PET auxiliary pasting device for FPC

By designing an FPC-PET auxiliary bonding device and employing electrostatic adsorption and positioning groove technology, the problems of high cost of automated equipment and inaccuracy of manual operation in the FPC-PET bonding process were solved, achieving a low-cost and high-precision bonding effect.

CN224054504UActive Publication Date: 2026-03-27JIANGSU YUANGAN AUTOMOBILE ELECTRONICS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-16
Publication Date
2026-03-27

AI Technical Summary

Technical Problem

In existing technologies, the bonding process between FPC and PET suffers from high costs and insufficient flexibility of automated equipment, while manual operation is prone to positioning deviations and unevenness, making it difficult to meet the precision requirements of thin, lightweight, and highly integrated electronic products.

Method used

A PET-assisted bonding device for FPC was designed, including a housing, guide columns, a first lifting plate, a second lifting plate, a return spring, and a support block. The device achieves precise bonding of FPC and PET through electrostatic adsorption and positioning grooves, and improves the stability of the device by using the return spring and anti-slip layer.

Benefits of technology

It achieves low-cost, easy-to-operate, and high-precision bonding of FPC and PET, improves bonding accuracy and device stability, and reduces production costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of FPC pasting devices, and provides a PET auxiliary pasting device for an FPC, the PET auxiliary pasting device for the FPC comprises a machine box, guide columns, a first lifting plate, a second lifting plate, reset springs and supporting blocks, the machine box is provided with a containing cavity, the guide columns are vertically arranged in the containing cavity, and the multiple guide columns are arranged in parallel; the first lifting plate is arranged on the guide columns in a lifting mode and located in the containing cavity. A plurality of placement grooves are formed in the first lifting plate at intervals, and the placement grooves are used for stacking FPC boards; the supporting blocks are arranged in the containing grooves correspondingly, the lower ends of the guide columns are sleeved with the reset springs correspondingly, and the two ends of the reset springs are connected with the bottom of the first lifting plate and the machine box correspondingly. The second lifting plate is movably arranged on the guide columns, and the PET film is automatically adsorbed to the side, facing the first lifting plate, of the second lifting plate. The flexible printed circuit board has the effect of conveniently pasting the FPC and the PET.
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Description

TECHNICAL FIELD

[0001] The application relates to the technical field of FPC sticking devices, in particular to a PET auxiliary sticking device for FPC. BACKGROUND

[0002] FPC (Flexible Printed Circuit), also known as flexible circuit board, flexible printed circuit board, flexible wiring board, etc., is a kind of highly reliable and excellent flexible printed circuit board made of polyimide or polyester film, also known as soft board or FPC, which has the characteristics of high wiring density, light weight and thin thickness.

[0003] In the field of electronic manufacturing, the sticking process of PET film and rectangular block-shaped FPC is a key link in the production process, and its precision and efficiency directly affect the performance and yield of the product. In the production process of PET film, special silicone is usually coated on the surface. This surface treatment makes the PET film have better adsorption capacity and protection effect, can firmly adsorb the FPC, and prevent it from falling off or moving.

[0004] At present, the industry generally uses automatic equipment or manual operation to complete the sticking. Although the automatic equipment has high efficiency, it is expensive and lacks flexibility. Manual operation depends on the proficiency of the operator, and is prone to positioning deviation and uneven sticking. With the development of electronic products towards lightness, thinness and high integration, the requirement for sticking precision is getting higher and higher, and there is an urgent need for a low-cost, simple-to-operate and high-precision sticking device. CONTENT OF THE INVENTION

[0005] In order to facilitate the sticking of FPC and PET and reduce production cost, the application provides a PET auxiliary sticking device for FPC.

[0006] The PET auxiliary sticking device for FPC provided by the application adopts the following technical scheme:

[0007] A PET auxiliary sticking device for FPC, comprising a machine box, guide columns, first lifting plates, second lifting plates, return springs and supporting blocks, the machine box is provided with a containing cavity, the guide columns are vertically arranged in the containing cavity, and a plurality of guide columns are arranged in parallel;

[0008] The first lifting plates are arranged on the guide columns and located in the containing cavity; a plurality of placing grooves are arranged on the first lifting plates at intervals, and the placing grooves are used for stacking FPC boards; the supporting blocks are arranged in the placing grooves, and the supporting blocks are connected with the machine box; the return springs are sleeved on the lower ends of the guide columns, and the two ends of the return springs are connected with the bottom of the first lifting plate and the machine box, respectively;

[0009] The second lifting plate is movably arranged on each guide column, and the PET film is adsorbed on the side of the second lifting plate facing the first lifting plate.

