Schubert & Salzer

Rieter Ingolstadt Spinnereimaschinenbau Ag

Schubert & Salzer Maschinenfabrik Aktiengesellschaft

Eugen Hini

Erich Bock

Eberhard Grimm

Edmund Schuller

Kurt Lovas

Hans Landwehrkamp

Walter Mayer

Rudolf Oexler

Burkhard Wulfhorst

Kurt Inderst

Bernhard Grupp

The present invention relates to a bearing for an open-end spinning rotor. The latter is driven at its rotor shaft by means of a tangential belt in a predetermined direction and is supported in a nip which is formed by at least two bearing disks capable of being driven by the rotor shaft. A bearing disk (at least one) leads in relation to the drive direction of the tangential belt rotating into the nip, and another bearing disk (at least one) trails in relation to the drive direction of the tangential belt rotating out of the nip. The axis of the bearing disk (at least one) rotating into the nip is at a specified distance from the plane which goes through the rotor shafts of the spinning rotors of several adjoining open-end spinning devices. This distance is being smaller than the distance between the axis of the bearing disk (at least one) rotating out of the nip and the rotor shaft plane. A plane going through the axes of the bearing disks forms an acute angle between 5&deg; and 15&deg; with the plane going through the axes of the spinning rotors.

Bearing for a spinning rotor

Step bearing for the shaft of a spinning rotor

The invention relates to an open-end rotor-spinning device with a rotor shaft which is mounted and driven in the wedge-shaped gap between supporting disks and to the free end of which is assigned an axial bearing. A simplified mounting, which also allows the supporting disks to be removed and exchanged while the machine is in operation, is provided because the rotor shaft (1) is mounted at two bearing points, of which one is formed by supporting disks (2, 3) arranged in the vicinity of the spinning rotor (10) and the second is a bearing (5) which absorbs axial and radial forces and which receives the free end (11) of the rotor shaft (1). An increase in the operating speed of the spinning rotor (10) without an increase in the running speed of the drive means (6) is achieved as a result of a reduction of the diameter of the rotor shaft (1) in the region of the drive means.

Open-end rotor-spinning device

In order to wind a newly joined thread onto a tube newly inserted on a spooling device on an open-end spinning mechanism, the newly joined thread, together with a thread portion containing a leader, is guided away before the start of the bobbin build-up. Thereupon, the thread portion containing the leader is severed from the thread, and subsequently, the thread supplied by the open-end spinning mechanism is transferred to the newly inserted tube. To exchange a full bobbin for a new tube, a thread break is produced, the open-end spinning mechanism is cleaned and the thread is thereupon joined anew. To carry out this process, there are, on an open-end spinning mechanism, provided with a thread-joining device and a spooling device, a thread-suction device (4), a thread feeder (42) transferring the thread (35) supplied to the thread-suction device (4) to a newly inserted tube, and a thread-severing device (41) assigned to the thread-suction device (4).

Process for winding a newly joined thread onto a tube newly inserted in

An apparatus and method for stopping operation of an open-end spinning machine is disclosed whereby the rotor shaft 1 of the spinning rotor and the shafts 30, 40 of the support rollers 3, 4 are rapidly but gently stopped by applying a braking force to the shafts of the support rollers after the rotor shaft is braked. Preferably a single force is shared and applied in timed sequence for braking the rotor shaft and the support roller shafts. The apparatus for carrying out the method includes a pivotable lever 7 which is pivotable about an axis 70 and carries a support 73 having a brake lining which receives the rotor shaft 1. A belt lifting roller 72 is carried on the pivotable lever which lifts a tangential belt 5 off of the rotor shaft 1 to thus stop the drive of the spinning rotor. The support 73 is elastically carried on the lever 7 by means of a U-shaped spring 74. A pair of brake jaws 80, 81 are carried on a common mounting piece 8 about a fulcrum 80 which can be pressed against the shafts 30, 40 of the support rollers 3, 4 after the shaft 1 has been pressed onto a stop 6 by means of engagement with the support and brake 73. Good guiding of the support 73 and uniform seating of its brake lining on the shaft 1 is achieved by the U-shaped configuration of spring 74. The common mounting 8 of the brake jaws moves in a pendulum fashion on the lever 7 whereby the brake jaws are self-centering and exert a uniform pressure on the shafts of the support rollers.

Process and apparatus for stopping an open-end spinning apparatus

A mechanism for the production of wrapped yarn which consists of a bundle of spun fibers wrapped around a binding thread. A hollow spindle 5 is supported between a pair of delivery rolls 1, 2 and a pair of draw-off rolls 3, 4. A rotating binding thread bobbin 7 is arranged coaxially with the hollow spindle 5 and is enclosed by a housing 8. An air flow which can be generated in the housing and/or introduced into the housing causes the pressure within the housing to be built up so as to prevent fibers and the like from entering an exit hole carried in a cover 80 provided on the housing.

Mechanism for the production of a wrapped yarn

Growing community of inventors

Lenting, Germany

Eugen Hini