EP0564018B1 - Dispositif et procédé de régulation de la tension d'un matériau filiforme, en particulier d'un fil de bobinage pour bobines électriques - Google Patents

Dispositif et procédé de régulation de la tension d'un matériau filiforme, en particulier d'un fil de bobinage pour bobines électriques Download PDF

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Publication number
EP0564018B1
EP0564018B1 EP93200601A EP93200601A EP0564018B1 EP 0564018 B1 EP0564018 B1 EP 0564018B1 EP 93200601 A EP93200601 A EP 93200601A EP 93200601 A EP93200601 A EP 93200601A EP 0564018 B1 EP0564018 B1 EP 0564018B1
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EP
European Patent Office
Prior art keywords
wire
signal
direct current
tension
current motor
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.)
Expired - Lifetime
Application number
EP93200601A
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German (de)
English (en)
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EP0564018A2 (fr
EP0564018A3 (en
Inventor
Ernst Arnold
Hansrudi Sigrist
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Meteor AG
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Meteor AG
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Publication of EP0564018A3 publication Critical patent/EP0564018A3/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
    • 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
    • B65H59/16—Braked elements rotated by material
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/04—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing coils
    • H01F41/06—Coil winding
    • H01F41/094—Tensioning or braking devices

Definitions

  • the invention relates to a device for regulating the tension of a thread-like material guided from a supply roll to a spool of a winding device with the features specified in the preamble of claim 1 and a method for controlling such a device.
  • the tensioning forces for the winding wire in a winding system for electrical coils are to be kept constant in a predetermined value by an automatic wire tension regulator being arranged between a wire supply roll and the coil winding device.
  • the requirements for such a wire tension controller are diverse because the wire tension can fluctuate greatly during the winding process due to the coil shape, and the coil shape is round, square, rectangular, oval and the like. can be formed and is influenced by the growing diameter of the winding during winding. It must be taken into account that the wire speed, for example in the case of technologically related process sequences, can also assume negative values.
  • the fast effectiveness of the wire tension controller is particularly important, because delays due to inertia bring uncontrollable wire-tension ratios, which can severely affect the quality of the finished winding.
  • the voltage is regulated, for example, by mechanical and / or electromechanical means, preferably by a wire compensation arm, optionally with a potentiometer assigned to it.
  • Devices of this type have major disadvantages caused by inertia, in particular due to running or braking of the wire during a currently occurring negative wire speed and undesirable vibrations of the wire compensation arm.
  • a device for voltage regulation of a wire for winding an electrical coil which provides an improvement through an automatic regulation of the wire tension and its braking.
  • the device consists of a pre-brake, which is formed from two rollers covered with felt, one of which is permanently driven in the opposite direction to the direction of travel of the wire by a synchronous motor and the other is carried along as a pressure roller by the driven roller.
  • the pre-tensioned wire is guided through a grooved roller through at least 360 °, which is driven by a further motor in the wire run and wire return directions.
  • the grooved roller is connected to a tachometer, which emits a signal, whereby the motor is controlled by a controller.
  • a strain gauge provides a signal representative of the wire tension, which is compared to a target value.
  • the resulting signal is superimposed on the signal from the tachometer in order to influence the controller via a control signal.
  • the change in wire tension affects the signal and the speed of the motor changes. to suppress this change in voltage.
  • the quality of the wound coil at high wire speeds is impaired by voltage differences.