[0010] By adopting the above technical scheme, during production, the staff first places the FPC plates in the placing grooves, and the FPC plates can be kept in a stacked state under the limiting action of the supporting blocks and the placing grooves.

[0011] Then the staff threads the second lifting plate on each guide column, and adheres the PET film to the side of the second lifting plate facing the first lifting plate, and the PET film is adsorbed on the second lifting plate by electrostatic adsorption. Then the staff applies downward pressure, and the second lifting plate moves in the direction of the first lifting plate, so that the PET film can be in contact with the uppermost FPC in each placing groove, thereby completing adsorption and adhesion.

[0012] After the adhesion is completed, the staff removes the PET film from the second lifting plate and replaces a new PET film for adhesion, and the operation is repeated in this way.

[0013] As the adhesion work progresses, the height of the stacked FPC plates as a whole gradually decreases. Since the bottom of the first lifting plate is connected to a return spring, when subjected to downward pressure, the spring will be compressed, causing the first lifting plate to move downward relative to the guide column. Since the supporting block is connected to the machine box, the supporting block will not move, thereby facilitating adhesion of the FPC plates and the PET.

[0014] Preferably, the second lifting plate is made of transparent material.

[0015] By adopting the above technical scheme, the second lifting plate made of transparent material can facilitate the staff to observe the side of the second lifting plate facing the first lifting plate, thereby better adsorbing the PET film on the second lifting plate.

[0016] Preferably, the side of the second lifting plate facing the first lifting plate is provided with a positioning groove for positioning the PET film.

[0017] By adopting the above technical scheme, the positioning groove is used to position the PET film, so that the staff can place the PET film at the same position each time.

[0018] Preferably, the side of the second lifting plate away from the first lifting plate is provided with two handles.

[0019] By adopting the above technical scheme, the handles are used for the user to hold, thereby facilitating better application of external force to the second lifting plate.

[0020] Preferably, the machine box comprises a top plate, a connecting shell and a bottom plate, the connecting shell is used for connecting the top plate and the bottom plate, the top plate is located above the bottom plate, and the top plate, the connecting shell and the bottom plate form the containing cavity.

[0021] Preferably, the top plate is detachably connected to the connecting shell in a plug-in manner.

[0022] By adopting the technical scheme, the top plate is detachably connected to the connecting shell, and the top plate is convenient to separate.

[0023] Preferably, the bottom plate is provided with an anti-skid layer on the side away from the connecting shell.

[0024] By adopting the technical scheme, the anti-skid layer can increase the static friction force between the bottom plate and the workbench surface, thereby improving the stability of the position of the machine box.

[0025] Preferably, the two ends of the reset spring are detachably connected to the first lifting plate and the bottom plate in a hooking manner.

[0026] By adopting the technical scheme, the detachability of the spring is realized in a hooking manner, and the reset spring is convenient to install. When installing, the reset spring is sleeved on the guide column, and the lower end of the reset spring is hooked on the reserved hole of the bottom plate. Then the first lifting plate is installed, the first lifting plate is sleeved on each guide column, and finally the upper end of the reset spring is hooked on the reserved hole of the first lifting plate.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] (1) By setting the machine box, the guide column, the first lifting plate, the second lifting plate, the reset spring and the supporting block, during production, the worker first places the FPC plate in each placing groove; then the worker threads the second lifting plate on each guide column, and simultaneously adheres the PET film to the side of the second lifting plate facing the first lifting plate; then the worker exerts a downward pressure, and the second lifting plate moves in the direction of approaching the first lifting plate, so that the PET film can be in contact with the uppermost FPC in each placing groove, thereby completing the adsorption and adhesion.

[0029] (2) By setting the positioning groove on the second lifting plate, the positioning groove is used for positioning the PET film, so that the worker can accurately place the PET film at the same position each time.

[0030] (3) By setting the anti-skid layer, the anti-skid layer can increase the static friction force between the bottom plate and the workbench surface, thereby improving the stability of the position of the machine box. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1is a structural schematic diagram of an auxiliary pasting device in an embodiment of the present application;

[0032] Figure 2 is a structural schematic diagram of an auxiliary pasting device omitting a second lifting plate in an embodiment of the present application;

[0033] Figure 3 is a partial structural schematic diagram of an auxiliary pasting device in an embodiment of the present application;

[0034] Figure 4 is a structural schematic diagram of a first lifting plate in an embodiment of the present application.

