WO2020182980A1 - Procédé de commande d'une pluralité de dispositifs de bobinage ainsi que machine textile - Google Patents

Procédé de commande d'une pluralité de dispositifs de bobinage ainsi que machine textile Download PDF

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Publication number
WO2020182980A1
WO2020182980A1 PCT/EP2020/056805 EP2020056805W WO2020182980A1 WO 2020182980 A1 WO2020182980 A1 WO 2020182980A1 EP 2020056805 W EP2020056805 W EP 2020056805W WO 2020182980 A1 WO2020182980 A1 WO 2020182980A1
Authority
WO
WIPO (PCT)
Prior art keywords
traversing
thread
winding
strokes
electric motor
Prior art date
Application number
PCT/EP2020/056805
Other languages
German (de)
English (en)
Inventor
Dieter Haak
Jürgen STRÖWER
Original Assignee
Oerlikon Textile Gmbh & Co. Kg
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oerlikon Textile Gmbh & Co. Kg filed Critical Oerlikon Textile Gmbh & Co. Kg
Publication of WO2020182980A1 publication Critical patent/WO2020182980A1/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
    • B65H54/02—Winding and traversing material on to reels, bobbins, tubes, or like package cores or formers
    • B65H54/28—Traversing devices; Package-shaping arrangements
    • B65H54/2821—Traversing devices driven by belts or chains
    • 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 a plurality of Spuleinrichtun conditions in a textile machine according to the preamble of claim 1 and a textile machine according to the preamble of claim 8.
  • the threads In the production, treatment and further processing of threads, it is common for the threads to be wound up into bobbins at the end of the process.
  • the thread is guided back and forth within a bobbin width by means of a traversing thread guide so that the thread can be wound into a cheese.
  • the drive of the traversing thread guide is preferably carried out in an oscillating manner, so that the thread guide is guided back and forth within a traversing stroke.
  • it is driven by an electric motor which is coupled to the traversing thread guide via a belt drive.
  • Such a textile machine is known, for example, from DE 10 2010 031 705 A1.
  • the winding devices are arranged in a machine frame alternately in layers one above the other and next to one another within the floor in order to wind up a large number of threads after texturing into thread bobbins.
  • a driven traversing thread guide is provided in each of the winding devices, which is driven in an oscillating manner via a belt drive and an electric motor.
  • the winding device has a control device which controls the speed of the Chan yaw thread guide within a traversing stroke.
  • a period of time that the traversing thread guide needs to run through a traversing stroke is taken into account in order to obtain the most accurate possible positioning of the traversing thread guide when winding the bobbin.
  • attempts are made in the known textile machine to produce as possible Fa denspulen with a uniform density via the speed control.
  • the electrical parameters are essentially recorded and used in order to influence the winding of the filament spool.
  • each of the winding devices has a pilot control device connected to the electric motor, by means of which the respective electric motor can be controlled with a drive torque adapted to the assigned belt drive.
  • each of the winding devices has a mechanical load torque that has to be provided by the electric motors.
  • the electric motors for driving the traversing thread guides in the winding devices are each controlled with a drive torque adapted to the belt drive concerned.
  • each of the winding devices has a pilot control device connected to the electric motor, by means of which the respective electric motor can be controlled with a drive torque adapted to the associated belt drive.
  • the method variant is particularly advantageous in which an actual target value comparison of the traversing strokes is carried out in each winding device at least at the start of the process and in which the traversing strokes are made from difference values at the end a winding cycle a correction value of the chan yaw strokes is determined and in which, depending on the correction value of the traversing strokes, the preset drive torque of the electric motor of the winding device concerned is changed in the subsequent winding cycle.
  • the electric motors for driving the traversing thread guides can thus be adapted to the individual tolerances of the mechanics.
  • the correction value is preferably determined from an average difference of the traversing strokes according to an advantageous variant of the method.
  • the actual / target deviations determined per traversing stroke can be added up over the entire winding cycle in order to then form an average value of the difference.
  • This mean difference value can then be used to determine the correction value of the traversing strokes.
  • a maximum differential value of the traversing strokes that occurs during a winding cycle.
  • the winding cycle determines the length of time in which a thread package is completely wound within the winding device.
  • the further method variant is preferably used, in which at the end of the subsequent winding cycle in the relevant the winding device the correction value of the traversing strokes is determined again and at which the drive torque of the electric motor is changed again as a function of the correction value.
  • This process can advantageously be carried out after each winding cycle of the winding device concerned until the correction value of the traversing strokes has reached a tolerance range.