  • the winding wire is guided over a spring-loaded swivel arm.
  • the winding wire then runs over a roller which is provided with a code disk in order to bring about corresponding corrections of the strain gauge signal via an additional control device.
  • a wire tension control device in which the wire voltage is measured here with the aid of a strain gauge, which provides an actual wire voltage signal which is compared with a predetermined setpoint wire voltage signal with the aid of a comparator, the output signal of which is then used the regulation of the wire tension is used.
  • the invention has for its object to provide a device for voltage regulation, in particular of thin winding wires, which are wound at high tightening speeds, without the need for compensation elements such as wire compensation lever, code disk and a pre-brake with felt clamps, each with additional non-programmable setting elements by hand must be compared, are required. Furthermore, the invention is intended to provide a method for controlling such a device.
  • One advantage is the torque control of the - brushless - DC motor by means of a digital current control circuit, through which the speeds of the brake wheel are derived in an advantageous manner.
  • the setpoint wire tension control can also be changed without interruption during the winding process.
  • the digital parameter specification and digital control loops ensure precise reproducibility of the winding process.
  • Another advantage is that all the necessary control and regulating elements, including the power supply units, are integrated in the wire-pull regulator, so that additional control units are also unnecessary.
  • a two-wire line bus system
  • several, for example up to 32 wire tension controllers can be connected to a common machine control of the winding device, which can be individually programmed, with additional statistical and operating data being recorded and registered.
  • a thread-like material such as aluminum, copper, tungsten, gold and platinum winding wires, but also plastic and glass fibers, preferably in the form of continuous fibers, is hereinafter referred to as a winding wire 25 , out of a supply spool (not shown) in the direction of the arrow of a device designed as a wire voltage regulator 10-1 between a retraction roller 16 driven by a DC motor 14 by means of a transmission 15 in the wire return direction and a pressure roller 17 which can be pressed on by means of a spring 19.
  • the pressure roller 17 carried by the retraction roller 16 can be pivoted out or delivered relative to it.
  • the retraction roller 16 and / or the pressure roller 17 is provided with correspondingly suitable coverings, for example made of felt, ceramic, metal, rubber, vulcanized rubber and / or an antistatic material, with smooth winding wire made of antistatic material for thin winding wires existing toppings are preferred.
  • the contact pressure of the pressure roller 17 can be adjusted by adjusting the spring length 19 depending on the type of wire and -thickness can be changed.
  • the revolutions of the retraction roller 17 vary in accordance with the wire speed.
  • the winding wire is subsequently wrapped 360 ° in its groove via a brake wheel 22, the brake wheel being controlled by a brushless DC motor 20 with incremental encoder 21 in four-quadrants and in wire run or wire return. Direction is driven.
  • the brake wheel 22 is also provided with a flexible covering, preferably made of rubber, Vulkolan or the like, so that these measures ensure a non-slip wire guide in the wire run and wire return directions.
  • the applied voltage of the winding wire 25 is subsequently continuously determined by a pathless force measuring device, preferably a stretch mark 30, in that the winding wire 25 does not lead to a measuring roller 32 and the stretch mark 30 and at a constant angle around a wire deflection 34, for example an eyelet or swab tail shown coil of a winding device is pulled.
  • a pathless force measuring device preferably a stretch mark 30
  • the winding wire 25 does not lead to a measuring roller 32 and the stretch mark 30 and at a constant angle around a wire deflection 34, for example an eyelet or swab tail shown coil of a winding device is pulled.
  • a wire deflection 26 and a further wire deflection 27 are provided in the area below the brake wheel 22.
