EP0275875B2 - 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
EP0275875B2
EP0275875B2 EP88100096A EP88100096A EP0275875B2 EP 0275875 B2 EP0275875 B2 EP 0275875B2 EP 88100096 A EP88100096 A EP 88100096A EP 88100096 A EP88100096 A EP 88100096A EP 0275875 B2 EP0275875 B2 EP 0275875B2
Authority
EP
European Patent Office
Prior art keywords
hydraulic
stand
screw
rolling
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.)
Expired - Lifetime
Application number
EP88100096A
Other languages
German (de)
English (en)
Other versions
EP0275875A3 (en
EP0275875B1 (fr
EP0275875A2 (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
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, 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
Application granted granted Critical
Publication of EP0275875B1 publication Critical patent/EP0275875B1/fr
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.
  • a device according to this type is already known from JP-PS 56-109 101. However, it is not disclosed here how the generally mentioned job works.
  • US Pat. No. 4,127,997 discloses an adjusting device for a cassette universal stand which can be preset in the roller workshop by means of rough mechanical adjustments, but which only permits fine adjustment during operation. It is not possible to open and adjust over large advance paths during the rolling process with this adjusting device. In addition, this adjustment device must be preset with the help of test sticks, but the use of test sticks is time-consuming and cumbersome.
  • 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 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 inventive 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 coarse 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 is 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.
  • the invention is intended for finishing stands, namely for the reproducible, rolling program-dependent caliber setting after opening a finished caliber for the ineffective passage of pre-profiles in a universal carrier line with immediate behind a reversing scaffolding group arranged scaffolding according to DE-A-25 34 647, in which this problem was addressed as not easily solvable with modern control technology.
  • the rolls are moved to zero roll gap (roll kissing) with the electromechanical rough adjustment in the roll stand or to a defined roll gap with calibration pieces.
  • the scaffolding and adjusting parts lying in the horizontal and vertical force course are set with a pressure under compressive stress by pressure increases in the adjusting cylinders, which corresponds to a mean theoretically expected rolling force according to the stitch schedule.
  • the setting value of the coarse electromechanical settings can be reproduced using displacement sensors. 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 deviations dependent on the rolling force are measured from the zero value 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 target setpoints of the electromechanical coarse adjustments are corrected according to the roller grinding performed.
  • the universal carrier train shown in Fig. 1 consists of the two universal roll stands R and F and a compression stand E arranged between these stands.
  • the three roll stands are arranged in close succession and form a so-called universal compact roll stand group, which is operated in a reversing manner, such as indicated by the double arrow T.
  • the beams are rolled in the universal stand R and the upsetting stand E from a preliminary section in several reversing passes 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 opened until the finished stitch for the ineffective passage of preliminary profiles.
  • the adjusting device according to the invention according to Figure 2 makes it possible to quickly set the rollers to the desired finished caliber without the need for 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 is assigned two hydraulic control cylinders or fine adjustments 16 and 17 with pistons 18 and 19.
  • 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 transducers per cylinder, and the displacement transducers 24, 25 are used to monitor the fine adjustments 16, 17, whereas the displacement transducers 26, 27 respectively control 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.
  • the adjusting device with the electronic control device is operated according to the following working method: A calibration process must be carried out at intervals, especially after the rollers have been ground. For this purpose, all rolls are moved together to zero caliber by actuating the coarse electromechanical positions 8 to 11. Then 16.17 different stitch schedules are added in the hydraulic fine adjustments expected mean hydraulic pressures are set, whereby the roll stands, not shown, come under tension and spring up or. to stretch. The deformations adequate for the various hydraulic pressures set are determined by the displacement sensors 24, 25 of the fine adjustments 16, 17, the associated pressures respectively. Forces from the load cells 28.29 are registered.
  • the stand-up characteristic curve for the horizontal force curve is also determined by setting the hydraulic pressures in the fine adjustments 20, 21 for the vertical rolls 3, 4 to various mean values to be expected according to the stitch schedule, whereby the vertical rolls are increasingly against the end faces of the horizontal rolls 1, 2 be pressed.
  • the roll stand frames, not shown, are increasingly stretched to accommodate the forces exerted by 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 finish stitch is to be carried out, the for the stitch-based roller adjustment relevant data from the electronic control device reproduced resp. accessed so that the rollers 1 to 4 are electromechanically and hydraulically fed to the desired finished caliber.
  • the preset target values agree with the actual values that occur so that the more precisely the target target values could be specified, the more likely a finished product with tolerances can be expected.
  • the adjusting device also takes into account pre-rolling tolerances, temperature differences and changing rolling stock quality by measuring deviations from the zero values of the hydraulic pressures during the finish pass, determining the corresponding change in the scaffold springing on the basis of the stored scaffold springing characteristics and the changed scaffold Suspension for correcting 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 to carry out the finishing pass, it may take a considerable amount of time before 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 during the reversing stitch in the reversing roll stand group R, E.

