Saurer Spinning Solutions Gmbh & Co. Kg

Jonathan Sprecher

Philipp Schiffers

Michael Spitzer

Eduard Prediger

Dirk Brakensiek

Wolfgang Doerner

Heiko Toepke

Harald Wilhelm Wassen

Erwin Peters

Bodo Hansen

Robert Geisler

Dirk Schiffers

Lothar Uedinger

Tai Mac

An open-end spinning machine having a plurality of workstations, each workstation has a spinning apparatus for producing a thread, a thread draw-off device for drawing off the thread from the spinning apparatus, a storage nozzle, a winding apparatus for producing a cross-wound bobbin, and a suction nozzle, to which negative pressure can be applied. The open-end spinning machine is equipped with at least one service unit, serving a plurality of the workstations and has an auxiliary-thread delivery device for delivering an auxiliary thread and an auxiliary-thread draw-off, which are used in a piecing process at a workstation to be served. The auxiliary-thread draw-off can be operated in such a way that the auxiliary-thread draw-off speed of the auxiliary-thread draw-off for drawing off the pieced auxiliary thread has a speed offset, which takes into account the thread draw-off speed of the thread draw-off device and at least one additional correction factor.

Open-end spinning machine, and method and control device for operating an open-end spinning machine of this type

A textile machine for producing cross-wound packages, which has a plurality of workstations on the two longitudinal sides of the machine and is equipped with a tube magazine arranged at an end of the machine, the tube magazine having a plurality of empty-tube transport rows, driven by electric motor and loaded with empty tubes of different yarn lots. In order to avoid the fixed division of the empty-tube transport rows that hitherto was defined by the construction of the tube magazine and thus to avoid limited variations in the yarn lot management, the invention provides for the empty-tube transport rows to be equipped with electric drives, which are connected to a control unit of the textile machine, the machine control system being designed in such a way that different lot management programs are set by software.

Textile machine producing cross-wound packages

A textile machine producing cross-wound packages with a plurality of identical workstations which are arranged in the area of the longitudinal sides of the textile machine and each of which has a winding device, and equipped with a tube supply device which includes a central tube magazine and at least one tube conveyor belt installed in the area of the longitudinal sides of the machine, in which case a cross-wound package can be removed, if necessary, from the winding device of the relevant workstation on the textile machine producing cross-wound packages and can be transferred to a cross-wound package transport device running the length of the machine, and an empty tube provided on the tube conveyor belt of the tube supply device can be inserted by means of a tube gripper into the winding device of the relevant workstation. The tube supply device is designed in such a way that the tube conveyor belt can be used as a tube accumulator for empty tubes during the operation of the textile machine producing cross-wound packages. In order to improve the efficiency of such a textile machine producing cross-wound packages, in particular to minimize significantly the tube delivery times arising in the event of yarn lot changes at a textile machine producing cross-wound packages, a drive is connected to the at least one tube conveyor belt, which drive enables reversible operation of the tube conveyor belt.

Textile machine producing cross-wound packages and method for operating a textile machine producing cross-wound packages

A textile machine for producing cross-wound packages, the machine being equipped with a plurality of workstations arranged next to one another on both longitudinal sides of the machine and having a cross-wound package transport apparatus. The cross-wound package transport apparatus has a first transport device, arranged between the two rows of workstations for conveying cross-wound packages, and a handling apparatus for moving cross-wound packages from the first transport device to the second transport device. The handling apparatus is arranged between the end regions of the first transport device.

Textile machine producing cross-wound packages, comprising a cross-wound package transport apparatus

A service unit is provided as well as a method for controlling a service unit performing various service activities at one workstation on a textile machine having several workstations, in which case the service activities and movement orders to be carried out by the service unit are prioritized by a controller unit. In order to provide a method for controlling a service unit performing various service activities and movement orders as well as a service unit with a controller device for carrying out movement orders and service orders, which enable adjustment and maintenance work to be carried out quickly on the service unit, there is provision for avoidance maneuvers and parking orders to be carried out with the highest priority and manually set service activities and movement orders to be carried out with high priority.

Method for controlling a service unit

A tube storage and transport device for a textile machine producing cross-wound packages, which has a plurality of similar workstations arranged side-by-side on both longitudinal machine sides, having a central tube magazine and two empty-tube conveyor belts arranged in the region of the longitudinal machine sides is provided. To improve the known tube storage and transport devices, and in particular to optimize the clock times that can be achieved during the empty-tube delivery, the tube magazine has at least two elevator units, that the elevator units have stacked and vertically displaceable holders for empty tubes, that the holders are designed for the empty tubes to be set down in a manner oriented the longitudinal direction of the machine, and that each of the elevator units is connected to one of the empty-tube conveyor belts and is designed in such a way that empty tubes are removed from the elevator units from the longitudinal machine side and transferred onto the empty-tube conveyor belts.

Tube storage and transport device for a textile machine producing cross-wound packages

Method for operating a service unit for processing work orders regarding a cross-wound package/empty tube doffing process employed at spinning machines producing take-up packages that process at least two different lots, whereby the service unit is fed an empty tube via the spinning machine's tube feed track, and the fed empty tube is taken up by the service unit. If the current work order for the cross-wound package/empty tube doffing of the workstations expires before it is processed and the empty tube is exchanged and another work order has come in which is for a workstation requiring a cross-wound package/empty tube doffing for another lot, the already taken up empty tube is released by the service unit, and the service unit takes up an empty tube of another lot in order to be able to carry out a cross-wound package/empty tube doffing process at the other workstation.

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Aachen, Germany

Jonathan Sprecher