Glue sticking device, glue sticking mechanism and glue sticking method for double-sided adhesive zero tension glue sticking

Abstract

The invention discloses a gluing device, a gluing mechanism and a gluing method for zero-tension gluing of double-sided adhesive, belonging to a kind of foil gluing equipment, wherein the gluing device comprises a unwinding station, a rewinding station, a rewinding motor and a gluing component, after the unwinding station releases the double-sided adhesive and the adhesive tape of the double-sided adhesive is attached to the foil through the gluing component, the rewinding motor drives the rewinding station to rewind the remaining isolation paper of the double-sided adhesive; the invention also comprises an unwinding drive component, and the unwinding drive component drives the unwinding station to perform the unwinding work; in the gluing process, the unwinding work and the rewinding work are performed synchronously; the unwinding and unwinding servo configuration is further optimized, and a variety of working conditions are subdivided to achieve approximately zero-tension double-sided adhesive bonding, so that after gluing, the adhesive tape does not rebound or wrinkle, and the appearance of the foil and the adhesive tape is improved; thereby, the average stress of the entire width of the foil is improved, and the probability of tape breakage is reduced.

Description

Technical Field

[0001] The invention relates to foil gluing equipment, in particular to a gluing device, a gluing mechanism and a gluing method for double-sided adhesive zero-tension gluing. Background Art

[0002] The existing Chinese invention patent with publication number CN111113930A provides a clutch-type synchronous punching, gluing and cutting multifunctional gluing mechanism, which realizes the automated integrated functions of narrow and wide foil splicing, glue preparation, punching, gluing and cutting.

[0003] In the above technology, the winding station actively winds up the isolation paper, and uses the traction force of the double-sided adhesive tape on the unwinding station to allow the double-sided adhesive tape to be continuously released from the unwinding station. Since the double-sided adhesive tape is attached to the foil material under a certain traction force, after being left standing for a period of time, the double-sided adhesive tape will rebound and shrink, resulting in wrinkles in the foil material and poor appearance, so there is room for improvement. Summary of the invention

[0004] In order to overcome the deficiencies of the prior art, the present invention provides a gluing device, a gluing mechanism and a gluing method for zero-tension gluing of double-sided adhesive tape to solve the above-mentioned technical problems.

[0005] The technical solution adopted by the present invention to solve its technical problem is:

[0006] A gluing device for zero-tension gluing of double-sided adhesive tape, comprising an unwinding station, a rewinding station, a rewinding motor and a gluing assembly, wherein after the unwinding station releases the double-sided adhesive tape and the adhesive tape of the double-sided adhesive tape is attached to a foil material through the gluing assembly, the rewinding motor drives the rewinding station to rewind the remaining isolation paper of the double-sided adhesive tape;

[0007] It also includes an unwinding drive component, which drives the unwinding station to perform unwinding work; during the glue application process, the unwinding work and the winding work are performed synchronously.

[0008] By adopting the above technical solution, during the gluing process, the unwinding station performs active unwinding work, and the rewinding station performs active rewinding work, and an unwinding drive component and a rewinding motor are provided to keep the linear speed of the unwinding station and the rewinding station consistent during rotation, so as to ensure that the double-sided adhesive tape is attached to the foil material without being subjected to traction force;

[0009] The present invention provides an independent power source for the unwinding station, so that the double-sided adhesive tape will not be subjected to traction, thereby avoiding the problem of foil wrinkles and poor appearance caused by the rebound and shrinkage of the double-sided adhesive tape.

[0010] Preferably, it also includes a cutter assembly for cutting the tape after the adhesive application is completed, the cutter assembly includes a cutter and a driving cylinder for driving the cutter to perform a downward cutting operation, and the surface of the cutter is a multi-point bending surface.

[0011] By adopting the above technical solution, the cutting knife assembly is lifted or moved down by the propulsion and resetting of the driving cylinder, so that the cutting knife assembly can complete the tape cutting work; in addition, the junction of the bending surfaces of the cutting knife is a broken line transition, which makes the junction sharper. When the cutting knife cuts the tape, the tape is torn by the junction, so that the tape cutting work can be completed more quickly.

[0012] Preferably, the unwinding drive assembly includes an unwinding motor for driving the unwinding station to rotate, and a brake component.

