Flexible circuit board cover film jig

Abstract

The utility model discloses a flexible circuit board cover film jig which comprises an upper beam plate which is arranged above a processing table, a pressing plate is arranged between two supporting rods, an elastic connecting plate is arranged at the upper end of the pressing plate, and a first electric push rod is arranged above the elastic connecting plate; the first telescopic cavity is formed in the lower end of the machining table, a lifting plate is arranged in the first telescopic cavity, a telescopic hole is formed in the upper end of the machining table, a connecting base is arranged in the telescopic hole, a positioning rod is arranged above the connecting base, and a compression spring is arranged in a second telescopic cavity. According to the cover film jig, the telescopic positioning rod structure is arranged at the bottom of the machining table, the flexible circuit board is positioned through the positioning rod, the laminating precision of the cover film and the flexible circuit board is ensured, the positioning rod structure can be adjusted in a lifting mode, laminating of the cover film is not affected, taking-down of the flexible circuit board is not affected, and the using effect of the jig is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of circuit board cover films, in particular to a fixture for flexible circuit board cover films. Background Technique

[0002] A flexible circuit board is a highly reliable and extremely flexible printed circuit board made of polyimide or polyester film as the base material, with the characteristics of high wiring density, light weight, thin thickness, and good bendability. In the process of manufacturing a flexible circuit board, after forming conductive circuits on the substrate, a cover film needs to be pasted on the conductive circuits to protect the conductive circuits. The cover film, generally also called a protective film, is a bubble cover film suitable for thermoforming or cold forming, which mainly serves to protect the circuits from oxidation and damage.

[0003] The Chinese patent publication number is CN211481626U, and the authorization announcement date is September 11, 2020. The fixture for flexible circuit board cover films includes a base, a vertical plate, and a top plate. The base and the top plate are respectively connected to both ends of the vertical plate. Grooves are respectively dug on both outer walls of the base. The inner wall of the groove is rotatably connected with a first screw rod. A first gear is connected to the outer wall of the first screw rod. A second gear is meshed and connected to the outer wall of the first gear. A rotating shaft is connected to the outer wall of the second gear. The end of the rotating shaft away from the second gear is connected to the top plate. A fixed seat is connected to the top of the base. A moving plate is connected to the top of the fixed seat. A film covering member is connected to the top of the moving plate. The moving plate is movably connected to the outer wall of the first screw rod. In the utility model, when an electric telescopic rod controls the pressing plate to move upward, the moving plate drives the film covering member to move upward, so as to facilitate the convenient and quick removal of the covered film product after fitting, which is beneficial to improving work efficiency and reducing production costs.

[0004] The existing cover film fixture has no positioning structure to position the flexible circuit board. It is necessary for the staff to visually fit the cover film and the flexible circuit board. The cover film is prone to deviation during fitting, reducing the fitting accuracy of the cover film and not meeting the use requirements. Content of the Utility Model

[0005] The purpose of the utility model is to provide a fixture for flexible circuit board cover films to solve the problem that the existing cover film fixture has no positioning structure to position the flexible circuit board, and it is necessary for the staff to visually fit the cover film and the flexible circuit board. The cover film is prone to deviation during fitting, reducing the fitting accuracy of the cover film and not meeting the use requirements as mentioned in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution: A fixture for flexible circuit board cover films includes a processing table, and further includes:

[0007] Upper beam plate, which is arranged above the processing table. Support rods are arranged below both ends of the upper beam plate. There are two support rods, and both ends of the support rods are fixedly connected to the processing table and the upper beam plate respectively. A pressing plate is arranged between the two support rods. An elastic connecting plate is arranged at the upper end of the pressing plate, and the elastic connecting plate is connected to the pressing plate by screws. A first electric push rod is arranged above the elastic connecting plate, and the first electric push rod is fixedly connected to the upper beam plate and the elastic connecting plate;

[0008] First telescopic cavity, which is arranged inside the lower end of the processing table. A lifting plate is arranged inside the first telescopic cavity, and the lifting plate is slidably connected to the processing table. At least four telescopic holes are arranged inside the upper end of the processing table, and the telescopic holes are equidistant at the upper end of the processing table. The telescopic holes are communicated with the first telescopic cavity. A connecting seat is arranged inside the telescopic hole, and the lower end of the connecting seat is fixedly connected to the lifting plate. The connecting seat is slidably connected to the processing table. A second telescopic cavity is arranged inside the connecting seat. A positioning rod is arranged above the connecting seat, and one end of the positioning rod extends into the second telescopic cavity. The positioning rod is slidably connected to the connecting seat. A compression spring is arranged inside the second telescopic cavity, and both ends of the compression spring are fixedly connected to the positioning rod and the connecting seat respectively.

[0009] Preferably, a rubber pad is arranged at the upper end of the processing table, and the rubber pad is integrally connected to the processing table.

