Method and apparatus for winding a yarn into a package
AssigneeBarmag AG
InventorsManfred Mayer, Friedhelm Lenz
Life of this patent
Estimating the term…
Abstract
A method and apparatus for winding a continuously advancing yarn, wherein the yarn is wound into a package that is formed on a tubular core, the yarn being traversed by a yarn guide within a traverse stroke. At the beginning of each traverse stroke, the yarn guide is accelerated within a reversal length to a guiding speed, and after traversing the traverse length it is decelerated within a second reversal length. The acceleration and/or deceleration of the yarn guide are controllable, so as to modify the yarn deposit in the package edges.
Claims21
A method of winding a continuously advancing textile yarn into a core supported package, comprising the steps of
- guiding the advancing yarn onto a rotating core by a traversing yarn guide which moves within a traverse stroke and so that during each traverse stroke the traversing yarn guide is accelerated by a predetermined acceleration to a predetermined guiding speed within a reversal length at one end of the traverse stroke, decelerated from the predetermined guiding speed by a predetermined deceleration within a second reversal length at the opposite end of the traverse stroke, and maintained at said predetermined guiding speed along a linear length extending between said reversal lengths, and
- changing at least one of the acceleration and the deceleration of the yarn guide during at least some of the traverse strokes so as to change the extent of the associated reversal lengths and so that the deposit of the yarn onto the package is varied at least one of the package ends.
A method of winding a continuously advancing textile yarn into a core supported package, comprising the steps of
- guiding the advancing yarn onto a rotating core by a traversing yarn guide which moves within a traverse stroke and so that during each traverse stroke the traversing yarn guide is accelerated by a predetermined acceleration to a predetermined guiding speed within a reversal length at one end of the traverse stroke, decelerated from the predetermined guiding speed by a predetermined deceleration within a second reversal length at the opposite end of the traverse stroke, and maintained at said predetermined guiding speed along a linear length extending between said reversal lengths, and
- changing the acceleration and the deceleration of the yarn guide during at least some of the traverse strokes so as to change the extent of associated reversal lengths and so that the deposit of the yarn onto the package is separately varied at each of the package ends.
Dependencies are inferred from the claim text.