[0013] By adopting the above technical solution, the unwinding motor is used to drive the unwinding station to rotate; the brake component can stop the unwinding station after the cutter assembly completes the tape cutting work, thereby preventing the double-sided tape from being excessively reeled into the unwinding station.

[0014] Preferably, the gluing assembly comprises a first gluing guide roller, a second gluing guide roller and a gluing head. After the double-sided tape is unwound from the unwinding station, it is sequentially guided to the bottom of the gluing head through the first gluing guide roller and the second gluing guide roller. The gluing head sticks the double-sided tape to the foil.

[0015] By adopting the above technical solution, both the first and second glue guide rollers play a guiding role, so that the double-sided tape can be placed under the glue head at a preset position and at a preset angle, and the glue head presses the tape down onto the foil while rolling on the foil.

[0016] Preferably, the invention also comprises a flattening sheet for pre-flattening the foil.

[0017] By adopting the above technical solution, the flattening pressing sheet is usually arranged in front of the moving direction of the gluing head, so that the foil is pressed down to be flat by the flattening pressing sheet before being glued, so as to achieve a better gluing effect and further avoid wrinkles in the foil after gluing.

[0018] A gluing mechanism for zero-tension gluing of double-sided adhesive tape comprises a control unit, a linear module and a gluing device as described in any one of the above technical solutions.

[0019] By adopting the above technical solution, the control unit is used to control the rotation speed of the unwinding motor and the winding motor. In the glue preparation process, the glue opening process, the glue application process and the glue cutting process, the unwinding motor and the winding motor use different torques to ensure that the unwinding station and the winding station have the same linear speed in the glue application process, so that the tape is attached to the foil with zero tension.

[0020] A method for applying double-sided adhesive tape with zero tension, comprising a process of preparing the adhesive tape S1, a process of opening the adhesive tape S2, a process of applying the adhesive tape S3, and a process of cutting the adhesive tape S4;

[0021] S1, adhesive laminating preparation process: the unwinding motor drives the unwinding station to rewind, and the rewinding motor drives the rewinding station to rewind, and the difference between the torque of the unwinding motor and the torque of the rewinding motor is controlled to be less than the system resistance, and after the double-sided adhesive is tightened, the torque of the unwinding motor and the torque of the rewinding motor are gradually reduced to make the double-sided adhesive in a zero tension state;

[0022] S2, glue unwinding process: set the rewinding motor to the glue unwinding torque, set the unwinding motor to the glue unwinding torque, the rewinding motor drives the rewinding station to rewind, and the unwinding motor drives the unwinding station to unwind, and the rewinding station and the unwinding station are accelerated to the preset speed with the same acceleration;

[0023] S3, gluing process: the linear module drives the placement device to move on the foil at a linear speed to perform gluing. During the gluing process, the linear speeds of the unwinding station and the winding station are both preset speeds, and the preset speed is the same as the linear speed of the linear module;

[0024] S4, adhesive cutting process: the linear module, unwinding station and rewinding station decelerate to a standstill at the same deceleration rate, the cutter cuts the tape, and while the cutter cuts the tape, the unwinding motor drives the unwinding station to rewind with a torque not less than the cutting torque, wherein the cutting torque is the minimum torque at which the double-sided adhesive tape is not pulled out.

[0025] Preferably, in step S1, the method for testing the system resistance is, when the glue laminating device is in a stationary state, setting a same initial torque for the winding motor and the unwinding motor, the winding motor drives the winding station to wind, and the unwinding motor drives the unwinding station to wind, and then gradually increasing the torque of the winding motor or the unwinding motor until the double-sided tape is just pulled, recording the unwinding torque of the unwinding motor and the winding torque of the winding motor at this time, and the difference between the unwinding torque and the winding torque is the system resistance.

[0026] Preferably, in step S2, the test method for the degumming winding torque and the degumming unwinding torque is that, when the gluing device is in a stationary state, the initial winding torque and the initial unwinding torque are respectively set for the winding motor and the unwinding motor, the winding motor drives the winding station to wind, and the unwinding motor drives the unwinding station to unwind, and the speed measuring tool is used to measure the relationship curves between the linear speed of the winding station and the unwinding station and the time, and the initial winding torque and the initial unwinding torque are adjusted to the relationship curves between the linear speed of the winding station and the unwinding station and the time are the same, and the winding torque at this time is recorded as the degumming winding torque, and the unwinding torque at this time is recorded as the degumming unwinding torque.

