An automatic film pasting device and a film pasting process thereof

Abstract

The application provides an automatic film pasting device, which comprises a machine body, a first unwinding roller, a second unwinding roller, a first winding roller, a second winding roller and a third winding roller which are rotationally connected to the machine body, the first winding roller corresponds to the first unwinding roller, the second winding roller and the third winding roller correspond to the second unwinding roller, the third winding roller is higher than the second unwinding roller, and the first winding roller, the second winding roller and the third winding roller are all externally connected with motors; the cutter assembly comprises a horizontal support seat and a lifting seat which is vertically movable above the support seat, the bottom of the lifting seat is provided with a slitting cutter; the movable mesh box is in the shape of a cover with an opening downward, and the movable mesh box is externally connected with a negative pressure pipe; the supporting mesh is arranged at the bottom of the movable mesh box; the driving mechanism is used for driving the movable mesh box to lift and translate; and the heating plate is used for heating the FPC film between the second winding roller and the second unwinding roller. The automatic film pasting device provided by the application can automatically paste the film.

Description

Technical Field

[0001] The invention belongs to the technical field of FPC film pasting, and relates to an automatic film pasting device and a film pasting process thereof. Background Art

[0002] Flexible printed circuits (FPCs) are highly reliable and flexible printed circuits made from polyimide or polyester film. They feature high wiring density, light weight, thin thickness, and excellent bendability. PI film, also known as polyimide film, is the world's highest-performing thin-film insulating material. It is made by polycondensing pyromellitic dianhydride (PMDA) and diaminodiphenyl ether (ODA) in a highly polar solvent, casting the resulting film, and then undergoing imidization.

[0003] At present, in the process of producing FPC films on the market, one of the steps is to tear off the FPC protective film, compound it with the PI film after heating, and then rewind it to form an FPC film product covered with PI film. Summary of the Invention

[0004] The object of the present invention is to provide an automatic film laminating device and a film laminating process thereof, aiming to achieve the effect of automatically laminating an FPC.

[0005] In order to solve the above technical problems, the present invention provides an automatic film-sticking device, comprising:

[0006] a machine body and a first unwinding roller, a second unwinding roller, a first winding roller, a second winding roller, and a third winding roller rotatably connected to the machine body, wherein the first winding roller corresponds to the first unwinding roller, the second winding roller and the third winding roller correspond to the second unwinding roller, and the third winding roller is higher than the second unwinding roller, and the first winding roller, the second winding roller, and the third winding roller are all externally connected to a motor;

[0007] A cutter assembly, comprising a horizontal support base and a lifting base vertically movable above the support base, wherein a slitting knife is provided at the bottom of the lifting base;

[0008] A mobile net box, wherein the mobile net box is in the shape of a cover with an opening facing downward and is externally connected to a negative pressure pipe;

[0009] A porous support net, which is arranged at the bottom of the mobile cage;

[0010] A driving mechanism, the driving mechanism is used to drive the mobile cage to lift and translate;

[0011] A heating plate is used to heat the FPC film located between the second winding roller and the second unwinding roller.

[0012] The body is further provided with two auxiliary feeding structures, one of which is located between the first unwinding roller and the cutter assembly, and the other of which is located downstream of the second unwinding roller and the third winding roller.

[0013] The auxiliary feeding structure comprises an auxiliary frame arranged on the body and an auxiliary roller horizontally and rotatably connected to the auxiliary frame, and an auxiliary motor is arranged outside the auxiliary roller to drive the rotation of the auxiliary roller.

[0014] The top of the auxiliary frame is provided with two support portions arranged vertically, the top of each support portion is provided with a connecting portion arranged horizontally, the bottom of the connecting portion is provided with two sliding rods arranged vertically, the two sliding rods are provided with lifting blocks arranged vertically and movably, and the two ends of the pressing roller are rotatably connected to the two lifting blocks, respectively.

[0015] A pressing bolt is arranged vertically through the connecting portion and is threadedly connected to the connecting portion, and the bottom of the pressing bolt abuts against the top of the lifting block.

[0016] The lifting block comprises a first lifting portion and a second lifting portion located below the first lifting portion, the first lifting portion and the second lifting portion are movably connected to the sliding rod, the pressing roller is rotatably connected to the second lifting portion, and the pressing bolt abuts against the top of the first lifting portion.

[0017] The top of the second lifting portion is provided with a pressing spring, and the bottom of the second lifting portion is provided with a lifting spring, the top of the pressing spring abuts against the bottom of the first lifting portion, and the bottom of the lifting spring abuts against the top of the auxiliary frame.

[0018] The cutter assembly further comprises two cutter frames arranged vertically on the body and a horizontal frame arranged horizontally on the top of the two cutter frames, the two ends of the support seat are connected to the cutter frames, and the two ends of the lifting seat are vertically and slidably connected to the cutter frames.

[0019] The top end of the horizontal frame is vertically provided with a lifting cylinder, the piston rod of the lifting cylinder is movably arranged through the horizontal frame and is connected to the top of the lifting seat.

[0020] The lifting seat is provided with a plurality of pre-tearing rods arranged vertically and penetratingly, the bottom of the pre-tearing rod is in communication with a pre-tearing suction cup, and the top of the pre-tearing rod is in communication with an air suction pipe, the pre-tearing suction cup is located above the support seat, and the pre-tearing suction cup is located upstream of the slitting cutter.

[0021] The lifting seat is vertically provided with a buffer ring, the pre-tearing rod vertically moves through the buffer ring, and the buffer ring is internally provided with an elastic body made of elastic material and connected with the buffer ring and the pre-tearing rod;

[0022] When the slitting cutter is in standby state, the bottom of the pre-tearing suction disc is lower than the bottom of the slitting cutter;

[0023] When the slitting cutter is in the lowest height, the bottom of the pre-tearing suction disc is higher than the bottom of the slitting cutter.

[0024] The machine body is further provided with a separation seat, which is located between the first unwinding roller and the first winding roller;

[0025] The separation seat is in the shape of a downwardly open cover, and the top of the separation seat is provided with a support hole and a penetration hole located downstream of the support hole, and the downstream of the separation seat is provided with a through hole;

[0026] The support roller and the separation roller are horizontally rotatably arranged in the separation seat, the top of the support roller penetrates through the support hole and is higher than the top of the separation seat, the separation roller is located in the separation seat, and the outer wall of the separation roller, the inner wall of the penetration hole, the inner wall of the through hole and the machine body form a through channel with a longitudinal section in the shape of C.

