EP2738124B1 - Procédé de commande de l'accélération d'un tambour de commande de bobines - Google Patents

Procédé de commande de l'accélération d'un tambour de commande de bobines Download PDF

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Publication number
EP2738124B1
EP2738124B1 EP13005337.4A EP13005337A EP2738124B1 EP 2738124 B1 EP2738124 B1 EP 2738124B1 EP 13005337 A EP13005337 A EP 13005337A EP 2738124 B1 EP2738124 B1 EP 2738124B1
Authority
EP
European Patent Office
Prior art keywords
bobbin
acceleration
drive roller
take
value
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
EP13005337.4A
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German (de)
English (en)
Other versions
EP2738124A2 (fr
EP2738124A3 (fr
Inventor
Torsten Forche
Manfred Mund
Bernd-Rüdiger Theele
Hans-Günter Wedershoven
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 EP2738124A2 publication Critical patent/EP2738124A2/fr
Publication of EP2738124A3 publication Critical patent/EP2738124A3/fr
Application granted granted Critical
Publication of EP2738124B1 publication Critical patent/EP2738124B1/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
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/70—Other constructional features of yarn-winding machines
    • B65H54/74—Driving arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H54/00—Winding, coiling, or depositing filamentary material
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/40—Arrangements for rotating packages
    • B65H54/42—Arrangements for rotating packages in which the package, core, or former is rotated by frictional contact of its periphery with a driving surface
    • 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 controlling the acceleration of a bobbin drive roller at a workstation of a cheese-producing textile machine, in which the bobbin drive roller drives a package spool frictionally and wherein the spooling progress is monitored during the spool travel.
  • Cheese-making textile machines have long been known; They usually consist of a large number of similar workstations arranged next to each other in series. On the jobs, for example, an automatic winder spinning cops that have relatively little thread material, rewound to large-volume cheeses, which are needed in downstream in the production process textile machines, such as looms.
  • such winding units are also present in other textile machines, for example in rotor spinning machines, friction spinning machines or air spinning machines in connection with spinning stations, in order to allow the winding of cheeses.
  • Thread supplier is then instead of a spinning cop or a supply spool the appropriate spinning station.
  • the cheese referred to in this context as a package
  • a job is driven at the periphery by a coil drive roller.
  • the bobbin drive roller may be formed, for example, as a yarn guide drum and leads the yarn during the winding process before emergence on the cross-wound bobbin back and forth.
  • the thread is changed by means of a separate thread guide in front of the cross-wound bobbin, wherein the bobbin drive roller is then not provided with Faden arrangementsnuten.
  • the yarn quality of the supply bobbin is improved by cleaning out yarn defects, for example from thick and thin areas.
  • the current thread is monitored by a so-called thread cleaner, which initiates a cleaning step and a cleaning of the thread error when discovering a thread error.
  • the first phase of the run-up is referred to as a soft start and includes the acceleration of the bobbin drive roller, for example, up to the yarn speed of 100 m * min -1 .
  • the further acceleration, until reaching the winding speed, is called run-up and is the subject of the present invention.
  • Such a method for controlling the winding speed or the acceleration to the winding speed is the DE 42 30 984 C2 removable.
  • this patent application it is disclosed that several start-up acceleration commands with different characteristics of the startup speeds whose slopes are below a limit value are stored in a central control unit. Before start of winding, the start-up acceleration command is selected with the steepest increase in speed, in which disadvantages such as too high slip or yarn breaks are still avoided.
  • a disadvantage of this known method is that one must be selected by the operator from predetermined characteristics and this characteristic specifies an acceleration that was not determined individually for the respective package.
  • predetermined characteristics can only cover areas to which the packages are then assigned and are therefore not always optimal.
  • manual entry also always entails the risk that errors will be made and a wrong characteristic curve selected.
  • the invention has the object to further optimize the winding process, in particular to improve the acceleration of the package to the winding speed.
