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US 4,672,803 AGranted
Arrangement for open-end friction spinning
AssigneesHans Stahlecker, Fritz Stahlecker
InventorsFritz Stahlecker, Wolfgang Feuchter
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Abstract
An arrangement for open-end friction spinning with two rollers forming a wedge-shaped gap is provided for separating the two rollers from a drive during a yarn breakage. A device reduces the speed of the roller rotating into the wedge-shaped gap earlier or faster than the roller rotating out of the wedge-shaped gap. Furthermore, a device is provided for switching off the suction device holding the producing yarn within the wedge-shaped gap during a yarn break.
Claims11
Apparatus for open-end friction spinning comprising:
- a pair of adjacently arranged friction rollers forming a wedge-shaped yarn forming gap therebetween;
- roller driving means for driving the rollers in the same rotational direction;
- holding force means for applying holding forces to hold the forming yarn and supplied fibers in the wedge-shaped gap;
- and
- separating means for separating the rollers from said roller driving means after yarn breakage, said separating means being controlled by a yarn monitor and including means insuring that the roller which normally rotates into the wedge-shaped gap during its deceleration has a rotational speed which at least at high rotational speeds does not exceed the speed of the other roller.
2 more elements
Dependencies are inferred from the claim text.