Combined frictional false twisting device for ring spinning frame
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United States of America Patent
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May 24, 2016
Grant Date -
May 14, 2015
app pub date -
Feb 16, 2012
filing date -
Oct 31, 2011
priority date (Note) -
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Abstract
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.
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