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1. 发明授权

US06356048B1 Method and device for controlling electric motors of the brushless direct-current type, particularly for moving the weft winding arm in weft feeders for weaving looms 有权
标题翻译：用于控制无刷直流电动机的方法和装置，特别是用于在编织机的纬纱馈线中移动纬纱缠绕臂
公开(公告)号：US06356048B1
公开(公告)日：2002-03-12
申请号：US09565747
申请日：2000-05-08
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： H02P528
CPC分类号： D03D47/361 , H02P6/182
摘要： The method consists in determining the angular positions of the rotor, which are useful for switching the phase currents, by deducing them from the sampled reading of the phase voltages, and in measuring the current of each phase by deriving it from the detection of the voltage that is present across a shunt resistor inserted on the negative power supply conductor of the three-phase star bridge of the driving inverter that generates the set of three phase voltages supplied to the motor.
摘要翻译：该方法在于通过从相电压的采样读数中推断出转子相位电流有用的转子角位置，以及通过从相电压检测中得出每相的电流，它分布在驱动逆变器的三相星形桥的负电源导体上的分流电阻上，产生提供给电动机的三相电压。

2. 发明申请

US20110000306A1 Method for detecting the stop of the yarn unwinding from a yarn feeder provided with a stationary drum 有权
标题翻译：用于检测从设置有静止鼓的给纱机退绕纱线停止的方法
公开(公告)号：US20110000306A1
公开(公告)日：2011-01-06
申请号：US12801762
申请日：2010-06-24
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： G01N19/06
CPC分类号： D04B35/12
摘要： In order to detect the stop of the yarn unwinding from a yarn feeder provided with a stationary drum and with a sensor generating a pulse per each yarn loop unwound from the drum, a threshold time interval is continuously computed, 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. The threshold time interval is updated in real time as a function of the yarn-drawing speed. Then the delay from the last pulse is continuously measured and compared with the updated threshold time interval. The machine is stopped when the measured delay overcomes the updated threshold interval.
摘要翻译：为了检测从设置有静止滚筒的给纱机退绕的纱线的停止以及每个从滚筒上退绕的纱线循环产生脉冲的传感器，连续地计算阈值时间间隔，其对应于两个连续的脉冲，其中应该认为发生了纱线的意外停止。作为拉丝速度的函数，阈值时间间隔被实时更新。然后连续测量最后一个脉冲的延迟，并将其与更新的阈值时间间隔进行比较。当测量的延迟克服更新的阈值间隔时，机器停止。

3. 发明授权

US06269844B1 Device and method for moving and controlling weft winding arm in weft feeders 有权
标题翻译：纬纱喂纱机纬纱缠绕臂的移动和控制装置及方法
公开(公告)号：US06269844B1
公开(公告)日：2001-08-07
申请号：US09668457
申请日：2000-09-25
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： D03D4736
CPC分类号： D03D47/367 , H02P25/08
摘要： 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.
摘要翻译：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。

4. 发明授权

US08397582B2 Method for detecting the stop of the yarn unwinding from a yarn feeder provided with a stationary drum 有权
标题翻译：用于检测从设置有静止鼓的给纱机退绕纱线停止的方法
公开(公告)号：US08397582B2
公开(公告)日：2013-03-19
申请号：US12801762
申请日：2010-06-24
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： G01N19/06
CPC分类号： D04B35/12
摘要： In order to detect the stop of the yarn unwinding from a yarn feeder provided with a stationary drum and with a sensor generating a pulse per each yarn loop unwound from the drum, a threshold time interval is continuously computed, 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. The threshold time interval is updated in real time as a function of the yarn-drawing speed. Then the delay from the last pulse is continuously measured and compared with the updated threshold time interval. The machine is stopped when the measured delay overcomes the updated threshold interval.
摘要翻译：为了检测从设置有静止滚筒的给纱机退绕的纱线的停止以及每个从滚筒上退绕的纱线循环产生脉冲的传感器，连续地计算阈值时间间隔，其对应于两个连续的脉冲，其中应该认为发生了纱线的意外停止。作为拉丝速度的函数，阈值时间间隔被实时地更新。然后连续测量最后一个脉冲的延迟，并将其与更新的阈值时间间隔进行比较。当测量的延迟克服更新的阈值间隔时，机器停止。

5. 发明授权

US08340805B2 Method and apparatus for detecting accidental stops of the yarn on a knitting line 有权
公开(公告)号：US08340805B2
公开(公告)日：2012-12-25
申请号：US13067668
申请日：2011-06-20
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： G06F19/00
CPC分类号： D04B15/486 , D04B35/12
摘要： 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.

6. 发明申请

US20120031148A1 Method and apparatus for detecting accidental stops of the yarn on a knitting line 有权
标题翻译：用于检测纱线在编织线上的意外停止的方法和装置
公开(公告)号：US20120031148A1
公开(公告)日：2012-02-09
申请号：US13067668
申请日：2011-06-20
申请人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
发明人： Pietro Zenoni , Giovanni Pedrini , Luca Gotti
IPC分类号： D04B35/14
CPC分类号： D04B15/486 , D04B35/12
摘要： 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.
摘要翻译：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。

