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EP0062025A1 - Appareil pour enrouler des bandes redressées de tôle - Google Patents

Appareil pour enrouler des bandes redressées de tôle Download PDF

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Publication number
EP0062025A1
EP0062025A1 EP82890013A EP82890013A EP0062025A1 EP 0062025 A1 EP0062025 A1 EP 0062025A1 EP 82890013 A EP82890013 A EP 82890013A EP 82890013 A EP82890013 A EP 82890013A EP 0062025 A1 EP0062025 A1 EP 0062025A1
Authority
EP
European Patent Office
Prior art keywords
winding
strip
curvature
straightening
longitudinal
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.)
Granted
Application number
EP82890013A
Other languages
German (de)
English (en)
Other versions
EP0062025B1 (fr
Inventor
Hans Jörg Weinzinger
Rudolf Pichler
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.)
Voestalpine AG
Original Assignee
Voestalpine AG
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 Voestalpine AG filed Critical Voestalpine AG
Publication of EP0062025A1 publication Critical patent/EP0062025A1/fr
Application granted granted Critical
Publication of EP0062025B1 publication Critical patent/EP0062025B1/fr
Expired legal-status Critical Current

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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
    • B65H23/00—Registering, tensioning, smoothing or guiding webs
    • B65H23/04—Registering, tensioning, smoothing or guiding webs longitudinally
    • B65H23/34—Apparatus for taking-out curl from webs
    • 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
    • B21C47/02—Winding-up or coiling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/05—Stretching combined with rolling

