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公开(公告)号:US20190184620A1
公开(公告)日:2019-06-20
申请号:US15844875
申请日:2017-12-18
CPC分类号: B29C48/2567 , B29C48/265 , B29C48/2888 , B29C48/397 , B29C48/501 , B29C48/655 , B29C48/68 , B29C48/686 , B29C48/725 , B29C48/92 , B29C2948/92514 , B29C2948/92876
摘要: An improved extruder apparatus is disclosed and which includes a cylindrical barrel having a feed end and a discharge end, the feed end having an inlet in fluid communication with a hopper. The extruder screw is mounted in the cylindrical barrel, and the screw has an outer surface having one or more helical flights mounted thereon. wherein the inlet end of the cylindrical barrel has a support frame mounted thereto, wherein an upper surface of the support frame is connected to a throat of a hopper, wherein an insert is mounted to the support frame and has a lower end which extends down into the cylindrical barrel, wherein the insert has an internal passageway having a first opening on the lower end and a second opening upstream of the screw for relieving the pressure.