ES2912727T3 - Method for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders - Google Patents
Method for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders Download PDFInfo
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- ES2912727T3 ES2912727T3 ES20180924T ES20180924T ES2912727T3 ES 2912727 T3 ES2912727 T3 ES 2912727T3 ES 20180924 T ES20180924 T ES 20180924T ES 20180924 T ES20180924 T ES 20180924T ES 2912727 T3 ES2912727 T3 ES 2912727T3
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- textile machine
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- control loop
- trc
- tension
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/40—Applications of tension indicators
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/30—Devices controlling the forwarding speed to synchronise with supply, treatment, or take-up apparatus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H51/00—Forwarding filamentary material
- B65H51/20—Devices for temporarily storing filamentary material during forwarding, e.g. for buffer storage
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/385—Regulating winding speed
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H59/00—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators
- B65H59/38—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension
- B65H59/384—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by regulating speed of driving mechanism of unwinding, paying-out, forwarding, winding, or depositing devices, e.g. automatically in response to variations in tension using electronic means
- B65H59/388—Regulating forwarding speed
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/30—Handled filamentary material
- B65H2701/31—Textiles threads or artificial strands of filaments
Abstract
Procedimiento para alimentar una pluralidad de hilos a una máquina textil por medio de unos respectivos alimentadores de hilo (12), estando cada uno de dichos alimentadores de hilo (12) provisto de un carrete (14) motorizado sobre el cual se enrolla repetidamente un hilo (F) que está adaptado para ser alimentado a dicha máquina textil (18), modulando una unidad de control (CU) la velocidad de dicho carrete (14) por medio de un primer bucle de control (CL1) sobre la base de una señal de posición de referencia (PS_ref) generada por un segundo bucle de control (CL2) que utiliza una señal de posición de la máquina textil (MP) con el fin de mantener una determinada relación de transmisión (TRC) entre dicho carrete (14) y dicha máquina textil (18), caracterizado por que dicha relación de transmisión (TRC) es corregida automáticamente por un tercer bucle de control (CL3) sobre la base de una señal de tensión medida (T_meas) generada por un sensor de tensión (28) que está asociado a dicho hilo (F).Method for feeding a plurality of threads to a textile machine by means of respective thread feeders (12), each of said thread feeders (12) being provided with a motorized reel (14) on which a thread is wound repeatedly (F) which is adapted to be fed to said textile machine (18), a control unit (CU) modulating the speed of said reel (14) by means of a first control loop (CL1) based on a signal of reference position (PS_ref) generated by a second control loop (CL2) that uses a position signal from the textile machine (MP) in order to maintain a certain gear ratio (TRC) between said reel (14) and said textile machine (18), characterized in that said gear ratio (TRC) is automatically corrected by a third control loop (CL3) based on a measured tension signal (T_meas) generated by a tension sensor (28) that is associated with said thread (F).
Description
DESCRIPCIÓNDESCRIPTION
Procedimiento para alimentar una pluralidad de hilos a una máquina textil mediante unos respectivos alimentadores de hilo positivosMethod for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders
La presente invención se refiere a un procedimiento para alimentar una pluralidad de hilos a una máquina textil por medio de respectivos alimentadores de hilo positivos.The present invention relates to a method for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders.
Tal como se sabe, en un proceso de tejido genérico, se puede alimentar una pluralidad de hilos a una máquina textil por medio de unos respectivos alimentadores de hilo del tipo "positivo".As is known, in a generic weaving process, a plurality of yarns may be fed to a textile machine by means of respective "positive" type yarn feeders.
Este tipo de alimentador está provisto de un carrete motorizado, sobre el cual el hilo se enrolla repetidamente (por ejemplo, 3 o 4 vueltas). Cuando se gira el carrete, el hilo se desenrolla de una bobina y se alimenta a una máquina textil aguas abajo, por ejemplo, una máquina de tejer o una máquina de urdimbre.This type of feeder is provided with a motorized reel, on which the thread is repeatedly wound (for example, 3 or 4 turns). When the spool is turned, the yarn is unwound from a spool and fed to a downstream textile machine, for example a weaving machine or a warping machine.
