Needle removing device of polyimide film stretcher

The utility model provides a needle releasing device of a polyimide film stretcher. The needle releasing device comprises two bases symmetrically arranged on the two sides of a film conveying track, and a needle raising mechanism and a traction mechanism which are erected on the bases front and back, the needle raising mechanism comprises a needle removing roller seat capable of moving relative to the transverse pulling oven, a needle removing roller support is installed on the needle removing roller seat, bearing seats are longitudinally installed on the needle removing roller support in a sliding mode, and the two ends of a needle removing roller are rotationally connected to the bearing seats on the two sides respectively; two traction seats of the traction mechanism are respectively mounted on the bases on the two sides, and the two ends of a traction roller are respectively rotationally connected to the traction seats on the two sides. According to the scheme, the film can be stably separated from the pi