| 摘要 |
PROBLEM TO BE SOLVED: To provide a molding method of a resin molded product capable of suppressing the obstruction of expansion of a blow molded object, and a molding apparatus of the resin molded product. SOLUTION: After a foamable resin 31 is injected in the hollow blow-molded object 23 formed by the blow molding of a parison, the core part of a mold 10 is moved by predetermined quantity in a mold opening direction so as to magnify the volume of the cavity of the mold and the foaming of the foamable resin is accelerated to expand the blow-molded object 23 to mold the resin molded product. Before or after the start of the movement of the core part 13, a separation part 23b is formed to the part 23a to be stretched accompanied by the expansion of the blow-molded object 23 of the blow-molded object 23. COPYRIGHT: (C)2009,JPO&INPIT |
