Film coating equipment for flexible circuit board

Abstract

The invention belongs to the field of flexible circuit board processing, and particularly relates to flexible circuit board film covering equipment which comprises 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, and a moving table capable of horizontally moving is arranged in the front box and the rear box. A tray used for placing a flexible circuit board is arranged above the moving table, a rolled isolation film is arranged in the rear box, the two ends of the isolation film are straightened through a filling box, and a protective film used for being attached to the flexible circuit board is pasted to the bottom face of the isolation film. Two pressing arms capable of moving are arranged above the isolation film, a plurality of spraying heads capable of spraying are arranged on the surfaces of the pressing arms, and an exposure module is installed at the top of the inner side of the front box, through the arrangement, the functions of film covering and film covering post-processing of the flexible circuit board are achieved, full-process automatic control is achieved, the production efficiency is improved, and the production cost is reduced. And human assistance is not needed.

Description

Technical Field

[0001] The invention belongs to the field of flexible circuit board processing, in particular to a flexible circuit board laminating device. Background Art

[0002] Flexible circuit board is a kind of 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] Circuit board lamination is an important process in the manufacture of electronic circuit boards. Its main purpose is to cover the surface of the printed circuit board with a layer of thin film material to protect the circuit board from environmental factors and physical damage. The lamination process usually includes material preparation, graphic production, lamination, molding and testing.

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

[0005] To this end, the present invention provides a flexible circuit board laminating device. Summary of the invention

[0006] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0007] The technical solution adopted by the present invention to solve its technical problem is: a flexible circuit board laminating device described in the present invention comprises 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 translation is arranged in the front box and the rear box, a tray for placing the flexible circuit board is arranged above the movable table, a rolled-up isolation film is arranged in the rear box, both ends of the isolation film are straightened by a filling box, a protective film for laminating the flexible circuit board is pasted on the bottom surface of the isolation film, two movable pressing arms are arranged above the isolation film, a plurality of spray heads capable of spraying are opened on the surface of the pressing arms, and an exposure module is installed on the inner top of the front box; Place the flexible circuit board that needs to be coated on the pallet, and place the pallet on the moving table. The moving table can be moved to the front end of the front box, and then the moving table moves inward to the middle of the rear box, close the sealing door, and the two ends of the isolation film are straightened by the filling box and located above the pallet. Use two movable pressing arms to press the isolation film from top to bottom, and the protective film on the bottom 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, the isolation film is squeezed by the pressing arm. The extrusion method is that the two pressing arms squeeze from the center and then separate to both sides. When the pressing arm leaves, the isolation film will remain on the flexible circuit board and the pallet. , the area of ​​the isolation film and the protective film needs to be larger than the area of ​​the flexible circuit board to ensure full coverage of the protective film. When the bonding is completed, the mobile platform moves to the front box and uses the exposure module to expose the protective film on the surface of the flexible circuit board. The protective film can use film material. The exposure module can irradiate light to the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the part not irradiated by the light remains unchanged, while the part irradiated by the light will change. The circuit position on the surface of the circuit board has been recorded in the exposure module, and the irradiated parts are all parts that need to be protected. After that, the mobile platform drives the entire tray to move to the rear box, closes the gate and adjusts the two The developer will dissolve the unexposed film protective film and retain the exposed part to form a clear circuit pattern for the flexible circuit board to connect to the outside. During the spraying process, the two pressing arms can reciprocate to ensure uniform spraying. The isolation film needs to be transferred before spraying. After the spraying and developing is completed, in order to ensure the subsequent other processing processes, the nozzle is replaced with clean water for spraying to clean the developer. In order to ensure that the cleaning is clean, it is necessary to repeat the cleaning several times. Finally, the sealing door and the gate are opened to take out the tray and the flexible circuit board. Through this setting, the coating of the flexible circuit board is realized. The lamination arm has the functions of lamination and post-lamination processing, and is fully automated and controlled without human assistance; the pressing arm not only has the functions of lamination smoothing and developing spraying, but can also be used for subsequent developer cleaning. Moreover, when the circuit board needs to be laminated with liquid materials, the laminating liquid can be directly sprayed toward the flexible circuit board through the nozzle. The spraying thickness can be determined according to the spraying time. When the spraying is completed, exposure and other processing processes can be carried out. The movable function of the pressing arm can ensure the comprehensiveness of the spraying during the spraying process; at the same time, the exposure and developing operations are separated by the gate, so that the liquid in the rear box does not affect the front box, which ensures the normal operation of the multi-function process and effectively improves the work efficiency.