Definitions

  • Sheet metal strips that are flat after a straightening process are subjected to a bending load when they are wound on a reel depending on the respective winding diameter, the material properties and the strip tension, which causes the zero line of the residual stresses of the strip from the center of the strip after the straightening process Center is shifted, which after unwinding of the tape results in a tape longitudinal curvature that requires a new straightening of the tape before further processing.
  • DE-PS 908 004 it is known (DE-PS 908 004) to arrange a bending roller or bending drum after the reel, around which the strip is bent in the opposite direction to the curvature during winding.
  • the invention is therefore based on the object of specifying a method for winding directional sheet metal strips, with the aid of which such a message of the metal sheets becomes unnecessary because after the sheet metal coils have been unwound, the zero line of the residual stresses of the strip coincides with the center of the strip.
  • the invention solves this problem in that the sheet metal strips are given a longitudinal curvature opposite to the winding curvature and decreasing with increasing winding diameter before winding. -Therefore, according to this measure, by pre-bending the tape to be wound up, the zero line after the straightening process remaining residual stresses of the strip are shifted from the center of the strip to such an extent that the bending occurring when the strip is wound up moves the zero line of these residual stresses back into the neutral strip zone, a flat strip is obtained after unwinding the sheet metal bundle, which is no longer subjected to a subsequent straightening process needs to be. Because of the smaller the curvature of the tape when the tape is wound up, the tape must of course be given a smaller longitudinal tape curvature with the larger diameter of the tape before winding to ensure that the tape runs out smoothly after the coil has been unwound.
  • the fibers running next to the band waves must be stretched to the length of the fibers of the shaft belly.
  • the length difference between the fibers in the corrugated area and in the non-corrugated area of the strip thus determines the lowest degree of stretch required for the flatness of a strip, with which the material properties experience the least change.
  • a stretch bending device has become known (AT-PS 358 900), in which the degree of stretch between the tensioning roller sets for the band to be straightened is controlled in accordance with the respective band ripple.
  • the changing degree of stretching requires a shift in the zero line of the remaining residual stresses of the strip, so that the associated longitudinal curvature of the strip must be corrected.
  • the straightening roller which is arranged downstream of the bending rollers to compensate for such curvatures, is set differently, with the aid of a control device, to which the actual value of the detectable strip transverse curvature is fed via an actual value transmitter.
  • the transverse curvature which is formed in a band under tension is dependent on the longitudinal curvature which forms in the case of a free spring back of the band, so that the longitudinal curvature can actually be corrected via the amplitude detection of the band transverse curvature.
  • the strip is to be given a longitudinal curvature opposite to the winding curvature before it is wound up on a reel
  • the known stretch bending straightening device compensates for any longitudinal curvatures that may occur by an additional bending process
  • this known stretch bending straightening device can be used to carry out the method according to the invention.
  • the known device In order to be able to impart a corresponding longitudinal curvature to the sheet metal coils to be wound up, the known device must be modified in that the control device with a computer-based computer program determining the transverse curvature of the strip depending on the desired value of the longitudinal strip curvature from the changing winding diameter taking into account the material properties and the strip tension Setpoint generator is connected.
  • the adjustment roller adjustment is made possible by correcting the respective setpoint / actual value difference controlled that the zero line of the residual stresses remaining from the straightening process is not moved out into the neutral band zone, but out of it so far that in order to shift the zero line of the residual stresses into the neutral zone, a bending of the strip in the longitudinal direction is required, as is the case during the subsequent winding of the Band inevitably occurs on the reel.
  • the dependence of this pre-bending on the winding diameter can be taken into account by the computer by specifying the respective winding diameter, for example via a corresponding measuring device, with the material properties of the strip and the strip tension also having to be observed, of course, since these variables also influence the strip curvature during winding . Since the mathematical relationships of these quantities are based only on simplifying models, a corresponding correction based on empirical values will usually be necessary, which can easily be taken into account by a suitable computer program.
  • the stretch bending straightening device consists of two tensioning roller sets 1 and 2, between which two bending rollers 3 and a subsequent straightening roller 4 are provided.
  • the tension to be applied between the tensioning roller sets 1 and 2 on the belt 5 is via the drives 6 and? of the tension roller sets 1 and 2 controlled, the entry and exit speed of the strip 5 being detected by measuring rollers 8 and being fed to an actual value transmitter 9 which derives the actual value for the degree of stretch of the strip from the speed difference.
  • This actual value of the degree of stretching is fed to the controller 10, which drives the 6th and 7 is controlled as a function of a target / actual value difference.
  • the setpoint for the degree of stretching can be specified as a constant value or, depending on the respective band ripple, can be limited to the necessary minimum, which makes the setpoint specification as a reference variable necessary.
  • an adjusting drive 11 is provided for the adjustment of the straightening roller 4, which is designed as a hydraulic cylinder in the exemplary embodiment.
  • the actuation of this actuating drive 11 can be controlled via a valve 12, which can be adjusted, for example, via a magnetic actuating device 13, specifically via a control device 14, which on the one hand connects to an actual value transmitter 15 downstream of the tensioning roller set 2 on the outlet side, and on the other hand, for the amplitudes of strip curvatures a computer 16 is connected as a setpoint.
  • the actual value transmitter 15 has two support rollers 17 for the belt 5, between which a plurality of electromagnets 18 arranged over the bandwidth are arranged. About these electromagnets 18 approximately perpendicular forces are exerted on the tape surface, the resulting sag between the two support rollers 17 determines the air gap between the tape 5 and the magnet 18, so that the different deflection of the excitation winding Band and thus the amplitude of the band waves can be determined.
  • the straightening roller 4 must accordingly be set so that the desired transverse curvature is displayed via the actual value transmitter 15.
  • This transverse curvature of the strip which is dependent on the longitudinal curvature, can be derived from the respective winding diameter given known material properties and a predetermined strip tension. This is carried out in the computer 16, to which the required data are predefined via an input 19 and which, from these predefined values in accordance with the defined program, specifies the respective desired value of the strip transverse curvature as a function of the continuously changing winding diameter of the reel of the control device 14.
  • the required straightening roller employment can thus be regulated from a target / actual value comparison.
  • the band 5 Since the band 5 is not flat after the straightening process, but has received a longitudinal curvature, the associated longitudinal curvature during winding of the band can cancel out the associated displacement of the zero line of the residual stresses of the strip, so that the zero line of the residual stresses coincides with the center of the strip.
  • the strip treated in such a manner therefore runs out flat after it has been unwound and does not need to be adjusted.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)
  • Advancing Webs (AREA)
EP82890013A 1981-03-26 1982-01-27 Appareil pour enrouler des bandes redressées de tôle Expired EP0062025B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT0140481A AT368044B (de) 1981-03-26 1981-03-26 Verfahren und vorrichtung zum aufwickeln gerichte-ter blechbaender
AT1404/81 1981-03-26

