WO2003045598A1 - Reglage de position inclinee - Google Patents

Reglage de position inclinee Download PDF

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Publication number
WO2003045598A1
WO2003045598A1 PCT/DE2002/004283 DE0204283W WO03045598A1 WO 2003045598 A1 WO2003045598 A1 WO 2003045598A1 DE 0204283 W DE0204283 W DE 0204283W WO 03045598 A1 WO03045598 A1 WO 03045598A1
Authority
WO
WIPO (PCT)
Prior art keywords
bending
inclined position
drive
cylinders
controller
Prior art date
Application number
PCT/DE2002/004283
Other languages
German (de)
English (en)
Inventor
Andreas Maierhofer
Original Assignee
Siemens Aktiengesellschaft
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 Siemens Aktiengesellschaft filed Critical Siemens Aktiengesellschaft
Priority to EP02792602A priority Critical patent/EP1448321B1/fr
Priority to DE50206930T priority patent/DE50206930D1/de
Publication of WO2003045598A1 publication Critical patent/WO2003045598A1/fr

Links

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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • B21B2013/025—Quarto, four-high stands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2203/00—Auxiliary arrangements, devices or methods in combination with rolling mills or rolling methods
    • B21B2203/18—Rolls or rollers
    • B21B2203/187—Tilting rolls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B29/00—Counter-pressure devices acting on rolls to inhibit deflection of same under load, e.g. backing rolls ; Roll bending devices, e.g. hydraulic actuators acting on roll shaft ends
    • 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
    • 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

