Adhesive tape pasting device, mechanism and method for zero-tension double-faced adhesive tape pasting

An adhesive tape pasting method for zero-tension double-faced adhesive tape pasting, comprising an adhesive tape pasting preparation process S1, an adhesive tape opening process S2, an adhesive tape pasting process S3, and an adhesive tape cutting process S4;

• S1, the adhesive tape pasting preparation process:
• driving, by an unwinding electric motor, an unwinding station to unwind, driving, by a winding electric motor, a winding station to wind, controlling a difference between a torque of the unwinding electric motor and a torque of the winding electric motor to be less than a systemic resistance, and after a double-faced adhesive tape is tightened, gradually lowering the torque of the unwinding electric motor and the torque of the winding electric motor to enable the double-faced adhesive tape to be in a zero-tension state;
• S2, the adhesive tape opening process:
• setting the torque of the winding electric motor to an adhesive tape opening winding torque, setting the torque of the unwinding electric motor to an adhesive tape opening unwinding torque, driving, by the winding electric motor, the winding station to wind, driving, by the unwinding electric motor, the unwinding station to unwind, and controlling the winding station and the unwinding station to accelerate to a preset speed at a same acceleration;
• S3, the adhesive tape pasting process:
• driving, by a linear module, an adhesive tape pasting device to move on a foil at a linear speed to carry out adhesive tape pasting work, wherein in the adhesive tape pasting process, a linear speed of the unwinding station and a linear speed of the winding station are the preset speed which is the same as the linear speed of the linear module;
• and
• S4, the adhesive tape cutting process:
• controlling the linear module, the unwinding station and the winding station to decelerate at a same deceleration to rest, cutting, by a cutter, an adhesive tape, and at the same time when the cutter cuts the adhesive tape, driving, by the unwinding electric motor, the unwinding station to unwind at a torque which is not less than a cutting torque, wherein the cutting torque is a minimum torque at which the double-faced adhesive tape is not pulled out.