[0027] The driving mechanism comprises two moving frames oppositely arranged at the top of the machine body, the top of the moving frame is provided with a linear motor, and a moving frame is horizontally arranged between the two linear motors;

[0028] A plurality of stabilizing cylinders are vertically arranged on the moving frame, a stabilizing rod is vertically movably arranged in each stabilizing cylinder and abuts against the inner wall of the stabilizing cylinder, the bottoms of all the stabilizing rods are provided with an integrated frame, and the integrated frame is connected with the top of the moving net cage;

[0029] Two lifting lead screws are vertically rotatably arranged through the moving frame, the two lifting lead screws are in threaded cooperation with the integrated frame, and the top of the lifting lead screw is provided with a driven sprocket;

[0030] The top of the moving frame is provided with a motor frame, a lifting motor is vertically arranged on the motor frame, a driving sprocket is arranged on the output shaft of the lifting motor, two cladding sprockets are horizontally rotatably arranged at the top of the motor frame, a transmission chain is sequentially arranged around the driving sprocket and the two driven sprockets, the two cladding sprockets are both in matched connection with the outside of the transmission chain, and part of the transmission chain is cladded on the outer wall of the driving sprocket.

[0031] The present invention is further configured such that the support net is made of a flexible material, two clamping rails are arranged in parallel on the top of the inner wall of the movable net box, the longitudinal section of the clamping rails is in an inverted T-shape or a dovetail shape, a clamping frame is movably arranged between the two clamping rails and matched with the clamping rails, a laminating roller is arranged on the bottom of the clamping frame for horizontal rotation, the length direction of the laminating roller is perpendicular to the length direction of the clamping rails, the bottom of the laminating roller is lower than the bottom of the clamping frame, and the bottom of the laminating roller is in interference contact with the top of the support net;

[0032] A compression screw rod is provided horizontally passing through the mobile net box and is rotatably connected to the mobile net box. The compression screw rod is threadedly engaged with the compression frame. A compression motor for driving the compression screw rod to rotate is provided on the outside of the mobile net box.

[0033] Two heating racks are also arranged on the machine body, the heating racks are located upstream of the second winding roller, and a first heating roller and a second heating roller located above the first heating roller are arranged horizontally and rotatably between the two heating racks;

[0034] The heating plate is porous, and a fitting cover with an upward opening is provided on the top of the body. The heating plate is arranged on the top of the fitting cover, and a negative pressure space is formed between the fitting cover and the heating plate. A stabilizing tube is provided on the body, and the stabilizing tube is communicated with the negative pressure space.

[0035] The present invention also provides a process for applying a film using the automatic film applying device as described above, comprising the following steps:

[0036] S1, the first winding roller is driven by a motor to rotate, thereby pulling and rewinding the protective paper of the PI film, and stops pulling when the pulling length reaches a suitable length;

[0037] S2, the lifting seat and slitting knife of the cutter assembly move downward to cut the upper PI film while keeping the PI film protective paper intact;

[0038] S3, the mobile cage descends under the drive of the driving mechanism and is attached to the PI film through the support net;

[0039] S4, the negative pressure pipe forms negative pressure in the mobile cage under the action of the suction pump;

[0040] S5, move the net box upward to separate the PI film from the protective paper, and at the same time make the PI film adhere to the support net;

[0041] S6, the mobile cage is moved horizontally to the top of the FPC film;

[0042] S7, the protective paper of the FPC film is wound on the third winding roller, and at the same time the second winding roller rotates, pulling the FPC film to be laminated with the PI film onto the heating plate;

[0043] S8, heating the heating plate to increase the temperature of the FPC film;

[0044] S9, after moving the mesh box to align the angle and position of the PI film and the FPC, lower the height so that the PI film fits on the FPC film;

[0045] S10, the negative pressure of the mobile net box disappears and rises, the second winding roller winds up the FPC film with the PI film attached, and pulls the downstream FPC film to a suitable position.

[0046] Compared with the prior art, the present invention provides an automatic film laminating device, wherein the device of the present application is an automated device for laminating a PI film to an FPC film; secondly, when the FPC film is affixed with the PI film, there is a protective layer for protecting the FPC film. Similarly, before the PI film is used, there is also a layer of protective paper for protecting the PI film; therefore, the third winding roller is used to tear off the protective paper on the FPC film and then rewind it, while the first winding roller is used to tear off the protective paper on the PI film and then rewind it. At the same time, since the slitting knife will not cut the protective paper of the PI film when slitting the PI film (achieved by controlling the stroke of the slitting knife), the first winding roller can also pull the PI film forward to the appropriate position when rewinding the protective paper. The unit is usually 1.5 meters, that is, the protective paper of the PI film and the FPC are both moved forward 1.5 meters each time. Of course, it can also be selected according to the actual situation.

[0047] During the entire film laminating process, except for the PI film on the first unwinding roller and the FPC film on the second unwinding roller, which need to be manually moved up and down, the rest are automatically performed by the equipment; at the same time, there is a head-mounted photography device on the machine body, and the PI film and FPC film have corresponding holes. During the actual film laminating process, after obtaining the information of the holes on the film through the camera equipment, the position of the mobile net box can be adjusted, and the PI film and FPC film can be aligned before laminating, thereby ensuring the quality and effect of the laminating.

[0048] During the laminating process, the first winding roller rotates under the drive of the motor, thereby pulling and rewinding the protective paper of the PI film, and stops pulling when the pulling length reaches the appropriate length; the lifting seat and slitting knife of the cutter assembly descend to cut the upper PI film while keeping the PI film protective paper intact;

[0049] The mobile cage is then driven down by the driving mechanism and attached to the PI film through the support net. The negative pressure pipe, under the action of the suction pump, creates negative pressure inside the mobile cage. The mobile cage then moves upward, separating the PI film from the protective paper, while allowing the PI film to continue to adhere to the support net under the action of negative pressure.