Definitions

  • the invention relates to a device and a method for adjusting the inclined position of work or drive rolls of a rolling stand, in particular for cold strip rolling mills, wherein at least one bending cylinder and one servo valve is provided on the working and on the operating side of the rolling stand, or where the Bending of the drive rollers is controlled via a bending control loop on the drive and operator side.
  • a control method for a roll stand for rolling a strip is known from DE-OS 196 18 712.
  • the control procedure described here uses a roll bending model to determine setpoints for the rolling force, the rebending force and the roll displacement on the roll stand.
  • the roll gap is mainly driven over the employment.
  • the modern version consists of two hydraulic cylinders with the appropriate electrical equipment such as sensors and valves. The latter adjust the roll gap over half the roll set.
  • the second half of the roll set is set for rolling operation.
  • the setting options are the position or rolling force and the inclined position.
  • the position or rolling force essentially serves for the take-off ("rolling"), the inclined position essentially for the reproduction of the strip profile.
  • the inclined position is also an actuator for correcting the band.
  • the disadvantage of this procedure is that the roll gap is not moved directly, but rather this is done via the coupling roll-roll package. This can lead to not inconsiderable inaccuracies which, for example, make it impossible to control a belt run. It is an object of the invention to improve the problems described above and to reduce the disadvantages shown.
  • the object is achieved on the one hand by a device of the type mentioned at the outset, a servo valve being provided on the working side and on the operating side of the roll stand, and position sensors being provided for detecting the change in travel caused by the bending cylinders.
  • the object is achieved by a method of the type mentioned at the outset, the inclination control being carried out with the aid of the bending control loop.
  • the position sensors are advantageously mounted in or on the bending cylinders. In this way, the path change caused by the bending cylinders can be recorded particularly precisely.
  • the above-mentioned object is also achieved by a method for adjusting the inclined position of drive rollers of a rolling stand, in particular for cold strip mills, with a bending control loop for the drive and operating side of the rolling stand, the change in travel caused by the bending cylinders being fed to an inclined position controller as the actual value and the manipulated variable formed by the inclined position controller from the difference between the setpoint and actual value is transferred to the bending control loop on the drive side and, with the opposite sign, to the bending control loop on the operating side.
  • FIG. 1 shows a schematic representation of a roll stand.
  • the nip 106 is limited by the drive rollers 105a, 105b.
  • Support rollers 104a, 104b are preferably arranged above or below the drive rollers 105a, 105b.
  • positioning cylinders 101a, 101b are provided above or below the rollers 104a, 104b, 105a, 105b, with the aid of which the adjustment of the rollers 104a, 104b, 105a, 105b can be influenced.
  • a bending cylinder 102a, 102b is provided on both the working side and the operating side of the roll stand. Alternatively, more than one bending cylinder 102a or 102b can be provided on each side of the roll stand.
  • the bending cylinders 102a, 102b are preferably controlled by valves.
  • the roll stand also has position sensors 103a, 103b, which can be integrated in the bending cylinders 102a or 102b or can be provided separately. It is essential for the invention that sensors and actuators are present in the roll gap area.
  • the roll bending can preferably be influenced separately on the working or operating side, since position sensors 103a, 103b each indicate an actual position value.
  • FIG. 2 shows a block diagram of a roll gap inclination control.
  • an inclined position controller 205 is superordinate to a roll bending control circuit 210.
  • the actuators of the roller Bending control circuit 210 are the two bending controls on the drive and operator side.
  • the difference between setpoint value 203 and actual value 204 of the inclined position is fed to the inclined position controller 205.
  • the setpoint incline value 203 is preferably determined from data 201 which is input by an operator or supplied by a data processing device.
  • the data 202 for determining the actual value of the inclined position 204 preferably comes from position sensors 103a, 103b (see FIG. 1), which are advantageously arranged in the bending cylinder 102a, 102b (see FIG. 1).
  • the output of the inclination controller 205 is connected to a tracking 206 and influences the setting 207. Furthermore, the output of the inclination controller 205 is connected to the roll bending control circuit 210, which is described in more detail below.
  • the roller bending control circuit 210 preferably has, in particular for regulating the bending of the drive rollers 105a, 105b (see FIG. 1), a bending control circuit on the drive side with a controller 215 and a valve 217 and a bending control circuit on the operator side with a controller 216 and a valve 218.
  • the outputs of the inclined position controller 205 are fed to the bending control loop of the drive or the bending control loop of the operating side, preferably with the opposite sign as an additional setpoint.
  • the direct setpoint data which are preferably based on data such as empirical value data from data processing or data storage devices, tables or operator inputs, are also taken into account for the setpoint determination on the drive side 211 or for the setpoint determination.
  • An actual value 213 or 214 is generated from the respectively determined setpoint 211 or 212 for both the drive and the operating side a measure of the measured bending force, subtracted and fed to the controller 215 or 216, which controls the valve 217 or 218.
  • An adjustment of the roll gap inclined position is achieved by the arrangement or procedure described above.
  • the difference to conventional concepts is in particular the adjustment of the roll gap inclination with the help of a new controller which uses the roll gap sensors 103a, 103b (see FIG. 1) as the actual value and carries out the corrections via the bending control circuit 210.
  • the known incline position controller is now preset and then updated again and again when the new controller is active.
  • FIG. 3 shows a further advantageous embodiment of an inclined position control in a cascade structure.
  • a position controller 203 is supplied, on the one hand, with the sum of all of the desired slant position values 302 and, on the other hand, with a negative sign, the actual value 303 of the inclined position, which is preferably determined in the roll gap with the aid of position sensors 103a, 103b (see FIG. 1).
  • the output of the position controller 301 is connected to a further computing module 309, which preferably has an integrating element, with the aid of which a setpoint 310 for the inclined position control is determined, which is used via a hydraulic adjustment.
  • the output of the position controller 301 is connected to a bending controller 305 for the drive side and a bending controller 306 for the operating side. The latter is supplied with the output of the position controller 301 with a negative sign.
  • a bending setpoint 304 is also fed to the two bending controllers 305, 306.
  • the bending setpoint 305 is a measure of the bending force desired on the roll stand.
  • the bending controllers 305, 306 are connected to servo valves 307 and 308 for the drive side and for the operator side, respectively.
  • a parallel structure as shown in FIG. 4, can also be used.
  • a bending controller 407 receives setpoint data 403 or actual value data 404 for bending control.
  • the inclination position controller 408 is supplied with the sum of all the inclination setpoint values 405 and the corresponding actual value data 406.
  • the output of the bending regulator 407 is connected to at least one control valve 411.
  • the output of the inclination controller 408 is connected to the control valve 412 and additionally to a computing module 409 for determining a setpoint 410 for the inclination control via hydraulic adjustment.
  • the output of the inclined position controller 408 is advantageously fed to the at least one control valve 411 with a negative sign, while the output of the bending controller 407 is advantageously fed to the control valve 412.
  • a bending setpoint for the drive side 501 is fed to a controller for the drive side 505.
  • the actual bending value for the drive side 502 is fed to the controller 505 with a negative sign.
  • the bending setpoint for the operating side 503 is fed to a controller for the operating side 506.
  • the actual bending value for the operating side 504 is fed to the controller 506 with a negative sign.
  • the controllers 505 and 506 are connected to valves 507 and 508, respectively.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Optical Communication System (AREA)
  • Forklifts And Lifting Vehicles (AREA)
  • Optical Recording Or Reproduction (AREA)