La tensión del hilo a la salida del alimentador se supervisa de forma continua mediante un sensor de tensión que está conectado a una unidad de control. Esta unidad de control modula la velocidad del carrete de acuerdo con la señal recibida de dicho sensor de tensión, de modo que se mantenga la tensión del hilo alimentado a la máquina textil sustancialmente constante en un nivel deseado, en beneficio de la calidad de la prenda.The yarn tension at the feeder outlet is continuously monitored by a tension sensor that is connected to a control unit. This control unit modulates the speed of the reel according to the signal received from said tension sensor, so that the tension of the thread fed to the textile machine is kept substantially constant at a desired level, to the benefit of the quality of the garment. .
Tal como se sabe, sería preferible medir la tensión del hilo cerca de la máquina textil, aguas abajo de cualquier polea de transmisión y anillos de guía de hilo que pudieran alterar el valor real de la tensión con la que el hilo entra en la máquina textil.As is known, it would be preferable to measure the yarn tension close to the weaving machine, downstream of any drive pulleys and yarn guide rings that could alter the actual value of the tension at which the yarn enters the weaving machine. .
Sin embargo, como se sabe, si únicamente se utiliza esta señal para controlar la velocidad de giro del alimentador, podrían surgir inestabilidades, por ejemplo, durante la fase de puesta en marcha de la máquina textil. De hecho, en esta fase, la tensión del hilo, que aumenta bruscamente cuando se encuentra junto a la máquina textil, puede tardar algún tiempo en distribuirse por la totalidad del hilo, teniendo en cuenta también el hecho de que la longitud del hilo entre el alimentador y la máquina textil puede ser de varias decenas de metros.However, as is known, if only this signal is used to control the speed of rotation of the feeder, instabilities could arise, for example, during the start-up phase of the textile machine. In fact, in this phase, the thread tension, which increases sharply when it is next to the textile machine, may take some time to be distributed throughout the entire thread, also taking into account the fact that the length of the thread between the feeder and textile machine can be several tens of meters.
Como consecuencia, el alimentador podría comenzar demasiado pronto, o comenzar a girar demasiado rápido, más rápido de lo requerido, lo que daría lugar a las inestabilidades mencionadas con anterioridad.As a consequence, the feeder could start too early, or start spinning too fast, faster than required, leading to the instabilities mentioned above.
En un intento de superar dicho problema, el documento EP 1901984 B1 propone utilizar dos sensores de tensión para cada hilo, estando uno de ellos dispuesto a la salida del alimentador mientras que el otro se encuentra dispuesto a la entrada de la máquina textil. La unidad de control, de acuerdo con un algoritmo adaptado, controla el alimentador teniendo en cuenta los valores de tensión medidos por ambos sensores, de modo que se limite el riesgo de que se produzcan inestabilidades.In an attempt to overcome this problem, document EP 1901984 B1 proposes using two tension sensors for each thread, one of them being arranged at the feeder outlet while the other is arranged at the textile machine inlet. The control unit, according to an adapted algorithm, controls the feeder taking into account the voltage values measured by both sensors, so as to limit the risk of instabilities occurring.
Un inconveniente del sistema descrito en el documento EP 1901984 B1 es su elevado coste, ya que prevé utilizar dos sensores de tensión para cada hilo. El documento EP 2754742 A1 describe un procedimiento para alimentar una pluralidad de hilos a una máquina textil de acuerdo con el preámbulo de la reivindicación 1. One drawback of the system described in document EP 1901984 B1 is its high cost, since it provides for the use of two tension sensors for each thread. Document EP 2754742 A1 describes a method for feeding a plurality of yarns to a textile machine according to the preamble of claim 1 .
