Device for preventing film from being broken

Abstract

The utility model discloses a device for preventing a film from being broken, which relates to the technical field of PCB (Printed Circuit Board) film laminating, and comprises two U-shaped frame plates, an adjusting screw rod is arranged at the side end of the U-shaped frame plate on the right side in a penetrating and sliding manner through threads, a limiting circular plate is fixedly arranged at the left side end of the adjusting screw rod, and a convex groove is formed in the right side of the U-shaped frame plate on the left side; the limiting circular plates are rotationally connected into convex grooves formed in the U-shaped frame plates in a sleeved mode, a guide rod is fixedly installed at the right side end of the U-shaped frame plate located on the left side, the guide rod is installed at the side end of the U-shaped frame plate on the right side in a penetrating and sliding mode, and the opposite faces of the two U-shaped frame plates are each provided with two fixing mechanisms. Through the arrangement of the four telescopic hollow pipes, the rubber plugs and the suction cups, when the device takes out a film at the upper end of the PCB, the side edge of the film at the upper end of the PCB does not make contact with other objects, and therefore the upper end of the PCB is effectively prevented from being broken, and the safety of the film is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB coating, in particular to a device for preventing film from breaking. Background Art

[0002] In PCB production, the dry film process is to apply photoresist on the surface of the PCB, and then transfer the circuit pattern on the photoresist through a photolithography machine to form a roller printing process of the circuit pattern;

[0003] At present, the existing automatic film tearing device for the PCB board dry film process (such as patent number: CN214960342U) discloses that the pressing plate is driven down by a lifting cylinder to suck the film on the PCB board onto the tape on the outside of the unwinding roller, and then the torn film and tape are wound up as the winding roller rotates, so as to facilitate the unified treatment of waste materials.

[0004] However, currently after laminating the upper end of the PCB board, a tool is generally used to lift it up from the side end and then transfer it. However, since the side of the film is relatively brittle, this separation can easily cause the dry film to break, thereby affecting the subsequent transfer. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] In view of the deficiencies in the prior art, the utility model provides a device for preventing film breakage, which solves the problem that after the upper end of the PCB board is coated, a tool is generally used to pick it up from its side end and then transfer it. However, since the side of the film is brittle, this separation is very likely to cause the dry film to break, thereby affecting the subsequent transfer technology problem.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] The fixing mechanism can be adjusted by the user to adjust the position of the fixing rod and the fixing screw can be adjusted by the user to adjust the position of the fixing rod.

[0010] Preferably: fixed placement plates are fixedly installed on opposite surfaces of the two U-shaped frame plates, and PCB printed circuit boards are provided on the upper ends of the four fixed placement plates.

[0011] Preferably: a suction cup is fixedly installed at the lower end of the telescopic hollow tube, the telescopic hollow tube is connected to the inside of the suction cup, a rubber plug is provided at the upper end of the telescopic hollow tube, a locking screw is threadedly installed at the right end of the connecting plate, and the left end of the locking screw is fitted to the circumferential surface of the telescopic hollow tube.

[0012] (III) Beneficial effects

[0013] 1. The present invention provides four telescopic hollow tubes, rubber plugs and suction cups, so that when the device takes out the film on the upper end of the PCB printed circuit board, the side of the film on the upper end will not touch other objects, thereby effectively preventing the film on the upper end of the PCB printed circuit board from being broken and improving the safety of the film.

[0014] Second, the present invention allows the device to be adjusted by providing two U-shaped frames, and adjusting screws, limiting circular plates and guide rods provided between the two U-shaped frames. When the PCB printed circuit board is fixed with dry film, it can be used for PCB printed circuit boards of different sizes, thereby effectively improving the applicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0016] Figure 1 It is a structural diagram of the entire utility model;

[0017] Figure 2 This is a structural diagram of the U-shaped frame plate of the utility model;

[0018] Figure 3 This is a structural diagram of the connection plate of the utility model;

[0019] Figure 4 It is a structural diagram of the telescopic hollow tube of the utility model.

