A coating jig for flexible material

Abstract

This utility model relates to a coating fixture for flexible materials, comprising: a lower fixture, which is configured as a polygonal frame structure; and an upper fixture, which is configured as a polygonal frame structure adapted to the lower fixture, the upper fixture being detachably mounted on the lower fixture, the upper fixture and the lower fixture cooperating to clamp a substrate; wherein, the area of ​​the upper fixture used to press against the edge of the substrate or the area of ​​the lower fixture used to press against the edge of the substrate is provided with spaced grooves. By providing spaced grooves in the areas of the upper or lower fixture that press against the edge of the substrate, the contact area between the edge of the substrate and the fixture can be reduced, the rigid constraint area can be reduced, and the area corresponding to the groove on the edge of the substrate can be allowed to expand and contract freely during coating, releasing the stress generated during the coating process, reducing stress concentration, and thus reducing the degree of substrate warping. Furthermore, by setting upper and lower cover plates to seal the product, the cleanliness of the internal space can be ensured, and the production yield can be improved.

Description

Technical Field

[0001] This utility model belongs to the field of flexible material processing technology, specifically relating to a coating fixture for flexible materials. Background Technology

[0002] In the coating process of flexible materials (such as polyimide films, PET (Polyethylene Terephthalate) substrates, and metal foils), the clamping stability and positioning accuracy of the fixture directly affect the coating uniformity and product yield. With the increasing demands for coating precision in fields such as flexible electronics and optical thin films, the limitations of existing technologies are becoming increasingly apparent.

[0003] In the prior art, the process of processing resin substrates into resin filters usually requires the use of vacuum evaporation to coat the resin substrates. However, since the resin substrates cannot be cleaned after coating and dust needs to be prevented, their edges are rigidly constrained by the fixture during the coating process and cannot expand or contract freely. This causes stress concentration at the edges of the resin substrates, which in turn causes the resin substrates to warp and affects the normal use of the final product.

[0004] Based on the above-mentioned prior art, this utility model proposes a coating fixture for flexible materials to at least partially solve the above-mentioned problems. Utility Model Content

[0005] To address the aforementioned problems in the prior art, this utility model provides a coating fixture for flexible materials, which helps to reduce stress concentration on the flexible substrate during the coating process, thereby reducing the degree of substrate warping and preventing dust contamination.

[0006] The objective of this utility model can be achieved through the following technical solution: a coating fixture for flexible materials, comprising: a lower fixture, the lower fixture being configured as a polygonal frame structure; an upper fixture, the upper fixture being configured as a polygonal frame structure adapted to the lower fixture, the upper fixture being detachably mounted on the lower fixture, the upper fixture and the lower fixture cooperating with each other to clamp the substrate; wherein, the area of ​​the upper fixture used to press against the edge of the substrate or the area of ​​the lower fixture used to press against the edge of the substrate is provided with placement grooves at intervals.

[0007] As a preferred embodiment of this utility model, the upper fixture is provided with first positioning holes symmetrically arranged at the four corners facing the lower fixture, and a magnet is embedded in the first positioning hole; the lower fixture is provided with second positioning holes at the four corners corresponding to the first positioning holes of the upper fixture, and a positioning post is embedded in the second positioning hole.

[0008] As a preferred embodiment of this utility model, the lower fixture and the upper fixture are respectively provided with first grooves located at the same position on the left and right sides, and second grooves are respectively provided on the upper and lower sides in a staggered manner.

[0009] As a preferred technical solution of this utility model, one of the upper fixture and the lower fixture is configured as a magnetic suction element, and the other is configured as a metal part that can be attracted by the magnetic suction element.

[0010] As a preferred embodiment of this utility model, the lower fixture is one of ferrite magnets, iron-chromium-cobalt magnets, neodymium-iron-boron magnets, samarium-cobalt magnets, and alnico magnets.

[0011] As a preferred embodiment of this utility model, the upper fixture is made of iron-based alloy material.

[0012] As a preferred embodiment of this utility model, the lower surface of the lower fixture is provided with a square placement groove.

[0013] As a preferred embodiment of this utility model, the lower surface of the upper fixture is matched and installed with the upper surface of the lower fixture, forming a receiving area with the placement groove of the lower fixture for placing the coating substrate.

[0014] As a preferred embodiment of this utility model, the upper fixture and the lower fixture are each provided with a matching cover plate, wherein the cover plate is used for dust prevention.

