Method of producing different types of spool windings, especially flyer or composite spools
AssigneeZinser Textilmaschinen GmbH
InventorsHorst Feiler, Hermann Guttler, Ralf Wilhelmstatter
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Abstract
A process for producing different types of windings, especially a flyer winding or a composite winding, in the formation of a spool on a core sleeve of a spindle in a draft-twisting machine or frame in which, instead of displacing the ring rail over the full height of the spool to be formed, the full height is subdivided into zones and the ring rail is reciprocated in each of these zones only through a fraction of the total structure of the ring rail. During the winding in each zone, the spindle speed is held approximately constant and the spindle speed is changed only upon a transition from one zone to another.
Claims17
A method of producing different types of windings of a spool formed on a core in a drafting-twisting machine in which the core is mounted on a spindle and yarn is wound on the core from travellers orbiting on respective rings of a vertically displaceable ring rail, comprising the steps of:
- a) subdividing a total height of displacement of said ring rail, corresponding to the movement of said ring rail vertically to form the entire length of said spool on said core into at least two winding zones;
- b) maintaining a substantially constant speed of said spindle for winding yarn on said core in each of said zones while vertically reciprocating said ring rail over only a portion of said layer for winding yarn on said core in each of said zones;
- and
- c) changing said speed of said spindle from a first speed with which said yarn is wound in said spool in one of said zones to a second speed with which said yarn is wound in said spool in a second of said zones.
Dependencies are inferred from the claim text.