Maschinenfabrik Rieter Ag

Rieter Ingolstadt Spinnereimaschinenbau Ag

Rieter Ingolstadt Gmbh

Reiter Ingolstadt Gmbh

Rieter Ag

Frank Baier

Harald Widner

Christian Kettner

Sebastian Brandl

Adalbert Stephan

Romeo Pohn

Mario Maleck

Thomas Gruber

Robert Hagl

Robin Wein

Bernd Bahlmann

Josef Schermer

Kurt Lovas

Jiri Sloupensky

Markus Kuebler

Markus Kübler

Andreas Hoyer

Helmut Haunschild

Julian Reuthlinger

Sebastian Fritz

Andreas Frank

Milos Ferkl

Jiri Kutlvasr

Marc Schnell

Stephan Weidner-Bohnenberger

A cleaning device for cleaning a rotor disk of a spinning rotor has a cleaning head with at least one cleaning element, and a receptacle on which the cleaning head is mounted and which can be fed to the spinning rotor for cleaning the rotor disk. The cleaning head includes at least one bearing area by means of which the cleaning head is mounted on the receptacle. A longitudinal direction of the bearing area defines an axial direction of the cleaning head. The cleaning head is mounted in the axial direction in a floating manner on the receptacle, and/or the cleaning element is mounted in the axial direction in a floating manner on the cleaning head.

Cleaning device for cleaning a rotor disk of a spinning rotor

A method for automatically piecing a thread at a workstation of a textile machine, includes seeking an end of the thread on a surface of a bobbin with a suction nozzle and unwinding the thread from the bobbin counter to a regular draw-off direction of the thread and sucking the thread into the suction nozzle. The bobbin is driven in a direction of reverse rotation with a drive. A thread loop is draw-opened in the thread and moved towards a piecing unit via movement of a feeder unit. The bobbin is driven in the direction of reverse rotation during the drawing-open of the thread loop such that the thread is unwound from the bobbin. A speed of reverse rotation of the bobbin is coordinated with movement of the feeder unit.

Method for automatically piecing a thread at a workstation of a textile machine, and textile machine

An open-end spinning machine and control method are provided for cleaning a spinning rotor of a spinning device in which at least one cleaning measure is carried out on the spinning rotor with the aid of a pneumatic or a mechanical cleaning device. With a control unit associated with the open-end spinning machine, settings are specified for the cleaning device to carry out the cleaning measure, wherein the settings are empirically determined based on one or more operational parameters of the spinning rotor. Operational parameters are stored in a memory bank associated with the control unit. The specific settings for carrying out the cleaning measure for a particular spinning rotor are automatically determined by reference to the operational parameters stored in the memory bank that are applicable to the particular spinning rotor.

Method for cleaning a spinning rotor of open-end spinning machine having at least one spinning device, and a cleaning device for cleaning a spinning rotor

A thread guide unit is used for drawing off a thread out of a rotor of a spinning unit of an open-end spinning machine. The thread guide unit includes a draw-off tube, and a compressed air nozzle configured with the draw-off tube. A thread outlet element extends into the draw-off tube. The compressed air nozzle includes a mouth formed as a gap between an inner diameter surface of the draw-off tube and the thread outlet element. A method for operating a spinning unit of an open-end spinning machine having the thread guide unit is also provided.

Thread-guiding unit, open-end spinning machine and method for operating a spinning station

A rotor spinning machine and associated method are provided for preparing a yarn end for spinning-in at a rotor spinning device, wherein the rotor spinning machine has a rotor housing that is closable with a cover and subjected to negative pressure through a negative pressure channel. A spinning rotor is rotatably mounted in the rotor housing and rotates with an operating rotational speed during a spinning operation. With the method, the yarn end is introduced into the negative pressure channel. The yarn end is then interrupted with a severing structure defined on an open edge of the rotating spinning rotor. During the interruption of the yarn end, the spinning rotor is driven with a defined rotational speed for the preparation of the yarn end that is equal to or less than an operating rotational speed of the spinning rotor.

Method for preparing a yarn end for spinning-in at a rotor spinning device of a rotor spinning machine along with a rotor spinning machine

A cleaning head of a cleaning device for cleaning a spinning rotor, by means of a feed device, be fed into a predetermined cleaning position in the interior of the spinning rotor. The cleaning head has a cleaning element formed as a scraper element arranged in such a manner that, in the predetermined cleaning position of the cleaning head, it is fed to the open edge of the spinning rotor. A cleaning device for cleaning a spinning rotor features a corresponding cleaning head. With a method for cleaning a spinning rotor by means of the cleaning device, after feed of the cleaning head into the cleaning position, the open edge of the spinning rotor is cleaned by means of the scraper element.

Cleaning head and cleaning device for cleaning a spinning rotor along with a method for cleaning a spinning rotor

For the piecing of a yarn in an spinning device, various computation formulas are stored in a control device into which calculated values as well as special data converted into numerical values relating in particular to the fiber material, the yarn and the spinning element are first entered to compute and select settings for operations relevant to the piecing process. A feeding device feeding a fiber sliver to the spinning device is first brought to a high pre-feeding speed by means of such pre-programmed values and converted data. From this pre-feeding speed, the feeding speed is greatly decelerated in steps to its piecing feeding speed in coordination with the release of the yarn to be fed back into the spinning element.

Process and device for the piecing of a yarn in an open-end spinning device

A procedure and apparatus for start-up spinning of a thread in an open-end spinning apparatus is provided. A first and second auxiliary roll-pair are presentable within a thread course during start up spinning. A source of a suction air stream within the spinning apparatus is positioned below the first and second roll-pairs. The source of suction air stream creates a suction flow of air to induce the thread end into the spinning apparatus for start up spinning. A control center is in communication with the first and second roll-pairs, so that the control center controls them. A thread storage unit is positioned between the first and second roll-pairs proximal to the course of the thread. The thread storage unit is in communication with the control center so that the thread storage unit is activated to store and release the thread during start up spinning.

Procedure and an apparatus for start-up spinning of the thread in an open-end spinning apparatus

The rotor cover ( ) of an open-end spinning machine possesses a projecting cover cap ( ) with a side recess ( ), which, on its end remote from the rotor cover is bordered by a collar ( ). This possesses both in the partial zone of its circumferential area containing the collar ( ), and in the remaining circumferential zone, essentially the same outer contour. The recess ( ) begins, relative to the direction of rotation (f) of the spin rotor , between 30&deg; and 130&deg; after the discharge opening ( ) of the fiber feed conduit ( ) and ends at a section of the of the wall ( ) protruding from the radial surface ( ) of the rotor cover ( ). The recess ( ) extends to a radial surface ( ) of the rotor cover ( ) which radial surface ( ) covers the open side of the spin rotor.

Open-end spinning apparatus and a rotor cover

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Hohenwart, Germany

Frank Baier