A film laminating roller pressing device for multi-layer circuit board processing

Abstract

The present invention belongs to the technical field of film pressing of circuit boards, and in particular, is a film rolling device for processing multi-layer circuit boards. The following scheme is proposed, including a machine platform, a plurality of conveying rollers are arranged on the machine platform, a chassis with openings at both ends is fixed above the machine platform, a pressure roller 1 is rotatably arranged in the middle position of the chassis, a film body is arranged on the outer wall of the pressure roller 1, a rotatable pressure roller 2 is arranged on one side of the pressure roller 1, a mounting frame 2 is arranged outside the pressure roller 2, a vertically extending positioning shaft is fixed on the top of the mounting frame 2, a driving assembly is connected to the positioning shaft, and the width of the film body is less than the axial length of the pressure roller 1 and the pressure roller 2. The present invention makes the pressure roller 2 reciprocate around the positioning shaft, so that the distance between the two ends of the pressure roller 2 and the pressure roller 1 is constantly changed, thereby driving out the air gap between the film body and the circuit board from both sides to smooth the film, thereby improving the operation effect of the film rolling.

Description

Technical Field

[0001] The invention relates to the technical field of circuit board lamination, and in particular to a film laminating roller pressing device used for processing multi-layer circuit boards. Background Art

[0002] Multilayer circuit board lamination refers to covering the surface of the circuit board with a layer of protective film to increase the circuit board's wear resistance, corrosion resistance, dust and moisture resistance.

[0003] With reference to the Chinese patent with patent announcement number CN117156707B, a film pressing device for manufacturing FPC boards is disclosed, including a base and an equipment seat above the base, a hot pressing roller is installed at the lower end of the equipment seat, and a feeding mechanism located in front of the hot pressing roller is installed on the base, the hot pressing roller includes two end plates, an electric heating tube is sealed and connected between the two end plates, and a thermal conductive silicone is sleeved on the outer wall of the electric heating tube; a rotating shaft is installed on both of the end plates, and an end of one of the rotating shafts extends to the inside of the equipment seat and is connected to a driven wheel; the above invention sets the hot pressing roller into an internal hollow structure, when the temperature of the hot pressing roller changes, the internal air pressure changes accordingly, the position of the piston is controlled by the air pressure, and then the adjusting rod is rotated to drive the equipment seat to rise and fall, so as to adjust the height of the hot pressing roller without manual intervention, which is flexible and convenient, and helps to improve the hot pressing quality of the flexible circuit board and ensure the adhesion effect of the film and the circuit board.

[0004] The above patent uses a hot pressing roller to press the fed film against the surface of the circuit board. However, the position of the hot pressing roller, which is placed horizontally and perpendicular to the moving direction of the circuit board, is always constant, which makes it easy for air gaps to be left between the film and the circuit board due to bubbles. The air gaps are only compressed but cannot be effectively discharged. Summary of the invention

[0005] Based on the technical problems of the background technology, the present invention proposes a film laminating rolling device for multi-layer circuit board processing.

[0006] The present invention proposes a film rolling device for multi-layer circuit board processing, including a machine platform, a plurality of conveying rollers are arranged on the machine platform, a chassis with openings at both ends is fixed above the machine platform, a pressure roller 1 is rotatably arranged in the middle position of the chassis, a film body is arranged on the outer wall of the pressure roller 1, a rotatable pressure roller 2 is arranged on one side of the pressure roller 1, a mounting frame 2 is arranged outside the pressure roller 2, a vertically extending positioning shaft is fixed on the top of the mounting frame 2, the positioning shaft is connected to a driving assembly, and the width of the film body is smaller than the axial length of the pressure roller 1 and the pressure roller 2.

