A flexible circuit board film laminating device

Abstract

The present invention belongs to the field of flexible circuit board processing, and specifically relates to a flexible circuit board film laminating device, which includes a front box and a rear box. A gate is installed between the front box and the rear box. A sealing door is installed at the front end of the front box. A movable table capable of translating is provided in the front box and the rear box. Above the movable table, there is a tray for placing the flexible circuit board. A wound isolation film is provided in the rear box. Both ends of the isolation film are straightened through a loading box. A protective film for fitting the flexible circuit board is pasted on the bottom surface of the isolation film. Above the isolation film, there are two pressing arms capable of moving. Multiple spray heads capable of spraying are provided on the surface of the pressing arms. An exposure module is installed on the inner top of the front box. Through this setting, the functions of film laminating and post-treatment after film laminating of the flexible circuit board are realized, and the whole process is automatically controlled without human assistance.

Description

Technical Field

[0001] The present invention belongs to the field of flexible circuit board processing, and specifically relates to a flexible circuit board film laminating device. Background Art

[0002] A flexible circuit board is a highly reliable flexible printed circuit board made of polyimide or polyester film as the base material. It has the characteristics of high wiring density, light weight, thin thickness, and good bendability.

[0003] The circuit board film laminating process is an important process in electronic circuit board manufacturing. Its main purpose is to cover a thin film material on the surface of the printed circuit board to protect the circuit board from environmental factors and physical damage. The film laminating process usually includes material preparation, pattern making, lamination, forming, and testing.

[0004] The traditional flexible circuit board film laminating process requires multiple equipment transfers. For example, the protective film needs to be first attached to the flexible circuit board, then transferred to an exposure device for exposure operation, and then moved to other devices such as a developing device. The overall transfer process generally requires manual assistance, which is not only prone to errors but also reduces work efficiency.

[0005] Therefore, the present invention provides a flexible circuit board film laminating device. Summary of the Invention

[0006] In order to make up for the deficiencies of the prior art and solve at least one of the technical problems proposed in the background art.

[0007] The technical solution adopted by the present invention to solve its technical problems is as follows: A flexible circuit board film laminating device of the present invention includes a front box and a rear box. A gate is installed between the front box and the rear box. A sealing door is installed at the front end of the front box. A movable table capable of translating is provided in the front box and the rear box. A tray for placing the flexible circuit board is provided above the movable table. A wound isolation film is provided in the rear box. The two ends of the isolation film are straightened through a loading box. A protective film for attaching to the flexible circuit board is pasted on the bottom surface of the isolation film. Two movable pressing arms are provided above the isolation film. A plurality of spray heads capable of spraying are provided on the surface of the pressing arms. An exposure module is installed on the inner top of the front box.

[0008] Place the flexible circuit board to be laminated on the tray, and place the tray on the moving platform. The moving platform can move to the front end of the front chamber, and then move inward to the middle of the rear chamber. Close the sealing door. The two ends of the isolation film are straightened by the loading box and located above the tray. Use two movable pressing arms to press the isolation film from top to bottom. The protective film on the bottom surface of the isolation film will be attached to the flexible circuit board. Multiple protective films are relatively independently attached to the isolation film. When the bottom of the protective film is attached to the flexible circuit board, then squeeze the isolation film through the pressing arms. The squeezing method is that the two pressing arms squeeze from the center and then separate to both sides. When the pressing arms leave, the isolation film will remain on the flexible circuit board and the tray. The areas of the isolation film and the protective film need to be larger than the area of the flexible circuit board to ensure full coverage of the protective film. When the lamination is completed, the moving platform moves to the front chamber, and use the exposure module to expose the protective film on the surface of the flexible circuit board. The protective film can use a film material. The exposure module can irradiate light on the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the unirradiated part remains unchanged, while the irradiated part will change. The circuit positions on the surface of the circuit board have been recorded in the exposure module, and the irradiated parts are all the parts that need to be protected. Then the moving platform drives the entire tray to move into the rear chamber. While closing the gate, adjust the positions of the two pressing arms, and spray the developing solution downward through multiple nozzles. The developing solution will dissolve the unexposed part of the film protective film, while the exposed part remains. A clear circuit pattern is formed for the external connection lines of the flexible circuit board. During the spraying process, the two pressing arms can move reciprocally to ensure uniform spraying. Before spraying, the isolation film needs to be transferred. After spraying and developing, in order to ensure subsequent other processing procedures, the nozzles are replaced with clean water for spraying to wash the developing solution clean. To ensure thorough cleaning, it is necessary to repeat the cleaning multiple times. Finally, open the sealing door and the gate to take out the tray and the flexible circuit board. Through this setting, the functions of laminating the flexible circuit board and post-treatment after lamination are realized, and the whole process is automatically controlled without human assistance; the pressing arms not only have the functions of pressing and flattening the film and developing and spraying, but also can be used for subsequent cleaning of the developing solution. Moreover, when the circuit board needs to be laminated with a liquid material, the laminating liquid can be directly sprayed onto the flexible circuit board through the nozzles. The spraying thickness can be determined according to the spraying time. After spraying, then carry out exposure and other processing procedures. The movable function of the pressing arms can ensure the comprehensiveness of spraying during the spraying process; at the same time, the operations of exposure and development are separated by the gate to prevent the liquid in the rear chamber from affecting the front chamber, ensuring the normal operation process of multiple functions and effectively improving work efficiency.