  • the drive torques of the electric motors are matched to the respective actual states of the load torques of the drive transmission.
  • the tolerance range of the correction value of the traversing strokes is specified for the winding devices for winding the thread bobbins.
  • the tolerance range of the correction value of the traversing strokes is selected in such a way that the possible small deviations between the drive torque and the load torque are safely compensated for by the control and regulation of the electrical parameters.
  • each of the winding devices can start at the beginning of the process under identical target specifications, it is also provided that when the process starts, the electric motors of the winding devices for driving the traversing thread guides are controlled with a predetermined target drive torque. In this respect, a pre-control of the electric motors is carried out identically at the beginning of the process.
  • the preset pilot control currents which are fed to the electric motors in order to maintain a setpoint drive torque are preferably controlled and changed.
  • Each of the electric motors of the winding devices can be operated with an individual pilot current feed.
  • the textile machine is preferably designed in such a way that the control devices of the winding devices are designed in such a way that an actual / target comparison of the traversing strokes can be carried out at least at the start of the process At the end of a winding cycle can be transferred to a correction value of the traversing strokes and that the correction value of the traversing strokes can not be generated for the assigned pilot control device. This ensures that the electric motors are controlled with an individual pre-control depending on the actual / target deviations of the traversing strokes.
  • the method according to the invention for controlling a plurality of winding devices in a textile machine and the textile machine according to the invention are therefore particularly suitable for winding identical thread spools in a plurality of winding devices.
  • the different tolerances in the drive trains of the traversing thread guides with a large number of winding devices can be compensated individually by an adapted pilot control and thus by an adapted drive torque of the electric motor.
  • Each of the winding devices adjusts itself automatically to a drive train optimized for the laying of the thread.
  • Fig. 1 schematically shows a cross-sectional view of a textile machine according to the invention
  • FIG. 1 2.2 schematically shows several views of a winding device of the textile machine according to FIG. 1
  • FIG. 3 schematically shows a plurality of thread trays at the end of a thread spool
  • FIG. 1 an exemplary embodiment of the textile machine according to the invention is shown schematically in a cross-sectional view.
  • the exemplary embodiment of the textile machine has a plurality of processing stations in order to texturize a plurality of threads.
  • the thread path of one of the processing points is shown schematically, the adjacent processing points being arranged next to one another along a longitudinal side of the machine.
  • Each of the processing stations is assigned a presentation station 3 which is arranged in a gate 2.
  • the gate 2 here contains several presentation stations 3 for several processing stations.
  • a supply reel 3.1 and a reserve reel 3.2 are provided within the supply station 3.
  • a thread 21 is pulled from the supply bobbin 3.1 and textured in the processing point.
  • delivery mechanisms 4.1, 4.2, 4.3 and 4.4 are arranged in a machine frame 1 to form a thread run.
  • a Schuein direction 5 a cooling device 6 and a friction unit 7 is arranged between the delivery mechanisms 4.1 and 4.2. This aggregate 5, 6 and 7 form a so-called texturing zone in which the thread 21 is crimped.
  • a swirl device 8 is seen between the delivery mechanisms 4.2 and 4.3.
  • a set heating device 9 is arranged between the delivery mechanisms 4.3 and 4.4 in order to be able to carry out a thermal post-treatment on the thread, in particular a shrink treatment.
  • the delivery mechanism 4.4 is followed by a winding device 10 in which the thread 21 is wound into a thread bobbin 11.
  • a winding device 10 in which the thread 21 is wound into a thread bobbin 11.
  • a plurality of Spuleinrich lines 10 are arranged in levels one above the other, since the width of a winding device 10 is greater than the width of the upstream units in the thread run.
  • three delivery mechanisms 4.1 are arranged on the machine frame 1 within the width of one of the winding devices 10.
  • the winding devices 10 are designed identically and each have a swiveling bobbin holder 10.1, a drive roller 10.2 and a thread laying device 10.3 in order to wind the thread bobbin 11.
  • the thread spool 11 is driven by the drive roller 10.2.
  • the bobbin holder 10.1 is preferably fork-shaped and holds a Spulhül se between two clamping plates, not shown here, on the circumference of which the thread bobbin 11 is wound.
  • the thread is guided back and forth through the thread-laying device 10.3 within a bobbin width in order to produce a cross winding on the bobbin 11.
  • FIGS. 2.1 and 2.2 one of the winding devices 10 is shown schematically in several views.
  • Fig. 2.1 shows a front view
  • Fig. 2.2 a 39an view of the winding device 10 is shown. The following description applies to both figures.
