A winder, an object that holds paper. It includes body and shaft. The device body comprises a left baffle, a right baffle and a wall plate. The left baffle and the right baffle are respectively provided with a mutually symmetrical chute, and the front end of the chute is higher than the rear end of the chute. The two ends of the device shaft are respectively connected with the sliding grooves on both sides of the device body by sliding or rolling, and the wall plate is provided with a boss parallel to the frame shaft. The paper jam structure is composed of a movable frame shaft structure combined with a slide way and a frame shaft and a boss on the frame body, so that the paper breaking process can be completed with one hand, and the use is very convenient.