Especialmente en aplicaciones en las que el consumo de hilo es prácticamente constante o varía muy lentamente, por ejemplo, en la alimentación de hilos a las máquinas de urdimbre, sería deseable disponer de una solución que resulte menos costosa pero que sea capaz de compensar las lentas variaciones de tensión derivadas de factores como:Especially in applications where the yarn consumption is practically constant or varies very slowly, for example in the feeding of yarns to warping machines, it would be desirable to have a solution that is less expensive but is able to compensate for the slow voltage variations derived from factors such as:
- el diámetro progresivamente creciente del tambor de bobinado en la máquina de urdimbre,- the progressively increasing diameter of the winding drum on the warping machine,
- las variaciones de tensión en la rueca aguas arriba del alimentador,- voltage variations on the wheel upstream of the feeder,
- las variaciones en la fricción de los bucles guía de hilo debido al desgaste o al calentamiento,- variations in the friction of the thread guide loops due to wear or heating,
así como otros factores similares.as well as other similar factors.
Por lo tanto, el propósito de la presente invención es proporcionar un procedimiento para alimentar una pluralidad de hilos a una máquina textil por medio de unos respectivos alimentadores de hilo positivos, que permita controlar la tensión con precisión, manteniéndola constante incluso en el caso de variaciones en las condiciones de funcionamiento derivadas de factores como los mencionados anteriormente, pero utilizando un único sensor de tensión que se coloca cercano a la máquina textil, de modo que se reduzcan costes.Therefore, the purpose of the present invention is to provide a method for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders, which allows the tension to be controlled precisely, keeping it constant even in the case of variations. in the operating conditions derived from factors such as those mentioned above, but using a single tension sensor that is placed close to the textile machine, so that costs are reduced.
Este propósito, así como otros objetivos, que se pondrán más claramente de manifiesto a partir de la descripción siguiente, se logran mediante el procedimiento que presenta las características mencionadas en la reivindicación 1 adjunta, mientras que las reivindicaciones dependientes anexas definen otras características de la invención que resultan ventajosas, aunque secundarias. This purpose, as well as other objectives, which will become more clearly apparent from the following description, are achieved by means of the method having the characteristics mentioned in the attached claim 1, while the attached dependent claims define other features of the invention. that are advantageous, although secondary.
A continuación, se describirá la invención con mayor detalle haciendo referencia a una forma de realización preferida, pero no exclusiva de la misma, que se ilustra a título de ejemplo no limitativo en la figura 1, que es un diagrama esquemático de un aparato de alimentación que utiliza el procedimiento según a la invención.Next, the invention will be described in greater detail with reference to a preferred, but not exclusive, embodiment of the same, which is illustrated by way of non-limiting example in Figure 1 , which is a schematic diagram of a feeding apparatus using the method according to the invention.
Haciendo referencia a la figura 1, un aparato alimentador de hilo 10 comprende un alimentador de hilo 12 del tipo "positivo".Referring to Figure 1, a yarn feeder apparatus 10 comprises a yarn feeder 12 of the "positive" type.
El alimentador 12 está provisto de un carrete 14 motorizado, en el que el hilo F se enrolla repetidamente (por ejemplo, 3 o 4 vueltas). Cuando dicho carrete 14 gira, dicho hilo F se desenrolla de una bobina 16 y se alimenta a una máquina textil aguas abajo, por ejemplo, una máquina de urdimbre (que no se muestra en su totalidad) que está provista de un tambor de enrollado de hilo 18.The feeder 12 is provided with a motorized spool 14, on which the thread F is repeatedly wound (eg 3 or 4 turns). When said spool 14 rotates, said yarn F is unwound from a bobbin 16 and fed to a downstream textile machine, for example a warping machine (not shown in its entirety) which is provided with a winding drum of thread 18.
En una forma conocida de por sí, una unidad de control CU modula la velocidad del carrete 14 a través de un primer bucle de control CL1 de acuerdo con una señal de posición de referencia PS_ref.In a manner known per se, a control unit CU modulates the speed of the reel 14 through a first control loop CL1 in accordance with a reference position signal PS_ref.
