Method for manufacturing cross winding bobbin

Abstract

To produce a cross wound bobbin (11), at the workstation (2) of a bobbin winder (1), the yarn (30) is wound at the start of a winding cycle at a crossing angle to increase the density of the bobbin core. The crossing angle is increased significantly during the winding cycle, so that the density of the wound bobbin is reduced progressively outwards. The increased crossing angle acts against the yarn laying width, and the stroke movement of the reciprocating yarn guide (29) has a defined increase.

Description

technical field [0001] The present invention relates to a method of making cross-wound bobbins. Background technique [0002] Such cross-wound bobbins are formed, for example, on automatic cross-winding machines. That is to say, at the station of the textile machine relatively small bobbins, which are preferably spun on a ring spinning machine, are wound into large cross-wound bobbins. In addition, yarn inhomogeneities are detected during said winding process so that bad yarns are removed. [0003] In order to enable the orderly processing of such cross-wound bobbins in subsequent processes, such cross-wound bobbins should have good unwinding properties. The unwindability of cross-wound bobbins can be affected, for example, by the way the yarn layers are displaced during manufacture. Yarn layer displacement methods are divided into two categories, the so-called "rough winding" and "fine winding". [0004] The above-mentioned winding types have a long history and are desc...

AI Technical Summary

Problems solved by technology

[0015] The disadvantage of this double-conical cross-wound bobbin is that its receiving capacity is significantly reduced

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