EP0809547A1 - Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible - Google Patents

Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible

Info

Publication number
EP0809547A1
EP0809547A1 EP96901796A EP96901796A EP0809547A1 EP 0809547 A1 EP0809547 A1 EP 0809547A1 EP 96901796 A EP96901796 A EP 96901796A EP 96901796 A EP96901796 A EP 96901796A EP 0809547 A1 EP0809547 A1 EP 0809547A1
Authority
EP
European Patent Office
Prior art keywords
strip
tension
rolling
rolling force
roll
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
EP96901796A
Other languages
German (de)
English (en)
Other versions
EP0809547B1 (fr
Inventor
Bernd Berger
Franz BRÜGGEN
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.)
Sundwig GmbH
Original Assignee
Sundwiger Eisenhuette Maschinenfabrik Grah and Co
Sundwiger Eisenhuette Maschinenfabrik GmbH and Co
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 Sundwiger Eisenhuette Maschinenfabrik Grah and Co, Sundwiger Eisenhuette Maschinenfabrik GmbH and Co filed Critical Sundwiger Eisenhuette Maschinenfabrik Grah and Co
Priority to DE29623757U priority Critical patent/DE29623757U1/de
Publication of EP0809547A1 publication Critical patent/EP0809547A1/fr
Application granted granted Critical
Publication of EP0809547B1 publication Critical patent/EP0809547B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/72—Rear end control; Front end control
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/16—Control of thickness, width, diameter or other transverse dimensions
    • B21B37/24—Automatic variation of thickness according to a predetermined program
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
    • B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/12—End of product

