Pressing structure of flexible printed circuit board

Abstract

The utility model discloses a pressing structure of a flexible printed circuit board, which belongs to the technical field of flexible printed circuit board processing and comprises an electrostatic table, a printed circuit board is arranged at the upper end of the electrostatic table, and a flexible circuit board is arranged at the upper end of the printed circuit board. When the lifting driving mechanism pushes the pressing block mechanism to move downwards and the lower end of the pressing block mechanism makes contact with the flexible circuit board and the printed circuit board, the lifting driving mechanism continues to push the pressing block mechanism to move downwards, meanwhile, a plurality of sliding columns at the lower end of a movable plate push a sliding plate to move in a fixed frame, and a spring is compressed; the lower end of the pressing block mechanism abuts against the flexible circuit board and the printed circuit board through the flexibility of the spring, the flexible circuit board and the printed circuit board are pressed, the pressing work of the pressing block mechanism can be buffered and protected by arranging the buffering assembly, and the situation that the flexible circuit board and the printed circuit board are damaged due to the fact that the pressing force of the lifting driving mechanism is too large is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of flexible printed circuit board processing, and in particular relates to a pressing structure of a flexible printed circuit board. Background Art

[0002] Flexible printed circuit board, also known as flexible circuit board, flexible circuit board, flexible circuit board, soft board, is a special printed circuit board. It is characterized by light weight, thin thickness, softness and bendability. It is mainly used in many products such as mobile phones, laptops, PDAs, digital cameras, LCD screens, etc.

[0003] Chinese patent application No. 2020201965313 discloses a flexible circuit board pressing device, including a placement platform, a block pressing mechanism, a block pressing lifting drive mechanism, and a lifting control device; the block pressing mechanism is arranged above the placement platform; the block pressing lifting drive mechanism is connected to the block pressing mechanism and can drive the block pressing mechanism to lift; the lifting control device is connected to the block pressing lifting drive mechanism and can send a control signal to the block pressing lifting drive mechanism; the placement platform is provided with a plurality of positioning mechanisms for the corresponding flexible circuit board to be placed on the corresponding positioning mechanism; the block pressing mechanism is provided with a plurality of slots, each slot is arranged directly above the corresponding positioning mechanism; each slot can accommodate part of the area or the entire area of ​​the corresponding flexible circuit board. The flexible circuit board pressing device proposed in the utility model can squeeze out the moisture between the flexible circuit board and other accessories, improve the one-time yield rate, and reduce costs.

[0004] The lifting drive mechanism in the above-mentioned patent does not have a buffering function, and directly uses the lifting drive mechanism to drive the pressing mechanism to press the printed circuit board and the flexible circuit board, which is easy to cause damage to the printed circuit board and the flexible circuit board. At the same time, the original device uses an electrostatic table to adsorb and fix the printed circuit board and the flexible circuit board, but dust and other impurities will adhere to the electrostatic table after it is turned on, and the original device is not convenient to clean the top of the electrostatic table. Utility Model Content

[0005] In order to solve the problems raised in the above background technology, the utility model provides a pressing structure of a flexible printed circuit board, which has a buffering function and a pressing block structure that is not easy to cause damage to the printed circuit board and the flexible circuit board.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressing structure of a flexible printed circuit board, comprising an electrostatic table, a printed circuit board is arranged at the upper end of the electrostatic table, a flexible circuit board is arranged at the upper end of the printed circuit board, a fixing frame is arranged on one side of the upper end of the electrostatic table, a lifting control mechanism is arranged at the upper end of the fixing frame, a lifting drive mechanism is arranged at the lower end of the fixing frame, a pressing block mechanism is arranged on the lower side of the lifting drive mechanism, and the pressing block mechanism and the lifting drive mechanism are connected through a buffer component.

[0007] Preferably, the buffer assembly includes a movable plate, a fixed frame, a sliding column, a slide plate and a spring, wherein a movable plate is provided at the output end of the lifting drive mechanism, a plurality of fixed frames are provided at the upper end of the pressing block mechanism, a sliding column is provided at a position at the lower end of the movable plate corresponding to the fixed frame, a slide plate is provided at the lower end of the sliding column, and a spring is provided at the lower end of the slide plate.

[0008] Preferably, the lateral sides of the slide plate are in close contact with the inner wall of the fixing frame, and the longitudinal sides of the slide plate are flush with the sides of the fixing frame.