[0027] Preferably, in step S4, the test method of the cutting torque is to set an initial torque for the unwinding motor and reel in the unwinding station. When the cutter cuts the tape, if the double-sided tape is not pulled back by the cutter, the initial torque is gradually reduced until the double-sided tape is just pulled back by the cutter when the cutter cuts the tape. The torque of the unwinding motor at this time is recorded, which is the cutting torque.

[0028] The beneficial effects of the present invention are:

[0029] 1. The present invention provides an independent power source for the unwinding station, so that the double-sided adhesive tape will not be subjected to traction, thus avoiding the problem of foil wrinkles and poor appearance caused by the rebound and shrinkage of the double-sided adhesive tape;

[0030] 2. The intersection of the bending surface of the cutter is a broken line transition, which makes the intersection sharper. When the cutter cuts the tape, the tape is torn at the intersection, so that the tape cutting work can be completed more quickly;

[0031] 3. The brake component can stop the unwinding station after the cutter assembly completes the tape cutting work, preventing the double-sided tape from being excessively rewound into the unwinding station;

[0032] 4. The flattening press is usually set in front of the movement direction of the glue sticking head, so that the foil will be pressed down to be flat before being glued, so as to achieve a better glue sticking effect and further avoid wrinkles on the foil after glue sticking;

[0033] 5. Before gluing, the unwinding station and the rewinding station pull back the double-sided tape at the same time to make it in a relatively tensioned state. Otherwise, the double-sided tape will be in a relaxed state and attached to the foil, which will cause wrinkles on the tape attached to the foil. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0035] Figure 1 It is a structural schematic diagram of the glue sticking device in the present invention;

[0036] Figure 2 The present invention is a flowchart of the working conditions of the glue sticking method.

[0037] The descriptions of the reference numerals in the figures are as follows:

[0038] 1. Unwinding station; 2. Unwinding drive assembly; 201. Unwinding motor; 202. Brake parts; 3. Rewinding station; 4. Rewinding motor; 5. Cutter assembly; 501. Cutter; 502. Driving cylinder; 6. Gluing assembly; 601. Gluing guide roller 1; 602. Gluing guide roller 2; 603. Gluing head; 7. Flattening sheet. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the concept, specific structure and technical effects of the present invention in combination with the embodiments and drawings, so as to fully understand the purpose, characteristics and effects of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by technicians in this field without creative work are all within the scope of protection of the present invention. In addition, all the connection / connection relationships involved in the patent do not refer to the direct connection of components, but refer to the formation of a better connection structure by adding or reducing connection accessories according to the specific implementation situation. The various technical features in the invention can be combined interchangeably without conflicting with each other.

[0040] In ordinary glue sticking devices, only the rewinding station is active, while the unwinding station is passive. The rewinding station rewinds the double-sided tape and generates pulling force on the unwinding station, causing the double-sided tape to be continuously released from the unwinding station. Since the double-sided tape is attached to the foil under a certain traction force, it will rebound and shrink after being left still for a period of time, resulting in wrinkles on the foil and poor appearance.

[0041] In view of the above problems, the present invention provides a gluing device, a gluing mechanism and a gluing method for double-sided adhesive zero-tension gluing, which are respectively described as follows.

[0042] A double-sided adhesive zero-tension adhesive bonding device, such as Figure 1 As shown, it includes an unwinding station 1, a rewinding station 3, a rewinding motor 4 and a gluing assembly 6. After the unwinding station 1 releases the double-sided adhesive tape and the double-sided adhesive tape is attached to the foil material through the gluing assembly 6, the rewinding motor 4 drives the rewinding station 3 to rewind the remaining isolation paper of the double-sided adhesive tape.

[0043] The double-sided adhesive tape includes release paper and adhesive tape, and the winding motor 4 can be a conventional winding motor 4 , but any motor that can drive the winding station 3 to rotate is referred to as the winding motor 4 in the present invention.

[0044] The gluing device further comprises an unwinding drive assembly 2, which drives the unwinding station 1 to perform unwinding work; during the gluing process, the unwinding work and the rewinding work are performed synchronously.

