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EP0602492A1 - Laminoir à plusieurs cylindres - Google Patents

Laminoir à plusieurs cylindres Download PDF

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Publication number
EP0602492A1
EP0602492A1 EP93119614A EP93119614A EP0602492A1 EP 0602492 A1 EP0602492 A1 EP 0602492A1 EP 93119614 A EP93119614 A EP 93119614A EP 93119614 A EP93119614 A EP 93119614A EP 0602492 A1 EP0602492 A1 EP 0602492A1
Authority
EP
European Patent Office
Prior art keywords
roll
support
stand according
roll stand
bearing housing
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
EP93119614A
Other languages
German (de)
English (en)
Other versions
EP0602492B1 (fr
Inventor
Peter Dipl.-Ing. Fröhling
Jürgen Dipl.-Ing. Sondermann
Jens Dr.-Ing. Rieckmann
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.)
Josef Frohling GmbH
Original Assignee
Josef Frohling GmbH
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 Josef Frohling GmbH filed Critical Josef Frohling GmbH
Publication of EP0602492A1 publication Critical patent/EP0602492A1/fr
Application granted granted Critical
Publication of EP0602492B1 publication Critical patent/EP0602492B1/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
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/14—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories having counter-pressure devices acting on rolls to inhibit deflection of same under load; Back-up rolls
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working 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

