Fiber feed arrangement for open-end friction spinning
AssigneesHans Stahlecker, Fritz Stahlecker
InventorFritz Stahlecker
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Abstract
A method and apparatus for open-end friction spinning is disclosed having two adjacently arranged friction rollers, driven in the same rotational direction and forming a wedge-shaped gap therebetween. A suction device effective in the area of the gap as well as a fiber feed channel leading to the gap and a yarn withdrawal device for drawing off the produced yarn in the direction of the gap are also provided. It is further provided that the mouth of the fiber channel extending at a tangential angle to the gap is widened in the area of the gap in that the channel wall facing the same is formed with a rounded curve. By these measures the fiber deposition in the gap is improved by modifying the fiber transport air stream path to deposit the fibers in a straightened and parallel manner in the gap.
Claims17
Open end friction spinning apparatus comprising:
- drivable friction surface means defining a yarn formation zone,
- fiber supplying means for supplying individual fibers to the yarn formation zone,
- suction device means for applying suction forces to the area of the yarn formation zone to assist in feeding the fibers thereto and to hold the same during yarn formation thereat,
- and yarn withdrawal means for withdrawing yarn from the yarn formation zone,
- wherein said fiber supplying means includes a fiber feed channel extending at an angle to the longitudinal extension of the yarn formation zone wherein the mouth of the fiber feed channel is widened in the area of the yarn formation zone and the fiber feed channel wall facing the yarn formation zone is curved convexly to facilitate control of the fiber transport air stream and fibers to optimize alignment of the fibers in the yarn formation zone.
Dependencies are inferred from the claim text.