EP3060506B1 - Galette und verfahren zur steuerung einer galette - Google Patents

Galette und verfahren zur steuerung einer galette Download PDF

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Publication number
EP3060506B1
EP3060506B1 EP14786520.8A EP14786520A EP3060506B1 EP 3060506 B1 EP3060506 B1 EP 3060506B1 EP 14786520 A EP14786520 A EP 14786520A EP 3060506 B1 EP3060506 B1 EP 3060506B1
Authority
EP
European Patent Office
Prior art keywords
godet
shell
motor
electric drive
control electronics
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
EP14786520.8A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP3060506A1 (de
Inventor
Jürgen STRÖWER
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
Original Assignee
Oerlikon Textile GmbH and 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
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Publication of EP3060506A1 publication Critical patent/EP3060506A1/de
Application granted granted Critical
Publication of EP3060506B1 publication Critical patent/EP3060506B1/de
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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
    • B65H63/00—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package
    • B65H63/003—Warning or safety devices, e.g. automatic fault detectors, stop-motions ; Quality control of the package responsive to winding of yarns around rotating cylinders
    • 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
    • B65H51/02—Rotary devices, e.g. with helical forwarding surfaces
    • B65H51/04—Rollers, pulleys, capstans, or intermeshing rotary elements
    • B65H51/08—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements
    • B65H51/12—Rollers, pulleys, capstans, or intermeshing rotary elements arranged to operate in groups or in co-operation with other elements in spaced relation to provide a series of independent forwarding surfaces around which material is passed or wound
    • 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
    • B65H51/32—Supporting or driving arrangements for forwarding devices
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J1/00—Modifying the structure or properties resulting from a particular structure; Modifying, retaining, or restoring the physical form or cross-sectional shape, e.g. by use of dies or squeeze rollers
    • D02J1/22—Stretching or tensioning, shrinking or relaxing, e.g. by use of overfeed and underfeed apparatus, or preventing stretch
    • D—TEXTILES; PAPER
    • D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
    • D02J—FINISHING OR DRESSING OF FILAMENTS, YARNS, THREADS, CORDS, ROPES OR THE LIKE
    • D02J13/00—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass
    • D02J13/005—Heating or cooling the yarn, thread, cord, rope, or the like, not specific to any one of the processes provided for in this subclass by contact with at least one rotating roll
    • 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 godet for guiding a thread according to the preamble of claim 1, a method for controlling a godet according to the preamble of claim 10 and a method for operating a godet according to the preamble of claim 16.
  • Such Galette and a method for controlling a galette are for example from the WO 2007/134 732 known.
  • the winding sensor After removal of the filament winding on the circumference of the godet casing of the winding sensor is adjusted in its initial position, so that the interrupted power supply of the electric drive is restored, so that a restart of the drive is possible.
  • the winding sensor can be used directly as a switch to restart the electric drive.
  • godets are also known in the prior art, in which the activation of the electric drive is effected by a separate switch. Regardless of whether the switch perceives additional functions for winding monitoring, complex cabling between the switch and the electric drive are required. The operation of the switch is done by an operator who re-applies the thread to the circumference of the godet after a business interruption.
  • Another object of the invention is to provide a method for operating a galette within a textile machine, which is particularly adapted to a process flow and its requirements.
  • the invention is based on the recognition that the godets used to guide a thread of a textile machine have a relatively low-mass godet casing, which has a relatively low mass inertia.
  • manually generated rotational movements on a godet shell of such a galette without aids by an operator executable. Since it is usual after an interruption in operation that an operator manually re-applies the thread by means of a suction gun and leads the thread from the front side of the godet shell, a manual rotary movement can be initiated by the operator on the godet shell.
  • the manually generated rotational movement on the godet casing is transferred into the electric drive and can be detected and used for a corresponding restart. In that regard, none additional switching means required to perform the activation of the drive.
  • the godet according to the invention is preferably designed such that the electric drive is formed by a brushless synchronous motor with an integrated control electronics, the godet casing firmly connected to a motor shaft of the synchronous motor is.
