公开(公告)号：EP4443252A1

公开(公告)日：2024-10-09

申请号：EP24167372.2

申请日：2024-03-28

申请人： L.G.L. Electronics S.p.A.

发明人： GOTTI, Luca ,  LANFRANCHI, Francesco

IPC分类号： G05B19/409 ,  G05B19/418

CPC分类号： G05B19/4184 ,  G05B19/409 ,  G05B2219/4519320130101

摘要： A setup procedure for configuring a plurality of electronically controlled yarn feeders (YF1, YF2, YF3, ..., YFX) to automatically release respective yarns (Y1, Y2, Y3, ..., YX) in response to requests from a textile machine (W) which sends them, by way of a gateway (G), a status signal (RUN) indicating whether or not it is picking up yarns. The yarn feeders (YF1, YF2, YF3, ..., YFX) implement a monitoring function, which can be disabled by the (G) and by virtue of which they monitor the unwinding of the respective yarn (Y1, Y2, Y3, ..., YX) by means of sensor means (YS1, YS2, YS3, ..., YSX) and, if they detect that there is no unwinding of yarn even though the textile machine (W) is in motion, they generate an alarm message (AL) which is converted by the gateway (G) to a stop signal (STOP) for the textile machine (W). In a setup procedure, with the textile machine (W) at rest, the monitoring function is enabled by the gateway (G) on all the yarn feeders (YF1, YF2, YF3, ..., YFX) associated with the textile machine (W). Then the textile machine (W) is started for a setup cycle, during which the stopping of the textile machine (W) is inhibited, the setup cycle having a duration longer than the maximum time required by the yarn feeders (YF1, YF2, YF3, ..., YFX) to detect the unwinding of yarn. At the end of the setup cycle, the yarn feeders on which the monitoring function is to be disabled are selected based on those that have sent an alarm signal (AL) during the setup cycle, and the monitoring function is disabled on these by means of the gateway (G).

公开(公告)号：EP4074638B1

公开(公告)日：2024-07-17

申请号：EP22162824.1

申请日：2022-03-17

IPC分类号： B65H59/40 ,  D03D47/34 ,  G01L5/106 ,  D03D47/36 ,  G01L5/102

CPC分类号： B65H59/40 ,  D03D47/34 ,  G01L5/106 ,  B65H2701/3120130101 ,  D03D47/361 ,  G01L5/102

公开(公告)号：EP3392384B1

公开(公告)日：2020-11-25

申请号：EP18161943.8

申请日：2018-03-15

申请人： L.G.L. Electronics S.p.A.

发明人： BERTOCCHI, Giorgio ,  ZENONI, Pietro

IPC分类号： D03D47/36 ,  D04B15/48

公开(公告)号：EP3403961A1

公开(公告)日：2018-11-21

申请号：EP18167173.6

申请日：2018-04-13

申请人： L.G.L. Electronics S.p.A.

发明人： BERTOCCHI, Giorgio ,  ZENONI, Pietro

IPC分类号： B65H63/028 ,  D04B35/14

摘要： A yarn breakage sensor for textile apparatuses, which comprises:
- a body (20),
- a rod (24) which is adapted to engage the yarn (Y) with a portion (24a) thereof and is pivoted to the body (20) about an axis (A) in order to rotate from a first position to a second position following yarn breakage,
- detection means, comprising a first detection element (30) which is integral with the rod (24) and a second detection element (32) which is integral with the body (20) and is arranged substantially along the trajectory of the first detection element (30) in order to face it, with the rod (24) in said second position, and generate a corresponding breakage signal, either said first detection element (30) or said second detection element (32) is supported in a position that can be adjusted substantially along the trajectory of the first detection element (30) by adjustable support means (36).

公开(公告)号：EP3392384A1

公开(公告)日：2018-10-24

申请号：EP18161943.8

申请日：2018-03-15

申请人： L.G.L. Electronics S.p.A.

发明人： BERTOCCHI, Giorgio ,  ZENONI, Pietro

IPC分类号： D03D47/36

CPC分类号： D03D47/366

摘要： A yarn feeder (10) provided with a drum (12) which supports, wound thereon, a yarn (Y) which can be unwound upon request of a downstream machine, an annular braking body (16) is coaxially pushed against an output end (12a) of the drum (12) by actuation means (18) which act axially; an articulated joint (24) is functionally interposed between the actuation means (18) and the braking body (16); the weight of the braking body (16) generates a torque about at least one articulation axis (X, Z) of the joint (24), against which elastic means (34) act which are functionally associated with the joint (24).