Definitions

  • a disadvantage of this method is that disturbances can occur when the strip start is pushed into the roll gap. So it is possible that the beginning of the band buckles during the pushing-in process and is therefore not rolled on. It is also possible for the rolled strip to bend up or down when leaving the roll gap, similar to a ski tip, and then to be driven into the guides of the roll stand. In addition, the rollers may be so badly damaged during the insertion process that they have to be replaced. Finally, it is also disadvantageous that in the case of small strip thicknesses and large rolling forces, the prestressed rollers collide when the strip end runs out of the roll gap and can be damaged in the process.
  • the tape ends are not on their in another method rolled out the entire length, but stopped immediately before reaching the roll gap. Accordingly, there remains an unwrought strip piece with the thickness of the starting material, which, however, is short compared to the strip ends of the first known method.
  • the strip end containing the kink from the clamping slot is cut off, for example by means of cropping shears.
  • a disadvantage of this method is the large loss length, which is composed of the non-rolled strip at each strip end, which corresponds to the distance between cropping shear and roll gap, and the ends cut off after each roll pass.
  • Another disadvantage is that the cut pieces of tape must be disposed of with each roll pass.
  • the invention has for its object to provide a method and an apparatus for rolling out the ends of a wound strip in a reversing mill, in which the loss lengths at the strip ends are low.
  • the method should also be able to be carried out with the least possible outlay on equipment.
  • This object is achieved in a method for rolling out the ends of a wound strip in a reversing rolling mill with winding reels arranged on its two sides by the following features:
  • the invention further relates to a device for performing this method, consisting of a reversing rolling mill with winding reels arranged on both sides and a control device, the actuators on the winding reels for the strip tension and on the rolling mill for the rolling force are assigned, the control device in such a way Depending on the location of the start or end of the strip controls that at the beginning of each roll pass the respective strip start is inserted into the roll gap without the strip on the inlet side and without rolling force, that after the introduction of the respective strip start the rolling force is gradually increased and that at the end of each Roll pass when the strip end is still connected to the decoiler, the strip tension on the inlet side is reduced to 0, the strip end completely running through the roll gap without tension and thereby reducing the thickness.
  • a device for performing this method consisting of a reversing rolling mill with winding reels arranged on both sides and a control device, the actuators on the winding reels for the strip tension and on the rolling mill for the rolling force are assigned, the control device in
  • the strip in the roll gap is thus reduced in thickness at the end of each roll pass.
  • this straight end of the strip forming the beginning of the strip is not reduced in thickness over its entire length, like the following strip, because the beginning of the strip is inserted into the open roll gap and the rolling force is only gradually increased. So there is a band beginning with a ra pen-shaped cross section. The dimension of this ramp-shaped cross-section is not preserved, however, because at the end of the roll pass it runs completely through the rolling mill and the thickness is reduced. The result is a tape with comparatively short, non-dimensionally accurate tape ends that are cut off.
  • the invention furthermore ensures that the introduction of the strip starts into the clamping slot of the winding reels, each of which acts as a reel, because the strip starts are always straight due to the complete passage of the rolling mill in the previous rolling pass. Elaborate straightening roles are therefore not required.
  • the increase in the strip tension on the inlet and outlet sides to maximum strip tension only takes place when the strip start is connected to the reel.
  • the maximum belt tension should only be reached when at least 1 to 2 turns are wound on the take-up reel.
  • the rolling force can be adjusted so that it is reduced at the end of each roll pass so that the rolls do not collide when the end of the strip leaves the roll gap. Furthermore, a maximum limit value should be specified for the rolling force at the end of each roll pass.
  • the device for rolling out the ends of a wound strip B consists of a reversing roller mill with lower roller 1 and upper roller 2, two winding reels 3, 4, pairs of driving rollers 5a, 5b, 6a, 6b, stationary guide tables 7 immediately upstream of the rolling mill 1, 2 on both sides , 8 and between the winding reels 3, 4 and the drive roller pairs 5a, 5b, 6a, 6b, pivotable transfer flaps 9, 10 arranged as well as a control device with actuators for the rolling mill 1, 2 and the reel 3, 4 and with sensors in the form of light barriers . Of the control device with the actuators and the sensors, only the light barriers 11, 12 are shown, which are arranged on both sides of the rolling mill 1, 2 above the control tables 7, 8. With such a device, the method according to the invention is carried out as follows:
  • the strip start A of the strip B wound on the take-up reel 3 is driven by the roller mill 1, 2 by means of the drive roller pair 5a, 5b transported.
  • the roll gap S is closed and a minimal rolling force is applied which is sufficient to enable rolling on without a strip tension on the outlet side.
  • the start of the tape A is then gripped by the pair of drive rollers 6a, 6b and inserted into the clamping slot 4 * of the take-up reel 4 via the pivoted transfer flap 10.
  • the rolling force can be increased gradually. Simultaneously with the increase in the rolling force, the inlet-side strip tension can be increased to stabilize the rolling process.
  • the extent to which the rolling force can be increased is determined by the clamping of the beginning of the strip A on the take-up reel 4.
  • the full strip tension can only be applied after 1 or 2 turns of the strip on the take-up reel 4.
  • the strip tension on the inlet side can also be increased, so that after 1 to 2 turns on the take-up reel, strip B is rolled with the desired rolling force or strip thickness with full strip tension on the inlet and outlet sides. After the target strip thickness has been reached, it is possible to switch from rolling force control to strip thickness control.
  • the strip tension on the inlet side is reduced to 0.
  • the strip end E then runs into the closed roll gap S without a strip tension on the inlet side and is reduced in thickness here, so that it has the desired strip thickness after leaving the roll gap S.
  • the end E bent in the clamping slot is straightened.
  • the straightened strip end E now forming the beginning of the strip is inserted into the opened roll gap S and transported to the outlet side.
  • the roll gap S is closed and the strip is rolled as in the first roll pass. Since the strip end forming the start of strip A in the first roll pass was inserted into the rolling mill with the roll gap open, it has a ramp-shaped cross section. Since it passes through the closed roll gap S in the second pass, it is reduced in thickness and the kink from the clamping slot 4 is straightened. Since the end of the strip is thicker than the rest of the strip, the rolling force increases when the end of the strip passes through the rolling mill 1, 2.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Winding Of Webs (AREA)
  • Control Of Metal Rolling (AREA)

Abstract

L'invention concerne un procédé et un dispositif pour le laminage des extrémités d'une bande enroulée (B) dans un laminoir réversible (1, 2) comportant des bobineuses (3, 4) disposées des deux côtés. L'invention a pour but de réduire les pertes de longueurs, non conformes aux dimensions prescrites, aux extrémités des bandes, tout en n'ayant recours qu'à un minimum de moyens techniques à mettre en oeuvre. Ce but est atteint grâce au fait qu'à chaque passe de laminage, chaque début de bande (A) est introduit dans l'écartement (S) des cylindres, sans tension de la bande, ni effort de laminage côté entrée, et que l'effort de laminage est ensuite progressivement accru jusqu'à obtention de la valeur de consigne, et que la tension de la bande côté sortie est appliquée lorsque le début (A) de la bande est raccordé à la bobineuse (4). A la fin de chaque passe de laminage, la tension de la bande est annulée, l'extrémité (E) de la bande traversant complètement l'écartement des cylindres sans être soumise à une quelconque tension et se trouvant ainsi réduite en épaisseur.
EP96901796A 1995-02-14 1996-02-09 Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible Expired - Lifetime EP0809547B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29623757U DE29623757U1 (de) 1995-02-14 1996-02-09 Vorrichtung zum Auswalzen der Enden eines aufgewickelten Bandes in einem Reversierwalzwerk

