High-precision glass adhesive film attaching equipment

Abstract

The utility model relates to high-precision glass adhesive film attaching equipment which comprises an unwinding unit, an edge cutting unit, a glass conveying unit, a film laminating unit and a film clamping unit which are sequentially arranged along a first horizontal shaft, the film covering unit is located above the glass conveying unit and can move along a first horizontal shaft. The glass conveying unit comprises a synchronous belt line for conveying glass along a second horizontal shaft and restoration assemblies arranged in the front, back, left and right directions of the synchronous belt line, and the second horizontal shaft is perpendicular to the first horizontal shaft. The high-precision glass adhesive film attaching equipment can accurately adjust the relative position of the adhesive film and the glass, so that the edges of the adhesive film and the glass are uniformly spaced, and the surface is free of wrinkles.

Description

TECHNICAL FIELD

[0001] The utility model relates to a film pasting technical field, especially in a kind of glass adhesive film high-precision attaching equipment. BACKGROUND

[0002] In the solar module manufacturing process, sometimes need to lay adhesive film on one side of glass. Adhesive film is attached to the vast majority of the position in the middle of glass, so that the non-overlapping gap between the two is small and uniform. The raw material of adhesive film is flexible roll stock, and its easy deformation characteristics will bring great difficulty to the accuracy of attachment, because there can be no stretching deformation along the surface, no wrinkles, no directional deviation, and the left-right direction gap and the front-back direction gap are uniform. The larger the adhesive film, the more difficult the film covering.

[0003] Chinese patent CN220549261U discloses a film pasting machine for photovoltaic module, which can place photovoltaic module by platform module, complete film pasting by movement of platform module relative to film pasting module, and film pasting module is provided with multiple modules side by side, so a large number of adhesive films can be pasted at one time, instead of pasting a large adhesive film on the whole surface, and the difficulty of precision control is completely different, which cannot meet the laying requirements of large-area adhesive film.

[0004] Therefore, it is necessary to design a new adhesive film pasting equipment to solve the above problems. SUMMARY

[0005] The main purpose of the utility model is to provide a kind of glass adhesive film high-precision attaching equipment, the relative position of adhesive film and glass can be accurately adjusted, so that the edge interval of the two is uniform, and the surface is wrinkle-free.

[0006] The utility model realizes the above-mentioned purpose by the following technical scheme: a kind of glass adhesive film high-precision attaching equipment, including unwinding unit, edge cutting unit, glass conveying unit, film covering unit and film clamping unit, the unwinding unit, the edge cutting unit, the glass conveying unit and the film clamping unit are sequentially arranged along the first horizontal shaft, and the film covering unit is located above the glass conveying unit and can move along the first horizontal shaft;The glass conveying unit includes synchronous belt line for conveying glass along the second horizontal shaft and normalizing assembly arranged in the front, back, left and right four directions of the synchronous belt line, and the second horizontal shaft is perpendicular to the first horizontal shaft.

[0007] Specifically, the edge cutting unit includes an edge cutting bracket, a traction roller set arranged in the middle of the edge cutting bracket, and a disc cutter arranged on both sides of the edge cutting bracket for cutting off the excess width of the adhesive film on both sides, the disc cutter presses the adhesive film on one roller surface in the traction roller set to realize the slitting of the adhesive film along the conveying direction, and the positions of the two disc cutters relative to the edge cutting bracket in the second horizontal axis direction are adjustable.

[0008] Further, the feeding side of the trimming support is provided with a first deviation correction inductor, the unwinding unit and the trimming unit adjust the relative position along the second horizontal axis according to the detection signal of the first deviation correction inductor; the discharging side of the trimming support is provided with a second deviation correction inductor, the position of the unwinding unit and the trimming unit as a whole along the second horizontal axis relative to the glass conveying unit is adjusted according to the detection signal of the second deviation correction inductor.

