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    • 1. 发明授权
    • Apparatus for regulating the speed of a member delivering or winding a
yarn
    • 用于调节传送或缠绕纱线的部件的速度的装置
    • US4327873A
    • 1982-05-04
    • US46386
    • 1979-06-07
    • Paul JuppetRobert Konopatsky
    • Paul JuppetRobert Konopatsky
    • B65H59/38
    • B65H59/385B65H2701/31H02K2213/09
    • The yarn is formed into a loop and a loop sensor monitors the variations in length in the loop of yarn. The variations in the size of the loop result from a difference in the speed between the speed of the yarn and the speed of the draw-off or delivery member. The draw-off or delivery member is driven by an asynchronous motor having a slip-clutch drive with an assembly for braking in response to eddy currents. In particular, a disc is connected to the motor and a magnetic field is applied to the disc, the magnitude of the field which is applied to the disc directly dependent upon the size of the loop. In the preferred embodiment, the regulation of the speed of a pilot roller of a winder as a function of the delivery speed of the yarn is accomplished.
    • 纱线形成一个回路,环形传感器监测纱线回路长度的变化。 循环尺寸的变化是由于纱线的速度与抽出或传送部件的速度之间的差异导致的。 牵引或释放构件由具有滑动离合器驱动器的异步电动机驱动,其具有响应涡流的制动组件。 特别地,盘连接到电动机并且磁场被施加到盘,直接取决于环的尺寸的磁盘施加到磁盘的大小。 在优选实施例中,实现了作为纱线的输送速度的函数的络纱机的先导辊的速度的调节。