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EP2029465B1 - Procédé de fonctionnement du poste de travail d'une machine textile produisant des bobines croisées - Google Patents

Procédé de fonctionnement du poste de travail d'une machine textile produisant des bobines croisées Download PDF

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Publication number
EP2029465B1
EP2029465B1 EP07725394.6A EP07725394A EP2029465B1 EP 2029465 B1 EP2029465 B1 EP 2029465B1 EP 07725394 A EP07725394 A EP 07725394A EP 2029465 B1 EP2029465 B1 EP 2029465B1
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EP
European Patent Office
Prior art keywords
suction nozzle
thread end
end receiving
receiving position
bobbin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP07725394.6A
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German (de)
English (en)
Other versions
EP2029465A1 (fr
Inventor
Hans-Günter Wedershoven
Stefan Bungter
Manfred Mund
Bernd-Rüdiger Theele
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Saurer Spinning Solutions GmbH and Co KG
Original Assignee
Saurer Germany GmbH and Co KG
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Publication date
Application filed by Saurer Germany GmbH and Co KG filed Critical Saurer Germany GmbH and Co KG
Publication of EP2029465A1 publication Critical patent/EP2029465A1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H67/00—Replacing or removing cores, receptacles, or completed packages at paying-out, winding, or depositing stations
    • B65H67/08—Automatic end-finding and material-interconnecting arrangements
    • B65H67/081—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement
    • B65H67/085—Automatic end-finding and material-interconnecting arrangements acting after interruption of the winding process, e.g. yarn breakage, yarn cut or package replacement end-finding at the take-up package, e.g. by suction and reverse package rotation
    • 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

