发明授权
- 专利标题： High capacity extrusion die assembly
- 专利标题（中）： 大容量挤出模具组装
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申请号： US12715134申请日： 2010-03-01
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公开(公告)号： US07785094B1公开(公告)日： 2010-08-31
- 发明人: Joseph P. Kearns , Galen J. Rokey , Philip B. Wiltz , Anthony L. Bruning , Lafe N Bailey
- 申请人： Joseph P. Kearns , Galen J. Rokey , Philip B. Wiltz , Anthony L. Bruning , Lafe N Bailey
- 申请人地址： US KS Sabetha
- 专利权人： Wenger Manufacturing, Inc.
- 当前专利权人： Wenger Manufacturing, Inc.
- 当前专利权人地址： US KS Sabetha
- 代理机构： Hovey Williams LLP
- 主分类号： B29C47/40
- IPC分类号： B29C47/40
摘要：
High-capacity extrusion die assemblies (20, 90, 130, 140, 180, 252) each having a tubular section (44, 146, 162, 268) and an elongated, axially rotatable, helically flighted screw section (56, 56a, 152, 168, 276, 278) which cooperatively define frustoconical, outwardly diverging material flow paths (75, 160, 291) at constant or differing divergence angles of from about 1-11°. The use of diverging tubular sections (44, 146, 162, 268) and screw sections (56, 56a, 152, 168, 276, 278) permits the use of larger die plates (76, 118, 292) with an increased number of die openings (80, 124, 296). This allows significant increases in extrusion production rates. The die assemblies (20, 90, 130, 140, 180, 252) can be used in the production of a wide number of human foods or animal feeds, and particularly aquatic feeds of the floating or sinking variety. In another aspect of the invention, an extruder (210) is provided having diverging and converging sections (212, 214) along the length thereof and defining corresponding flow paths (230, 246).