EP2473295B1 - Procédé de réglage des cylindres d'une cage de laminoir et cage de laminoir - Google Patents

Procédé de réglage des cylindres d'une cage de laminoir et cage de laminoir Download PDF

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Publication number
EP2473295B1
EP2473295B1 EP10752302.9A EP10752302A EP2473295B1 EP 2473295 B1 EP2473295 B1 EP 2473295B1 EP 10752302 A EP10752302 A EP 10752302A EP 2473295 B1 EP2473295 B1 EP 2473295B1
Authority
EP
European Patent Office
Prior art keywords
roll
roll stand
stand
rolling
work
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.)
Not-in-force
Application number
EP10752302.9A
Other languages
German (de)
English (en)
Other versions
EP2473295A1 (fr
Inventor
Wolfgang Denker
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 Group GmbH
Original Assignee
SMS 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
Application filed by SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2473295A1 publication Critical patent/EP2473295A1/fr
Application granted granted Critical
Publication of EP2473295B1 publication Critical patent/EP2473295B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • 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
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws
    • 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
    • B21B37/60—Roll-force control; Roll-gap control by control of a motor which drives an adjusting screw
    • 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
    • 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
    • B21B2013/028—Sixto, six-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2267/00—Roll parameters
    • B21B2267/24—Roll wear
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2271/00—Mill stand parameters
    • B21B2271/02—Roll gap, screw-down position, draft position
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49718—Repairing

