Blow molding die head, equipment for blow molding, the manufacturing method of uneven thickness parison forming method and profiled products

摘要

PROBLEM TO BE SOLVED: To provide a die head for blow molding capable of simply forming a profile molding.;SOLUTION: The die head for blow molding is provided with a die head body, an annular die positioned at an end of the die head body, and a core inserted into the die head body. A nozzle opening is formed for ejecting an annular parison by the die and the core at an opening of the die. The die head body has a supporting part for supporting the die at an inner periphery of the die. The die is supported by the supporting part at the inner periphery of the die so as to be displaced back and forth and inclined relatively to a parison-ejecting direction of the die body. A thickness in a circumferential direction of the nozzle opening can be adjusted by displacing the die back and forth relatively to a parison-ejecting direction of the die head, and a thickness in a circumferential direction of the nozzle opening can be unevenly adjusted by inclining the die relatively to a parison-ejecting direction of the die head.;COPYRIGHT: (C)2013,JPO&INPIT