  • An on / off switch 12 and a light indicator 13 "green / red (fault)" are also arranged on the front side of the wire-pull regulator housing 11.
  • the DC motor 20 is brushless and regulated in four quadrants, so that a long service life is guaranteed even at very high wire speeds of approximately 30 m / s.
  • an amplified rotor position signal S2 is supplied to a control unit 40 in the motor controller 28 and, on the other hand, an actual value torque signal S3 derived from an energy supply E supplied to the direct current motor 20 likewise influences the control unit 40 by means of a digital current control loop 20, S1.28, S3.40.
  • the setpoint wire voltage signal S6 or S6 ' is compared with a signal S5 amplified in an amplifier 38 with the instantaneous wire voltage 30, S4, 38, S5, 40 in the control unit 40, corrected if necessary (FIG. 3) as a manipulated variable.
  • Signal S7 to the motor controller 28 and in this amplified output as energy supply E to the direct current motor 20 in order to convert the voltage of the wire 25 from its current actual value to the desired value.
  • the digital wire tension control is superimposed on the torque control, with the DC motor 20 forming a closed control circuit 30, S4, 38, S5, 40, S7, 28, E, 20 with the pathless force measuring device 30, preferably the strain gauge.
  • the strain gauge 30 prevents the tendency of the winding wire to oscillate, for example in the case of mechanical wire tension compensation elements.
  • the braking function of the DC motor 20 changes into a drive function, which can occur in particular with a thin winding wire 25 running at high wire speed.
  • the actual values of the wire speed K1 and the wire acceleration K2 are derived in the control unit 40, as will be described in more detail in FIG. 3, from the amplified rotor position signal S2 from the commutation system, which is the direct current motor 20, whereby the rotational speeds of the direct current motor 20 and an incremental encoder 21 is arranged on the DC motor axis for measuring the wire length.
  • such a technologically induced wire retraction can be programmed by an existing or existing wire retraction force in the machine control 50 or in the wire tension preselection 52.
  • a wire tightening is brought about by the wire retraction, the wire length of the wire retraction being likewise programmable in the machine control 50.
  • a broken wire detection which is derived from the retraction function and the wire acceleration, is indicated as a fault by means of the illuminated display 13.
  • the winding machine for electrical coils has several, for example up to 32 winding stations, which are equipped with corresponding individually programmable wire tension regulators 10-1 ... 10-32 (Fig. 2A).
  • the wire tension controllers 10-1 ... 10-32 are connected to the machine control 50 connected, in addition to the setpoint programming, actual value transmission, tolerance range programming, for example in the case of wire stretching with alarm triggering, wire pull controller programming.
  • 50 statistical and operating data are recorded and possibly registered in the machine control, such as min / max wire pull per coil and motor and strain gauge operating data.
  • a digital parameter specification and digital control loops result in perfect reproducibility for a wide variety of winding processes.
  • the amplified rotor position signal S2 emitted by the motor controller 28 is fed to a counter C1, the counter reading of which derives correction signals K1, K2 for wire speed and wire acceleration.
  • the setpoint wire voltage signal S6 or S6 ' is compared with the digitized in an analog / digital converter AD2, with the amplified actual value wire voltage signal S5 supplied by strain gauges 30 in a comparator V1, and the difference signal S8 with a wire tension controller R1 supplied, the output signal S9 is corrected by the correction signals K1, K2.
  • This corrected signal S10 is compared with the actual-value torque signal S3 digitized in a further analog / digital converter AD1 in a corresponding comparator V2 and the resulting signal S11 is transferred to a torque controller R2, whose output signal S12 transmits it processes a pulse width modular PWM (pulse wide modular) into a manipulated variable signal S7.
  • the manipulated variable signal S7 is amplified in the motor control 28 and supplied to the direct current motor 20 as an energy supply E.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)