[0009] Specifically, the alignment assembly includes two side alignment mechanisms respectively arranged on the two sides of the synchronous belt line, a front alignment mechanism arranged in the discharging direction of the synchronous belt line, and a rear alignment mechanism arranged in the feeding direction of the synchronous belt line, the number of the front alignment mechanism and / or the rear alignment mechanism is two, the side alignment mechanism has a transverse alignment wheel moving along the first horizontal axis, and the front alignment mechanism and the rear alignment mechanism have a longitudinal alignment wheel moving along the second horizontal axis and ascending and descending.

[0010] Further, the feeding direction side of the film feeding roller assembly is also provided with a third deviation correction inductor for detecting the position of the side edge of the adhesive film, and the information obtained by the third deviation correction inductor is used to control the front alignment mechanism and the rear alignment mechanism to adjust the position of the glass.

[0011] Specifically, the upper side of the glass conveying unit is provided with a pair of slide rails and a rack respectively extending along the first horizontal axis, the film coating unit includes a film coating carriage sliding along the slide rails, a walking motor arranged on the film coating carriage, a film feeding roller assembly arranged in the film coating carriage, and a cutter mechanism arranged on the discharging side of the film feeding roller assembly, and the walking motor drives a gear meshing with the rack.

[0012] Further, the film feeding roller assembly includes a driving roller group and a driven roller group arranged in parallel, and further includes a film feeding motor driving the driving roller group to rotate around the second horizontal axis, and two film pressing cylinders driving the driven roller group to move towards the driving roller group, and each film pressing cylinder is provided with an inductor detecting the local distance between the driving roller group and the driven roller group on the side of the film pressing cylinder, and the inductor controls the extension and retraction of the film pressing cylinder closest to it.

[0013] Further, the film feeding roller assembly includes a glue guide plate and an encoder on the feeding side of the driving roller group, the glue guide plate guides the adhesive film to pass through the gap between the driving roller group and the driven roller group, and the encoder presses the adhesive film on the glue guide plate to detect the moving speed of the adhesive film relative to the glue guide plate, and then controls the rotating speed of the walking motor and the rotating speed of the film feeding motor.

[0014] Furthermore, the driven roller assembly has a forward spiral groove and a reverse spiral groove on its roller surface, and the forward spiral groove and the reverse spiral groove are symmetrically arranged on the left and right sections of the driven roller assembly.

[0015] Specifically, the film clamping unit includes a translation mechanism, a fixed shaft, a rotary servo motor, and several pneumatic clamps. The translation mechanism drives the fixed shaft to move along a first horizontal axis, the axial direction of the fixed shaft is along a second horizontal axis, the rotary servo motor drives the fixed shaft to rotate around the second horizontal axis, and the pneumatic clamps are arranged side by side on the same side of the fixed shaft along the second horizontal axis.

[0016] The beneficial effects of this utility model's technical solution are:

[0017] This high-precision glass film application equipment can precisely adjust the relative position of the film and the glass, thereby ensuring uniform edge spacing and a wrinkle-free surface. Attached Figure Description

[0018] Figure 1 This is a top view of the high-precision glass film application equipment in the embodiment;

[0019] Figure 2 for Figure 1 A magnified view of a portion of position A in the middle;

[0020] Figure 3 This is a three-dimensional diagram showing the positional relationship between the traction roller assembly and the disc cutter.

[0021] Figure 4 A three-dimensional view of the glass conveying unit;

[0022] Figure 5 A three-dimensional view of the glass conveying unit and the coating unit when the glass is just placed in place;

[0023] Figure 6 for Figure 5 A magnified view of a portion of position B in the middle;

[0024] Figure 7 A three-dimensional view of the glass conveying unit and the coating unit when the adhesive film is fully extended;

[0025] Figure 8 A three-dimensional view of the glass conveying unit and the coating unit during the film cutting process;

[0026] Figure 9 This is a diagram showing the positional relationship between the film feeding roller assembly and the cutting mechanism.