Definitions

  • the invention relates to a method for adjusting the rolls of a roll stand, wherein the roll stand has at least two cooperating work rolls, wherein one of the work rolls in the rolling stand for adjusting a roll gap is slidably disposed and wherein the other work roll in the rolling stand in a working position rotatable, but to define a Pass line in the direction normal to the surface of the rolling stock is determined immovable. Furthermore, the invention relates to a rolling mill with at least two cooperating work rolls.
  • the rolling stand according to the invention may in particular be a 6-high, a 20-roll or a Z-high rolling stand.
  • the US 5,479,809 or the EP 0 513 946 A2 describe an apparatus for leveling the upper edge of the lower work roll in rolling stands by means of a staircase stepped pair of wedges beneath each lower roll chock.
  • the JP 08-229605 describes a rolling mill with an upper and a lower work roll, which are each formed at their ends with eccentric bushings which are mounted in worm wheels, which are rotated to adjust the roll gap by means of adjusting motors.
  • the upper support roller including work roll for thickness control (adjustment of the roll gap) is moved vertically.
  • the lower support roller remains together with work roll in the once set before rolling start position.
  • the lower work roll is thus firmly on and is underlined for the purpose of accurate positioning with shims or with a movable auxiliary position (wedge or spindle adjustment).
  • tolerance addition imbalances of the rolls of up to 0.5 mm / m can occur by tolerance addition imbalances of the rolls of up to 0.5 mm / m.
  • Such imbalances influence the rolling process with respect to other control circuits, such as the flatness control, since these depend on measured values of the tension distribution over the strip cross section.
  • the present invention is therefore based on the object to provide a method by which it is possible to ensure in a precise manner, the parallelism of the rolls, the manufacturing tolerances and imbalances by different wear, which determines the horizontal position of the rolls can be compensated , which makes the rolling process easier to control.
  • the process is preferably carried out before rolling the rolling stock. It is also recommended after a roll change.
  • the position determination according to step a) above takes place at a reference point of the roll chock of the lower work roll fixedly arranged in the roll stand.
  • step a) above is preferably carried out in both axial end regions of the work roll fixedly arranged in the roll stand.
  • the work rolls are preferably each supported by at least one back-up roll, wherein the adjustment after the above step c) takes place on the back-up roll of the work roll fixedly arranged in the roll stand.
  • the adjustment is preferably carried out on the roll chock of the support roller.
  • step c) The adjustment after the above step c) is further preferably carried out by using a tension or pressure spindle with combined right-left thread. It is also possible, however, the use of shims or Unterlegetechn.
  • the rolling stand with at least two cooperating work rolls, wherein one of the work rolls in the rolling stand for adjusting a roll gap is slidably disposed and wherein the other work roll in the rolling stand in a working position rotatable, but is set immovable to define a pass line in the direction normal to the surface of the rolling characterized in that measuring means are provided for determining the position of the lower work roll fixedly arranged in the roll stand, that comparison means are provided for comparing the determined value of the layer with a desired value and that at least one adjusting element is provided for adjusting the lower work roll fixedly arranged in the roll stand as a function of the difference value between the determined value and the desired value determined by the comparison means.
  • the roll chock has according to the invention a reference point for the measurement by the measuring means.
  • the measuring means can be arranged permanently in the rolling stand or can be arranged exchangeably in the rolling stand for temporary measurement.
  • the adjusting element is preferably a tension or pressure spindle with combined right-left thread.
  • the invention is based on the idea to determine the position of the roll fixedly positioned in the roll stand, to compare this value with a target value and to compensate for the deviation between the actual and target value by an actuator before the rolling stock is rolled.
  • the method is carried out after a roll change.
  • the position of the roll can ideally be tapped on the roll bale, alternatively also at measuring points on the roll chocks.
  • movable or stationary sensors can be used.
  • the actuators can in the simplest form consist of inserts but also from individually adjustable auxiliary positions or from pairwise rotatable right-left threads, which are incorporated in printing or drawing spindles.
  • Such spindles are for rolling mills from the EP 1 601 475 B1 known.
  • the drive or operating side of the rolling stand is moved or underlaid in such a way that the "fixed" roller exactly reaches the setpoint.
  • a rolling stand 5 is outlined, in which a total of four rollers are installed, namely two cooperating work rolls 1 and 2 and two support rollers 3, 4.
  • Each roller 1, 2, 3, 4 is mounted in a chock and fixed in the rolling stand 5 , namely the lower work roll 2 in the chock 7, the lower support roll 4 in the chock 12, the upper work roll 1 in the chock 10 and the upper support roll 3 in the chock 11th
  • the two lower rollers 2 and 4 are arranged "fixed", ie they are set in such a height in the rolling stand 5, that the uppermost point of the work roll 2 forms a pass line P for the (not shown) rolling stock.
  • the lower work roll 2 In order to set a nip between the work rolls 1, 2, consequently, the lower work roll 2 remains in its height position; meanwhile, the upper work roll 1 together with the support roll 3 is moved vertically in the roll stand 5.
  • the determination of the position S Ist is the work roll 2 fixedly arranged in the roll stand 5.
  • a measuring means 8 is arranged in the roll stand 5. More precisely, there are two measuring means 8, which in the region of the two axial ends (s. Fig. 2 ) are provided.
  • a reference point 13 reference point which is measured on the chock 7 (see FIG. Fig. 1 ) is arranged.
  • the measured actual values S actual (or S actual and S actual 2 ) of the position are then compared with a stored nominal value S Soll .
  • a comparison means 9 is used.
  • an adjustment of the work roll 2 in the roll stand 5 then takes place in the vertical direction.
  • at least one, preferably two adjusting elements 6 are used, which are used for height adjustment of the chock 7 of the work roll.
  • Tensioning or pressure spindles 6, which are provided with a combined right and left hand thread, so that upon rotation of the spindle, the two axial end portions of the spindle are moved together or apart.
  • the adjustment is chosen so that the position S of the fixed in the roll stand 5 arranged work roll 2 assumes the target value S Soll .