[0008] Preferably, two symmetrically arranged guide rails are installed in the front box and the rear box, and the mobile platform is slidably connected to the guide rails. The mobile platform is equipped with electric wheels that are transmission-connected to the surface of the guide rails. The mobile platform can be controlled to translate on the surface of the guide rails by driving the electric wheels in the mobile platform. The end of the guide rail is provided with a simulated escapement structure, so that the mobile platform can extend out of the front box to facilitate the placement of the tray, but will not detach from the guide rails.

[0009] Preferably, the top surface of the tray is concave, and a plurality of through holes extending to the bottom are provided on the top surface of the tray. The movable platform 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 bend, when the flexible circuit board is moved into the rear box by the tray, the vacuum pump is started to generate suction, and the suction passes through the through holes and acts on the surface of the flexible circuit board, 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 developer, clean water and coating liquid, the vacuum pump 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, excess liquid will also be absorbed by the vacuum pump and discharged outward, and excess liquid will also be absorbed by the vacuum pump through the through holes, ensuring the normal internal environment of the rear box.

[0010] Preferably, a driving motor 2 for driving the pressing arm to rotate is installed at one end of the pressing arm, a support frame is installed above the driving motor 2 and the pressing arm, a screw rod that is transmission-connected to the support frame is installed in the middle of the support frame, and a sliding rod that is slidably connected to the support frame is also installed in the middle of the support frame, the screw and the sliding rod are both vertically arranged to the support frame, and a driving motor 1 for driving the screw to rotate is installed at one end of the screw. The pressing arm is driven to rotate by driving motor 2, and the direction of the nozzle can be adjusted, thereby ensuring the comprehensiveness of the spraying process, and the screw is driven to rotate by driving motor 1, which drives the support frame to move horizontally, thereby driving the pressing arm to move horizontally.

[0011] Preferably, the two screws are symmetrically arranged in parallel, and the two support frames are also symmetrically arranged in parallel, and the two support frames share a sliding rod. A connecting beam is fixedly connected to the outer side of the driving motor, and the end of the screw is rotatably connected to the connecting beam. The top of the connecting beam is fixedly connected to two vertically arranged hydraulic rods. The rotation of one screw can only drive one support frame to move. The screw passes through the other support frame without a transmission connection therewith. The lifting and lowering of the support frame is controlled by the hydraulic rod, thereby driving the lifting and lowering of the pressing arm. Through this arrangement, the function of driving the pressing arm to move freely in the rear box is realized, thereby ensuring the smooth progress of the spraying and film pressing process.

[0012] Preferably, the filling box is slidably connected to the rear box, the rear end of the rear box is an openable structure, the rear end of the filling box is also an openable structure, the two filling boxes are arranged opposite to each other, a rotatable restraining rod is installed inside the filling box, and a positioning roller for winding the isolation film is sleeved on the outer side of the restraining rod, the filling box can slide outward from the rear side of the rear box, and at the same time, the filling box is opened to replace the internal positioning roller, the positioning roller can be fixed on the restraining rod, and one end of the restraining rod is connected to a servo motor to control the restraining rod and the positioning roller to rotate, thereby ensuring the straightening and moving process of the isolation film; during the film pressing process, the straightened isolation film is above the tray, and as the pressing arm falls from the center, the center part of the isolation film also sinks, and then the pressing arm moves to The two sides are separated to allow the isolation film to completely fit on top of the pallet, and then the pressing arm repeats the film pressing many times, and cooperates with the negative pressure suction at the bottom to keep the protective film on the pallet and the flexible circuit board. There are hollows on the surface of the isolation film to weaken the adsorption of negative pressure. As the pressing arm leaves, the protective film remains on the pallet and the flexible circuit board. The area of ​​the protective film is larger than the flexible circuit board, and subsequent cutting is required; the protective film on the isolation film is pasted in sections, and after each protective film thickness, a hollow area in the middle is opened on the isolation film. When the film is pasted, the positioning roller is rotated to move the hollow position of the isolation film to the bottom of the pressing arm, and the isolation film will not block the pressing arm above, so there is no need to take out the filling box for spraying and cleaning.