[0027] The numbers in the diagram represent:

[0028] 1- High-precision glass film application equipment

[0029] 11-Unwinding unit;

[0030] 12-Edge trimming unit, 121-Edge trimming bracket, 122-Traction roller group, 123-Disc cutter, 124-First correction sensor, 125-Second correction sensor;

[0031] 13-Glass conveying unit, 131-Synchronous belt, 132a-Side alignment mechanism, 132b-Front alignment mechanism, 132c-Rear alignment mechanism;

[0032] 14-Laminating unit, 141-Laminating carriage, 142-Travel motor, 143-Film feeding roller assembly, 1431-Driven roller group, 1432-Driven roller group, 14321-Forward spiral groove, 14322-Reverse spiral groove, 1433-Film feeding motor, 1434-Film pressing cylinder, 144-Cut mechanism, 145-Gear, 146-Glue guide plate, 147-Encoder, 148-Third correction sensor

[0033] 15-Clothing clamping unit, 151-Translation mechanism, 152-Fixed shaft, 153-Rotary servo motor, 154-Pneumatic clamp,

[0034] 16-Slide rail,

[0035] 17-Rack;

[0036] 2-Glass;

[0037] 3- Adhesive film. Detailed Implementation

[0038] The present invention will be further described in detail below with reference to specific embodiments.

[0039] Example:

[0040] like Figure 1 As shown, the present invention provides a high-precision glass film application device, which includes an unwinding unit 11, an edge-cutting unit 12, a glass conveying unit 13, a film-coating unit 14, and a film-clamping unit 15. The unwinding unit 11, the edge-cutting unit 12, the glass conveying unit 13, and the film-clamping unit 15 are arranged sequentially along a first horizontal axis. The film-coating unit 14 is located above the glass conveying unit 13 and can move along the first horizontal axis.

[0041] The trimming unit 12 can detect the left and right position and lead-out direction of the film 3 when it leaves the unwinding unit 11. The unwinding unit 11 has an unwinding roller whose position can be adjusted along the second horizontal axis. The left and right position and lead-out direction of the film 3 can be adjusted by adjusting the position of the unwinding roller, thereby meeting the positional accuracy of the film 3 when it reaches the coating unit 14.

[0042] like Figure 2 and Figure 3The trimming unit 12 includes a trimming support 121, a traction roller set 122 arranged at the middle of the trimming support 121, disc cutters 123 arranged at both sides of the trimming support 121 and used to trim the excess width of the adhesive film 3, a first deviation correction inductor 124 arranged at the feeding side of the trimming support 121, and a second deviation correction inductor 125 arranged at the discharging side of the trimming support 121. The relative position of the unwinding unit 11 and the trimming unit 12 along the second horizontal axis is adjusted according to the detection signal of the first deviation correction inductor 124, and the position of the unwinding unit 11 and the trimming unit 12 as a whole relative to the glass conveying unit 13 along the second horizontal axis is adjusted according to the detection signal of the second deviation correction inductor 125. The positions of the two disc cutters 123 relative to the trimming support 121 in the direction of the second horizontal axis are adjustable.

[0043] The traction roller set 122 is used to clamp and pull the adhesive film 3 to move, and the disc cutters 123 press the adhesive film 3 on the surface of one of the traction roller set 122 to achieve slitting of the adhesive film 3 in the conveying direction, so that the excess width is trimmed. The adhesive film 3 discharged from the unwinding unit 11 has an original width, which exceeds the width of the glass 2, so the adhesive film 3 needs to be trimmed on both sides to the designed width by the disc cutters 123 before being attached to the glass 2. The distance between the two disc cutters 123 is fixed, which corresponds to the designed width of the adhesive film 3. Before slitting, the first deviation correction inductor 124 is used to confirm the initial boundary of the adhesive film 3, so that after trimming, not only the width of the adhesive film 3 meets the attachment requirements, but also the boundary is at the appropriate position. However, the direction of the adhesive film 3 also needs to be considered during movement to avoid its own deviation, so the second deviation correction inductor 125 is used to sense the direction of the adhesive film 3, so as to ensure that the edge direction is parallel to the second horizontal axis, and the edge of the adhesive film 3 cannot be aligned with the edge of the glass 2.