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)

Claims (15)

  1. Procédé pour le réglage des cylindres (1, 2, 3, 4) d'une cage de laminoir (5), dans lequel la cage de laminoir (5) présente au moins deux cylindres de travail coopérant (1, 2), dans lequel un des cylindres de travail (1) est disposé en mobilité dans la cage de laminoir (5) pour le réglage d'une emprise et dans lequel l'autre cylindre de travail (2) est fixé en rotation dans une position de travail dans la cage de laminoir (5), mais en immobilité dans une direction perpendiculaire à la surface du produit à laminer pour la définition d'une ligne de laminage (P) ; caractérisé en ce que le procédé pour le réglage de la position en hauteur du cylindre de travail inférieur (2) avant le laminage, présente les étapes dans lesquelles :
    a) on détermine la position (Sist) du cylindre de travail inférieur (2) disposé à demeure dans la cage de laminoir (5) avec un moyen de mesure (8) à un endroit de référence (13) de l'empoise de cylindre ;
    b) on compare la valeur déterminée (SIst) de la position à une valeur de consigne (SSoll) ;
    c) on déplace en hauteur le cylindre de travail inférieur (2) disposé dans la cage de laminoir (5), monté dans une empoise (7), en direction verticale en fonction de la valeur de comparaison déterminée conformément à l'étape b) avec au moins un élément de réglage (6) et moyennant le cylindre de support inférieur (4), de telle sorte que la position (S) du cylindre de travail inférieur (2) disposé dans la cage de laminoir (5) atteigne la valeur (SSoll)pour la formation d'une ligne de laminage (P) pour le produit à laminer.
  2. Procédé selon la revendication 1, caractérisé en ce qu'on le met en oeuvre avant le laminage du produit à laminer, en présence ou en l'absence d'un produit à laminer dans la cage.
  3. Procédé selon la revendication 1 ou 2, caractérisé en ce qu'on le met en oeuvre après un échange de cylindre, en présence ou en l'absence d'un produit à laminer dans la cage.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la détermination de la position conformément à l'étape a) selon la revendication 1, a lieu dans les deux zones terminales axiales du cylindre de travail (2) disposé à demeure dans la cage de laminoir (5).
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les cylindres de travail (1, 2) sont supportés respectivement par au moins un cylindre de support (3, 4), le déplacement conformément à l'étape c) selon la revendication 1, ayant lieu contre le cylindre de support (4) du cylindre de travail (2) disposé à demeure dans la cage de laminoir (5).
  6. Procédé selon la revendication 5, caractérisé en ce que le déplacement a lieu contre l'empoise de cylindre (7) du cylindre de support (4).
  7. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le déplacement conformément à l'étape c) selon la revendication 1, a lieu en utilisant une broche de traction ou de pression à filets de vis à droite et à gauche combinés.
  8. Procédé selon l'une quelconque des revendications 1 à 6, caractérisé en ce que le déplacement conformément à l'étape c) selon la revendication 1, a lieu en utilisant des rondelles de serrage ou à épaulement.
  9. Cage de laminoir (5) comprenant au moins deux cylindres de travail coopérant (1, 2) dans lequel un des cylindres de travail (1) est disposé en mobilité dans la cage de laminoir (5) pour le réglage d'une emprise et dans lequel l'autre cylindre de travail (2) est fixé en rotation dans une position de travail dans la cage de laminoir (5), mais en immobilité au cours du laminage dans une direction perpendiculaire à la surface du produit à laminer pour la définition d'une ligne de laminage (P), en particulier pour la mise en oeuvre du procédé selon l'une quelconque des revendications 1 à 8, caractérisée en ce que des moyens de mesure (8) sont présents pour la détermination de la position (SIst) à un endroit de référence (13) du cylindre de travail inférieur (2) disposé à demeure dans la cage de laminoir (5) ; en ce que des moyens de comparaison (9) sont présents pour la comparaison de la valeur déterminée (SIst) de la position à une valeur de consigne (SSoll) ; et en ce qu'un élément de réglage (6) est présent pour le déplacement de l'empoise (7) du cylindre inférieur (2) disposé dans la cage de laminoir (5), en fonction de la valeur de différence déterminée par les moyens de comparaison (9) entre la valeur déterminée (SIst) et la valeur de consigne (SSoll), par lequel, via la position la plus supérieure du cylindre de travail inférieur (2), on peut former une ligne de laminage (P) pour le produit à laminer.
  10. Cage de laminoir selon la revendication 9, caractérisée en ce que les moyens de mesure (8) sont positionnés pour la mesure de la position (SSist) de la table du cylindre de travail (2).
  11. Cage de laminoir selon la revendication 10, caractérisée en ce que l'empoise de cylindre (7) présente un endroit de référence (13) pour la mesure via les moyens de mesure (8).
  12. Cage de laminoir selon l'une quelconque des revendications 9 à 11, caractérisée en ce que les moyens de mesure (8) sont disposés en permanence dans la cage de laminoir (1).
  13. Cage de laminoir selon l'une quelconque des revendications 9 à 11, caractérisée en ce que les moyens de mesure (8) sont disposés de manière à pouvoir être échangés pour la mesure temporaire dans la cage de laminoir (1).
  14. Cage de laminoir selon l'une quelconque des revendications 9 à 13, caractérisée en ce que l'élément de déplacement est une broche de traction ou de pression à filets de vis à droite et à gauche combinés.
  15. Cage de laminoir selon l'une quelconque des revendications 9 à 14, caractérisée en ce que, en ce qui concerne la cage de laminoir, il s'agit d'une cage de laminoir de type 6-high, une cage de laminoir à 20 cylindres ou une cage de laminoir de type Z-high.
EP10752302.9A 2009-08-31 2010-08-25 Procédé de réglage des cylindres d'une cage de laminoir et cage de laminoir Not-in-force EP2473295B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009039501A DE102009039501A1 (de) 2009-08-31 2009-08-31 Verfahren zur Einstellung der Walzen eines Walzgerüsts und Walzgerüst
PCT/EP2010/005207 WO2011023378A1 (fr) 2009-08-31 2010-08-25 Procédé de réglage des cylindres d'une cage de laminoir et cage de laminoir