[0010] Preferably, two first chutes are arranged at both ends of the pressing plate, and the two first chutes are correspondingly arranged with the support rods. The support rods are slidably connected to the pressing plate.

[0011] Preferably, a reserved cavity is arranged inside the pressing plate. An exhaust fan is arranged above the pressing plate, and the exhaust fan is connected to the pressing plate by screws. Four suction cups are arranged at the lower end of the pressing plate, and the suction cups are integrally connected to the pressing plate. The lower ends of the suction cups are flush with the lower end of the pressing plate, and the exhaust fan and the suction cups are both communicated with the reserved cavity.

[0012] Preferably, shock-absorbing support seats are arranged below the processing table. There are two shock-absorbing support seats, and the shock-absorbing support seats are connected to the processing table by screws. An electric control panel is arranged on one side of the processing table, and the electric control panel is fixedly connected to the processing table. A cross plate is arranged between the two shock-absorbing support seats, and the cross plate is fixedly connected to the shock-absorbing support seats. A second electric push rod is arranged below the lifting plate, and the second electric push rod is fixedly connected to the cross plate and the lifting plate.

[0013] Preferably, second sliding grooves are provided on the inner wall of the second telescopic cavity. There are two second sliding grooves. Sliders are provided on both sides of the lower end of the positioning rod. There are two sliders, and the sliders are fixed to the positioning rod. One end of the slider extends into the second sliding groove, and the slider is slidably connected to the connecting seat.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] 1. Through the arrangement of the positioning rod, lifting plate, second electric push rod, connecting seat and compression spring in the device of the present utility model, the positioning rod and the connecting seat form a telescopic positioning structure. The second electric push rod drives the lifting plate to lift and lower. When the lifting plate rises, the positioning rod extends out and passes through the flexible circuit board for positioning along with the flexible circuit board. When the pressing plate descends and contacts the positioning rod to apply pressure, the positioning rod is pressed into the second telescopic cavity, which will not affect the bonding of the cover film. The compression spring is in a compressed state. When the pressing plate rises, the compression spring applies an upward thrust to the positioning rod, and under the action of the thrust, the positioning rod is ejected. After the cover film bonding is completed, the second electric push rod is driven to drive the lifting plate to descend, and as the lifting plate descends, the positioning rod drops, which will not affect the removal of the flexible circuit board;

[0016] 2. Through the arrangement of the exhaust fan, suction cup and reserved cavity in the device of the present utility model, the exhaust fan is turned on to generate suction, and the air in the reserved cavity is extracted. The suction cup is arranged flush with the lower end face of the pressing plate, and under the action of the suction, the cover film is adsorbed on the lower end of the pressing plate, eliminating the need for manual covering of the cover film. Description of the Drawings

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the connection structure diagram of the pressing plate and the support rod of the present utility model;

[0019] Figure 3 is the connection relationship diagram of the exhaust fan and the pressing plate of the present utility model;

[0020] Figure 4 is the connection relationship diagram of the positioning rod and the processing table of the present utility model;

[0021] Figure 5 is the Figure 4 local enlarged view of area A of the present utility model.

[0022] In the figure: 1. Processing table; 2. Shock-absorbing support seat; 3. Electric control panel; 4. Rubber pad; 5. Upper beam plate; 6. Pressing plate; 7. Support rod; 8. First electric push rod; 9. Elastic connecting plate; 10. Exhaust fan; 11. Positioning rod; 12. First chute; 13. Suction cup; 14. Reserved cavity; 15. Cross plate; 16. Second electric push rod; 17. First telescopic cavity; 18. Lifting plate; 19. Connecting seat; 20. Second telescopic cavity; 21. Second chute; 22. Compression spring; 23. Slide block; 24. Telescopic hole. Detailed implementation manners

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0024] Please refer to Figures 1-5 , an embodiment provided by the present invention: A flexible circuit board covering film jig, including a processing table 1, further including:

[0025] An upper beam plate 5, which is arranged above the processing table 1. Below both ends of the upper beam plate 5, there are support rods 7. There are two support rods 7, and both ends of the support rods 7 are fixedly connected to the processing table 1 and the upper beam plate 5 respectively. Between the two support rods 7, there is a pressing plate 6. The upper end of the pressing plate 6 is provided with an elastic connecting plate 9, and the elastic connecting plate 9 and the pressing plate 6 are connected by screws. Above the elastic connecting plate 9, there is a first electric push rod 8, and the first electric push rod 8 is fixedly connected to the upper beam plate 5 and the elastic connecting plate 9;

