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公开(公告)号：EP0257009A2
公开(公告)日：1988-02-24
申请号：EP87850243.4
申请日：1987-08-12
发明人： Neumann, Clayton L.
CPC分类号： B29C45/24 , B01D29/35 , B01D29/902
摘要： Apparatus is disclosed for filtering melted plastic used in an injection molding system. The apparatus consists of a housing (12) having an inlet (18) and outlet with a cylindrical inner chamber (21) disposed in alignment therebetween, and a tubular filter element (13) threadably mounted in the internal housing. To avoid loosening of the filter element (13), a plurality of spiral surfaces (34, 42) are formed in the filter element (13) that are exposed to the pressurized flow of melted plastic, generating a resultant force that tends to screw the filter element (13) tighter onto its threaded mount (22). The threaded mount (22) is at the inlet end of the tubular element (27), causing it to extend in cantilever fashion axially into the internal chamber (21) and toward the outlet. This creates an annular discharge passage around the filter element (13) that is unobstructed, permitting the filtered plastic to converge smoothly into the outlet.
摘要翻译： 公开了用于过滤注射成型系统中使用的熔融塑料的装置。 该装置由具有入口（18）的壳体（12）和与其对准设置的圆柱形内腔（21）的出口和可螺纹地安装在内部壳体中的管状过滤器元件（13）组成。 为了避免过滤元件（13）的松动，在过滤元件（13）中形成多个螺旋形表面（34），其暴露于熔融塑料的加压流动，产生趋向于将过滤元件 过滤器元件（13）更紧密地到其螺纹安装座（22）上。 螺纹安装座（22）位于管状元件（27）的入口端，使得其以悬臂的方式轴向地延伸到内部腔室（21）中并朝着出口延伸。 这就形成了一个围绕过滤器元件（13）的环形排放通道，其不被阻挡，从而允许经过滤的塑料平稳地会聚到出口中。
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公开(公告)号：EP0257009B1
公开(公告)日：1992-06-17
申请号：EP87850243.4
申请日：1987-08-12
发明人： Neumann, Clayton L.
CPC分类号： B29C45/24 , B01D29/35 , B01D29/902
摘要： Apparatus is disclosed for filtering melted plastic used in an injection molding system. The apparatus consists of a housing (12) having an inlet (18) and outlet with a cylindrical inner chamber (21) disposed in alignment therebetween, and a tubular filter element (13) threadably mounted in the internal housing. To avoid loosening of the filter element (13), a plurality of spiral surfaces (34, 42) are formed in the filter element (13) that are exposed to the pressurized flow of melted plastic, generating a resultant force that tends to screw the filter element (13) tighter onto its threaded mount (22). The threaded mount (22) is at the inlet end of the tubular element (27), causing it to extend in cantilever fashion axially into the internal chamber (21) and toward the outlet. This creates an annular discharge passage around the filter element (13) that is unobstructed, permitting the filtered plastic to converge smoothly into the outlet.
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公开(公告)号：EP0257009A3
公开(公告)日：1989-07-12
申请号：EP87850243.4
申请日：1987-08-12
发明人： Neumann, Clayton L.
CPC分类号： B29C45/24 , B01D29/35 , B01D29/902
摘要： Apparatus is disclosed for filtering melted plastic used in an injection molding system. The apparatus consists of a housing (12) having an inlet (18) and outlet with a cylindrical inner chamber (21) disposed in alignment therebetween, and a tubular filter element (13) threadably mounted in the internal housing. To avoid loosening of the filter element (13), a plurality of spiral surfaces (34, 42) are formed in the filter element (13) that are exposed to the pressurized flow of melted plastic, generating a resultant force that tends to screw the filter element (13) tighter onto its threaded mount (22). The threaded mount (22) is at the inlet end of the tubular element (27), causing it to extend in cantilever fashion axially into the internal chamber (21) and toward the outlet. This creates an annular discharge passage around the filter element (13) that is unobstructed, permitting the filtered plastic to converge smoothly into the outlet.
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