Automatic correction constant speed constant tension rewinding machine

Abstract

The invention relates to an automatic-deviation-rectification, constant-speed and constant-tension rewinding machine. A magnetic powder brake and a cantilever unwinding inflation shaft are mounted on a rack; an unwinding membrane passes through an unwinding force sensor roll and an unwinding guide roll, and is delivered into a membrane processing device to form an unwinding tension control device; a screw rod sliding table and a stepping motor are fixed on the rack; a variable frequency motor, a magnetic powder clutch and a cantilever winding inflation shaft are fixed on the surface of the screw rod sliding table; a winding membrane sequentially passes through a photoelectric position sensor, a winding force sensor roll and an encoder roll, and finally passes into the membrane processing device to form a device for controlling winding tension, winding speed, deviation rectification and the like; and an unwinding force, winding force and deviation rectification controller with a program-controlled preset value is utilized to control constant tension of the membrane, and to rectify deviation automatically. The programmable logic controller (PLC), a frequency converter and the variable frequency motor are arranged to control the transmission of the membrane at the constant speed. The machine achieves multifunctional control, solves the problems of high stress deformation, non-uniform viscosity, the deviation and the like, is high in quality and efficiency, simple, reasonable in design, and convenient to operate and maintain, and is particularly applicable to rewinding of a polytetrafluoroethylene adhesive tape coil.

Description

(1) Technical field [0001] The invention relates to a rewinding machine, in particular to a rewinding machine for producing polytetrafluoroethylene tapes in the tape and packaging industry. It belongs to the conveying category of thin materials (B65H). (2) Technical background [0002] The existing polytetrafluoroethylene adhesive tape product is to coat the silicone pressure-sensitive adhesive on the surface of the polytetrafluoroethylene raw material film through a film processing device after special treatment, and then make a polytetrafluoroethylene adhesive tape roll. Because PTFE has the most stable performance among all plastic products: non-toxic, acid-resistant, alkali-resistant, high-temperature resistant, dielectric-resistant, not easy to chemically react with other substances, and the coefficient of friction is extremely low, making it an ideal coating. It is known as the King of Plastics. It is its chemical stability that makes the material inert and difficult...

AI Technical Summary

Problems solved by technology

[0005] The automatic deviation-correction constant-speed constant-tension rewinder provided by the present invention is to solve the serious deformation, deviation, uneven adhesion, low pass rate, low production efficiency and inability to be used in poly-fours produced by existing rewinders. Fluorinated vinyl tape rolls, etc.

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