  • the motor shaft is moved within the synchronous motor.
  • the magnetic coupling between stator and rotor within the synchronous motor can thus be used to generate directly electrically usable signals.
  • control electronics has a voltmeter for detecting an induced voltage and an evaluation unit for generating a start signal.
  • the control electronics is designed with an ammeter for detecting a motor current, wherein the evaluation unit generates a corresponding start signal from the current measured value.
  • the evaluation unit has a differential operator for determining an angular acceleration of the motor shaft of the synchronous motor.
  • a slew rate of the current or voltage change is proportional to an angular acceleration of the motor shaft. Only if there is sufficient angular acceleration of the motor shaft, a restart must be carried out.
  • the evaluation unit has a comparator for comparing an actual value of the angular acceleration with a stored threshold value. This can be eliminated within the electric drive caused by unwanted rotational movements of the godet casing signal generation.
  • the development of the invention in which the godet casing with a short distance, a friction agent is assigned, which opposite to the godet casing has a friction surface and wherein the electric drive has an operating torque monitoring.
  • a friction agent is assigned, which opposite to the godet casing has a friction surface and wherein the electric drive has an operating torque monitoring.
  • a thread is preferably performed with several wraps on the circumference of the godet shell.
  • the godet casing interacts together with a rotatably mounted roller for guiding a yarn in a plurality of wraps.
  • the godet according to the invention is basically also suitable for guiding a plurality of threads at the same time on the circumference of the godet jacket. It is essential here that the godet jacket coupled to the electric drive can be manually converted into a rotary movement.
  • the inventive method for controlling a galette is characterized by the fact that no switching controls for activation of the drive must be bridged. On the contrary, the drive of the godet casing can be restarted directly by a manually generated rotary movement of the godet casing.
  • the godet casing is driven by a motor shaft of a brushless synchronous motor with integrated control electronics.
  • BLDC motors are particularly suitable for being able to execute control algorithms directly on the drive.
  • a current or a voltage of the synchronous motor can be measured during the rotational movement of the motor shaft and directly generate a start signal within the control electronics from the measured values.
  • a temporal increase in current and / or a temporal increase in voltage of the synchronous motor during the rotational movement of the motor shaft is preferably measured and then from the measured values to generate a start signal within the control electronics.
  • the slew rate of a current or voltage induced by a manually generated rotary motion is proportional to an angular velocity of the motor shaft.
  • an angular acceleration of the motor shaft can be determined from the rising speeds of the current changes or voltage changes, which can lead to a start signal as a function of a comparison between an actual value and a threshold value of the angular acceleration.
  • the control of the galette can be further improved, in particular by switching off the drive, by continuously monitoring an operating torque of the electric drive. This can be achieved without further aids when exceeding a predetermined limit operating torque shutdown of the drive.
  • the method according to the invention for operating a godet in a textile machine is characterized in that all the manipulations to be carried out on the godet after a yarn break are directly related to the godet casing. So it is necessary to apply the thread on the circumference of the godet mantle and to restart the godet mantle. Thus, all essential handling directly on the godet coat by the operator executable.
  • the operator To restart the drive, the operator generates a rotary movement of the godet mantle with one hand.
  • the godet casing can be transferred in a rotation with a fast hand movement in the direction of rotation of the godet casing.
  • Within the rotation of the godet roll performs a continuous rotation with several turns. The operator preferably puts the hand flat on the circumference of the godet shell with some force, then to accelerate the godet coat in the direction of rotation with rapid sideways movement of the hand.
  • the rotational movement can be generated preferably both in the direction of rotation of the motor and in opposition to the direction of motor rotation, the godet casing being driven by a brushless synchronous motor with integrated control electronics.
  • the signal generation it does not matter in which direction of rotation of the motor shaft an induction of the signals takes place.
  • the drive is started and stopped by a manually actuated switch.
  • switches can be used as a group switch be designed to control multiple godets or as a single switch for controlling individual godets.