Abstract

L'invention concerne un dispositif et un procédé pour régler la position inclinée des cylindres d'entraînement (105a, 105b) d'une cage de laminoir, au moins un cylindre de cintrage (102a, 102b) et une servo-valve (217, 218) étant disposés sur chacune des faces de travail et de commande de la cage de laminoir. Des transmetteurs de position (103a, 103b) servent à saisir le changement de trajectoire provoqué par les cylindres de cintrage (102a, 102b) et le régleur de position oblique classique, qui coopère avec le cylindre de réglage (101a, 101b), est asservi pour conserver une réserve lors du réglage de cintrage. Il est ainsi possible de réaliser un réglage précis de la position inclinée sur les blocs de cintrage autour du point de travail. Contrairement aux concepts usuels, la mise au point de la position inclinée de l'emprise est réalisée au moyen d'un nouveau régulateur, qui utilise les indicateurs d'emprise comme valeurs nominales et exécute les corrections au moyen du circuit régulateur de cintrage (210).
PCT/DE2002/004283 2001-11-23 2002-11-21 Reglage de position inclinee WO2003045598A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP02792602A EP1448321B1 (fr) 2001-11-23 2002-11-21 Reglage de position inclinee
DE50206930T DE50206930D1 (de) 2001-11-23 2002-11-21 Schräglagenregelung

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10157333 2001-11-23
DE10157333.2 2001-11-23

Publications (1)

Publication Number Publication Date
WO2003045598A1 true WO2003045598A1 (fr) 2003-06-05

Family

ID=7706606

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2002/004283 WO2003045598A1 (fr) 2001-11-23 2002-11-21 Reglage de position inclinee

Country Status (4)

Country Link
EP (1) EP1448321B1 (fr)
AT (1) ATE327059T1 (fr)
DE (1) DE50206930D1 (fr)
WO (1) WO2003045598A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100413610C (zh) * 2005-11-30 2008-08-27 宝山钢铁股份有限公司 一种防止带钢在热轧过程中出现头部弯曲的控制方法
US8869577B2 (en) 2011-06-07 2014-10-28 Sms Siemag Ag Measuring device, roll stand and method of detecting the height of a roll gap
US20210220885A1 (en) * 2016-03-08 2021-07-22 Novelis Inc. Method and apparatus for controlling metal strip profile during rolling with direct measurement of process parameters

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739010A (en) * 1980-08-22 1982-03-04 Ishikawajima Harima Heavy Ind Co Ltd Rolling mill
JPS5881505A (ja) * 1981-11-11 1983-05-16 Mitsubishi Heavy Ind Ltd 圧延機のロ−ル形状及び蛇行制御装置
JPS59212108A (ja) * 1983-05-17 1984-12-01 Sumitomo Metal Ind Ltd 板形状の制御方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5739010A (en) * 1980-08-22 1982-03-04 Ishikawajima Harima Heavy Ind Co Ltd Rolling mill
JPS5881505A (ja) * 1981-11-11 1983-05-16 Mitsubishi Heavy Ind Ltd 圧延機のロ−ル形状及び蛇行制御装置
JPS59212108A (ja) * 1983-05-17 1984-12-01 Sumitomo Metal Ind Ltd 板形状の制御方法

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
GUO R-M: "PREDICTION OF STRIP PROFILE IN ROLLING PROCESS USING INFLUENCE COEFFICIENTS AND BOUSSINESQ'S EQUATIONS", TRANSACTIONS OF THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS, SERIES B: JOURNAL OF ENGINEERING FOR INDUSTRY, ASME. NEW YORK, US, VOL. 119, NR. 2, PAGE(S) 220-226, ISSN: 0022-0817, XP000696396 *
PATENT ABSTRACTS OF JAPAN vol. 006, no. 109 (M - 137) 19 June 1982 (1982-06-19) *
PATENT ABSTRACTS OF JAPAN vol. 007, no. 179 (M - 234) 9 August 1983 (1983-08-09) *
PATENT ABSTRACTS OF JAPAN vol. 009, no. 084 (M - 371) 13 April 1985 (1985-04-13) *

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100413610C (zh) * 2005-11-30 2008-08-27 宝山钢铁股份有限公司 一种防止带钢在热轧过程中出现头部弯曲的控制方法
US8869577B2 (en) 2011-06-07 2014-10-28 Sms Siemag Ag Measuring device, roll stand and method of detecting the height of a roll gap
US20210220885A1 (en) * 2016-03-08 2021-07-22 Novelis Inc. Method and apparatus for controlling metal strip profile during rolling with direct measurement of process parameters
US11858022B2 (en) * 2016-03-08 2024-01-02 Novelis Inc. Method and apparatus for controlling metal strip profile during rolling with direct measurement of process parameters

Also Published As

Publication number Publication date
ATE327059T1 (de) 2006-06-15
DE50206930D1 (de) 2006-06-29
EP1448321A1 (fr) 2004-08-25
EP1448321B1 (fr) 2006-05-24

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