发明名称 |
Device for the preparation of a chemical reactive plastic components' mixture with natural fibers. |
摘要 |
<p>Integrated in the mixing head of a polyurethane apparatus for producing a mixture stream of chemically reactive plastic components, is a cutting arrangement by which natural fibers or fiber strands of soft-elastic and tough consistency can be drawn from a continuous strand and, after cutting into fiber pieces of given length, can be introduced into the mixture stream. The cutting arrangement includes an inner guide tube which receives a fiber strand, drawn from a continuous fiber strand by two feed rollers, and fed via the guide tube and an outer support tube to rotating knife elements. By subjecting the guide tube to a vacuum and applying a compressed gas stream to the end of the outer support tube, the soft-elastic fiber strand is held straight in a manner which is optimal for the cutting process. The cut fiber pieces are introduced together with the gas stream into the mixture stream of chemically reactive plastic components.</p> |
申请公布号 |
EP1100664(B1) |
申请公布日期 |
2002.10.23 |
申请号 |
EP19990941460 |
申请日期 |
1999.07.24 |
申请人 |
KRAUSS-MAFFEI KUNSTSTOFFTECHNIK GMBH |
发明人 |
KRADER, CHRISTOPH;SOECHTIG, WOLFGANG |
分类号 |
B29B7/76;B29B7/90;D01G1/04;(IPC1-7):B29B7/92 |
主分类号 |
B29B7/76 |
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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