MOLDING DEVICE OF HOLLOW MOLDED BODY

摘要

PURPOSE:To mold efficiently and easily a hollow molded body superior in the quality, by a method wherein the title device can detect reliably a solidified state of molten resin filled into a cavity. CONSTITUTION:A cavity 18 is formed between a bottom force 14 and top force 16 constituting a mold 12, a gas injection device 26 is arranged in front of molten resin injection side of the cavity 18 and a detecting device 28 is provided at the rear of the cavity 18. The detecting device 28 is provided with a measuring pin 56 projecting into the cavity 18 and the measuing pin 56 is provided with a thermocouple 58 for detection of a temperature of the resin and a pressure sensor 60 for detection of pressure of the resin.