| 摘要 |
PROBLEM TO BE SOLVED: To surely enable the identification of a wound yarn package grade depending on yarn qualities such as a winding tension, a twist density and the like during he production. SOLUTION: In the drawing and false-twisting machine for traversing a yarn Y unwound from a feeding package and then false-twisted and simultaneously winding up the traversed yarn to form a taper-ended type wound yarn package 7, a tension sensor 20 for detecting the tension of the yarn Y to be processed into the wound yarn package 7, and a grade-judging means 30 for judging the grade of the wound yarn package 7 on the basis of the detected tension information are disposed. Further, a winding end position-setting means 28b for connecting the grade-judging means 32 to a traverse device T is disposed in a controller 28, so that the wound position (b) of the wound yarn package 7 at a winding-finished time is determined at a different position in the axial direction on the basis of the judgment result of the grade-judging means 32.
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