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EP1206981A2 - Cage de laminoir à plusieurs cylindres - Google Patents

Cage de laminoir à plusieurs cylindres Download PDF

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Publication number
EP1206981A2
EP1206981A2 EP01124929A EP01124929A EP1206981A2 EP 1206981 A2 EP1206981 A2 EP 1206981A2 EP 01124929 A EP01124929 A EP 01124929A EP 01124929 A EP01124929 A EP 01124929A EP 1206981 A2 EP1206981 A2 EP 1206981A2
Authority
EP
European Patent Office
Prior art keywords
rolling
work rolls
thickness
roll
rolling stock
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.)
Withdrawn
Application number
EP01124929A
Other languages
German (de)
English (en)
Other versions
EP1206981A3 (fr
Inventor
Rolf Dr.-Ing. Bünten
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.)
SMS Siemag AG
Original Assignee
SMS Demag 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 SMS Demag AG filed Critical SMS Demag AG
Publication of EP1206981A2 publication Critical patent/EP1206981A2/fr
Publication of EP1206981A3 publication Critical patent/EP1206981A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • 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
    • B21B37/165—Control of thickness, width, diameter or other transverse dimensions responsive mainly to the measured thickness of the product
    • 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
    • B21B2001/228—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 skin pass rolling or temper rolling
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B2031/206—Horizontal offset of work rolls
    • 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
    • B21B37/58—Roll-force control; Roll-gap control
    • B21B37/62—Roll-force control; Roll-gap control by control of a hydraulic adjusting device

