发明名称 METHOD OF RELEASING MOLDING ITEM FROM MOLD
摘要 PURPOSE:To obviate the damage to a highly ornamental molded item due to the ejection of the molded item after the molding, and to eliminate the occurrence of a burr due to an eject pin boss, by molding ears integrally with side edges of the item, and ejecting the ears by ejection pins to release the item. CONSTITUTION:A resin is filled from a resin filling gate 3 to molds 1, 2 having a resin pool part 4 provided on the parting side away from the cavity surfaces to obtain the molded item A having the ears B, C integrally molded. Then the ejection pins 5, 5 mounted in the male mold are slidably ejected to eject the ears B, C extending from the molded item A itself to release the item A. This method is suitable for an article that should be highly ornamental such as an emblem, for example, a mark, ornament, lamp lens, cover, and the like.
申请公布号 JPS57185109(A) 申请公布日期 1982.11.15
申请号 JP19810070300 申请日期 1981.05.11
申请人 HASHIMOTO FORMING KOGYO KK 发明人 IWATA TAKAO;ICHIMURA MASANORI;TAMURA TATSUYA
分类号 B29B13/00;B29C33/42;B29C33/44;B29C41/00;B29C45/00;B29C45/26;B29C45/40 主分类号 B29B13/00
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