[0050] The mobile net box moves horizontally to the top of the FPC film; the protective paper of the FPC film is wound on the third winding roller, while the second winding roller rotates, pulling the FPC film to be laminated with the PI film onto the heating plate; the heating plate heats up to increase the temperature of the FPC film, and after the PI film is laminated to the FPC, the glue on the PI film can be dissolved and tightly laminated to the FPC film;

[0051] After the mobile cage aligns the angle and position of the PI film and FPC, it lowers to allow the PI film to adhere to the FPC. Once the negative pressure on the mobile cage disappears, it rises, and the second reel rewinds the FPC film with the PI film attached, pulling the downstream FPC film into position. The movements of the first, second, and third reel rollers are independent of each other, ensuring efficient lamination. Specifically, after the PI film is removed from the protective paper, the first reel can immediately begin operation, without having to wait for the mobile cage to return to its original position. This allows the mobile cage to directly absorb the PI film. Similarly, once the FPC film is attached to the PI film and the mobile cage is separated from the PI film, the second and third reel rollers can immediately begin operation. This allows the mobile cage to remain in continuous motion throughout the entire lamination process, except when laminating the PI film, thereby improving lamination efficiency. Because the lamination process is automated, efficiency is increased while ensuring quality and effectiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a schematic diagram of the structure of an embodiment of an automatic film sticking device of the present invention. Figure 1 ;

[0053] Figure 2 yes Figure 1 Enlarged view of part A;

[0054] Figure 3 yes Figure 1 Enlarged view of part B;

[0055] Figure 4 yes Figure 1 Enlarged view of part C;

[0056] Figure 5 yes Figure 4 Enlarged view of part D in the middle;

[0057] Figure 6 yes Figure 4Enlarged view of part F in the middle;

[0058] Figure 7 is a structural schematic diagram of an embodiment of the automatic film pasting device of the present application Figure 2 ;

[0059] Figure 8 is Figure 7 Enlarged view of part F in the middle;

[0060] Figure 9 is Figure 7 Enlarged view of part G in the middle;

[0061] Figure 10 is a sectional view of an embodiment of the automatic film pasting device of the present application Figure 1 ;

[0062] Figure 11 is Figure 10 Enlarged view of part H in the middle;

[0063] Figure 12 is a sectional view of an embodiment of the automatic film pasting device of the present application Figure 2 ;

[0064] Figure 13 is Figure 12 Enlarged view of part J in the middle;

[0065] Figure 14 is a schematic diagram of an embodiment of the second unwinding roller part in the automatic film pasting device of the present application;

[0066] Figure 15 is a schematic diagram of an embodiment of the heating frame part in the automatic film pasting device of the present application;

[0067] Figure 16 is a schematic diagram of an embodiment of the separation seat part in the automatic film pasting device of the present application;

[0068] Figure 17 is a sectional view of an embodiment of the separation seat part in the automatic film pasting device of the present application;

[0069] Figure 18 is a schematic diagram of an embodiment of the heating plate part in the automatic film pasting device of the present application;

[0070] Figure 19 is a sectional view of an embodiment of the heating plate part in the automatic film pasting device of the present application;

[0071] Figure 20 is a schematic diagram of an embodiment of the driving mechanism part in the automatic film pasting device of the present application;

[0072] Figure 21 is Figure 20Enlarged view of the middle K section;

[0073] Figure 22 It is a schematic diagram of an embodiment of a laminating roller part in an automatic film laminating device of the present invention;

[0074] Figure 23 It is a cross-sectional view of an embodiment of the movable net box part of an automatic film-sticking device of the present invention.

[0075] Among them, 1. body; 2. first unwinding roller; 3. second unwinding roller; 4. first winding roller; 5. second winding roller; 6. third winding roller; 7. support seat; 8. lifting seat; 9. slitting knife; 10. mobile net box; 11. negative pressure pipe; 12. support net; 13. heating plate; 14. auxiliary frame; 15. auxiliary roller; 16. auxiliary motor; 17. pressing roller; 18. support part; 19. connecting part; 20. sliding rod; 21. lifting block; 21a. first lifting part; 21b. second lifting part; 22. clamping bolt; 23. clamping spring; 24. lifting spring; 25. cutting knife frame; 26. horizontal frame; 27. lifting cylinder; 28. pre-tear rod; 29. ​​pre-tear suction cup; 30. buffer ring; 31. elastic body; 32. separation seat; 33 , support hole; 34, insertion hole; 35, exit hole; 36, support roller; 37, separation roller; 38, moving frame; 39, linear motor; 40, moving frame; 41, stabilizing cylinder; 42, stabilizing rod; 43, integrated frame; 44, lifting screw; 45, passive sprocket; 46, motor frame; 47, lifting motor; 48, driving sprocket; 49, covering sprocket; 50, transmission chain; 51, clamping rail; 52, clamping frame; 53, laminating roller; 54, clamping screw; 55, clamping motor; 56, heating frame; 57, first heating roller; 58, second heating roller; 59, laminating cover; 60, stabilizing tube; 61, first stabilizing part; 62, second stabilizing part; 63, frame; 64, vertical rail; 65, vertical plate; 66, vertical block. DETAILED DESCRIPTION

[0076] The following is a detailed description of the automatic film laminating device and its process proposed by the present invention, with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become more apparent from the following description. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention. Identical or similar reference numerals in the drawings represent identical or similar components.

[0077] An automatic film-sticking device, such as Figures 1 to 23 Shown, including:

[0078] A machine body 1 and a first unwinding roller 2, a second unwinding roller 3, a first winding roller 4, a second winding roller 5 and a third winding roller 6 rotatably connected to the machine body 1, wherein the first winding roller 4 corresponds to the first unwinding roller 2, the second winding roller 5 and the third winding roller 6 correspond to the second unwinding roller 3, and the third winding roller 6 is higher than the second unwinding roller 3, and the first winding roller 4, the second winding roller 5 and the third winding roller 6 are all externally connected to a motor;

[0079] The cutter assembly includes a horizontal support base 7 and a lifting base 8 vertically movable above the support base 7, and a slitting knife 9 is provided at the bottom of the lifting base 8;

[0080] A mobile net box 10, wherein the mobile net box 10 is in the shape of a cover with an opening facing downward, and the mobile net box 10 is externally connected to a negative pressure pipe 11;

[0081] A porous support net 12, which is arranged at the bottom of the mobile net box 10;

[0082] A driving mechanism, the driving mechanism is used to drive the mobile cage 10 to lift and translate;

[0083] The heating plate 13 is used to heat the FPC film located between the second winding roller 5 and the second unwinding roller 3 .

