Winding apparatus, winding pin, and winding method

A winding pin, comprising:

• a main body portion having a winding-attaching surface on an outer periphery thereof;
• and
• a first cutter assembly comprising a plurality of first cutters, all the first cutters being disposed inside the main body portion, with a first channel formed between every two adjacent ones of the first cutters;
• wherein the main body portion is configured to be circumferentially rotatable about an axial direction thereof and to wind-attach a material onto the winding-attaching surface during rotation of the main body portion, and each of the first cutters is configured to be capable of cutting off the material within the first channel adjacent to the first cutter.

A winding method, comprising the following steps:

• controlling a main body portion of a winding pin at a winding position to circumferentially rotate about an axial direction of the main body portion to wind-attach a leading end of a material onto a winding-attaching surface on an outer periphery of the main body portion;
• controlling, after the winding-attaching by the winding pin at the winding position is completed, the winding pin at the winding position to exchange positions with a winding pin at a finishing position;
• and
• controlling a first cutter inside the winding pin that is at the winding position after the exchange to cut off a trailing end of the material located on the winding-attaching surface;
• wherein each of the winding pins comprises the main body portion and the first cutter located inside the main body portion.