EP0062025B1 - 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
EP0062025B1
EP0062025B1 EP82890013A EP82890013A EP0062025B1 EP 0062025 B1 EP0062025 B1 EP 0062025B1 EP 82890013 A EP82890013 A EP 82890013A EP 82890013 A EP82890013 A EP 82890013A EP 0062025 B1 EP0062025 B1 EP 0062025B1
Authority
EP
European Patent Office
Prior art keywords
strip
winding
curvature
rollers
bending
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
Application number
EP82890013A
Other languages
German (de)
English (en)
Other versions
EP0062025A1 (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

  • the invention relates to a system for winding aligned sheet metal strips into coils with a stretch-bending device arranged upstream of a take-up reel, which consists of two sets of tensioning rollers for the strip to be straightened and at least two straightening rolls arranged downstream of the tensioning roller sets, and with a control device which is connected to one is connected to the outlet-side tensioning roller set downstream of the actual value transmitter for the amplitudes of strip curvatures and controls an actuator for straightening roller adjustment.
  • Sheet metal strips which 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 a shift of the zero line of the internal stresses of the strip after the straightening process, which causes results in a longitudinal curvature after unwinding the tape and requires a new straightening before further processing.
  • this cannot take into account the winding curvature that changes with the winding radius.
  • the fibers running next to the band waves have to be stretched to the length of the fibers of the shaft belly.
  • the difference in length 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.
  • the degree of stretch between two tensioning roller sets can be controlled according to the respective band ripple (AT-B-358 900).
  • 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 via an actuator via a control device, to which the actual value of the detectable strip transverse curvatures is fed via an actual value transmitter. Since the transverse curvature which is formed in a band under tension is dependent on the longitudinal curvature which arises when the band is springing back freely, the longitudinal curvature can be corrected by detecting the amplitude of the transverse band curvature. However, this adjustment results in a flat band, which experiences a new shift in the zero line of the residual stresses during winding.
  • the invention is therefore based on the object of avoiding news of coiled, directed sheet metal strips without having to accept longitudinal curvatures when unwinding the sheet metal strips.
  • the invention solves the charge in that the control device is operatively connected to an additional computer as a setpoint generator, which takes into account longitudinal curvatures from the changing winding diameter, taking into account, to compensate for the winding curvatures that occur on the winding reel when winding the tape the material properties and the strip tension as determined by the program and outputs the transverse curvatures of the strip associated with these opposing longitudinal curvatures as a setpoint.
  • a setpoint generator which takes into account longitudinal curvatures from the changing winding diameter, taking into account, to compensate for the winding curvatures that occur on the winding reel when winding the tape the material properties and the strip tension as determined by the program and outputs the transverse curvatures of the strip associated with these opposing longitudinal curvatures as a setpoint.
  • the stretch bending device consists of two sets of tensioning rollers 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 controlled via the drives 6 and 7 of the tensioning roller sets 1 and 2, the inlet and outlet speed of the belt 5 being detected via measuring rollers 8 and being fed to an actual value transmitter 9, which comes from the Speed difference derives the actual value for the degree of stretch of the strip.
  • This actual value of the degree of stretching is fed to the controller 10, which controls the drives 6 and 7 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 zero line of the residual stresses of the strip cannot be shifted out of the neutral strip zone when the aligned sheet metal strip 5 is wound on a subsequent winding reel due to the associated bending of the strip
  • the zero line of the residual stresses must be reduced by a corresponding amount in before the strip is wound up Be shifted in the opposite direction to the neutral band zone by giving the band a longitudinal curvature in the opposite direction to the winding curvature, specifically by means of the straightening roller 4. Since the longitudinal curvature of a band under tension cannot be detected, but the longitudinal curvature can result in a transverse curvature the longitudinal curvature occurring when the strip springs back freely can only be detected via the transverse curvature.
  • 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 tape 5 Since the tape 5 is not flat after the straightening process, but has received a longitudinal curvature, can be obtained by the opposite longitudinal curvature, the associated displacement of the zero line of the residual stresses of the tape can be canceled by the opposite longitudinal curvature when winding the tape Zero line of the residual stresses coincides with the middle of the band.
  • the strip treated in such a manner therefore runs out flat after it has been unwound and does not need to be adjusted.