[0015] The beneficial effects of this utility model are at least as follows:

[0016] 1. By providing grooves at intervals in the area of ​​the upper fixture used to press against the edge of the substrate or the area of ​​the lower fixture used to press against the edge of the substrate, the contact area between the edge of the substrate and the coating fixture can be reduced, that is, the area of ​​the substrate edge subjected to rigid constraint can be reduced. At the same time, the area of ​​the substrate edge corresponding to the groove can expand and contract freely during the coating process, which helps to release the stress generated on the edge of the substrate during the coating process, thereby helping to reduce the stress concentration on the edge of the substrate during the coating process, and thus helping to reduce the degree of warping of the substrate.

[0017] 2. By setting upper and lower cover plates to seal the product, it is beneficial to ensure the cleanliness of the internal space, thereby improving the production yield. Attached Figure Description

[0018] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0019] Figure 1 This is an exploded structural block diagram of the entire utility model;

[0020] Figure 2 This is the structural frame of the lower fixture of this utility model;

[0021] Figure 3 This is a structural block diagram of the upper fixture of this utility model.

[0022] In the diagram: 100, lower fixture; 101, placement groove; 102, second positioning hole; 200, upper fixture; 201, first positioning hole; 300, first groove; 400, second groove; 500, cover plate. Detailed Implementation

[0023] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0024] In existing technologies, when processing resin substrates into resin filters using vacuum evaporation, the resin substrate cannot be cleaned after coating and requires dust protection. Furthermore, its edges are rigidly constrained by the fixture and cannot expand or contract freely, leading to stress concentration at the edges. This causes warping of the resin substrate, affecting the normal use of the product. Please refer to [link to relevant documentation]. Figure 1-3 This embodiment provides a coating fixture for flexible materials, including: a lower fixture 100, which is configured as a polygonal frame structure; and an upper fixture 200, which is configured as a polygonal frame structure adapted to the lower fixture 100, and the upper fixture 200 is detachably mounted on the lower fixture 100. The upper fixture 200 and the lower fixture 100 cooperate to clamp the substrate. The area of ​​the upper fixture 200 or the area of ​​the lower fixture 100 used to press against the edge of the substrate is provided with spaced grooves 101. Specifically, by providing spaced grooves in the areas of the upper fixture 200 or the lower fixture 100 that press against the edge of the substrate, the contact area between the substrate edge and the fixture can be reduced, the rigid constraint area can be decreased, and the area corresponding to the groove on the substrate edge can freely expand and contract during coating, releasing the stress generated during the coating process, reducing stress concentration, and thus reducing the degree of substrate warping. Furthermore, by providing upper and lower cover plates 500 to seal the product, the cleanliness of the internal space can be ensured, and the production yield can be improved.

[0025] The upper fixture 200 is symmetrically provided with first positioning holes 201 at its four corners facing the lower fixture 100, and a magnet is embedded in each first positioning hole 201. The lower fixture 100 is provided with second positioning holes 102 at its four corners corresponding to the first positioning holes 201 of the upper fixture 200, and a positioning post is embedded in each second positioning hole 102. At the same time, the lower fixture 100 and the upper fixture 200 are respectively provided with first grooves 300 located at the same position on the left and right sides, and second grooves 400 staggered on the upper and lower sides. Specifically, the four-corner magnetic positioning enables the fixture to be quickly and accurately assembled. The groove layout of the left and right grooves and the upper and lower grooves staggered releases the stress of the flexible material, fundamentally solving the problems of substrate displacement, edge wrinkling and thermal deformation in the coating process, and significantly improving the coating uniformity and yield.

[0026] Furthermore, one of the upper fixture 200 and the lower fixture 100 is configured as a magnetic suction component, and the other is configured as a metal component that can be attracted by the magnetic suction component. The upper fixture 200 and the lower fixture 100 adopt a pairing design of magnetic suction component and metal component that can be attracted. When the two come close together, they are automatically attracted and fixed by magnetic field force, realizing rapid assembly. The connection can be completed within a few seconds, which greatly shortens the clamping time compared with traditional bolt connection. The uniform distribution of magnetic force enables automatic alignment, and the four corner magnets and positioning posts provide dual positioning. Disassembly is convenient and maintenance is easy. The stable magnetic connection can resist interference such as vibration. At the same time, by adapting different magnetic parameters, it can be compatible with a variety of flexible materials such as ultra-thin polyimide film and thicker PET substrate, improving the adaptability of application scenarios.

