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    • 4. 发明申请
    • Random lay wire twisting machine
    • 随机绞线机
    • US20010032448A1
    • 2001-10-25
    • US09815939
    • 2001-03-23
    • John Doherty
    • D01H001/04
    • D07B3/10D07B2201/2026D07B2301/251D07B2301/3533H01B13/0221
    • A wire twisting machine and method provide a randomly varying lay to pairs of twisted wires forming a cable. A pair of wires are fed into a motor driven bow mechanism which twists the wires at a given rate of speed. The bow winding speed is sensed to provide a signal to a control system employing a computer which generates a randomly varying signal between a selected minimum and maximum range. The random signal is applied to an oscillator which provides a varying frequency signal to a power supply unit. A pulsed direct voltage signal then controls a stepping motor which applies the randomly varying lay signal to vary the speed of the capstan winding the wires with respect to the independent bow speed. This varies the length of lay of the twisted wires within controlled limits.
    • 线捻机和方法为形成电缆的绞合线对提供随机变化的布置。 一对电线被馈送到马达驱动的弓形机构中,其以给定的速度扭转电线。 感测弓形卷绕速度以向采用计算机的控制系统提供信号,该计算机在选定的最小和最大范围之间产生随机变化的信号。 随机信号被施加到向电源单元提供变化的频率信号的振荡器。 然后,脉冲直流电压信号控制步进电机,其施加随机变化的铺设信号以改变相对于独立弓速度缠绕线的绞盘的速度。 这将扭绞线的长度在受控范围内变化。