Procedure for preparing a piecing process in an open-end rotor spinning unit
AssigneeSpindelfabrik Suessen, Schurr, Stahlecker & Grill GmbH
InventorBernhard Boehnke
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Abstract
In the case of a procedure for preparing a piecing process in an open-end rotor spinning aggregate it is provided that a thread end, which is to be pieced in a fiber ring located in a spinning rotor, is first cross-cut, thinned-out and moistened. The dampening takes place subsequent to the thread being thinned-out, in that the thread end slides over a wetting surface.
Claims23
A process for preparing a piecing process in an open-end rotor spinning aggregate, whereby a cross-cut fiber thread to be pieced in a fiber ring located in a spinning rotor is thinned-out and moistened, wherein the moistening takes place after the thinning-out process by means of sliding the thread end along a moistening surface, wherein the moistening takes place before the thread end is pieced in the fiber ring located in the spinning rotor.
An arrangement for preparing a piecing process in an open-end rotor spinning aggregate, comprising:
- a suction tube for thinning out a thread end and having an entry opening for a cross-cut thread end to be pieced, and
- a device arrangeable at the suction tube for moistening the thread end, wherein the device for moistening comprises a moistening surface, which moistening surface can be selectively movably positioned at the entry opening of the suction tube after the thinning-out process is completed and along which the thinned-out thread end slides when it is being withdrawn from the suction tube.
A process for piecing yarn in an open end rotor spinning unit, comprising:
- thinning a yarn end to be pieced to form a thinned yarn end,
- subsequentially moistening the thinned yarn end, and
- subsequently returning the yarn end to a fiber ring in a rotor of the spinning unit to thereby piece the yarn end with the fiber ring.
An apparatus for piecing yarn in an open end rotor spinning unit, comprising:
- thinning means for thinning a yarn end to be pieced to form a thinned yarn end,
- moistening means for subsequentially moistening the thinned yarn end, and
- yarn end returning means for subsequently returning the yarn end to a fiber ring in a rotor of the spinning unit to thereby piece the yarn end with the fiber ring.
Dependencies are inferred from the claim text.