[0044] As shown in Figure 2 The glass conveying unit 13 includes a synchronous belt line 131 for conveying the glass along the second horizontal axis, and a correction assembly arranged in front of and behind the synchronous belt line 131 in four directions. The second horizontal axis is perpendicular to the first horizontal axis. The correction assembly includes two side correction mechanisms 132a arranged on both sides of the synchronous belt line 131, a front correction mechanism 132b arranged in the discharging direction of the synchronous belt line 131, and a rear correction mechanism 132c arranged in the feeding direction of the synchronous belt line 131. The number of the front correction mechanism 132b and / or the rear correction mechanism 132c is two. The side correction mechanism 132a has a transverse correction wheel moving along the first horizontal axis. The front correction mechanism 132b and the rear correction mechanism 132c have longitudinal correction wheels moving along the second horizontal axis and ascending and descending.

[0045] Because the first horizontal axis of the glass conveying unit 13 has been occupied by the edge cutting unit 12 and the film clamping unit 15 at both ends, the synchronous belt line 131 has to convey the glass 2 from the second horizontal axis. The rubber film is fed to the glass 2 along the lateral direction. The two lateral centering mechanisms 132a are synchronously and reversely moved to center the glass 2 in the lateral direction, while the front centering mechanism 132b and the rear centering mechanism 132c can flexibly adjust the longitudinal position of the glass 2 to adapt to the feeding position of the rubber film 3. At least one of the front centering mechanism 132b and the rear centering mechanism 132c is two, so that a side of the glass 2 can be determined by two points on the same side during the centering process, and the angle of the glass 2 is determined. Because the feeding and discharging directions of the glass 2 pass through the front centering mechanism 132b and the rear centering mechanism 132c, the longitudinal centering wheel has to be lowered below the conveying surface of the synchronous belt line 131 during the translation of the glass 2, and then raised when the longitudinal centering starts, and the centering is completed by moving along the second horizontal axis. The two lateral centering wheels do not interfere with the translation of the glass 2 before clamping, so they only need to be able to move along the first horizontal axis.

[0046] As shown in Figures 5 to 8 , the top of the glass conveying unit 13 is provided with a pair of slide rails 16 and a rack 17 extending along the first horizontal axis respectively, the film covering unit 14 includes a film covering carriage 141 sliding along the slide rails 16, a walking motor 142 provided on the film covering carriage 141, a film feeding roller assembly 143 provided in the film covering carriage 141, and a cutter mechanism 144 provided on the discharging side of the film feeding roller assembly 143, the walking motor 142 drives a gear 145 engaged with the rack 17.

[0047] When the walking motor 142 drives the gear 145 to rotate, the film covering carriage 141 slides along the slide rails 16 through the cooperation with the rack 17. During the feeding and flattening of the rubber film 3, the film covering unit 14 realizes walking along the first horizontal axis by the cooperation of the gear 145 and the rack 17. During the feeding of the rubber film 3, the film feeding roller assembly 143 only clamps the front section of the rubber film 3 and then moves to the film clamping unit 15 side. During the flattening of the rubber film 3, the film feeding speed of the film feeding roller assembly 143 is the same as the translation speed of the film covering carriage 141, and the directions are opposite, so that the rubber film 3 will not be deformed when being flattened. This helps to ensure the position accuracy of the rubber film 3 and the glass 2 on the first horizontal axis. When the film covering carriage 141 moves back by a set length, the cutter mechanism 144 cuts off the rubber film 3, so that the rubber film 3 of the set length is left on the glass 2.