En detalle, en el primer bucle de control CL1, un codificador 22, que está conectado al motor 24 del alimentador 12, genera una señal de posición real PS_real. Dicha señal de posición real PS_real se compara con la señal de posición de referencia PS_ref en un primer nodo restador N1. El error de posición PS_err derivado de la comparación se envía a un controlador de posición PC que, por medio de un inversor I, acciona el motor 24 en realimentación.In detail, in the first control loop CL1, an encoder 22, which is connected to the motor 24 of the feeder 12, generates an actual position signal PS_real. Said actual position signal PS_actual is compared with the reference position signal PS_ref at a first subtracting node N1. The position error PS_err derived from the comparison is sent to a position controller PC which, via an inverter I, drives the motor 24 in feedback.
El alimentador 12 está programado para accionar el carrete 14 con la máquina de urdimbre 18 según una relación de transmisión dada (conocida como "funcionamiento según un eje eléctrico").The feeder 12 is programmed to drive the spool 14 with the warping machine 18 according to a given gear ratio (known as "electrical axis operation").
Para ello, se genera la señal de posición de referencia PS_ref mediante un segundo bucle de control CL2 que utiliza una señal de posición de la máquina textil MP para mantener la relación de transmisión entre el carrete 14 y la máquina de urdimbre 18 mencionada anteriormente.For this, the reference position signal PS_ref is generated by a second control loop CL2 which uses a position signal from the textile machine MP to maintain the gear ratio between the reel 14 and the warp machine 18 mentioned above.
En la forma de realización descrita en la presente memoria, la señal de posición de la máquina textil MP es generada por medio de un dispositivo de sincronización, por ejemplo, un codificador 26, que se encuentra enclavado en el tambor de enrollado de hilo 18.In the embodiment described herein, the textile machine position signal MP is generated by means of a synchronization device, for example, an encoder 26, which is locked to the yarn winding drum 18.
La señal de posición de la máquina textil MP se envía a un módulo TRM que genera la señal de posición de referencia PS_ref.The position signal from the textile machine MP is sent to a module TRM which generates the reference position signal PS_ref.
En la forma de realización descrita en el presente documento, el módulo TRM se encuentra integrado en la unidad de control CU.In the embodiment described here, the module TRM is integrated in the control unit CU.
Según la invención, la relación de transmisión se corrige automáticamente por un tercer bucle de control CL3 de acuerdo con una señal de tensión medida T_meas generada por un sensor de tensión 28 que está asociado con el hilo F, de modo que se compensen las variaciones lentas de tensión derivadas de factores como:According to the invention, the gear ratio is automatically corrected by a third control loop CL3 according to a measured tension signal T_meas generated by a tension sensor 28 that is associated with the yarn F, so as to compensate for slow variations of tension derived from factors such as:
- el diámetro progresivamente creciente del tambor de enrollado en la máquina de urdimbre,- the progressively increasing diameter of the winding drum on the warping machine,
- las variaciones de tensión en la rueca aguas arriba del alimentador,- voltage variations on the wheel upstream of the feeder,
- las variaciones en la fricción de los bucles de guía de hilo debida al desgaste o al calentamiento, - variations in the friction of the wire guide loops due to wear or heating,
así como otros factores similares.as well as other similar factors.
Ventajosamente, el sensor de tensión 28 está dispuesto directamente aguas arriba de la máquina de urdimbre 18, aguas abajo de cualquier elemento de transmisión, como poleas y anillos de guía de hilo, que se indican esquemáticamente mediante el rectángulo 30 en la figura 1, que pueda alterar el valor real de la tensión con la que el hilo entra en la máquina de urdimbre.Advantageously, the tension sensor 28 is arranged directly upstream of the warping machine 18, downstream of any transmission elements, such as pulleys and yarn guide rings, which are indicated schematically by the rectangle 30 in Figure 1, which can alter the real value of the tension with which the thread enters the warping machine.
