Flexible circuit board cover film pressure maintaining jig

Abstract

The utility model discloses a kind of flexible circuit board cover film pressure maintaining jigs, including top plate, bottom plate and multiple setting between top plate and bottom plate pressing plate, multiple pressing plate is set up, and it is respectively flat plate structure, at least two rotating connectors are provided on bottom plate, and top plate and multiple pressing plate are respectively through rotating connector and can be reversed assembly in bottom plate, and pressure maintaining cavity for pressure maintaining the cover film of flexible circuit board is formed between every two adjacent pressing plate, so multiple flexible circuit boards can be simultaneously pressure maintained, and the adhesion effect of its cover film is guaranteed, production efficiency and equipment utilization are also effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of flexible circuit board production equipment technology, and in particular to a pressure-holding fixture for a flexible circuit board cover film. Background Technology

[0002] Flexible printed circuit boards (FPCs) require a pressure-holding process after the cover film is attached to the board to ensure good adhesion.

[0003] Currently, the pressure holding operation of the cover film is generally equipped with a single pressure holding mold cavity. Therefore, only a single flexible circuit board can be pressure held at one time, and each operation requires a pre-pressure of 20 seconds followed by a pressure holding of 100 seconds. This results in low production efficiency and low equipment utilization. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a pressure-holding fixture for flexible circuit board cover films, which can simultaneously hold multiple flexible circuit boards under pressure and ensure the adhesion of their cover films, while also effectively improving production efficiency and equipment utilization.

[0005] To achieve the above objectives, the technical solution provided by this utility model is as follows:

[0006] This utility model provides a pressure-holding fixture for a flexible circuit board cover film, including a top plate, a bottom plate, and multiple pressure plates disposed between the top plate and the bottom plate; the multiple pressure plates are arranged in an upper and lower position and are all flat plate structures; the bottom plate is provided with at least two rotating connectors, and the top plate and the multiple pressure plates are respectively rotatably assembled to the bottom plate through the rotating connectors, and a pressure-holding cavity for holding the cover film of the flexible circuit board is formed between every two adjacent pressure plates.

[0007] Furthermore, the rotating connector is an elastic metal hinge, and one end of the top plate, the bottom plate and the pressure plate is respectively provided with a pivot hole that cooperates with the rotating connector. The rotating connector passes through the pivot hole of the top plate, the bottom plate and the pressure plate, so that the top plate and the multiple pressure plates are respectively flipped relative to the bottom plate.

[0008] Furthermore, the metal hinge is formed by a long strip of metal sheet, with gaps between its two ends, and the gaps between its two ends are closed by the elasticity of the metal hinge itself.

[0009] Furthermore, the metal hinge is a stainless steel hinge.

[0010] Furthermore, the top and / or bottom surfaces of the pressure plate are provided with an elastic colloid.

[0011] Furthermore, the elastic colloid is a silicone gel.

[0012] Furthermore, the pressure plate is an aluminum plate with a thickness of 1.00 mm; the elastic colloid is respectively disposed on the top and bottom surfaces of the pressure plate, and the thickness of each layer of elastic colloid is 0.25 mm.

[0013] Furthermore, the top plate and the bottom plate are both aluminum alloy plates, and their thickness is 5.00 mm.

[0014] The technical solution provided by this utility model has the following beneficial effects:

[0015] By forming a pressure-holding cavity between every two adjacent pressure plates to hold the cover film of the flexible circuit board, and each pressure-holding cavity corresponding to one flexible circuit board, at least two flexible circuit boards can be held under pressure at the same time, ensuring the adhesion of their cover film, and effectively improving production efficiency and equipment utilization. Attached Figure Description

[0016] Figure 1 The diagram shown is a schematic of the pressure-holding fixture for the flexible circuit board cover film in the pressure-holding state in the embodiment.