[0020] Legend: 11. Connecting plate; 12. Telescopic hollow tube; 13. Rubber plug; 14. Suction cup; 15. Locking screw; 21. U-shaped frame plate; 22. Fixed placement plate; 23. Guide rod; 24. Adjusting screw; 25. Convex groove; 26. Limiting circular plate; 31. PCB printed circuit board. DETAILED DESCRIPTION

[0021] The embodiment of the present application provides a device to prevent film breakage, which effectively solves the problem that, after the upper end of the PCB board is coated, a tool is generally used to pick it up from its side end and then transfer it. However, since the side edge of the film is relatively brittle, this separation is very likely to cause the dry film to break, thereby affecting the subsequent transfer. The present invention provides four telescopic hollow tubes, rubber plugs and suction cups, so that when the device takes out the film on the upper end of the PCB printed circuit board, the side edge of the film on the upper end will not touch other objects, thereby effectively preventing the film on the upper end of the PCB printed circuit board from breaking and improving the safety of the film.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the technical solution in the embodiment of the present application effectively solves the technical problem that after the upper end of the PCB board is coated, a tool is generally used to pick it up from its side end and then transfer it. However, since the side of the film is brittle, this separation is very likely to cause the dry film to break, thereby affecting the subsequent transfer. The overall idea is as follows:

[0024] In view of the problems existing in the prior art, the utility model provides a device for preventing film breakage, comprising two U-shaped frame plates 21, wherein the side end of the U-shaped frame plate 21 on the right side is slidably installed with an adjusting screw 24 through a thread, and the left end of the adjusting screw 24 is fixedly installed with a limiting circular plate 26, and the right side of the U-shaped frame plate 21 on the left side is provided with a convex groove 25, and the limiting circular plate 26 is rotatably sleeved in the convex groove 25 provided in the U-shaped frame plate 21, and the right end of the U-shaped frame plate 21 on the left side is fixedly installed with a guide rod 23, and the guide rod 23 is slidably installed through the side end of the right U-shaped frame plate 21, and the opposite surfaces of the two U-shaped frame plates 21 are provided with two sets of fixing mechanisms. When the device is used for the dry film process of the PCB printed circuit board 31 during the production process, the user can adjust the position of the adjusting screw 24 by rotating the adjusting screw 24. The screw 24 is threadedly connected with the U-shaped frame plate 21 on the right side by adjusting the screw 24, and the adjusting screw 24 is limited and rotated on the U-shaped frame plate 21 on the left side by the limiting circular plate 26, so that the U-shaped frame plate 21 on the right side can be moved back and forth. At this time, the distance between the two U-shaped frame plates 21 can be adjusted to the same distance as the PCB printed circuit board 31, and then the PCB printed circuit board 31 is placed on the upper ends of the four fixed placement plates 22, so that the adjusting screw 24 is adjusted in the reverse direction, so that the PCB printed circuit board 31 can be fastened through the two U-shaped frame plates 21. The present invention provides two U-shaped frame plates 21, and the adjusting screw 24 and the limiting circular plate 26 are set between the two U-shaped frame plates 21, and The guide rod 23 allows the device to be adjusted. When the PCB printed circuit board 31 is fixed with a dry film, it can be used for PCB printed circuit boards 31 of different sizes, effectively improving the applicability of the device. The fixing mechanism includes a connecting plate 11, which is fixedly installed on the side end of the U-shaped frame plate 21. A telescopic hollow tube 12 is slidably installed on the upper end of the connecting plate 11. Fixed placement plates 22 are fixedly installed on the opposite surfaces of the two U-shaped frame plates 21. The upper ends of the four fixed placement plates 22 are provided with a PCB printed circuit board 31. A suction cup 14 is fixedly installed on the lower end of the telescopic hollow tube 12. The telescopic hollow tube 12 is connected to the inside of the suction cup 14. A rubber plug 13 is provided on the upper end of the telescopic hollow tube 12. A locking screw is installed on the right side end of the connecting plate 11 through a thread. The screw 15, the left end of the locking screw 15 is fitted on the circumferential surface of the telescopic hollow tube 12. Secondly, after the dry film is applied to the PCB printed circuit board 31, the user can rotate the locking screw 15, and through the threaded connection between the locking screw 15 and the connecting plate 11, the locking screw 15 can be separated from the telescopic hollow tube 12, and then the telescopic hollow tube 12 can be moved downward. After that, the suction cup 14 is fitted with the film on the upper end of the PCB printed circuit board 31, and then the rubber plug 13 is covered to form suction inside, so that the film on the upper end of the PCB printed circuit board 31 can be connected. Then the user can pull up the telescopic hollow tube 12 to take out the film. The four telescopic hollow tubes 12, the rubber plug 13 and the suction cup 14 are provided in the present invention.When the device takes out the film on the upper end of the PCB printed circuit board 31, the side edge of the film on the upper end will not touch other objects, thereby effectively preventing the film on the upper end of the PCB printed circuit board 31 from being broken and improving the safety of the film.

