Abstract: A winding core tube with a uniformly rough surface including a rotary barrel is provided. A circular through hole is provided at the inner side of the rotary barrel, a rotating sleeve is fixedly connected at the circular through hole of the rotary barrel, a circular through hole is provided at the outer side of the rotating sleeve, a connecting shaft is fixedly connected at the circular through hole of the rotating sleeve, the length of the connecting shaft is larger than that of the rotary barrel, and sprayed particles are sprayed on the outer side of the rotary barrel.

Abstract: Disclosed is a winding core tube with a uniformly rough surface, including a rotary barrel. A circular through hole is provided at the inner side of the rotary barrel, a rotating sleeve is fixedly connected at the circular through hole of the rotary barrel, a circular through hole is provided at the outer side of the rotating sleeve, a connecting shaft is fixedly connected at the circular through hole of the rotating sleeve, the length of the connecting shaft is larger than that of the rotary barrel, and sprayed particles are sprayed on the outer side of the rotary barrel.

Abstract: A spool includes a tube for winding a material. The outer surface of the tube is provided with a step portion along the axial direction thereof. The step portion is as high as the thickness of the material. A cutting groove is provided on a side, close to the axial centre of the tube, of the step portion. A resilient clip for clamping the material is fixed in the cutting groove, the upper end of the resilient clip is connected to a notch on one side of the cutting groove, and the lower end thereof is inclined towards the other side of the cutting groove. The spool positions a cutter by means of the cutting groove, and the resilient clip clamps the cut material in the cutting groove.