Definitions

  • the invention relates to a multi-roll stand according to the preamble of patent claim 1.
  • Multi-roll stands of this type are used to produce flat strips, such as steel strips.
  • flat strips such as steel strips.
  • the shaping of the material that is to say the stretching of the strip, based on the strip width, should be the same, regardless of any fluctuations in the thickness of the strip entering the roll stand.
  • the adaptation to the belt profile is achieved, inter alia, by the fact that the saddle pieces supporting the support rollers against the bearing housing are set differently, as a result of which the support roller shaft carrying the support rollers is bent and, accordingly, the support rollers are also bent according to their division over the length of the support roller shaft, Bend the work rolls over the intermediate rolls and thus influence the roll gap contour.
  • the bending of the support roller shaft is carried out in a known manner via components which act on the saddle pieces supporting the support rollers, such as eccentrics which can be moved by means of toothed racks or levers Screws, hydraulic cylinders or other actuators movable wedges, by means of threaded spindles provided with rotary drives or the like.
  • Such a multi-roll stand is described in EP 0 476 905 A2, for example, in which the movement of the saddle pieces is effected via eccentrics provided on the support roller shaft, which are actuated via a toothed wheel / rack drive.
  • the object of the invention is therefore to design a device of the generic type in such a way that the roll gap contour can be set smoothly by corresponding bending of the work rolls during the rolling operation.
  • the adjusting devices that set the saddle pieces and thus the support rollers and thus also the work roll are made of pressure elements that act directly on the respective saddle piece and act on it, so that the movement of the pressure elements is transmitted directly to the saddle pieces and adverse influences of the known actuators working in the self-locking area are avoided. This ensures jerk-free adjustment and, if necessary, readjustment of the roll gap even during rolling operation, and it is possible to provide the adjustment device with a control device.
  • Each individual adjusting device comprises a pressure piece 7, which acts on the saddle piece 16 assigned to it. Furthermore, the adjusting device has a wedge 8 which is movably guided in the bearing housing 2 and which can be moved via a threaded spindle 9 with a drive 10 which is also arranged in the bearing housing 2 such that a displacement of the wedge 8 via its contact surface with the pressure piece 7 to an adjustment of the corresponding saddle piece 16 leads.
  • each saddle piece 16 can thus be individually adjusted and the desired bending of the work roll can be determined in the manner described above.
  • this known device has the disadvantage that its components, that is to say the pressure pieces 7, wedges 8 and spindles 9 operate in the area or limit area of the self-locking and therefore a jerk-free adjustment of the saddle pieces and thus a regulated adjustment of the bending of the Make the work roll impossible to the profile of the incoming strip material.
  • FIG. 1 shows the basic structure of such a rolling mill using the example of a twelve-roll rolling mill.
  • the roll stand shown there in a side view consists of the frame 1, in which the bearing housing 2 is adjustably arranged.
  • This bearing housing 2 accommodates three sets of support rollers 6, which in turn support the work roller 4 via the intermediate rollers 5.
  • the aforementioned arrangement is again present in mirror form in the roll stand 1.
  • the mirror plane is formed by the material path of the strip material to be rolled, so that the strip 13 is passed between two work rolls 4.
  • the structure of the lower bearing housing with its rollers corresponds to the upper, so that a detailed description is unnecessary and the invention is explained below with reference to the upper bearing housing 2 and the parts associated with it.
  • FIG. 2 shows a detail of an adjustment device of the type known from the prior art in such a rolling stand.
  • 2 again designates the upper bearing housing, which receives the three support roller sets 6, the intermediate rollers 5 and between the two work rollers 4 the strip material 13 to be rolled.
  • Each of the three support roller sets consists of a support roller shaft 14 which carries individual support rollers 15 distributed over its length.
  • the support roller sets 6 are supported on the bearing housing 2 by means of saddle pieces 16 arranged on the support roller shaft 14 between the individual support rollers 15.
  • individual saddle pieces 16 denotes upper bearing housing, which shows the three sets of support rollers 6, the intermediate rollers 5 carried by them and the work rollers 4 between which the strip material 13 to be rolled runs.
  • the guidance of the upper bearing housing 2 in the scaffold frame known from FIG. 1 and the lower bearing housing and their adjustability in relation to the scaffold frame to influence the desired strip thickness are not shown here for the sake of clarity.
  • the lower bearing housing can be height-adjustable, for example, to adapt to the rolling line when using rollers of different diameters, and the upper bearing housing can be adjusted in relation to the lower bearing housing by means of a direct-acting hydraulic adjusting cylinder 3 (in FIG. 1).
  • the upper and lower bearing housings are balanced against each other by means of hydraulic cylinders, and the upper bearing housing 2 can be pivoted, for example, by means of the roller adjustment, which is independent of one another on the operator and drive side, in order to adjust a wedge-shaped roller gap.
