Method and mechanism for elimination of an irregularity in a yarn
AssigneeSchubert & Salzer
InventorsGerd Husges, Edmund Schuller, Rupert Karl, Eberhard Grimm
Life of this patent
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Abstract
A method and apparatus for the elimination of an irregularity in a yarn being produced on an open end spinning machine and drawn off therefrom by a pair of draw-off rollers and wound on a bobbin. The yarn is deflected into an N-shaped run so that a knotting mechanism can knot the parallel portion of the yarn together so as to remove the irregularity in the yarn. Yarn guides are provided on the knotting mechanism for displacing an oblique portion of the yarn out of the knotting mechanism when in use.
Claims14
A method of elimination of an irregularity in a yarn which includes two parallel sections of yarn, one of which extends to a pair of draw-off rolls and the other to a bobbin, said two parallel sections being laid into a knotting mechanism which joins the two sections of yarn together and severs the superfluous ends of the yarn, the improved method comprising the following steps:
- deflecting said yarn extending from said draw-off rolls to said bobbin in such a way that said yarn adopts an N-shaped run of yarn containing an oblique connection section between said two parallel sections;
- and
- maintaining said oblique connecting section out of the working range of said knotting mechanism as said knotting mechanism is brought forward perpendicularly up to said N-shaped run of the yarn.
An apparatus for elimination of an irregularity in a yarn which includes two parallel sections of yarn, one of which extends to a pair of draw-off rolls and other to a bobbin, a knotting mechanism joining said two parallel sections of yarn together with a knot and severing the superfluous portion of said yarn containing said irregularity, the improvement comprising:
- means for deflecting said yarn between said draw-off rolls and said bobbin in such a way that said yarn adopts an N-shaped run of yarn containing an oblique connecting section between said two parallel sections;
- and
- means for maintaining said oblique connecting section out of the working range of said knotting mechanism as said knotting mechanism joins said two parallel sections of yarn.
Dependencies are inferred from the claim text.