EP4100178B1 - Verfahren zur automatischen kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie kalibrieranordnung zur durchführung des verfahrens - Google Patents

Verfahren zur automatischen kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie kalibrieranordnung zur durchführung des verfahrens Download PDF

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Publication number
EP4100178B1
EP4100178B1 EP21703897.5A EP21703897A EP4100178B1 EP 4100178 B1 EP4100178 B1 EP 4100178B1 EP 21703897 A EP21703897 A EP 21703897A EP 4100178 B1 EP4100178 B1 EP 4100178B1
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EP
European Patent Office
Prior art keywords
vertical
vertical roller
rolling
roll stand
reference surface
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.)
Active
Application number
EP21703897.5A
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German (de)
English (en)
French (fr)
Other versions
EP4100178C0 (de
EP4100178A1 (de
Inventor
Stefan Wendt
Ralf Setzer
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 Group GmbH
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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Publication of EP4100178A1 publication Critical patent/EP4100178A1/de
Application granted granted Critical
Publication of EP4100178C0 publication Critical patent/EP4100178C0/de
Publication of EP4100178B1 publication Critical patent/EP4100178B1/de
Active 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
    • 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
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/06—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged vertically, e.g. edgers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2261/00—Product parameters
    • B21B2261/02—Transverse dimensions
    • B21B2261/06—Width
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/22—Aligning on rolling axis, e.g. of roll calibers