  • FIG. 3 shows a section along the section line AB from FIG. 3, the support rollers 15 of a support roller set 6 are arranged over the entire width of the strip material on a common support roller shaft 14, in each case between two adjacent support rollers 15 and On the outer sides of the two outer support rollers 15, support saddles 16 are provided on the shaft 14, which support the support rollers on the bearing housing 2 by means of circular-shaped receptacles.
  • a bore is provided for each pressure element in the bearing housing 2, which proceeds approximately from the direction of force in the bearing housing from the circular-arc-shaped receptacle for the respective support saddle 16.
  • Hydraulic cylinders 11 or, for example, piezoelectric solid-state actuators, which preferably have piston rod heads 12 with suitable circular-arc-shaped receptacles for the support saddles 16, are inserted into these bores as pressure elements.
  • prismatic receptacles are also conceivable if the support saddles 16 are designed accordingly.
  • the piston rods with the piston rod heads 12 must be guided exactly.
  • piezoelectric solid-state actuators as pressure elements, these can consist of several ceramic layers, which change their thickness when an electrical voltage is applied and thus have the same effect as the hydraulic cylinders in terms of their effect on the support saddles 16.
  • the pressure elements assume a position in which the pistons are retracted into the bearing housing and the receptacles of the piston rod heads 12 are aligned with the receptacles in the bearing housing 2.
  • a desired bending of the support roller shaft 14 and thereby of the work roll 4 and adaptation of the roll gap contour is carried out by corresponding activation of the respective pressure elements, which move each of the saddle pieces 16 via their pistons into a defined position, thereby causing a targeted bending line of the support roller shaft, which is caused by the intermediate rolls 5 is transferred to the work roll 4.
  • the outer support saddles 16 of the support roller set (s) in question, relative to the width of the rolling material, are fixed in their position relative to the bearing housing, while the inner support saddles can be moved via the pressure elements in the manner described above and so on achieve the appropriate deflection.
  • the support saddles can be fixed directly in the bearing housing 2; but it is also conceivable that a positive connection between the support saddles and the associated pressure elements is provided and the fixing takes place via the latter.
  • the position control is described as the first suitable method.
  • the setpoint is specified as the path for each piston that is to be required to move the associated support saddle.
  • the actual value acquisition of the path takes place via digital or analog position measuring devices 17 of a known type, which are moved, for example, by the piston rod which is brought out outside the bearing housing.
  • digital or analog position measuring devices 17 of a known type, which are moved, for example, by the piston rod which is brought out outside the bearing housing.
  • the oil flow to the hydraulic cylinder is controlled, for example via a servo valve, in such a way that the predetermined position of the piston is kept in the desired position even under different loads.
  • the applied voltage is controlled accordingly.
  • Such a regulation can then be overlaid with a correction value which is dependent on the rolling force and / or depending on the oil pressure in each individual hydraulic cylinder, the elasticity of the system, such as flattening and elastic changes in shape of the work roll, the intermediate rolls or the support rollers, is taken into account as a setpoint change for the actuating movement and is incorporated into the control.
  • a second method is that of pressure regulation.
  • the rolling force necessary for the deformation of the strip is measured on the cylinders of the roll adjustment and calculated according to the strip width to be rolled and the geometry of the row of support rollers for each support saddle as a base value for the associated pressure element.
  • This base value is varied with a proportional value that can be selected for each printing element and is specified as a target value.
  • the actual value is recorded using suitable pressure sensors.
  • the oil pressure of each cylinder is kept at the desired value, for example via pressure regulating valves or servo valves, or the voltage applied to a piezoelectric pressure element is kept at its desired value.
  • the invention described here using the example of a twelve-roll rolling mill can of course also be used in other rolling mills in which the rolling force is transmitted directly or via intermediate rolls to the bearing housing by means of support rollers, for example in the case of six-roll or twenty-roll rolling mills.
  • the invention is also not limited to the exemplary embodiment shown, but can also be used, for example, in a one-piece design of the upper and lower bearing housing or in a two-piece design of the same, in which the bearing housing is connected and guided by means of round rods, anchors or frames.
  • the saddle pieces 16, according to FIGS. 2, 3, have holding members shown hatched there, such as e.g. Plates, held on the bearing housing and can be secured against falling out or moving.
  • holding members and their attachment not shown here, to the bearing housing 2, they can also be easily replaced, for example for a change to rolls of different diameters.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Transition And Organic Metals Composition Catalysts For Addition Polymerization (AREA)
  • Transplanting Machines (AREA)
EP93119614A 1992-12-08 1993-12-06 Laminoir à plusieurs cylindres Expired - Lifetime EP0602492B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4241267 1992-12-08
DE4241267A DE4241267A1 (de) 1992-12-08 1992-12-08 Vielwalzengerüst