Definitions

  • the invention relates to a multi-roll stand with a number of driven Back-up rolls and with a number of these via friction drive entrained work rolls, the work rolls forming a nip, which is the thickness of one passed between the work rolls in one rolling direction Rolling stock pretends.
  • a roll stand can be used to roll a rolling stock, for example in a rolling mill are used.
  • the roll stand is often a so-called Multi-roll stand and includes a number of working and a number of backup rolls.
  • the back-up rolls are usually of one assigned drive driven, each backup roller with an associated Work roller is in frictional contact. Through the friction drive thus produced each work roll is supported by its associated support roll with powered.
  • the work rolls act on both sides of a rolling stock, the thickness of the between the work rolls through the multi-roll stand guided rolling stock determined by the roll gap formed by the work rolls becomes.
  • the thickness of the rolling stock passed through the multi-roll stand can thereby by means of a corresponding variation of what is also referred to as the rolling force
  • the contact pressure of each work roll can be set.
  • the respective multi-roll stand is designed to cover a comparatively high rolling force range.
  • the essential components usually designed such that Measuring errors such as errors in the rolling force measurement depending on Maximum value of the respective measured value are. Especially when measuring the rolling force, whose range of values covers a comparatively large rolling force range, the absolute measurement error is therefore comparatively large.
  • the so-called skin-passaging of IF steel also applies to such Multi-roll stands the setting of comparatively small rolling forces required. Accordingly, in the case of a multi-roll stand, which can be used on the one hand Dressing IF steel should be used and on the other hand to cover a overall comparatively large rolling force range is provided, the Measurement errors in the determination of the rolling force greater than that for skin passaging the IF steel intended rolling force itself. The thickness and / or skin pass level control in such a multi-roll stand is therefore comparatively imprecise.
  • the invention is therefore based on the object, a multi-roll stand of the above Specify the type mentioned, on the one hand in a comparatively high rolling force range can be used, and on the other hand also with comparatively small ones Rolling forces in terms of its roll gap and thus in terms of the thickness of the Rolling stock is particularly precisely adjustable. Furthermore, a method of operation is said to of such a multi-roll stand can be specified that also at comparatively small rolling forces a particularly precise thickness control of the Rolling stock enables.
  • this object is achieved according to the invention, by the work rolls to adjust the gap width of the roll gap in one Direction are essentially parallel to the rolling direction.
  • the invention is based on the consideration that the thickness setting of Rolled stock can be made with a particularly high accuracy by using a control parameter with a comparatively large travel range.
  • the real one Control variable for the thickness setting namely the position of the respective Work roll perpendicular to the rolling direction to form the nip, but points only a comparatively short travel range. It is therefore used in a manipulated variable with a comparatively longer travel range, namely the position of the work roll in a direction parallel to the rolling direction.
  • a rolling mill for carrying out the rolling stock is usually essentially horizontal rolling direction.
  • a control device is advantageously assigned to the multi-roll stand. This is expediently on the output side with a number of adjusting devices connected, each of which has a work roll for adjusting its Position in the rolling direction is assigned.
  • the control device gives for each control device has a control value for the positioning of the respective Work roll in the rolling direction, the respective manipulated variable depending on a measured actual value for the thickness of the rolling stock is selected.
  • actuating devices acting on the work rolls Embodiments, for example in the form of rotating spindles, may be provided.
  • the actuating devices are advantageously in the form of hydraulic actuating devices trained, achieving a particularly high setting accuracy leaves.
  • control device for a timely and particularly responsive control is advantageous a direct application of the control device with a for the thickness of the Rolled characteristic characteristic value provided.
  • This is the control device advantageously on the input side with a for detecting the thickness of the rolling stock designed transmitter connected.
  • a memory module assigned in which a number of target values for the thickness of the rolling stock can be stored is.
  • it can be particularly simple Can be switched between different rolling programs by a new updated target value for the thickness of the rolling stock from each setpoints stored in the memory block is selected.
  • the said Task solved by changing the thickness of the rolling stock by a shift of the work rolls in a direction substantially parallel to the rolling direction is set.
  • the setting of the position of the work rolls in the rolling direction is advantageous based on a comparison of a currently determined thickness of the rolling stock with a target value for the thickness of the rolling stock.
  • the advantages achieved with the invention are in particular that the displacement of the work rolls in the rolling direction for the purpose of adjustment the gap width of the roll gap indirectly influences the thickness of the rolling stock and via a control parameter with a comparatively large travel range. Precisely due to the geometrical relationships between the support rollers and the Work rolls are thus the displacement strokes of the work rolls, that is to say the achievement a specifiable change in the gap width of the roll gap required Changes in position, especially large, so that the sensitivity and Accuracy in setting the gap width of the roll gap is particularly high.
  • the position of the work rolls is adjusted to the rolling force in the substantially vertical direction, so that coupling to the rolling force only via the deflection in the work roll itself. Incidentally, at such an adjustment of the gap width of the roll gap especially the framework friction kept low.
  • the multi-roll stand 1 is designed as a four-roll stand and comprises one upper and lower work rolls 2 and 4, which are substantially vertical of each a support roller 6 and 8 are supported.
  • the work rolls 2, 4 are not assigned roller bending devices, which are used to set a Apply the vertical roll bending forces to the work rolls 2, 4.
  • the support rollers 6, 8 can each be driven by a drive, not shown in detail, keeping them rotating around their central axis. Every work roll 2, 4 is with the respective support roller 6 or 8 in frictional contact, so that it is driven by the one assigned to it Back-up roller 6 or 8 is taken along in the friction drive.
  • a rolling stock 10 is guided essentially in the horizontal rolling direction x.
  • the work rolls 2, 4 form in substantially perpendicular to the rolling direction x Direction of a roll gap 12, the thickness of the leaving the multi-roll stand 1 Rolling stock 10 specifies.
  • the multi-roll stand 1 is on the one hand for loading the rolling stock 10 with a rolling force oriented substantially perpendicular to the rolling direction x formed a comparatively large rolling force range. It is by means of a Not shown actuator, the rolling force on the support rollers 6, 8th adjustable, which is transferred via the work rolls 2 and 4 to the rolling stock 10.
  • the multi-roll stand 1 is both for comparatively low rolling forces, as they are required, for example, for the dressing of IF steel, as well as for comparatively high rolling forces designed and therefore in terms of its purpose particularly flexible.
  • the multi-roll stand 1 is also - especially in comparison small rolling forces - for a particularly precise adjustment of the thickness of the rolling stock 10 trained.
  • the multi-roll stand 1 is a control device 20 assigned over which the work rolls 2, 4 for setting the gap width of the Rolling gap 12 can be displaced in a direction essentially parallel to the rolling direction x are.
  • each work roll 2, 4 is parallel in one direction at the end slidably supported to the rolling direction x.
  • each work roll 2, 4 is each an adjusting system 22 or 24 assigned.
  • the assigned to the work roll 2 Control system 22 comprises a hydraulically actuated control piston 26, the Actuating pressure can be applied via an adjusting device 28 designed as a pressure transmitter is.
  • the control system assigned to the second work roll 4 comprises 24 an actuating piston 30, which is configured as a pressure transmitter 32 can be acted upon with signal pressure.
  • the control device is used to adjust the position of each work roll 2, 4 in the rolling direction x via data lines 34, 36 on the output side with the actuating devices 28, 32 connected.
  • the control device outputs the data lines 34, 36 the actuating devices 28 and 32 each have a manipulated value S based on them the setting of a signal pressure via the respective adjusting device 28 or 32 takes place, which in turn the respective position of the work roll 2 or 4 in Roll direction x specifies.
  • the control device 20 is for tracking the position setting of the work rolls 2, 4 in the rolling direction x as a function of the thickness of the rolling stock 10 educated.
  • the control device 20 is on the input side via a data line 40 with a transducer designed to detect the thickness of the rolling stock 10 42 connected.
  • the control device uses the control values S the positions of the work rolls 2, 4 in the rolling direction x until the Sensor 42 detected thickness of the rolling stock 10 a predetermined target value Sw equivalent.
  • the setpoint Sw is dependent on a predefinable purpose, from a plurality of in one connected to the control device 20 Data store 44 stored setpoints Sw can be read out.
  • each work roll 2, 4 and the respective support roll 6 or 8 rolls the respective work roll 2, 4 on the surface of the assigned Support roller 6, 8 from.
  • the shift results due to these boundary conditions the respective work roll 2, 4 in a direction parallel to the rolling direction x also in a change in the position of the respective work roll 2, 4 in one direction perpendicular to the rolling direction x and thus in a change in the gap width of the roll gap 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
EP01124929A 2000-11-03 2001-10-19 Cage de laminoir à plusieurs cylindres Withdrawn EP1206981A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10054580A DE10054580A1 (de) 2000-11-03 2000-11-03 Mehrwalzengerüst
DE10054580 2000-11-03

