EP2473295A1 - Method for adjusting the rolls of a roll stand and roll stand - Google Patents
Method for adjusting the rolls of a roll stand and roll standInfo
- Publication number
- EP2473295A1 EP2473295A1 EP10752302A EP10752302A EP2473295A1 EP 2473295 A1 EP2473295 A1 EP 2473295A1 EP 10752302 A EP10752302 A EP 10752302A EP 10752302 A EP10752302 A EP 10752302A EP 2473295 A1 EP2473295 A1 EP 2473295A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roll
- stand
- roll 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.)
- Granted
Links
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 rolling of a rolling mill, wherein the rolling mill 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 upper support roller together with the work roll for thickness control (adjustment of the roll gap) to move vertically.
- the lower support roller remains together with work roll in the once set before rolling start position.
- the lower work roll is therefore firmly on and is underlaid for the purpose of accurate positioning with shims or with a mobile Hilfsansannon (wedge or spindle adjustment).
- shims or with a mobile Hilfsansander (wedge or spindle adjustment).
- a mobile Hilfsansander wedge or spindle adjustment
- 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 propose a method with which it is possible to ensure in a precise manner the parallelism of the rolls, wherein the manufacturing tolerances and the imbalances by different wear, which determines the horizontal position of the rolls, can be compensated, whereby the rolling process should be easier to control.
- the solution to this problem by the invention is characterized in that the method comprises the steps of: a) determining the position of the work roll fixedly arranged in the roll stand; b) comparing the determined value of the position with a desired value; c) Adjustment of the work roll fixedly arranged in the roll stand as a function of the comparison value determined according to step b) with at least one control element, so that the position of the work roll fixedly arranged in the rolling stand at least largely reaches the desired value.
- the method is preferably carried out before rolling the rolling stock. It is also recommended after a roll change.
- the position determination according to the above step a) is preferably carried out either on the roll barrel or at a reference point of the roll chock of the fixed roll arranged in the rolling mill.
- 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.
- the adjustment after the above step c) further preferably takes place by using a tension or pressure spindle with combined right-left thread. It is also possible, however, the use of shims or Unterlegeterion.
- the measuring means can be positioned to measure the position of the roll bales of the work roll.
- the roll chock can have a reference point for 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 of determining the position of the roll fixedly positioned in the roll stand, comparing this value with a desired value and compensating for the deviation between actual and desired value by means of 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 known for rolling mills from EP 1 601 475 B1.
- the drive or operating side of the roll stand is moved or underlaid in such a way that the "fixed" roll exactly reaches the desired value.
- Fig. 1 is a side view of a rolling mill with two working and two
- Fig. 2 seen a part of the rolling stand in the rolling direction.
- 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 backup roll 4 in the chock 12, the upper work roll 1 in the chock 10 and the upper backup roll 3 in the chock 11.
- the two lower rolls 2 and 4 are "fixed", ie are set at such a height in the rolling stand 5 that the uppermost point of the work roll 2 forms a pass line P for the rolling stock (not shown) .
- the lower work roll 2 thus remains in its height position; Meanwhile, the upper work roll 1 together with the back-up roll 3 is displaced vertically in the roll stand 5.
- the procedure is as follows:
- a measuring means 8 is arranged in the rolling stand 5. More precisely, these are two measuring means 8, which are provided in the region of the two axial ends (see Fig. 2). For example, and preferably a reference point 13 (reference point), which is arranged on the chock 7 (see FIG. The measured actual values S tst (or Sisti and S ) s t2) of the position are then compared with a stored desired value Ssoii. For this purpose, 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.
- Si st is-position of the work roll
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Metal Rolling (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009039501A DE102009039501A1 (en) | 2009-08-31 | 2009-08-31 | Method for adjusting the rolls of a roll stand and roll stand |
PCT/EP2010/005207 WO2011023378A1 (en) | 2009-08-31 | 2010-08-25 | Method for adjusting the rolls of a roll stand and roll stand |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2473295A1 true EP2473295A1 (en) | 2012-07-11 |
EP2473295B1 EP2473295B1 (en) | 2015-01-21 |
Family
ID=43501184
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10752302.9A Not-in-force EP2473295B1 (en) | 2009-08-31 | 2010-08-25 | Method for adjusting the rolls of a roll stand and roll stand |
Country Status (6)
Country | Link |
---|---|
US (2) | US9527121B2 (en) |
EP (1) | EP2473295B1 (en) |
CN (1) | CN102481609B (en) |
DE (1) | DE102009039501A1 (en) |
RU (1) | RU2503514C2 (en) |