[0048] As shown in Figure 6As shown, the film clamping unit 15 includes a translation mechanism 151, a fixed shaft 152, a rotating servo motor 13, and a plurality of pneumatic clamps 154. The translation mechanism 151 drives the fixed shaft 152 to move along a first horizontal axis, the fixed shaft 152 is axially along a second horizontal axis, the rotating servo motor 13 drives the fixed shaft 152 to rotate around the second horizontal axis, and the pneumatic clamps 154 are arranged side by side on the same side of the fixed shaft 152 along the second horizontal axis.

[0049] The translation mechanism 151 can move the pneumatic clamps 154 closer to and farther away from the glass conveying unit 13. The pneumatic clamps 154 can swing around a horizontal axis. When the swing angle is maximum, the front part of the film 3 can be received, and then a plurality of points of the front part of the film 3 can be clamped. When the swing angle is minimum, the film 3 is close to the upper surface of the glass 2, and the film 3 will fall on the glass 2 under the action of gravity at a position slightly far from the pneumatic clamps 154.

[0050] As shown, Figure 9 The film conveying roller assembly 143 includes a driving roller set 1431 and a driven roller set 1432 arranged in parallel, a film conveying motor 1433 driving the driving roller set 1431 to rotate around a second horizontal axis, and two film pressing air cylinders 1434 driving the driven roller set 1432 to move towards the driving roller set 1431. Each film pressing air cylinder 1434 is provided with a sensor 148 detecting the local distance between the driving roller set 1431 and the driven roller set 1432, and the sensor 148 controls the extension and retraction of the film pressing air cylinder 1434 closest to it.

[0051] The gap height between the driving roller set 1431 and the driven roller set 1432 can be controlled by the two film pressing air cylinders 1434, and the film 3 can pass through the gap. When the gap height is large, the film 3 can be manually passed through the gap, and the film pressing air cylinders 1434 can reduce the gap height until the driving roller set 1431 and the driven roller set 1432 are pressed against the front and back surfaces of the film 3. When the driving roller set 1431 starts to rotate, the driven roller set 1432 will rotate in the opposite direction through the friction force of the two surfaces of the film 3. Although theoretically the driving roller set 1431 and the driven roller set 1432 are in parallel relationship, the film 3 itself may have a slight problem of uneven thickness, and the tension is sensitive to the change in thickness, that is, the thick position will be conveyed too fast due to excessive clamping force, and the thin position will be conveyed normally, which will cause the film 3 to be deviated to the side with smaller thickness. In order to avoid this problem, the film pressing air cylinder 1434 corresponding to the position with larger film thickness will be appropriately loosened, so that the film 3 can automatically release stress and maintain its conveying direction.

[0052] As shown, Figure 9As shown, the roller surface of the driven roller set 1432 is provided with forward helical grooves 14321 and reverse helical grooves 14322, which are symmetrically arranged on the left and right sections of the driven roller set 1432.

[0053] During the rotation of the driven roller set 1432, the forward helical grooves 14321 and the reverse helical grooves 14322 can exert forces on the two sides of the adhesive film 3, thereby ensuring that the adhesive film 3 is flattened.

[0054] As shown, Figure 9 The film feeding roller assembly 143 includes a guide plate 146 and an encoder 147 on the feeding side of the driving roller set 1431, the guide plate 146 guides the adhesive film 3 to pass through the gap between the driving roller set 1431 and the driven roller set 1432, and the encoder 147 presses the adhesive film 3 against the guide plate 146 to detect the moving speed of the adhesive film 3 relative to the guide plate 146, thereby controlling the rotation speed of the walking motor 142 and the rotation speed of the film feeding motor 1433. The feeding direction side of the film feeding roller assembly 143 is also provided with a third deviation correction inductor 148 for detecting the position of the side edge of the adhesive film 3, and the information obtained by the third deviation correction inductor 148 is used to control the front and rear correction mechanisms 132b and 132c to adjust the position of the glass 2.

