发明名称 |
METHOD FOR PIECING A YARN IN A FRICTION-SPINNING DEVICE |
摘要 |
In order to start or recommence spinning of a yarn in a friction spinning device, the following method steps are carried out upon start-up of a new spinning operation or upon piecing after a thread break: fibers separated by an opening device are delivered by means of a fiber transporting passage to a rotating friction spinning drum and are twisted to form a twisted fiber structure; when the twisted fiber structure has substantially reached a predeterminate diameter or size, then the twisted fiber structure is transported by an airstream delivered by a pressure duct towards and into a guide tube and is forwarded therein into a convergent space of rotating withdrawal rolls; and the twisted fiber structure is caught at production speed by these withdrawal rolls and delivered on a divergent side of the withdrawal rolls to a receiving suction device which transfers the spun yarn subsequent to the twisted fiber structure to further processing elements. |
申请公布号 |
DE3663156(D1) |
申请公布日期 |
1989.06.08 |
申请号 |
DE19863663156 |
申请日期 |
1986.09.11 |
申请人 |
MASCHINENFABRIK RIETER AG |
发明人 |
BRINER, EMIL;HIERONYMI, RICHARD |
分类号 |
D01H11/00;D01H4/52;(IPC1-7):D01H15/02 |
主分类号 |
D01H11/00 |
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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