公开(公告)号：EP3339487A1

公开(公告)日：2018-06-27

申请号：EP17205244.1

申请日：2017-12-04

申请人： L.G.L. Electronics S.p.A.

发明人： GOTTI, Luca ,  ZENONI, Pietro

IPC分类号： D03D47/36

CPC分类号： D03D47/369 ,  D03D47/367

摘要： A loom (T) receives multiple yarns (C1, C2, ..., C5) from respective feeders (Fl, F2, ..., F5) which are activated alternately according to a preestablished pattern, each feeder having associated with it a first identification value (NFdr) which corresponds to its operative position with respect to the loom, a feeder-specific second identification value (NFdrPP), a sensor (Q) that detects the unwinding of yarn, and a control unit (SPDREG) that adjusts the operation of the feeder on the basis of a signals received from the sensor (Q), the loom (T) periodically sends to the feeders (Fl, F2, ..., F5) messages (PPMsg0, PPMsgl, ..., PPMsg5) which contain preview selection information related to the second identification value (NfdrPP); the control unit (SPDREG) monitors in real time the amount of yarn unwound from the feeder by way of the sensor (Q) and, if it exceeds a preestablished threshold (MinPuls) for a preestablished minimum number of insertions (M), it automatically sets the second identification value (NFdrPP) to the first identification value (Nfdr).

公开(公告)号：EP3012608A1

公开(公告)日：2016-04-27

申请号：EP15187693.5

申请日：2015-09-30

申请人： L.G.L. Electronics S.p.A.

发明人： BERTOCCHI, Giorgio ,  GOTTI, Luca ,  ZENONI, Pietro

IPC分类号： G01L5/10

摘要： A contact element (19) which is adapted to be slideably engaged by a yarn (Y) is moveably sustained with respect to a support (12) in relation to the fluctuations of tension of the yarn (Y), the contact element (19) being integral with a reference element (32) which is made of a conductive material and operatively faces a spiral coil (18a, 18b) driven by a control unit (16) in order to generate a magnetic field of constant strength, which interacts with the reference element (32) in such a manner that the inductance (L(d)) and the resistance (R(d)) of the spiral coil (18a, 18b) vary as a function of the distance from the reference element (32), the control unit being programmed to calculate the tension of the yarn as a function of the variations of inductance (L(d)) and of resistance (R(d).

摘要翻译： 接触元件（19）适于与纱线（Y）可滑动地接合，相对于纱线（Y），接触元件（19）的张力波动相对于支撑件（12）可动地保持， 与由导电材料制成并且可操作地面对由控制单元（16）驱动的螺旋线圈（18a，18b）的参考元件（32）成一体，以便产生恒定强度的磁场，其与 参考元件（32）以使得螺旋线圈（18a，18b）的电感（L（d））和电阻（R（d））作为与参考元件（32）的距离的函数而变化， ，控制单元被编程为根据电感（L（d））和电阻（R（d））的变化来计算纱线的张力。

公开(公告)号：EP2924156A1

公开(公告)日：2015-09-30

申请号：EP15000072.7

申请日：2015-01-14

申请人： L.G.L. Electronics S.p.A.

发明人： Bertocchi, Giorgio ,  Zenoni, Pietro

IPC分类号： D03D47/36 ,  D04B15/48

CPC分类号： D03D47/364 ,  D04B15/482

摘要： A first braking plate (32) is adapted to be coaxilly fixed to a delivery end of a drum (12). A second braking plate (40) is coaxially biased against the first one by elastic means (48) operatively engaged between the second braking plate (40) and an abutment (50). The yarn (Y) runs between the braking plates (36, 44), thereby receiving a braking action by friction depending on the pre-load of the elastic means. The abutment (50, 150) is operatively connected to a motor (54, 154), via rotary-to-translatory motion conversion means (58a, 64a, 150a, 151), for shifting in a direction such as the pre-load is varied. The motor (54, 154) is driven by a control unit (CU, CU') which modulates the pre-load in such a way as to maintain the tension of the yarn (Y) substantially constant on a desired level, on the basis of a signal generated by a tension sensor (70, 170) interacting with the yarn unwinding from the feeder.