[0009] Preferably, a sliding hole corresponding to the sliding column is provided at the upper end of the fixing frame, and the sliding column and the sliding plate are an integrated welded structure.

[0010] Preferably, a fixed pipe is provided on the rear side of the electrostatic table, the fixed pipe is connected to the electrostatic table through a support frame, an air outlet is provided at one end of the fixed pipe close to the electrostatic table, a fan is provided on the rear side of the fixed pipe, and the fan and the fixed pipe are connected through an air supply pipe.

[0011] Preferably, the air outlet scoop is inclined toward the electrostatic table, and the air outlet scoop and the fixed pipe are welded into an integral structure.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model provides a buffer component. When the lifting drive mechanism pushes the pressing mechanism to move downward, when the lower end of the pressing mechanism contacts the flexible circuit board and the printed circuit board, the lifting drive mechanism continues to push the pressing mechanism to move downward. At the same time, a number of sliding columns at the lower end of the moving plate push the slide plate to move in the fixed frame. The spring is compressed, and the elasticity of the spring is used to make the lower end of the pressing mechanism press against the flexible circuit board and the printed circuit board, so that the flexible circuit board and the printed circuit board are pressed together. The buffer component can provide a buffering protection for the pressing work of the pressing mechanism, thereby preventing the flexible circuit board and the printed circuit board from being damaged by excessive pressing force of the lifting drive mechanism.

[0014] 2. The utility model sets a fan. When the electrostatic table is not in use, the fan is turned on. The fan supplies air to the fixed tube through the air supply tube. The air outlet at one end of the fixed tube blows out air, which can blow away dust and other impurities attached to the electrostatic table, thereby achieving the effect of cleaning the upper end of the electrostatic table. The fan is set to facilitate cleaning of the upper end of the electrostatic table, thereby preventing the electrostatic table from being attached to a large number of impurities when used for a long time. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the utility model;

[0016] Figure 2 This is a rear perspective view of the utility model;

[0017] Figure 3 This is a three-dimensional diagram of the movable plate of the utility model;

[0018] In the figure: 1. electrostatic table; 2. pressing block mechanism; 3. buffer assembly; 31. moving plate; 32. fixed frame; 33. sliding column; 34. sliding plate; 35. spring; 4. fixed frame; 5. lifting control mechanism; 6. lifting drive mechanism; 7. fixed pipe; 8. air outlet scoop; 9. printed circuit board; 10. flexible circuit board; 11. support frame; 12. fan; 13. air supply duct. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example 1

[0021] See also Figure 1-3 The utility model provides the following technical solutions: a pressing structure of a flexible printed circuit board, comprising an electrostatic table 1, a printed circuit board 9 is arranged on the upper end of the electrostatic table 1, a flexible circuit board 10 is arranged on the upper end of the printed circuit board 9, a fixing frame 4 is arranged on one side of the upper end of the electrostatic table 1, a lifting control mechanism 5 is arranged on the upper end of the fixing frame 4, a lifting drive mechanism 6 is arranged on the lower end of the fixing frame 4, a pressing block mechanism 2 is arranged on the lower side of the lifting drive mechanism 6, and the pressing block mechanism 2 and the lifting drive mechanism 6 are connected through a buffer component 3.

[0022] Specifically, the buffer assembly 3 includes a movable plate 31, a fixed frame 32, a sliding column 33, a slide plate 34 and a spring 35, wherein a movable plate 31 is provided at the output end of the lifting drive mechanism 6, a plurality of fixed frames 32 are provided at the upper end of the pressing mechanism 2, a sliding column 33 is provided at the position corresponding to the fixed frame 32 at the lower end of the movable plate 31, a slide plate 34 is provided at the lower end of the sliding column 33, and a spring 35 is provided at the lower end of the slide plate 34.

[0023] By adopting the above technical solution, the buffer component 3 can provide a buffer protection for the pressing work of the pressing mechanism 2, thereby preventing the flexible circuit board 10 and the printed circuit board 9 from being damaged due to excessive pressing force of the lifting drive mechanism 6.

[0024] Specifically, the lateral sides of the slide plate 34 are in close contact with the inner wall of the fixing frame 32 , and the longitudinal sides of the slide plate 34 are flush with the sides of the fixing frame 32 .