[0009] Preferably, two symmetrically arranged guide rails are installed in the front box and the rear box. The moving table is slidably clamped on the guide rails. An electric wheel drivingly connected to the surface of the guide rail is installed in the moving table. By driving the electric wheel in the moving table, the moving table can be controlled to translate on the surface of the guide rail. An anti-disengagement structure is provided at the end of the guide rail, allowing the moving table to extend out of the front box for convenient placement of the tray, but not to disengage from the guide rail.

[0010] Preferably, the top surface of the tray is concave, and a plurality of through holes penetrating to the bottom are opened on the top surface of the tray. The moving table is arranged in a rectangular frame shape. A vacuum pump is installed at the inner bottom of the rear box. Since the flexible circuit board may be bent, when the flexible circuit board is moved into the rear box by the tray, the vacuum pump is started to generate suction. The suction acts on the surface of the flexible circuit board through the through holes, so that the flexible circuit board fits on the tray, ensuring that the flexible circuit board is flattened on the tray during the subsequent film pasting process. At the same time, when spraying the developing solution, clear water, and coating solution, the vacuum pump will also generate negative pressure, thereby guiding the water mist to move downward, reducing the movement of the liquid in other directions to cause pollution. At the same time, the excess liquid will also be absorbed by the vacuum pump and discharged outward. The excess liquid will also be absorbed by the vacuum pump through the through holes, ensuring the normal internal environment of the rear box.

[0011] Preferably, a second driving motor for driving the pressing arm to rotate is installed at one end of the pressing arm. A support frame is installed above the second driving motor and the pressing arm. A screw rod drivingly connected to the support frame is installed in the middle of the support frame. A sliding rod slidably connected to the support frame is also installed in the middle of the support frame. Both the screw rod and the sliding rod are perpendicular to the support frame. A first driving motor for driving the screw rod to rotate is installed at one end of the screw rod. By driving the pressing arm to rotate through the second driving motor, the orientation of the nozzle can be adjusted, thus ensuring the comprehensiveness during the spraying process. By driving the screw rod to rotate through the first driving motor, the support frame is driven to move horizontally, thereby driving the pressing arm to move horizontally.

[0012] Preferably, the two screw rods are symmetrically and parallelly arranged, the two support frames are also symmetrically and parallelly arranged, and the two support frames share a sliding rod. A connecting beam is fixedly connected to the outside of the first driving motor. The end of the screw rod is rotatably connected to the connecting beam. Two vertically arranged hydraulic rods are fixedly connected to the top of the connecting beam. The rotation of one screw rod can only drive one support frame to move, and this screw rod passes through the other support frame without being drivingly connected to it. The lifting of the support frame is controlled by the hydraulic rod, thereby driving the lifting of the pressing arm. Through this setting, the function of driving the pressing arm to move freely in the rear box is realized, ensuring the smooth progress of the spraying and film pressing processes.

[0013] Preferably, the loading box is slidably connected to the rear box. The rear end of the rear box is an openable structure, and the rear end of the loading box is also an openable structure. The two loading boxes are arranged oppositely. A rotatable restraint rod is installed inside the loading box, and a positioning roller for winding the isolation film is sleeved outside the restraint rod. The loading box can slide outwards from the rear side of the rear box, and at the same time, the loading box can be opened to replace the positioning roller inside. The positioning roller can be fixed on the restraint rod. One end of the restraint rod is connected to a servo motor to control the rotation of the restraint rod and the positioning roller to ensure the straightening and movement process of the isolation film. During the film pressing process, the straightened isolation film is above the tray. As the pressing arm drops from the center, the central part of the isolation film also sinks. Then the pressing arm separates to both sides, allowing the isolation film to completely fit above the tray. After that, the pressing arm repeats the film pressing multiple times. With the negative pressure suction at the bottom, the protective film remains on the tray and the flexible circuit board. There are hollow areas on the surface of the isolation film to weaken the adsorption of the negative pressure. As the pressing arm leaves, the protective film remains on the tray and the flexible circuit board. The area of the protective film is larger than that of the flexible circuit board, and subsequent cutting work is required. The protective film on the isolation film is pasted in sections, and there is a section of hollow area in the middle on the isolation film every time a protective film thickness passes. After the film pasting is completed, by rotating the positioning roller, the hollow position of the isolation film is moved below the pressing arm, and the isolation film will not block the pressing arm above. In this way, spraying and cleaning work can be carried out without taking out the loading box.

