发明名称 |
EXTRUDER FOR REPLASTIFYING THERMOPLASTIC STRIPS, FOIL OR WEBS |
摘要 |
<p>A worm extruder for replastifying miscast plastic webs has a cylinder bore communicating with a receiving chamber at a feed opening, the chamber and the bore being provided with a plurality of longitudinal grooves for catching plastic strips wound about the extruder shaft upon feeding to the receiving chamber. Upon being snagged by the grooves, the strips are ground between a worm thread of the extruder shaft and a polished surface of the bore in which the catch grooves are disposed. The receiving chamber is asymmetrically formed with a peripheral sickle-shaped space extending in part into the cylinder bore toward a resin outlet, while the shaft is formed in the region of the chamber with a plurality of worm threads having equispaced notches. The walls of the chamber are polished.</p> |
申请公布号 |
CA1142723(A) |
申请公布日期 |
1983.03.15 |
申请号 |
CA19800359585 |
申请日期 |
1980.09.05 |
申请人 |
PLASTIK-MASCHINENBAU G.M.B.H. & CO. KG -ENTWICKLUNGSGESELLSCHAFT- |
发明人 |
GENG, HANS |
分类号 |
B29B17/00;B29C47/58;(IPC1-7):B29B1/10 |
主分类号 |
B29B17/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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