Process and device to piece a yarn on an open-end spinning devic

Details Process and device to piece a yarn on an open-end spinning devic Process and device to piece a yarn on an open-end spinning devic

1997-08-12

1999-07-27

Stryjewski, William

Textiles: spinning, twisting, and twining

Apparatus and processes

Piecing up

57261, D01H 1326

Patent

active

059270616

ABSTRACT:
The present invention relates to a process to piece a yarn (2) to an open-end spinning device (1), in which a plurality of handling devices (4) on a service unit (3) traveling alongside a plurality of identical open-end spinning devices (1) execute different work motions and in which a yarn end is taken over by a presentation device (31) and is conveyed to the open-end spinning device (1), and is then returned into same for piecing. In this process all the handling devices (4) go through a joint motion phase and if necessary through an individual motion phase. To carry out this process the handling devices (4) are mounted on a common bearing device (5) which can be moved back and forth between at least two work positions (I, II) by means of a drive arrangement (50) controlled by the control device (6).

REFERENCES:
patent: 3911658 (1975-10-01), Smith
patent: 3962855 (1976-06-01), Stahlecker
patent: 4295330 (1981-10-01), Pfeifer
patent: 4628684 (1986-12-01), Morita et al.
patent: 4644742 (1987-02-01), Lovas et al.
patent: 4653261 (1987-03-01), Scheiber et al.
patent: 5022222 (1991-06-01), Rupert et al.
patent: 5303538 (1994-04-01), Pagura et al.
patent: 5778651 (1998-07-01), Spindler et al.
EPO Search Report Dated Jan. 5, 1998.
German Search Report, Dec. 11, 1996.

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