[0084] Two auxiliary feeding structures are provided on the machine body 1, one of the auxiliary feeding structures is located between the first unwinding roller 2 and the cutter assembly, and the other auxiliary feeding structure is located downstream of the second unwinding roller 3 and the third winding roller 6;

[0085] The auxiliary feeding structure includes an auxiliary frame 14 arranged on the body 1 and an auxiliary roller 15 horizontally connected to the auxiliary frame 14. The auxiliary roller 15 is externally connected to an auxiliary motor 16 for driving the auxiliary roller 15 to rotate (the output shaft of the auxiliary motor 16 has a wheel, and there is also a wheel at the end of the auxiliary roller 15, and the two wheels are linked by a belt or chain). A pressure roller 17 is provided on the auxiliary frame 14, and the pressure roller 17 is located above the auxiliary roller 15.

[0086] The auxiliary frame 14 has two relatively vertically provided support portions 18 on the top, a connecting portion 19 is horizontally provided on the top of the two support portions 18, and two sliding rods 20 are vertically provided at the bottom of the connecting portion 19. Lifting blocks 21 are vertically movably provided on the two sliding rods 20, and the two ends of the pressing roller 17 are rotatably connected to the two lifting blocks 21 respectively;

[0087] A clamping bolt 22 is vertically passed through the connecting portion 19 and is threadedly connected to the connecting portion 19 . The bottom of the clamping bolt 22 abuts against the top of the lifting block 21 .

[0088] The lifting block 21 includes a first lifting portion 21a and a second lifting portion 21b located below the first lifting portion 21a. The first lifting portion 21a and the second lifting portion 21b are both movably connected to the sliding rod 20, and the pressing roller 17 is rotatably connected to the second lifting portion 21b. The pressing bolt 22 abuts against the top of the first lifting portion 21a.

[0089] A compression spring 23 is provided at the top of the second lifting portion 21 b , and a lifting spring 24 is provided at the bottom. The top of the compression spring 23 abuts against the bottom of the first lifting portion 21 a , and the bottom of the lifting spring 24 abuts against the top of the auxiliary frame 14 .

[0090] The cutter assembly further includes two cutter racks 25 vertically arranged on the body 1 and a horizontal rack 26 horizontally arranged on top of the two cutter racks 25. Both ends of the support base 7 are connected to the cutter racks 25, and both ends of the lifting base 8 are vertically slidably connected to the cutter racks 25.

[0091] A lifting cylinder 27 is vertically provided at the middle of the top of the horizontal frame 26 . The piston rod of the lifting cylinder 27 movably passes through the horizontal frame 26 and is connected to the top of the lifting seat 8 .

[0092] The lifting seat 8 is provided with a plurality of vertical through-shaped pre-tearing rods 28, the bottom of the pre-tearing rod 28 is connected to a pre-tearing suction cup 29, and the top is connected to a suction pipe. The pre-tearing suction cup 29 is located above the support seat 7 and upstream of the slitting knife 9;

[0093] A buffer ring 30 is vertically provided on the lifting seat 8, and the pre-tear rod 28 vertically moves through the buffer ring 30. An elastic body 31 made of elastic material and connected to both the buffer ring 30 and the pre-tear rod 28 is provided in the buffer ring 30;

[0094] When the slitting knife 9 is in the standby state, the bottom of the pre-tear suction cup 29 is lower than the bottom of the slitting knife 9;

[0095] When the slitting knife 9 is at the lowest height, the bottom of the pre-tear suction cup 29 is higher than the bottom of the slitting knife 9 .

[0096] The machine body 1 is further provided with a separation seat 32, and the separation seat 32 is located between the first unwinding roller 2 and the first winding roller 4;

[0097] The separation seat 32 is in the shape of a cover with an opening facing downward, and a support hole 33 and an inlet hole 34 located downstream of the support hole 33 are formed on the top of the separation seat 32 , and an outlet hole 35 is formed downstream of the separation seat 32 ;

[0098] A support roller 36 and a separation roller 37 are horizontally rotatably arranged in the separation seat 32. The top of the support roller 36 passes through the support hole 33 and is higher than the top of the separation seat 32. The separation roller 37 is located in the separation seat 32. A passage with a C-shaped longitudinal section is formed between the outer wall of the separation roller 37, the inner wall of the penetration hole 34, the inner wall of the exit hole 35 and the body 1.

[0099] The driving mechanism includes two moving frames 38 relatively arranged on the top of the body 1, a linear motor 39 is provided on the top of the moving frame 38, and a moving frame 40 is horizontally arranged between the two linear motors 39;

[0100] The mobile frame 40 is vertically provided with a plurality of stabilizing cylinders 41. Each of the stabilizing cylinders 41 is vertically and movably provided with a stabilizing rod 42 that is attached to the inner wall of the stabilizing cylinder 41. An integral frame 43 is provided at the bottom of all the stabilizing rods 42. The integral frame 43 is connected to the top of the mobile cage 10.

[0101] Two lifting screw rods 44 are provided through the movable frame 40 for vertical rotation. Both of the lifting screw rods 44 are threadedly engaged with the integrated frame 43. A passive sprocket 45 is provided on the top of the lifting screw rods 44.

[0102] A motor frame 46 is provided on the top of the movable frame 40, and a lifting motor 47 is vertically provided on the motor frame 46. A driving sprocket 48 is provided on the output shaft of the lifting motor 47. Two covered sprockets 49 are provided for horizontal rotation on the top of the motor frame 46. A transmission chain 50 is provided that passes around the driving sprocket 48 and the two driven sprockets 45 in sequence. The two covered sprockets 49 are both connected to the outside of the transmission chain 50, and part of the transmission chain 50 is covered on the outer wall of the driving sprocket 48.

[0103] The support net 12 is made of a flexible material. Two clamping rails 51 are arranged in parallel on the top of the inner wall of the mobile net box 10. The longitudinal section of the clamping rail 51 is in an inverted T-shape or a dovetail shape. A clamping frame 52 is movably arranged between the two clamping rails 51 and matched with the clamping rail 51. A laminating roller 53 is arranged on the bottom of the clamping frame 52 for horizontal rotation. The length direction of the laminating roller 53 is perpendicular to the length direction of the clamping rail 51, and the bottom of the laminating roller 53 is lower than the bottom of the clamping frame 52. The bottom of the laminating roller 53 interferes with the top of the support net 12.

