EP1928774B1 - Procede de fonctionnement d'un poste de travail dote d'une machine textile fabricant des bobines croisees - Google Patents

Procede de fonctionnement d'un poste de travail dote d'une machine textile fabricant des bobines croisees Download PDF

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Publication number
EP1928774B1
EP1928774B1 EP06791900A EP06791900A EP1928774B1 EP 1928774 B1 EP1928774 B1 EP 1928774B1 EP 06791900 A EP06791900 A EP 06791900A EP 06791900 A EP06791900 A EP 06791900A EP 1928774 B1 EP1928774 B1 EP 1928774B1
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EP
European Patent Office
Prior art keywords
thread
tensile force
yarn
workstation
workstation computer
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
EP06791900A
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German (de)
English (en)
Other versions
EP1928774A1 (fr
Inventor
Michael Iding
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.)
Oerlikon Textile GmbH and Co KG
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Oerlikon Textile GmbH and Co KG
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Publication of EP1928774A1 publication Critical patent/EP1928774A1/fr
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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
    • B65H59/10—Adjusting or controlling tension in filamentary material, e.g. for preventing snarling; Applications of tension indicators by devices acting on running material and not associated with supply or take-up devices
    • B65H59/20—Co-operating surfaces mounted for relative movement
    • B65H59/22—Co-operating surfaces mounted for relative movement and arranged to apply pressure to material
    • B65H59/24—Surfaces movable automatically to compensate for variation in tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/04—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to excessive tension or irregular operation of apparatus
    • 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 workstation of a cross-wound textile machine according to the preamble of claim 1.
  • Textile machines producing cross-wound bobbins for example automatic packages, have been known for a long time.
  • Such spoolers usually have a plurality of juxtaposed in series, similar jobs, each having different Fadenhandhabungs- or thread monitoring devices.
  • the control and monitoring of these thread handling or thread monitoring devices takes place in each case via a workstation computer, wherein the individual workstation computers, usually via a machine bus, are also connected to a central control unit of the cheese winder.
  • Such textile machines can also have workstation-specific spinning cop magazines.
  • Such work-own Spinnkopsmagazine are then preferably designed as a so-called round magazines, which are manually populated by the operator.
  • Such automatic packages can have a service unit which automatically supplies the workstations.
  • a service unit such as a so-called cheese changer, takes the finished cheeses from the creel of jobs, transferred them to a machine-length transport device, which conveys the cheeses to a machine end side transfer station, and changes a new empty tube in the creel of the relevant work.
  • the thread is scanned for thread defects, whereby detected errors are eliminated.
  • the running thread is also monitored during rewinding by a yarn tension sensor and held the yarn tension by means of a thread tensioner at a predetermined level. That is, by means of the thread tensioner, a substantially constant yarn tension of the running yarn is set to ensure in this way a uniform winding of the yarn on the cross-wound bobbin.
  • Fadenzugkraftsensoren which detect the current yarn tension of a running yarn are, for example, by the DE 41 29 803 A1 known.
  • the yarn tensile force sensor performs a yarn tension measurement on the running yarn and provides a control signal for a yarn tensioner which, in accordance with the control signal, exerts a more or less large braking effect on the running yarn.
  • Such thread tensioners for example, in the DE 41 30 301 A1 are described for this purpose have a loadable with a variable pressure force yarn braking device. Through the interaction of the yarn tension sensor with the thread tensioner is largely ensured that the yarn is wound with a defined yarn tension on the package.
  • the yarn tensioner is slightly opened to compensate for the increase in yarn tension.
  • the thread tensioner is slightly closed when the yarn tension sensor signals a drop in the yarn tension.
  • Another, critical operating condition is given, for example, when the thread in the region of the thread tensioner does not run between the brake plates, that is, when the thread is passed beside, in front of or behind the brake plates. Since the rewinding is not directly affected by this, this misalignment of the thread is not always immediately recognizable. Due to the lack of regulation of the thread tension, however, a faulty, generally too soft wound package can occur.
  • the workstation calculates according to a yarn tension determined by the yarn tension force the contact pressure of the thread tensioner, this predetermined contact pressure with a predetermined limit value for the contact pressure compares, and if the limit is reached or exceeded for a predetermined period of time interrupts the winding process.
  • a method is known with which it is to be prevented that can form a filament winding at a workstation of a cross-wound textile machine during Umspulvorganges after a yarn break by further unwinding of the yarn from the supply spool in the traversing roller.
  • the thread tension of the running thread is monitored by a thread tension sensor and responds to abnormal thread tension curves, such as occur in the formation of a thread winding, by a thread cut.
  • the invention has the object to develop a method by which a high winding quality of cheeses, especially of dye packages, can be reliably ensured.
  • the workstation computer initiates a controlled thread trimming when the yarn tension has reached or exceeded the tolerance limits for the predetermined period of time.
  • a thread cut the winding process is interrupted immediately and thus easily prevented that a cheese is produced, the thread layers are partially wound too hard or too soft.