En el tercer bucle de control CL3, se compara una señal de tensión de referencia T_ref, que puede configurar el usuario, con la señal de tensión medida T_meas en un segundo nodo restador N2, y se envía el error de tensión T_err derivado de la comparación a un controlador de tensión TC. Como consecuencia, dicho controlador de tensión TC genera una señal de corrección de la relación de transmisión TRC y la envía al módulo TRM, que está programado para generar la señal de posición de referencia PS_ref sobre la base de la relación de transmisión ajustada que, tal como se ha indicado, se corrige progresivamente de forma automática.In the third control loop CL3, a user-configurable reference voltage signal T_ref is compared with the measured voltage signal T_meas at a second subtracting node N2, and the voltage error T_err derived from the comparison is output to a TC voltage controller. As a consequence, said tension controller TC generates a gear ratio correction signal TRC and sends it to the module TRM, which is programmed to generate the reference position signal PS_ref on the basis of the adjusted gear ratio which, perhaps as indicated, it is progressively corrected automatically.
Tal como resulta evidente para el experto en la materia, el tercer bucle de control CL3 puede funcionar a una frecuencia de muestreo relativamente baja, por ejemplo, unos pocos Hz, de modo que resulte insensible a variaciones repentinas de tensión derivadas de factores accidentales. As is evident to those skilled in the art, the third control loop CL3 can operate at a relatively low sampling frequency, for example a few Hz, so that it is insensitive to sudden voltage variations resulting from accidental factors.
Tal como podrá apreciar el experto en la materia, el procedimiento según la invención consigue plenamente el propósito y los objetivos establecidos en el sentido en que, aunque utiliza un único sensor de tensión que se coloca próximo a la máquina textil, permite controlar la tensión con precisión, manteniéndola constante incluso en caso de variaciones en las condiciones de funcionamiento derivadas de factores como los mencionados con anterioridad.As the person skilled in the art will be able to appreciate, the method according to the invention fully achieves the stated purpose and objectives in the sense that, although it uses a single tension sensor that is placed close to the textile machine, it allows the tension to be controlled with accuracy, keeping it constant even in case of variations in the operating conditions derived from factors such as those mentioned above.
Se ha descrito una forma de realización preferida de la invención, pero, obviamente, la persona experta en la técnica puede llevar a cabo diversas modificaciones y variaciones dentro del alcance de protección de las reivindicaciones. A preferred embodiment of the invention has been described, but various modifications and variations can obviously be carried out by the person skilled in the art within the scope of protection of the claims.
Por ejemplo, en lugar del codificador, se puede utilizar un dispositivo de sincronización diferente, por ejemplo, un sensor de proximidad.For example, instead of the encoder, a different timing device can be used, for example a proximity sensor.
Además, aunque en la forma de realización descrita en el presente documento la relación de transmisión se ajusta en la unidad de control, también se puede establecer directamente en el alimentador.Furthermore, although in the embodiment described here the transmission ratio is set in the control unit, it can also be set directly in the feeder.
Cuando las características técnicas mencionadas en cualquier reivindicación vayan seguidas de signos de referencia, dichos signos de referencia se han incluido con el único propósito de aumentar la inteligibilidad de las reivindicaciones y, en consecuencia, dichos signos de referencia no presentan ningún efecto limitativo sobre la interpretación de cada elemento identificado a título de ejemplo por los mismos. When the technical characteristics mentioned in any claim are followed by reference signs, said reference signs have been included for the sole purpose of increasing the intelligibility of the claims and, consequently, said reference signs do not have any limiting effect on the interpretation of each element identified by way of example by them.
