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EP1670601B1 - Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs - Google Patents

Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs Download PDF

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Publication number
EP1670601B1
EP1670601B1 EP04765897A EP04765897A EP1670601B1 EP 1670601 B1 EP1670601 B1 EP 1670601B1 EP 04765897 A EP04765897 A EP 04765897A EP 04765897 A EP04765897 A EP 04765897A EP 1670601 B1 EP1670601 B1 EP 1670601B1
Authority
EP
European Patent Office
Prior art keywords
strip
displacement
tension
phase displacement
mechanically
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
EP04765897A
Other languages
German (de)
English (en)
Other versions
EP1670601A1 (fr
Inventor
Norbert Umlauf
Frank Jurisch
Jürgen BEHRINGER
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.)
Individual
Original Assignee
Individual
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Filing date
Publication date
Priority claimed from DE102004030581A external-priority patent/DE102004030581A1/de
Application filed by Individual filed Critical Individual
Publication of EP1670601A1 publication Critical patent/EP1670601A1/fr
Application granted granted Critical
Publication of EP1670601B1 publication Critical patent/EP1670601B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/003—Regulation of tension or speed; Braking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/345—Feeding or guiding devices not specially adapted to a particular type of apparatus for monitoring the tension or advance of the material
    • B21C47/3458—Endlessly revolving chain systems
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/34—Feeding or guiding devices not specially adapted to a particular type of apparatus
    • B21C47/3466—Feeding or guiding devices not specially adapted to a particular type of apparatus by using specific means
    • B21C47/3483—Magnetic field

Definitions

  • the technical field of the invention relates to a system for the contactless application of a strip tension in electrically conductive metal strips according to the preamble of claim 1.
  • Such a plant is from the WO / 27544A known.
  • the rotary eddy-current linear drive was designed as a brake and / or scaffold, optionally combined with a strip conveyor control for metal strip production lines, which allows fundamental conceptual changes. It is used wherever previously the tension rollers, drivers, flat brakes, the mechanical linear drive and vacuum brakes are used. In these systems, the bands are each introduced by means of contact forces on the strip surface in the band.
  • the system is suitable for all electrically conductive metals and their alloys, in particular for aluminum and copper, but also, for example, for electrically conductive powder metallurgy materials, sintered materials and their alloys.
  • the entrainment effect is achieved by a magnetic field traveling relative to the strip. This magnetic field causes the strip tension via the eddy current excitation, at the same time the metal strip is repelled by this magnetic field.
  • the quality requirements for the product metal strip have increased significantly in recent years.
  • the rotary eddy current linear drive meets these requirements; In addition, quality improvements can be achieved.
  • the operation of the circulating eddy current linear drive is particularly valuable for the highest demands on surface quality, to avoid multiple bends of the bands with longitudinal tension, for special strip flatness with minimization of Wickelbogmaschineen and discontinuous process lines due to the easy handling. It becomes possible for the first time to transport the belts through the process lines without touching the two sides of the belt after the finishing process.
  • the required strip tension is applied by mechanical brakes, the friction surface representing the belt surface. These are cheeks coated with textiles (so-called carpet brake), or the contact pressure is generated by inflating a (fire hose) hose.
  • carpet brake the friction surface representing the belt surface.
  • the contact pressure is generated by inflating a (fire hose) hose.
  • the strip tension is built up by looping a roll.
  • the tensile structure can only be changed per roll depending on the preference, the wrap angle and the coefficient of friction between the belt and roller coating.
  • Non-contact retraction devices are known using eddy current forces when moving a tape in a magnetic field.
  • the hovering of the belt is made possible by the lifting force F H acting in the direction of the surface normal of the belt.
  • the band brake device consists of two opposing devices 1 and 2, in whose gap a magnetic alternating pole magnetic field 3 is generated. In this gap, the strip material 4 moves at the working speed v A.
  • the strip tension ⁇ B F B / A B (where A B is the band cross-sectional area d * b B ) is set by the differential velocity v between the belt and the magnetic field, thereby forming a traveling wave field 3a.
  • the braking or retraction force results from the geometry (thickness d and width b B ), the electrical conductivity ⁇ of the band, the active length I M of the magnetic field (coverage) and the air gap induction peak value Bs, which is dependent on the gap width ⁇ .
  • the vertical force F v for compensating the dead weight of the belt is derived from the braking force F B by a displacement ⁇ of the upper to the lower field shaft.
  • a Bandzugmess issued 5 controls the relative speed on the influence of the traveling wave velocity and possibly their direction.
  • Distance sensors for detecting the band position in the gap control the phase angle between the upper and lower traveling wave.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Control Of Linear Motors (AREA)
  • Linear Motors (AREA)
  • Control Of Vehicles With Linear Motors And Vehicles That Are Magnetically Levitated (AREA)

Abstract

L'invention concerne une installation servant à appliquer, sans contact, une traction à un feuillard, installation dans laquelle la force de sustentation produite par des champs magnétiques en mouvement (3) est produite à partir de la force de retour. L'objectif de l'invention est d'éviter de manière fiable des dégradations superficielles du feuillard (4) et d'obtenir un rendement optimisé. A cet effet, un déphasage est réalisé entre deux champs d'ondes progressives magnétiques supérieur et inférieur synchrones et est régulé de façon à permettre l'obtention de la sustentation centrale du feuillard (4) ou d'une position de feuillard voulue.