  • the period of time in which an unauthorized overshoot or undershoot of the permitted percentage deviation from the desired yarn tension can occur before the winding process is interrupted and an alarm is triggered is adjustable on the workstation computer. That is, the operator can, for example, depending on the yarn material or the subsequent use of the cheese, individually set how fast the workstation computer should respond to detected, outside predetermined tolerance limits deviations of the thread tension.
  • the adjustable reaction time of the system is between 0.1 second and 5 seconds. In practical experiments, a reaction time of about 1 second has been found to be particularly advantageous.
  • FIG. 1 shows a side view of a workstation 10 of a cheese-producing textile machine.
  • Such textile machines known as automatic packages have a multiplicity of workstations 10 arranged next to one another, on which supply bobbins 12, preferably spinning cops, are wound into large-volume cheeses 14.
  • the spinning cops 12 arrive via a transport device 16 to the individual workstations 10, which, as known per se, includes a plurality of unspecified transport routes on which, plugged on transport plates 20, spin cops 12 and empty tubes 18 are conveyed.
  • a thread 22 is withdrawn, the first on its way to the cheese 14, a lower thread sensor 28, the via a signal line 30 is connected to a workstation computer 32 happens.
  • this lower thread sensor 28 for example, after a yarn breakage or a controlled thread cut, before initiating the upper thread search, it is determined whether a lower thread 34 is present at all.
  • a thread tensioner 36 is arranged, which, as in FIG. 2 indicated, two brake plates 5, 6, which exert on the current thread 22 a contact pressure.
  • the thread tensioner 36 is also connected via a control line 38 to the workstation computer 32.
  • a thread cleaner 44 is arranged to detect yarn defects.
  • the quality of the running thread is constantly monitored, wherein the signals of the thread cleaner 44 are supplied to the workstation computer 32 for evaluation via a signal line 48.
  • a thread cutting device 52 is actuated by the workstation computer 32 via a control line 50 and the thread 22 is separated.
  • the yarn tensile force sensor 54 is also connected via a signal line 56 to the workstation computer 32.
  • the yarn tension force of the running yarn 22 is constantly monitored by means of the yarn tension sensor 54 and controlled according to the yarn tension force signal supplied by the yarn tension sensor 54 via the workstation computer 32 of the yarn tensioner 36. That is, the brakes 4, 5 of the thread tensioner 36 act on the thread 22 with a contact pressure, which ensures that the current thread 22 sets a substantially constant yarn tension, the one ensures uniform packing density of the supplying cross-wound bobbin 14.
  • the cross-wound bobbin 14 is rotatably supported by a sleeve, not shown in a pivotally mounted creel 6 and lies with its outer periphery on the motor driven individually driven yarn guide drum 60, which carries the cross-wound bobbin 14 via frictional engagement.
  • a yarn splicing device 40 is also arranged, which is also connected via a signal line 42 to the workstation computer 32.
  • the workstation 10 also has a suction nozzle 7 and a gripper tube 8.
  • the gripper tube 8 serves to grasp the originating from the spinning cop 12 lower thread, which is held in a controlled thread cleaning cut or a thread break above the thread tensioner usually in the thread tensioner 36.
  • the suction nozzle 7 serves to receive an accumulated on the cheese 14 upper thread.
  • FIG. 2 schematically the workstation computer 32 and its interconnection with the thread tensioner 36, the yarn tension sensor 54, the thread cutting device 52 and the alarm device 11 is shown.
  • a yarn tension sensor 54 is preferably a device for use, as for example by the DE 41 29 803 A1 is also known.
  • An electrically controllable thread cutting device, as indicated by the reference numeral 52, has also long been the state of the art in textile machinery. Such devices usually have a selectively extendable by an electromagnet cutting edge, which is pressed when energized an electromagnet against a stop and thereby reliably cuts the thread passing in front of the cutting thread.
  • the workstation computer 32 which in the exemplary embodiment has a yarn tension setpoint generator 13, a yarn tension limit value transmitter 15, a comparator 19, a controller 17, as well as a timer 21, which is integrated in the comparator 19, is provided with a signal line 56 the yarn tension force sensor 54, via a control line 38 with the thread tensioner 36, via a control lines 50 with the thread cutting device 52 and a signal line 31 to the alarm device 11 connected.
  • the comparator 19 via the signal line 24 from the yarn tension setpoint generator 13 with the yarn tension setpoint FZK should be supplied via the signal line 27 from the limit value sensor 15 with the corresponding limit values TG.
  • About the limit value transmitter 15 is also preferably the time ZS tolerance deviation adjustable, which should pass before the comparator 19 triggered the thread cutting device 52 and the alarm device 11 via the controller 17.
  • the thread cutting device 52 is activated via the setting line 50 and the running yarn 22 is disconnected.
  • the alarm device 11 is actuated via the signal line 31 and the relevant workstation 10 is shut down.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Filamentary Materials, Packages, And Safety Devices Therefor (AREA)
  • Winding Filamentary Materials (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé de fonctionnement d'un poste de travail doté d'une machine textile fabricant des bobines croisées, au moyen d'une commande de bobines à vitesse réglable pour régler la vitesse de bobinage des bobines croisées, d'un capteur de force de traction de fil relié à un ordinateur du poste de travail pour surveiller la force de traction d'un fil se déroulant d'une bobine d'alimentation, ainsi que d'un tendeur de fil pour réguler la force de traction du fil. Selon l'invention, il est possible de régler sur l'ordinateur du poste de travail (32) une valeur de force de traction de fil souhaitée (FZKSoll) et une valeur (TG) de pourcentage d'écart permis par rapport à cette valeur de force de traction de fil souhaitée (FZKSoll). En outre, l'ordinateur du poste de travail (32) interrompt immédiatement le processus de bobinage et déclenche une alarme lorsque le pourcentage d'écart permis de la force de traction de fil (FZKSoll) est dépassé.