[0104] A compression screw 54 is provided horizontally through the mobile net box 10 and is rotatably connected to the mobile net box 10. The compression screw 54 is threadedly engaged with the compression frame 52. A compression motor 55 is provided on the outside of the mobile net box 10 for driving the compression screw 54 to rotate.

[0105] Two heating racks 56 are also disposed on the machine body 1 . The heating racks 56 are located upstream of the second winding roller 5 . A first heating roller 57 and a second heating roller 58 located above the first heating roller 57 are disposed horizontally between the two heating racks 56 .

[0106] The heating plate 13 is porous, and a fitting cover 59 with an upward opening is provided on the top of the body 1. The heating plate 13 is provided on the top of the fitting cover 59, and a negative pressure space is formed between the fitting cover 59 and the heating plate 13. A stabilizing tube 60 is provided on the body 1, and the stabilizing tube 60 is communicated with the negative pressure space.

[0107] The present invention also provides a process for applying a film using the automatic film applying device as described above, comprising the following steps:

[0108] S1, the first winding roller 4 is driven by the motor to rotate, thereby pulling and rewinding the protective paper of the PI film, and stops pulling when the pulling length reaches the appropriate length;

[0109] S2, the lifting base 8 and the slitting knife 9 of the cutter assembly move downward to cut the upper PI film while keeping the PI film protective paper intact;

[0110] S3, the mobile cage 10 is driven by the driving mechanism to descend and is attached to the PI film through the support net 12;

[0111] S4, the negative pressure pipe 11 forms a negative pressure in the mobile cage 10 under the action of the suction pump;

[0112] S5, moving the net box 10 upward to separate the PI film from the protective paper, and at the same time making the PI film adhere to the support net 12;

[0113] S6, the mobile cage 10 is moved horizontally to above the FPC film;

[0114] S7, the protective paper of the FPC film is wound on the third winding roller 6, and at the same time the second winding roller 5 rotates, pulling the FPC film to be laminated with the PI film to move to the heating plate 13;

[0115] S8, the heating plate 13 is heated to increase the temperature of the FPC film;

[0116] S9, after the mobile net box 10 aligns the angle and position of the PI film and the FPC, the height is lowered, so that the PI film is attached on the FPC film;

[0117] S10, after the mobile net box 10 disappears, the second winding roller 5 winds the FPC film with the PI film, and drags the downstream FPC film to the appropriate position.

[0118] The automatic film pasting device and the film pasting process provided by the application, wherein the device of the application is an automatic device for attaching the PI film on the FPC film; secondly, when the FPC film is pasted with the PI film, there is a protective layer for protecting the FPC film, and similarly, before the PI film is used, there is a protective paper for protecting the PI film; therefore, the third winding roller 6 is used to tear off the protective paper on the FPC film and then wind it, and the first winding roller 4 is used to tear off the protective paper on the PI film and then wind it, and since the slitting cutter 9 does not cut off the protective paper of the PI film when it is slitting the PI film, the first winding roller 4 can also simultaneously drag the PI film forward to the appropriate position when winding the protective paper. Usually, 1.5 meters is a unit, that is, the protective paper of the PI film and the FPC are both dragged forward by 1.5 meters each time, of course, it can also be selected according to the actual situation.

[0119] In the whole film pasting process, except that the PI film on the first winding roller 2 and the FPC film on the second winding roller 3 need to be manually put on and taken off, the rest are automatically performed by the equipment; at the same time, the equipment also has a head portrait shooting device on the machine body 1, and the PI film and the FPC film have corresponding holes, in the actual film pasting process, after the information of the holes on the film is obtained by the camera shooting device, the position of the mobile net box 10 can be adjusted, and the PI film and the FPC film are aligned before being attached, so as to ensure the quality and effect of the attachment.

[0120] In the film pasting process, first, the first winding roller 4 rotates under the drive of the motor, so as to drag and rewind the protective paper of the PI film, and stop dragging when the length reaches the appropriate length; the lifting seat 8 and the slitting cutter 9 of the cutter assembly descend, cut off the PI film above, and at the same time, the protective paper of the PI film is not cut off;

[0121] Then the mobile net box 10 is driven to descend by the driving mechanism, and is attached on the PI film through the supporting net 12; the negative pressure pipe 11 forms negative pressure in the mobile net box 10 under the action of the suction pump; then the mobile net box 10 ascends, separates the PI film from the protective paper, and at the same time, the PI film can continuously attach on the supporting net 12 under the action of the negative pressure;

[0122] The mobile cage 10 is moved horizontally to the top of the FPC film; the protective paper of the FPC film is wound on the third winding roller 6, while the second winding roller 5 rotates, pulling the FPC film to be laminated with the PI film to move to the heating plate 13; the heating plate 13 is heated to increase the temperature of the FPC film, and after the PI film is laminated to the FPC, the glue on the PI film can be dissolved and tightly laminated to the FPC film;

[0123] After the mobile cage 10 aligns the angles and positions of the PI film and the FPC, it lowers its height, allowing the PI film to adhere to the FPC film. After the negative pressure on the mobile cage 10 disappears, it rises, and the second reel 5 rewinds the FPC film adhered with the PI film, pulling the downstream FPC film into the appropriate position. The movements of the first reel 4, the second reel 5, and the third reel 6 are independent of each other, thus ensuring the efficiency of the entire film application process. Specifically, after the PI film is removed from the protective paper, the first reel 4 can immediately operate without waiting for the mobile cage 10 to return to its original position. This allows the mobile cage 10 to directly absorb the PI film. Similarly, once the FPC film is adhered to the PI film and the mobile cage 10 is separated from the PI film, the second reel 5 and the third reel 6 can immediately operate. This allows the mobile cage 10 to remain in motion throughout the entire film application process, except when applying the PI film, thereby improving film application efficiency. Since the film is applied automatically by the equipment, the efficiency of the film can be made higher while the quality and effect of the film can be guaranteed.

[0124] Among them, there is a certain friction between the first unwinding roller 2 and the second unwinding roller 3 and the body 1, or a magnetic tensioner is used, which can ensure that the PI film and FPC film can remain tensioned. However, if only the first winding roller 4, the second winding roller 5 and the third winding roller 6 are used to pull and move, it may cause the protective paper or FPC film to break, etc.; therefore, at this time, it is necessary to use an auxiliary feeding structure for auxiliary feeding, thereby increasing the power part to prevent the PI film and FPC film from breaking, so that the film laminating process can proceed normally and stably.