Publications (2)

Publication Number Publication Date
EP0602492A1 true EP0602492A1 (fr) 1994-06-22
EP0602492B1 EP0602492B1 (fr) 1997-03-12

Family

ID=6474670

Family Applications (1)

Application Number Title Priority Date Filing Date
EP93119614A Expired - Lifetime EP0602492B1 (fr) 1992-12-08 1993-12-06 Laminoir à plusieurs cylindres

Country Status (5)

Country Link
EP (1) EP0602492B1 (fr)
JP (1) JP3305840B2 (fr)
AT (1) ATE149888T1 (fr)
DE (2) DE4241267A1 (fr)
RU (1) RU2108175C1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010366C2 (nl) * 1998-10-21 2000-04-25 Hoogovens Corporate Services B Inrichting voor een nauwkeurige positieregeling van een krachtoverbrengend systeem.
CN100345642C (zh) * 2003-06-09 2007-10-31 郑红专 支撑辊组件
DE102007006683A1 (de) * 2007-02-10 2008-08-28 WINKLER + DüNNEBIER AG Vorrichtung und Verfahren zur aktiven Schwingungsdämpfung bei gegenläufig rotierenden Walzen

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AP2091A (en) * 1999-03-04 2010-01-18 Zheng Hongzhuan A rolling mill with roll deflection bi-dimensionally controlled.
DE102009060642A1 (de) * 2009-07-07 2011-01-13 Sms Siemag Ag 4-Rollen-/-Rollen/18HS Rollenwalzgerüst in Kassettenbauweise
JP5613399B2 (ja) * 2009-11-05 2014-10-22 三菱日立製鉄機械株式会社 クラスター式多段圧延機
CN102825066A (zh) * 2012-09-13 2012-12-19 山东沃德动力科技有限公司 一种不锈钢带精轧机组
CN103316921A (zh) * 2013-07-11 2013-09-25 陶洪瑞 十八辊轧机工作辊侧支撑的斜铁调整装置
CN103341493B (zh) * 2013-07-11 2016-01-20 陶洪瑞 十八辊轧机工作辊侧支撑的油缸斜铁调整装置
CN103658191B (zh) * 2013-12-31 2015-06-24 一重集团大连设计研究院有限公司 一种冷轧机工作辊侧支承装置
CN105290111B (zh) * 2015-11-27 2017-04-05 中冶南方工程技术有限公司 一种用于十八辊冷轧机的换辊连接装置及换辊方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363444A (en) * 1962-12-22 1968-01-16 Skf Svenska Kullagerfab Ab Rolling mill
US3478559A (en) * 1966-05-20 1969-11-18 Natalis H Polakowski Flexible strip rolling mill
JPS5970407A (ja) * 1982-10-15 1984-04-20 Sumitomo Metal Ind Ltd 分割バツクアツプロ−ルを備えた圧延機
US4603569A (en) * 1984-07-20 1986-08-05 Tadeusz Sendzimir Pressure controlled plate mill
US4676085A (en) * 1985-07-31 1987-06-30 Wean United Rolling Mills, Inc. Rolling mill for controlling the contour of a workpiece
EP0476905A2 (fr) * 1990-09-19 1992-03-25 Hitachi, Ltd. Contrôle de planéité d'un laminoir à plusieurs cylindres

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU523726A1 (ru) * 1975-02-03 1976-08-05 Предприятие П/Я А-7697 Рабоча клеть многовалкового прокатного стана
SU895568A1 (ru) * 1975-03-24 1982-01-07 Предприятие П/Я А-7697 Опорное устройство прокатного валка
CH617603A5 (fr) * 1976-10-21 1980-06-13 Escher Wyss Ag
SU947934A1 (ru) * 1978-03-07 1982-07-30 Предприятие П/Я А-1376 Пьезоэлектрический преобразователь перемещени дискретного действи
AT368040B (de) * 1981-01-14 1982-08-25 Andritz Ag Maschf Walzenlagerung an walzgeruesten
DE4131571C2 (de) * 1991-09-23 1994-11-10 Sundwiger Eisen Maschinen Walzenstützvorrichtung zur Korrektur des Walzenspaltes in einem Vielwalzen-Walzgerüst für Bänder

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3363444A (en) * 1962-12-22 1968-01-16 Skf Svenska Kullagerfab Ab Rolling mill
US3478559A (en) * 1966-05-20 1969-11-18 Natalis H Polakowski Flexible strip rolling mill
JPS5970407A (ja) * 1982-10-15 1984-04-20 Sumitomo Metal Ind Ltd 分割バツクアツプロ−ルを備えた圧延機
US4603569A (en) * 1984-07-20 1986-08-05 Tadeusz Sendzimir Pressure controlled plate mill
US4676085A (en) * 1985-07-31 1987-06-30 Wean United Rolling Mills, Inc. Rolling mill for controlling the contour of a workpiece
EP0476905A2 (fr) * 1990-09-19 1992-03-25 Hitachi, Ltd. Contrôle de planéité d'un laminoir à plusieurs cylindres

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 8, no. 177 (M - 317) 1984 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL1010366C2 (nl) * 1998-10-21 2000-04-25 Hoogovens Corporate Services B Inrichting voor een nauwkeurige positieregeling van een krachtoverbrengend systeem.
WO2000023204A1 (fr) * 1998-10-21 2000-04-27 Corus Technology Bv Dispositif de controle du positionnement precis d'un systeme de transmission de force
US6373171B1 (en) 1998-10-21 2002-04-16 Corus Technology Bv Device for accurate position control of a force-transmitting system
CN100345642C (zh) * 2003-06-09 2007-10-31 郑红专 支撑辊组件
DE102007006683A1 (de) * 2007-02-10 2008-08-28 WINKLER + DüNNEBIER AG Vorrichtung und Verfahren zur aktiven Schwingungsdämpfung bei gegenläufig rotierenden Walzen

Also Published As

Publication number Publication date
JPH07284821A (ja) 1995-10-31
DE59305750D1 (de) 1997-04-17
EP0602492B1 (fr) 1997-03-12
ATE149888T1 (de) 1997-03-15
JP3305840B2 (ja) 2002-07-24
DE4241267A1 (de) 1994-06-09
RU2108175C1 (ru) 1998-04-10

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