EP0275875B1 - Dispositif de réglage pour une cage de laminoir universelle - Google Patents

Dispositif de réglage pour une cage de laminoir universelle Download PDF

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Publication number
EP0275875B1
EP0275875B1 EP88100096A EP88100096A EP0275875B1 EP 0275875 B1 EP0275875 B1 EP 0275875B1 EP 88100096 A EP88100096 A EP 88100096A EP 88100096 A EP88100096 A EP 88100096A EP 0275875 B1 EP0275875 B1 EP 0275875B1
Authority
EP
European Patent Office
Prior art keywords
screw
hydraulic
stand
electromechanical
coarse
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 - Lifetime
Application number
EP88100096A
Other languages
German (de)
English (en)
Other versions
EP0275875A3 (en
EP0275875A2 (fr
EP0275875B2 (fr
Inventor
Georg Engel
Ernst-August Häberer
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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Application filed by SMS Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT88100096T priority Critical patent/ATE69743T1/de
Publication of EP0275875A2 publication Critical patent/EP0275875A2/fr
Publication of EP0275875A3 publication Critical patent/EP0275875A3/de
Publication of EP0275875B1 publication Critical patent/EP0275875B1/fr
Application granted granted Critical
Publication of EP0275875B2 publication Critical patent/EP0275875B2/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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap
    • 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
    • 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
    • B21B1/08—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 structural sections, i.e. work of special cross-section, e.g. angle steel
    • B21B1/12—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 structural sections, i.e. work of special cross-section, e.g. angle steel in a continuous process, i.e. without reversing stands
    • 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
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B2013/106—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for sections, e.g. beams, rails
    • 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
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Definitions