摘要翻译： 第一制动板（32）适于同轴地固定到滚筒（12）的输送端。 第二制动板（40）通过可操作地接合在第二制动板（40）和基台（50）之间的弹性装置（48）与第一制动板（40）同轴地偏压。 纱线（Y）在制动板（36,44）之间延伸，从而根据弹性装置的预加载力，通过摩擦接受制动作用。 通过旋转平移运动转换装置（58a，64a，150a，151）将基台（50,150）可操作地连接到电动机（54,154），用于沿预加载方向 多变。 电动机（54,154）由控制单元（CU，CU'）驱动，控制单元（CU，CU'）以预定水平基本上保持纱线（Y）的张力基本恒定的方式调节预负荷 由与从进料器退绕的纱线相互作用的张力传感器（70,170）产生的信号。

公开(公告)号：EP2853626A1

公开(公告)日：2015-04-01

申请号：EP14002114.8

申请日：2014-06-18

申请人： L.G.L. Electronics S.p.A.

发明人： Zenoni, Pietro ,  Castelli, Rosario

IPC分类号： D03D47/36 ,  B65H59/22

摘要： A drum (12) has a plurality of yarn loops (Y) wound thereon, which are adapted to be unwound from a delivery end (12r) of the drum (12) upon request from a downstream machine (L). A thin-walled, hollow braking member (18) has a substantially frustoconical profile yielding elastically in the radial direction, which is biased to coaxially engage the delivery end (12r) of the drum (12) with its inner surface by elastic means (20) under tension between a stationary support (22) and the braking member (18). The braking member (18) is rotatably supported about its axis with respect to the stationary support (22) by a rolling bearing (26) which is operatively interposed between the braking member (18) and the elastic means (20).

摘要翻译： 鼓（12）具有缠绕在其上的多个纱线圈（Y），其适于根据来自下游机器（L）的请求从滚筒（12）的输送端（12r）退绕。 薄壁中空的制动构件（18）具有基本上截头圆锥形的轮廓，其在径向方向上弹性地产生，该径向方向被偏压以与其内表面通过弹性装置（20）同轴地接合滚筒（12）的输送端（12r） ）在固定支撑件（22）和制动构件（18）之间的张力下。 制动构件（18）通过可操作地插入在制动构件（18）和弹性装置（20）之间的滚动轴承（26）围绕其轴线相对于固定支撑件（22）可旋转地支撑。

公开(公告)号：EP2829647A1

公开(公告)日：2015-01-28

申请号：EP14001766.6

申请日：2014-05-20

申请人： L.G.L. Electronics S.p.A.

发明人： Bertocchi, Giorgio ,  Pedrini, Giovanni

IPC分类号： D03D47/34 ,  B65H59/30 ,  D03D47/36 ,  D04B15/44 ,  D04B15/48

CPC分类号： D03D47/347 ,  B65H59/30 ,  B65H2701/31 ,  D03D47/366 ,  D04B15/44 ,  D04B15/484

摘要： A drum (12) has a yarn (Y) wound thereon which is adapted to be unwound upon request of a downstream textile machine. A passive weft-braking device (22) exerts a predetermined, uncontrolled braking action upon the yarn (Y). A controlled weft-braking device (24) arranged downstream of the passive weft-braking device (22) is provided with a first series of comb-like arranged prongs (36) and with a second series of comb-like arranged prongs (40) inserted in an alternated configuration between the prongs (36) of the first series. The yarn (Y) runs in a zig-zag manner between the two series of prongs (36, 40) and receives a braking action by friction from them, which changes in strength depending on their relative position. A motor (46) drives the second series of prongs (40) with respect to the first one for adjusting the strength of the braking action. A tension sensor (50) measures the tension of the yarn (Y) unwinding from the drum (12) and generates a corresponding tension signal (T). A control unit (CU) controls the motor (46) by feedback based on the tension signal (T), in such a way as to stabilize the tension of the yarn (Y) on a desired level.

摘要翻译： 鼓（12）具有缠绕在其上的纱线（Y），其适于根据下游纺织机器的要求展开。 无源纬纱制动装置（22）对纱线（Y）施加预定的不受控制的制动作用。 设置在无源纬纱制动装置（22）下游的受控纬纱制动装置（24）设置有第一系列梳状布置叉（36）和第二系列梳状布置叉（40）， 以第一系列的插脚（36）之间的交替配置插入。 纱线（Y）以锯齿形的方式在两系列插脚（36,40）之间延伸，并且通过它们的摩擦接收制动动作，这取决于它们的相对位置而改变强度。 电动机（46）相对于第一系列（40）驱动第二系列插脚（40），用于调节制动动作的强度。 张力传感器（50）测量从滚筒（12）退绕的纱线（Y）的张力并产生相应的张力信号（T）。 控制单元（CU）通过基于拉伸信号（T）的反馈来控制马达（46），以使纱线（Y）的张力稳定在期望的水平。