[0027] It should be noted that the lower fixture 100 is one of ferrite magnets, iron-chromium-cobalt magnets, neodymium iron-boron magnets, samarium cobalt magnets, and alnico magnets; and the upper fixture 200 is made of iron-based alloy material; at the same time, the lower surface of the lower fixture 100 is provided with a square placement groove 101; wherein, the lower surface of the upper fixture 200 matches and is installed with the upper surface of the lower fixture 100, forming a receiving area with the placement groove 101 of the lower fixture 100 for placing the coating substrate. The lower fixture 100 is made of magnetic materials such as ferrite magnets and iron-chromium-cobalt magnets. Utilizing their magnetic properties, it forms a magnetic connection with the iron-based alloy material of the upper fixture 200, ensuring quick and stable assembly of the upper and lower fixtures 100 and reducing clamping time. The square placement groove 101 on the lower surface of the lower fixture 100 matches and is installed on the lower surface of the upper fixture 200, forming a precise receiving area. This structure not only limits and fixes the coating substrate to prevent displacement during the coating process, but also cooperates with the grooves on the edges of the upper and lower fixtures 100 to provide stable support for the substrate, reduce stress concentration, improve the flatness and stability of the substrate during the coating process, and ensure coating quality.

[0028] In this embodiment, the upper fixture 200 and the lower fixture 100 are each provided with a cover plate 500 for matching, wherein the cover plate 500 is used for dust prevention; during the coating process, the cover plate 500 on one side of the coating fixture is removed to coat one side of the substrate.

[0029] This utility model discloses a coating fixture for flexible materials, comprising: a lower fixture 100, which is a polygonal frame structure; and an upper fixture 200, which is a polygonal frame structure adapted to the lower fixture 100. The upper fixture 200 is detachably mounted on the lower fixture 100 and can cooperate with the lower fixture 100 to clamp the substrate. The areas of the upper fixture 200 and the lower fixture 100 used to press against the substrate edge are provided with spaced grooves 101. By providing spaced grooves in the areas of the upper fixture 200 and the lower fixture 100 used to press against the substrate edge, the contact area between the substrate edge and the coating fixture can be reduced, i.e., the area of ​​the substrate edge subjected to rigid constraint can be reduced. Simultaneously, the area of ​​the substrate edge corresponding to the groove can freely expand and contract during the coating process, which helps to release the stress generated at the substrate edge during coating, thereby reducing stress concentration at the substrate edge during coating and thus reducing the warping of the substrate. The upper fixture 200 and the lower fixture 100 are provided with cover plates 500, forming a sealed space inside, which completely isolates the substrate from dust. During the coating process, one end of the cover plate 500 is removed to coat one side of the substrate, which greatly improves the production yield of coating.

[0030] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A coating fixture for flexible materials, characterized in that, include: The lower fixture is configured as a polygonal frame structure. The upper fixture is configured as a polygonal frame structure adapted to the lower fixture. The upper fixture is detachably mounted on the lower fixture. The upper fixture and the lower fixture cooperate with each other to clamp the substrate. The area of ​​the upper fixture used to press against the edge of the substrate or the area of ​​the lower fixture used to press against the edge of the substrate is provided with placement grooves at intervals.

2. The coating fixture for flexible materials according to claim 1, characterized in that, The upper fixture has symmetrically arranged first positioning holes at its four corners facing the lower fixture, and a magnet is embedded in each of the first positioning holes; the lower fixture has second positioning holes at its four corners corresponding to the first positioning holes of the upper fixture, and a positioning post is embedded in each of the second positioning holes.

3. The coating fixture for flexible materials according to claim 2, characterized in that, The lower fixture and the upper fixture are respectively provided with a first groove on the left and right sides at the same position, and are respectively provided with a second groove on the upper and lower sides at a staggered position.

4. The coating fixture for flexible materials according to claim 2, characterized in that, One of the upper fixture and the lower fixture is configured as a magnetic attraction element, and the other is configured as a metal part that can be attracted by the magnetic attraction element.

5. The coating fixture for flexible materials according to claim 4, characterized in that, The lower fixture is one of the following: ferrite magnet, iron-chromium-cobalt magnet, neodymium-iron-boron magnet, samarium-cobalt magnet, and alnico magnet.

6. The coating fixture for flexible materials according to claim 4, characterized in that, The upper fixture is made of iron-based alloy material.

7. The coating fixture for flexible materials according to claim 4, characterized in that, The lower surface of the lower fixture is provided with a square placement groove.

8. The coating fixture for flexible materials according to claim 1, characterized in that, The lower surface of the upper fixture is matched and installed with the upper surface of the lower fixture, forming a receiving area with the placement groove of the lower fixture for placing the coating substrate.

9. The coating fixture for flexible materials according to claim 1, characterized in that, The upper fixture and the lower fixture are each provided with a matching cover plate, wherein the cover plate is used for dust prevention.

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