[0007] Preferably, a mounting groove is provided on the top of the chassis, a lifting plate is slidably arranged in the mounting groove, a through groove is provided at a position on the top of the lifting plate corresponding to the membrane body, a positioning frame is fixed on the top of the chassis, a hydraulic rod is connected between the positioning frame and the lifting plate, a positioning hole corresponding to the positioning shaft is provided on the lifting plate, and the positioning shaft is rotatably connected to the positioning hole through a bearing; a mounting frame 1 is fixed on the bottom of the lifting plate at a position corresponding to pressure roller 1, two ends of pressure roller 1 are rotatably connected to mounting frame 1, a motor 1 is fixed on the mounting frame 1, and a synchronous belt 1 is transmission-connected to an output shaft of the motor 1 and one end of pressure roller 1.

[0008] Preferably, heating elements are provided on both sides of the film body, both ends of the heating elements are fixed to the inner wall of the chassis, and the two heating elements are arranged at positions of the film body close to the pressure roller 1.

[0009] Preferably, a gear is fixed to the outer wall of the positioning shaft, the driving assembly is provided with a horizontally placed driving frame, the driving frame is provided with a moving rod, connecting rods are fixed at both ends of the moving rod, a driving rod is fixed at one end of the connecting rod, and the driving rod is configured as a rack structure meshing with the gear; an extension plate is fixed to the top of the moving rod, the side wall of the extension plate is connected to an electric push rod, and the electric push rod is fixed to the lifting plate.

[0010] Preferably, an air cylinder is provided on the side of the pressure roller one away from the pressure roller two, and air holes are distributed on the outer wall of the air cylinder. Air pipes are fixed at both ends of the air cylinder, one of the air pipes is blocked, and one end of the other air pipe is connected to an air suction pump, and the membrane body enters from the side of the pressure roller one close to the air cylinder.

[0011] Preferably, the air cylinder is provided with a similar mounting frame 2, a positioning shaft and a gear outside, the air pipe outer wall at both ends of the air cylinder is rotationally connected to the mounting frame 2, and a connecting hose is fixed to one end of the mounting frame 2, and the connecting hose is connected to the corresponding air pipe opening.

[0012] Preferably, a second motor is fixed on the second mounting frame, an output shaft of the second motor is rotatably connected to a second synchronous belt, and the second pressure roller and the outer wall of the air pipe are connected to the corresponding second synchronous belt.

[0013] Preferably, two limiting rods are fixed to the end of the moving rod, the two limiting rods are respectively located at two sides of the membrane body, and the distance between the two limiting rods is greater than the thickness of the membrane body.

[0014] Preferably, a penetrating fixing groove is provided on the lifting plate, the fixing groove is located on the side of the pressure roller 2 away from the pressure roller 1, an electric guide rail is fixed in the fixing groove, the electric guide rail is arranged parallel to the pressure roller 1, the bottom of the electric guide rail is connected to a fixing rod, and a smoothing block is fixed to the bottom end of the fixing rod.

[0015] The beneficial effects of the present invention are:

[0016] In the present invention, the film body is delivered to the position of the first pressing roller by means of a conventional film delivery assembly used externally, and the first pressing roller is used to squeeze the surface of the circuit board to perform a film rolling operation; and the second pressing roller on one side is used to rotate around its own axis to perform a film rolling operation on the position where the film has just been pasted, and at the same time, a driving assembly is used to reciprocate the positioning shaft, thereby causing the second pressing roller to reciprocate around the positioning shaft, so that the distance between the two ends of the second pressing roller and the first pressing roller is continuously changed, thereby driving out the air gap between the film body and the circuit board from both sides to smooth the film. Compared with the rolling operation in which the position remains unchanged, the film flattening effect can be effectively improved, and the influence of bubbles on the circuit board film can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a film laminating roller pressing device for multi-layer circuit board processing proposed by the present invention;

[0018] Figure 2 This is a schematic diagram of the distribution structure of the first mounting frame and the second mounting frame of a film laminating rolling device for multi-layer circuit board processing proposed by the present invention;

[0019] Figure 3 A schematic diagram of the bottom structure of a lifting plate of a film laminating roller pressing device for multi-layer circuit board processing proposed by the present invention;