[0013] Preferably, a material trough for passing the isolation membrane is opened on one side of the filling box, and a sliding roller is rotatably connected to the top of the material trough. A plurality of plug-in rods are fixedly connected to one end of the positioning roller. The material trough is used to pass through the isolation membrane, and the sliding roller is used to reduce the damage caused by friction. The positioning roller is inserted from the rear end of the filling box, and the length of the plug-in rod is determined. The front end of the positioning roller is equipped with an insert disk adapted to the plug-in rod, which can be used to fix the positioning roller.

[0014] 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 an external water source, and is used to pass various required raw materials through the transmission pipe and the pressing arm, and finally inject them into the nozzle for spraying, and the spiral transmission pipe can shrink by itself and will not affect the advancement of the support frame.

[0015] Preferably, the two pressing arms are symmetrically arranged, the opposite sides of the two pressing arms are vertically arranged, and the bottom of the pressing arm is smoothly transitioned. The structural arrangement of the pressing arms allows the two pressing arms to fit each other, so that the isolation membrane can be pressed outward from the center line. At the same time, when pressed to the outermost side, the pressing arm can also flip outward, further increasing the compressible area and ensuring the smooth progress of the film pressing process.

[0016] Preferably, the multiple nozzles on the surface of the pressing arm are divided into two groups. The two groups of nozzles are distributed on the two surfaces near the bottom of the pressing arm. The multiple nozzles are arranged linearly and equidistantly. With the arrangement of the two groups of nozzles, the pressing arm can be separated from each other when spraying a flexible circuit board with a larger area, and rotated until the two nozzles are tilted downward, cooperating with the translation of the pressing arm, so as to ensure comprehensive spraying.

[0017] The beneficial effects of the present invention are as follows: 1. The flexible circuit board laminating equipment described in the present invention realizes the functions of laminating and post-lamination processing of flexible circuit boards, and is fully automatically controlled without human assistance; the pressing arm not only has the functions of laminating and smoothing and developing spraying, but can also be used for subsequent developer cleaning function, and when the circuit board needs to be coated with liquid material, the coating liquid can be directly sprayed toward the flexible circuit board through the nozzle, and the spraying thickness can be determined according to the spraying time. After the spraying is completed, exposure and other processing processes are carried out, and the movable function of the pressing arm can ensure the comprehensiveness of the spraying during the spraying process; at the same time, the exposure and development operations are separated by a gate, so that the liquid in the rear box does not affect the front box, thereby ensuring the normal operation of the multi-function process and effectively improving the work efficiency.

[0018] 2. The flexible circuit board laminating equipment described in the present invention, when the flexible circuit board is moved to the rear box by a pallet, the vacuum pump is started to generate suction, and the suction passes through the through holes to act on the surface of the flexible circuit board, so that the flexible circuit board is attached to the pallet, ensuring that the flexible circuit board is laid flat on the pallet during the subsequent laminating process. At the same time, when spraying the developer, clean water and coating liquid, the vacuum pump 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, excess liquid will also be absorbed by the vacuum pump and discharged outward, and excess liquid will also pass through the through holes and be absorbed by the vacuum pump, ensuring the normal internal environment of the rear box. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below in conjunction with the accompanying drawings.