Publications (2)

Publication Number Publication Date
EP2473295A1 EP2473295A1 (fr) 2012-07-11
EP2473295B1 true EP2473295B1 (fr) 2015-01-21

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ID=43501184

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10752302.9A Not-in-force EP2473295B1 (fr) 2009-08-31 2010-08-25 Procédé de réglage des cylindres d'une cage de laminoir et cage de laminoir

Country Status (6)

Country Link
US (2) US9527121B2 (fr)
EP (1) EP2473295B1 (fr)
CN (1) CN102481609B (fr)
DE (1) DE102009039501A1 (fr)
RU (1) RU2503514C2 (fr)
WO (1) WO2011023378A1 (fr)

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WO2013041083A2 (fr) * 2011-09-23 2013-03-28 Sms Meer Gmbh Installation et procédé de laminage
BR112018015432A2 (pt) * 2016-02-02 2018-12-18 Nippon Steel & Sumitomo Metal Corporation equipamento de detecção de empenamento de placa e método de detecção de empenamento de placa
JP7040611B2 (ja) * 2018-05-18 2022-03-23 日本製鉄株式会社 圧延機及び圧延機の設定方法
CN109604217B (zh) * 2018-12-20 2022-02-15 东风小康汽车有限公司重庆分公司 一种自动调整清洗辊间距的方法及系统
CN112658063B (zh) * 2020-11-19 2023-02-03 首钢京唐钢铁联合有限责任公司 一种矫直机辊盒支撑辊安装精度控制方法

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Also Published As

Publication number Publication date
EP2473295A1 (fr) 2012-07-11
US9527121B2 (en) 2016-12-27
CN102481609B (zh) 2015-02-04
DE102009039501A1 (de) 2011-03-03
RU2503514C2 (ru) 2014-01-10
US20150375283A1 (en) 2015-12-31
US20120151980A1 (en) 2012-06-21
RU2012112225A (ru) 2013-10-10
CN102481609A (zh) 2012-05-30
WO2011023378A1 (fr) 2011-03-03

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