Claims (3)

  1. Procédé d'actionnement d'un poste de travail d'une machine textile produisant des bobines colorées bobinées avec une force de traction très modeste appliquée au fil, comprenant un entraînement à vitesse angulaire réglable, conçu pour régler la vitesse de la bobine croisée ; un capteur de force de traction de fil, raccordé à un calculateur affecté au poste de travail afin de surveiller la force de traction appliquée au fil pendant l'intégralité du processus de bobinage d'un fil défilant en provenance d'une bobine d'alimentation ; ainsi qu'un tendeur de fil pour réguler ladite force de traction appliquée au fil,
    caractérisé par le fait
    que le calculateur (32) affecté au poste de travail permet de régler une valeur assignée à une force de traction souhaitée (FZKSoll) appliquée au fil, une valeur (TG) assignée à un écart autorisé exprimé en pourcentage, vis-à-vis de ladite force de traction souhaitée (FZKSoll) appliquée au fil, ainsi que le laps de temps (ZS) durant lequel peut survenir un dépassement non autorisé dudit écart autorisé exprimé en pourcentage, vis-à-vis de ladite force de traction souhaitée (FZKSoll) appliquée au fil avant que le processus de bobinage soit interrompu ; et
    que, lorsque la valeur dudit écart autorisé exprimé en pourcentage, vis-à-vis de ladite force de traction souhaitée (FZKSoll) appliquée au fil, est atteinte ou excédée pour le laps de temps préétabli (ZS), ledit calculateur (32) affecté au poste de travail amorce un sectionnement de fil contrôlé se traduisant par une interruption immédiate dudit processus de bobinage.
  2. Procédé selon la revendication 1, caractérisé par le fait que le laps de temps (ZS) pouvant être préétabli est compris entre 0,1 s et 5 s, et est d'environ 1 s de préférence.
  3. Procédé selon la revendication 1, caractérisé par le fait qu'une alarme est déclenchée, par le calculateur (32) affecté au poste de travail, lorsque la valeur du dépassement autorisé de la force de traction (FZKZoll) appliquée au fil est atteinte ou excédée pour le laps de temps préétabli (ZS).
EP06791900A 2005-09-24 2006-09-07 Procede de fonctionnement d'un poste de travail dote d'une machine textile fabricant des bobines croisees Active EP1928774B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE200510045789 DE102005045789A1 (de) 2005-09-24 2005-09-24 Verfahren zum Betreiben einer Arbeitsstelle einer Kreuzspulen herstellenden Textilmaschine
PCT/EP2006/008722 WO2007033771A1 (fr) 2005-09-24 2006-09-07 Procede de fonctionnement d'un poste de travail dote d'une machine textile fabricant des bobines croisees