[0020] Figure 4 A schematic diagram of the distribution structure of a pressure roller 1, a pressure roller 2, an air cylinder and a smoothing block of a film laminating rolling device for processing a multi-layer circuit board proposed by the present invention;

[0021] Figure 5 A schematic diagram of the structure of a pressing roller of a film laminating rolling device for processing a multi-layer circuit board proposed by the present invention;

[0022] Figure 6 This is a schematic structural diagram of a second pressing roller and a smoothing block of a film laminating rolling device for processing multi-layer circuit boards proposed by the present invention;

[0023] Figure 7 This is a schematic diagram of the structure of an air cylinder of a film laminating roller pressing device for multi-layer circuit board processing proposed by the present invention;

[0024] Figure 8 This is a schematic diagram of the air pipe position structure of a film laminating roller pressing device for multi-layer circuit board processing proposed by the present invention;

[0025] Fig. 9 The present invention is a schematic diagram of the structure of a driving frame of a film-laminating roller pressing device for multi-layer circuit board processing.

[0026] In the figure: 1 machine table, 2 conveyor roller, 3 chassis, 4 mounting frame 1, 5 pressure roller 1, 6 film body, 7 motor 1, 8 synchronous belt 1, 9 mounting frame 2, 10 pressure roller 2, 11 air cylinder, 12 air pipe, 13 air hole, 14 connecting hose, 15 motor 2, 16 synchronous belt 2, 17 positioning shaft, 18 gear, 19 driving frame, 191 moving rod, 192 connecting rod, 193 driving rod, 20 extension plate, 21 electric push rod, 22 through groove, 23 limit rod, 24 heating element, 25 electric guide rail, 26 fixing rod, 27 smoothing block, 28 lifting plate, 29 positioning frame, 30 hydraulic rod. DETAILED DESCRIPTION

[0027] Example 1: Reference Figure 1-Figure 6 and Fig. 9 A film-laminating rolling device for processing multi-layer circuit boards comprises a machine table 1, on which a plurality of conveying rollers 2 are arranged, a chassis 3 with openings at both ends is fixed above the machine table 1, a pressing roller 5 is rotatably arranged in the middle position of the chassis 3, a film body 6 is arranged on the outer wall of the pressing roller 5, a rotatable pressing roller 2 10 is arranged on one side of the pressing roller 5, the pressing roller 2 10 and the pressing roller 1 5 are arranged in parallel, a mounting frame 2 9 is arranged outside the pressing roller 2 10, the two ends of the pressing roller 2 10 are rotatably connected to the mounting frame 2 9, a vertically extending positioning shaft 17 is fixed on the top of the mounting frame 2 9, the positioning shaft 17 is connected to a driving component, the width of the film body 6 is smaller than the axial length of the pressing roller 5 and the pressing roller 2 10, and when in use, the circuit board to be film-laminating is fed to the conveying roller 2 In the chassis 3, the circuit board is transported from the pressing roller 1 5 toward the pressing roller 2 10, and the film body 6 is delivered to the position of the pressing roller 1 5 by a conventional film feeding assembly used externally, and the pressing roller 1 5 is used to squeeze the surface of the circuit board to perform a film rolling operation; and the pressing roller 2 10 on one side is used to rotate around its own axis to perform a rolling operation on the position where the film has just been pasted, and at the same time, the positioning shaft 17 is reciprocated by the driving assembly, so that the pressing roller 2 10 is reciprocated around the positioning shaft 17, so that the distance between the two ends of the pressing roller 2 10 and the pressing roller 1 5 is constantly changed, so that the air gap between the film body 6 and the circuit board is driven out from both sides to smooth the film. Compared with the rolling operation in which the position remains unchanged, it can effectively improve the film flattening effect and reduce the influence of bubbles on the circuit board film.

