发明名称 Process and device to piece to an open-end friction spinning device
摘要 PCT No. PCT/DE86/00318 Sec. 371 Date May 8, 1987 Sec. 102(e) Date May 8, 1987 PCT Filed Aug. 2, 1986 PCT Pub. No. WO87/01742 PCT Pub. Date Mar. 26, 1987.For piecing to an open-end friction spinning device with two friction spinning elements normally driven in the same direction of rotation and forming a nip therebetween, of which friction spinning elements at least one is capable of being subjected to suction, fibers are continuously fed to the nip and are then immediately removed from same. While fiber feeding continues uninterruptedly, the removal of fibers from such nip is then discontinued, so that fibers remain in the nip and form a rotating accumulation of fibers. A yarn end is then introduced to such accumulation of fibers. Newly formed yarn is then drawn off from the nip while fibers being fed continuously to such nip are continuously formed into such yarn. For such removal of fibers, a controllable suction air nozzle may be directed towards the above-mentioned nip from a side of the friction spinning elements opposite such nip. The friction spinning elements can also be moved radially apart in relation to each other to enhance transfer of fibers thereon to the controllable suction air nozzle or some other substantially equivalent fiber removal device, such as a conveyor belt.
申请公布号 US4781017(A) 申请公布日期 1988.11.01
申请号 US19870055627 申请日期 1987.05.08
申请人 发明人
分类号 D01H4/04;D01H4/48;D01H4/52;D01H15/00;(IPC1-7):D01H15/00;D01H7/885 主分类号 D01H4/04
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