WO (1) | WO2011023378A1 (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013041083A2 (en) * | 2011-09-23 | 2013-03-28 | Sms Meer Gmbh | Rolling mill and rolling method |
CA3012970C (en) * | 2016-02-02 | 2020-06-16 | Nippon Steel & Sumitomo Metal Corporation | Slab warpage detection apparatus and method of detecting warpage of slab |
US11612921B2 (en) * | 2018-05-18 | 2023-03-28 | Nippon Steel Corporation | Rolling mill, and method for setting rolling mill |
CN109604217B (en) * | 2018-12-20 | 2022-02-15 | 东风小康汽车有限公司重庆分公司 | Method and system for automatically adjusting cleaning roller spacing |
CN112658063B (en) * | 2020-11-19 | 2023-02-03 | 首钢京唐钢铁联合有限责任公司 | Installation accuracy control method for roller box supporting roller of straightening machine |
Family Cites Families (26)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3358485A (en) * | 1965-02-15 | 1967-12-19 | United States Steel Corp | Measuring and controlling gap between rolls |
AT293319B (en) * | 1969-04-23 | 1971-10-11 | Voest Ag | Device for shaping metal strands |
BE788725A (en) * | 1971-09-14 | 1973-03-12 | Westinghouse Electric Corp | HYDRAULIC TENSION REGULATION SYSTEM BETWEEN THE CAGES AND AUTOMATIC THICKNESS ADJUSTMENT FOR MULTI-CAGE ROLLING ROLLERS |
US4149395A (en) * | 1977-12-23 | 1979-04-17 | General Electric Company | Method and apparatus for correcting camber in rolled metal workpiece |
SU884769A1 (en) | 1980-03-12 | 1981-11-30 | Киевский институт автоматики им.ХХУ съезда КПСС | System for automatic adjusting of stand eqvivalent rigidity |
SU937068A1 (en) | 1980-07-03 | 1982-06-23 | Всесоюзный ордена Ленина научно-исследовательский и проектно-конструкторский институт металлургического машиностроения | Hydraulic screwdown apparatus of rolling stand |
JPS5855101A (en) * | 1981-09-28 | 1983-04-01 | Nippon Steel Corp | Rolling method and rolling mill for bar and wire rod |
FR2521040A1 (en) * | 1982-02-09 | 1983-08-12 | Sacilor | Controlling profile of rolled prods. e.g. railway rails - where numerous sensors are used to monitor and adjust positions of profiled work rolls |
JPS6152922A (en) * | 1984-08-23 | 1986-03-15 | Yaskawa Electric Mfg Co Ltd | Automatic rolling reduction device of hot reversible rolling mill |
BR8801799A (en) | 1987-08-26 | 1989-03-21 | Lauener Eng Ag | ARMATION FOR LAMINATION OR LAMINATED FOUNDATION |
FR2645051A1 (en) * | 1989-03-28 | 1990-10-05 | Clecim Sa | DEVICE FOR DETERMINING THE POSITION OF CYLINDERS OF A ROLLING MILL |
SU1704871A1 (en) | 1990-03-19 | 1992-01-15 | Ростовское Отделение Всесоюзного Научно-Исследовательского, Проектного И Проектно-Конструкторского Института По Комплексной Электрификации Промышленных Объектов "Тяжпромэлектропроект" Им.Ф.Б.Якубовского | Apparatus for compensating rolling stand roll eccentricity value |
DE4035276C1 (en) * | 1990-11-02 | 1992-05-07 | Mannesmann Ag, 4000 Duesseldorf, De | |
DE4115958C2 (en) | 1991-05-13 | 1994-04-07 | Mannesmann Ag | Device for aligning the upper edge of the lower work roll with the rolling line |
DE4141230A1 (en) * | 1991-12-13 | 1993-06-24 | Siemens Ag | ROLLING PLAN CALCULATION METHOD |
JPH06152922A (en) | 1992-11-06 | 1994-05-31 | Canon Inc | Picture transmitter |
JP3121471B2 (en) * | 1993-04-22 | 2000-12-25 | 株式会社日立製作所 | Rolling mill and rolling method |
JPH08229605A (en) | 1995-02-24 | 1996-09-10 | Mitsubishi Heavy Ind Ltd | Rolling mill |
JP3701981B2 (en) * | 1998-02-27 | 2005-10-05 | 新日本製鐵株式会社 | Sheet rolling method and sheet rolling machine |
DE19964042A1 (en) * | 1999-12-30 | 2001-07-05 | Sms Demag Ag | Calibration procedure for a universal roll stand |
BR0214472B1 (en) * | 2001-12-12 | 2010-09-21 | a device for measuring the space between the working rollers of an upstream of hot-rolling rollers or up to a cold-rolling rollers. | |
DE10312122B3 (en) | 2003-03-13 | 2004-08-12 | Sms Demag Ag | Four-column rolling mill is designed to separate force transmission onto rollers from guidance of roller inserts |
CN2631657Y (en) * | 2003-06-03 | 2004-08-11 | 陈明 | Composite board rolling machie of cylinder pad |
CN100560241C (en) * | 2005-12-26 | 2009-11-18 | 天津钢管集团股份有限公司 | Adjusting method of tube knockout machine |
SE530055C2 (en) * | 2006-06-30 | 2008-02-19 | Abb Ab | Method and apparatus for controlling roll gap when rolling a belt |
DE102006059709A1 (en) * | 2006-12-18 | 2008-06-19 | Siemens Ag | Rolling process for a strip |
-
2009
- 2009-08-31 DE DE102009039501A patent/DE102009039501A1/en not_active Withdrawn
-
2010
- 2010-08-25 US US13/393,165 patent/US9527121B2/en not_active Expired - Fee Related
- 2010-08-25 WO PCT/EP2010/005207 patent/WO2011023378A1/en active Application Filing
- 2010-08-25 CN CN201080039536.4A patent/CN102481609B/en not_active Expired - Fee Related
- 2010-08-25 RU RU2012112225/02A patent/RU2503514C2/en not_active IP Right Cessation
- 2010-08-25 EP EP10752302.9A patent/EP2473295B1/en not_active Not-in-force
-
2015
- 2015-09-02 US US14/843,369 patent/US20150375283A1/en not_active Abandoned
Non-Patent Citations (1)
Title |
---|
See references of WO2011023378A1 * |
Also Published As
Publication number | Publication date |
---|---|
CN102481609A (en) | 2012-05-30 |
US20120151980A1 (en) | 2012-06-21 |
US20150375283A1 (en) | 2015-12-31 |
EP2473295B1 (en) | 2015-01-21 |
RU2012112225A (en) | 2013-10-10 |
RU2503514C2 (en) | 2014-01-10 |
CN102481609B (en) | 2015-02-04 |
DE102009039501A1 (en) | 2011-03-03 |
WO2011023378A1 (en) | 2011-03-03 |
US9527121B2 (en) | 2016-12-27 |
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