  • the invention relates to an adjusting device according to the preamble of claim 1 for a universal roll stand with two hydraulic control cylinders for at least one horizontal roller, which is usually the top roller.
  • a device according to this type is already known from DE-A-11 18724. Hydraulic adjustment of both horizontal rolls is recommended to maintain the roll axis.
  • hydraulically controlled rollers can be combined with an electromechanical rough adjustment in order to keep the control stroke in the cylinders small because of the compressibility of the pressure oil.
  • the combination of hydraulic pressure devices and electromechanical adjusting devices has become known from DE-A-11 18724.
  • the invention deals with the retraction of universal rolling stands, which is carried out according to the prior art with the aid of test bars. Although it is possible to reproduce all setting data for the pass schedules of the program to be rolled, this cannot be taken into account from bar to bar due to roughing tolerances, temperature differences and changing rolling stock quality.
  • the invention has for its object to show a way how the caliber setting of a universal rolling stand, in particular as a finishing stand, can be carried out without a test run and test bar.
  • the solution to this problem consists according to the invention from the features of claim 1.
  • the combination of electromechanical coarse adjustments with hydraulic fine adjustments in connection with the measurement and control equipment of the adjusting device according to the invention makes it possible after a stitch-dependent electro-mechanical adjustment of the vertical rollers and at least one Horizontal roller to move the assigned hydraulic fine adjustments depending on the profile and rolling stock-dependent variable hydraulic pressures or rolling forces.
  • the position setpoints of the hydraulic fine adjustment are corrected depending on the rigidity or the spring deflection characteristics and the measured rolling forces.
  • the position of the hydraulic fine adjustments is recorded using position transducers and hydraulically regulated to new setpoints. Not only is the problem of the rapid caliber setting of a universal framework being solved without a test run using a test rod, but it is also achieved that the caliber setting which has hitherto only been approximately correct is automatically improved from rod to rod.
  • the changes in rolling force that were previously only recorded across the board during the rolling of a bar are also recorded in a targeted manner and the roll gap is continuously regulated during the passage of the bar, thus eliminating all the disadvantages of an uncontrolled stand.
  • the invention is primarily intended for finished stands, namely for the reproducible, caliber-dependent caliber setting after opening a finished caliber for the ineffective passage of preliminary profiles in a universal Carrier line with a finishing stand arranged directly behind a reversing stand group according to DE-A-25 34 647, in which this problem was addressed as not easily solvable with modern control technology.
  • the setting value of the coarse electromechanical settings is reproduced by displacement sensors bar. This calibration process is repeated at several different pressures in the fine adjustment cylinders. The resulting different position values of the fine adjustments result in the (horizontal and vertical) scaffold spring characteristics, which are stored electronically. The position setpoints for the electromechanical coarse adjustments are saved separately for each stitch plan according to the respective stitch plans. The hydraulic pressures in the adjustment cylinders of the fine adjustments can be reproduced by pressure or rolling force sensors and are saved as a zero value according to the previous calibration.
  • the pressure force-dependent deviations from the zero value are measured in the hydraulic fine adjustments, and depending on the assigned stand characteristic curve, the setpoints for the position control of the hydraulic fine adjustments are corrected to compensate for changes in the stand suspension that depend on the profile or rolling stock.
  • a hydraulic displacement control depending on the rolling force for each roller ensures that the desired and reproducible roller setting is maintained regardless of changes in the rolling force.
  • the setpoint values for the rough electromechanical adjustments are corrected according to the roller grinding performed.
  • the universal carrier train shown in Fig. 1 consists of the two universal rolling stands R and F and a compression stand E arranged between these stands.
  • the three rolling stands are arranged in close succession and form a so-called universal compact rolling stand group, which is operated in a reversing manner , as indicated by the double arrow T.