[0014] Preferably, a material groove for passing the isolation film is provided on one side of the loading box. A sliding roller is rotatably connected to the top of the material groove. One end of the positioning roller is fixedly connected with multiple insertion rods. The material groove is used to pass the isolation film, and at the same time, the sliding roller is used to reduce the damage caused by friction. The positioning roller is inserted from the rear end of the loading box. The length of the insertion rod, and a plug-in disk adapted to the insertion rod is installed at the front end of the positioning roller, which can be used to fix the positioning roller.

[0015] Preferably, a plurality of supply valves are fixedly connected to the top of the rear box. A spiral transmission pipe is fixedly connected between the supply valve and the pressing arm. The transmission pipe is located between the sliding rod and the screw rod. The supply valve is used to connect to the external water source to inject various required raw materials through the transmission pipe and the pressing arm and finally into the spray head for spraying. The spiral transmission pipe can shrink by itself and will not affect the forward movement of the support frame.

[0016] Preferably, the two pressing arms are symmetrically arranged. The opposite sides of the two pressing arms are arranged vertically, and the bottom of the pressing arm is arranged with a smooth transition. The structural setting of the pressing arm allows the two pressing arms to fit together, so that the isolation film can be pressed outward from the center line. At the same time, when pressing to the outermost side, the pressing arm can also turn outward, further increasing the area that can be pressed and ensuring the smooth progress of the film pressing process.

[0017] Preferably, the multiple nozzles on the surface of the pressing arm are divided into two groups, and the two groups of nozzles are distributed on the two surfaces of the pressing arm near the bottom. The multiple nozzles are arranged linearly and equidistantly. With the setting of the two groups of nozzles, when the pressing arm is used for a flexible circuit board with a large spraying area, they can be separated from each other and rotated so that the two nozzles are inclined downward, and in cooperation with the translation of the pressing arm, the comprehensiveness of spraying can be ensured in this way.

[0018] The beneficial effects of the present invention are as follows:

[0019] 1. The flexible circuit board laminating device described in the present invention realizes the functions of laminating and post-laminating treatment of the flexible circuit board, and is fully automatically controlled without manual assistance; the pressing arm not only has the functions of film pressing and leveling and developing spraying, but also can be used as the subsequent developing solution cleaning function. Moreover, when the circuit board needs to be laminated with a liquid material, the laminating liquid can be directly sprayed onto the flexible circuit board through the nozzles, and the spraying thickness can be determined according to the spraying time. After the spraying is completed, exposure and other treatment processes are carried out. The movable function of the pressing arm can ensure the comprehensiveness of spraying during the spraying process; at the same time, the operations of exposure and development are separated by a gate to prevent the liquid in the rear box from affecting the front box, ensuring the normal operation process of the multi-function, and effectively improving the work efficiency.

[0020] 2. In the flexible circuit board laminating device described in the present invention, when the flexible circuit board is moved to the rear box by the tray, the vacuum pump is started to generate suction, and the suction acts on the surface of the flexible circuit board through the through holes, so that the flexible circuit board is attached to the tray, ensuring that the flexible circuit board is flattened on the tray during the subsequent film pasting process. At the same time, when spraying the developing solution, clear water and coating liquid, the vacuum pump will also generate negative pressure, thereby guiding the water mist to move downward, reducing the movement of the liquid in other directions to cause pollution, and at the same time, the excess liquid will also be absorbed by the vacuum pump and discharged outward. The excess liquid will also be absorbed by the vacuum pump through the through holes, ensuring the normal internal environment of the rear box. Description of the Drawings

[0021] The present invention will be further described below with reference to the drawings.

[0022] Figure 1 is the perspective view of the present invention;

[0023] Figure 2 is the perspective view of the rear box of the present invention;

[0024] Figure 3 is the internal structure diagram of the rear box of the present invention;

[0025] Figure 4 is the perspective view of the loading box of the present invention;

[0026] Figure 5 is the perspective view of the connecting beam of the present invention;

[0027] Figure 6 is a perspective view of the pressing arm of the present invention;

[0028] Figure 7 is a perspective view of the front box of the present invention;

[0029] Figure 8 is a perspective view of the tray and the moving table of the present invention;

[0030] In the figure: 1, front box; 2, rear box; 3, gate; 4, sealing door; 5, tray; 6, moving table; 8, supply valve; 9, hydraulic rod; 10, isolation film; 12, vacuum pump; 13, guide rail; 14, screw; 15, connecting beam; 17, loading box; 18, restraint rod; 19, positioning roller; 20, sliding rod; 21, driving motor 1; 22, driving motor 2; 23, pressing arm; 24, transmission pipe; 25, nozzle; 26, exposure module; 27, support frame. Detailed implementation manners

[0031] In order to make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with specific implementation manners.