Definitions

  • the invention relates to a method for the automatic calibration of vertical rolls or vertical rolls (hereinafter referred to only as vertical rolls) of a vertical rolling stand for rolling flat metal products, in particular for rolling steel and non-ferrous metals.
  • Calibration of a vertical rolling stand is necessary to determine and, if necessary, correct the position of the vertical rolls with respect to the center of the rolling train so that the outer edges of the vertical rolls facing the center of the rolling train are the same distance from the centerline of the rolling train. Calibration can, for example, always be necessary when the vertical rolling stand is put back into operation after a repair, when the rolling train is started up again after a standstill or after a loss of signal from the control system or when the rolling result suggests a correction of the position of the vertical rolls.
  • a generic method for calibrating the vertical roll gap of a vertical roll stand includes determining and marking the centerline of the rolling train for the upper and lower ends of the vertical rolls, respectively, determining the distance of the axes of the vertical rolls to the marked centerline, and vertically aligning the ends of the vertical rolls to the marked centerline. The distance from the lower ends of the vertical rollers to the lower end of the marked center line is then compared with the distance from the upper ends of the vertical rollers to the upper end of the marked center line. This is used to adjust the vertical alignment and centering of the vertical rolls in order to then carry out calibration by measuring the width of the roll gap. How exactly the distances are measured is not described in this publication.
  • JP 2012218060 A a method is described in which the position of the vertical rolls in a vertical rolling stand is determined exclusively by means of sensors or position sensors which are arranged on the adjusting cylinders and on the reset cylinders of the vertical roll units.
  • the present invention is based on the problem of providing a method and an arrangement for carrying out the method, with which the calibration of vertical rolling stands can be automated as far as possible without personnel having to be in the stand area.
  • the method steps according to claim 1 are preferably carried out in the order in which they are listed.
  • a method for the automatic calibration of vertical rolls of a vertical rolling stand wherein the vertical rolls are each mounted in a vertical roll unit which, in relation to a predetermined center line, of several components of the rolling train arranged in a rolling train, for example rolling stands, side guides, Roller tables etc. can be adjusted, in which the vertical roller units are first moved or adjusted transversely to the center line of the rolling train against at least one stationary stop of the vertical rolling stand, which has a certain known position with respect to the center line.
  • This position of the vertical roller units is referred to below as the calibration position.
  • the stop can, for example, be designed as a reference surface that was measured and aligned with respect to the center line when the vertical rolling stand was set up in the rolling train.
  • a calibrated initial distance is calculated between an outer edge of a vertical roller directed towards a rolling stock and the center line in the calibration position.
  • the vertical roller units are then moved from the calibration position to an operating position.
  • the adjustment path to be covered is specified or calculated for each vertical roller or for each vertical roller unit, taking into account the calibrated initial distance.
  • the method according to the invention provides, on the one hand, to provide reference surfaces on the movable vertical roll units or on adjacent or connected components on a vertical rolling stand and, on the other hand, to provide measuring surfaces or reference surfaces on stationary components of the vertical rolling stand.
  • the position of these reference surfaces relative to the position of the outer edges of the rolling stock or the outer edges of the vertical rolls facing the rolling stock can be determined relatively easily, as can the position of the reference surfaces relative to one another and to the center line of the rolling train.
  • the reference surfaces on the movable assemblies of the vertical rolling stand can be moved against reference surfaces of the stationary assemblies so that they touch each other and a further change in position is no longer possible.
  • a calibration process is carried out for a first vertical roller unit and for an associated second vertical roller unit, with the first and second vertical roller units being moved into the operating position in relation to the center line after the calibration process be moved so that the outer edges of the first and second vertical rollers facing the rolling stock are at the same distance from the center line.
  • an operating position in the sense of the present application is to be understood as the position of the vertical roller units, which they assume as the target position when the vertical rolling stand is in operation.
  • the calibration position in the context of the present invention is to be understood as meaning that position of the vertical roller units in which at least one reference surface on a movable part of the vertical rolling stand rests against a reference surface of a stationary or stationary part of the vertical rolling stand when the vertical rolling stand is not in rolling operation.
  • the calibration process is preferably carried out for each vertical roller separately and independently of the calibration process for the other vertical roller.
  • the calculation of the calibrated initial distance is based on a given diameter of the vertical rollers.
  • This given diameter can have been calculated starting from a target diameter, taking into account a wear-related change during the rolling process, and used as the basis for calculating the calibrated initial distance.
  • Each reference surface on a movable component of the vertical rolling stand is assigned a reference surface on a stationary component of the vertical rolling stand.
  • the stationary components of the vertical rolling stand are, for example, crossheads, stand spars and upper and lower roll beams.
  • the position of the reference surfaces on movable components of the vertical rolling stand are determined and known with regard to the distance of the outer edge of the vertical roll directed towards the rolling stock.
  • the position of the reference surfaces on stationary components of the vertical rolling stand are known and determined with regard to the distance to the center line of the rolling mill.
  • the calibrated total opening of the vertical rolling stand results from the sum of the individual calibration results for a first side, for example for a drive side, and for a second side, for example for an operating side of the vertical rolling stand.
  • the calibration position is on the side of the vertical rolls facing the rolling stock.
