Device for producing spun yarn
AssigneeW. Schlafhorst AG & Co.
InventorsHelmut Feuerlohn, Liberto Coll-Tortosa, Francesc Roig Munill, Thomas Weide, Jose Antonio Tornero-Garcia, Oliver Schulze
Life of this patent
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Abstract
A device for producing spun yarn by means of an airflow acting in a twisting manner on the fibers of an untwisted sliver (1) as the sliver is being conducted into and through a spindle assembly (3). The spindle assembly (3) comprises a spindle head portion (5) which conically tapers toward a spindle inlet opening (2) and is rotatable independently of a spindle core portion (7) through which the yarn is withdrawn. The device suppresses any tendency of the yarn strength to decrease at high, increasing numbers of spindle revolutions.
Claims6
A device for producing spun yarn, comprising:
- (a) a housing,
- (b) a spindle assembly having a sliver entry opening for receiving a drafted, untwisted sliver to be formed into a yarn, a stationary hollow guide portion for guiding therethrough a yarn formed from the sliver, a conical spindle head portion which tapers in the direction of the sliver entry opening, and means for rotation of the spindle head portion independently relative to the stationary guide portion, and
- (c) means for generating an airflow rotationally about the spindle head portion for imparting a rotational turning to fibers of the drafted, untwisted sliver.
Dependencies are inferred from the claim text.