Definitions

  • the invention relates to a method for operating a job of a cross-wound producing textile machine according to the preamble of claim 1 and a corresponding job.
  • Such a job of a cheese winder for example, in the DE 101 50 590 A1 described.
  • This known job has, inter alia, a suction nozzle, which receive the accumulated after a thread break or a defined cleaner cut on the surface of a cheese upper thread and can insert into a pneumatic yarn splicing device, where the upper thread is connected to a prepared by a looper thread lower thread.
  • the suction nozzle which is displaceable between two end positions, is either, as in the DE 101 50 590 A1 described, acted upon by a tension spring and guided on a cam, pivoted into a thread receiving position in which the mouth of the suction nozzle is positioned in the region of the surface of the cheese held in the bobbin or the suction nozzle, as for example in the EP 0 717 001 B1 is indicated, acted upon by a single motor, pivotable between its end positions.
  • the suction nozzles are usually at a so-called suction nozzle stop, via which the optimal distance between the mouth of the suction nozzle and the surface of the yarn pickup slowly rotating in unwinding cheese is adjustable.
  • the suction nozzle stop depending on the diameter of the cheese, automatically adjusted over a multi-part lever linkage.
  • the present invention seeks to develop a method and an apparatus which / improves the operation of the jobs of cheese-producing textile machines, especially of cheese winder.
  • the jobs of such textile machines should be designed so that problems that may occur in the Fadenendsuche or at the Fadenending, can be reacted quickly and flexibly.
  • the inventive method in which the suction nozzle, starting from a sensory detected position of the suction nozzle, by the execution of a predetermined number of steps of a stepping motor in a yarn end receiving position is positioned so that the mouth of the suction nozzle is arranged at a defined distance from the surface of the cheese, has the particular advantage that the very important for a successful final thread take-up distance can not only be adjusted quickly and completely easily, but that if necessary, this distance, by appropriate control of the stepping motor, at any time easily corrected or optimized again.
  • the positioning of the suction nozzle in the yarn end receiving position can also be realized by a motor which is equipped with a flywheel.
  • the sensory detectable position of the suction nozzle is removed at least as far from the respective yarn end receiving position arranged that, based on the pivot angle of the suction nozzle in the direction of the yarn end receiving position, always before the yarn end receiving position.
  • the stepping motor which pivots the suction nozzle into the yarn end receiving position, can always be operated with the current position data of the suction nozzle before swiveling the suction nozzle into the yarn end receiving position. That is, any malpositions of the suction nozzle, for example, due to a temporary blockage of the suction nozzle, are recognized and taken into account at the latest at this time. In particular, the risk that the mouth of the suction nozzle unintentionally starts against the surface of the cheese is thus largely eliminated.
  • the number of steps of the stepping motor is adjusted in the course of a coil travel so that it corresponds to the associated change in position of the coil surface. This means that, depending on the particular diameter of the cross-wound bobbin, the suction nozzle successively assumes different yarn end receiving positions. The pivoting of the suction nozzle in each of these optimal Fadenendage sueden takes place automatically, that is, there are no manual intervention by the operating personnel required.
  • this sensory position in order to minimize possible errors, is close to the yarn end receiving position, preferably not more than 100 steps before the yarn end receiving position.
  • the setting of the yarn end receiving positions for the plurality of suction nozzles of the textile machine takes place centrally on a textile machine's own control unit.
  • the distance between the mouth of the suction nozzle and the surface of the cheese is the same at least at the start of a lot at all jobs.
  • the distance of the mouth of the suction nozzle to the surface of the cheese during a Fadenendsuch- and -effortzyklus' of the suction nozzle is variable. That is, the Fadenendam ein the suction nozzle can be corrected immediately when it comes within a Fadenendsuch- and - pickup 'to one or more failed attempts (s) at the Fadenendam, which is detected for example by a sensor disposed within the suction nozzle.
  • the suction nozzle When the suction nozzle, as described in claim 7, performs pitching movements during a yarn end search and pick-up cycle in the case of a miss attempt, the distance of the mouth of the suction nozzle to the surface of the cheese advantageously changed between two pitching movements. That is, before the second or third pitching movement of the suction nozzle, its yarn end receiving position, when the sensor in the suction nozzle does not initiate a signal indicative of a successful yarn end picking attempt, is somewhat corrected.
  • the suction nozzle always first performs a complete Fadenendsuch- and - recording cycle, the success, as indicated above, is monitored by a corresponding sensor device.
  • a self-optimization of the distance of the mouth of the suction nozzle to the surface of the cross-wound bobbin takes place.
  • the yarn end receiving position of the suction nozzle is corrected so long, for example, depending on the successes or failures of the yarn end receiving tests until the number of failed attempts at the Fadenending is minimized.
  • the determined values for the distance can be used as a guideline for the start in later yarn lots, whereby these values are then, in turn, optimized as far as is still possible.
  • the suction nozzle can be moved slowly to the surface of the cheese and slowly placed on the surface for releasing a thread end, which was infiltrated by the bobbin drive drum in the surface of the cheese, (claim 10). Since the cross-wound bobbin is also rotated in the unwinding direction at this time, the thread end runs against the mouth of the suction nozzle and is thereby released from the surface of the cross-wound bobbin. The loosened thread end is then detected by the suction nozzle, which in the meantime is again positioned in a predetermined yarn end receiving position, and, as usual, conveyed to the yarn splicing device.