Landscapes

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

Claims (3)

  1. Dispositif de réglage pour une cage de laminage universelle (F) d'un groupe de cages universelles compacte (F-E-R) constitué par les cages de laminage universelles (R et F) et une cage refouleuse (E) agencée entre celles-ci, cage de laminage universelle (F) comportant des cylindres horizontaux (1,2) ainsi que deux cylindres verticaux (3,4), caractérisé en ce
    (i) qu'au moins un cylindre horizontal (1,2) comporte deux cylindres de réglage hydrauliques (16,17) et les deux cylindres verticaux (3,4) comportent chacun un cylindre de réglage hydraulique (20,21);
    (ii) qu'une combinaison de moyens de réglage grossier électromécaniques (8-11) et de moyens de réglage fin hydrauliques (16,17;20,21) est chaque fois associée au cylindre horizontal (1) ainsi qu'aux deux cylindres verticaux (3,4), chaque fois en relation avec un équipement de mesure et de réglage, muni de palpeurs (12-15;24-27) et de sondes de force de laminage (28-31);
    (iii) que les moyens de réglage fin hydrauliques (16,17;20,21) sont commandés en déplacement;
    (iv) que les moyens de réglage fin hydrauliques (16,17;20,21) pour le positionnement et l'ouverture des cylindres (1-4) consistent en des unités à piston et cylindre à double effet de pression;
    (v) que toutes les valeurs réelles de positionnement, de pression et/ou de force de laminage sont mémorisables et reproductibles dans un dispositif de commande électronique;
    (vi) que les moyens électromécaniques de réglage grossier (8-11) et les moyens hydrauliques de réglage fin (16,17;20,21) sont commandables indépendamment l'un de l'autre; et
    (vii) que les moyens de réglage grossier (8-11) sont déjà commandables successivement pendant les passes inversées dans le groupe de cages réversibles (R,E) du train de laminage universel, en vue de la fermeture du calibre de finition ouvert au préalable.
  2. Dispositif de réglage selon la revendication 1, caractérisé par l'utilisation dans le cas d'un groupe de cages réversibles (R,E) agencé immédiatement en amont d'une cage de finition universelle (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. 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 électroniquement, 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 électroniquement,
    b) après l'étalonnage, on mémorise de façon reproductible les valeurs de consigne de positionnement pour les moyens électromécaniques de 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 cylindres en fonction des passes prévues, c'est-à-dire on positionne les cylindres (1,3,4) électromécaniquement 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 EP0275875B1 (fr) 1991-11-27
EP0275875B2 true 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
WO1999054064A1 (fr) * 1998-04-15 1999-10-28 Nippon Steel Corporation Laminoir multifonctions pour laminer des profiles en h, equipement et procede correspondants
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系统
CN115846416B (zh) * 2023-02-08 2023-05-09 厦门航天思尔特机器人系统股份公司 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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GB8613353D0 (en) * 1986-06-03 1986-07-09 Davy Mckee Sheffield Roll adjustment method

Also Published As

Publication number Publication date
ATE69743T1 (de) 1991-12-15
EP0275875A3 (en) 1988-12-07
ES2028137T5 (es) 1997-05-16
KR880008840A (ko) 1988-09-13
US4918964A (en) 1990-04-24
ES2028137T3 (es) 1992-07-01
CN88100672A (zh) 1988-11-09
KR940010442B1 (ko) 1994-10-22
DE3866360D1 (de) 1992-01-09
JPH07100164B2 (ja) 1995-11-01
EP0275875B1 (fr) 1991-11-27
CN1012562B (zh) 1991-05-08
JPS63194806A (ja) 1988-08-12
EP0275875A2 (fr) 1988-07-27
RU2018386C1 (ru) 1994-08-30

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