[0026] A first telescopic cavity 17, which is arranged inside the lower end of the processing table 1. Inside the first telescopic cavity 17, there is a lifting plate 18, and the lifting plate 18 is slidably connected to the processing table 1. Inside the upper end of the processing table 1, there are at least four telescopic holes 24, and the telescopic holes 24 are equidistant at the upper end of the processing table 1. The telescopic holes 24 are communicated with the first telescopic cavity 17. Inside the telescopic holes 24, there are connecting seats 19, and the lower ends of the connecting seats 19 are fixedly connected to the lifting plate 18. The connecting seats 19 are slidably connected to the processing table 1. Inside the connecting seats 19, there is a second telescopic cavity 20. Above the connecting seats 19, there is a positioning rod 11, and one end of the positioning rod 11 extends into the second telescopic cavity 20. The positioning rod 11 is slidably connected to the connecting seat 19. Inside the second telescopic cavity 20, there is a compression spring 22, and both ends of the compression spring 22 are fixedly connected to the positioning rod 11 and the connecting seat 19 respectively.

[0027] During use, place the flexible printed circuit board flat on the processing table 1, pass the positioning rod 11 through the flexible printed circuit board for positioning, attach the covering film to the lower end of the pressing plate 6, drive the first electric push rod 8 to drive the pressing plate 6 to descend. As the pressing plate 6 descends, the covering film is attached to and pressed against the flexible printed circuit board. The pressing plate 6 contacts and presses on the positioning rod 11, pressing the positioning rod 11 into the second telescopic cavity 20. When the pressing plate 6 ascends, the compressed spring 22 exerts an upward thrust on the positioning rod 11, ejecting the positioning rod 11.

[0028] Please refer to Figure 1 and Figure 4 , a rubber pad 4 is provided at the upper end of the processing table 1, and the rubber pad 4 is integrally connected to the processing table 1, playing a protective role for the flexible printed circuit board through the rubber pad 4.

[0029] Please refer to Figure 1 and Figure 2 , two first sliding grooves 12 are provided at both ends of the pressing plate 6. There are two first sliding grooves 12, and the first sliding grooves 12 are correspondingly arranged with the support rods 7. The support rods 7 are slidably connected to the pressing plate 6, playing a role of guiding and limiting the ascending and descending pressing plate 6 through the first sliding grooves 12 and the support rods 7, ensuring the stable ascending and descending of the pressing plate 6 and fully pressing the covering film onto the flexible printed circuit board.

[0030] Please refer to Figure 1 , Figure 2 and Figure 3 , a reserved cavity 14 is provided inside the pressing plate 6. An exhaust fan 10 is provided above the pressing plate 6, and the exhaust fan 10 is connected to the pressing plate 6 by screws. Four suction cups 13 are provided at the lower end of the pressing plate 6, and the suction cups 13 are integrally connected to the pressing plate 6. The lower ends of the suction cups 13 are flush with the lower end of the pressing plate 6, and the exhaust fan 10 and the suction cups 13 are both communicated with the reserved cavity 14. By generating suction with the exhaust fan 10, the covering film is adsorbed to the lower end of the pressing plate 6 by means of the suction cups 13.

[0031] Please refer to Figure 1 and Figure 4 , two shock-absorbing support seats 2 are provided below the processing table 1. There are two shock-absorbing support seats 2, and the shock-absorbing support seats 2 are connected to the processing table 1 by screws. An electric control panel 3 is provided on one side of the processing table 1, and the electric control panel 3 is fixedly connected to the processing table 1. A cross plate 15 is provided between the two shock-absorbing support seats 2, and the cross plate 15 is fixedly connected to the shock-absorbing support seats 2. A second electric push rod 16 is provided below the lifting plate 18, and the second electric push rod 16 is fixedly connected to the cross plate 15 and the lifting plate 18. The second electric push rod 16 drives the lifting plate 18 to ascend and descend. After the covering film is attached, drive the second electric push rod 16 to drive the lifting plate 18 to descend. As the lifting plate 18 descends, the positioning rod 11 drops, which will not affect the removal of the flexible printed circuit board.

[0032] Please refer toFigure 4 and Figure 5 On the inner wall of the second telescopic cavity 20, there are two second sliding grooves 21. On both sides of the lower end of the positioning rod 11, there are two sliding blocks 23. The sliding blocks 23 are fixed to the positioning rod 11. One end of the sliding block 23 extends into the second sliding groove 21, and the sliding block 23 is slidably connected to the connecting seat 19. The sliding block 23 and the second sliding groove 21 play a role in guiding and limiting the lifting positioning rod 11, and can also prevent the positioning rod 11 from falling off due to being completely ejected.