[0032] As Figures 1 to 8 shown, a flexible circuit board film laminating device according to an embodiment of the present invention includes a front box 1 and a rear box 2. A gate 3 is installed between the front box 1 and the rear box 2. A sealing door 4 is installed at the front end of the front box 1. A moving table 6 capable of translating is provided in the front box 1 and the rear box 2. A tray 5 for placing a flexible circuit board is provided above the moving table 6. A wound isolation film 10 is provided in the rear box 2. Both ends of the isolation film 10 are straightened through a loading box 17. A protective film for attaching to the flexible circuit board is pasted on the bottom surface of the isolation film 10. Two pressing arms 23 capable of moving are provided above the isolation film 10. A plurality of nozzles 25 capable of spraying are provided on the surface of the pressing arm 23. An exposure module 26 is installed on the inner top of the front box 1;

[0033] Place the flexible circuit board to be laminated on the tray 5, and place the tray 5 on the moving stage 6. The moving stage 6 can move to the front end of the front chamber 1, and then the moving stage 6 moves inward to the middle of the rear chamber 2. Close the sealing door 4. Both ends of the isolation film 10 are straightened by the loading box 17 and located above the tray 5. Use two movable pressing arms 23 to press the isolation film 10 from top to bottom. The protective film on the bottom surface of the isolation film 10 will be attached to the flexible circuit board. Multiple protective films are relatively independently attached to the isolation film 10. When the bottom of the protective film is attached to the flexible circuit board, then squeeze the isolation film 10 through the pressing arms 23. The squeezing method is that the two pressing arms 23 squeeze from the center and then separate to both sides. When the pressing arms 23 leave, the isolation film 10 will remain on the flexible circuit board and the tray 5. The areas of the isolation film 10 and the protective film need to be larger than the area of the flexible circuit board to ensure full coverage of the protective film. When the lamination is completed, the moving stage 6 moves to the front chamber 1, and the exposure module 26 is used to expose the protective film on the surface of the flexible circuit board. The protective film can use a film material. The exposure module 26 can irradiate light on the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the unirradiated part remains unchanged, while the irradiated part will change. The circuit positions on the surface of the circuit board have been recorded in the exposure module 26, and the irradiated parts are all the parts that need to be protected. Then the moving stage 6 drives the entire tray 5 to move into the rear chamber 2. While closing the gate 3, adjust the positions of the two pressing arms 23, and spray the developing solution downward through multiple nozzles 25. The developing solution will dissolve the unexposed part of the film protective film, while the exposed part remains. A clear circuit pattern is formed for the flexible circuit board to connect external circuits. During the spraying process, the two pressing arms 23 can reciprocate to ensure uniform spraying. Before spraying, the isolation film 10 needs to be transferred. After the spraying and developing are completed, in order to ensure subsequent other processing processes, the nozzles 25 are replaced with clean water for spraying to wash the developing solution clean. In order to ensure thorough cleaning, it is necessary to repeat the cleaning multiple times. Finally, open the sealing door 4 and the gate 3 to take out the tray 5 and the flexible circuit board. Through this setting, the functions of laminating the flexible circuit board and post-treatment after lamination are realized, and the whole process is automatically controlled without human assistance; the pressing arms 23 not only have the functions of pressing and flattening the film and developing and spraying, but also can be used for subsequent cleaning of the developing solution. Moreover, when the circuit board needs to be laminated with a liquid material, the laminating liquid can be directly sprayed onto the flexible circuit board through the nozzles 25, and the spraying thickness can be determined according to the spraying time. After the spraying is completed, then carry out exposure and other processing processes. The movable function of the pressing arms 23 can ensure the comprehensiveness of spraying during the spraying process; at the same time, the operations of exposure and development are separated by the gate 3 to prevent the liquid in the rear chamber 2 from affecting the front chamber 1, ensuring the normal operation process of multiple functions and effectively improving the work efficiency.

[0034] Two symmetrically arranged guide rails 13 are installed in the front box 1 and the rear box 2. The moving platform 6 is slidably clamped on the guide rails 13, and an electric wheel drivingly connected to the surface of the guide rails 13 is installed in the moving platform 6.