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19504711 1995-02-14
DE19504711A DE19504711C1 (de) 1995-02-14 1995-02-14 Verfahren und Vorrichtung zum Auswalzen der Enden eines aufgewickelten Bandes in einem Reversierwalzwerk
PCT/EP1996/000534 WO1996025251A1 (fr) 1995-02-14 1996-02-09 Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible

Publications (2)

Publication Number Publication Date
EP0809547A1 true EP0809547A1 (fr) 1997-12-03
EP0809547B1 EP0809547B1 (fr) 1999-03-31

Family

ID=7753814

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96901796A Expired - Lifetime EP0809547B1 (fr) 1995-02-14 1996-02-09 Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible

Country Status (6)

Country Link
US (1) US6014882A (fr)
EP (1) EP0809547B1 (fr)
JP (1) JPH11500065A (fr)
DE (2) DE19504711C1 (fr)
ES (1) ES2130791T3 (fr)
WO (1) WO1996025251A1 (fr)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605008A1 (de) * 1996-01-30 1997-07-31 Mannesmann Ag Verfahren zum Walzen von Warmband, insbesondere Warmbreitband
DE19938966C1 (de) * 1999-06-01 2000-10-19 Carl Wezel Fa Verfahren und Vorrichtung zum Herstellen eines bandförmigen Vormaterials aus Metall, insbesondere eines solchen Vormaterials welches in regelmäßig wiederkehrenden Abschnitten profiliert ist, und die Verwendung einer Vorrichtung dafür
AU5212500A (en) * 1999-05-12 2000-12-05 Hjb Rolling Mill Technology Gmbh Method for producing a striplike pre-material made of metal, especially a pre-material which has been profiled into regularly reoccurring sections, and device therefor
US6167736B1 (en) * 1999-07-07 2001-01-02 Morgan Construction Company Tension control system and method for reducing front end and tail end overfill of a continuously hot rolled product
DE10134285B8 (de) * 2000-11-11 2005-06-30 Fa. Carl Wezel Verfahren zum Herstellen eines bandförmigen Vormaterials, insbesondere aus Metall, welches in aufeinanderfolgenden Abschnitten profiliert ist, und eine Vorrichtung dafür
US20050028574A1 (en) * 2001-10-11 2005-02-10 Lobbecke Bernd Von Flat metal, production device and production method
DE102007049062B3 (de) * 2007-10-12 2009-03-12 Siemens Ag Betriebsverfahren zum Einbringen eines Walzguts in ein Walzgerüst eines Walzwerks, Steuereinrichtung und Walzwerk zum Walzen eines bandförmigen Walzgutes
JP2012171005A (ja) * 2011-02-24 2012-09-10 Jp Steel Plantech Co ローラレベラおよび金属板の矯正方法
JP5737617B2 (ja) * 2011-04-01 2015-06-17 株式会社Ihi 電極帯板の連続圧縮装置と方法
CN103691739A (zh) * 2013-12-11 2014-04-02 马鞍山市华科实业有限公司 钢带的冷轧工艺
CN108393356A (zh) * 2018-04-20 2018-08-14 天津重电气自动化有限公司 一种应用于热连轧热卷箱和飞剪的电控系统
CN112334243B (zh) * 2019-01-29 2022-09-13 普锐特冶金技术日本有限公司 轧制装置的控制装置、轧制设备以及轧制装置的运转方法
WO2025224991A1 (fr) * 2024-04-26 2025-10-30 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Dispositif de commande de dispositif de laminage, équipement de laminage et procédé de fonctionnement de dispositif de laminage
WO2025224989A1 (fr) * 2024-04-26 2025-10-30 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 Dispositif de commande pour dispositif de laminage, équipement de laminage et procédé de fonctionnement de dispositif de laminage

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE624109A (fr) * 1961-10-27
JPS5858923A (ja) * 1981-10-02 1983-04-07 Takasago Tekko Kk 圧延機の制御方法及び同装置
JPS60102208A (ja) * 1983-11-07 1985-06-06 Kawasaki Steel Corp 板の可逆圧延方法
US4555922A (en) * 1984-07-13 1985-12-03 Tippins Machinery Company, Inc. Adaptive strip wedge control for reversing mill
JPS60244417A (ja) * 1985-05-09 1985-12-04 Kobe Steel Ltd 可逆圧延機における逆転時の通板方法
CN1040073C (zh) * 1989-12-25 1998-10-07 石川岛播磨重工业株式会社 轧机的板厚控制系统
JPH03226301A (ja) * 1990-01-31 1991-10-07 Kobe Steel Ltd リバースミルによる圧延板厚制御方法
FR2664510B1 (fr) * 1990-07-12 1995-02-24 Clecim Sa Procede de laminage reversible.