Publications (2)

Publication Number Publication Date
EP0062025A1 true EP0062025A1 (fr) 1982-10-06
EP0062025B1 EP0062025B1 (fr) 1984-11-28

Family

ID=3513162

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82890013A Expired EP0062025B1 (fr) 1981-03-26 1982-01-27 Appareil pour enrouler des bandes redressées de tôle

Country Status (6)

Country Link
US (1) US4457149A (fr)
EP (1) EP0062025B1 (fr)
JP (1) JPS57170345A (fr)
AT (1) AT368044B (fr)
DD (1) DD201857A5 (fr)
DE (1) DE3261314D1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567049A1 (fr) * 1984-07-06 1986-01-10 Mitsubishi Heavy Ind Ltd Procede de correction des deformations d'un produit plat lamine en bande
FR2586595A1 (fr) * 1985-09-05 1987-03-06 Maubeuge Fer Dispositif de planage d'une bande metallique sous traction.
EP0341970A2 (fr) * 1988-05-10 1989-11-15 Kobayashi Engineering Works, Ltd. Appareil pour supprimer la torsion dans les bandes
FR2729373A1 (fr) * 1995-01-16 1996-07-19 Trefimetaux Conditionnement en fut de fil d'alliage de cuivre pre-dresse
EP0732160A3 (fr) * 1995-03-14 1997-08-20 Bwg Bergwerk Walzwerk Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre
CN109967558A (zh) * 2019-03-19 2019-07-05 浙江申吉钛业股份有限公司 具有改进钛合金板材矫直精度的带前端卷起装置的矫直方法

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3636707A1 (de) * 1986-10-28 1988-05-19 Bwg Bergwerk Walzwerk Vorrichtung zum streckbiegerichten von metallbaendern
DE4323385C1 (de) * 1993-07-13 1995-01-19 Bwg Bergwerk Walzwerk Verfahren zum Beseitigen von Querkrümmungen in Metallbändern, insbesondere dünnen Metallbändern bis 2,0 mm Dicke
FR2790982B1 (fr) * 1999-03-15 2001-05-04 Inst Francais Du Petrole Methode et dispositif pour controler la deformation d'une conduite metallique deroulee
AU757340B2 (en) 1999-04-02 2003-02-20 Hunter Douglas Industries Bv Method and arrangement for automatic bow adjustment
DE10124836C5 (de) * 2001-05-22 2007-07-19 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh Verfahren zum Beseitigen von Querkrümmungen in einem Metallband
US7441318B2 (en) * 2005-02-09 2008-10-28 The Goodyear Tire & Rubber Co Method for detecting exposed metal cords in an elastomeric strip
EP3437749A1 (fr) * 2017-08-04 2019-02-06 Primetals Technologies France SAS Planeuse multi-rouleaux de bande métallique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1452834A1 (de) * 1964-08-17 1969-10-30 Polakowski Natalis Horace Vorrichtung zum Abflachen und Einrollen von Metallstreifen
DE2134405A1 (de) * 1971-07-09 1973-01-18 Bwg Bergwerk Walzwerk Verfahren und vorrichtung zur verformung von blechbaendern in bandstrassen
US3806574A (en) * 1972-05-03 1974-04-23 H Arvidson Flat photographic sheets produced by forward and reverse rewinding of photographic material
EP0012738A1 (fr) * 1978-12-12 1980-06-25 VOEST-ALPINE Aktiengesellschaft Dispositif pour commander une installation de dressage par étirage