[0025] By adopting the above technical solution, the sliding plate 34 slides more stably in the fixing frame 32 , and the side edge of the sliding plate 34 does not protrude from the side edge of the fixing frame 32 .

[0026] Specifically, a sliding hole corresponding to the sliding column 33 is provided at the upper end of the fixing frame 32 , and the sliding column 33 and the sliding plate 34 are a welded integral structure.

[0027] By adopting the above technical solution, the sliding column 33 can slide in the fixed frame 32, and the sliding column 33 and the sliding plate 34 are welded into an integrated structure, which is more solid.

[0028] When the present embodiment is used, when the pressing structure of the flexible printed circuit board is used, the device is installed in a suitable position, the printed circuit board 9 and the flexible circuit board 10 are placed on the electrostatic table 1, the lifting control mechanism 5 controls the lifting drive mechanism 6 to start, the lifting drive mechanism 6 starts to push the block pressing mechanism 2 to move downward, and the block pressing mechanism 2 moves downward to press the printed circuit board 9 and the flexible circuit board 10 on the electrostatic table 1. By setting the buffer component 3, when the lifting drive mechanism 6 pushes the block pressing mechanism 2 to move downward, when the lower end of the block pressing mechanism 2 contacts the flexible circuit board 10 and the printed circuit board 9, the lifting drive mechanism 6 continues to push the block pressing mechanism 2 to move downward, and at the same time, a number of sliding columns 33 at the lower end of the moving plate 31 push the slide plate 34 to move in the fixed frame 32, and the spring 35 is compressed. The elasticity of the spring 35 is used to make the lower end of the block pressing mechanism 2 press against the flexible circuit board 10 and the printed circuit board 9, so that the flexible circuit board 10 and the printed circuit board 9 are pressed together. By setting the buffer component 3, the pressing work of the block pressing mechanism 2 can be buffered and protected, so as to avoid damage to the flexible circuit board 10 and the printed circuit board 9 caused by excessive pressing force of the lifting drive mechanism 6.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that: a fixed pipe 7 is arranged on the rear side of the electrostatic table 1, the fixed pipe 7 is connected to the electrostatic table 1 through a support frame 11, an air outlet 8 is arranged at one end of the fixed pipe 7 close to the electrostatic table 1, a fan 12 is arranged on the rear side of the fixed pipe 7, and the fan 12 is connected to the fixed pipe 7 through an air supply pipe 13.

[0031] By adopting the above technical solution, the fan 12 is provided to facilitate cleaning of the upper end of the electrostatic table 1, thereby preventing a large amount of impurities from being attached to the upper end of the electrostatic table 1 when the table 1 is used for a long time.

[0032] Specifically, the air outlet scoop 8 is inclined toward the electrostatic table 1 , and the air outlet scoop 8 and the fixed pipe 7 are welded into an integrated structure.

[0033] By adopting the above technical solution, it is convenient for the air outlet 8 to blow air to the electrostatic table 1, and the air outlet 8 and the fixing pipe 7 are welded into an integrated structure, which is more sturdy and durable.

[0034] When the present embodiment is used, by setting the fan 12, the fan 12 is turned on when the electrostatic table 1 is not in use, and the fan 12 supplies air to the fixed tube 7 through the air supply pipe 13. The air outlet 8 at one end of the fixed tube 7 blows out air, which can blow away dust and other impurities attached to the electrostatic table 1, thereby achieving the effect of cleaning the upper end of the electrostatic table 1. By setting the fan 12, it is convenient to clean the upper end of the electrostatic table 1, and it is avoided that a large amount of impurities are attached to the upper end of the electrostatic table 1 when the electrostatic table 1 is used for a long time.

[0035] The structure and working principle of the electrostatic table 1, the pressing mechanism 2, the fixing frame 4, the lifting control mechanism 5, the lifting drive mechanism 6, the printed circuit board 9 and the flexible circuit board 10 in the utility model have been disclosed in a flexible circuit board pressing device disclosed in Chinese patent application No. 2020201965313. The working principle is to place the printed circuit board 9 and the flexible circuit board 10 on the electrostatic table 1, and the lifting control mechanism 5 controls the lifting drive mechanism 6 to open. The lifting drive mechanism 6 opens and pushes the pressing mechanism 2 to move downward. The pressing mechanism 2 moves downward to press the printed circuit board 9 and the flexible circuit board 10 on the electrostatic table 1.

