Cutting and winding device

The utility model discloses a cut-off winder, and belongs to the technical field of polyimide film winding. Comprising a platform, a first supporting column, a second supporting column and a third supporting column are sequentially and fixedly connected to the top of the platform from left to right, a sliding groove is formed in the first supporting column, a sliding plate is slidably connected to the side wall of the sliding groove, a threaded column is fixedly connected to the side wall of the sliding plate, a blocking piece is arranged on the circumferential outer wall of the threaded column, and a locking piece is arranged on the side wall of the blocking piece; a sliding column is in sliding fit in the top plate. According to the film winding device, the roller is arranged to rotate reversely to be matched with the bristles, the upward-pushing sliding seat and the downward-pressing sliding plate, so that a film can be tensioned when the film is wound by the winding shaft, the wound film is smoother, and