Publications (2)

Publication Number Publication Date
EP1928774A1 EP1928774A1 (fr) 2008-06-11
EP1928774B1 true EP1928774B1 (fr) 2010-01-06

Family

ID=37199137

Family Applications (1)

Application Number Title Priority Date Filing Date
EP06791900A Active EP1928774B1 (fr) 2005-09-24 2006-09-07 Procede de fonctionnement d'un poste de travail dote d'une machine textile fabricant des bobines croisees

Country Status (5)

Country Link
EP (1) EP1928774B1 (fr)
JP (1) JP5124465B2 (fr)
CN (1) CN101268001B (fr)
DE (2) DE102005045789A1 (fr)
WO (1) WO2007033771A1 (fr)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007018657A1 (de) * 2007-04-20 2008-10-23 Oerlikon Textile Gmbh & Co. Kg Fachspulmaschine
JP2010269915A (ja) * 2009-05-22 2010-12-02 Murata Machinery Ltd 糸巻取装置及びパッケージの回転不良検出のためのアラーム閾値決定方法
DE102010021152A1 (de) * 2010-05-21 2011-11-24 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Herstellen von Spinnkopsen
DE102012004910A1 (de) * 2012-03-09 2013-09-12 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Optimieren der Spulgeschwindigkeit einer Arbeitsstelle eines Spulautomaten
DE102012007467A1 (de) * 2012-04-13 2013-10-17 Oerlikon Textile Gmbh & Co. Kg Verfahren zum Herstellen einer Kreuzspule
DE102013009452A1 (de) 2013-06-06 2014-12-11 Saurer Germany Gmbh & Co. Kg Nullpunktabgleich eines Fadenzugkraftsensors
DE102015008166A1 (de) * 2015-06-25 2016-12-29 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zum Optimieren der Dichte von auf Arbeitsstellen eines Kreuzspulautomaten hergestellten Kreuzspulen
BE1023564B1 (nl) * 2015-11-03 2017-05-05 VAN DE WIELE Michel NV Garenspanningssysteem en werkwijze voor het onder spanning houden van een garen dat van een garenopslagsysteem afgenomen wordt naar een garenafneemsysteem van een weefmachine toe
DE102018007591A1 (de) * 2018-09-26 2020-03-26 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren und Vorrichtung zum Detektieren einer Fadenschlinge bei einer Arbeitsstelle einer Auflaufspulen herstellenden Textilmaschine
DE102020130887A1 (de) * 2020-11-23 2022-05-25 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zur Ermittlung des Gewichts einer Kreuzspule

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Also Published As

Publication number Publication date
JP2009508783A (ja) 2009-03-05
CN101268001A (zh) 2008-09-17
EP1928774A1 (fr) 2008-06-11
DE102005045789A1 (de) 2007-03-29
CN101268001B (zh) 2011-10-26
JP5124465B2 (ja) 2013-01-23
WO2007033771A1 (fr) 2007-03-29
DE502006005879D1 (de) 2010-02-25

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