[0125] While the first winding roller 4 pulls the protective paper, the auxiliary motor 16 drives the auxiliary roller 15 to rotate; at the same time, since the pressure roller 17 presses the PI film onto the auxiliary roller 15, the PI film can drive the pressure roller 17 to rotate; this can first reduce the resistance of the PI film and prevent its wear, and secondly, since the pressure roller 17 and the auxiliary roller 15 can drive the PI film to move forward, this can assist in pulling it forward; similarly, the auxiliary feeding structure located at the FPC film can also assist in conveying the FPC film forward.

[0126] When passing the PI film or FPC film between the pressing roller 17 and the auxiliary roller 15, it is only necessary to rotate the pressing bolt 22 so that the first lifting part 21a and the second lifting part 21b are raised under the elastic force of the lifting spring 24, and the PI film or FPC film can be passed through easily.

[0127] After passing through, the pressing bolt 22 is rotated to drive the first lifting part 21a and the second lifting part 21b to descend, and the pressing roller 17 presses the film onto the auxiliary roller 15, and then the auxiliary motor 16 drives the auxiliary roller 15 to rotate.

[0128] Due to the presence of the lifting spring 24, it is easier and more convenient to pass through the membrane without having to manually raise the lifting block 21. At the same time, due to the presence of the compression spring 23, the pressure applied by the first lifting part 21a to the second lifting part 21b changes gradually and slowly, preventing the membrane from being pressed too tightly or too loosely, and ensuring the compression and auxiliary feeding effects. In addition, the top and bottom of the second lifting part 21b are respectively provided with spaces for accommodating the compression ring and the lifting spring 24, while the bottom of the first lifting part 21a is also provided with spaces for accommodating the compression spring 23. This can improve the shape stability of the compression spring 23 and the lifting spring 24, while also ensuring the accommodation space for the lifting spring 24, allowing it to operate normally. The vertical movement of the first lifting part 21a and the second lifting part 21b is limited by the sliding rod 20, which also ensures the positional stability and movement stability of the first lifting part 21a, the second lifting part 21b and the compression roller 17.

[0129] When the PI film moves to a suitable position, it stops being pulled; at this time, under the action of the first winding roller 4 and the first unwinding roller 2 (which have resistance with the machine body 1), the PI film and its protective paper are kept in a horizontal tension state and attached to the top of the support seat 7;

[0130] Then, the lifting cylinder 27 (preferably an air cylinder) on the top of the horizontal frame 26 drives the lifting seat 8 downward; during the downward process, the flexible pre-tear suction cup 29 first adheres to the upper side of the PI film, and then the slitting knife 9 descends and cuts the PI film; from the time the pre-tear suction cup 29 adheres to the top of the PI film to the time the slitting knife 9 moves to the lowest height, relative sliding occurs between the hard pre-tear rod 28 and the buffer ring 30 (the relative moving distance is very small, preferably 2-5 mm);

[0131] After the slitting is completed, the slitting knife 9 is raised by the lifting seat 8 and is separated from the PI film before the pre-tear suction cup 29; as the height of the slitting knife 9 increases, the pre-tear suction cup 29 is also separated from the top of the PI film; during the whole process, the external suction pump (small or micro) uses the suction pipe to make the pre-tear rod 28 and the pre-tear suction cup 29 both in a negative pressure state, so that when the pre-tear suction cup 29 is raised, the edge of the next PI film can be separated from the protective paper by one end, which is convenient for the subsequent moving of the net box 10 to separate the PI film from the protective paper.

[0132] Among them, there are several pre-tear rods 28 arranged in the length direction of the lifting seat 8, so that the end of the PI film can be torn better; secondly, the pre-tear rod 28 and the buffer ring 30 are connected by a flexible or elastic elastomer 31, so that the elastomer 31 (such as a rubber layer cylinder or a silicone layer cylinder) can drive the pre-tear rod 28 to rise and fall, and at the same time, the pre-tear rod 28 can also have a certain relative movement with the buffer ring 30.

[0133] During the pulling process, the protective paper of the PI film sequentially passes through the penetration hole 34, is wound around the outer wall of the separation roller 37, passes through the penetration hole 35, and is wound around the outer wall of the first winding roller 4. Secondly, before the PI film is separated, the end of the PI film is located upstream of the penetration hole 34, which can effectively prevent the PI film from bending. Secondly, it is preferred that the end of the PI film to be raised is above or downstream of the support roller 36, so that the pre-torn portion of the PI film end can be slightly tilted, facilitating the separation of the protective paper from the moving net box 10. The top of the support roller 36 is higher than the top of the separation seat 32, so that the PI film can encounter less resistance during the forward movement and move forward more conveniently.

[0134] When the mobile net box 10 transfers the PI film, first, under the driving action of the two linear motors 39 (wherein the stator assembly of the linear motor 39 is fixedly arranged on the top of the mobile frame 38, and the moving assembly is fixedly connected to the mobile frame 40), the mobile frame 40 is moved to the top of the cut PI film; then the lifting motor 47 drives the active sprocket 48 to rotate, and the active sprocket 48 drives the two passive sprockets 45 to rotate through the transmission chain 50, and at the same time drives the two lifting screws 44 to rotate, and the lifting screws 44 simultaneously lower the height of the integrated frame 43; because the top of the integrated frame 43 is also limited by the stabilizing cylinder 41 through the stabilizing rod 42, the integrated frame 43 can only be lifted and lowered, and cannot be rotated;

[0135] When the flexible (capable of deformation and having a certain strength) support net 12 at the bottom of the mobile net box 10 is attached to the top of the PI film, and the negative pressure tube 11 creates negative pressure in the mobile net box 10, the lifting screw 44 rotates in the opposite direction, raising the integrated frame 43 and the mobile net box 10, thereby tearing the PI film off the protective paper;

[0136] After being raised to a suitable height, the linear motor 39 drives the movable frame 40 to move in the opposite direction, and the PI film moves to the top of the FPC film; then the lifting screw 44 drives the integrated frame 43 and the movable mesh box 10 to descend, and the PI film is laminated to the FPC film whose temperature has been increased (the bottom of the heating plate 13 has an electric heating wire, which can continuously heat the PFC film); after the lamination is completed, the pressing motor 55 drives the pressing screw 54 to rotate, and the pressing screw 54 drives the pressing frame 52 to move along the pressing rail 51; during this movement, the laminating roller 53 appropriately presses the support mesh 12 downward to deform it, so that the PI film is better laminated to the FPC film;

[0137] When the laminating roller 53 completes the laminating of the entire PI film, the negative pressure in the mobile mesh box 10 disappears; or it can disappear when the laminating roller 53 starts to move; then the mobile mesh box 10 rises and moves to carry out the next round of moving the PI film; and the pressing frame 52 can either remain in place and move in the opposite direction to press the PI film next time, or return to its original position to press the PI film next time.