  • a calibration position which is located in the outer regions of the vertical rolling stand.
  • the reference surfaces would be located on the outer regions of the vertical rolling stand. Then the reference surfaces would touch each other, which can be provided, for example, stationary on the crossheads on the one hand and movable on the traverses on the other.
  • the adjustment of the vertical roller unit into the calibration position and/or the adjustment of the vertical roller unit into the defined operating position is expediently carried out by means of at least one adjustment system and/or by means of at least one return system.
  • the adjusting system can include at least one translationally moving element, for example an adjusting cylinder or an adjusting screw.
  • the return system can comprise at least one translationally moving element in the form of a screw drive or a return cylinder.
  • adjustment system and/or the return system can in principle be designed as mechanical systems, these are preferably designed as hydraulic systems that include corresponding piston-cylinder arrangements.
  • the vertical roller unit is set into a defined operating position expediently by means of the at least one adjustment system and/or by means of the at least one return system.
  • the calibration process is preferably monitored via at least one measuring element, for example via a position sensor, in order to be able to carry out a target/actual comparison of the actual position and desired position of the vertical rollers.
  • at least one position sensor can be provided in and/or on the adjustment system.
  • reaching the defined operating position of the vertical roller unit can be monitored by means of at least one measuring element using at least one position sensor, preferably on at least one hydraulic piston-cylinder arrangement of the at least one hydraulic adjustment system and/or the at least one hydraulic return system.
  • a preferred variant of the method is characterized in that method step a) comprises initially at least a first reference surface of a defined position on a vertical roller unit or on a component adjacent to the vertical roller unit and movable with the vertical roller unit with at least a second in relation to the center line stationary reference surface defined position on the vertical rolling stand, preferably using an adjusting force, is brought into contact.
  • a movable component can be, for example, a traverse or a chock of the vertical rolling stand.
  • the vertical roller unit can be adjusted according to method step a) over a first distance at an increased speed and over a second distance at a reduced speed until the first and second reference surfaces touch each other.
  • an increase in the contact force is preferably provided when the assigned measuring surfaces come into contact with one another, followed by a reset of the vertical roller unit with assigned movable components up to a defined unloaded position.
  • the increase in the contact force as well as the duration of the effect are each limited.
  • the adjusting force of the mutually touching reference surfaces can be monitored and limited to a predetermined maximum value by means of at least one pressure transmitter on at least one piston-cylinder arrangement of the hydraulic adjusting system and/or the hydraulic return system.
  • the pressure transmitter acts like a limit switch. If a mechanical adjustment system is provided, at least one pressure transmitter in the form of a pressure cell can be provided to monitor and limit the adjustment force.
  • the actual position of an outer edge of the vertical roll directed towards the rolling stock be compared with a target position.
  • the calibration procedure can be carried out when the rolling stock has left the vertical stand, e.g. during a break in rolling, in repair shop or during maintenance. If the vertical roller units are adjusted into a calibration position transversely to the center line of the rolling mill against stops of the vertical rolling stand, which are provided on the crossheads of the rolling stand, the calibration process can also be carried out when the rolling stock is located within the rolling stand.
  • a further aspect of the invention relates to a vertical rolling stand for a rolling train for rolling metal products, preferably for carrying out the method described above, with a calibration arrangement, with at least two vertical rollers, each mounted in vertical roller units, which define a roll gap and which preferably have at least one hydraulic Adjustment system and / or at least one preferably hydraulic return system can be adjusted with respect to a predetermined center line of several components of the rolling train arranged in the rolling train, the calibration arrangement comprising at least a first reference surface of a defined position on at least one vertical roller unit or on adjacent or connected components, which is movable with the vertical roller unit and comprises at least a second reference surface that is stationary with respect to the center line and a control with which at least one position sensor of the adjustment system and / or the return system adjusts the vertical roller units transversely to the center line against the second reference surface as a stationary stop of the vertical rolling stand for determining a calibrated starting position and for calculating a calibrated initial distance between an outer edge of a vertical roll directed towards a rolling stock
  • the vertical rolling stand in which the method according to the invention is provided and on which the calibration arrangement according to the invention is provided does not necessarily have to include a return system.
  • a return system is only required if the adjustment system is not firmly connected to the traverse or the chocks. A movement of the adjustment system transverse to the center line then also causes a movement of the chocks. However, movement in the direction of the crossheads does not cause a corresponding movement of the chocks. In such a case, a return system is provided which allows the chocks to follow the movement of the adjustment system. In the vertical rolling stand, the adjustment system can be firmly connected to the crossbeam or the chocks. In such a case, a separate retrieval system is not required. The adjustment system then also takes over the function of the return system.
  • At least one first reference surface is arranged at least on an upper and/or a lower chock of the vertical rollers and that preferably at least on an upper and/or a lower one Roll beam of the vertical rolling stand at least a second stationary reference surface is provided.
  • Another expedient embodiment of the calibration arrangement provides that at least a first reference surface is arranged on a component adjacent to or connected to the vertical roller unit, for example the cross member, and that at least a second reference surface is provided on the respective corresponding crosshead of the vertical rolling stand.
  • At least one of the first and/or second reference surfaces is adjustable in terms of its position.
  • the at least one first reference surface and/or the at least one second reference surface are expediently designed as adjustable or adjustable and/or exchangeable measuring plates.