  • the beams are rolled out of a preliminary profile in several reversing passes in the universal stand R and the upsetting stand E until the final pass is carried out in the universal finishing stand F as the last pass.
  • the finished caliber of the finishing stand F, formed by the rollers 1 to 4 is open until the finished stitch for the ineffective passage of preliminary profiles.
  • the adjusting device according to the invention according to FIG. 2 enables the rollers to be quickly adjusted to the desired finished caliber without the need to determine the setting data for the finished caliber by means of a test run with one or more test bars.
  • both the upper horizontal roller 1 and the lower roller 2 each have an electromechanical rough adjustment 8. 9 assigned, which are symbolically indicated by double arrows and are state of the art in their constructive training. This also applies to the coarse electromechanical positions 10 and 11 for the vertical rollers 3 and 4.
  • the respective position of the horizontal rollers 1, 2 is resp. 13 monitors, which are indicated by scales.
  • the position of the vertical rollers 3, 4 is monitored in the same way by displacement sensors 14 or 15.
  • the upper horizontal roller 1 are two hydraulic control cylinders respectively. Fine adjustments 16 and 17 with pistons 18 and 19 assigned. Likewise, the vertical rollers 3, 4 are hydraulic fine adjustments 20. 21 with piston 22 respectively. 23 assigned. The position of the pistons relative to the cylinders is monitored by two displacement sensors per cylinder, namely the displacement sensors 24, 25 are used to monitor the fine adjustments 16, 17, whereas the displacement sensors 26, 27 are used for the fine adjustments 20. 21 monitor.
  • the rolling force exerted by the horizontal rollers 1, 2 on the rolling profile 32 is caused by rolling force sensors. Pressure transducers 28 and 29 measured. The rolling forces exerted by the vertical rollers 3, 4 are determined via pressure transmitters 30 and 31.
  • all actual position, pressure and rolling force values which are supplied by the sensors 12 to 15 and 24 to 31, can be stored and reproduced in an electronic control device.
  • the hydraulic fine adjustments 16, 17, 20 and 21 are controlled, i.e.
  • the finishing stand F according to FIG. 1 is connected to an automatic roll gap control system for both the horizontal rolls and the vertical rolls.
  • a preliminary profile is rolled out in the two stands R and E of the universal compact rolling mill group according to FIG. 1 in reversing operation, the finished caliber in the finishing stand F being wide open for the ineffective passage of rolling stock.
  • the data relevant to the stitch-based roll setting are reproduced or reproduced by the electronic control device. accessed so that the rollers 1 to 4 are electromechanically and hydraulically delivered to the desired finished caliber.
  • the preset target values match the actual values that occur so that the more precisely the target target values could be specified, the more likely it is that a finished product with tolerances can be expected.
  • the adjusting device also takes into account roughing tolerances, temperature differences and changing rolling stock quality by measuring deviations from the zero values of the hydraulic pressures during the finishing pass, determining the corresponding change in the scaffold suspension in the control device on the basis of the saved scaffold suspension characteristic curves, and changing the scaffold Suspension to correct the zero position value of the hydraulic fine adjustments 16, 17 or 20.21 is used. With this corrected setpoint, the desired reproducible roll setting is maintained by hydraulic displacement control for rolls 1, 3 and 4 regardless of changes in rolling force.
  • the finished caliber has to be set quickly in order to carry out the finishing pass, it may take a considerable amount of time until the rough electromechanical adjustments, which usually consist of threaded spindles and nuts, travel their way to have. Provision can therefore be made for the electromechanical rough adjustments for closing the previously opened finished caliber to be actuated successively already during the reversing stitch in the reversing roll stand group R, E.
  • the adjusting device according to the invention can also be used in universal rolling stands that do not perform the finish stitch. Since predefined stitch schedules are implemented more precisely, the number of stitches required can be reduced and production increased.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Vehicle Body Suspensions (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Claims (4)