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9625251A1 *

Also Published As

Publication number Publication date
DE59601557D1 (de) 1999-05-06
JPH11500065A (ja) 1999-01-06
EP0809547B1 (fr) 1999-03-31
ES2130791T3 (es) 1999-07-01
US6014882A (en) 2000-01-18
DE19504711C1 (de) 1996-11-14
WO1996025251A1 (fr) 1996-08-22

Similar Documents

Publication Publication Date Title
EP0809547B1 (fr) Procede de dispositif pour le laminage des extremites d'une bande enroulee dans un laminoir reversible
DE69102280T2 (de) Verfahren und anlage zum herstellen von direkt einer warmwalzstrasse erzeugter stahlbandcoils mit kaltwalzeigenschaften.
DE2256024A1 (de) Verfahren zum walzen von heissen metallwerkstuecken
DE10133756A1 (de) Kaltwalzwerk sowie Verfahren zum Kaltwalzen von metallischem Band
DE69616638T2 (de) Verfahren zur Herstellung von Bänder aus nichtrostendem Stahl
DE2539216A1 (de) Abbeiz- und walzstrasse
DE60109846T2 (de) Verfahren und Anlage zum Kaltwalzen
DE69909332T2 (de) Integriertes kontinuierliches stranggiess- und inline warmwalzverfahren sowie entsprechendes verfahren mit zwischenwickeln und abwickeln des vorstreifens
EP0619377B1 (fr) Four à bobineuse
DE102006029858A1 (de) Verfahren und Vorrichtung zum Aufwickeln eines metallischen Bandes
DE19680225C1 (de) Haspelofen für ein Warmband
DE10357622A1 (de) Verfahren und Anlage zum Walzen von Walzgut
DE102004041321A1 (de) Walzwerk zum Walzen von metallischem Band
DE29623757U1 (de) Vorrichtung zum Auswalzen der Enden eines aufgewickelten Bandes in einem Reversierwalzwerk
EP0129209A2 (fr) Machine d'accumulation de bandes
DE2049615A1 (en) Wire winding machine spool changing
EP3099432B1 (fr) Procédé et dispositif d'échantillonnage de bandes métalliques
DE4124800A1 (de) Verfahren zum behandeln von metallbaendern, insbesondere von warmgewalzten metallbaendern im einlaufteil einer kontinuierlich durchlaufenden beizlinie
DE3412740A1 (de) Vorrichtung zum umwickeln von grossrollen mit einer kunststoffolie
DE2830253C3 (de) Verfahren und Vorrichtung zum Stapeln von Bandteilen von Walzbändern
DE4241191C2 (de) Bandeinrollmaschine
DE889734C (de) Aufgabe- und Abgabevorrichtung bei Kaltwalzwerken fuer Baender mit Zugwickeltrommeln
EP0909596A2 (fr) Dispositif de déroulage de bandes
DE10162433B4 (de) Verfahren und Vorrichtung zum Vortreiben von Metallbändern
DE2606301C2 (de) Einrichtung zum Zu- und Abführen von Metallband

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19970805

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): DE ES FR GB IT

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAG Despatch of communication of intention to grant

Free format text: ORIGINAL CODE: EPIDOS AGRA

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

17Q First examination report despatched

Effective date: 19980904

GRAH Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOS IGRA

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE ES FR GB IT

REF Corresponds to:

Ref document number: 59601557

Country of ref document: DE

Date of ref document: 19990506

ITF It: translation for a ep patent filed
RAP2 Party data changed (patent owner data changed or rights of a patent transferred)

Owner name: SUNDWIG GMBH.

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19990510

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2130791

Country of ref document: ES

Kind code of ref document: T3

ET Fr: translation filed
PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20010205

Year of fee payment: 6

Ref country code: FR

Payment date: 20010205

Year of fee payment: 6

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20010219

Year of fee payment: 6

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020211

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20020209

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20021031

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20031022

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050209

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20050426

Year of fee payment: 10

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20060901