[0020] Figure 1 is a stereogram of the present invention; Figure 2 is a three-dimensional diagram of the rear box of the present invention; Figure 3 It is the internal structure diagram of the rear box of the present invention; Figure 4 is a perspective view of a filling box of the present invention; Figure 5 is a three-dimensional diagram of a connecting beam of the present invention; Figure 6 is a three-dimensional diagram of the pressing arm of the present invention; Figure 7 It is a three-dimensional diagram of the front box of the present invention; Figure 8 is a three-dimensional diagram of the tray and the mobile station of the present invention; In the figure: 1. front box; 2. rear box; 3. gate; 4. sealing door; 5. pallet; 6. moving table; 8. supply valve; 9. hydraulic rod; 10. isolation membrane; 12. vacuum pump; 13. guide rail; 14. screw; 15. connecting beam; 17. filling box; 18. restraining rod; 19. positioning roller; 20. sliding rod; 21. driving motor 1; 22. driving motor 2; 23. pressing arm; 24. transmission tube; 25. nozzle; 26. exposure module; 27. support frame. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0022] like Figures 1 to 8 As shown, a flexible circuit board laminating device according to an embodiment of the present invention comprises 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 movable table 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 table 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 laminating a flexible circuit board is pasted on 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; Place the flexible circuit board to be coated on the tray 5, and place the tray 5 on the moving table 6. The moving table 6 can be moved to the front end of the front box 1, and then the moving table 6 moves inward to the middle of the rear box 2, and the sealing door 4 is closed. The two ends of the isolation film 10 are straightened by the filling box 17 and are 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 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. After the bottom of the protective film is attached to the flexible circuit board, the isolation film 10 is squeezed by the pressing arms 23. The extrusion 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 1 0 will remain on the flexible circuit board and the tray 5. The area of ​​the isolation film 10 and the protective film needs 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 movable table 6 moves to the front box 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 film material. The exposure module 26 can irradiate light to the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the part not irradiated by the light remains unchanged, while the part irradiated by the light will change. The circuit position on the surface of the circuit board has been recorded in the exposure module 26, and the irradiated parts are all parts that need to be protected. Then the movable table 6 drives the entire tray 5 to move to the rear box 2 , close the gate 3 and adjust the positions of the two pressing arms 23, spray the developer downward through multiple nozzles 25, the developer will dissolve the unexposed part of the film protective film, and the exposed part will be retained to form a clear circuit pattern for the flexible circuit board to connect the circuit to the outside. 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 is completed, in order to ensure the subsequent other processing processes, the nozzle 25 is replaced with clean water for spraying to clean the developer. In order to ensure that the cleaning is clean, it is necessary to repeat the cleaning several 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, it is realized The lamination and post-lamination processing functions of the flexible circuit board are fully automated and no human assistance is required. The pressing arm 23 not only has the lamination smoothing and developing spraying functions, but can also be used for subsequent developer cleaning. When the circuit board needs to be coated with liquid materials, the coating liquid can be directly sprayed toward the flexible circuit board through the nozzle 25. The spraying thickness can be determined according to the spraying time. When the spraying is completed, exposure and other processing processes are carried out. The movable function of the pressing arm 23 can ensure the comprehensiveness of the spraying during the spraying process. At the same time, the exposure and developing operations are separated by the gate 3, so that the liquid in the rear box 2 does not affect the front box 1, ensuring the normal operation of the multi-function process and effectively improving the work efficiency.

[0023] Two symmetrically arranged guide rails 13 are installed in the front box 1 and the rear box 2, and the moving platform 6 is slidably connected to the guide rails 13. The moving platform 6 is equipped with electric wheels that are transmission-connected to the surface of the guide rails 13; During operation, the mobile platform 6 can be controlled to translate on the surface of the guide rail 13 through the electric wheel drive in the mobile platform 6. The end of the guide rail 13 is provided with a simulated escape structure, so that the mobile platform 6 can extend out of the front box 1 to facilitate the placement of the tray 5, but will not separate from the guide rail 13.

[0024] The top surface of the tray 5 is concave, and a plurality of through holes extending to the bottom are provided 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. During operation, since the flexible circuit board may bend, the flexible circuit board is moved to the rear box 2 by the tray 5, and the vacuum pump 12 is started to generate suction. The suction passes through the through hole and acts 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 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, excess liquid will also be absorbed by the vacuum pump 12 and discharged outward, and 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.

[0025] A driving motor 22 for driving the pressing arm 23 to rotate is installed at one end of the pressing arm 23, a support frame 27 is installed above the driving motor 22 and the pressing arm 23, a screw 14 is installed in the middle of the support frame 27 and is connected to the support frame 27, a slide bar 20 is also installed in the middle of the support frame 27 and is slidably connected to the support frame 27, the screw 14 and the slide bar 20 are both arranged vertically with the support frame 27, and a driving motor 21 for driving the screw 14 to rotate is installed at one end of the screw 14; During operation, the pressing arm 23 is driven to rotate by driving motor 22, and the direction of the nozzle 25 can be adjusted to ensure the comprehensiveness of the spraying process. The screw 14 is driven to rotate by driving motor 1 21, and the support frame 27 is driven to move horizontally, thereby driving the pressing arm 23 to move horizontally.

[0026] 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, the outer side of the 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, and the top of the connecting beam 15 is fixedly connected with two vertically arranged hydraulic rods 9; During operation, the rotation of a screw rod 14 can only drive one support frame 27 to move. The screw rod 14 passes through another support frame 27 without a transmission connection therewith. 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 achieved, thereby ensuring the smooth progress of the spraying and laminating process.