[0055] During the reverse movement of the film feeding roller assembly 143 along the first horizontal axis, the adhesive film 3 will slide on the guide plate 146, and the encoder 147 will measure the sliding speed of the adhesive film 3 relative to the guide plate 146. The rotation speed of the walking motor 142 is proportional to the translation speed of the film covering carriage 141, and the rotation speed of the film feeding motor 1433 is proportional to the rotation speed of the driving roller set 1431. In order to avoid stretching the adhesive film 3 during the flattening process, the translation speed of the film covering carriage 141 and the linear speed of the surface of the driving roller set 1431 should both equal the pulling speed of the adhesive film 3, so the pulling speed of the adhesive film 3 needs to be measured by the encoder 147, and then the rotation speed of the walking motor 142 and the rotation speed of the film feeding motor 1433 are controlled, so that the adhesive film 3 has no rebound and the length accuracy of the adhesive film 3 after being attached is improved. The edge cutting unit 12 can only ensure that the direction of the adhesive film just pulled out of the unwinding unit 11 is relatively accurate, but in the case of deviation of the conveying direction after the adhesive film is received, the distance from the glass conveying unit 13 will cause the deviation to be amplified, and the position of the adhesive film cannot be adjusted by the edge cutting unit 12. Therefore, at the beginning of the flattening of the adhesive film 3 by the film feeding roller assembly 143, the third deviation correction inductor 148 detects the actual boundary position of the part of the adhesive film 3 that has been pulled out, and then adjusts the position by allowing the glass 2 to adapt to the position of the adhesive film, so that the position accuracy of the glass 2 and the adhesive film 3 can be ensured again.

[0056] The working process of the device is as follows: the adhesive film 3 is unwound from the unwinding unit 11, when passing through the trimming unit 12, the excess width part on the left and right sides of the adhesive film 3 is cut off by the disc cutter 123, and the left and right positions and the leading direction of the adhesive film 3 are adjusted under the joint monitoring of the first and second deviation correction inductors 124 and 125 until the adhesive film 3 enters the film feeding roller assembly 143 waiting on the side of the trimming unit 12, the film feeding roller assembly 143 clamps the head of the adhesive film 3; the glass 2 is brought to the center of the glass conveying unit 13 by the synchronous belt line 131, the two side alignment mechanisms 132a are close to each other, the glass 2 is transversely centered, the front and rear alignment mechanisms 132b and 132c adjust the glass 2 to stop at the appropriate position according to the signal obtained by the third deviation correction inductor 148, so that the center of symmetry of the glass 2 and the adhesive film 3 are in the same vertical plane, and the side gap between the adhesive film 3 and the glass 2 is uniform; then the film feeding roller assembly 143 moves forward along the first horizontal shaft while clamping the adhesive film 3, passes above the glass 2; the translational mechanism 151 makes the pneumatic clamp 154 approach the glass conveying unit 13 in advance, so that the pneumatic clamp 154 waits above the nearest side of the glass 2 in an open and upward state, and waits for the film feeding roller assembly 143 to send the head of the adhesive film 3 into the pneumatic clamp 154; the pneumatic clamp 154 clamps the head of the adhesive film 3, after the film feeding roller assembly 143 retreats, the fixed shaft 152 driven by the rotary servo motor 13 rotates through a very small angle, so that the pneumatic clamp 154 swings down and presses the part close to the head of the adhesive film 3 on the glass 2; while the film feeding roller assembly 143 retreats along the reverse direction of the first horizontal shaft, the driving roller assembly 1431 sends the adhesive film 3 forward, the retreat speed is equal to the forward speed, so that the adhesive film 3 is attached to the upper surface of the glass 2 without changing the tension, so as to avoid stress deformation of the adhesive film 3; after the film feeding roller assembly 143 returns to the initial position, the cutter mechanism 144 cuts the rear part of the adhesive film 3, so that the rear part of the adhesive film 3 falls and is attached to the glass 2, the other end of the pneumatic clamp 154 releases the head of the adhesive film 3 and then retreats forward, so that the head of the adhesive film 3 also falls and is attached to the glass 2, so that the entire adhesive film 3 is attached to the glass 2. The glass adhesive film high-precision attaching device can accurately adjust the relative position of the adhesive film 3 and the glass 2, so that the edge spacing of the two is uniform, and the surface is wrinkle-free.