  • the calibration arrangement according to the invention preferably comprises at least one position sensor for monitoring the position of the vertical roller units.
  • At least one pressure transmitter can be provided, via which a contact force of the at least one first reference surface against the at least one second reference surface can be limited.
  • the vertical rolling stand 1 with the calibration arrangement according to the invention comprises two vertical roller units 3 which are adjustably arranged in a stationary roll stand.
  • the roll stand is aligned with respect to a center line 2 of several components of a rolling train arranged in a rolling train, for example rolling stands, side guides, roller tables, etc.
  • the drawing shows the crossheads 4, the stand beams 5 and the upper and lower rolling beams 6A and 6B of the vertical rolling stand 1.
  • the vertical roller units 3 each include a vertical roller 7, which is mounted in an upper chock 8A and a lower chock 8B.
  • the chocks 8A, 8B are each connected to one another via traverses 9 and are adjustable with the traverses 9 relative to one another and with respect to the center line 2.
  • the vertical roller units 3 are adjusted via an adjustment system and a return system.
  • the adjusting system includes on each side of the vertical rolling stand 1 (operating side and drive side) an upper and a lower adjusting cylinder 10A, 10B, which act on the upper and lower chocks 8A, 8B, respectively.
  • the retrieval system includes a retrieval cylinder 11 on each side, which is operatively connected to the traverse 9.
  • the traverses 9 can be moved together with the chocks 8A, 8B.
  • Figure 1 shows the vertical rolling stand 1 not in rolling operation, namely with a position of the vertical roll units 3 in which they are in the calibration position, in which the vertical roll units 3 move in the direction of the center line 2 of the rolling train against a stationary stop of the vertical rolling stand 1 are.
  • the stationary stop is formed by stationary reference surfaces which have a specific and known position with respect to the center line 2, against which in Figure 1 Position shown movable reference surfaces rest on the vertical roller units 3.
  • the stop is formed by stationary measuring plates 12A and 12B, which are provided on both sides of the upper rolling beam 6A and the lower rolling beam 6B are. For the calibration arrangement to function, it is sufficient to provide only stationary measuring plates 12 on the upper rolling beam 6A or on the lower rolling beam 6B.
  • upper and lower movable measuring plates 14 A, 14 B are provided as movable reference surfaces on the side of the chocks 8A, 8B facing the center line 2. These movable measuring plates are attached to the respective chocks 8A, 8B, if necessary adjustable, and are movable together with the chocks 8A, 8B.
  • the stationary measuring plates 12A, 12B have a certain, known position with respect to the center line 2
  • the movable measuring plates 14A, 14B have a known, certain position with respect to the outer edges 13 of the vertical rollers 6 facing the rolling stock.
  • the outer edges 13 of the vertical rollers 7 directed towards the center line 2 should be in operation when the vertical rolling stand 1 is in operation, i.e. H. in the operating position of the vertical roller units 3 have the same distance from the center line 2 of the rolling mill.
  • the vertical rolling stand 1 needs to be calibrated.
  • an automatic calibration including the adjustment system and the return system of the vertical rolling stand 1.
  • the adjustment system and the return system or the associated adjustment cylinders 10A and 10B and return cylinder 11 are controlled via a controller S.
  • At least one of the adjusting cylinders 10A includes a position sensor PG, via which a target/actual comparison of the actual position and the controlled position of the vertical roller 7 in question can be carried out in the control S.
  • a pressure transmitter DG is provided, which can monitor the pressurization of the return cylinder 11.
  • Each pressure transmitter DG can alternatively or additionally be provided on one or more adjusting cylinders 10A, 10B.
  • the automatic calibration according to the invention is carried out for each side of the vertical rolling stand 1 (operating side and drive side) separately and independently of the other side.
  • the sensors required for this are on each side of the vertical rolling stand 1 intended.
  • Figure 1 Only one control, position monitoring and pressure monitoring are shown for one side.
  • the exemplary embodiment is to be understood as meaning that such control, position monitoring and pressure monitoring are provided for each of the sides of the vertical rolling stand 1.
  • the control S first effects an adjustment of the upper and lower chocks 8A, 8B with the aid of the adjusting cylinders 10A, 10B and the return cylinder 11 in the direction of the center line 2 until the movable measuring plates 14A, 14B rest against the stationary measuring plates 12A, 12B.
  • This adjustment movement takes place over a first distance at a relatively high speed and over a second distance at a relatively low speed while applying a predetermined contact force, the increase of which is monitored via the pressure transmitter DG.
  • the process is ended when the pressure detected by the pressure transmitter DG exceeds a predetermined value. This detects the end position of the vertical roller unit 3 in the calibration position.
  • the same distance to the center line 2 specified for the operating position of the vertical roller units 3 can be set.
  • the reference surfaces are located on the outer areas of the vertical rolling stand 1. This is only hinted at in the figures with dashed lines.
  • the upper and lower movable measuring plates in this alternative embodiment are designated 14A' and 14B'.
  • the upper and lower stationary measuring plates are designated 12A' and 12B' in this alternative embodiment.
  • the upper and lower movable measuring plates 14A' and 14B' are provided on the sides of the traverses 9 facing away from the vertical rollers 7.
  • the upper and lower stationary measuring plates 12A 'and 12B' are provided on the sides of the crossheads 4 of the vertical rolling stand 1 facing the vertical rollers 7. This means that a calibration position is the position in which the vertical rollers 7 are completely moved apart.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
EP21703897.5A 2020-02-06 2021-02-05 Verfahren zur automatischen kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie kalibrieranordnung zur durchführung des verfahrens Active EP4100178B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102020201445 2020-02-06
DE102020213239.9A DE102020213239A1 (de) 2020-02-06 2020-10-20 Verfahren zur automatischen Kalibrierung von Vertikalrollen eines Vertikalwalzgerüsts sowie Kalibrieranordnung zur Durchführung des Verfahrens
PCT/EP2021/052778 WO2021156424A1 (de) 2020-02-06 2021-02-05 Verfahren zur automatischen kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie kalibrieranordnung zur durchführung des verfahrens