[0017] Figure 2 The figure shown is a cross-sectional view of the pressure-holding fixture for the flexible circuit board cover film in the embodiment when it is in the pressure-holding state;

[0018] Figure 3 The diagram shows a schematic of the pressure-holding fixture for the flexible circuit board cover film in the open state in the embodiment. Detailed Implementation

[0019] To further illustrate the various embodiments, the present invention provides accompanying drawings. These drawings are part of the disclosure of the present invention and are mainly used to illustrate the embodiments, and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these drawings, those skilled in the art should be able to understand other possible implementations and the advantages of the present invention. The components in the drawings are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0020] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0021] Reference Figures 1 to 3 This embodiment provides a pressure-holding fixture for flexible circuit board cover film (hereinafter referred to as pressure-holding fixture) for pressure-holding operation after the cover film of flexible circuit board is attached, thereby ensuring that the cover film has a good adhesion effect.

[0022] like Figure 1 and Figure 2As shown, the pressure-holding fixture in this embodiment includes a top plate 1, a bottom plate 3, and three pressure plates 2 disposed between the top plate 1 and the bottom plate 3. All pressure plates 2 are arranged in an upper and lower sequence, and all pressure plates 2 are flat plate structures to ensure that the product to be pressure-held is subjected to uniform force between the pressure plates 2, thereby ensuring a good pressure-holding effect.

[0023] Three rotating connectors 4 are provided on the left end of the base plate 3. The top plate 1 and all the pressure plates 2 are rotatably assembled to the base plate 3 through the rotating connectors 4. Each pair of adjacent pressure plates 2 together form a pressure-holding cavity 5 for holding the cover film of the flexible circuit board, so that one flexible circuit board and two TPX films (i.e., transparent and heat-resistant polyolefin polymer films) that match the flexible circuit board can be placed in each pressure-holding cavity 5, thereby facilitating the next pressure-holding operation.

[0024] In this embodiment, the rotating connector 4 is an elastic metal hinge. The left ends of the top plate 1, bottom plate 3, and pressure plate 2 are each provided with three pivot holes 6 that engage with the rotating connector 4. The three rotating connectors 4 pass through the pivot holes 6 of the top plate 1, bottom plate 3, and pressure plate 2, respectively, so that the top plate 1 and the three pressure plates 2 respectively form a shape relative to the bottom plate 3 as shown in the figure. Figure 3 The flip-out settings are shown.

[0025] More specifically, the rotating connector 4 is a stainless steel hinge, and each pressure plate 2 has an elastic colloid on its top and bottom surfaces, and the elastic colloid is a silicone body.

[0026] The three pressure plates 2 include a first pressure plate, a second pressure plate, and a third pressure plate arranged sequentially from top to bottom. The first pressure plate is close to the top plate 1, the third pressure plate is close to the bottom plate 3, and the second pressure plate is located between the first and third pressure plates. Of course, in other embodiments, the top surface of the first pressure plate and the bottom surface of the third pressure plate may not be provided with elastic colloid.

[0027] like Figure 3 As shown, during the pressure holding operation, firstly, the top plate 1, the first pressure plate, and the second pressure plate are flipped upwards in sequence. Then, a flexible circuit board and two TPX films located on the upper and lower surfaces of the flexible circuit board are placed on the third pressure plate. Next, the second pressure plate is flipped downwards to press down on the third pressure plate. This process is repeated until the top plate 1 is flipped downwards and presses down on the first pressure plate. Finally, the pressure holding operation is performed as shown in the diagram. Figure 1 The pressure-holding fixture, which holds the products to be pressure-held, is moved to the pressure-holding machine for pressure holding. At this time, the pressure-holding fixture can simultaneously perform pressure holding operations on the cover films of two flexible circuit boards. Therefore, compared with the traditional method of pressure holding one product per batch, the pressure-holding fixture in this embodiment can significantly improve production efficiency and equipment utilization. In addition, during operation, it is only necessary to change the TPX film and pick up and put down the flexible circuit board products, similar to the book-style operation of each board movement, which is also more convenient.

[0028] By forming a pressure-holding cavity 5 between every two adjacent pressure plates 2 to hold the cover film of the flexible circuit board, and each pressure-holding cavity 5 corresponding to one flexible circuit board, at least two flexible circuit boards can be held under pressure at the same time, and the adhesion effect of their cover film can be guaranteed. This also effectively improves production efficiency and equipment utilization.

[0029] Of course, in other embodiments, the number of pressure plates 2 can also be 4 or 5 or more, to increase the number of flexible circuit boards that are pressed at the same time, such as pressing 3 or 4 or more flexible circuit boards at the same time, thereby further improving production efficiency.

