会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 3. 发明授权
    • Method for controlling the tension of the yarn unwinding from a negative yarn-feeder for textile machines, and apparatus for carrying out such method
    • 用于控制用于纺织机器的负喂纱机的纱线退绕张力的方法,以及用于进行这种方法的装置
    • US08086342B2
    • 2011-12-27
    • US12213261
    • 2008-06-17
    • Luca GottiGiovanni Pedrini
    • Luca GottiGiovanni Pedrini
    • G06F19/00
    • D04B15/486B65H59/10B65H2701/31D03D47/34
    • The tension is modulated by a weft-braking device controlled by a tension control block programmed for comparing the measured tension with a reference tension, and for transmitting a braking level signal to the weft-braking device, which braking level signal is adapted to minimize the difference between the measured tension and the reference tension. The yarn consumption speed is calculated, then the yarn consumption speed is compared with a predetermined threshold speed, and if the calculated consumption speed overcomes the predetermined threshold value, the tension control block is enabled, while, if the calculated consumption speed is lower than the threshold value, the tension control block is disabled and the last signal generated by the latter is maintained as braking signal, until the yarn consumption speed overcomes again the threshold value.
    • 由张力控制块控制的纬纱制动装置调节张力,该张力控制块被编程用于将测得的张力与参考张力进行比较,并且用于将制动水平信号发送到纬纱制动装置,该制动水平信号适于使 测量张力与参考张力之间的差异。 计算纱线消耗速度,然后将纱线消耗速度与预定阈值速度进行比较,并且如果计算的消耗速度克服了预定阈值,则张力控制块被启用,而如果计算的消耗速度低于 阈值,张力控制块被禁用,由后者产生的最后一个信号作为制动信号保持,直到纱线消耗速度再次克服阈值。
    • 7. 发明授权
    • Device and method for moving and controlling weft winding arm in weft feeders
    • 纬纱喂纱机纬纱缠绕臂的移动和控制装置及方法
    • US06269844B1
    • 2001-08-07
    • US09668457
    • 2000-09-25
    • Pietro ZenoniGiovanni PedriniLuca Gotti
    • Pietro ZenoniGiovanni PedriniLuca Gotti
    • D03D4736
    • D03D47/367H02P25/08
    • A device for moving and controlling a weft winding arm in weft feeders for weaving looms, comprising a switched-reluctance motor which is controlled by a first closed loop for speed control, having its own reference variable and its own measured variable, and by a second closed loop for controlling the current that circulates in the phase of the motor, also having its own reference variable and its own measured variable; the reference variable of the first loop corresponds to the rotation rate that the winding arm must assume in order to correctly restore the turns of the weft reserve, and the reference variable of the second loop is constituted by a current value computed by the first control loop.
    • 一种用于在用于编织机的纬纱喂料机中移动和控制纬纱缠绕臂的装置,包括由用于速度控制的第一闭环控制的开关磁阻电动机,具有其自己的参考变量和其自身的测量变量,以及第二 用于控制在电动机的相位中循环的电流的闭环,还具有其自己的参考变量和其自身的测量变量; 第一回路的参考变量对应于绕组臂必须承担的旋转速率,以便正确地恢复纬纱储备的匝数,并且第二回路的参考变量由第一控制回路计算的电流值 。
    • 10. 发明申请
    • Method and apparatus for detecting accidental stops of the yarn on a knitting line
    • 用于检测纱线在编织线上的意外停止的方法和装置
    • US20120031148A1
    • 2012-02-09
    • US13067668
    • 2011-06-20
    • Pietro ZenoniGiovanni PedriniLuca Gotti
    • Pietro ZenoniGiovanni PedriniLuca Gotti
    • D04B35/14
    • D04B15/486D04B35/12
    • A knitting line comprises a plurality of yarn feeders from which a downstream machine draws respective yarns. The machine is provided with selection elements adapted to vary the state of selection of the yarn feeders in relation to the angular position of the machine. Each of the yarn feeders is provided with a stationary drum and with a yarn count sensor arranged to generate a pulse per each yarn loop unwound from the drum. A selection signal is periodically sent to the yarn feeders, which is indicative of the state of selection of the individual feeders in relation to the angular position of the machine. For each of the selected feeders, a threshold time interval is continuously calculated, which corresponds to the maximum interval between two successive pulses, above which it should be regarded that an accidental stop of the yarn has occurred, and is updated in real time as a function of the yarn-drawing speed, the delay from the last pulse is continuously measured and compared with the updated threshold time interval, and the downstream machine is stopped when the measured delay exceeds the updated threshold interval.
    • 编织线包括多个喂纱器,下游机器从该喂纱器抽出各纱线。 机器具有选择元件,其适于改变供纱器相对于机器角度位置的选择状态。 每个喂纱器设置有固定鼓,并且纱线计数传感器布置成每个每个纱线环从卷筒展开产生脉冲。 选择信号被周期性地发送到喂纱器,这指示各个进料器相对于机器的角度位置的选择的状态。 对于每个选择的馈线,连续计算阈值时间间隔,其对应于两个连续脉冲之间的最大间隔,其中应该认为已经发生纱线的意外停止,并且被实时更新为 拉丝速度的功能,连续地测量最后脉冲的延迟,并与更新的阈值时间间隔进行比较,并且当测量的延迟超过更新的阈值间隔时,下游机器停止。