[0035] During operation, driven by the electric wheel in the moving platform 6, the moving platform 6 can be controlled to translate on the surface of the guide rails 13. The ends of the guide rails 13 are provided with anti-disengagement structures, allowing the moving platform 6 to extend out of the front box 1 for the placement of the tray 5 without detaching from the guide rails 13.

[0036] The top surface of the tray 5 is concave, and a plurality of through holes penetrating to the bottom are opened on the top surface of the tray 5. The moving platform 6 is arranged in a rectangular frame shape, and a vacuum pump 12 is installed at the inner bottom of the rear box 2.

[0037] During operation, since the flexible circuit board may be bent, when the flexible circuit board is moved to the rear box 2 by the tray 5, the vacuum pump 12 is started to generate suction. The suction acts on the surface of the flexible circuit board through the through holes, so that the flexible circuit board fits on the tray 5, ensuring that the flexible circuit board is flattened on the tray 5 during the subsequent film pasting process. At the same time, when spraying the developer, clear water, and coating liquid, the vacuum pump 12 also generates negative pressure, thereby guiding the water mist to move downward, reducing the movement of the liquid in other directions and causing pollution. At the same time, the excess liquid will also be absorbed by the vacuum pump 12 and discharged outward. The excess liquid will also pass through the through holes and be absorbed by the vacuum pump 12, ensuring the normal internal environment of the rear box 2.

[0038] One end of the pressing arm 23 is installed with a second driving motor 22 for driving the pressing arm 23 to rotate. Above the second driving motor 22 and the pressing arm 23, a support frame 27 is installed. In the middle of the support frame 27, a screw rod 14 drivingly connected to the support frame 27 is installed. In the middle of the support frame 27, a sliding rod 20 slidably connected to the support frame 27 is also installed. Both the screw rod 14 and the sliding rod 20 are perpendicular to the support frame 27. One end of the screw rod 14 is installed with a first driving motor 21 for driving the screw rod 14 to rotate.

[0039] During operation, the second driving motor 22 drives the pressing arm 23 to rotate, which can adjust the orientation of the nozzle 25, thereby ensuring the comprehensiveness during the spraying process. The first driving motor 21 drives the screw rod 14 to rotate, driving the support frame 27 to move horizontally, thereby driving the pressing arm 23 to move horizontally.

[0040] The two screw rods 14 are symmetrically and parallelly arranged, the two support frames 27 are also symmetrically and parallelly arranged, the two support frames 27 share a sliding rod 20. The outside of the first driving motor 21 is fixedly connected with a connecting beam 15. The end of the screw rod 14 is rotatably connected to the connecting beam 15. Two vertically arranged hydraulic rods 9 are fixedly connected to the top of the connecting beam 15.

[0041] During operation, the rotation of one screw rod 14 can only drive one support frame 27 to move. The screw rod 14 passes through the other support frame 27 without being in transmission connection with it. The lifting of the support frame 27 is controlled by the hydraulic rod 9, thereby driving the lifting of the pressing arm 23. Through this setting, the function of driving the pressing arm 23 to move freely in the rear box 2 is realized, ensuring the smooth progress of the spraying and film pressing processes.

[0042] The loading box 17 is slidably connected to the rear box 2. The rear end of the rear box 2 is an openable structure, and the rear end of the loading box 17 is also an openable structure. The two loading boxes 17 are arranged oppositely. A rotatable restraint rod 18 is installed inside the loading box 17, and a positioning roller 19 for winding the isolation film 10 is sleeved outside the restraint rod 18;

[0043] During operation, the loading box 17 can slide out from the rear side of the rear box 2. At the same time, the loading box 17 is opened to replace the positioning roller 19 inside. The positioning roller 19 can be fixed on the restraint rod 18. One end of the restraint rod 18 is connected to a servo motor, thereby controlling the rotation of the restraint rod 18 and the positioning roller 19 to ensure the straightening and movement process of the isolation film 10; during the film pressing process, the straightened isolation film 10 is located above the tray 5. As the pressing arm 23 drops from the center, the central part of the isolation film 10 also sinks. Then the pressing arm 23 separates to both sides, allowing the isolation film 10 to completely adhere above the tray 5. Then the pressing arm 23 repeats the film pressing multiple times. With the negative pressure suction at the bottom, the protective film remains on the tray 5 and the flexible circuit board. There are voids on the surface of the isolation film 10 to weaken the adsorption of the negative pressure. As the pressing arm 23 leaves, the protective film remains on the tray 5 and the flexible circuit board. The area of the protective film is larger than that of the flexible circuit board, and subsequent cutting work is required; the protective film on the isolation film 10 is pasted in segments, and there is a region with a central void on the isolation film 10 every time a protective film thickness passes. After the film pasting is completed, by rotating the positioning roller 19, the void position of the isolation film 10 is moved below the pressing arm 23, and the isolation film 10 will not block the upper pressing arm 23, so that the spraying and cleaning work can be carried out without removing the loading box 17.