[0028] In the present invention, a penetrating installation groove is provided on the top of the chassis 3, and a lifting plate 28 is slidably provided in the installation groove. A through groove is provided at the top of the lifting plate 28 corresponding to the film body 6, and a positioning frame 29 is fixed on the top of the chassis 3. A hydraulic rod 30 is connected between the positioning frame 29 and the lifting plate 28. A positioning hole corresponding to the positioning shaft 17 is provided on the lifting plate 28, and the positioning shaft 17 is rotatably connected to the positioning hole through a bearing; a mounting frame 4 is fixed at the bottom of the lifting plate 28 at a position corresponding to the pressure roller 5, and both ends of the pressure roller 5 are rotatably connected to the mounting frame 4, and a motor 7 is fixed on the mounting frame 4, and a synchronous belt 8 is connected to the output shaft of the motor 7 and one end of the pressure roller 5 for transmission. When in use, the height of the pressure roller 5 and the pressure roller 10 can be adjusted downward by the hydraulic rod 30 to adjust the rolling strength, and the motor 7 can be used to drive the pressure roller 5 to actively rotate to perform the rolling operation to avoid jamming, so as to ensure the stability of the continuous movement of the circuit board and the film body 6 for film pasting and the effectiveness of film pasting rolling.

[0029] In the present invention, heating elements 24 are provided on both sides of the film body 6, and both ends of the heating elements 24 are fixed to the inner wall of the chassis 3. The two heating elements 24 are arranged at the position of the film body 6 close to the pressure roller 5, so that the film body 6 to be pasted and the pressure roller 5 are preheated by the heating elements 24 to improve the effectiveness of the film rolling, and the film body 6 entering the pressure roller 5 is limited by the two heating elements 24 to improve the operation effect of the film pasting.

[0030] In the present invention, a gear 18 is fixed to the outer wall of the positioning shaft 17, a driving assembly is provided with a horizontally placed driving frame 19, the driving frame 19 is provided with a horizontally placed moving rod 191, the moving rod 191 is vertically arranged with the pressure roller 15, connecting rods 192 are fixed to both ends of the moving rod 191, the connecting rod 192 is vertically arranged with the moving rod 191, a driving rod 193 is fixed to one end of the connecting rod 192, the driving rod 193 is vertically arranged with the connecting rod 192, and the driving rod 193 is arranged in a rack structure meshing with the gear 18; an extension plate 20 is fixed to the top of the moving rod 191, and the extension plate 20 is provided to the top of the moving rod 191. The side wall of the plate 20 is connected to an electric push rod 21, which is fixed to the lifting plate 28. The lifting plate 28 is provided with a through slot 22 corresponding to the extension plate 20, and the extension plate 20 extends upward from the through slot 22, so that the extension plate 20 and the drive frame 19 can be moved horizontally back and forth through the electric push rod 21, and the drive frame 19 can be moved horizontally back and forth in the direction of circuit board conveying. The drive rod 193 of the rack structure at both ends of the drive frame 19 is engaged with the gear 18 on the positioning shaft 17, so that the positioning shaft 17 can rotate back and forth, so as to cause the mounting frame 29 and the pressure roller 210 to reciprocate and deflect.

[0031] Embodiment 2: Embodiment 2 includes all structures and methods of Embodiment 1, with reference to Figure 1-Figure 9A film rolling device for processing multi-layer circuit boards also includes: an air cylinder 11 is arranged on the side of the pressure roller 5 away from the pressure roller 2 10, and air holes 13 are distributed on the outer wall of the air cylinder 11. Air pipes 12 are fixed at both ends of the air cylinder 11, one of the air pipes 12 is blocked, and one end of the other air pipe 12 is connected to an air suction pump. The film body 6 enters from the side of the pressure roller 5 close to the air cylinder 11. During the film rolling operation, suction is performed through the air holes 13 outside the air cylinder 11 at one side to suck the gap between the film body 6 and the circuit board to reduce the retention of bubbles between the film body 6 and the circuit board, thereby further improving the film rolling effect.

