Patent ID: 6220842
Filing Date: 2001-04-24
Classification: B29C

Abstract:
A production apparatus of expansion-molded articles, comprising a mold equipped with a feeder for filling foamed particles into the mold having a through-hole through which the foamed particles can pass, and a compressed-air ejection nozzle opening toward the mold, by which foamed particles contained in a hopper are filled into the mold through a transfer pipe connecting the hopper to the through-hole of the feeder by ejecting compressed air from the compressed-air ejection nozzle and then heated to expand them, and the foamed particles thus expanded are then cooled, thereby producing an expansion-molded article, wherein the apparatus is equipped with a compressed-air discharge orifice disposed on the inner surface of the transfer pipe and opening toward the foamed particle filling side of the apparatus in the course of the foamed-particle transfer pipe connecting the hopper to the inlet of the feeder.