[0030] Furthermore, the number of rotating connectors 4 is not limited to this; there can be two, four, or five or more. Moreover, the rotating connectors 4 can also adopt a hinge connection structure or other hinge structure.

[0031] In another preferred embodiment, such as Figure 1 As shown, each metal hinge is formed by a long strip of metal sheet, with gaps between its first and last ends. The gaps between its first and last ends are closed by the elastic force of the rotating connector 4 to prevent the top plate 1, bottom plate 3 and pressure plate 2 from accidentally coming off.

[0032] In this specific embodiment, the top plate 1 and the bottom plate 3 are both aluminum alloy plates, and their thickness is 5.00mm.

[0033] The pressure plate 2 is an aluminum plate with a thickness of 1.00 mm. Each layer of elastic colloid has a thickness of 0.25 mm. Therefore, one pressure plate 2 and two layers of elastic colloid together constitute one aluminum-silicon plate with a total thickness of 1.50 mm. During the pressure holding operation, the elastic colloid can effectively buffer the operation and evenly distribute the pressure to further improve the pressure holding effect.

[0034] Furthermore, the top plate 1 and the bottom plate 3 have the same external dimensions, and the external dimensions of the aluminum silicon plate are smaller than those of the top plate 1 and the bottom plate 3, respectively, to ensure that the pressure is smoothly transmitted to each aluminum silicon plate.

[0035] When switching between flexible circuit boards of different sizes, first open the gaps at the beginning and end of the metal sheet to allow the top plate 1 and pressure plate 2 to be removed from the gaps. Then, the pressure plate 2, which matches the size of the next batch of flexible circuit boards that need to be pressure-held, is reassembled together with the original top plate 1 onto the rotating connector 4 for reuse. The switching can be achieved simply by replacing the aluminum silicon plate, and it also has the advantages of simple structure and easy operation.

[0036] Of course, in other embodiments, the thickness of the top plate 1, the bottom plate 3, the pressure plate 2 and the elastic colloid is not limited to this, and will not be described in detail here.

[0037] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail may be made to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims, and all such changes shall be within the scope of protection of the present invention.

Claims

1. A pressure-holding fixture for a flexible circuit board cover film, characterized in that: Includes a top plate, a bottom plate, and multiple pressure plates disposed between the top plate and the bottom plate; Multiple pressure plates are arranged on top and bottom, and each is a flat plate structure; the bottom plate is provided with at least two rotating connectors, and the top plate and multiple pressure plates are respectively rotatably assembled to the bottom plate through the rotating connectors, and a pressure-holding cavity for the cover film of the pressure-holding flexible circuit board is formed between every two adjacent pressure plates.

2. The pressure-holding fixture for flexible circuit board cover film according to claim 1, characterized in that: The rotating connector is an elastic metal hinge. One end of the top plate, the bottom plate, and the pressure plate is respectively provided with a pivot hole that matches the rotating connector. The rotating connector passes through the pivot hole of the top plate, the bottom plate, and the pressure plate, so that the top plate and the multiple pressure plates are respectively flipped relative to the bottom plate.

3. The pressure-holding fixture for flexible circuit board cover film according to claim 2, characterized in that: The metal hinge is formed by a long strip of metal sheet, with gaps at its two ends, and the gaps between the two ends are closed by the elasticity of the metal hinge itself.

4. The pressure-holding fixture for flexible circuit board cover film according to claim 2, characterized in that: The metal hinge is a stainless steel hinge.

5. The pressure-holding fixture for flexible circuit board cover film according to any one of claims 1-4, characterized in that: The top and / or bottom surfaces of the pressure plate are provided with elastic colloid.

6. The pressure-holding fixture for flexible circuit board cover film according to claim 5, characterized in that: The elastic colloid is a silicone gel.

7. The pressure-holding fixture for flexible circuit board cover film according to claim 6, characterized in that: The pressure plate is an aluminum plate with a thickness of 1.00 mm; the elastic colloid is respectively disposed on the top and bottom surfaces of the pressure plate, and the thickness of each layer of elastic colloid is 0.25 mm.

8. The pressure-holding fixture for flexible circuit board cover film according to any one of claims 1-4, characterized in that: The top plate and the bottom plate are both aluminum alloy plates, and their thickness is 5.00 mm.

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