  • the suction nozzle as described in claim 11, are moved slowly to the surface of the sleeve for determining the inserted into the winding device sleeve format.
  • the number of steps of the stepping motor to stop the suction nozzle is detected by contact with the surface of the sleeve and processed, for example, in the textile machine's own control unit for calculating the sleeve format.
  • the suction nozzle for determining the inserted into the winding device sleeve format is slowly moved up to the surface of the sleeve as the starting position for determining the Fadenendamgnayak that the suction nozzle after contact with the Sleeve pivoted back into the yarn end receiving position and thereby out of the
  • the jobs where the inventive method is used, as set forth in claim 13, each have a winding device for winding a package and a suction nozzle for receiving a accumulated on the surface of the cross-wound yarn end.
  • the suction nozzle has a drive designed as a stepper motor, which is connected to a spool point own control device and controllable so that the suction nozzle is positionable in predeterminable Fadenendage sueden in which the mouth of the suction nozzle has a defined distance to the surface of the cheese.
  • Such stepper motors allow a relatively simple way an accurate and reproducible positioning of the suction nozzle. That is, the suction nozzle can be quickly and easily positioned in predeterminable Fadenendage sueden, the necessary control effort is relatively low.
  • FIGS. 1 and 2 is in each case schematically, in side view, a job 2 of a generally designated by the reference numeral 1 cheesemaking textile machine shown.
  • textile machines of this type which are designed, for example, as spooling machines, have a multiplicity of these identical workstations, in this case winding stations 2, between their end frames (not shown).
  • the spin cords 3, which are produced for example on a ring spinning machine and have relatively few yarn material, are rewound into large-volume cheeses 5 on these winding stations 2.
  • Such automatic packages 1 usually have a logistics device in the form of a bobbin and tube transport system 6, in which 11 spinning cops 3 or empty tubes rotate on transport plates.
  • a logistics device in the form of a bobbin and tube transport system 6, in which 11 spinning cops 3 or empty tubes rotate on transport plates.
  • the delivered spinning cops 3 in one of the Abspul einen AS which are each located in the region of the transverse transport lines 19 at the winding units 2, rewound to large-volume cheeses 5.
  • the individual winding units have, as is known and therefore only indicated, various devices which ensure the proper operation of such winding units 2.
  • These devices are each connected to a workstation own control device 31, wherein the control device 31 in turn is connected via a machine bus 33 to a central control unit 32 of the textile machine 1.
  • workstations 2 include, inter alia, a pivotally mounted suction nozzle 24 and a pivotally mounted gripper tube 25.
  • the suction nozzle 24 is rotatably mounted limited to a pivot axis 23 and has a stepper motor designed as a drive 15 which is connected via a control line 36 to the workstation's own control device 31.
  • the suction nozzle 24 also has a sensor device 41, by which it is possible to check whether a thread take-up test of the suction nozzle 24 was successful.
  • a sensor 40 is installed in the region of the suction nozzle 24, by means of which the pivoting angle of the suction nozzle 24 can be controlled during its pivoting into the yarn end receiving position.
  • Such work stations 2 generally also have a yarn splicing device 26, a thread tensioning device 30, a thread cleaner 28, a yarn tension force sensor 29 and a lower thread sensor 22.
  • the winding device which is generally designated by the reference numeral 4, has a coil frame 8 which is movably mounted about a pivot axis 12.
  • the freely rotatably supported in the coil frame 8 cross-wound bobbin 5 during the winding process with its surface 35 on a bobbin drive roller 9 and is driven by this via frictional engagement.
  • the running of the spinning cop 3 to the cheese 5 thread 16 is also traversed by a Fadenchangier driving 10, which has, for example, a finger-trained, acted upon by an electromechanical drive 14 yarn guide 13, between the two end faces of the cheese 5 during the winding process.
  • Such traversing devices are known and, for example, in the DE 198 58 548.9 described in detail.
  • a cross-coil transport device 7 is also arranged, can be transported through the finished cheeses.
  • the suction nozzle 24 by means of the stepping motor 15 from the in FIG. 1 shown starting position are pivoted into a yarn end receiving position in which the mouth 34 of the suction nozzle 24 is positioned at a defined distance a to the surface 35 of the cheese 5.
  • the distance a between the mouth 34 of the suction nozzle 24 and the surface 35 of the cheese 5 can be exactly adjusted by appropriate driving the stepper motor 15 and at any time, for example, depending on the results that are achieved in the Fadenendage be corrected.
  • a successful Fadenending that is, the presence of the upper thread in the suction nozzle 24 is detected by a sensor device 41 which is disposed within the suction nozzle 24 and connected via a corresponding signal line to the workstation's own control device 31.
  • the workstation computer 31 upon receipt of a corresponding signal from the sensor device 41, ensures that the stepping motor 15 pivots the suction nozzle 24 down again and inserts the picked-up upper thread into the yarn splicing device 26. If no corresponding signal of the sensor device 41 is received, the suction nozzle 24 could thus not receive the upper thread from the surface 35 of the cross-wound bobbin 5, the suction nozzle 24 is positioned in a modified Fadenendamgna.
  • the distance a between the mouth 34 of the suction nozzle 24 and the surface 35 of the cheese 5 is changed, usually reduced in practice.
  • the Fadenendability of the upper thread through the suction nozzle 24 also takes the Fadenendability and Fadenendüber Installation the lower thread.
  • the gripper tube 25, which is preferably also driven by a single motor, receives the lower thread connected to the spinning cop 3, pivots upwards and places the lower thread in the thread splicing device 26.
  • the yarn ends of upper and lower thread are first prepared in a known manner and then, as usual, pneumatically spliced to form a new thread 16.
  • the winding process can be resumed at the winding unit in question.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Looms (AREA)

