US 12,012,672 B2
Open-end spinning machine, and method and control device for operating an open-end spinning machine of this type
Jonathan Sprecher, Aachen (DE)
Assigned to Saurer Spinning Solutions Gmbh & Co. KG, Übach-Palenberg (DE)
Appl. No. 17/772,884
Filed by Saurer Spinning Solutions Gmbh & Co. KG, Uebach-Palenberg (DE)
PCT Filed Oct. 29, 2020, PCT No. PCT/EP2020/080339
§ 371(c)(1), (2) Date Apr. 28, 2022,
PCT Pub. No. WO2021/083985, PCT Pub. Date May 6, 2021.
Claims priority of application No. 102019129499.1 (DE), filed on Oct. 31, 2019.
Prior Publication US 2022/0403560 A1, Dec. 22, 2022
Int. Cl. D01H 4/48 (2006.01); D01H 4/08 (2006.01); D01H 4/50 (2006.01); D01H 15/00 (2006.01)
CPC D01H 4/48 (2013.01) [D01H 4/08 (2013.01); D01H 4/50 (2013.01); D01H 15/00 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An open-end spinning machine having a plurality of workstations, each of which has: a spinning device for producing a thread; a thread take-up device for taking up the thread from the spinning device; an accumulator navel for temporarily storing the taken-up thread; a winding device for producing a cross-wound package; and a suction nozzle, which can be subjected to a vacuum, the open-end spinning machine being equipped with at least one service unit, which serves several of the workstations and which has an auxiliary thread delivery device for delivering an auxiliary thread and an auxiliary thread take-up, which are used during a piecing process at a workstation to be served,
characterised in that
the auxiliary thread take-up is configured and is operated in such a way that the auxiliary thread take-up speed of the auxiliary thread take-up for the take-up of the pieced auxiliary thread has a speed offset, which takes into account the thread take-up speed of the thread take-up device and at least one further correction factor.