[0027] The filling 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 filling box 17 is also an openable structure. The two filling boxes 17 are arranged opposite to each other, and a rotatable binding 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 binding rod 18; During operation, the filling box 17 can slide outward from the rear side of the rear box 2, and at the same time, the filling box 17 is opened to replace the internal positioning roller 19, and the positioning roller 19 can be fixed on the binding rod 18, and one end of the binding rod 18 is connected to a servo motor, so as to control the binding rod 18 and the positioning roller 19 to rotate, so as to ensure the straightening and movement of the isolation film 10; during the film pressing process, the straightened isolation film 10 is above the tray 5, and as the pressing arm 23 falls from the center, the center part of the isolation film 10 also sinks, and then the pressing arm 23 separates to both sides, so that the isolation film 10 is completely attached to the top of the tray 5, and then the pressing arm 23 repeats the film pressing many times, and cooperates with the negative pressure suction at the bottom to allow the protective film 10 to be completely attached to the top of the tray 5. The protective film remains on the tray 5 and the flexible circuit board, and there are hollows on the surface of the isolation film 10 to weaken the adsorption of 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 the flexible circuit board, and subsequent cutting is required; the protective film on the isolation film 10 is pasted in sections, and after each protective film thickness, a hollow area in the middle is opened on the isolation film 10. When the film is pasted, the positioning roller 19 is rotated to move the hollow position of the isolation film 10 to the bottom of the pressing arm 23. The isolation film 10 will not block the pressing arm 23 above, so there is no need to take out the filling box 17 for spraying and cleaning.

[0028] A material trough for passing the isolation film 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; During operation, the material trough is used to pass through the isolation membrane 10, and the sliding roller is used to reduce the damage caused by friction. The positioning roller 19 is inserted from the rear end of the filling box 17, and the length of the plug-in rod. The front end of the positioning roller 19 is equipped with a plug-in disc that matches the plug-in rod, which can be used to fix the positioning roller 19.

[0029] A plurality of supply valves 8 are fixedly connected to the top of the rear box 2, and 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 slide rod 20 and the screw rod 14; During operation, the supply valve 8 is used to connect to an external water source, and is used to pass various required raw materials through the transmission pipe 24 and the pressing arm 23, and finally injected into the nozzle 25 for spraying. The spiral transmission pipe 24 can shrink by itself and will not affect the advancement of the support frame 27.

[0030] The two pressing arms 23 are symmetrically arranged, the opposite sides of the two pressing arms 23 are vertically arranged, and the bottom of the pressing arms 23 is smoothly transitioned; During operation, the structural setting of the pressing arms 23 allows the two pressing arms 23 to fit together, so that the isolation membrane 10 can be pressed outward from the center line. At the same time, when pressed to the outermost side, the pressing arms 23 can also flip outward, further increasing the area that can be pressed and ensuring the smooth progress of the film pressing process.

[0031] 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 linearly and equidistantly arranged. During operation, the two groups of nozzles 25 are set up, and the pressing arm 23 can be separated from each other when spraying a flexible circuit board with a larger area, and rotated to make the two nozzles 25 tilt downward, cooperating with the translation of the pressing arm 23, so as to ensure comprehensive spraying.