Publications (3)

Publication Number Publication Date
EP4100178A1 EP4100178A1 (de) 2022-12-14
EP4100178C0 EP4100178C0 (de) 2024-01-31
EP4100178B1 true EP4100178B1 (de) 2024-01-31

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Family Applications (2)

Application Number Title Priority Date Filing Date
EP21703897.5A Active EP4100178B1 (de) 2020-02-06 2021-02-05 Verfahren zur automatischen kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie kalibrieranordnung zur durchführung des verfahrens
EP21703693.8A Active EP4100177B1 (de) 2020-02-06 2021-02-05 Verfahren zur kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie walzstrasse mit einer kalibrieranordnung zur durchführung des verfahrens

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EP21703693.8A Active EP4100177B1 (de) 2020-02-06 2021-02-05 Verfahren zur kalibrierung von vertikalrollen eines vertikalwalzgerüsts sowie walzstrasse mit einer kalibrieranordnung zur durchführung des verfahrens

Country Status (6)

Country Link
US (1) US20230048632A1 (ja)
EP (2) EP4100178B1 (ja)
JP (1) JP7429302B2 (ja)
CN (1) CN115103727A (ja)
DE (3) DE102020213243A1 (ja)
WO (3) WO2021156424A1 (ja)

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JPS57142718A (en) * 1981-02-27 1982-09-03 Kawasaki Steel Corp Detecting method for edger roll opening
JPH0741287B2 (ja) * 1985-12-24 1995-05-10 石川島播磨重工業株式会社 エツジヤ−装置
JPH08192203A (ja) * 1995-01-18 1996-07-30 Kawasaki Steel Corp 竪形圧延機の開度零調方法
JP5261573B2 (ja) * 2009-03-26 2013-08-14 東芝三菱電機産業システム株式会社 基準位置調整監視装置
JP5720391B2 (ja) 2011-04-13 2015-05-20 株式会社Ihi エッジャー
CN102989792B (zh) 2011-09-16 2014-07-09 上海梅山钢铁股份有限公司 一种热轧立辊辊缝的标定方法
CN102688904B (zh) 2012-06-13 2014-05-07 鞍钢股份有限公司 一种轧机立辊开口度标定方法
EP2689863A1 (de) 2012-07-27 2014-01-29 Siemens Aktiengesellschaft Verfahren zur gezielten Beeinflussung der Geometrie eines Walzguts
CN103316925B (zh) * 2013-06-07 2016-10-19 鞍钢股份有限公司 一种粗轧机立辊中心线的标定方法
KR101562125B1 (ko) * 2014-03-27 2015-10-22 현대제철 주식회사 롤 간격 측정장치
CN106040753B (zh) * 2016-06-21 2018-06-22 首钢京唐钢铁联合有限责任公司 一种立辊辊缝标定的方法
JP6870509B2 (ja) 2017-07-10 2021-05-12 日本製鉄株式会社 圧延機
CN209310738U (zh) * 2018-12-04 2019-08-27 马鞍山钢铁股份有限公司 一种立辊轧机立辊对中间距测量装置
CN110026440B (zh) 2019-03-20 2023-10-20 宁波中超机器有限公司 用于轧机的液压压下装置及其校准方法
CN110153203A (zh) * 2019-05-29 2019-08-23 北京首钢股份有限公司 一种立辊标定方法

Also Published As

Publication number Publication date
WO2021156425A1 (de) 2021-08-12
EP4100177A1 (de) 2022-12-14
JP7429302B2 (ja) 2024-02-07
US20230048632A1 (en) 2023-02-16
EP4100177B1 (de) 2024-04-17
WO2021156427A1 (de) 2021-08-12
DE102020213241A1 (de) 2021-08-12
WO2021156424A1 (de) 2021-08-12
EP4100178C0 (de) 2024-01-31
DE102020213243A1 (de) 2021-08-12
EP4100178A1 (de) 2022-12-14
DE102020213239A1 (de) 2021-08-12
EP4100177C0 (de) 2024-04-17
CN115103727A (zh) 2022-09-23
JP2023513183A (ja) 2023-03-30

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