  • the bobbin drive roller is sequentially accelerated to predetermined acceleration levels, the angular velocities of both the bobbin drive roller and the package are detected and compared with each other and depending on the result of this comparison, the acceleration to the next acceleration stage is started and that the start the acceleration stages of the bobbin drive roller is controlled during startup in response to the respective winding progress of the package.
  • This type of acceleration of the bobbin drive roller with constantly changing slip is ideal for avoiding winding patterns even during run-up.
  • the comparison of the angular speeds of the package and the bobbin drive roller, which correlate with the peripheral speeds, is the basis for the initiation of the next acceleration stage and ensures that only the next acceleration stage is initiated when either the package falls below an acceleration value or a speed difference to the bobbin drive roller.
  • the start of the next acceleration stage of the bobbin drive roller during a run-up in each case falls below a limit for the circumferential acceleration, ie the product of angular acceleration and diameter of the package.
  • This limit value is reduced with increasing winding progress of the package.
  • acceleration stage in the sense of this invention is to be understood that the bobbin drive roller is accelerated as much as possible in a first phase, optionally up to a predetermined speed and then remains at this speed level until the acceleration phase of the next acceleration stage is initiated. Since the moment of inertia of the package increases with increasing Spulfort Kunststoff, the acceleration during startup to avoid too high slip towards the end of the coil travel must be slower than it is possible at the beginning.
  • the respective winding progress of the package associated limits for the circumferential acceleration of the package either based on the winding progress dependent inertial moments of the package determined or empirically determined at one or more jobs and then for the other jobs.
  • the limit values which initiate the next acceleration stage of the bobbin drive roller can thus be determined by calculation or determined by means of tests during a bobbin travel.
  • I m 2 * r shell 2 + r Kitchen sink 2
  • m represents the mass and r the radius of the sleeve or coil.
  • V ⁇ * h * (r coil 2 - r sleeve 2 ) where h indicates the height.
  • Claim 5 describes that within an acceleration stage in the last third of the run-up, the time is measured until a value representing the synchronization of the peripheral speeds of the package and the bobbin drive roller is reached or an adjustable value below, and that at a predetermined deviation from a target period of Start of the acceleration stages for the following startup operations is changed so that it corresponds to a different winding progress of the package.
  • the so-called ramp-up time value determined in this way is an indicator of how much slippage set in at the end of the run-up and allows conclusions to be drawn about the acceleration that is possible without sacrificing quality.
  • the comparison of the time duration until a value representing the synchronization of the circumferential speeds of the package and the bobbin drive roller is reached, with a set value can be used to correct the calculated or empirically determined limits for the circumferential acceleration of the package for the start of the acceleration stages in Be used within the framework of a control loop. In this case, an intervention takes place only if deviations from the standard determined, in particular by means of coil-specific events (for example, failure or fluctuation of the paraffin application).
  • the time required to reach a value representing the tracking of the peripheral speeds of the bobbin drive roller or a more adjustable value below is determined in the last acceleration stage in which the bobbin drive roller reaches the final winding speed, since at the end the run-up the safest Value can be determined and is expected at the necessary correction of the least loss of production.
  • this acceleration stage there is no intervention in the run-up, for example, by unnecessary extension of an intermediate stage for the acceleration time determination, since this is extended anyway to the final production speed. Furthermore, aborted ramp-ups that would falsify the result are not recorded thereby and thus are not included in the regulation of the acceleration.
  • the target time period is repeatedly measured before an adjustment taking into account the current winding conditions. This procedure ensures that it is not frequently switched back and forth between different settings due to so-called outliers. So only certain deviations are taken into account.