Claims (1)

  1. Installation pour l'enroulement de bandes de tôles dressées (5) en bobines, comportant un dispositif d'étirage et de flexion placé avant un bobinoir, qui se compose de deux jeux (1, 2) de rouleaux tendeurs pour la bande (5) à dresser et d'un rouleau dresseur (4) faisant suite à au moins deux rouleaux de flexion (3), entre les jeux (1, 2) de rouleaux tendeurs, ainsi qu'un régulateur (14), qui est relié à un transmetteur (15) de valeur instantanée de l'amplitude des courbures transversales de la bande, placé à la suite du jeu (2) de rouleaux tendeurs du côté de sortie, et qui commande un mécanisme (11) de réglage final pour le réglage du rouleau dresseur, caractérisée par le fait que le régulateur (14) est relié fonctionnellement à un calculateur supplémentaire (16) servant de transmetteur de valeur de consigne et qui, pour compenser les courbures d'enroulement qui se produisent sur le bobinoir, détermine, selon un programme, d'après le diamètre d'enroulement qui varie, compte tenu des propriétés de la matière et de la traction de la bande, des courbures longitudinales en sens inverse et donne à la sortie, comme valeur de consigne, les courbures transversales de la bande (5) correspondant à ces courbures longitudinales de sens inverse.
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
AT1404/81 1981-03-26
AT0140481A AT368044B (de) 1981-03-26 1981-03-26 Verfahren und vorrichtung zum aufwickeln gerichte-ter blechbaender

Publications (2)

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

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6120621A (ja) * 1984-07-06 1986-01-29 Mitsubishi Heavy Ind Ltd ストリツプの形状矯正方法
FR2586595B1 (fr) * 1985-09-05 1989-08-18 Maubeuge Fer Dispositif de planage d'une bande metallique sous traction.
DE3636707A1 (de) * 1986-10-28 1988-05-19 Bwg Bergwerk Walzwerk Vorrichtung zum streckbiegerichten von metallbaendern
JPH0688710B2 (ja) * 1988-05-10 1994-11-09 株式会社小林製作所 シートカール矯正装置
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
FR2729373A1 (fr) * 1995-01-16 1996-07-19 Trefimetaux Conditionnement en fut de fil d'alliage de cuivre pre-dresse
DE19509067A1 (de) * 1995-03-14 1996-09-19 Bwg Bergwerk Walzwerk Verfahren zum kontinuierlichen Richten von dünnen Metallbändern, insbesondere von Aluminium- und Edelstahl-Bändern mit Banddicken von 0,1 mm bis 0,5 mm, und Richtanlage zur Durchführung des Verfahrens
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
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

Family Cites Families (14)

* 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
BE668383A (fr) * 1964-08-17
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
AT314453B (de) * 1971-07-09 1974-04-10 Bwg Bergwerk Und Walzwek Masch Verfahren und Vorrichtung zum Reduzieren von Blechbändern in Bandstraßen
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
US3806574A (en) * 1972-05-03 1974-04-23 H Arvidson Flat photographic sheets produced by forward and reverse rewinding of photographic material
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
AT358900B (de) * 1978-12-12 1980-10-10 Voest Ag Anordnung zum steuern einer streckbiegericht- anlage
US4339934A (en) * 1980-11-28 1982-07-20 Reynolds Metals Company Strip shape control

Also Published As

Publication number Publication date
AT368044B (de) 1982-08-25
EP0062025A1 (fr) 1982-10-06
DE3261314D1 (en) 1985-01-10
DD201857A5 (de) 1983-08-17
US4457149A (en) 1984-07-03
JPS57170345A (en) 1982-10-20
ATA140481A (de) 1982-01-15

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