  • Fig. 1 an embodiment of the godet according to the invention is shown in a cross-sectional view.
  • the godet has a cup-shaped godet casing 1, which is non-rotatably attached to a cantilevered free end of a motor shaft 3 of an electric drive 2.
  • the electric drive 2 is designed in this embodiment as a brushless synchronous motor 4, which is also known as a so-called BLDC motor.
  • BLDC motor so-called BLDC motor
  • the electric drive 2 and the godet casing 1 are designed as a structural unit, wherein the electric drive 2 has a multi-part housing.
  • the motor shaft 3 of the synchronous motor 2 is rotatably supported in a bearing housing 8 by a plurality of bearings 9.
  • the motor shaft 3 has an opposite to the godet casing 1 end on which a rotor 10 is arranged.
  • the rotor 10 is formed by a permanent magnet not described here.
  • the rotor 10 is surrounded by a stator 11 which carries a plurality of windings.
  • the stator 11 is held by a motor carrier 12.
  • the motor mount 12 extends between the bearing housing 8 and an electrical housing 13 arranged directly on the synchronous motor 4.
  • the electrical housing 13 contains the control electronics 5.
  • the electrical housing 13 and the bearing housing 8 are interconnected by a plurality of retaining webs 31.
  • the control electronics 5 is symbolically represented in this embodiment by a circuit board 14 and a power module 15, an inverter 17 and an evaluation unit 19.
  • the electronic control unit 5 has a measuring means 16, which is usually associated with the evaluation device 19.
  • a storage means 18 is provided, which is usually integrated in the evaluation unit 19.
  • the storage means 18 and the evaluation unit 19 may be formed as a microprocessor.
  • the control electronics 5 is coupled via a supply line 21 with a voltage source, not shown here.
  • a second connection to the control electronics 5 represents a data line 20, which allows a data exchange with a higher-level machine control unit 22.
  • the control electronics 5 is coupled directly to a switch 23 in order to perform an activation of the electric drive 2 at a process start or a process end.
  • FIG. 1 Galette The function of in Fig. 1 Galette shown below with reference to the other Figures 2.1, 2.2 and 2.3 explained.
  • Fig. 2.1, 2.2 and 2.3 each is a view of the embodiment Fig. 1 shown when used in a textile machine.
  • the Fig. 2.1 shows the godet in operation with a thread guide
  • Fig. 2 the galette is shown in operation in forming a filament winding
  • Fig. 2.3 the godet is shown at a restart of the electric drive 2.
  • the godet according to Fig. 1 held on a support 27.
  • the godet casing 1 is held on a front side of the carrier 27 and the electric drive 2 on a rear side of the carrier 27.
  • the godet 1 is assigned a rotatably mounted roller 28 at a distance.
  • a friction means 24 is fixed to the front side of the carrier 27, which is held with a friction surface 26 at a small distance to the godet casing 1.
  • the friction means 24 is formed in this embodiment by a pin 27 fixed to the carrier 25, which is aligned coaxially with the godet casing 1 and extends substantially over the entire length of the godet casing 1.
  • Fig. 2.1 the situation is shown in which a yarn 29 is guided with several wraps on the circumference of the godet casing 1 and on the circumference of the roller
  • the godet casing 1 is driven in this operating situation by the synchronous motor 4 at a substantially constant speed. Dier control of the synchronous motor 4 via the control electronics 5, wherein the target speed of the control electronics 5 is placed over the data input.
  • any change in the actual value of the operating torque in the control electronics 5 is detected and compared with a stored limit of the operating torque of the synchronous motor 4.
  • the friction surface 26 is exerted to generate an additional operating torque which leads to a very rapid increase in the operating torque of the synchronous motor 4 leads.
  • a switching signal for switching off the synchronous motor 4 is generated in the evaluation unit 19 of the control electronics 5. The motor shaft 3 with the godet casing 1 is stopped, so that the filament winding 30 can be removed on the circumference of the godet casing 1 by an operator.
  • Fig. 2.3 the situation is shown shortly after the end of the business interruption.
  • an operator guides the yarn 29 in a hand injector 32 to apply the yarn to the circumference of the godet roll 1.
  • the godet 1 is previously performed by a hand movement of the operator in a rotary motion.
  • the godet casing 1 is contacted by hand on the circumference, so that the operator effects an accelerated rotation of the godet casing 1 by a fast hand movement generated in the direction of rotation.
  • the godet casing 1 rotates with the motor shaft 3, so that a signal is induced via the rotor 10 within the synchronous motor 4.
  • Fig. 3 is a flowchart for generating a start signal of the synchronous motor 4 is shown schematically.
  • the electronic control unit 5 has a measuring means 16 designed as an ammeter or alternatively as a voltmeter can be.