Claims (10)

  1. Installation pour appliquer sans contact une traction à une bande métallique, dans laquelle la force de lévitation ou de sustentation générée au moyen de champs magnétiques mobiles résulte de la force de rappel, caractérisée en ce qu'entre les deux champs d'ondes progressives magnétiques (3a) supérieur et inférieur à mouvement synchrone, un déphasage est introduit et régulé de manière à obtenir une lévitation ou sustentation centrale de la bande ou une position de bande souhaitée.
  2. Installation selon la revendication 1, caractérisée en ce que les champs d'ondes progressives sont générés par des systèmes (1, 2) comportant des barres magnétiques (6, 7) positionnées à pôles alternés transversalement à la direction de défilement de la bande.
  3. Installation selon la revendication 2, caractérisée par deux systèmes rotatifs (1, 2) entraînés mécaniquement disposés respectivement en haut et en bas.
  4. Installation selon l'une des revendications 1 à 3, caractérisée en ce que les barres magnétiques (7) sont équipées d'aimants permanents (6).
  5. Installation selon l'une des revendications 1 à 3, caractérisée en ce que des systèmes de bobines (22, 23) destinés à être excités électriquement sont disposés sur les barres.
  6. Installation selon l'une des revendications 1 à 5, caractérisée en ce que le déphasage des ondes progressives est généré par modification mécanique en sens contraire des longueurs des deux parties d'une chaîne d'entraînement ne se trouvant pas en prise ou d'autres éléments de transmission sans glissement (fig. 5).
  7. Installation selon l'une des revendications 1 à 5, caractérisée en ce que l'entraînement est réalisé par deux moteurs (10, 11) qui sont alimentés par deux variateurs de vitesse synchronisés et le déphasage des ondes progressives est réalisé électriquement par déphasage des signaux de commande (fig. 1).
  8. Installation selon l'une des revendications 1 à 5, caractérisée en ce que le déphasage est réalisé mécaniquement par décalage géométrique (18) d'un des deux systèmes de chaîne (8, 9) portant les barres magnétiques (fig. 6 et 7).
  9. Installation selon la revendication 8, caractérisée par un réducteur pour cage à pignons (17) ou un différentiel pour cage à pignons (15) pour générer le décalage géométrique.
  10. Installation selon l'une des revendications 1 à 5, caractérisée en ce que dans le cas de stators triphasés (19, 20) stationnaires se faisant face, le déphasage est réalisé mécaniquement par décalage géométrique l'un par rapport à l'autre des deux stators (19, 20) à excitation électrique polyphasée (fig. 8 et 9).
EP04765897A 2003-10-08 2004-10-08 Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs Expired - Lifetime EP1670601B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10347260 2003-10-08
DE102004030581A DE102004030581A1 (de) 2003-10-08 2004-06-25 Anlage zum berührungslosen Aufbringen des Bandzuges bei elektrisch leitfähigen Metallbändern
PCT/EP2004/011288 WO2005035158A1 (fr) 2003-10-08 2004-10-08 Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs

Publications (2)

Publication Number Publication Date
EP1670601A1 EP1670601A1 (fr) 2006-06-21
EP1670601B1 true EP1670601B1 (fr) 2008-11-26

Family

ID=34436314

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04765897A Expired - Lifetime EP1670601B1 (fr) 2003-10-08 2004-10-08 Installation pour appliquer, sans contact, une traction a des feuillards metalliques electroconducteurs

Country Status (2)

Country Link
EP (1) EP1670601B1 (fr)
WO (1) WO2005035158A1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102006054385B4 (de) * 2006-11-17 2014-11-13 Sms Siemag Aktiengesellschaft Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts
DE102006054383B4 (de) * 2006-11-17 2014-10-30 Sms Siemag Aktiengesellschaft Verfahren, Vorrichtung und deren Verwendung zum Ziehen oder Bremsen eines metallischen Guts
DE102008029326A1 (de) 2008-06-20 2009-12-24 Sms Siemag Aktiengesellschaft Verfahren und Vorrichtung zum Streckrichten eines Metallbandes
US9242284B2 (en) 2013-03-15 2016-01-26 Norbert Umlauf Method and apparatus for straightening metal bands
CN105936447B (zh) * 2016-06-20 2018-08-31 武汉纺织大学 一种磁力驱动的直线往复导纱装置及其使用方法
DE102019131761A1 (de) * 2019-11-25 2021-05-27 Norbert Umlauf Walzlinie

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2731212A (en) * 1953-02-13 1956-01-17 Richard S Baker Polyphase electromagnet strip guiding and tension device
DE19524289C2 (de) * 1995-07-06 1999-07-15 Thyssen Magnettechnik Gmbh Vorrichtung zum Bremsen von elektrisch leitfähigen Bändern
EP1350576B1 (fr) * 1998-11-11 2005-04-27 Norbert Umlauf Système d'entraínement utilisé dans des dispositifs pour le freinage ou la traction de feuillards metalliques

Also Published As

Publication number Publication date
WO2005035158A1 (fr) 2005-04-21
EP1670601A1 (fr) 2006-06-21

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