1. Dispositif de réglage pour une cage de laminage universelle comportant deux cylindres de réglage hydrauliques (16, 17) pour au moins un cylindre horizontal (1), ainsi que deux cylindres verticaux (3,4) équipés chacun d'un moyen de réglage grossier (10, 11) électromécanique,
caractérisé
- en ce qu 'au moins l'un des cylindres horizontaux (1) et les deux cylindres verticaux (3, 4) sont équipés d'un moyen de réglage fin hydraulique (16, 17; 20, 21) et tous les cylindres munis d'un réglage fin hydraulique (1, 3, 4) sont équipés d'un moyen de réglage grossier électromécanique (8-11) qui est commandable indépendamment du moyen de réglage fin;
- en ce que les moyens électromécaniques de réglage grossier ainsi que les moyens hydrauliques de réglage fin sont controlés en position par des palpeurs (12-15; 24-27) et les moyens de réglage fin sont, en plus controlés par des sondes de pression et/ou de force de laminage (28-31
- en ce que les moyens hydrauliques de réglage fin sont dimensionnés par le réglage et l'écartement des cylindres sous l'action de la pression;
- en ce que toutes les valeurs réel les de positionnement, de pression et/ou de laminage sont mémorisables et réproducti- bles dans un dispositif de commande électronique; et
- en ce que les moyens hydrauliques de réglage fin (16, 17; 20, 21) sont commandés en déplacement.
2. Dispositif de réglage selon la revendication 1,
caractérisé par l'utilisation dans le cas d'un groupe de cages universel les compacte (F, E) agencé immédiatement en amont d'une cage de finition universel le (F), en vue de l'ouverture grande et rapide du calibre de finition à l'aide des moyens électromécaniques de réglage grossier (8-11) pour le passage à vide d'ébauches et en vue de la fermeture du calibre de finition pour la passe de finition.
3. Dispositif de réglage selon la revendication 2,
caractérisé en ce que les moyens électromécaniques de réglage grossier (8-11) sont déjà actionnables successivement pendant les passes inversées dans le groupe de cages réversibles (RE), en vue de la fermeture du calibre de finition ouvert au préalable.
4. Procédé pour l'exploitation d'un dispositif de réglage équipé d'un dispositif de commande selon la revendication 1,
caractérisé par les caractéristiques suivantes :
a) on détermine et mémorise électronique- ment, dans une étape d'étalonnage à répéter à intervalles de temps, avec les cylindres (1, 3, 4) positionnés au calibre zéro, sous réglage de diverses pressions hydrauliques moyennes à prévoir en fonction des passes prévues et à partir des positions qui en résultent des moyens de réglage fin (16, 17, 20, 21), les courbes caractéristiques de détente de cage à partir de déformations fonction de la pression, tant pour les forces horizontales que pour les forces verticales, toutes les valeurs de positionnement et de pression obtenues dans les conditions d'étalonnage étant annulées électronique- ment,
b) après l'étalonnage, on mémorise de façon reproductible les valeurs de consigne de positionnnement pour les moyens élec- tromécaniquesde réglage grossier (8-11) en fonction des passes voulues et les pressions hydrauliques et courses dépendant des passes voulues,
c) on reproduit, avant chaque passe initiale du produit à laminer, les données importantes pour le réglage des cycylindres en fonction des passes prévues, c'est-à-dire on po- sitionnne les cylindres (1, 3, 4) électroméca- niquement et hydrauliquement sur le calibre voulu,
d) pendant l'opération de laminage, on mesure les écarts de la valeur zéro des pressions hydrauliques, on détermine dans le dispositif de commande la variation correspondante de la détente élastique de cage à partir de la courbe caractéristique de détente de cage mémorisée et on utilise la détente de cage modifiée pour corriger la valeur zéro du positionnement des moyens hydrauliques de réglage fin, cette valeur étant maintenue constante comme valeur de consigne par le dispositif de commande hydraulique.
EP88100096A 1987-01-23 1988-01-07 Dispositif de réglage pour une cage de laminoir universelle Expired - Lifetime EP0275875B2 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88100096T ATE69743T1 (de) 1987-01-23 1988-01-07 Anstellvorrichtung fuer ein universalwalzgeruest.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3701889 1987-01-23
DE3701889 1987-01-23

