Method and apparatus for winding a continuously advancing yarn
AssigneeBarmag AG
InventorsFriedhelm Lenz, Reinhard Lieber
Life of this patent
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Abstract
A method and apparatus for winding a continuously advancing yarn, wherein the yarn is wound on a driven tube to a cross wound package. The yarn is reciprocated by means of a traversing yarn guide within a traverse stroke which is variable in its length within the package width of the cross wound package. During the winding cycle, the traverse stroke is varied between a maximum length at the beginning of the winding cycle and an end length at the end of the winding cycle by a predetermined stroke function in such a manner that in the course of the winding cycle, a certain length is associated to each traverse stroke, with the lengths of the traverse strokes being smaller than the respective wound package widths then being formed.
Claims20
A method of winding a continuously advancing yarn to form a cross wound package, comprising the steps of
- reciprocating the advancing yarn by means of a traversing yarn guide which defines a traverse stroke and so as to deposit the yarn on the package,
- controlling the traverse stroke of the traversing yarn guide within the package width so that at the beginning of the winding cycle the traverse stroke has a maximum predetermined length and at the end of the winding cycle the traverse stroke has a predetermined end length for defining the desired angle of slope of the end faces of the package, and
- wherein the length of the traverse stroke is varied as a function of a predetermined stroke function which associates in the course of the winding cycle a certain length to each traverse stroke, with the length of the traverse strokes being less than the respectively wound package widths.
Dependencies are inferred from the claim text.