DIE HEAD OF HOLLOW MOLDING MACHINE

摘要

PURPOSE: To obtain a parison having a large diameter by reducing the force F required in the adjustment of the width (wall thickness) of a die slit by moving the core of a die head up and down by a hydraulic cylinder. CONSTITUTION: The cylindrical part 11 concentric to a core 8 is formed on the core side of a core support 7 and the cylindrical part 12 concentric to the core support 7 is formed on the core support side of the core 8 and the inner peripheral wall of the cylindrical part 12 of the core 8 is fitted to the outer peripheral wall of the cylindrical part 11 of the core support 7 in a slidable manner.