[0044] A material groove for passing the isolation film 10 is provided on one side of the loading box 17. A sliding roller is rotatably connected to the top of the material groove, and a plurality of insertion rods are fixedly connected to one end of the positioning roller 19;

[0045] During operation, the material groove is used to pass the isolation film 10, and at the same time, the sliding roller is used to reduce the damage caused by friction. The positioning roller 19 is inserted from the rear end of the loading box 17. The length of the insertion rod, and a plugging disc adapted to the insertion rod is installed at the front end of the positioning roller 19, which can be used to fix the positioning roller 19.

[0046] A plurality of supply valves 8 are fixedly connected to the top of the rear box 2. A spiral transfer pipe 24 is fixedly connected between the supply valve 8 and the pressing arm 23. The transfer pipe 24 is located between the slide rod 20 and the screw rod 14.

[0047] During operation, the supply valve 8 is used to connect to an external water source, and various required raw materials are injected into the spray head 25 through the transfer pipe 24 and the pressing arm 23 for spraying. The spiral transfer pipe 24 can shrink by itself and will not affect the advancement of the support frame 27.

[0048] The two pressing arms 23 are symmetrically arranged. The opposite surfaces of the two pressing arms 23 are vertically arranged, and the bottom of the pressing arm 23 is provided with a smooth transition.

[0049] During operation, due to the structural arrangement of the pressing arm 23, the two pressing arms 23 can fit together, so that the isolation film 10 can be pressed outward from the center line. At the same time, when pressing to the outermost side, the pressing arm 23 can also flip outward, further increasing the pressing area and ensuring the smooth progress of the film pressing process.

[0050] The multiple spray heads 25 on the surface of the pressing arm 23 are divided into two groups. The two groups of spray heads 25 are distributed on the two surfaces of the pressing arm 23 near the bottom, and the multiple spray heads 25 are arranged linearly and equidistantly.

[0051] During operation, due to the setting of the two groups of spray heads 25, when the pressing arm 23 sprays a flexible circuit board with a large spraying area, the two can be separated from each other, and rotated until the two spray heads 25 are inclined downward, and cooperate with the translation of the pressing arm 23 to ensure the comprehensiveness of spraying.

[0052] During operation, the flexible circuit board to be laminated is placed on the tray 5, and the tray 5 is placed on the moving platform 6. The moving platform 6 can move to the front end of the front chamber 1, and then the moving platform 6 moves inward to the middle of the rear chamber 2. The sealing door 4 is closed. The two ends of the isolation film 10 are straightened by the loading box 17 and located above the tray 5. Two movable pressing arms 23 press the isolation film 10 from top to bottom. The protective film on the bottom surface of the isolation film 10 will be attached to the flexible circuit board. Multiple protective films are relatively independently attached to the isolation film 10. When the bottom of the protective film is attached to the flexible circuit board, then the isolation film 10 is squeezed by the pressing arms 23. The squeezing method is that the two pressing arms 23 squeeze from the center and then separate to both sides. When the pressing arms 23 leave, the isolation film 10 will remain on the flexible circuit board and the tray 5. The areas of the isolation film 10 and the protective film need to be larger than the area of the flexible circuit board to ensure full coverage of the protective film. When the lamination is completed, the moving platform 6 moves to the front chamber 1, and the exposure module 26 is used to expose the protective film on the surface of the flexible circuit board. The protective film can use a film material. The exposure module 26 can irradiate light on the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the unirradiated part remains unchanged, while the irradiated part will change. The circuit positions on the surface of the circuit board have been recorded in the exposure module 26, and the irradiated parts are all the parts that need to be protected. Then the moving platform 6 drives the entire tray 5 to move into the rear chamber 2. While closing the gate 3, the positions of the two pressing arms 23 are adjusted, and the developing solution is sprayed downward through multiple nozzles 25. The developing solution will dissolve the unexposed part of the film protective film, while the exposed part remains, forming a clear circuit pattern for the flexible circuit board to connect external circuits. During the spraying process, the two pressing arms 23 can reciprocate to ensure uniform spraying. Before spraying, the isolation film 10 needs to be transferred. After spraying and developing, in order to ensure subsequent other processing procedures, the nozzles 25 are replaced with clean water for spraying to wash the developing solution clean. To ensure thorough cleaning, it needs to be repeated multiple times. Finally, the sealing door 4 and the gate 3 are opened to take out the tray 5 and the flexible circuit board. Through this setting, the functions of laminating the flexible circuit board and post-treatment after lamination are realized, and the whole process is automatically controlled without manual assistance; the pressing arms 23 not only have the functions of pressing and flattening the film and developing and spraying, but also can be used for subsequent cleaning of the developing solution. Moreover, when the circuit board needs to be laminated with a liquid material, the laminating liquid can be directly sprayed onto the flexible circuit board through the nozzles 25, and the spraying thickness can be determined according to the spraying time. After spraying, the exposure and other processing procedures are carried out. The movable function of the pressing arms 23 can ensure the comprehensiveness of spraying during the spraying process; at the same time, the operations of exposure and development are separated by the gate 3 to prevent the liquid in the rear chamber 2 from affecting the front chamber 1, ensuring the normal operation process of multiple functions and effectively improving the work efficiency;