[0035] The reference signs: 1, machine box; 11, top plate; 12, connecting shell; 13, bottom plate; 2, guide column; 3, first lifting plate; 4, second lifting plate; 5, reset spring; 6, supporting block; 7, accommodating cavity; 8, placing groove; 9, handle. DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. The present application can be embodied in various different forms, and is not limited to the embodiments described here.

[0037] In the description of the present application, the expressions of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" mean that the specific features, structures, materials or characteristics expressed in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials or characteristics expressed can be combined in any one or more embodiments or examples in a suitable manner.

[0038] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit the present application; the terms "include" and "have" and any variations thereof in the specification and claims of the present application and the above description of drawings are intended to cover non-exclusive inclusion.

[0039] In the description of the embodiments of the present application, unless otherwise explicitly specified and limited, the technical terms "mount", "connect", "connect", "fix" and other terms should be understood in a broad sense, for example, it can be fixedly connected; it can also be detachably connected; or it can be integrated; or it can be mechanically connected. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0040] Some embodiments of the present application will be described in detail with reference to the drawings. Those skilled in the art can combine and combine the different embodiments or examples expressed in the present application and the features of the different embodiments or examples without conflict.

[0041] The embodiment of the present application discloses a PET auxiliary pasting device for FPC. Referring to Figures 1 to 3 , the auxiliary pasting device comprises a machine box 1, guide columns 2, a first lifting plate 3, a second lifting plate 4, a reset spring 5 and a supporting block 6. The machine box 1 comprises a top plate 11, a connecting shell 12 and a bottom plate 13, the top plate 11 is located above the bottom plate 13, the connecting shell 12 is used for connecting the top plate 11 and the bottom plate 13, and a containing cavity 7 is formed between the top plate 11, the connecting shell 12 and the bottom plate 13. The containing cavity 7 is rectangular, the guide columns 2 are vertically fixed on the bottom plate 13 and are parallel to each other. In the embodiment, the number of guide columns 2 is four, and each guide column 2 is located in the containing cavity 7.

[0042] Among them, the top plate 11 is detachably connected to the connecting shell 12 in a plug-in manner, that is, a plurality of plug-in columns are fixedly connected to one side of the top plate 11 facing the connecting shell 12, and a plurality of plug-in holes are formed in the connecting shell 12. Each plug-in column is inserted into the plug-in hole. The side of the bottom plate 13 away from the connecting shell 12 is provided with an anti-skid layer (not shown in the figure), which can be made of rubber or nano organic silicon material. The anti-skid layer can increase the static friction between the bottom plate 13 and the workbench, thereby improving the stability of the position of the machine box 1 when it is placed naturally.

[0043] In combination Figure 4 , the first lifting plate 3 is sleeved on the four guide columns 2, and the cross section of the first lifting plate 3 is smaller than the cross section of the containing cavity 7, so that the first lifting plate 3 can be in the containing cavity 7. A plurality of placing grooves 8 are spaced apart on the first lifting plate 3, the placing grooves 8 are rectangular, and each placing groove 8 is distributed along the length direction and the width direction of the first lifting plate 3. Each placing groove 8 is provided with a supporting block 6, and the supporting block 6 is used for supporting the FPC plate and is fixedly connected to the bottom plate 13.

[0044] The lower end of each guide column 2 is sleeved with a reset spring 5, and the two ends of the reset spring 5 are connected with the bottom of the first lifting plate 3 and the machine box 1 respectively. In the embodiment, the two ends of the reset spring 5 are detachably connected to the first lifting plate 3 and the bottom plate 13 in a hooking manner. During installation, the reset spring 5 is sleeved on the guide column 2, and the lower end of the reset spring 5 is hooked on the reserved hole of the bottom plate 13. Then the first lifting plate 3 is installed, the first lifting plate 3 is sleeved on each guide column 2, and finally the upper end of the reset spring 5 is hooked on the reserved hole of the first lifting plate 3, so that the reset spring 5 can be conveniently disassembled.

[0045] The second lifting plate 4 is movably sleeved on the guide column 2, the second lifting plate 4 is located above the first lifting plate 3, and the area size and the first lifting plate 3 are the same, so that the second lifting plate 4 is in the interval range of the containing cavity 7. The PET film is self-adsorbed on the side of the second lifting plate 4 facing the first lifting plate 3 by static electricity, in the embodiment, the second lifting plate 4 is made of transparent material, such as acrylic plate. The second lifting plate 4 made of transparent material can facilitate the staff to observe the side of the second lifting plate 4 facing the first lifting plate 3, so as to better adsorb the PET film on the second lifting plate 4.

