper and lower ends of the sealing ring (4) penetrate the vacuum valve mounting hole (103), and the vacuum valve (2) is fitted inside the sealing ring (4).

3. The sealing fixture for vacuum bags of carbon fiber products according to claim 1, characterized in that, A smoothing layer (5) is provided on each side of the cover plate (101) and the support plate (102), and the smoothing layer (5) on the side of the cover plate (101) has the vacuum valve mounting hole (103).

4. A sealing fixture for vacuum bags of carbon fiber products according to claim 1, characterized in that, Each of the multiple sets of clamping frames (301) is provided with a sealing plate (304) at one end that abuts against the cover plate (101) and the bearing plate (102), and the sealing plate (304) is rectangular in shape.

5. A sealing fixture for vacuum bags of carbon fiber products according to claim 1, characterized in that, The surfaces of the cover sheet (101) and the carrier sheet (102) are divided into a contact area (104) and a sealing area (105), and the sealing clamp assembly (3) abuts against the sealing area (105).

6. A sealing fixture for vacuum bags of carbon fiber products according to claim 4, characterized in that, The sealing plate (304) has a plug groove (305) on one side and a plug block (306) corresponding to the plug groove (305) on the other side.

7. A sealing fixture for vacuum bags of carbon fiber products according to claim 4, characterized in that, Multiple sets of sealing strips (307) are provided on opposite sides of the two sets of sealing plates (304), and the multiple sets of sealing strips (307) are arranged horizontally.

8. A sealing fixture for vacuum bags of carbon fiber products according to claim 7, characterized in that, The two sets of sealing strips (307) that are opposite each other are arranged in a horizontally staggered manner.

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