Claims (5)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT102019000011448A IT201900011448A1 (en) | 2019-07-11 | 2019-07-11 | METHOD FOR FEEDING A PLURALITY OF YARNS TO A TEXTILE MACHINE BY MEANS OF THEIR POSITIVE YARN FEEDERS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES2912727T3 true ES2912727T3 (en) | 2022-05-27 |
Family
ID=68582144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES20180924T Active ES2912727T3 (en) | 2019-07-11 | 2020-06-18 | Method for feeding a plurality of yarns to a textile machine by means of respective positive yarn feeders |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP3763650B1 (en) |
| CN (1) | CN112209180B (en) |
| ES (1) | ES2912727T3 (en) |
| IT (1) | IT201900011448A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202100017966A1 (en) * | 2021-07-08 | 2023-01-08 | Lgl Electronics Spa | MOTORIZED POSITIVE YARN FEEDER WITH SELECTABLE OPERATING MODE, AND YARN FEEDING EQUIPMENT USING THE SAME. |
| CN116905148A (en) * | 2022-04-20 | 2023-10-20 | 爱吉尔电子股份公司 | Method for feeding a plurality of yarns to a warping machine and device for carrying out the method |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1310749B1 (en) * | 1999-11-30 | 2002-02-22 | Lgl Electronics Spa | METHOD AND CONTROL DEVICE FOR ELECTRIC WEFT BRAKES FOR THE AUTOMATIC ADJUSTMENT OF THE MECHANICAL TENSION OF THE |
| ITMI20020945A1 (en) * | 2002-05-03 | 2003-11-03 | Tiziano Barea | METHOD AND DEVICE FOR THE CONSTANT VOLTAGE SUPPLY AND RECOVERY OF A YARN SUPPLIED TO A TEXTILE MACHINE |
| ATE345303T1 (en) * | 2003-10-04 | 2006-12-15 | Ssm Ag | METHOD AND DEVICE FOR CONTROLLING THREAD TENSION ON A TEXTILE MACHINE, AND APPLICATION OF THE METHOD |
| ITMI20051325A1 (en) | 2005-07-12 | 2007-01-13 | Btsr Int Spa | METHOD AND DEVICE TO ENSURE THE SUPPLY OF A CONSTANT VOLTAGE THREAD WITH A DOUBLE RING ADJUSTMENT TO A TEXTILE MACHINE |
| ES2402743T3 (en) * | 2008-01-17 | 2013-05-08 | B.T.S.R. International S.P.A. | System to control the feeding of a machine with a thread or wire and corresponding procedure |
| EP2186932B1 (en) * | 2008-11-13 | 2012-09-19 | L.G.L. Electronics S.p.A. | Yarn-feeding apparatus for textile machines, with control of the feeding parameters |
| ITTO20110840A1 (en) * | 2011-09-20 | 2013-03-21 | Lgl Electronics Spa | METHOD OF CALIBRATION OF TENSIONED YARN POWER SUPPLIES CONTROLLED ON WEAVING LINES. |
| ITTO20130017A1 (en) * | 2013-01-10 | 2014-07-11 | Lgl Electronics Spa | YARN SUPPLY GROUP FOR TEXTILE MACHINES. |
| EP3103749B1 (en) * | 2015-06-12 | 2019-12-04 | L.G.L. Electronics S.p.A. | Method for controlling the consumption rate of a yarn being unwound from an accumulation feeder toward a textile machine, and apparatus for carrying out such method |
| BE1023220B1 (en) * | 2015-07-03 | 2017-01-03 | Nv Michel Van De Wiele | FEEDING DEVICE FOR SUPPLY OF YARN, METHOD FOR DETERMINING THE YARN VOLTAGE AND USE OF CONTROL MEANS FOR CONTROLLING ACTUATORS FOR SUPPLY OF YARN |
| ITUA20163183A1 (en) * | 2016-05-05 | 2017-11-05 | Btsr Int Spa | METHOD FOR MONITORING AND MONITORING THE POWER OF A WIRE TO A TEXTILE MACHINE AND ITS SUPPLY DEVICE. |
-
2019
- 2019-07-11 IT IT102019000011448A patent/IT201900011448A1/en unknown
-
2020
- 2020-06-18 ES ES20180924T patent/ES2912727T3/en active Active
- 2020-06-18 EP EP20180924.1A patent/EP3763650B1/en active Active
- 2020-07-02 CN CN202010634242.1A patent/CN112209180B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| IT201900011448A1 (en) | 2021-01-11 |
| EP3763650B1 (en) | 2022-03-09 |
| CN112209180A (en) | 2021-01-12 |
| CN112209180B (en) | 2023-08-22 |
| EP3763650A1 (en) | 2021-01-13 |
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