WIDTH CHANGING DEVICE OF CAP FILM BY APRON SHEET

摘要

PPROBLEM TO BE SOLVED: To provide a method for improving yield of resin and a product, and improving work efficiency, by allowing a product width to be easily varied, in cap film manufacture. PSOLUTION: As for a cap forming device for forming many dents (caps) in a plastic film 4 by vacuum molding, a cap film width changing device is characterized by including an apron sheet 11 for airtightly covering a vacuum suction hole group 2 which is held outside a molding roll 1 and sucked at the end of the molding roll, from the outside of the molding roll. PCOPYRIGHT: (C)2010,JPO&INPIT