Multi-layer co-extrusion POF heat shrink film packaging machine

The utility model discloses a multi-layer co-extrusion POF heat shrink film packaging machine which comprises a base, second moving grooves are formed in the front end and the rear end of the right position of the center of the top of the base in a penetrating mode, second sliding blocks are connected into the second moving grooves in a sliding mode, and first sliding grooves are formed in the center positions of the left side and the right side of each second moving groove in a penetrating mode. A first moving groove is formed in the center of the top of the base in a penetrating mode, a third motor is fixedly connected to the lower left side of the top of the rear end of the inner wall of the fixing box, a transmission roller penetrates through and is fixedly connected to the output end of the third motor, and third air cylinders are fixedly connected to the transmission roller and the front and rear ends of the left side of the top of the inner wall of the fixing box; the bottom of the third air cylinder i