SHEDDING DEFECT ANALYSER

摘要

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.