EP0166981B1 - Commande de positionnement pour règles ou rouleaux de guidage latéral situés à l'entrée d'un train finisseur pour feuillards laminés à chaud - Google Patents

Commande de positionnement pour règles ou rouleaux de guidage latéral situés à l'entrée d'un train finisseur pour feuillards laminés à chaud Download PDF

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Publication number
EP0166981B1
EP0166981B1 EP85106802A EP85106802A EP0166981B1 EP 0166981 B1 EP0166981 B1 EP 0166981B1 EP 85106802 A EP85106802 A EP 85106802A EP 85106802 A EP85106802 A EP 85106802A EP 0166981 B1 EP0166981 B1 EP 0166981B1
Authority
EP
European Patent Office
Prior art keywords
strip
guide
guide rollers
piston
rolling
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
EP85106802A
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German (de)
English (en)
Other versions
EP0166981A1 (fr
Inventor
Jürgen Dr. Ing. Klöckner
Dieter Rosenthal
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 Schloemann Siemag 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
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First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6239197&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0166981(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT85106802T priority Critical patent/ATE35387T1/de
Publication of EP0166981A1 publication Critical patent/EP0166981A1/fr
Application granted granted Critical
Publication of EP0166981B1 publication Critical patent/EP0166981B1/fr
Expired 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
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/14—Guiding, positioning or aligning work

