| 摘要 |
PURPOSE:To carry out continuously drawing of undrawn yarn, twisting and winding of the drawn yarn, and to obtain high-quality drawn hard twist yarn, by griping the drawn yarn, twisting it with forming fixed point of twisting. CONSTITUTION:Undrawn yarn is drawn between a pair of the feed rolls 4 and a pair of the drawing rolls 7, griped by a pair of the positively driving rolls 8 and the single weight roll 9, wound round the surfaces of the rolls 8 and 9 at >=120 deg., and fed to a ring twisting device. Twist made by a traveller is propagated upward, and the twisting point is fixed and kept at a constant position based on a spindle.
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