[0032] In the present invention, the same mounting frame 29, positioning shaft 17 and gear 18 are arranged outside the air cylinder 11. The positioning shaft 17 is rotatably connected to the lifting plate 28 through a bearing. The gear 18 is engaged with the driving rod 193 at the corresponding position. The outer wall of the air pipe 12 at both ends of the air cylinder 11 is rotatably connected to the mounting frame 29. A connecting hose 14 is fixed to one end of the mounting frame 29. The connecting hose 14 is connected to the corresponding air pipe 12 pipe opening, so that the air cylinder 11 can perform the same reciprocating deflection operation as the pressure roller 2 10, so that the operation of the air cylinder 11 and the smoothing operation of the pressure roller 2 10 on the film are coordinated with each other, so as to improve the effect of effectively driving out the air gap between the film body 6 and the circuit board and smoothing the film.

[0033] In the present invention, a motor 15 is fixed on the mounting frame 9, and the output shaft of the motor 15 is rotatably connected to a synchronous belt 16, and the pressure roller 10 and the outer wall of the air pipe 12 are connected to the corresponding synchronous belt 16, so that the pressure roller 10 and the air cylinder 11 are rotated as the circuit board moves through the motor 15, thereby ensuring the stable movement of the circuit board, and ensuring the continuity and effectiveness of the continuous film laminating operation.

[0034] In the present invention, two limit rods 23 are fixed to the end of the moving rod 191, and the two limit rods 23 are respectively located on both sides of the film body 6. The distance between the two limit rods 23 is greater than the thickness of the film body 6. When the driving frame 19 reciprocates horizontally to drive the air cylinder 11 and the pressure roller 10 to reciprocate, the heating element 24 at the lower position ensures the stability of the film body 6 at the bonding position, and when the pressure roller 10 and the air cylinder 11 are deflected to a near maximum angle, the limit rods 23 on both sides of the upper position can push the film body 6 to generate vibration. The vibration of the film body 6 and the suction operation of the air cylinder 11 effectively improve the flatness of the film.

[0035] Example 3: Based on Example 1 or Example 2, refer to Figure 1-Figure 9, a film rolling device for processing multi-layer circuit boards, further comprising: a lifting plate 28 is provided with a penetrating fixed groove, the fixed groove is located on the side of the pressing roller 10 away from the pressing roller 15, an electric guide rail 25 is fixed in the fixed groove, the electric guide rail 25 is arranged parallel to the pressing roller 15, a fixing rod 26 is connected to the bottom of the electric guide rail 25, a smoothing block 27 is fixed at the bottom end of the fixing rod 26, the smoothing block 27 is located near the side wall of the pressing roller 10, when in use, the fixing rod 26 and the smoothing block 27 can be carried by the electric guide rail 25 to reciprocate horizontally in the extension direction of the pressing roller 15, and the horizontal reciprocating movement of the smoothing block 27 is coordinated with the deflection operation of the pressing roller 10, that is, when one end of the pressing roller 10 is deflected toward the direction close to the pressing roller 15, the smoothing block 27 moves toward the end to ensure the smoothness of the movement of the smoothing block 27 and the pressing roller 15, and the air gap removal effect and the film smoothing operation effect are improved through the movement operation.

