MANUFACTURE OF GRADUALLY CHANGED ROLL MOLDING

摘要

PURPOSE: To provide the manufacture of a gradually changed roll molding which can be manufacture by one continuous production line. CONSTITUTION: A first gradually changed end section which is at least quite necessary to form a gradually changed side periphery, is so designed as to be formed by stripping a needless section 20 along a first groove formed in a first groove molding process B by a first stripping process E, and it is so designed that at least the first groove molding process B and the first stripping process E are carried out continuously together with the roll molding process A by making use of the feed of a plate material or a finished product 15 in a roll molding process A.