[0053] The movable platform 6 can be controlled to move horizontally on the surface of the guide rail 13 by driving the electric wheel in the movable platform 6. The end of the guide rail 13 is provided with a simulated escape structure, so that the movable platform 6 can extend out of the front box 1 to facilitate the placement of the tray 5, but will not leave the guide rail 13;

[0054] Since the flexible circuit board may bend, when the flexible circuit board is moved by the tray 5 into the rear box 2, the vacuum pump 12 is started to generate suction, and the suction passes through the through hole to act on the surface of the flexible circuit board, so that the flexible circuit board is attached to the tray 5, ensuring that the flexible circuit board is laid flat on the tray 5 during the subsequent film laminating process. At the same time, when spraying the developer, clean water and coating liquid, the vacuum pump 12 will also generate negative pressure, thereby guiding the water mist to move downward and reducing the pollution caused by the liquid moving in other directions. At the same time, the excess liquid will also be absorbed by the vacuum pump 12 and discharged outward, and the excess liquid will also be absorbed by the vacuum pump 12 through the through hole, ensuring the normal internal environment of the rear box 2;

[0055] By driving the second motor 22 to drive the pressing arm 23 to rotate, the direction of the nozzle 25 can be adjusted to ensure the comprehensiveness of the spraying process. By driving the first motor 21 to drive the screw 14 to rotate, the support frame 27 is driven to move horizontally, thereby driving the pressing arm 23 to move horizontally;

[0056] The rotation of one screw 14 can only drive one support frame 27 to move. The screw 14 passes through another support frame 27 without being connected to it. The lifting and lowering of the support frame 27 is controlled by the hydraulic rod 9, thereby driving the lifting and lowering of the pressing arm 23. Through this arrangement, the function of driving the pressing arm 23 to move freely in the rear box 2 is realized, ensuring the smooth progress of the spraying and laminating process.

[0057] The loading box 17 can slide outwards from the rear side of the rear box 2. Meanwhile, the loading box 17 is opened to replace the positioning roller 19 inside. The positioning roller 19 can be fixed on the binding rod 18. One end of the binding rod 18 is connected with a servo motor, so as to control the rotation of the binding rod 18 and the positioning roller 19, ensuring the straightening and movement process of the isolation film 10. During the film pressing process, the straightened isolation film 10 is above the tray 5. As the pressing arm 23 drops from the center, the central part of the isolation film 10 also sinks. Then the pressing arm 23 separates towards both sides, making the isolation film 10 fully adhere above the tray 5. After that, the pressing arm 23 repeats the film pressing process multiple times. With the negative pressure suction at the bottom, the protective film remains on the tray 5 and the flexible circuit board. There are hollow parts on the surface of the isolation film 10 to weaken the adsorption of the negative pressure. As the pressing arm 23 leaves, the protective film remains on the tray 5 and the flexible circuit board. The area of the protective film is larger than that of the flexible circuit board, and subsequent cutting work is required. The protective film on the isolation film 10 is pasted in sections, and there is a section of the area with a hollow middle part on the isolation film 10 every time the thickness of a protective film passes. After the film pasting is completed, by rotating the positioning roller 19, the hollow position of the isolation film 10 is moved below the pressing arm 23, and the isolation film 10 will not block the upper pressing arm 23. In this way, the spraying and cleaning work can be carried out without taking out the loading box 17.

[0058] The material trough is used to pass through the isolation film 10. Meanwhile, the sliding roller is used to reduce the damage caused by friction. The positioning roller 19 is inserted from the rear end of the loading box 17. The length of the inserting rod, and a plug tray adapted to the inserting rod is installed at the front end of the positioning roller 19, which can be used to fix the positioning roller 19.

[0059] The supply valve 8 is used to connect to the external water source, and is used to inject various required raw materials through the transmission pipe 24 and the pressing arm 23, and finally into the spray head 25 for spraying. The spiral transmission pipe 24 can shrink by itself and will not affect the forward movement of the support frame 27.