  • FIG. 1 shows that at each workstation from a feed bobbin 1, in particular a spinning cop generated on a ring spinning machine, a yarn 2 is withdrawn, which is wound onto a cheese 3, for example a conical cheese.
  • the cross-wound bobbin 3 which is held by means of a pivotable creel, not shown, rests on a bobbin drive roller 4, in particular on a so-called yarn guide drum, by means of which the cheese 3 rotates and the yarn 2 in the axial direction of the cross-wound bobbin 3 is supplied.
  • Conceivable in the context of the present invention but would also be another type of Fadenchangier observed, for example, a so-called Fingerfaden discussing.
  • the yarn 2 which is usually a yarn formed on a ring spinning machine, passes through a yarn guide 5, a controlled yarn tensioner 6, a yarn tension sensor 9 and a sensor in the form of a cleaner 8.
  • Der Thread tensioner 6 acts on the running thread 2 with a predeterminable clamping force.
  • the cleaner 8 monitors the running thread 2 for errors, especially on thick or thin areas.
  • a paraffin worker 14 and optionally another yarn guide 10 are arranged in the yarn path after the yarn tension sensor 9, a paraffin worker 14 and optionally another yarn guide 10 are arranged.
  • paraffin particles are applied to the yarn, which improve the running and sliding properties of the yarn, which is of considerable importance in particular in subsequent processing processes, for example in knitting and knitting.
  • the thread tensioner 6, the thread tension sensor 9, the cleaner 8 and a splicer 7 for connecting the thread ends before the next run-up are connected to a control and regulation unit 11, a so-called workstation computer.
  • the bobbin drive roller 4 of each work station is driven by its own drive motor 12, which is equipped with a speed control, in particular a Trommelmotorendrun 13.
  • the control of the Trommelmotorendrun 13 is carried out by the workstation computer 11 depending on job-specific parameters such as the thread tension.
  • An unillustrated central computer of the automatic winder is connected, for example via a bus line with the workstation computers 11 of the numerous jobs.
  • the running yarn 2 is interrupted by a cleansing cut and the defective yarn piece is cut out.
  • the package 3 is lifted from the bobbin drive roller 4 and both package 3 as well as the bobbin drive roller 4 are braked to a standstill.
  • the now existing two thread ends are connected to each other by means of a known splicer 7.
  • the package 3 is lowered back to the bobbin drive roller 4 and the bobbin drive roller 4 is accelerated. Up to a yarn speed of, for example, 100 m * min -1 , the so-called soft start takes place, after which the startup according to the invention follows.
  • the bobbin drive roller 4 is accelerated to a predetermined level and remains there.
  • the peripheral speed or the circumferential acceleration that is, the slope of the peripheral speed curve, of the package 3 is detected. If, for example, the circumferential acceleration of the package 3 falls below the limit value adapted to the diameter of the package 3, the next acceleration stage starts. Once the bobbin drive roller 4 has reached the final winding speed, is no longer accelerated and it is detected, the time required for the package 3 to also reach their final winding speed. This ramp-up time is compared with a so-called ramp-up time limit. If, for example, the ramp-up time limit value is 900 ms and the run-up time of the package 3 took 1000 ms, the acceleration for the subsequent run-ups is reduced, that is, the acceleration stages are delayed. The acceleration time value is recorded after every completed startup.
  • FIG. 2 illustrates the change in the limits of acceleration of the package 3, which initiate the next acceleration stage of the bobbin drive roller 4, depending on the package diameter.
  • the acceleration limits of the package 3 are shown on the ordinate.
  • the abscissa scales the package diameter starting with the diameter of the empty shell.
  • the high initial limit can be maintained here, up to about 110 mm in diameter. With increasing diameter of the package 3, the acceleration value decreases.
  • a phase of constant limit values can be set within the scope of the present invention if the acceleration limit values have reached a lower level. This makes it clear that the invention does not require that a (uniform) lowering of the acceleration limit value must take place during the entire coil travel.
  • the limit values for the circumferential acceleration of the package 3 are not only dependent on the inertia, but are influenced by property-related parameters, such as, for example, the paraffinization.
  • the curves of the course of the run-up value for the respective batch are stored in the workstations or central computer, so that they can be used as a basis again in the next same batch.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Winding Filamentary Materials (AREA)

