发明名称 Method for stripping open ended bellows part from injection mold
摘要 A method for stripping a resilient bellows part from an injection mold has a step of injection molding a resilient bellows part around a colinear core pin and a stripper rod, surrounded by a split cavity. The bellows part has two open ends, one of which is substantially rigid and is closed by the stripper rod passing through it. The second open end is resilient. Another step opens the split cavity to permit the bellows part to be stripped from the core pin. Yet another step expands the bellows part radially outward from the core pin. Simultaneously with expanding the bellows part, a step of pushing the substantially rigid open end of the bellows part by the stripper rod causes the resilient portion and resilient open end to be stripped off the core pin. Finally, the substantially rigid open end of the bellows part is ejected from the stripper rod.
申请公布号 ZA9609487(B) 申请公布日期 1997.06.02
申请号 ZA19960009487 申请日期 1996.11.12
申请人 THE PROCTER & GAMBLE COMPANY 发明人 ROBERT JAMES PETERSON
分类号 B29C45/43;B29K21/00;B29L23/18 主分类号 B29C45/43
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