[0060] Due to the structural setting of the pressing arm 23, the two pressing arms 23 can fit together, so that the isolation film 10 can be pressed outwards from the center line. Meanwhile, when pressing to the outermost side, the pressing arm 23 can also turn outwards, further increasing the area that can be pressed and ensuring the smooth progress of the film pressing process.

[0061] With the setting of two groups of spray heads 25, when the pressing arm 23 sprays a flexible circuit board with a larger spraying area, the two can separate from each other and rotate until the two spray heads 25 are inclined downwards. Combined with the translation of the pressing arm 23, the comprehensiveness of spraying is ensured.

[0062] The basic principles, main features and advantages of the present invention have been shown and described above. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and what is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of the present invention claimed is defined by the appended claims and their equivalents.

Claims

1. A flexible circuit board laminating device, characterized in that: The invention comprises a front box (1) and a rear box (2), wherein a gate (3) is installed between the front box (1) and the rear box (2), a sealing door (4) is installed at the front end of the front box (1), a movable platform (6) capable of translation is arranged in the front box (1) and the rear box (2), a tray (5) for placing a flexible circuit board is arranged above the movable platform (6), a rolled-up isolation film (10) is arranged in the rear box (2), both ends of the isolation film (10) are straightened by a filling box (17), a protective film for bonding the flexible circuit board is adhered to the bottom surface of the isolation film (10), two movable pressing arms (23) are arranged above the isolation film (10), a plurality of spray heads (25) capable of spraying are provided on the surface of the pressing arms (23), and an exposure module (26) is installed on the inner top of the front box (1); Two symmetrically arranged guide rails (13) are installed in the front box (1) and the rear box (2); the moving platform (6) is slidably engaged with the guide rails (13); and the moving platform (6) is equipped with electric wheels drivingly connected to the surface of the guide rails (13); The top surface of the tray (5) is concave, and a plurality of through holes extending from the top surface of the tray (5) to the bottom are provided. The movable platform (6) is arranged in a rectangular frame shape, and a vacuum pump (12) is installed at the inner bottom of the rear box (2). A second drive motor (22) for driving the pressing arm (23) to rotate is mounted at one end of the pressing arm (23); a support frame (27) is mounted above the second drive motor (22) and the pressing arm (23); a screw rod (14) drivingly connected to the support frame (27) is mounted in the middle of the support frame (27); a slide rod (20) slidably connected to the support frame (27) is also mounted in the middle of the support frame (27); the screw rod (14) and the slide rod (20) are both arranged vertically with respect to the support frame (27); and a first drive motor (21) for driving the screw rod (14) to rotate is mounted at one end of the screw rod (14).

2. A flexible circuit board laminating device according to claim 1, characterized in that: The two screw rods (14) are symmetrically arranged in parallel, the two support frames (27) are also symmetrically arranged in parallel, the two support frames (27) share a sliding rod (20), a connecting beam (15) is fixedly connected to the outer side of the driving motor 1 (21), the end of the screw rod (14) is rotatably connected to the connecting beam (15), and the top of the connecting beam (15) is fixedly connected to two vertically arranged hydraulic rods (9).

3. A flexible circuit board laminating device according to claim 2, characterized in that: The filling box (17) is slidably connected to the rear box (2); the rear end of the rear box (2) is an openable structure; the rear end of the filling box (17) is also an openable structure; the two filling boxes (17) are arranged opposite to each other; a rotatable restraining rod (18) is installed inside the filling box (17); and a positioning roller (19) for winding the isolation film (10) is sleeved on the outer side of the restraining rod (18).

4. A flexible circuit board laminating device according to claim 3, characterized in that: A material trough for passing the isolation membrane (10) is provided on one side of the filling box (17), a sliding roller is rotatably connected to the top of the material trough, and a plurality of plug-in rods are fixedly connected to one end of the positioning roller (19).

5. The flexible circuit board laminating device according to claim 4, characterized in that: A plurality of supply valves (8) are fixedly connected to the top of the rear box (2), a spiral transmission pipe (24) is fixedly connected between the supply valve (8) and the pressing arm (23), and the transmission pipe (24) is located between the sliding rod (20) and the screw rod (14).

6. The flexible circuit board laminating device according to claim 5, characterized in that: The two pressing arms (23) are symmetrically arranged, the opposite sides of the two pressing arms (23) are arranged vertically, and the bottoms of the pressing arms (23) are arranged in a smooth transition.

7. The flexible circuit board laminating device according to claim 6, characterized in that: The multiple nozzles (25) on the surface of the pressing arm (23) are divided into two groups. The two groups of nozzles (25) are distributed on two surfaces near the bottom of the pressing arm (23). The multiple nozzles (25) are arranged linearly and equidistantly.

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