The whole machine is composed of feeding device, extruder main machine, mold, unwinding mechanism, composite mechanism, winding mechanism, edge position control device, trimming device, heating and cooling system, electrical measurement and control system and so on. According to the needs of different products, a second unwinding mechanism, a printing device, an oven, a substrate surface treatment device (corona machine, etc.), an online thickness gauge, and the like can be added. Front process equipment: granulator, printing machine or other equipment; downstream process equipment: slitting machine or other equipment.