APPARATUS FOR VACUUM FORMING AND ITS METHOD

摘要

PURPOSE:To enable a molded product having an undercut part to be simply vacuum formed. CONSTITUTION:A sheet material is vacuum formed to be pinched by pressure between a top tool 2 and a bottom tool 3 of a vacuum forming apparatus 1. Further, an insert die 7 for molding an undercut part is protruded from a tool surface 4. An undercut part 20 is molded between the insert die 7 and an recess part 11 for molding the undercut opposed to the insert die 7.