Claims (15)

  1. Dispositif de régulation de la tension d'un produit filiforme, de préférence d'un fil de bobinage (25), guidé d'une bobine de réserve vers une bobine d'un dispositif de bobinage, en particulier pour bobines électriques, constitué
    - d'un rouleau de rappel (13) avec un rouleau de pression ainsi qu'une roue de frein (22), laquelle est entraînée dans le sens d'avance du fil et le sens de retour du fil au moyen d'un moteur à courant continu (20) réglé,
    - d'un dispositif de mesure de force sans déplacement, placé entre la roue de frein (22) et le dispositif de bobinage, de préférence sous la forme d'une bande de mesure d'allongement (30), pour la fourniture d'un signal de tension de fil de valeur réelle (S5)
    - et d'un comparateur (V1), qui compare le signal de tension de fil de valeur réelle (S5) amplifié à un signal de tension de fil de valeur de consigne (S6, S6') et fournit un signal de régulation (S8) pour le moteur à courant continu (20),
    caractérisé
    en ce que le moteur à courant continu (20) réglé délivre un signal (S1) de la position du rotor à une commande de moteur (28), qui le transmet d'une part en tant que signal amplifié (S2) à un appareil de commande (40), auquel est envoyé en outre un signal de couple de rotation de valeur réelle (S3) et un signal de tension de fil de valeur de consigne (S6) de la commande de machine (50) ou à un signal de tension de fil de valeur de consigne (S6') de la présélection de la tension de fil (52),
    et en ce que dans l'appareil de commande (40) le signal de régulation (S8) parvient à un régulateur de traction de fil (R1), dont le signal de sortie (S9) est envoyé avec un signal de couple de rotation de valeur réelle (S3) à un régulateur de couple de rotation (R2), pour la dérivation d'un signal de grandeur de réglage (S7), qui est délivré à la commande de moteur (28) et, amplifié par celle-ci, en tant qu'apport d'énergie (E), au moteur à courant continu (20) en vue du réglage de la tension du fil sur la valeur de consigne.
  2. Dispositif selon la revendication 1, caractérisé en ce que le moteur à courant continu (20) réglé n'a pas de balais et comporte une régulation à quatre quadrants.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que pour la régulation du couple de rotation du moteur à courant continu (20), il est prévu un circuit de régulation de courant (20, S1, 28, S3, 40) numérique.
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que la régulation du couple de rotation est asservie à la régulation numérique de la traction du fil, le moteur à courant continu (20) avec le dispositif de mesure de force (30) sans déplacement étant un circuit de régulation (30, S4, 38, S5, 40, S7, 28, E, 20) fermé.
  5. Dispositif selon l'une des revendications 1 à 4, caractérisé en ce que pour les valeurs réelles de la vitesse du fil (K1) et de l'accélération du fil (K2), le système de commutation du moteur à courant continu (20) sans balais est prévu.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que pour la mesure des vitesses de rotation du moteur à courant continu (20) et pour la mesure de la longueur du fil sur l'axe du moteur à courant continu, il est prévu un transmetteur d'incrément (21).
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que dans le cas d'une force de friction du fil, supérieure à la tension de fil de valeur de consigne (S6) de la commande de machine (50) ou à la tension de fil de valeur de consigne (S6') de la sélection de la tension de fil (52), la fonction de freinage du moteur à courant continu (20) est une fonction d'entraînement.
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce qu'un rappel du fil, conditionné technologiquement, peut être programmé par une force de rappel du fil réglée dans la commande de machine (50) ou la sélection de tension de fil (52).
  9. Dispositif selon l'une des revendications 1 à 8, caractérisé en ce que pour la fixation de la longueur du fil du rappel de fil il est prévu une programmation dans la commande de machine (50).
  10. Dispositif selon l'une des revendications 1 à 9, caractérisé en ce que pour la fixation de la longueur du fil du rappel de fil il est prévu une programmation dans la commande de machine (50).
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce que dans le cas d'un rappel de fil avec accélération minimale du fil prédéterminée, il est possible de constater une rupture du fil et pour cela il est prévu une indication lumineuse (13).
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que les garnitures pour le rouleau de rappel (16), le rouleau de pression (17) et/ou la roue de frein (22) sont, suivant le type et l'épaisseur du fil, en feutre, matière plastique, céramique, métal, caoutchouc, Vulkolan et/ou en matériau électriquement antistatique.
  13. Procédé de commande du dispositif présentant les caractéristiques indiquées dans les revendications 1 à 12, caractérisé en ce que dans l'appareil de commande (40) le signal de position du rotor (S2) amplifié est envoyé à un compteur (C1), des signaux de correction (K1, K2) pour la vitesse du fil (K1) et l'accélération du fil (K2) étant dérivés de ses chiffres, en ce que le signal de tension de fil de valeur de consigne (S6 ou S6') est comparé (V1) au signal de tension de fil de valeur réelle (S5) numérisé (AD2), amplifié, fourni par le dispositif de mesure de force (30) et le signal de différence (S8) est envoyé au régulateur de traction de fil (R1), dont le signal de sortie (S9) est corrigé par les signaux de correction (K1, K2), en ce que ce signal corrigé (S10) est comparé (V2) au signal de couple de rotation de valeur réelle (S3) numérisé (AD1), et le signal résultant (S1) est envoyé au régulateur de couple de rotation (R2), dont le signal de sortie (S12) est traité par un modulateur de largeur d'impulsion (PWM) pour donner le signal de grandeur de réglage (S7).
  14. Procédé selon la revendication 13, caractérisé en ce que dans la commande de moteur (28), le signal de couple de rotation de valeur (S3) est dérivé de l'énergie (E) envoyée au moteur à courant continu (20).
  15. Procédé selon la revendication 13 ou 14, caractérisé en ce que la longueur du fil pour la bobine enroulée est mesurée par un transmetteur d'incrément (21) du moteur à courant continu (20) et par l'intermédiaire du signal de position de rotor (S2) amplifié, envoyé à l'appareil de commande (40), et le compteur (C1).
EP93200601A 1992-03-30 1993-03-03 Dispositif et procédé de régulation de la tension d'un matériau filiforme, en particulier d'un fil de bobinage pour bobines électriques Expired - Lifetime EP0564018B1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH1003/92 1992-03-30
CH100392 1992-03-30
CH376592 1992-12-09
CH3765/92 1992-12-09