[0036] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A film laminating roller pressing device for processing multi-layer circuit boards, comprising a machine platform (1), a plurality of conveying rollers (2) being arranged on the machine platform (1), a machine box (3) with openings at both ends being fixed above the machine platform (1), a pressing roller (5) being rotatably arranged in the middle of the machine box (3), a film body (6) being arranged on the outer wall of the pressing roller (5), characterized in that: A rotatable pressing roller 2 (10) is arranged on one side of the pressing roller 1 (5), and a mounting frame 2 (9) is arranged outside the pressing roller 2 (10). A vertically extending positioning shaft (17) is fixed on the top of the mounting frame 2 (9), and the positioning shaft (17) is connected to a driving assembly. The width of the membrane body (6) is smaller than the axial length of the pressing roller 1 (5) and the pressing roller 2 (10). A gear (18) is fixed on the outer wall of the positioning shaft (17). The driving assembly is provided with a horizontally placed driving frame (19), and the driving frame (19) is provided with a moving rod (191). Connecting rods (192) are fixed at both ends of the moving rod (191), and a driving rod (193) is fixed at one end of the connecting rod (192). The driving rod (193) is arranged in a rack structure meshing with the gear (18); an extension plate is fixed on the top of the moving rod (191). (20), the side wall of the extension plate (20) is connected to an electric push rod (21), the side of the pressure roller (5) away from the pressure roller (10) is provided with an air cylinder (11), the outer wall of the air cylinder (11) is provided with air holes (13), both ends of the air cylinder (11) are fixed with air pipes (12), one of the air pipes (12) is blocked, and one end of the other air pipe (12) is connected to an air suction pump, the membrane body (6) enters from the side of the pressure roller (5) close to the air cylinder (11), the air cylinder (11) is provided with a similar mounting frame (9), a positioning shaft (17) and a gear (18), the outer wall of the air pipe (12) at both ends of the air cylinder (11) is rotatably connected to the mounting frame (9), one end of the mounting frame (9) is fixed with a connecting hose (14), and the connecting hose (14) is connected to the corresponding air pipe (12) pipe opening.

2. The film laminating rolling device for multi-layer circuit board processing according to claim 1 is characterized in that: The top of the chassis (3) is provided with an installation groove, a lifting plate (28) is slidably arranged in the installation groove, a through groove is provided at a position on the top of the lifting plate (28) corresponding to the membrane body (6), a positioning frame (29) is fixed on the top of the chassis (3), a hydraulic rod (30) is connected between the positioning frame (29) and the lifting plate (28), a positioning hole corresponding to the positioning shaft (17) is provided on the lifting plate (28), and the positioning shaft (17) is rotatably connected to the positioning hole through a bearing; A mounting frame (4) is fixed at a position at the bottom of the lifting plate (28) corresponding to the pressure roller (5); both ends of the pressure roller (5) are rotatably connected to the mounting frame (4); a motor (7) is fixed to the mounting frame (4); a synchronous belt (8) is transmission-connected between the output shaft of the motor (7) and one end of the pressure roller (5); and the electric push rod (21) is fixed to the lifting plate (28).

3. The film laminating rolling device for multi-layer circuit board processing according to claim 2 is characterized in that: Heating elements (24) are provided on both sides of the film body (6), and both ends of the heating elements (24) are fixed to the inner wall of the chassis (3). The two heating elements (24) are arranged at positions of the film body (6) close to the pressure roller 1 (5).

4. A film laminating rolling device for multi-layer circuit board processing according to claim 2 or 3, characterized in that: A second motor (15) is fixed on the second mounting frame (9), and the output shaft of the second motor (15) is rotatably connected to a second synchronous belt (16), and the second pressure roller (10) and the outer wall of the air pipe (12) are connected to the corresponding second synchronous belt (16).

5. The film laminating rolling device for multi-layer circuit board processing according to claim 2 or 3, characterized in that: Two limit rods (23) are fixed to the end of the moving rod (191), the two limit rods (23) are respectively located at two sides of the membrane body (6), and the distance between the two limit rods (23) is greater than the thickness of the membrane body (6).

6. The film laminating rolling device for multi-layer circuit board processing according to claim 2 or 3, characterized in that: The lifting plate (28) is provided with a penetrating fixing groove, which is located on the side of the second pressing roller (10) away from the first pressing roller (5), and an electric guide rail (25) is fixed in the fixing groove, and the electric guide rail (25) is arranged parallel to the first pressing roller (5). The bottom of the electric guide rail (25) is connected to a fixing rod (26), and a smoothing block (27) is fixed to the bottom end of the fixing rod (26).

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