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE908004C (de) * 1941-12-06 1954-04-01 Hohenlimburger Walzwerke Ag Vorrichtung zum Zurichten der Aussenenden von Metallwickeln oder -ringen
GB1147986A (en) * 1965-07-09 1969-04-10 United Eng Foundry Co Strip deflector means and control
FR92826E (fr) * 1965-10-18 1969-01-03 Alcan Aluminium France Perfectionnements a l'enroulement de bandes métalliques a la sortie d'une ligne de refendage.
US3559431A (en) * 1968-02-15 1971-02-02 Bwg Bergwerk Walzwerk Apparatus for stretching continuous bands
BE790497A (fr) * 1972-01-28 1973-02-15 Bwg Bergwerk Walzwerk Procede et dispositif pour la regulation de la planeite d'une bande metallique passant par une machine a dresser
US3839888A (en) * 1972-11-06 1974-10-08 Wean United Inc Tension levelling of strip
DE2350503B1 (de) * 1973-10-08 1975-01-23 Bwg Bergwerk Walzwerk Verfahren und Vorrichtung zum Entzundern und Planieren von Blechbaendern
DE2439260B1 (de) * 1974-08-16 1975-12-18 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Spannvorrichtung für kontinuierlich durchlaufende Bänder
DE2605723C2 (de) * 1976-02-13 1982-09-09 Bwg Bergwerk- Und Walzwerk-Maschinenbau Gmbh, 4100 Duisburg Steuerungsvorrichtung an einem zwischen Spannrollensätzen angeordneten Kaltnachwalzgerüst in einer kontinuierlich laufenden Band-Prozeß-Linie
US4339934A (en) * 1980-11-28 1982-07-20 Reynolds Metals Company Strip shape control

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1452834A1 (de) * 1964-08-17 1969-10-30 Polakowski Natalis Horace Vorrichtung zum Abflachen und Einrollen von Metallstreifen
DE2134405A1 (de) * 1971-07-09 1973-01-18 Bwg Bergwerk Walzwerk Verfahren und vorrichtung zur verformung von blechbaendern in bandstrassen
US3806574A (en) * 1972-05-03 1974-04-23 H Arvidson Flat photographic sheets produced by forward and reverse rewinding of photographic material
EP0012738A1 (fr) * 1978-12-12 1980-06-25 VOEST-ALPINE Aktiengesellschaft Dispositif pour commander une installation de dressage par étirage

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
WERKSTATTSTECHNIK, Band 60, Nr. 1, Januar 1970, Seite 44, Berlin, DE. *

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2567049A1 (fr) * 1984-07-06 1986-01-10 Mitsubishi Heavy Ind Ltd Procede de correction des deformations d'un produit plat lamine en bande
FR2586595A1 (fr) * 1985-09-05 1987-03-06 Maubeuge Fer Dispositif de planage d'une bande metallique sous traction.
EP0225198A1 (fr) * 1985-09-05 1987-06-10 Fabrique De Fer De Maubeuge Dispositif de planage d'une bande métallique sous traction
EP0341970A2 (fr) * 1988-05-10 1989-11-15 Kobayashi Engineering Works, Ltd. Appareil pour supprimer la torsion dans les bandes
EP0341970A3 (fr) * 1988-05-10 1991-02-06 Kobayashi Engineering Works, Ltd. Appareil pour supprimer la torsion dans les bandes
FR2729373A1 (fr) * 1995-01-16 1996-07-19 Trefimetaux Conditionnement en fut de fil d'alliage de cuivre pre-dresse
WO1996022166A1 (fr) * 1995-01-16 1996-07-25 Trefimetaux Conditionnement en fut de fil d'alliage de cuivre pre-dresse
CN1080606C (zh) * 1995-01-16 2002-03-13 特雷菲米陶克斯公司 将预拉直铜合金线材封装入桶中的方法
EP0732160A3 (fr) * 1995-03-14 1997-08-20 Bwg Bergwerk Walzwerk Procédé pour le redressement en continu des bandes métalliques minces, en particulier des bandes en aluminium et en acier inoxydable avec une épaisseur de 0,1 mm à 0,5 mm et installation de dressage pour sa mise en oeuvre
CN109967558A (zh) * 2019-03-19 2019-07-05 浙江申吉钛业股份有限公司 具有改进钛合金板材矫直精度的带前端卷起装置的矫直方法

Also Published As

Publication number Publication date
AT368044B (de) 1982-08-25
DD201857A5 (de) 1983-08-17
JPS57170345A (en) 1982-10-20
US4457149A (en) 1984-07-03
EP0062025B1 (fr) 1984-11-28
ATA140481A (de) 1982-01-15
DE3261314D1 (en) 1985-01-10

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