7. 发明申请

US20070018027A1 Yarn-recovering device for textile machines 有权
标题翻译：纺织机器纱线回收装置
公开(公告)号：US20070018027A1
公开(公告)日：2007-01-25
申请号：US11453861
申请日：2006-06-16
申请人： Rosario Castelli , Pietro Zenoni , Luca Gotti
发明人： Rosario Castelli , Pietro Zenoni , Luca Gotti
IPC分类号： B65H75/44
CPC分类号： D04B15/48
摘要： A yarn recovering device for textile machines, arranged upstream of a textile machine for temporarily recovering a length of yarn previously fed to the machine, and for returning it subsequently. A motorized reel has a substantially axial inlet port and an outlet port on its lateral surface, with a passage for the yarn between the ports. The reel is operatable to rotate from a resting configuration, in which it is kept still, to an active, yarn-recovenng configuration, in which it is driven in one direction for winding the yarn on itself and recovering it from the machine, to a subsequent active, yarn-unwinding configuration, in which it is driven in the opposite direction for unwinding the yarn from itself and returning it to the machine. A position sensor measures the position of the reel and sends a corresponding measured position signal to a position: control loop which compares the measured position signal with a reference position signal corresponding to a desired position for the motorized reel, and drives the reel in such a way as to minimize the difference between the measured position and the desired position.
摘要翻译：一种用于纺织机器的纱线回收装置，其布置在纺织机的上游，用于暂时恢复预先供给到机器的一定长度的纱线，并随后返回。电动卷轴在其侧表面上具有基本上轴向的入口端口和出口端口，在端口之间具有用于纱线的通道。卷轴可操作以从保持静止状态的静止构型旋转到主动的纱线回复构造，其中其沿一个方向被驱动以将纱线卷绕在自身上并将其从机器回收到随后的主动的，放纱结构，其中它沿相反方向驱动，用于将纱线自身退绕并将其返回到机器。位置传感器测量卷轴的位置并将相应的测量位置信号发送到位置：控制回路，其将测量的位置信号与对应于电动卷轴的期望位置的参考位置信号进行比较，并将卷轴驱动在以便最小化测量位置和期望位置之间的差异。

8. 发明授权

US06752177B2 Self-adjusting braking device for weft feeders 有权
标题翻译：纬纱自动调节制动装置
公开(公告)号：US06752177B2
公开(公告)日：2004-06-22
申请号：US10086687
申请日：2002-03-04
申请人： Pietro Zenoni , Rosario Castelli , Giovanni Pedrini
发明人： Pietro Zenoni , Rosario Castelli , Giovanni Pedrini
IPC分类号： D03D4736
CPC分类号： D03D47/364
摘要： A self-adjusting braking device for weft feeders, comprising a frustum-shaped braking body that acts on a thread, is suspended elastically in front of the drum of the feeder and is pushed into elastic tangent contact with the drum along an exit circumference of the drum. The braking body has, at a larger-diameter region thereof designed to make contact with the drum, a discontinuous annular contact element, with a plurality of through slits which are arranged so as to be equidistant and delimit a row of contact laminas.
摘要翻译：一种用于纬纱喂料机的自调节制动装置，包括作用在螺纹上的截头锥形制动体，弹性地悬挂在进料器的滚筒的前面，并沿着滚筒的出口圆周被推动成与滚筒的弹性切线接触鼓。制动体在设计成与鼓接触的较大直径区域处具有不连续的环形接触元件，其具有多个通孔，其布置成等距并限定一排接触片。

9. 发明授权

US08356765B2 Positive yarn feeder with tension limiter 有权
公开(公告)号：US08356765B2
公开(公告)日：2013-01-22
申请号：US12654407
申请日：2009-12-18
申请人： Pietro Zenoni , Giovanni Pedrini , Rosario Castelli
发明人： Pietro Zenoni , Giovanni Pedrini , Rosario Castelli
IPC分类号： B65H59/36 , B65H51/20
CPC分类号： B65H51/20 , B65H59/36 , D04B15/48
摘要： A motorized yarn-winding drum holds a plurality of loops of yarn wound thereon and is driven to rotate for drawing said yarn from a reel and feeding it to a general downstream machine. A movable guiding member is biased to slideably engage the yarn unwinding from the drum and to deviate its path, by a spring acting in contrast to the tension of the yarn, thereby generating a reserve releasable in response to tension peaks on the yarn. The stroke of the guiding member is limited by a stop defining a position of maximum deviation of the yarn. The spring has one end operatively connected to the guiding member and one opposite end connected to driving elements operable for applying a load to the spring, with the guiding member abutting against said stop. The driving elements are controlled by a control unit which is programmed to adjust the load as a function of a desired feeding tension.

10. 发明授权

US5613528A Device and method for monitoring the thread reserve in weft feeders 失效
标题翻译：用于监测纬纱喂料机纱线储备的装置和方法
公开(公告)号：US5613528A
公开(公告)日：1997-03-25
申请号：US555694
申请日：1995-11-14
申请人： Pietro Zenoni , Luca Gotti
发明人： Pietro Zenoni , Luca Gotti
IPC分类号： B65H51/22 , D03D47/36
CPC分类号： D03D47/367
摘要： A weft feeder comprising weft sensors with movable magnetic elements that cooperate with respective detectors located outside the feeder drum; the detectors react with a signal, without contact, when the position of the corresponding weft sensor changes. Each detector in turn comprises an acquisition sensor capable of providing an analog signal, in terms of voltage, that can vary in a linear manner as the angular positions of the movable magnetic elements of the weft sensors vary. The acquisition sensors are operatively connected to a microprocessor for controlling the motor of the feeder, which is programmed to automatically set the values of the weft presence threshold and of the weft absence threshold and to filter the values of said signals.
摘要翻译：一种纬纱喂料器，包括具有可移动磁性元件的纬纱传感器，其与位于进料器滚筒外部的相应检测器配合; 当相应纬纱传感器的位置发生变化时，检测器与信号反应，无接触。每个检测器又包括采集传感器，其能够提供按电压方式的模拟信号，其可以以纬线传感器的可移动磁性元件的角位置变化的线性方式变化。采集传感器可操作地连接到微处理器，用于控制馈送器的电动机，其被编程为自动设置纬纱存在阈值和纬纱缺失阈值的值，并对所述信号的值进行滤波。

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