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1. 发明申请

US20060228441A1 Valve ring gate for thermoplastic and thermoset injection molding 有权
标题翻译：用于热塑性和热固性注射成型的阀环浇口
公开(公告)号：US20060228441A1
公开(公告)日：2006-10-12
申请号：US11101343
申请日：2005-04-07
申请人： David Barth , Edward Park , Johannis Geelhoed
发明人： David Barth , Edward Park , Johannis Geelhoed
IPC分类号： B29C45/23
CPC分类号： B29C45/28
摘要： An injection molding machine having a first mold portion and a second mold portion. The second mold portion being movable relative to the first mold portion and together defining a mold cavity. The injection molding machine includes a fluid path extending through the first mold portion. The fluid path has an inlet and a radially continuous, downwardly-extending, circumferential outlet in fluid communication with the mold cavity. The injection molding machine further having a valve ring movably coupled in the first mold portion. The valve ring includes a downwardly extending rim portion substantially disposed within the fluid path. The valve ring is positionable in a closed position where the rim portion engages the circumferential outlet to obstruct flow of the molding material from the fluid path to the mold cavity and an opened position where the rim portion is spaced apart from the circumferential outlet to permit flow of the molding material from the fluid path to the mold cavity. The injection molding machine further includes a heating assembly in thermal communication with at least a portion of the fluid path to maintain the molding material in an uncured state for thermoset rubbers and plastics, and in a molten state for thermoplastics.
摘要翻译：一种具有第一模具部分和第二模具部分的注塑机。第二模具部分可相对于第一模具部分移动并且一起限定模腔。注射成型机包括延伸穿过第一模具部分的流体路径。流体路径具有与模腔流体连通的入口和径向连续的向下延伸的圆周出口。该注射成型机还具有可移动地联接在第一模具部分中的阀环。阀环包括基本上设置在流体路径内的向下延伸的边缘部分。阀环可定位在闭合位置，其中边缘部分接合周向出口以阻止模制材料从流体路径流到模腔，并且打开位置，其中边缘部分与周向出口间隔开以允许流动的模制材料从流体路径到模腔。注射成型机还包括与流体路径的至少一部分热连通的加热组件，以将模制材料保持在热固性橡胶和塑料的未固化状态，并且在热塑性塑料的熔融状态下。

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