Definitions

  • the invention relates to a positioning control device arranged in front of the entrance of hot strip finishing rolling mills, consisting of guide rulers or guide rollers which can be displaced transversely to the rolling direction, and driven by piston-cylinder units, strip side guides which are dependent on continuously transmitted measured values of the strip position within the finishing rolling mill for generate each position control circuit assigned to the piston-cylinder units after comparison of the actual measured values with predetermined target values, which cause a corresponding displacement of one or both guide strips or guide rollers.
  • Positioning control devices of this type are based on the knowledge gained from practical tests that the strip position in the finishing mill is identical to the shape and position of the pre-strip, i.e.
  • straight slats have a correspondingly straight and good strip run, in which the side guides only hold the strip and opening up the strip edges on the side guides leads to the strip run.
  • the decisive influence on the run of the strip through the finishing mill is a strip side guide, which is arranged in front of the first stand of the finishing mill; with it, the position of the strip and thus the strip course 'in the subsequent finishing mill can be influenced in a targeted manner.
  • a positioning control of this type (DE-A-3 116 278)
  • the side edges of the hot wide strip are acted upon by guide rollers which can be moved transversely to the rolling direction in displacement guides before entering the first stand of the finishing rolling mill.
  • the displacement movements are effected by servomotors that are part of positioning control loops. With the help of these servomotors, it is possible to counteract the expected slanting of the strip before this course becomes visible, since the comparative evaluation of the measurement results transmitted by the measuring devices arranged within the finishing mill announces a tendency of the strip to skew so that the corresponding change in position can be counteracted by moving the guide rollers.
  • the known device uses in particular elastically deformable bending beams which, in the case of a slight elastic deformation by means of strain gauges, already trigger signals when the side pressure of the edges of the rolled strip exceeds predetermined values.
  • This positioning control has proven itself for the lateral guidance of essentially normal pre-strips. Difficulties arise when e.g. B. the end of a supporting strip is wider than its nominal width. In this case, the end of the belt is forcibly pulled from the first finishing stand through the side guide and may stress these guides with a multiple of the normal load. This can result in a large one-sided deformation of the strip edges and even buckling of the strip and, in addition, in large axial reaction forces in the bearings of the rolls of the first roll stands of the finishing train; this stress occurs especially when the band end is curved on one side. In this case, the end of the belt is supported on one side on one of the side guides and presses against it with relatively great force.
  • the reaction forces have to be absorbed by the axial bearings of the rollers of the first rolling stands of the finishing train and can damage the bearings.
  • the known position control devices do not respond to such a condition, or do so incorrectly, since the position of the strip displayed for the measuring devices within the finishing mill is correct and the measuring devices for the side pressure, if any, only indicate that the specified target value has been exceeded and the generation of correction signals for the Have the belt restore straight running.
  • the invention has for its object to improve the generic positioning control devices so that the harmful effects of wide tapes or bent tape ends on the side guides, the tape and the bearings are avoided by the operation of the positioning control device.
  • This object is achieved in that the position control is superimposed by a pressure control which, depending on the comparison of the actual value of the compressive force occurring and measured by the strip edge when a guide strip or guide roller is acted upon, with a predetermined desired value, a correction actuating signal for the Displacement of both guide strips or guide rollers in the opening or closing sense and that from the comparison of upsetting forces occurring on both guide strips or guide rollers with a predetermined target value, a correction control signal is formed via a monitoring controller, which indicates a displacement of the guide strips or guide rollers in the Opening sense.
  • the correction actuating signal generated thereby causes a displacement of the two guide strips or guide rollers away from one another in the opening direction until the compressive force has dropped again to the permissible predetermined value is.
  • the Harmfully high bearing loads as a result of curved belt ends are avoided in that an additional correction actuating signal for the position control of the guide strips or guide rollers is supplied by a monitoring controller. This is the case if the differential compressive force between the drive and operator side, which is constantly measured, exceeds a predetermined differential setpoint. This then causes a corresponding displacement movement of the guide bar or guide roller which is subject to higher loads in the opening direction, ie away from the associated band edge.
  • the width of the sliver can be corrected to a limited extent by means of a targeted movement of the side guides in the opening or closing direction with a corresponding control concept, without the strip edges being deformed or the strip buckling.
  • the guide rollers 1 are mounted in a cassette 2 which can be displaced transversely to the rolling direction.
  • this cassette 2 On the side facing away from the guide roller, this cassette 2 has a stop plate which is acted upon by the end face of the piston 4 of the piston-cylinder unit 5, the cylinder of which is rotatably mounted about a stationary axis 6 running parallel to the rolling direction.
  • two further balancing piston-cylinder units 7 and 8 are articulated to the cassette with axes 7a, 8a running parallel to the rolling direction and pivotable about stationary axes 7b, 8b also running parallel to the rolling direction .
  • the formation of the piston-cylinder unit 5, the piston 4 of which acts on the stop plate 3, in conjunction with the two balancing piston-cylinder units 7 and 8, allows the edges of the (not shown) rolled strip to be drawn off by means of the guide rollers 1 at a high level Apply pressure to achieve a compression effect.
  • the two balancing cylinders 7 and 8 pull the cassette 2 with the stop plate 3 practically without play against the end face of the piston 4 of the piston-cylinder unit 5.
  • the circuit diagram of the positioning control shown in FIG. 2 shows the arrangement and connection of the circuit elements.
  • a low-pressure (LP) system is used to travel long distances.
  • the piston-cylinder units 5 on the drive and operating side are connected to the LP pumps via switching valves 10.
  • the possible travel speed results from the pump capacity and the cylinder dimensions.
  • the respective gauge roll gap can be roughly approached using the ND system.
  • the exact positioning is then carried out via the position control of the piston-cylinder units 5. If the HD system fails, the already explained balancing cylinders 7, 8 (FIG. 1) automatically pull the piston 4 of the piston-cylinder unit 5 back , so that rolling can continue even in the event of such a failure.
  • the piston or piston rod side of the piston-cylinder unit 5 are acted upon with the system pressure or connected to the tank 12 via a servo valve 11 in accordance with the respective direction of movement.
  • the accumulators arranged in the immediate vicinity of the servo valves 11 are dimensioned such that small adjustment paths can be driven out of the accumulators without a large loss of pressure. The capacity of the - not shown - HD pump is therefore small.
  • the loop gain of the position control loop with a position transmitter 13 on the drive and the operator side is composed of an electrical and a hydraulic component. If a target-actual deviation is determined, then the servo valve 11 is opened by position and current controllers by a certain amount in accordance with the electrical amplification. The travel speed that then arises is not only proportional to the valve opening, but also depends on the pressure drop at the control edge of the servo valve 11. This pressure drop is determined by the compression force and the system pressure. The loop gain of the position control loop is therefore dependent on the force.
  • Two pressure transmitters 14, 15 measure the compression force on the drive and auxiliary side. Exceeds z. B. the measured force the predetermined setpoint 16, the pressure controller 17 provides a correction signal As i for the position control loop. This causes the guide strips or guide rollers to move away from each other in the opening direction until the compressive force has dropped again to the permissible predetermined value.
  • the differential compressive force between the drive and operating side is continuously determined on the summer 18. If this force exceeds the predetermined setpoint 19, the monitoring controller 20 supplies correction signals As 2 for the position control loops. This leads to the fact that the guide bar or guide roller, which is subject to higher loads, opens in the opening direction, that is to say away from the belt edge, and thus prevents a load on the roller bearings in the first stand of the finishing train.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (2)

