公开(公告)号：US20060237567A1

公开(公告)日：2006-10-26

申请号：US11378345

申请日：2006-03-20

申请人： Rosario Castelli ,  Luca Gotti ,  Andrea Gotti

发明人： Rosario Castelli ,  Luca Gotti ,  Andrea Gotti

IPC分类号： B65H51/20

CPC分类号： D04B15/48 ,  D03D47/361 ,  H02K21/16 ,  H02K21/24 ,  H02K29/08

摘要： The yarn-feeder comprises a reel (R) having loops of yarn wound thereon and driven by a permanent-magnet, synchronous brushless motor to draw the yarn from a spool (RO) and to feed it to a textile machine arranged downstream (MF). The motor (M, M′) comprises a stator (STA, STA′) consisting of a substantially cylindrical, hollow housing having at least three elongated pole shoes (E1-E3, E1′-E3′) having respective excitation coils wound thereon (A, B, C, A′, B′, C′), and a rotor comprising a magnetic member having a circular profile with alternating poles, which is coaxially supported on the driving shaft (AM, AM′) near the coils.

摘要翻译： 喂纱机包括卷绕在其上并由永久磁铁同步无刷马达驱动的纱线卷轴（R），以从卷轴（RO）中抽出纱线并将其送入布置在下游（MF）的纺织机器上， 。 马达（M，M'）包括由基本上圆柱形的中空壳体组成的定子（STA，STA'），其具有至少三个细长的极靴（E 1 -E 3，E 1'-E 3'），其具有相应的激励 卷绕在其上的线圈（A，B，C，A'，B'，C'）和包括具有交替极的圆形轮廓的磁性构件的转子，其同轴地支撑在驱动轴（AM，AM'）附近 线圈。

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。

公开(公告)号：US07584014B2

公开(公告)日：2009-09-01

申请号：US11455830

申请日：2006-06-20

申请人： Andrea Gotti ,  Luca Gotti

发明人： Andrea Gotti ,  Luca Gotti

IPC分类号： G06F19/00

CPC分类号： D03D47/366

摘要： A control unit for yarn-braking devices in weft feeders for looms, in which the yarn unwinding from the feeder is pressed between a drum and a braking member connected to two linear actuators controlled by position and provided with position sensors. A position control loop receives a position signal from the sensor and compares it with a reference variable in a subtracter for obtaining a position error. A position compensator receives the position error and outputs a reference current entering a current control loop connected to generate a voltage that supplies the actuator. The compensator incorporates a control transfer function that is variable as a function of an elastic constant of a mass-spring equivalent system, where the mass is the mass of the parts in motion between the braking member and the actuators, and the elastic constant matches with the elastic constant of the elastic elements.

摘要翻译： 用于织机的纬纱喂纱器中的纱线制动装置的控制单元，其中从送料器退绕的纱线被压在连接到由位置控制并设置有位置传感器的两个线性致动器的鼓和制动构件之间。 位置控制回路从传感器接收位置信号并将其与减法器中的参考变量进行比较，以获得位置误差。 位置补偿器接收位置误差并输出进入连接的电流控制回路的参考电流，以产生供应致动器的电压。 补偿器包括作为质量弹簧等效系统的弹性常数的函数可变的控制传递函数，其中质量是制动构件和致动器之间运动的部件的质量，并且弹性常数与 弹性元素的弹性常数。

公开(公告)号：US20070028989A1

公开(公告)日：2007-02-08

申请号：US11455830

申请日：2006-06-20

申请人： Andrea Gotti ,  Luca Gotti

发明人： Andrea Gotti ,  Luca Gotti

IPC分类号： D03D25/00

CPC分类号： D03D47/366

摘要： A control unit for yarn-braking devices in weft feeders for looms, in which the yarn unwinding from the feeder is pressed between a drum and a braking member connected to two linear actuators controlled by position and provided with position sensors. A position control loop receives a position signal from the sensor and compares it with a reference variable in a subtracter for obtaining a position error. A position compensator receives the position error and outputs a reference current entering a current control loop connected to generate a voltage that supplies the actuator. The compensator incorporates a control transfer function that is variable as a function of an elastic constant of a mass-spring equivalent system, where the mass is the mass of the parts in motion between the braking member and the actuators, and the elastic constant matches with the elastic constant of the elastic elements.

摘要翻译： 用于织机的纬纱喂纱器中的纱线制动装置的控制单元，其中从送料器退绕的纱线被压在连接到由位置控制并设置有位置传感器的两个线性致动器的鼓和制动构件之间。 位置控制回路从传感器接收位置信号并将其与减法器中的参考变量进行比较，以获得位置误差。 位置补偿器接收位置误差并输出进入连接的电流控制回路的参考电流，以产生供应致动器的电压。 补偿器包括作为质量弹簧等效系统的弹性常数的函数可变的控制传递函数，其中质量是制动构件和致动器之间运动的部件的质量，并且弹性常数与 弹性元素的弹性常数。

公开(公告)号：US07721574B2

公开(公告)日：2010-05-25

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： D04B15/46

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-recovering 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收结构，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，该位置控制回路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，并以这种方式驱动卷轴 以便最小化测量位置和期望位置之间的差异。

公开(公告)号：US20090057464A1

公开(公告)日：2009-03-05

申请号：US12213261

申请日：2008-06-17

申请人： Luca Gotti ,  Giovanni Pedrini

发明人： Luca Gotti ,  Giovanni Pedrini

IPC分类号： B65H51/20 ,  B65H23/16

CPC分类号： D04B15/486 ,  B65H59/10 ,  B65H2701/31 ,  D03D47/34

摘要： 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.

摘要翻译： 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，并且如果计算出的消耗速度超过预定阈值，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。

公开(公告)号：US08086342B2

公开(公告)日：2011-12-27

申请号：US12213261

申请日：2008-06-17

申请人： Luca Gotti ,  Giovanni Pedrini

发明人： Luca Gotti ,  Giovanni Pedrini

IPC分类号： G06F19/00

CPC分类号： D04B15/486 ,  B65H59/10 ,  B65H2701/31 ,  D03D47/34

摘要： 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.

摘要翻译： 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。

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。

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 。

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。