[0046] The side of the second lifting plate 4 facing the first lifting plate 3 is provided with a positioning groove, and the positioning groove is used for positioning the PET film. The positioning groove is used for positioning the PET film, so that the staff can place the PET film at the same position each time, and the position of the FPC plate pasted on the PET film is also relatively constant. In addition, the side of the second lifting plate 4 away from the first lifting plate 3 is fixedly connected with two handles 9, and the two handles 9 are symmetrically arranged. The handle 9 is used for holding by the user, and the second lifting plate 4 is conveniently subjected to external force.

[0047] The implementation principle of the FPC PET auxiliary pasting device in the embodiment of the application is as follows: in the production process, the staff first places the FPC plate in each placing groove 8. In this state, the FPC plate is limited by the supporting block 6 and the placing groove 8, and can maintain the stacked state.

[0048] Then, the staff puts the second lifting plate 4 on each guide column 2, and pastes the PET film on the side of the second lifting plate 4 facing the first lifting plate 3. The PET film is adsorbed on the surface of the second lifting plate 4 by static electricity. Then, the staff applies downward pressure to promote the second lifting plate 4 to move towards the first lifting plate 3, so that the PET film is in contact with the uppermost FPC plate in each placing groove 8, and the adsorption and pasting operation is completed.

[0049] After the pasting process is completed, the staff takes the PET film off the second lifting plate 4, replaces a new PET film to continue the pasting operation, and repeats the above steps.

[0050] It should be noted that as the pasting work continues to advance, the overall height of the stacked FPC plates gradually decreases. In view of the fact that the first lifting plate 3 is connected with the reset spring 5 at the bottom, when the downward pressure is applied, the spring is compressed, so that the first lifting plate 3 moves downward along the guide column 2; and the supporting block 6 is connected with the machine box 1, and the position remains fixed. The downward movement of the first lifting plate 3 can make the FPC plate and the PET film in the placing groove 8 contact, so that the FPC plate in the placing groove 8 is pasted one by one.

[0051] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A PET auxiliary tacking device for FPC, characterized by, Including machine box (1), guide column (2), first lifting plate (3), second lifting plate (4), reset spring (5) and support block (6), the machine box (1) is provided with containing cavity (7), the guide column (2) is vertically arranged in the containing cavity (7), and a plurality of parallel arrangements are provided; The first lifting plate (3) can be arranged on each guide column (2) and located in the containing cavity (7); a plurality of placing grooves (8) are arranged on the first lifting plate (3) at intervals, and the placing grooves (8) are used for stacking FPC boards; each placing groove (8) is provided with the support block (6), and the support block (6) is connected with the machine box (1); the lower end of each guide column (2) is sleeved with the reset spring (5), and the two ends of the reset spring (5) are connected with the bottom of the first lifting plate (3) and the machine box (1) respectively; The second lifting plate (4) is movably arranged on each guide column (2), and the second lifting plate (4) is located above the first lifting plate (3), and the PET film is adsorbed on the side of the second lifting plate (4) facing the first lifting plate (3).

2. The PET auxiliary pasting device for FPC according to claim 1, characterized in that, The second lifting plate (4) is made of transparent material.

3. The PET auxiliary pasting device for FPC according to claim 2, characterized in that, The side of the second lifting plate (4) facing the first lifting plate (3) is provided with a positioning groove for positioning the PET film.

4. The PET auxiliary pasting device for FPC according to claim 1, characterized in that, The side of the second lifting plate (4) away from the first lifting plate (3) is provided with two handles (9).

5. The PET auxiliary pasting device for FPC according to claim 1, characterized in that, The machine box (1) comprises a top plate (11), a connecting shell (12) and a bottom plate (13), the connecting shell (12) is used for connecting the top plate (11) and the bottom plate (13), the top plate (11) is located above the bottom plate (13), and the top plate (11), the connecting shell (12) and the bottom plate (13) form the containing cavity (7).

6. The PET auxiliary pasting device for FPC according to claim 5, characterized in that, The top plate (11) is detachably connected to the connecting shell (12) by insertion.

7. The PET auxiliary pasting device for FPC according to claim 5, characterized in that, The bottom plate (13) is provided with an anti-skid layer away from the connecting shell (12).

8. The PET auxiliary pasting device for FPC according to claim 5, characterized in that, The two ends of the reset spring (5) are detachably connected to the first lifting plate (3) and the bottom plate (13) by hooking.