[0057] The above only describes some embodiments of the present application. Those skilled in the art can make some modifications and improvements without departing from the inventive concept, which are all within the protection scope of the present application.

Claims

1. A high-precision glass adhesive film application device, characterized in that: The application relates to a glass film cutting and laminating device, which comprises a glass unwinding unit, a glass cutting unit, a glass conveying unit, a film laminating unit and a film clamping unit. The glass cutting unit comprises a cutting support, a traction roller group arranged in the middle of the cutting support and disc cutters arranged on both sides of the cutting support and used for cutting off the excess width of the film on both sides. The glass conveying unit comprises a synchronous belt line used for conveying the glass along a second horizontal axis and four normalizing assemblies arranged in front of, behind, left of and right of the synchronous belt line.

2. The glass adhesive film high-precision attaching apparatus according to claim 1, wherein: The positions of the two disc cutters in the direction of the second horizontal axis can be adjusted.

3. The glass adhesive film high-precision attaching apparatus according to claim 2, characterized in that: A first deviation correcting inductor is arranged on the feeding side of the cutting support, and the relative positions of the unwinding unit and the cutting unit along the second horizontal axis are adjusted according to the detection signals of the first deviation correcting inductor.

4. The glass adhesive film high-precision attaching apparatus according to claim 1, wherein: A pair of slide rails and a rack are arranged above the glass conveying unit and extend along the first horizontal axis.

5. The glass adhesive film high-precision attaching apparatus according to claim 4, characterized in that: A third deviation correcting inductor is arranged on the feeding direction side of the film conveying roller group and used for detecting the position of the side edge of the film.

6. The glass adhesive film high-precision attaching apparatus according to claim 4, wherein: The film conveying roller group comprises a driving roller group and a driven roller group arranged in parallel, a film conveying motor used for driving the driving roller group to rotate around the second horizontal axis and two film pressing cylinders used for driving the driven roller group to move towards the driving roller group. Each film pressing cylinder is provided with an inductor used for detecting the local distance between the driving roller group and the driven roller group. The inductor controls the extension and retraction of the film pressing cylinder closest to the inductor.

7. The glass adhesive film high-precision attaching apparatus according to claim 6, characterized in that: The film feeding roller assembly comprises a guide plate and an encoder on the feeding side of the driving roller group, the encoder presses the film on the guide plate to detect the moving speed of the film relative to the guide plate, and then controls the rotating speed of the walking motor and the rotating speed of the film feeding motor.

8. The glass adhesive film high-precision attaching apparatus according to claim 6, wherein: The roller surface of the driven roller group is provided with forward helical grooves and reverse helical grooves, and the forward helical grooves and the reverse helical grooves are symmetrically arranged on the left and right sections of the driven roller group.

9. The glass adhesive film high-precision attaching apparatus according to claim 1, wherein: The film clamping unit comprises a translation mechanism, a fixed shaft, a rotary servo motor and a plurality of pneumatic clamps, the translation mechanism drives the fixed shaft to move along a first horizontal shaft, the axial direction of the fixed shaft is along a second horizontal shaft, the rotary servo motor drives the fixed shaft to rotate around the second horizontal shaft, and the pneumatic clamps are arranged side by side on the same side of the fixed shaft along the second horizontal shaft.

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