Publications (4)

Publication Number Publication Date
EP0275875A2 EP0275875A2 (fr) 1988-07-27
EP0275875A3 EP0275875A3 (en) 1988-12-07
EP0275875B1 true EP0275875B1 (fr) 1991-11-27
EP0275875B2 EP0275875B2 (fr) 1997-03-19

Family

ID=6319361

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88100096A Expired - Lifetime EP0275875B2 (fr) 1987-01-23 1988-01-07 Dispositif de réglage pour une cage de laminoir universelle

Country Status (9)

Country Link
US (1) US4918964A (fr)
EP (1) EP0275875B2 (fr)
JP (1) JPH07100164B2 (fr)
KR (1) KR940010442B1 (fr)
CN (1) CN1012562B (fr)
AT (1) ATE69743T1 (fr)
DE (1) DE3866360D1 (fr)
ES (1) ES2028137T5 (fr)
RU (1) RU2018386C1 (fr)

Families Citing this family (22)

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DE3806063C2 (de) * 1988-02-26 1996-10-17 Schloemann Siemag Ag Verfahren und Vorrichtung zur Steg- und Flanschdickenregelung in Universalgerüsten
DE3834587A1 (de) * 1988-10-11 1990-04-12 Schloemann Siemag Ag Verfahren und vorrichtung zur einstellung und zur veraenderung der hoehe der durchlaufebene des walzgutes durch walzen der walzgerueste eines formstahlwalzwerkes
EP0399296B1 (fr) * 1989-05-24 1993-08-11 Sms Schloemann-Siemag Aktiengesellschaft Justification automatique d'un laminoir universel après le changement des cylindres pour les profils neufs
DE3942452A1 (de) * 1989-12-22 1991-06-27 Schloemann Siemag Ag Ermittlung der federkennlinie eines vor- und fertiggeruestes
ES2106207T3 (es) * 1992-02-26 1997-11-01 Danieli Off Mecc Bastidor de laminacion universal.
IT1281601B1 (it) * 1996-01-09 1998-02-20 Innocenti Eng Spa Dispositivo di regolazione bilanciata della posizione dei rulli in gabbie a due rulli di lavoro per laminatoi longitudinali
JP3177456B2 (ja) * 1996-10-04 2001-06-18 富士重工業株式会社 塗装樹脂製品の塗膜剥離装置
JPH10235419A (ja) * 1997-02-25 1998-09-08 Kawasaki Steel Corp ユニバーサル圧延機によるｈ型鋼の圧延制御方法
DE19714216A1 (de) * 1997-04-07 1998-10-08 Schloemann Siemag Ag Walzenstraße zum Walzen von Flachstahl
US6041632A (en) 1997-09-10 2000-03-28 Kawasaki Steel Corporation Pipe forming roll apparatus and method
CN1168549C (zh) * 1998-04-15 2004-09-29 新日本制铁株式会社 工字钢轧制设备用多功能轧机及使用该轧机的轧制方法
DE19964042A1 (de) * 1999-12-30 2001-07-05 Sms Demag Ag Kalibrierverfahren für ein Universalwalzgerüst
ITMI20011860A1 (it) * 2001-09-04 2003-03-04 Danieli Off Mecc Gabbia di laminazione universale con controllo di luce dei cilindri
KR100779674B1 (ko) * 2001-12-21 2007-11-26 재단법인 포항산업과학연구원 슬라브 압하시 압하 조절장치
CN101954483A (zh) * 2009-07-21 2011-01-26 上海六晶金属科技有限公司 粉末轧制生板坯切头的方法
IT1397191B1 (it) * 2009-12-01 2013-01-04 Siemens Vai Metals Tech Srl Treno universale reversibile compatto per la produzione di profili medio grandi.
WO2013041083A2 (fr) * 2011-09-23 2013-03-28 Sms Meer Gmbh Installation et procédé de laminage
CN110434491A (zh) * 2019-08-29 2019-11-12 佛山汇百盛激光科技有限公司 一种锯条激光切割机
JP6992032B2 (ja) * 2019-10-25 2022-01-13 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 圧延機
CN113399475B (zh) * 2021-05-31 2022-04-22 武汉钢铁有限公司 轧机轧制压力测量方法
CN113617855B (zh) * 2021-07-16 2023-02-17 太原科技大学 一种轧机控制方法以及***
CN115846416B (zh) * 2023-02-08 2023-05-09 厦门航天思尔特机器人***股份公司 一种金属压轧机换辊调整装置

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GB1053141A (fr) * 1960-03-14
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DE2307856C3 (de) * 1973-02-17 1976-01-08 Schloemann-Siemag Ag, 4000 Duesseldorf Kurzhubige Kolben-Zylinder-Einheit an einem Walzgerüst
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GB2024683B (en) * 1978-07-14 1982-06-23 Innocenti Santeustacchio Spa Rolling mill screwdown assembly incorporating hydrostatic guide
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GB8613353D0 (en) * 1986-06-03 1986-07-09 Davy Mckee Sheffield Roll adjustment method

Also Published As

Publication number Publication date
JPH07100164B2 (ja) 1995-11-01
ATE69743T1 (de) 1991-12-15
KR940010442B1 (ko) 1994-10-22
RU2018386C1 (ru) 1994-08-30
CN1012562B (zh) 1991-05-08
EP0275875A3 (en) 1988-12-07
ES2028137T5 (es) 1997-05-16
ES2028137T3 (es) 1992-07-01
JPS63194806A (ja) 1988-08-12
US4918964A (en) 1990-04-24
KR880008840A (ko) 1988-09-13
CN88100672A (zh) 1988-11-09
EP0275875A2 (fr) 1988-07-27
EP0275875B2 (fr) 1997-03-19
DE3866360D1 (de) 1992-01-09

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