1. Dispositif de commande du positionnement d'organes de guidage latéral de bandes agencés en amont de l'entrée de trains de laminage de finition à chaud de bandes larges et constitués par des règles de guidage ou des galets de guidage (1) déplaçables transversalement par rapport à la direction de laminage, et entraînés par des dispositifs à piston et cylindre (4, 5), qui produisent des signaux de commande destinés à chacun des circuits de réglage du positionnement correspondant aux dispositifs à piston et cylindre (4, 5) en fonction de valeurs continuellement mesurées des positions de bande à l'intérieur du train de laminage, et après comparaison des valeurs mesurées réelles avec des valeurs de consigne prédéterminées, signaux de commande qui entraînent un déplacement correspondant de l'une ou des deux règles ou galets de guidage (1), caractérisé en ce que le réglage du positionnement est subordonné à un réglage par pression qui produit, en fonction de la comparaison de la valeur réelle de la force de refoulement mesurée et apparaissant lors du contact entre le bord de la bande et une règle ou un galet de guidage (1) avec une valeur de consigne prédéterminée, éventuellement un signal de correction destiné au déplacement des deux règles ou galets de guidage (1) dans le sens de l'ouverture ou de la fermeture et en ce que, à partir de la comparaison de la différence des forces de refoulement apparaissant aux deux règles ou galets de guidage (1) avec une valeur de consigne prédéterminée, un signal de correction est formé via un dispositif de surveillance (20), signal de correction qui entraîne un déplacement des règles ou galets de guidage (1) dans le sens de l'ouverture.
2. Dispositif de commande de positionnement selon la revendication 1, comportant des galets de guidage logés dans un chariot déplaçable transversalement, caractérisé en ce que les galets de guidage (1) et le chariot (2) sont supportés sur deux côtés, en ce que le chariot (2) comporte, sur le côté opposé au galet de guidage (1), un socle de butée (3) muni d'une surface de butée verticale, parallèle à la direction de laminage, sur laquelle la face frontale du dispositif à piston et cylindre (5) est apte à agir, le cylindre du dispositif à piston et cylindre (5) étant pivotable autour d'un axe fixe (6) parallèle à la direction de laminage et en ce que des dispositifs d'équilibrage à vérin (7, 8) sont articulés, selon des axes (7a, 8a) parallèles à la direction de laminage, sur le chariot (2), au-dessus et en dessous du socle de butée (3), les vérins étant pivotables autour d'axes fixes (7b, 8b) également parallèles à la direction de laminage.
EP85106802A 1984-06-27 1985-06-03 Commande de positionnement pour règles ou rouleaux de guidage latéral situés à l'entrée d'un train finisseur pour feuillards laminés à chaud Expired EP0166981B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85106802T ATE35387T1 (de) 1984-06-27 1985-06-03 Positioniersteuerinrichtung fuer vor dem eingang von warmbreitband-fertigwalzstrassen angeordnete, quer zur walzrichtung verschiebbare fuehrungslineale bzw. fuehrungsrollen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3423560 1984-06-27
DE19843423560 DE3423560A1 (de) 1984-06-27 1984-06-27 Positioniersteuereinrichtung fuer vor dem eingang von warmbreitband-fertigwalzstrassen angeordnete, quer zur walzrichtung verschiebbare fuehrungslineale bzw. fuehrungsrollen

Publications (2)

Publication Number Publication Date
EP0166981A1 EP0166981A1 (fr) 1986-01-08
EP0166981B1 true EP0166981B1 (fr) 1988-06-29

Family

ID=6239197

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85106802A Expired EP0166981B1 (fr) 1984-06-27 1985-06-03 Commande de positionnement pour règles ou rouleaux de guidage latéral situés à l'entrée d'un train finisseur pour feuillards laminés à chaud

Country Status (5)

