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US 5,179,828 AGranted
Spinning machine having a doffing arrangement
AssigneeOne-half to Hans Stahlecker
InventorFritz Stahlecker
Life of this patent
Estimating the term…
Abstract
In a case of a spinning machine having a plurality of spinning positions and having a package spool changing arrangement or doffing arrangement which can be applied to the individual spinning positions, it is provided that the doffing arrangement comprises devices for the winding-off of the yarn wound onto a full X-package and for winding this yarn back onto a predetermined area of the X-package in parallel layers and/or layers disposed above one another.
Claims22
A spinning machine comprising:
- a plurality of spinning positions for producing yarn, each spinning position being equipped with means for spinning two single yarns and for guiding the single yarns together to form a double yarn and with X-package forming means for forming an X-package with the double yarn,
- doffing means including X-packing removing means for removing an X-package from a cradle of a spinning position and inserting means for inserting a tube in the cradle,
- package size detecting means for detecting a predetermined degree of fullness of an X-package, and
- spinning operation interrupting means for interrupting spinning operation at a spinning position in response to detection of a completed X-package by the package size detection means,
- wherein the doffing means includes winding off means for winding-off of yarn previously wound on an X-package, yarn strengthening means for strengthening and connecting the two ends of the wound off double yarn to form a double yarn end, and rewinding means for rewinding the strengthened double yarn end back onto a predetermined location on the X-package as the final windings on the X-package.
2 more elements
Dependencies are inferred from the claim text.