[0036] Working principle and use process of the utility model: When the pressing structure of the flexible printed circuit board is used, the device is installed in a suitable position, and the printed circuit board 9 and the flexible circuit board 10 are placed on the electrostatic table 1. The lifting control mechanism 5 controls the lifting drive mechanism 6 to start, and the lifting drive mechanism 6 starts to push the block pressing mechanism 2 to move downward, and the block pressing mechanism 2 moves downward to press the printed circuit board 9 and the flexible circuit board 10 on the electrostatic table 1. By setting the buffer component 3, the lifting drive mechanism 6 pushes the block pressing mechanism 2 to move downward. When the lower end of the block pressing mechanism 2 contacts the flexible circuit board 10 and the printed circuit board 9, the lifting drive mechanism 6 continues to push the block pressing mechanism 2 to move downward, and at the same time, a plurality of sliding columns 33 at the lower end of the moving plate 31 push the slide plate 34 to move in the fixed frame 32, and the spring 35 When compressed, the elasticity of the spring 35 is utilized to make the lower end of the pressing block mechanism 2 press against the flexible circuit board 10 and the printed circuit board 9, so that the flexible circuit board 10 and the printed circuit board 9 are pressed together. By setting the buffer component 3, a buffering protection effect can be played on the pressing work of the pressing block mechanism 2, so as to avoid damage to the flexible circuit board 10 and the printed circuit board 9 caused by excessive pressing force of the lifting drive mechanism 6. By setting the fan 12, the fan 12 is turned on when the electrostatic table 1 is not in use, and the fan 12 supplies air to the fixed tube 7 through the air supply pipe 13. The air outlet 8 at one end of the fixed tube 7 blows out air, which can blow away dust and other impurities attached to the electrostatic table 1, so as to achieve the effect of cleaning the upper end of the electrostatic table 1. By setting the fan 12, it is convenient to clean the upper end of the electrostatic table 1, so as to avoid the adhesion of a large number of impurities on the upper end of the electrostatic table 1 when the electrostatic table 1 is used for a long time.

[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressing structure for a flexible printed circuit board, comprising an electrostatic table, characterized in that: A printed circuit board is arranged at the upper end of the electrostatic table, a flexible circuit board is arranged at the upper end of the printed circuit board, a fixed frame is arranged at one side of the upper end of the electrostatic table, a lifting control mechanism is arranged at the upper end of the fixed frame, a lifting drive mechanism is arranged at the lower end of the fixed frame, a pressing block mechanism is arranged at the lower side of the lifting drive mechanism, and the pressing block mechanism and the lifting drive mechanism are connected through a buffer component.

2. The pressing structure of a flexible printed circuit board according to claim 1, characterized in that: The buffer assembly includes a movable plate, a fixed frame, a sliding column, a slide plate and a spring, wherein a movable plate is arranged at the output end of the lifting drive mechanism, a plurality of fixed frames are arranged at the upper end of the pressing block mechanism, a sliding column is arranged at a position corresponding to the fixed frame at the lower end of the movable plate, a slide plate is arranged at the lower end of the sliding column, and a spring is arranged at the lower end of the slide plate.

3. The pressing structure of a flexible printed circuit board according to claim 2, characterized in that: The lateral side edges of the slide plate are in close contact with the inner wall of the fixing frame, and the longitudinal side edges of the slide plate are flush with the side edges of the fixing frame.

4. The pressing structure of a flexible printed circuit board according to claim 2, characterized in that: The upper end of the fixing frame is provided with a sliding hole corresponding to the sliding column, and the sliding column and the sliding plate are a welded integral structure.

5. The pressing structure of a flexible printed circuit board according to claim 1, characterized in that: A fixed pipe is arranged at the rear side of the electrostatic table, the fixed pipe is connected to the electrostatic table through a support frame, an air outlet is arranged at one end of the fixed pipe close to the electrostatic table, a fan is arranged at the rear side of the fixed pipe, and the fan and the fixed pipe are connected through an air supply pipe.

6. The pressing structure of a flexible printed circuit board according to claim 5, characterized in that: The air outlet scoop is inclined toward the electrostatic table, and the air outlet scoop and the fixed pipe are welded into an integrated structure.

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