14-05-2015 дата публикации
Номер: US20150128555A1
Автор:
Dai Ziyl,
Fang Lei,
He Xihui,
Hua Genda,
Lan Hongyan,
Liao Shimin,
Song Yun,
Wan Xiaoyan,
Wang Linyao,
Zhang Deliang,
ZHOU Wenhua
A frictional false twister is disclosed. The twister has a plurality of rotating friction plates located between the nip of the front rollers and the yarn guide. The friction plates are staggeringly arranged for rubbing a twisted yarn. The spinning direction of the twisted yarn is opposite to the rotating direction of the friction plates. Through the action of the frictional false twister, the twist of the yarn between the false twisting device to the front nip can be increased, shortening the twisting triangle height, and increasing the spinning strength. As the yarn and the outer surface of the friction plate make relative sliding and rubbing, the friction damping force correspondingly reduces the spinning tension in the twisting triangle. 13-. (canceled)4. A frictional false twisting device , comprising:{'b': 1', '2', '3', '15', '16', '17, 'a plurality of friction plates (′, ′, ′), located between a roller nip (/) and a yarn guide () in a ring spinning machine, each friction plate comprising a peripheral outer surface, wherein the roller nip is arranged to output a yarn toward the yarn guide, the yarn is arranged to spin in a spinning direction; and'}{'b': 9', '1', '2', '1', '3, 'a movement mechanism () arranged to rotate the friction plates in a rotating direction different from the spinning direction, wherein at least two of said plurality of friction plates (′, ′ or ′, ′) are located adjacent to each other but on different planes and rotated about different axes such that a segment of the yarn between the roller nip and the yarn guide is arranged to rub against the peripheral outer surfaces of said at least two friction plates.'}5. The frictional false twisting device according to claim 4 , further comprising{'b': 1', '2', '3', '4, 'a plurality of mandrels (, , ), each of the mandrel having a shaft for mounting a different one of said plurality of friction plate for rotation, wherein the movement mechanism comprises a driving belt () configured to rotate said ...
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