[0045] During the gluing process, the unwinding station 1 performs active unwinding work, and the rewinding station 3 performs active rewinding work. The unwinding drive assembly 2 and the rewinding motor 4 are provided to keep the linear speeds of the unwinding station 1 and the rewinding station 3 consistent during rotation, thereby ensuring that the double-sided adhesive is attached to the foil without being subjected to traction.

[0046] The present invention provides an independent power source for the unwinding station 1, so that the double-sided adhesive tape will not be subjected to traction, thereby avoiding the problem of foil wrinkles and poor appearance caused by the rebound and shrinkage of the double-sided adhesive tape.

[0047] The glue sticking device also includes a cutter assembly 5 for cutting the adhesive tape after the glue sticking is completed. The cutter assembly 5 includes a cutter 501 and a driving cylinder 502 for driving the cutter 501 to perform a downward cutting operation. The driving cylinder 502 is used to push and reset the cutter assembly 5 to control the upward or downward movement of the cutter assembly 5, so that the cutter assembly 5 completes the tape cutting operation.

[0048] The surface of the cutter 501 is a curved surface with multiple sharp points; the junction of the curved surfaces of the cutter 501 is a broken line transition, making the junction sharper. When the cutter 501 cuts the tape, the tape is torn at the junction, thereby completing the tape cutting work more quickly.

[0049] The unwinding drive assembly 2 includes an unwinding motor 201 for driving the unwinding station 1 to rotate, and a brake member 202; the unwinding motor 201 is used to drive the unwinding station 1 to rotate; the brake member 202 can stop the unwinding station 1 after the cutter assembly 5 completes the tape cutting work, so as to prevent the double-sided tape from being excessively rolled into the unwinding station 1.

[0050] The gluing assembly 6 comprises a gluing guide roller 1 601, a gluing guide roller 2 602 and a gluing head 603. After the double-sided adhesive is unwound from the unwinding station 1, it is guided to the bottom of the gluing head 603 in sequence through the gluing guide roller 1 601 and the gluing guide roller 2 602. The gluing head 603 sticks the double-sided adhesive tape to the foil. The gluing guide roller 1 601 and the gluing guide roller 2 602 both play a guiding role, so that the double-sided adhesive can be placed under the gluing head 603 at a preset position and at a preset angle. The gluing head 603 presses the adhesive tape down onto the foil while rolling on the foil.

[0051] The gluing device also includes a flattening plate 7 for pre-flattening the foil. The flattening plate 7 is usually arranged in front of the movement direction of the gluing head 603, so that the foil will be pressed down to be flat by the flattening plate 7 before being glued, so as to achieve a better gluing effect and further avoid wrinkles in the foil after gluing.

[0052] Before starting to glue, the unwinding station 1 and the rewinding station 3 rewind at the same time to tighten the double-sided adhesive tape; before glue sticking, the unwinding station 1 and the rewinding station 3 pull back the double-sided adhesive tape at the same time to make the double-sided adhesive tape in a relatively tensioned state. Otherwise, the double-sided adhesive tape will be in a relaxed state and attached to the foil, which will cause wrinkles on the tape attached to the foil.

[0053] The present invention also provides a gluing mechanism for zero-tension gluing of double-sided adhesive tape, comprising a control unit and the gluing device mentioned above.

[0054] The control unit is used to control the rotation speed of the unwinding motor 201 and the winding motor 4. In multiple processes such as before gluing, starting gluing, during gluing, and cutting the tape, the unwinding motor 201 and the winding motor 4 provide the same linear speed for the unwinding station 1 and the winding station 3, ultimately allowing the double-sided tape to be attached to the foil with zero tension.

[0055] In order to match the above-mentioned gluing device and gluing mechanism for zero-tension gluing of double-sided adhesive tape, the present invention also provides a gluing method for the gluing device as follows.

[0056] A method for applying glue for double-sided adhesive zero-tension glue, characterized in that it comprises a glue preparation step S1, a glue opening step S2, a glue applying step S3, and a glue cutting step S4;

[0057] S1, adhesive laminating preparation process: the unwinding motor 201 drives the unwinding station 1 to rewind, and the rewinding motor 4 drives the rewinding station 3 to rewind, and the difference between the torque of the unwinding motor 201 and the torque of the rewinding motor 4 is controlled to be less than the system resistance, and after the double-sided adhesive is tightened, the torque of the unwinding motor 201 and the torque of the rewinding motor 4 are gradually reduced to make the double-sided adhesive in a zero tension tension state;

[0058] Step S1 is mainly to put the double-sided adhesive tape in a zero-tension tensioning state before pasting. The zero-tension tensioning state referred to in the present invention means that the double-sided adhesive tape is gradually tensioned from a relaxed state to a state just ready to have tension. It can also be said that it is a state where no wrinkles will appear even after being pasted on the foil for a period of time.

