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    • 2. 发明授权
    • Device for detecting and repairing yarn defects in a warper
    • 在整经机中检测和修理纱线缺陷的装置
    • US5437082A
    • 1995-08-01
    • US44292
    • 1993-04-07
    • Koyu Maenaka
    • Koyu Maenaka
    • D02H13/00B65H54/00D02H3/00
    • D02H13/00
    • A defective yarn repairing device of a warper, the defective yarn repairing device comprising a yarn detecting device for detecting a defective yarn contained in a warp; a yarn pulling device for pulling out the defective yarn from the warp; and a positioning device which has a knotter and positions the defective yarn pulling device at the position corresponding to the ascertained location of the defective yarn, wherein the positioning device causes the defective yarn pulling device to be moved in the widthwise direction of the warp; the defective yarn detecting device stops upon ascertaining the location of a defective yarn; the defective yarn pulling device pulls out the detected defective yarn from the warp; and wherein the knotter repairs the fluffy yarn.
    • 整形机有缺陷的纱线修复装置,该有缺陷的纱线修复装置包括用于检测包含在经纱中的缺陷纱线的纱线检测装置; 用于从经纱中拉出有缺陷的纱线的纱线牵引装置; 以及定位装置,其具有打结器,并且将所述不良纱线牵引装置定位在与所述有缺陷纱线的确定位置相对应的位置,其中所述定位装置使所述有缺陷的纱线牵引装置沿所述经线的宽度方向移动; 有缺陷的纱线检测装置在确定有缺陷纱线的位置时停止; 有缺陷的纱线牵引装置从经纱拉出检测到的有缺陷的纱线; 并且其中打结者修理蓬松的纱线。
    • 6. 发明授权
    • Weft yarn storing device
    • 纬纱储存装置
    • US4739942A
    • 1988-04-26
    • US100240
    • 1987-09-23
    • Koyu Maenaka
    • Koyu Maenaka
    • H02P3/18B65H51/22D03D47/34D03D47/36B65H51/20
    • D03D47/362D03D47/363
    • A weft yarn storing device having a rotary yarn guide for winding a weft yarn on a measuring and storing drum, a motor for driving said rotary yarn guide for rotation, which comprises a controller. The controller comprises a frequency pattern generator which generates, upon the reception of a start signal, a control frequency signal of a control frequency pattern having a creep of a low frequency in a deceleration period in which the motor is decelerated; a voltage pattern generator which generates a control voltage signal corresponding to the frequency of the control frequency signal; a pulse width modulating unit which generates a pulse width modulated signal on the basis of the control frequency signal and the control voltage signal; and a driver which applies a DC voltage intermittently to the motor according to the output signal of the PWM unit.
    • 一种纬纱存储装置,具有用于将纬纱卷绕在测量和存储滚筒上的旋转导纱器,用于驱动所述旋转导纱器旋转的马达,其包括控制器。 控制器包括频率模式发生器,其在接收到起动信号时,产生在电动机减速的减速时段内具有低频蠕变的控制频率模式的控制频率信号; 电压模式发生器,其生成与控制频率信号的频率对应的控制电压信号; 脉冲宽度调制单元,其基于控制频率信号和控制电压信号生成脉宽调制信号; 以及根据PWM单元的输出信号向电动机间歇地施加直流电压的驱动器。