Publications (3)

Publication Number Publication Date
EP0564018A2 EP0564018A2 (fr) 1993-10-06
EP0564018A3 EP0564018A3 (en) 1993-12-22
EP0564018B1 true EP0564018B1 (fr) 1996-06-05

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EP93200601A Expired - Lifetime EP0564018B1 (fr) 1992-03-30 1993-03-03 Dispositif et procédé de régulation de la tension d'un matériau filiforme, en particulier d'un fil de bobinage pour bobines électriques

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US (1) US5421534A (fr)
EP (1) EP0564018B1 (fr)
JP (1) JPH0616336A (fr)
DE (1) DE59302791D1 (fr)

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DE102014206251B3 (de) * 2014-04-02 2015-09-17 Meteor Ag Wickelvorrichtung und Verfahren zu deren Betrieb
JP6169557B2 (ja) * 2014-12-26 2017-07-26 ファナック株式会社 張力監視機能を有するワイヤ放電加工機
CN108292544B (zh) * 2015-09-22 2020-12-11 无限物理有限责任公司 线性介质处理系统和使用其进行生产的装置
US11878892B2 (en) 2015-09-22 2024-01-23 Infinity Physics, Llc Linear media handling system and devices produced using the same
EP3290370B1 (fr) * 2016-08-31 2019-01-30 Aumann Espelkamp GmbH Dispositif d'alimentation de fil
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CN110310821A (zh) * 2019-07-22 2019-10-08 成都玖锦科技有限公司 一种微型精密金丝线圈绕制装置
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US4420123A (en) * 1981-10-19 1983-12-13 The United States Of America As Represented By The Secretary Of The Army Force rate sensor assembly
US4520300A (en) * 1982-12-06 1985-05-28 Fradella Richard B Brushless ultra-efficient regenerative servomechanism
EP0216964A1 (fr) * 1985-08-27 1987-04-08 Hiroshi Kataoka Appareil de réglage de la tension de sortie et d'enroulement
US4644234A (en) * 1985-09-13 1987-02-17 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Four quadrant control circuit for a brushless three-phase d.c. motor
EP0365470B1 (fr) * 1988-10-17 1996-01-03 SIG Schweizerische Industrie-Gesellschaft Dispositif de raccordement de l'extrémité terminale d'une bande avec le début d'une autre bande
JP2875540B2 (ja) * 1988-11-04 1999-03-31 株式会社日立製作所 磁気テープ張力制御装置
DE3936558C2 (de) * 1989-10-31 1993-12-02 Siemens Ag Drahtzugregeleinrichtung für Wickelmaschinen
FR2655888A1 (fr) * 1989-12-20 1991-06-21 Prosys Devidoir a regulation de tension du fil pour alimenter une bobineuse a partir d'une nourrice.

Also Published As

Publication number Publication date
US5421534A (en) 1995-06-06
DE59302791D1 (de) 1996-07-11
JPH0616336A (ja) 1994-01-25
EP0564018A2 (fr) 1993-10-06
EP0564018A3 (en) 1993-12-22

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