Method for controlling the drive of a yarn winder, and the yarn

Details Method for controlling the drive of a yarn winder, and the yarn Method for controlling the drive of a yarn winder, and the yarn

1997-06-04

1999-08-10

Stryjewski, William

Winding, tensioning, or guiding

Helical or random winding of material

Distributing material along the package

2424775, 242481, B65H 5400, B65H 6744

Patent

active

059346019

ABSTRACT:
A yarn winder in which a fluctuation of winding tension is avoided and the winding characteristics are made uniform from the most inner to the most outer layer. Yarn is wound by a winder in which a spindle 2 having a positively driven pressure roller 5 is positively driven, the pressure roller 5 being positioned so that it is not in contact with a tube 100 immediately after the yarn setting operation. After a predetermined amount of yarn layer has been wound on the tube 100, the pressure roller 5 is moved so that it contacts the yarn layer on the tube 100. The surface speed of the pressure roller 5 is controlled to be higher than that of an empty tube until the yarn is switched to the empty tube, wherein the controlled speed is approximately the same as or lower than the surface speed of a fully loaded tube, and the surface speed of the pressure roller is controlled to be approximately the same as the surface speed of the empty tube after the yarn has been switched to the empty tube.

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