Injection molding core ring gate system

更新时间:2023-05-24 14:31:09 阅读: 评论:0

专利名称:Injection molding core ring gate system 发明人:Gellert, Jobst Ulrich
申请号:EP84101799.9
击剑英文
申请日:19840221
公开号:EP0117510B1
公开日:
linton
19880113
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专利内容由知识产权出版社提供
南京翻译
摘要:This invention relates to a movel core ring gated injection molding system. Pressurized melt from a molding machine flows through the system and into a cavity. A gate (32) leading to the cavity (34) and a bore (14) in the movable mold platen (36) are in alignment and of the same size to receive the head portion of the valve pin (16) which extends from a reduced neck portion (92). Actuating mechanism drives the valve pin between a retracted clod position to an open position in which the reduced neck portion (92) extends into the cavity (34). In the clod position, the head portion (90) of the valve pin extends a considerable distance into the bore (84) in the mold platen (78) to provide sufficient cooling to rapidly cool the melt in the cavity adjacent the pin. In one embodiment, the valve pin has a hollow portion adjacent the neck portion to provide the valve pin with thermal paration between the hot melt and the cool mold platen. In another embodiment, the valve pin has a copper portion between the hollow portion and the tip end to promote cooling of the melt in the cavity.
verst申请人:GELLERT, JOBST ULRICHmogong>健身教练考试
代理机构:Grünecker, Kinkeldey, Stockmair & Schwanhäusr Anwaltssozietätdeputymanager
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