[0138] Among them, before the FPC film laminated with the PI film is rewound by the second winding roller 5, it will be pressed by the first heating roller 57 and the second heating roller 58, so that the film laminating effect is better; not only that, the first heating roller 57 is driven by the motor to rotate, and the second heating roller 58 can heat the FPC film, so that the film laminating effect is better; the heat source of the second heating roller 58 can be heating by an electric heating wire, heating by injecting a heat medium, or heating by heat radiation.

[0139] When the FPC film moves onto the heating plate 13, the fan external to the stabilizing tube 60 is started, so that negative pressure is formed in the negative pressure space, so that the FPC film can be stably adhered to the heating plate 13 through the porous heating plate 13, which is convenient for film pasting. At the same time, since the gap between the FPC film and the heating plate 13 is reduced, the heating effect of the FPC film is also better, and the pasting effect is also better guaranteed.

[0140] There is a certain resistance between the first unwinding roller 2 and the second unwinding roller 3 and the machine body 1, so that they can rotate when subjected to tension, but a certain amount of tension is required to ensure that the film remains in a tensioned state, but at the same time the tension requirement is not too large to prevent the film from being torn. Or the first unwinding roller 2 and the second unwinding roller 3 are connected to the machine body 1 through a magnetic powder tensioner (such as Figure 2 As shown), the required pulling force can be controlled.

[0141] In another embodiment, a T-shaped or dovetail-shaped track is provided at the top of the movable frame 38, and the top of the movable frame 40 is matched with the track; at the same time, a motor and a screw are provided at the top of the movable frame 38, and the screw is threadedly matched with the movable frame 40, so that the movable frame 40 can also move back and forth along the movable frame 38.

[0142] In yet another embodiment, Figure 22 and Figure 23 As shown, the side wall of the pressing frame 52 is provided with two vertical rails 64 (either T-shaped or dovetail-shaped), and vertical plates 65 are provided on the two vertical rails 64 in a vertical and movable manner; a cylinder or electric push rod is provided on the side of the pressing frame 52, and a vertical block 66 is provided at the bottom of the piston rod of the cylinder or electric push rod, and then the laminating roller 53 is rotatably connected to the vertical block 66. When the PI film and FPC film are not laminated, the cylinder or electric push rod raises the height of the vertical block 66 and the laminating roller 53 so that the laminating roller 53 is higher than the support net 12; in this way, when the laminating roller 53 returns to its original position after laminating is completed, and when the equipment is not in use, it can play a smaller role on the support net 12 to ensure that the support net 12 maintains its shape; then when laminating, the cylinder or electric push rod can lower the laminating roller 53 and assist in laminating normally.

[0143] In another embodiment, the machine body 1 is further provided with two stabilizing units, one of which is located upstream of the heating frame 56, and the other is located upstream of the first winding roller 4. The stabilizing units include a horizontal first stabilizing portion 61 and a second stabilizing portion 62 located above the first stabilizing portion 61; an inverted U-shaped frame 63 is provided at the top of the machine body 1, the first stabilizing portion 61 is fixedly connected to the frame 63, and the second stabilizing portion 62 is vertically movably connected to the frame 63; a cylinder is provided at the top of the frame 63 for raising and lowering the second stabilizing portion 62; the protective paper of the PI film and the FPC film for laminating both pass between the first stabilizing portion 61 and the second stabilizing portion 62; when the PI film and the protective paper are separated, the second stabilizing portion 62 at the corresponding position descends and presses the protective paper; when the movable cage 10 is laminating the film, the second stabilizing portion 62 at the corresponding position descends and presses the FPC film; thus, the stabilizing units can improve the normal laminating process.

[0144] It should be noted that the various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0145] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. An automatic film-sticking device, characterized in that: include: a machine body and a first unwinding roller, a second unwinding roller, a first winding roller, a second winding roller, and a third winding roller rotatably connected to the machine body, wherein the first winding roller corresponds to the first unwinding roller, the second winding roller and the third winding roller correspond to the second unwinding roller, and the third winding roller is higher than the second unwinding roller, and the first winding roller, the second winding roller, and the third winding roller are all externally connected to a motor; A cutter assembly, comprising a horizontal support base and a lifting base vertically movable above the support base, wherein a slitting knife is provided at the bottom of the lifting base; A mobile net box, wherein the mobile net box is in the shape of a cover with an opening facing downward and is externally connected to a negative pressure pipe; A porous support net, which is arranged at the bottom of the mobile cage; A driving mechanism, the driving mechanism is used to drive the mobile cage to lift and translate; a heating plate, the heating plate being used to heat the FPC film located between the second winding roller and the second unwinding roller; The cutter assembly further comprises two cutter racks vertically arranged on the machine body and a horizontal rack horizontally arranged on top of the two cutter racks, both ends of the support base are connected to the cutter racks, and both ends of the lifting base are vertically slidably connected to the cutter racks; A lifting cylinder is vertically provided at the middle of the top of the horizontal frame, and the piston rod of the lifting cylinder moves through the horizontal frame and is connected to the top of the lifting seat; The lifting seat is provided with a plurality of vertical through-shaped pre-tearing rods, the bottom of the pre-tearing rod is connected to a pre-tearing suction cup, and the top is connected to a suction pipe. The pre-tearing suction cup is located above the support seat and upstream of the slitting knife. The driving mechanism includes two movable frames relatively arranged on the top of the machine body, a linear motor is arranged on the top of the movable frame, and a movable frame is horizontally arranged between the two linear motors; The movable frame is vertically provided with a plurality of stabilizing cylinders, each of which is vertically and movably provided with a stabilizing rod that is attached to the inner wall of the stabilizing cylinder, and an integrated frame is provided at the bottom of all the stabilizing rods, and the integrated frame is connected to the top of the movable cage; Two lifting screw rods are provided for vertical rotation through the movable frame, both of which are threadedly engaged with the integrated frame, and a passive sprocket is provided on the top of the lifting screw rods; A motor frame is provided on the top of the mobile frame, a lifting motor is vertically provided on the motor frame, a driving sprocket is provided on the output shaft of the lifting motor, two covering sprockets are provided on the top of the motor frame for horizontal rotation, a transmission chain is provided which passes through the driving sprocket and the two driven sprockets in sequence, the two covering sprockets are both connected to the outside of the transmission chain, and a part of the transmission chain is covered on the outer wall of the driving sprocket; The support net is made of a flexible material, and two pressing rails are arranged in parallel on the top of the inner wall of the movable net box. The longitudinal section of the pressing rails is in an inverted T-shape or a dovetail shape. A pressing frame is movably arranged between the two pressing rails and matched with the pressing rails. A laminating roller is arranged on the bottom of the pressing frame for horizontal rotation. The length direction of the laminating roller is perpendicular to the length direction of the pressing rails, and the bottom of the laminating roller is lower than the bottom of the pressing frame. The bottom of the laminating roller interferes with the top of the support net. A compression screw rod passing through the mobile net box is horizontally arranged on the mobile net box, the compression screw rod is rotatably connected to the mobile net box, the compression screw rod is threadedly engaged with the compression frame, and a compression motor for driving the compression screw rod to rotate is arranged outside the mobile net box.

