Polyimide film winding tension adjusting device

The utility model relates to the technical field of winding equipment, in particular to a polyimide film winding tension adjusting device which comprises a winding roller and an arch-shaped fixing groove plate, the arch-shaped fixing groove plate is located on the outer side of the winding roller, and the winding roller is close to the arch-shaped fixing groove plate. Two first tensioning rollers are arranged below the arch-shaped fixing groove plate, the positions of the two first tensioning rollers are staggered, and the heights of the two first tensioning rollers are different; one end of the thin film bypasses the two first tensioning rollers and is wound on the wind-up roller; tension is generated on the thin film in the conveying state, the thin film can be in a tightened state all the time conveniently, the thin film can be conveyed flatly and wound on the winding roller conveniently, the regularity of the thin film wound by the winding roller is improved, the phenomenon that the thin film deviates or