[0033] Working principle: Place the flexible circuit board flat on the processing table 1. Drive the second electric push rod 16 to drive the upper end of the lifting plate 18, pass the positioning rod 11 through the flexible circuit board for positioning, attach the cover film to the lower end of the pressing plate 6, turn on the exhaust fan 10 to generate suction, and adsorb the cover film on the lower end of the pressing plate 6 by means of the suction cup 13; drive the first electric push rod 8 to drive the pressing plate 6 to descend. As the pressing plate 6 descends, the cover film is attached to and pressed against the flexible circuit board. The pressing plate 6 contacts and presses the positioning rod 11, pressing the positioning rod 11 into the second telescopic cavity 20. When the pressing plate 6 rises, the compressed spring 22 applies an upward thrust to the positioning rod 11, ejecting the positioning rod 11; after the processing is completed, drive the second electric push rod 16 to drive the lifting plate 18 to descend. As the lifting plate 18 descends, the positioning rod 11 drops, which will not affect the removal of the flexible circuit board.

[0034] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board cover film jig, comprising a processing table (1), characterized in that: Also includes: An upper beam plate (5) is arranged above the processing table (1), support rods (7) are arranged below both ends of the upper beam plate (5), two support rods (7) are arranged, and both ends of the support rods (7) are fixedly connected to the processing table (1) and the upper beam plate (5), respectively, a pressing plate (6) is arranged between the two support rods (7), an elastic connecting plate (9) is arranged at the upper end of the pressing plate (6), and the elastic connecting plate (9) is connected to the pressing plate (6) by screws, and a first electric push rod (8) is arranged above the elastic connecting plate (9), and the first electric push rod (8) is fixedly connected to the upper beam plate (5) and the elastic connecting plate (9); A first telescopic cavity (17) is arranged inside the lower end of the processing table (1); a lifting plate (18) is arranged inside the first telescopic cavity (17), and the lifting plate (18) is slidably connected to the processing table (1); a telescopic hole (24) is arranged inside the upper end of the processing table (1); at least four telescopic holes (24) are arranged, and the telescopic holes (24) are equidistant at the upper end of the processing table (1); the telescopic holes (24) are connected to the first telescopic cavity (17); a connecting seat (19) is arranged inside the telescopic hole (24), and the lower end of the connecting seat (19) is The connecting seat (19) is fixedly connected to the lifting plate (18), the connecting seat (19) is slidably connected to the processing table (1), a second telescopic cavity (20) is arranged inside the connecting seat (19), a positioning rod (11) is arranged above the connecting seat (19), and one end of the positioning rod (11) extends to the inside of the second telescopic cavity (20), the positioning rod (11) is slidably connected to the connecting seat (19), a compression spring (22) is arranged inside the second telescopic cavity (20), and the two ends of the compression spring (22) are respectively fixedly connected to the positioning rod (11) and the connecting seat (19).

2. A flexible circuit board cover film jig according to claim 1, characterized in that: A rubber pad (4) is provided at the upper end of the processing table (1), and the rubber pad (4) and the processing table (1) are connected as a whole.

3. A flexible circuit board cover film jig according to claim 1, characterized in that: Both ends of the pressing plate (6) are provided with first sliding grooves (12), two first sliding grooves (12) are provided, and the first sliding grooves (12) are provided corresponding to the support rod (7), and the support rod (7) is slidably connected to the pressing plate (6).

4. A flexible circuit board cover film jig according to claim 1, characterized in that: A reserved cavity (14) is provided inside the pressing plate (6), an exhaust fan (10) is provided above the pressing plate (6), and the exhaust fan (10) is connected to the pressing plate (6) by screws, a suction cup (13) is provided at the lower end of the pressing plate (6), four suction cups (13) are provided, and the suction cup (13) and the pressing plate (6) are connected as a whole, the lower end of the suction cup (13) is arranged flush with the lower end of the pressing plate (6), and the exhaust fan (10) and the suction cup (13) are connected to the reserved cavity (14).

5. The flexible circuit board cover film jig according to claim 1, characterized in that: A shock-absorbing support seat (2) is arranged below the processing table (1), two shock-absorbing support seats (2) are arranged, and the shock-absorbing support seat (2) is connected to the processing table (1) by screws; an electric control panel (3) is arranged on one side of the processing table (1), and the electric control panel (3) is fixedly connected to the processing table (1); a transverse plate (15) is arranged between the two shock-absorbing support seats (2), and the transverse plate (15) is fixedly connected to the shock-absorbing support seat (2); a second electric push rod (16) is arranged below the lifting plate (18), and the second electric push rod (16) is fixedly connected to the transverse plate (15) and the lifting plate (18).

6. A flexible circuit board cover film jig according to claim 5, characterized in that: A second slide groove (21) is provided on the inner wall of the second telescopic cavity (20), and two second slide grooves (21) are provided. Slide blocks (23) are provided on both sides of the lower end of the positioning rod (11), and two slide blocks (23) are provided. The slide blocks (23) are fixed to the positioning rod (11), and one end of the slide block (23) extends to the inside of the second slide groove (21), and the slide block (23) is slidably connected to the connecting seat (19).

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