The utility model relates to a circular knife
machine beneficial to waste
discharge of
transparent adhesive tape, which comprises a feeding roller, a die-
cutting circular knife group, a pressing circular knife group and a receiving roller which are sequentially arranged, a film releasing roller is arranged above the feeding roller, an
adhesive releasing roller and an
adhesive receiving roller are arranged above the pressing circular knife group, the die-
cutting circular knife group comprises an upper die-
cutting circular knife and a lower die-cutting circular knife, and the die-cutting circular knife group comprises an upper die-cutting circular knife and a lower die-cutting circular knife. The upper
die cutting circular knife is provided with a plurality of cutters, the cutters are linear and define a
closed pattern, the material pressing circular knife set comprises an upper material pressing circular knife and a lower material pressing circular knife, the upper material pressing circular knife comprises a material pressing table with the same range as the
closed pattern structure, and the outer surface of the material pressing table is of a cambered
surface structure with the axis of the upper material pressing circular knife as the axis. According to the utility model, the whole waste glue range can be extruded by utilizing the material pressing circular knife group after the
die cutting circular knife group performs
die cutting, so that a waste glue film is adhered to a
cut protective film part and is removed by an
adhesive tape, and the residue of the waste glue film is avoided.