[0059] In step S1, the method for testing the system resistance is as follows: when the glue sticking device is in a stationary state, the same initial torque is set for the winding motor 4 and the unwinding motor 201, the winding motor 4 drives the winding station 3 to wind, and the unwinding motor 201 drives the unwinding station 1 to wind, and then the torque of the winding motor 4 or the unwinding motor 201 is gradually increased until the double-sided tape is just pulled, and the unwinding torque of the unwinding motor 201 and the winding torque of the winding motor 4 are recorded at this time. The difference between the unwinding torque and the winding torque is the system resistance.

[0060] S2, glue unwinding process: set the winding motor 4 to the glue unwinding torque, set the unwinding motor 201 to the glue unwinding torque, the winding motor 4 drives the winding station 3 to rewind, and the unwinding motor 201 drives the unwinding station 1 to unwind, and the winding station 3 and the unwinding station 1 are accelerated to the preset speed with the same acceleration;

[0061] Step S2 is mainly to ensure that no tension occurs in the double-sided adhesive tape during the process of accelerating the line speed of the winding station 3 and the unwinding station 1 to a preset speed.

[0062] In step S2, the testing method of the degumming winding torque and the degumming unwinding torque is as follows: when the gluing device is in a stationary state, the initial winding torque and the initial unwinding torque are set for the winding motor 4 and the unwinding motor 201 respectively, the winding motor 4 drives the winding station 3 to wind, and the unwinding motor 201 drives the unwinding station 1 to unwind, and the speed measuring tool is used to measure the relationship curves between the linear speed of the winding station 3 and the unwinding station 1 and time respectively, and by adjusting the initial winding torque and the initial unwinding torque to the relationship curves between the linear speed of the winding station 3 and the unwinding station 1 and time are the same, the winding torque at this time is recorded as the degumming winding torque, and the unwinding torque at this time is recorded as the degumming unwinding torque.

[0063] S3, gluing process: the linear module drives the placement device to move on the foil at a linear speed to perform gluing. During the gluing process, the linear speeds of the unwinding station 1 and the winding station 3 are both preset speeds, and the preset speeds are the same as the linear speed of the linear module;

[0064] The linear speed is the speed at which the adhesive head moves relative to the foil, and is also the speed at which the linear module is driven.

[0065] S4, adhesive cutting process: the linear module, unwinding station 1 and rewinding station 3 decelerate to a standstill at the same deceleration rate, the cutter 501 cuts the tape, and while the cutter 501 cuts the tape, the unwinding motor 201 drives the unwinding station 1 to rewind with a torque not less than the cutting torque, wherein the cutting torque is the minimum torque at which the double-sided adhesive tape is not pulled out, and the cutter 501 retreats after cutting the tape, and the brake member 202 stops the unwinding motor 201.

[0066] In step S4, the test method of the cutting torque is to set an initial torque for the unwinding motor 201 and rewind the unwinding station 1. When the cutter 501 cuts the tape, if the double-sided tape is not pulled back by the cutter 501, the initial torque is gradually reduced until the double-sided tape is just pulled back by the cutter 501 when the cutter 501 cuts the tape. The torque of the unwinding motor 201 at this time is recorded, which is the cutting torque.

