PARISON CONTROLLER IN HOLLOW MOLDING MACHINE
Document Type and Number:
Japanese Patent JP2604076
PURPOSE: To reduce a size, save a resource, and obtain a high-quality parison by a method wherein a core for forming a delivery port for delivering a parison is moved through a motor.
CONSTITUTION: In a parison controller of a hollow molding machine in which the wall thickness of a parison extruded from a delivery port 5 is changed by vertically moving a core 6 forming the delivery port 5 provided in a die 3 of a parison cross head 1 of the hollow molding machine, the core 6 is moved through a motor 22.
January 29, 1997
October 01, 1991
JAPAN STEEL WORKS LTD:THE
B29B11/10; B29C49/04; B29C49/42; B29C49/78; B29L22/00; (IPC1-7): B29C49/42; B29B11/10; B29C49/04; B29C49/78