Claims (14)

  1. Procédé d'exploitation d'un poste de travail (2) d'une machine textile (1) produisant des bobines croisées, qui est équipé d'un dispositif de bobinage (4) pour embobiner une bobine réceptrice (5), et d'une buse aspirante (24), pouvant être entraînée par un moteur indépendant et destinée à recevoir une extrémité de fil arrivée sur la surface (35) de la bobine croisée (5),
    caractérisé en ce que la buse aspirante (24) est, en partant d'une position de la buse aspirante (24) détectée par capteur, par l'exécution d'un nombre prédéterminé de pas d'un moteur pas à pas (15), positionnée dans une position de réception d'extrémité de fil dans laquelle l'embouchure (34) de la buse aspirante (24) présente une distance définie (a) par rapport à la surface (35) de la bobine croisée (5), sachant que la position détectée par capteur est disposée en étant suffisamment éloignée de la position respective de réception d'extrémité de fil pour qu'elle se trouve, relativement à l'angle de pivotement en direction de la position de réception d'extrémité de fil, toujours avant la position de réception d'extrémité de fil.
  2. Procédé selon la revendication 1, caractérisé en ce que le nombre de pas du moteur pas à pas (15) au cours d'un cheminement de la bobine est ajusté de telle sorte qu'il correspond à la modification connexe de la position de la surface (35) de la bobine.
  3. Procédé selon la revendication 1, caractérisé en ce qu'il est prévu un moteur à roue polaire dont le mouvement de rotation au cours d'un cheminement de la bobine est ajusté de telle sorte qu'il correspond à la modification connexe de la position de la surface (35) de la bobine.
  4. Procédé selon la revendication 1, caractérisé en ce que la position détectée par capteur, afin de minimiser d'éventuelles erreurs, se situe à proximité de la position de réception d'extrémité de fil, de préférence à au plus 100 pas de la position de réception d'extrémité de fil.
  5. Procédé selon la revendication 1, caractérisé en ce que le nombre de pas pour le positionnement de la pluralité de buses aspirantes (24) de la machine textile (1) dans leurs positions de réception d'extrémité de fil est saisi centralement sur une unité de commande (32) propre à la machine textile.
  6. Procédé selon la revendication 1, caractérisé en ce que la distance (a) entre l'embouchure (34) de la buse aspirante (24) et la surface (35) de la bobine croisée (5) est modifiée pendant un cycle de recherche et de réception d'extrémité de fil de la buse aspirante (24).
  7. Procédé selon la revendication 6, caractérisé en ce que la buse aspirante (24) effectue des mouvements de tangage pendant un cycle de recherche et de réception d'extrémité de fil, sachant qu'on réagit, à une recherche sans succès de la réception de l'extrémité de fil qui est détectée par un capteur (40), par une modification de la distance (a) avant le mouvement de tangage suivant de la buse aspirante (24).
  8. Procédé selon la revendication 1, caractérisé en ce que, à l'achèvement d'un cycle sans succès de recherche et de réception d'extrémité de fil de la buse aspirante (24) qui est détecté par un capteur (40), on lance un nouveau cycle de recherche et de réception d'extrémité de fil de la buse aspirante (24) avec une distance (a) modifiée.
  9. Procédé selon la revendication 8, caractérisé en ce qu'une auto-optimisation de la position de réception d'extrémité de fil de la buse aspirante (24) est effectuée en fonction du succès de plusieurs recherches de la réception de l'extrémité de fil.
  10. Procédé selon la revendication 1, caractérisé en ce que, afin de libérer des extrémités de fil qui sont enfoncées dans la surface (35) de la bobine croisée (5), la buse aspirante (24) est d'abord approchée lentement jusqu'à la surface (35) de la bobine croisée (5) puis positionnée dans une position prédéfinie de réception d'extrémité de fil.
  11. Procédé selon la revendication 1, caractérisé en ce que, afin de déterminer le format de tube mis en place dans le dispositif de bobinage (4), comme position de départ pour la détermination de la position de réception d'extrémité de fil, la buse aspirante (24) est approchée lentement de la surface du tube,
    et en ce que le format de tube est calculé à partir du nombre de pas du moteur pas à pas (15) jusqu'à l'arrêt de la buse aspirante (24) par contact avec le tube.
  12. Procédé selon la revendication 1, caractérisé en ce que, afin de déterminer le format de tube mis en place dans le dispositif de bobinage (4), comme position de départ pour la détermination de la position de réception d'extrémité de fil, la buse aspirante (24) est approchée lentement de la surface du tube,
    et en ce que la buse aspirante (24) est ramenée par pivotement à la suite du contact avec le tube dans la position de réception d'extrémité de fil, et le format de tube est alors calculé à partir du nombre de pas.
  13. Poste de travail (2) d'une machine textile (1) produisant des bobines croisées, avec un dispositif de bobinage (4) pour embobiner une bobine réceptrice (5), et avec une buse aspirante (24), pouvant être entraînée par un moteur indépendant et destinée à recevoir une extrémité de fil arrivée sur la surface (35) de la bobine croisée (5),
    caractérisé en ce que la buse aspirante (24) présente respectivement un entraînement (15) réalisé sous forme de moteur pas à pas, qui est raccordé par l'intermédiaire d'une ligne de commande (36) à un équipement de commande (31) propre au poste de bobinage et qui peut être asservi de telle sorte que la buse aspirante (24) peut être positionnée dans une position de réception d'extrémité de fil dans laquelle l'embouchure (34) de la buse aspirante (24) présente respectivement une distance définie (a) par rapport à la surface (35) de la bobine croisée (5), et sachant que la position angulaire correcte de la buse aspirante (24) est contrôlée au moyen d'un équipement de détection (40) qui est positionné avant la position de réception d'extrémité de fil en direction de cette position.
  14. Poste de travail selon la revendication 13, caractérisé en ce que la machine textile (1) présente une unité de commande (32) à laquelle sont raccordés les équipements de commande (31) propres aux postes de bobinage, et en ce que la distance (a) entre les embouchures (34) des buses aspirantes (24) et les surfaces (35) des bobines croisées (5) peut être réglée centralement sur l'unité de commande (32).
EP07725394.6A 2006-06-08 2007-05-21 Procédé de fonctionnement du poste de travail d'une machine textile produisant des bobines croisées Active EP2029465B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006026548A DE102006026548A1 (de) 2006-06-08 2006-06-08 Verfahren zum Betreiben einer Arbeitstelle einer Kreutzspulen herstellenden Textilmaschine
PCT/EP2007/004487 WO2007140871A1 (fr) 2006-06-08 2007-05-21 Procédé de fonctionnement du poste de travail d'une machine textile produisant des bobines croisées