2. The automatic film-sticking device according to claim 1, characterized in that: Two auxiliary feeding structures are provided on the machine body, one of the auxiliary feeding structures is located between the first unwinding roller and the cutter assembly, and the other auxiliary feeding structure is located downstream of the second unwinding roller and the third winding roller; The auxiliary feeding structure includes an auxiliary frame arranged on the machine body and an auxiliary roller horizontally connected to the auxiliary frame. The auxiliary roller is externally connected to an auxiliary motor for driving the auxiliary roller to rotate. A pressure roller is arranged on the auxiliary frame, and the pressure roller is located above the auxiliary roller.

3. The automatic film-sticking device according to claim 2, characterized in that: The top of the auxiliary frame is relatively vertically provided with two supporting parts, the tops of the two supporting parts are horizontally provided with connecting parts, the bottoms of the connecting parts are vertically provided with two sliding rods, and the two sliding rods are vertically movably provided with lifting blocks, and the two ends of the pressing roller are respectively rotatably connected to the two lifting blocks; A clamping bolt is vertically passed through the connecting portion and is threadedly connected to the connecting portion, and the bottom of the clamping bolt abuts against the top of the lifting block.

4. The automatic film-sticking device according to claim 3, characterized in that: The lifting block includes a first lifting portion and a second lifting portion located below the first lifting portion, the first lifting portion and the second lifting portion are both movably connected to the sliding rod, and the pressing roller is rotatably connected to the second lifting portion, and the pressing bolt abuts against the top of the first lifting portion; The top of the second lifting part is provided with a compression spring, and the bottom is provided with a lifting spring. The top of the compression spring abuts against the bottom of the first lifting part, and the bottom of the lifting spring abuts against the top of the auxiliary frame.

5. The automatic film-sticking device according to claim 1, characterized in that: A buffer ring is vertically provided on the lifting seat, and the pre-tear rod vertically moves through the buffer ring. An elastic body made of elastic material connected to both the buffer ring and the pre-tear rod is provided inside the buffer ring; When the slitting knife is in a standby state, the bottom of the pre-tear suction cup is lower than the bottom of the slitting knife; When the slitting knife is at the lowest height, the bottom of the pre-tear suction cup is higher than the bottom of the slitting knife.

6. The automatic film-sticking device according to claim 1, characterized in that: The machine body is further provided with a separation seat, which is located between the first unwinding roller and the first winding roller; The separation seat is in the shape of a cover with an opening facing downward, and a support hole and an entry hole located downstream of the support hole are opened on the top of the separation seat, and an exit hole is opened downstream of the separation seat; A support roller and a separation roller are horizontally rotatably arranged in the separation seat, the top of the support roller passes through the support hole and is higher than the top of the separation seat, the separation roller is located in the separation seat, and a passage with a C-shaped longitudinal section is formed between the outer wall of the separation roller, the inner wall of the penetration hole, the inner wall of the exit hole and the machine body.

7. The automatic film-sticking device according to claim 1, characterized in that: Two heating racks are also arranged on the machine body, the heating racks are located upstream of the second winding roller, and a first heating roller and a second heating roller located above the first heating roller are arranged horizontally and rotatably between the two heating racks; The heating plate is porous, and a fitting cover with an upward opening is provided on the top of the body. The heating plate is arranged on the top of the fitting cover, and a negative pressure space is formed between the fitting cover and the heating plate. A stabilizing tube is provided on the body, and the stabilizing tube is communicated with the negative pressure space.

8. A process for laminating a film using the automatic laminating device according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1, the first winding roller is driven by a motor to rotate, thereby pulling and rewinding the protective paper of the PI film, and stops pulling when the pulling length reaches a suitable length; S2, the lifting seat and slitting knife of the cutter assembly move downward to cut the upper PI film while keeping the PI film protective paper intact; S3, the mobile cage descends under the drive of the driving mechanism and is attached to the PI film through the support net; S4, the negative pressure pipe forms negative pressure in the mobile cage under the action of the suction pump; S5, move the net box upward to separate the PI film from the protective paper, and at the same time make the PI film adhere to the support net; S6, the mobile cage is moved horizontally to the top of the FPC film; S7, the protective paper of the FPC film is wound on the third winding roller, and at the same time the second winding roller rotates, pulling the FPC film to be laminated with the PI film onto the heating plate; S8, heating the heating plate to increase the temperature of the FPC film; S9, after moving the mesh box to align the angle and position of the PI film and the FPC, lower the height so that the PI film fits on the FPC film; S10, the negative pressure of the mobile net box disappears and rises, the second winding roller winds up the FPC film with the PI film attached, and pulls the downstream FPC film to a suitable position.

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