[0032] During operation, the flexible circuit board to be coated is placed on the tray 5, and the tray 5 is placed on the moving platform 6. The moving platform 6 can be moved to the front end of the front box 1, and then the moving platform 6 moves inward to the middle of the rear box 2, and the sealing door 4 is closed. The two ends of the isolation film 10 are straightened by the filling box 17 and are located above the tray 5. Two movable pressing arms 23 are used to press the isolation film 10 from top to bottom. The protective film on the bottom 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. After the bottom of the protective film is attached to the flexible circuit board, the isolation film 10 is squeezed by the pressing arms 23. The extrusion 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 The release film 10 will remain on the flexible circuit board and the tray 5. The area of ​​the isolation film 10 and the protective film needs to be larger than the area of ​​the flexible circuit board to ensure full coverage of the protective film. When the bonding is completed, the movable table 6 moves to the front box 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 film material. The exposure module 26 can irradiate light to the surface of the protective film. The film material is a photosensitive material that can change under the irradiation of light; the part not irradiated by the light remains unchanged, while the part irradiated by the light will change. The circuit position on the surface of the circuit board has been recorded in the exposure module 26, and the irradiated parts are all parts that need to be protected. Then the movable table 6 drives the entire tray 5 to move to the rear box 2, close the gate 3 while adjusting the positions of the two pressing arms 23, spray the developer downward through multiple nozzles 25, the developer will dissolve the unexposed film protective film part, and the exposed part will be retained to form a clear circuit pattern for the flexible circuit board to connect the lines to the outside. 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 is completed, in order to ensure the subsequent other processing processes, the nozzle 25 is replaced with clean water for spraying to clean the developer. In order to ensure that the cleaning is clean, it is necessary to repeat the cleaning several 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, it is achieved The lamination and post-lamination processing functions of the flexible circuit board are realized, and the whole process is automatically controlled without human assistance; the pressing arm 23 not only has the functions of lamination and smoothing and developing spraying, but also can be used for subsequent developer cleaning function. When the circuit board needs to be coated with liquid material, the coating liquid can be directly sprayed toward the flexible circuit board through the nozzle 25. The spraying thickness can be determined according to the spraying time. After the spraying is completed, exposure and other processing processes are carried out. The movable function of the pressing arm 23 can ensure the comprehensiveness of the spraying during the spraying process; at the same time, the exposure and development operations are separated by the gate 3, so that the liquid in the rear box 2 does not affect the front box 1, ensuring the normal operation of the multi-function process and effectively improving the work efficiency; 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; 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; 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; 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. The filling box 17 can slide outward from the rear side of the rear box 2, and at the same time, the filling box 17 is opened to replace the internal positioning roller 19, and the positioning roller 19 can be fixed on the binding rod 18, and one end of the binding rod 18 is connected to a servo motor, so as to control the binding rod 18 and the positioning roller 19 to rotate, so as to ensure the straightening and movement of the isolation film 10; during the film pressing process, the straightened isolation film 10 is above the tray 5, and as the pressing arm 23 falls from the center, the center part of the isolation film 10 also sinks, and then the pressing arm 23 separates to both sides, so that the isolation film 10 is completely attached to the top of the tray 5, and then the pressing arm 23 repeats the film pressing many times, and cooperates with the negative pressure suction at the bottom to keep the protective film On the tray 5 and the flexible circuit board, there are hollows on the surface of the isolation film 10 to weaken the adsorption of negative pressure. As the pressing arm 23 leaves, the protective film is left on the tray 5 and the flexible circuit board. The area of ​​the protective film is larger than the flexible circuit board, and subsequent cutting is required; the protective film on the isolation film 10 is pasted in sections, and after each protective film thickness, a section of the middle hollow area is opened on the isolation film 10. When the film is pasted, the positioning roller 19 rotates to move the hollow position of the isolation film 10 to the bottom of the pressing arm 23, and the isolation film 10 will not block the upper pressing arm 23, so that there is no need to take out the filling box 17 to carry out spraying and cleaning; The material trough is used to pass through the isolation film 10, and the sliding roller is used to reduce the damage caused by friction. The positioning roller 19 is inserted from the rear end of the filling box 17, and the length of the plug rod is determined. The front end of the positioning roller 19 is equipped with a plug disc adapted to the plug rod, which can be used to fix the positioning roller 19; The supply valve 8 is used to connect to an external water source, and is used to pass various required raw materials through the transmission pipe 24 and the pressing arm 23, and finally inject them into the nozzle 25 for spraying. The spiral transmission pipe 24 can shrink by itself and will not affect the advancement of the support frame 27; The structural setting of the pressing arms 23 allows the two pressing arms 23 to 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 arms 23 can also turn outward, further increasing the area that can be pressed, ensuring the smooth progress of the film pressing process; With the arrangement of two groups of nozzles 25, the pressing arms 23 can be separated from each other when spraying a flexible circuit board with a larger area, and rotated to make the two nozzles 25 tilt downward, cooperating with the translation of the pressing arms 23, so as to ensure comprehensive spraying.

[0033] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached 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 at the top of the inner side of the front box (1).

2. A flexible circuit board laminating device according to claim 1, characterized in that: 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 on the guide rails (13), and the moving platform (6) is equipped with electric wheels drivingly connected to the surface of the guide rails (13).

3. A flexible circuit board laminating device according to claim 2, characterized in that: 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).

4. A flexible circuit board laminating device according to claim 3, characterized in that: 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).

5. The flexible circuit board laminating device according to claim 4, 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).

6. The flexible circuit board laminating device according to claim 5, 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).

7. The flexible circuit board laminating device according to claim 6, 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).

8. The flexible circuit board laminating device according to claim 7, 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).

9. The flexible circuit board laminating device according to claim 8, 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.

10. The flexible circuit board laminating device according to claim 9, 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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