[0067] The above is a specific description of the preferred implementation of the present invention, but the invention is not limited to the embodiments. Those skilled in the art can make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for applying double-sided adhesive tape with zero tension, using a double-sided adhesive tape with zero tension to implement the application, characterized in that: The gluing mechanism for zero-tension gluing of double-sided adhesive tape comprises a control unit, a linear module and a gluing device for zero-tension gluing of double-sided adhesive tape, wherein the gluing device for zero-tension gluing of double-sided adhesive tape comprises an unwinding station, a rewinding station, a rewinding motor and a gluing assembly, wherein after the unwinding station releases the double-sided adhesive tape and the adhesive tape of the double-sided adhesive tape is attached to the foil material through the gluing assembly, the rewinding motor drives the rewinding station to rewind the remaining isolation paper of the double-sided adhesive tape; It also includes an unwinding drive component, which drives the unwinding station to perform unwinding work; during the glue application process, the unwinding work and the rewinding work are performed synchronously; It also includes a cutter assembly for cutting the adhesive tape after the adhesive application is completed, the cutter assembly includes a cutter and a driving cylinder for driving the cutter to perform a downward cutting operation, the cutter surface is arranged as a multi-point bending surface, and the intersection of the cutter bending surface is a broken line transition; The unwinding drive assembly includes an unwinding motor and a brake member for driving the unwinding station to rotate; Also included is a flattening sheet for pre-flattening the foil; The glue laminating method comprises a glue laminating preparation step S1, a glue opening step S2, a glue laminating step S3, and a glue cutting step S4; S1, adhesive laminating preparation process: the unwinding motor drives the unwinding station to rewind, and the rewinding motor drives the rewinding station to rewind, and the difference between the torque of the unwinding motor and the torque of the rewinding motor is controlled to be less than the system resistance, and after the double-sided adhesive is tightened, the torque of the unwinding motor and the torque of the rewinding motor are gradually reduced to make the double-sided adhesive in a zero tension state; S2, glue unwinding process: set the rewinding motor to the glue unwinding torque, set the unwinding motor to the glue unwinding torque, the rewinding motor drives the rewinding station to rewind, and the unwinding motor drives the unwinding station to unwind, and the rewinding station and the unwinding station are accelerated to the preset speed with the same acceleration; S3, gluing process: the linear module drives the gluing device to move on the foil at a linear speed to perform gluing. During the gluing process, the linear speeds of the unwinding station and the winding station are both preset speeds, and the preset speed is the same as the linear speed of the linear module; S4, adhesive cutting process: the linear module, the unwinding station and the rewinding station decelerate to a standstill at the same deceleration rate, the cutter cuts the tape, and at the same time the cutter cuts the tape, the unwinding motor drives the unwinding station to rewind with a torque not less than the cutting torque, wherein the cutting torque is the minimum torque at which the double-sided adhesive tape is not pulled out; The test method of the system resistance is as follows: when the adhesive laminating device is in a stationary state, the same initial torque is set for the winding motor and the unwinding motor, the winding motor drives the winding station to wind, and the unwinding motor drives the unwinding station to wind, and then the torque of the winding motor or the unwinding motor is gradually increased until the double-sided adhesive tape is just pulled, and the unwinding torque of the unwinding motor and the winding torque of the winding motor at this time are recorded, and the difference between the unwinding torque and the winding torque is the system resistance; In step S2, the test method for the debonding winding torque and the debonding unwinding torque is as follows: when the gluing device is in a stationary state, the initial winding torque and the initial unwinding torque are respectively set for the winding motor and the unwinding motor, the winding motor drives the winding station to wind, and the unwinding motor drives the unwinding station to unwind, and the speed measuring tool is used to measure the relationship curves between the linear speed of the winding station and the unwinding station and the time, and the initial winding torque and the initial unwinding torque are adjusted to the relationship curves between the linear speed of the winding station and the unwinding station and the time are the same, and the winding torque at this time is recorded as the debonding winding torque, and the unwinding torque at this time is recorded as the debonding unwinding torque.

2. The method for laminating double-sided adhesive tape with zero tension according to claim 1, characterized in that: In step S4, the test method of the cutting torque is to set an initial torque for the unwinding motor and rewind the unwinding station. When the cutter cuts the tape, if the double-sided adhesive tape is not pulled back by the cutter, the initial torque is gradually reduced until the double-sided adhesive tape is just pulled back by the cutter when the cutter cuts the tape. The torque of the unwinding motor at this time is recorded, which is the cutting torque.

3. The method for laminating double-sided adhesive tape with zero tension according to claim 1, characterized in that: The glue sticking assembly comprises a glue sticking guide roller 1, a glue sticking guide roller 2 and a glue sticking head. After the double-sided adhesive is unwound from the unwinding station, it is sequentially guided to the bottom of the glue sticking head through the glue sticking guide roller 1 and the glue sticking guide roller 2. The glue sticking head sticks the double-sided adhesive tape to the foil material.

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