[0025] Working principle:

[0026] In the first step, when the device performs a dry film process on the PCB printed circuit board 31 during the production process, the user rotates the adjusting screw 24, through the threaded connection between the adjusting screw 24 and the U-shaped frame plate 21 on the right, and the adjusting screw 24 is limited and rotated on the U-shaped frame plate 21 on the left through the limiting circular plate 26, so that the U-shaped frame plate 21 on the right end can be moved back and forth. At this time, the distance between the two U-shaped frames 21 can be adjusted to the same distance as the size of the PCB printed circuit board 31, and then the PCB printed circuit board 31 is placed on the upper ends of the four fixed placement plates 22, so that the adjusting screw 24 is reversely adjusted, so that the PCB printed circuit board 31 can be fastened through the two U-shaped frames 21. The new type allows the device to be adjusted by setting two U-shaped frames 21, and the adjusting screw 24, the limiting circular plate 26 and the guide rod 23 set between the two U-shaped frames 21. When the PCB printed circuit board 31 is dry-film fixed, it can be targeted at PCB printed circuit boards 31 of different sizes, effectively improving the applicability of the device.

[0027] The second step, secondly, after the dry film is applied to the PCB printed circuit board 31, the user can rotate the locking screw 15, and through the threaded connection between the locking screw 15 and the connecting plate 11, the locking screw 15 can be separated from the telescopic hollow tube 12, and then the telescopic hollow tube 12 can be moved downward, and then the suction cup 14 is fitted with the film on the upper end of the PCB printed circuit board 31, and then the rubber plug 13 is covered to form suction inside, so that the film on the upper end of the PCB printed circuit board 31 can be connected, and then the user can pull up the telescopic hollow tube 12 to take out the film. The four telescopic hollow tubes 12, the rubber plug 13 and the suction cup 14 are provided in the present invention, so that when the device takes out the film on the upper end of the PCB printed circuit board 31, the side of the film on the upper end will not touch other objects, thereby effectively preventing the film from breaking on the upper end of the PCB printed circuit board 31 and improving the safety of the film.

[0028] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A device for preventing film from breaking, comprising two U-shaped frame plates (21), characterized in that: An adjusting screw (24) is slidably installed through a thread on the side end of the U-shaped frame plate (21) located on the right side, and a limiting circular plate (26) is fixedly installed on the left end of the adjusting screw (24); The right side of the U-shaped frame plate (21) on the left side is provided with a convex groove (25), the limiting circular plate (26) is rotatably sleeved in the convex groove (25) provided on the U-shaped frame plate (21), the right side end of the U-shaped frame plate (21) on the left side is fixedly installed with a guide rod (23), and the guide rod (23) penetrates and is slidably installed on the side end of the right U-shaped frame plate (21); Wherein, two sets of fixing mechanisms are respectively arranged on the opposite surfaces of the two U-shaped frame plates (21), wherein the fixing mechanisms include a connecting plate (11), wherein the connecting plate (11) is fixedly mounted on the side ends of the U-shaped frame plates (21), and a telescopic hollow tube (12) is slidably mounted through the upper ends of the connecting plates (11).

2. The device for preventing film breakage according to claim 1, characterized in that: Fixed placement plates (22) are fixedly mounted on opposite surfaces of the two U-shaped frame plates (21).

3. The device for preventing film breakage according to claim 2, characterized in that: A PCB printed circuit board (31) is provided at the upper ends of the four fixed placement plates (22).

4. The device for preventing film breakage according to claim 3, characterized in that: A suction cup (14) is fixedly mounted on the lower end of the telescopic hollow tube (12).

5. The device for preventing film breakage according to claim 4, characterized in that: The telescopic hollow tube (12) is connected to the interior of the suction cup (14); Wherein, a rubber plug (13) is provided at the upper end of the telescopic hollow tube (12).

6. The device for preventing film breakage according to claim 5, characterized in that: A locking screw (15) is threadedly mounted on the right side end of the connecting plate (11); The left end of the locking screw (15) is fitted on the circumferential surface of the telescopic hollow tube (12).

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