Claims (9)

  1. Procédé de commande de l'accélération d'un tambour (4) d'entraînement de bobines à un poste de travail d'une machine textile produisant des bobines croisées et dans laquelle ledit tambour (4) d'entraînement de bobines entraîne, par frottement, une bobine d'enroulement (3), la progression du bobinage étant surveillée au cours du cheminement de ladite bobine,
    caractérisé par le fait
    que le tambour (4) d'entraînement de bobines est successivement accéléré jusqu'à des niveaux d'accélération pouvant être préétablis, les vitesses angulaires tant dudit tambour (4) d'entraînement de bobines, que de la bobine d'enroulement (3), étant détectées et comparées mutuellement, l'accélération jusqu'au niveau d'accélération successif étant amorcée en fonction du résultat de cette comparaison, et le démarrage des niveaux d'accélération dudit tambour (4) d'entraînement de bobines étant commandé, lors d'une montée en puissance, en fonction de la progression considérée du bobinage de ladite bobine d'enroulement (3).
  2. Procédé selon la revendication 1, caractérisé par le fait que le démarrage du niveau d'accélération successif du tambour (4) d'entraînement de bobines s'opère, au cours d'une montée en puissance, lors d'un dépassement négatif respectif d'une valeur limite attribuée à l'accélération périphérique de la bobine d'enroulement (3) ; et par le fait que cette valeur limite est réduite au fur et à mesure de l'accroissement du bobinage de ladite bobine d'enroulement (3).
  3. Procédé selon la revendication 2, caractérisé par le fait que les valeurs limites attribuées à l'accélération périphérique de la bobine d'enroulement (3), associées à la progression considérée du bobinage de ladite bobine d'enroulement (3), sont déterminées sur la base des moments d'inertie de ladite bobine d'enroulement (3) qui sont tributaires de ladite progression du bobinage.
  4. Procédé selon la revendication 2, caractérisé par le fait que les valeurs limites attribuées à l'accélération périphérique de la bobine d'enroulement (3), associées à la progression considérée du bobinage de ladite bobine d'enroulement (3), sont définies empiriquement à un ou plusieurs poste(s) de travail, puis utilisées comme base pour les autres postes de travail.
  5. Procédé selon l'une des revendications 1 à 4, caractérisé par le fait que le temps est mesuré dans le dernier tiers de la montée en puissance, à l'intérieur d'un niveau d'accélération, jusqu'à ce que soit atteinte une valeur représentative du synchronisme des vitesses périphériques ou une valeur réglable inférieure à cette dernière, par la bobine d'enroulement (3) et par le tambour (4) d'entraînement de bobines ; et par le fait qu'en présence d'un écart pouvant être préétabli, par rapport au laps de temps de consigne, le démarrage des niveaux d'accélération est modifié, pour les processus successifs de montée en puissance, de telle sorte qu'il corresponde à une autre progression du bobinage de ladite bobine d'enroulement (3).
  6. Procédé selon la revendication 5, caractérisé par le fait que le temps, dévolu à l'obtention d'une valeur représentative du synchronisme des vitesses périphériques du tambour (4) d'entraînement de bobines ou d'une valeur réglable inférieure à cette dernière, par la bobine d'enroulement (3), est défini dans le niveau d'accélération auquel ledit tambour (4) d'entraînement de bobines atteint la vitesse de bobinage.
  7. Procédé selon la revendication 5, caractérisé par le fait que, lors d'un dépassement du laps de temps de consigne, le démarrage des niveaux d'accélération est temporisé d'une valeur pouvant être préétablie.
  8. Procédé selon la revendication 5, caractérisé par le fait que, lors d'un dépassement négatif du laps de temps de consigne, le démarrage des niveaux d'accélération est anticipé d'une valeur pouvant être préétablie.
  9. Procédé selon la revendication 7 ou 8, caractérisé par le fait que le temps est mesuré répétitivement, et les niveaux d'accélération sont adaptés avec prise en compte de plusieurs valeurs mesurées.
EP13005337.4A 2012-12-01 2013-11-13 Procédé de commande de l'accélération d'un tambour de commande de bobines Active EP2738124B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012023557.7A DE102012023557A1 (de) 2012-12-01 2012-12-01 Verfahren zum Steuern der Beschleunigung einer Spulenantriebswalze