Country Link
US (1) US4590778A (fr)
EP (1) EP0166981B1 (fr)
JP (1) JPS6114013A (fr)
AT (1) ATE35387T1 (fr)
DE (2) DE3423560A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015221762A1 (de) 2015-11-05 2017-05-11 Sms Group Gmbh Vorrichtung zum Anstellen einer Stauchwalze eines Stauchgerüsts

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8523750U1 (de) * 1985-08-19 1985-10-10 Badische Stahl-Engineering GmbH, 7640 Kehl Rollenführung, insbesondere für Knüppel, Stab- und Drahtwalzgerüste
JPH0669582B2 (ja) * 1990-10-23 1994-09-07 石川島播磨重工業株式会社 サイドガイドの制御方法
GB2276107B (en) * 1990-10-23 1995-05-03 Ishikawajima Harima Heavy Ind Method of winding a strip of material
DE19613728B4 (de) * 1996-01-25 2004-03-25 Sms Demag Ag Verfahren zum Walzen von Edelstahlband
DE19713604A1 (de) * 1997-04-02 1998-10-08 Schloemann Siemag Ag Einer Fertigstraße für stranggegossenes Bandmaterial vorgeordnetes positionsgeregeltes Stauchgerüst
IT1296906B1 (it) * 1997-12-24 1999-08-02 Abb Sistemi Ind Spa Dispositivo di regolazione delle guide di ingresso del nastro in un laminatoio
DE102006011975A1 (de) * 2006-03-15 2007-09-27 Siemens Ag Betriebsverfahren für ein Walzwerk zum Walzen eines bandförmigen Walzguts
DE102008026946B4 (de) * 2007-08-29 2017-05-04 Sms Group Gmbh Vorrichtung und Verfahren zum Positionieren einer Bandkantenmaske in einer Galvanisierungsanlage
GB2468913B (en) * 2009-03-27 2011-02-16 Siemens Vai Metals Tech Ltd Fully hydraulic edger for plate mills
DE102009041453A1 (de) 2009-09-12 2011-03-24 Sms Siemag Ag Führungsvorrichtung für eine Bandwalzanlage
DE102009060826A1 (de) * 2009-12-29 2011-06-30 SMS Siemag AG, 40237 Regelung der Seitenführung eines Metallbandes
DE102009060823A1 (de) * 2009-12-29 2011-06-30 SMS Siemag AG, 40237 Regelung von Seitenführungen eines Metallbandes
CN102189123B (zh) * 2011-03-04 2013-02-27 安徽马钢和菱实业有限公司 车轴轧制气动精确定位控制装置
CN102489520B (zh) * 2011-12-06 2014-04-23 中国重型机械研究院有限公司 三辊式稳定辊机构
ITMI20120840A1 (it) * 2012-05-15 2013-11-16 Danieli Off Mecc Sistema di controllo per capsule idrauliche di laminatoio per corpi astiformi
CN104785548A (zh) * 2014-01-16 2015-07-22 宝山钢铁股份有限公司 一种带钢边部导向装置

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1652978B1 (de) * 1961-02-23 1969-10-23 Siemag Siegener Maschb Gmbh Einrichtung zum Verschieben und Fuehren von Walzgut
FR1391645A (fr) * 1963-05-07 1965-03-05 Demag Ag Cage de laminage duo à inversion pourvue de règles de basculement et de translation
FR1459142A (fr) * 1965-09-28 1966-04-29 United Eng Foundry Co Laminoir
JPS51149152A (en) * 1975-06-17 1976-12-21 Sumitomo Metal Ind Stripper guide for rolling mill
GB1534882A (en) * 1975-10-17 1978-12-06 British Steel Corp Roller guides
JPS61108415A (ja) * 1984-10-31 1986-05-27 Kawasaki Steel Corp 熱間連続圧延ラインにおける鋼板サイドガイドの制御方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015221762A1 (de) 2015-11-05 2017-05-11 Sms Group Gmbh Vorrichtung zum Anstellen einer Stauchwalze eines Stauchgerüsts

Also Published As

Publication number Publication date
DE3423560A1 (de) 1986-01-09
EP0166981A1 (fr) 1986-01-08
US4590778A (en) 1986-05-27
ATE35387T1 (de) 1988-07-15
DE3563516D1 (en) 1988-08-04
JPS6114013A (ja) 1986-01-22

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