Publications (2)

Publication Number Publication Date
EP1206981A2 true EP1206981A2 (fr) 2002-05-22
EP1206981A3 EP1206981A3 (fr) 2006-05-03

Family

ID=7662071

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01124929A Withdrawn EP1206981A3 (fr) 2000-11-03 2001-10-19 Cage de laminoir à plusieurs cylindres

Country Status (3)

Country Link
US (1) US20020078729A1 (fr)
EP (1) EP1206981A3 (fr)
DE (1) DE10054580A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012168046A1 (fr) * 2011-06-07 2012-12-13 Sms Siemag Ag Dispositif de mesure, cage de laminoir et procédé de détection de la hauteur d'une emprise

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6708077B2 (en) * 2002-08-16 2004-03-16 General Electric Company Furnace pacing for multistrand mill
EP1514616A1 (fr) * 2003-09-12 2005-03-16 Josef Fröhling GmbH & Co. KG Dispositif de laminage et procédé de laminage
DE102008009902A1 (de) * 2008-02-19 2009-08-27 Sms Demag Ag Walzvorrichtung, insbesondere Schubwalzengerüst
IT201700028768A1 (it) * 2017-03-15 2018-09-15 Danieli Off Mecc Impianto combinato di colata continua e laminazione di nastri metallici a caldo
CN112828038B (zh) * 2021-01-28 2022-10-18 淅川县粉末冶金有限公司 一种金属自动化轧制方法
CN112808778B (zh) * 2021-01-28 2022-08-02 江门特固钢结构工程有限公司 一种可调节轧制厚度的金属轧制设备

Family Cites Families (13)

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Publication number Priority date Publication date Assignee Title
US2792730A (en) * 1953-05-14 1957-05-21 Baldwin Lima Hamilton Corp Metal forming
GB752397A (en) * 1953-05-14 1956-07-11 Hydropress Inc Rolling mill with backing rolls
BE622548A (fr) * 1961-09-19
FR1459730A (fr) * 1962-01-20 1966-06-17 Perfectionnements apportés aux laminoirs quarto équipés de cylindres de laminage de diamètre extrêmement faible
DE1602033A1 (de) * 1967-10-21 1970-04-23 Krupp Gmbh Regeleinrichtung fuer Walzgerueste
CH613134A5 (fr) * 1976-11-02 1979-09-14 Escher Wyss Ag
JPS5662603A (en) * 1979-10-23 1981-05-28 Ishikawajima Harima Heavy Ind Co Ltd Multistage rolling mill having shape control function
US4577480A (en) * 1983-06-22 1986-03-25 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Method and apparatus for controlling rolling correction in rolling mill
JPS60106602A (ja) * 1983-11-11 1985-06-12 Hitachi Ltd 圧延機
DE3811847A1 (de) * 1987-04-08 1988-10-20 Hitachi Ltd Verfahren zur regelung der arbeitswalzen-versetzung in einem walzgeruest
JPH07100165B2 (ja) * 1987-06-23 1995-11-01 株式会社日立製作所 圧延機ワ−クロ−ル水平移動型自動板厚制御装置
JP3526636B2 (ja) * 1994-10-18 2004-05-17 石川島播磨重工業株式会社 水平曲げ機構を備えた圧延機のギャップ補正方法及び制御装置
JP4090560B2 (ja) * 1998-03-30 2008-05-28 日新製鋼株式会社 粗圧延機作業ロール水平方向変位装置を用いた圧延機の制御方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012168046A1 (fr) * 2011-06-07 2012-12-13 Sms Siemag Ag Dispositif de mesure, cage de laminoir et procédé de détection de la hauteur d'une emprise
US8869577B2 (en) 2011-06-07 2014-10-28 Sms Siemag Ag Measuring device, roll stand and method of detecting the height of a roll gap
RU2561847C2 (ru) * 2011-06-07 2015-09-10 Смс Зимаг Аг Измерительное устройство, прокатная клеть и способ регистрации высоты межвалкового зазора

Also Published As

Publication number Publication date
EP1206981A3 (fr) 2006-05-03
US20020078729A1 (en) 2002-06-27
DE10054580A1 (de) 2002-05-08

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