Related Parent Applications (1)

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DE102012023557 Previously-Filed-Application 2012-12-01

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EP2738124A2 EP2738124A2 (fr) 2014-06-04
EP2738124A3 EP2738124A3 (fr) 2015-02-11
EP2738124B1 true EP2738124B1 (fr) 2016-02-03

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EP (1) EP2738124B1 (fr)
JP (1) JP6242670B2 (fr)
CN (1) CN103848273B (fr)
DE (1) DE102012023557A1 (fr)

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DE102014011817A1 (de) * 2014-08-08 2016-02-11 Saurer Germany Gmbh & Co. Kg Verfahren und Vorrichtung zum Bewickeln einer Auflaufspule
CN108466869B (zh) * 2018-05-02 2024-01-19 浙江科技学院 一种高速精密络筒机的拨叉装置及其运行方法
CN109911700B (zh) * 2019-02-27 2021-06-04 上海电气集团股份有限公司 线束缠绕机驱动装置
CN111112129B (zh) * 2019-12-19 2021-09-07 青岛大学 一种疵纱纱管进入络筒工序前的简易剔除装置及方法
DE102020119846A1 (de) 2020-07-28 2022-02-03 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zur Ermittlung des Massenträgheitsmoments von an Arbeitsstellen einer Textilmaschine hergestellten Kreuzspulen sowie eine Kreuzspulen herstellende Textilmaschine
DE102020132294A1 (de) * 2020-12-04 2022-06-09 Saurer Spinning Solutions Gmbh & Co. Kg Verfahren zur Zustandserfassung einer Spulenbremse sowie Arbeitsstelle einer Textilmaschine
DE102022132650A1 (de) 2022-12-08 2024-06-13 Dietze & Schell Maschinenfabrik Gmbh & Co. Kg Messverfahren für eine Wickelmaschine und Wickelmaschine zur Durchführung eines derartigen Messverfahrens

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JPS59177257A (ja) * 1983-03-24 1984-10-06 Toray Eng Co Ltd 巻取機の速度制御方法
DE3703869C2 (de) * 1987-02-07 1996-12-12 Schlafhorst & Co W Verfahren zum Überwachen und/oder Steuern des Spulvorgangs und Spulstelle zum Ausführen des Verfahrens
JPS63306163A (ja) * 1987-06-08 1988-12-14 Murata Mach Ltd ドラムの駆動制御方法
JP2501978B2 (ja) * 1991-09-17 1996-05-29 村田機械株式会社 自動ワインダの巻取速度制御方法
DE19625511A1 (de) * 1996-06-26 1998-01-02 Schlafhorst & Co W Verfahren und Vorrichtung zum Herstellen von Kreuzspulen in wilder Wicklung
JP3147820B2 (ja) * 1997-06-05 2001-03-19 村田機械株式会社 紡糸巻取機
DE19735581A1 (de) * 1997-08-16 1999-02-18 Schlafhorst & Co W Spultrommelantrieb einer Kreuzspulen herstellenden Textilmaschine
DE19757009A1 (de) * 1997-12-20 1999-06-24 Schlafhorst & Co W Verfahren zur Überwachung des Paraffinauftrags auf einen laufenden Faden
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Also Published As

Publication number Publication date
EP2738124A2 (fr) 2014-06-04
JP6242670B2 (ja) 2017-12-06
CN103848273A (zh) 2014-06-11
CN103848273B (zh) 2017-08-04
JP2014108894A (ja) 2014-06-12
EP2738124A3 (fr) 2015-02-11
DE102012023557A1 (de) 2014-06-05

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