Traction and winding device for PET (Polyethylene Terephthalate) film processing

The utility model discloses a PET (polyethylene terephthalate) film processing traction winding device which comprises an equipment box and a film body, a motor and an air pump are arranged in the equipment box, the film body extends out of a discharging machine, a controller and a tension adjusting device are arranged on the surface of the equipment box, and the tension adjusting device comprises a second tension roller fixedly connected to the surface of the equipment box. A first tension roller and a third tension roller which are symmetrical with the second tension roller as the center line are arranged on the outer side of the second tension roller, one ends of the two third tension rollers are fixedly connected with the outer wall of the equipment box, and an output shaft of a motor in the equipment box penetrates through the equipment box and is fixedly connected with a supporting cylinder. The arc-shaped contour of the supporting cylinder is sleeved with a paper tube used for winding the thin film bod