  • an induced voltage U or an induced motor current I is measured by the measuring means 16 by the manually generated rotational movement of the godet casing and the motor shaft 3.
  • the measured values of the induced voltage or of the induced motor current are supplied to the evaluation unit 19 of the control electronics 5.
  • the amplitudes of the signals and thus the absolute values of the induced voltage and / or induced motor current can not be used unambiguously.
  • the evaluation unit has a differential operator 33, which detects the rate of rise of the induced voltage and / or the induced motor current.
  • the slew rate is in Fig. 3 marked with the quotient d / dt. This slew rate is proportional to a winding speed of the motor shaft 3.
  • an angular acceleration required for starting the synchronous motor 4 is stored as the threshold value as.
  • the threshold values can preferably be stored in the storage means 18 of the control electronics.
  • the evaluation unit has a comparator 34 which determines the determined angular acceleration with the threshold value of the Angular acceleration compares.
  • a control signal for activating the synchronous motor 4 is generated via the evaluation unit 19.
  • the evaluation unit 19 is for this purpose corresponding signals to the inverter 17.
  • no start function is triggered by the evaluation unit 19.
  • FIG. 3 schematically shows a time course of an induced motor current.
  • time t is plotted on the abscissa and motor current I on the ordinate.
  • the diagram in Fig. 4 shows two gradients, which are designated as I 1 and I 2 .
  • the motor current I 1 has been measured on the synchronous motor 4 in the case of the rotational movement of the godet jacket manually generated by an operator.
  • the limit curve labeled I 2 represents, for example, an unwanted rotational movement of the godet casing during the removal of a yarn package.
  • the courses of the induced motor currents I 1 and I 2 differ essentially by a slope, for example, from a time difference t 1 -t 2 visible becomes.
  • the current values I 1 and I 2 are measured, wherein the measured value I 1 is greater than the measured value I 2 .
  • the current values I 1 . and I 2 ' measured.
  • the measured value change per time difference is now registered and evaluated.
  • t 1 - t 2 takes place change of measured value I 1 '- I 1 and I 2' - I 2 is a measure of
  • Fig. 5 is shown a further embodiment of the godet according to the invention, as used for example in a textile machine.
  • the execution example in Fig. 5 shows a total of four godets, which are arranged on a common carrier 27.
  • the carrier 27 holds on a front side a plurality of godet coats 1 and a plurality of rollers 28 which are cantilevered freely rotatably supported on the carrier 27.
  • the godet coats 1 are each coupled via a motor shaft 3 with an electric drive 2 arranged on the rear side of the carrier 27.
  • a total of four electric drives 2 are arranged side by side.
  • the number of drives 2 and the number of godet coats on the carrier 27 are exemplary. In principle, eight, twelve or sixteen or even more godets can be arranged on a godet carrier.
  • the godets 27 held on the carrier are identical to the embodiment according to FIG Fig. 1 executed.
  • the power supply of the electric drives 2 by a supply line 21, which is connected via a group control unit 35 and a group switch 36 with a superordinate supply unit not shown here.
  • a data line 20 which is preferably designed as a bus system, the drives are the second connected to the group control unit 35.
  • the group control unit is coupled to a machine control unit 22.
  • each of the electric drives 2 being individually addressable and controllable.
  • a separate switch 23 could be assigned to each electric drive 2 in order to be able to carry out, for example, a standstill of the godet casing during product change.
  • the switches 23 are shown in dashed lines.
  • the operation and control of the godet according to the aforementioned embodiment is after Fig. 1 and 2 , In that regard, reference is made to the abovementioned description.
  • the godet according to the invention as well as the method according to the invention for controlling the godet and the method according to the invention for operating the godet are particularly suitable for obtaining a fast and reliable process control at a multiplicity of processing points within a textile machine. This can be avoided by using the brushless synchronous motors with integrated control electronics consuming wiring. In addition, fast reaction times can be realized with changed operating states.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Quality & Reliability (AREA)
  • Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
  • Winding Filamentary Materials (AREA)
  • Forwarding And Storing Of Filamentary Material (AREA)
  • Spinning Methods And Devices For Manufacturing Artificial Fibers (AREA)
  • Rolls And Other Rotary Bodies (AREA)
EP14786520.8A 2013-10-26 2014-10-21 Galette und verfahren zur steuerung einer galette Active EP3060506B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013017865 2013-10-26
PCT/EP2014/072549 WO2015059142A1 (de) 2013-10-26 2014-10-21 Galette und verfahren zur steuerung einer galette