Publications (2)

Publication Number Publication Date
EP2029465A1 EP2029465A1 (fr) 2009-03-04
EP2029465B1 true EP2029465B1 (fr) 2016-05-04

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EP (1) EP2029465B1 (fr)
CN (1) CN101454231B (fr)
DE (1) DE102006026548A1 (fr)
WO (1) WO2007140871A1 (fr)

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DE102012005988A1 (de) 2012-03-23 2013-09-26 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
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JP2014108845A (ja) * 2012-11-30 2014-06-12 Murata Mach Ltd 糸巻取機
DE102013004053A1 (de) 2013-03-08 2014-09-11 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine bzw. zugehörige Arbeitsstelle
DE102014012730A1 (de) * 2014-08-26 2016-03-03 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine bzw. zugehörige Arbeitsstelle
DE102015013569A1 (de) 2015-10-20 2017-04-20 Saurer Germany Gmbh & Co. Kg Verfahren zum Kalibrieren eines Oberfadenerfassungsvorganges von Arbeitsstellen einer Kreuzspulen herstellenden Textilmaschine
DE102015014429A1 (de) * 2015-11-10 2017-05-11 Saurer Germany Gmbh & Co. Kg Verfahren zum Betreiben einer Kreuzspulen herstellenden Textilmaschine
DE102016111841A1 (de) * 2016-06-28 2017-12-28 Rieter Ingolstadt Gmbh Verfahren zum Betreiben einer Arbeitsstelle einer Textilmaschine
DE102016115731A1 (de) * 2016-08-24 2018-03-01 Saurer Germany Gmbh & Co. Kg Saugvorrichtung zum Einsaugen eines Fadenendes eines auf einer Auflaufspule aufgespulten Fadens und Verfahren zum sensorischen Überwachen eines Saugkanalabschnitts der Saugvorrichtung
JP2019043737A (ja) * 2017-09-04 2019-03-22 村田機械株式会社 糸巻取機
CN108423496B (zh) * 2018-05-15 2023-08-29 江阴市凯业纺织机械制造有限公司 一种自动络筒机自动找头设备用吸头拽头装置
DE102018112802A1 (de) * 2018-05-29 2019-12-05 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Textilmaschine sowie Textilmaschine
DE102020102793A1 (de) 2020-02-04 2021-08-05 Maschinenfabrik Rieter Ag Verfahren zum Betreiben einer Arbeitsstelle einer Garnspulen herstellenden Textilmaschine
IT202000019312A1 (it) * 2020-08-05 2022-02-05 Savio Macch Tessili Spa Roccatrice automatica munita di un gruppo compensatore elettronico per la regolazione della distanza tra una bocchetta di aspirazione lato rocca e la rocca medesima, e relativo metodo di regolazione

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CN101454231A (zh) 2009-06-10
EP2029465A1 (fr) 2009-03-04
CN101454231B (zh) 2013-03-20
DE102006026548A1 (de) 2007-12-13

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