  • FIGS. 2.1 and 2.2 of the winding device 10, only the thread-laying device 10.3 and the thread bobbin 11 wound on the winding tube 20 are shown. So the incoming thread 21 is guided back and forth by a traversing thread guide 14 within a Spulenbrei te.
  • the traversing thread guide 14 is coupled ge to a belt drive 16, which is driven by an electric motor 15 to oscillate.
  • the belt drive 16 consists of a drive wheel 16.1 and a plurality of drive wheels 16.3, which are wrapped by an endless belt 16.2.
  • the drive wheel 16.1 is directly connected to the electric motor 15.
  • the traversing thread guide 14 is guided within a sliding guide 16.4 by the belt 16.2.
  • the electric motor 15 has an incremental encoder 17 which determines the rotation of a drive shaft.
  • the incremental encoder 17 is placed directly on a drive shaft of the electric motor 15.
  • the incremental encoder 17 can be coupled to the drive shaft of the electric motor 15, for example via a gear or a similar mechanical connection.
  • the incremental encoder 17 is connected to a control device 18.
  • the electric motor 15 is assigned a pilot control device 19 which is connected to the control device 18.
  • the electric motor 15 is connected to a motor controller 22 which is assigned to the control device 18.
  • the winding device 10 To wind a thread in one of the processing stations, the winding device 10 is wound the thread on the circumference of the winding tube 20 to form the thread bobbin 11.
  • the Fa denspule 11 and the winding tube 20 are driven by the drive roller 10.2 with a constant peripheral speed.
  • the traversing thread guide 14 To lay the thread 21 within the winding width of the thread bobbin 11, the traversing thread guide 14 is driven in an oscillating manner by the belt drive 16 and the electric motor 15. So the Chan yaw thread guide 14 carries out a large number of traversing strokes within the bobbin width of the bobbin 11.
  • an identical setpoint is given to the electric motor 15 on each of the winding devices 10 of the textile machine.
  • a pilot current is fed to the electric motor 15 in such a way that the electric motor 15 drives the belt drive 16 in an oscillating manner with a setpoint drive torque.
  • the length of the traversing stroke is also defined via a target specification of angle increments so that the traversing densammlung 14 executes identical traversing strokes in each winding device 10. At the traversing stroke ends, however, it is necessary for the traversing thread guide 14 to reverse, so that the electric motor decelerates and accelerates
  • a front end of the bobbin 11 is shown, with three under different thread trays 23.1, 23.2 and 23.3 are shown, which were generated with different chen belt tensions of the belt drive 16 in several winding devices 10.
  • a first deposit 23.1 the thread is shortened ver in the thread reversal to a desired width of the thread bobbin 1 1 stored. The difference to the nominal width of the thread bobbin is marked with the lower case letter a.
  • the thread deposit 23.1 could have been produced with a winding device in which the belt drive 16 has a relatively high load torque due to an excessive belt tension.
  • a further thread deposit 23.3 is shown, in which the Spulein direction 10 would produce a thread bobbin 11, which goes beyond the nominal width of the thread coil 11.
  • the enlarged coil width is marked with the lowercase letter b.
  • This winding device 10 could alswei sen a belt drive 16, which contains, for example, a relatively low belt tension.
  • each traversing stroke of the traversing thread guide 14 determines the deviations between a target value specification and an actual value.
  • the determined difference values te of the traversing strokes are recorded continuously during the winding of the bobbin 11 and added up at the end of the winding cycle. The sum of the difference values is then averaged and calculated to give an average difference value.
  • This mean difference value from the actual / target comparison of the traversing strokes is then converted to a correction value which leads to a change in the precontrol of the electric motor 15.
  • the correction value can thus be converted within the control device 18 to a control signal which is fed to the pilot control device 19.
  • the pilot control device 19 changes the pilot control, for example, by increasing or reducing the pilot control current to the electric motor 15.
  • the electric motor 15 is then operated with a changed drive torque during a subsequent winding cycle.
  • the drive torque is adapted to the load torque, it being possible to increase or decrease the drive torque compared to a setpoint drive torque. So all winding device 10 in the textile machine can be adapted to the respective drive conditions for driving the traversing thread guide 14.
  • Each of the electric motors of the winding devices 10 can thus be operated with an individual pre-control which can deviate from the setpoint value preset given at the start of the process.
  • the machine in the method according to the invention and the textile machine according to the invention thus have the particular advantage that with a large number of spooling devices lines each of the winding device is able to perform a self-correction, in particular to compensate for the tolerances resulting from the mechanics of the drive. In this way, very even bobbins can be wound in all winding devices.
  • other events that can be detected by the incremental encoder on the motor shaft and have an influence on the coil width offset can be advantageously recognized by the invention and, if necessary, corrected. B. with egg nem replacement motor with slightly different characteristics.

