PARISON WALL THICKNESS ADJUSTMENT DEVICE AND PARISON WALL THICKNESS ADJUSTMENT METHOD

摘要

PROBLEM TO BE SOLVED: To provide a parison wall thickness adjustment device and a parison wall thickness adjustment method capable of reducing a derive mechanism and conducting wall thickness adjustment smoothly.;SOLUTION: In a die head supplying a cylindrical parison from a cyclic slit between a die and a core, a pair or pressurization mechanism pressing the die are arranged with facing each other and these pair pressurization mechanisms are controlled to be linked. Two pairs of pressurization mechanisms are arranged to be almost orthogonal each other. The pressurization mechanisms have hydraulic cylinder respectively, a head side of the hydraulic cylinder of facing pair of the pressurization mechanisms is communicated by a piping and these pairs of the pressurization mechanisms are drive by one circuit hydraulic unit.;SELECTED DRAWING: Figure 4;COPYRIGHT: (C)2018,JPO&INPIT