Publications (2)

Publication Number Publication Date
EP3060506A1 EP3060506A1 (de) 2016-08-31
EP3060506B1 true EP3060506B1 (de) 2018-03-28

Family

ID=51752139

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14786520.8A Active EP3060506B1 (de) 2013-10-26 2014-10-21 Galette und verfahren zur steuerung einer galette

Country Status (5)

Country Link
EP (1) EP3060506B1 (enExample)
JP (1) JP6366724B2 (enExample)
CN (1) CN105683074B (enExample)
TR (1) TR201808177T4 (enExample)
WO (1) WO2015059142A1 (enExample)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3153609B1 (de) * 2015-10-05 2021-11-10 Hanning Elektro-Werke GmbH & Co. KG Antriebsanordnung für eine textilmaschine
EP3153610B1 (de) * 2015-10-05 2021-05-05 Hanning Elektro-Werke GmbH & Co. KG Ansteuereinrichtung
CN108350616B (zh) * 2015-11-11 2021-08-06 欧瑞康纺织有限及两合公司 用于监控在变形期间的质量的方法以及变形装置
JP7216091B2 (ja) * 2017-11-25 2023-01-31 エーリコン テクスティル ゲゼルシャフト ミット ベシュレンクテル ハフツング ウント コンパニー コマンディートゲゼルシャフト 巻取り装置を監視するための方法、および巻取り装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FI46268C (fi) * 1971-02-19 1973-02-12 Kemira Oy Moottorikäyttöinen galetti.
JP3367717B2 (ja) * 1993-08-03 2003-01-20 株式会社リケン 直流モータ制御回路及び直流モータ
JP2002154749A (ja) * 2000-11-21 2002-05-28 Murata Mach Ltd 糸送りローラへの糸巻付き検出装置
FR2870837A1 (fr) * 2004-05-26 2005-12-02 Rieter Textile Machinery Fr Dispositif pour l'entrainement par friction d'un element filiforme
DE102005029937B4 (de) * 2005-06-28 2014-02-20 Saurer Germany Gmbh & Co. Kg Verfahren zur Ermittlung der Qualitätsparameter eines Fadens
TW200804163A (en) 2006-05-18 2008-01-16 Saurer Gmbh & Co Kg Delivery mechanism
DE102009058827A1 (de) * 2009-12-18 2011-06-22 Oerlikon Textile GmbH & Co. KG, 42897 Verfahren zum Betreiben einer Arbeitsstelle einer Spulmaschine und Arbeitsstelle einer Spulmaschine

Also Published As

Publication number Publication date
CN105683074B (zh) 2019-03-08
JP6366724B2 (ja) 2018-08-01
JP2016535713A (ja) 2016-11-17
CN105683074A (zh) 2016-06-15
EP3060506A1 (de) 2016-08-31
WO2015059142A1 (de) 2015-04-30
TR201808177T4 (tr) 2018-07-23

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