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  • Winding Filamentary Materials (AREA)

Abstract

L'invention concerne un procédé de commande d'une pluralité de dispositifs de bobinage (10) dans une machine textile ainsi qu'une machine textile. Un fil est enroulé en une bobine de fil (11) dans chacun des dispositifs de bobinage (10), le fil étant guidé au moyen d'un guide-fil (14) à entraînement oscillant dans une largeur de la bobine de fil. Le guide-fil (14) est entraîné par un moteur électrique (15) et un entraînement par courroie de telle manière que le guide-fil (14) exécute une pluralité de levées de va-et-vient dans la largeur de la bobine. Selon l'invention, en raison des différentes tensions de courroie des entraînements par courroie (16) dans les dispositifs de bobinage (10), les moteurs électriques (15) sont commandés pour entraîner les guides-fils (14) dans les dispositifs de bobinage (10) avec respectivement un couple d'entraînement adapté à l'entraînement par courroie (16) concerné. À cet effet, un appareil de commande pilote (19) séparé est associé à chaque moteur électrique (15) dans les dispositifs de bobinage.
PCT/EP2020/056805 2019-03-14 2020-03-13 Procédé de commande d'une pluralité de dispositifs de bobinage ainsi que machine textile WO2020182980A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019001857 2019-03-14
DE102019001857.5 2019-03-14

Publications (1)

Publication Number Publication Date
WO2020182980A1 true WO2020182980A1 (fr) 2020-09-17

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042606A1 (fr) * 1997-03-20 1998-10-01 Barmag Ag Procede de commande d'un dispositif d'ensouplage croise
DE19950285A1 (de) 1999-10-19 2001-04-26 Rieter Ag Maschf Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
DE10300106A1 (de) * 2002-01-29 2003-08-21 Murata Machinery Ltd Traversiersteuervorrichtung
DE10322533A1 (de) * 2002-05-23 2003-12-11 Murata Machinery Ltd Traversiervorrichtung und Traversiersteuervorrichtung
DE102010031705A1 (de) 2009-07-24 2011-01-27 Tmt Machinery, Inc. Steuereinrichtung für eine Durchlaufvorrichtung
WO2015078763A1 (fr) 2013-11-28 2015-06-04 Oerlikon Textile Gmbh & Co. Kg Unité va-et-vient et procédé de commande d'une unité va-et-vient

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998042606A1 (fr) * 1997-03-20 1998-10-01 Barmag Ag Procede de commande d'un dispositif d'ensouplage croise
DE19950285A1 (de) 1999-10-19 2001-04-26 Rieter Ag Maschf Verfahren und Vorrichtung zum Aufwickeln eines Fadens auf eine Spule
DE10300106A1 (de) * 2002-01-29 2003-08-21 Murata Machinery Ltd Traversiersteuervorrichtung
DE10322533A1 (de) * 2002-05-23 2003-12-11 Murata Machinery Ltd Traversiervorrichtung und Traversiersteuervorrichtung
DE102010031705A1 (de) 2009-07-24 2011-01-27 Tmt Machinery, Inc. Steuereinrichtung für eine Durchlaufvorrichtung
WO2015078763A1 (fr) 2013-11-28 2015-06-04 Oerlikon Textile Gmbh & Co. Kg Unité va-et-vient et procédé de commande d'une unité va-et-vient

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