US20110132055A1 - Rolling device - Google Patents

Rolling device Download PDF

Info

Publication number
US20110132055A1
US20110132055A1 US13/056,786 US200913056786A US2011132055A1 US 20110132055 A1 US20110132055 A1 US 20110132055A1 US 200913056786 A US200913056786 A US 200913056786A US 2011132055 A1 US2011132055 A1 US 2011132055A1
Authority
US
United States
Prior art keywords
roll
pressure transmission
rolling device
transmission element
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.)
Abandoned
Application number
US13/056,786
Other languages
English (en)
Inventor
Christian Diehl
Achim Klein
Bernd Zieser
Florian Lindner
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 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
Assigned to SMS SIEMAG AKTIENGESELLSCHAFT reassignment SMS SIEMAG AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: LINDNER, FLORIAN, ZIESER, BERND, KLEIN, ACHIM, DIEHL, CHRISTIAN
Publication of US20110132055A1 publication Critical patent/US20110132055A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • B21B13/142—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 by axially shifting the rolls, e.g. rolls with tapered ends or with a curved contour for continuously-variable crown CVC
    • 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
    • B21B37/42—Control of flatness or profile during rolling of strip, sheets or plates using a combination of roll bending and axial shifting of the rolls
    • 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
    • B21B31/18—Adjusting or positioning rolls by moving rolls axially

Definitions

  • the invention relates to a rolling device with at least two work rolls which are each mounted by means of at least one work roll chock in a roll stand, wherein at least one of the work rolls in the roll stand is adjustable relative to the other work roll for adjusting a desired roll gap, particularly in the vertical direction, wherein axial displacement means are provided by means of which a work roll can be displaced relative to the roll stand in the axial direction thereof, wherein the axial displacement means include an actuating element which is arranged coaxially relative to the axis of the work roll to be displaced, and wherein at least one work roll is in operative connection with bending means by means of which a bending moment can be applied to the work roll.
  • a rolling device of this type is known, for example, from EP 1 436 104 B1.
  • the rolling device disclosed in this document is equipped with axial displacement means, so that the work rolls can be moved in a desired axial position along the axial extension thereof and can be held at that location.
  • the axial displacement means constructed as hydraulic piston-cylinder include a piston which is fastened with one of its ends to a support arm which can slide up and down on the roll stand in vertical direction, together with the chock of the work roll.
  • the known rolling device further includes bending means for applying a bending moment on the work roll.
  • the bending means are mounted between the chock of the work roll and the chock of the adjacent back-up rolls. In the case of slight movements of the lower work roll in the vertical direction, the bending means rest between the chocks of the lower work roll and second portions on the beams of the roll stand.
  • the work roll displacement is realized by an axial displacement device arranged coaxially at the work roll chock, wherein the axial displacement device is moved out of the roll stand when the work roll is exchanged with the set of rolls.
  • the work roll bending device is of “overhanging” construction, in which the upper work roll chocks rest through the bending and balancing cylinders in U-shaped recesses of the upper back-up roll chocks.
  • the bending cylinders can be arranged in the work roll chocks or, alternatively, in the back-up roll chocks.
  • a high roll gap for example, of up to (1200 mm) is possible. This makes it possible to roll out high ingots on such a roll stand.
  • the work roll displacement and bending devices can be moved out of the roll stand when the set of rolls are moved out of the roll stand and maintenance is performed outside of the roll stand. This means that idle times in the plant for performing maintenance on these devices do not occur.
  • the axial displacement devices do not have to absorb tilting moments which otherwise have to be taken into consideration in displacement systems which are arranged stationary at the roll stand. This has a positive effect on the dimensioning of the displacement devices because a lower displacement force is required.
  • bending devices which are constructed in the manner of a “bending hood”.
  • This a work roll bending system in which the hydraulic blocks are provided with so-called “bending hoods”, which ensure a good guidance of the work roll chocks in the roll stand even in the case of high roll gaps and simultaneously makes possible a displacement of the respective work roll.
  • the device for axially displacing the work rolls is fastened to one of the two roll stand posts.
  • the work roll chocks are arranged so as to be displaceable in the vertical direction.
  • the invention is based on the object of providing a rolling device of the above-mentioned type which avoids the disadvantage of the type of construction mentioned first hereinabove and utilizes the advantages of the subsequently discussed solution. Accordingly, the high weight of the solution discussed last should be avoided and a less expensive construction is to be achieved. A high roll gap should also be made possible.
  • this object is met by providing the work roll chock for receiving the force produced by the bending means with laterally overhanging arms as seen from the axis of the work roll, wherein between an element of the bending means which produces compressive force, particularly a piston, and the overhanging arm of the work roll chock is arranged a pressure transmission element which is displaceable relative to the roll stand, particularly in the vertical direction.
  • the axial displacement means are preferably constructed as hydraulic piston/cylinder units.
  • the actuating element of the axial displacement means is preferably constructed in the form of a piston, wherein the piston is fastened with one of its axial ends to a holding arm which is secured on the roll stand in a guide, preferably a slide guide, to be capable of translatory movement.
  • the element of the bending means which produces the compressive force and the cantilevering arm of the work roll chock are preferably positioned in such a way that the center axis of the element which produces the compressive force intersects the overhanging arm.
  • a sliding surface is preferably arranged between the element of the bending means which produces the compressive force and the pressure transmission element and/or between the pressure transmission element and the overhanging arm of the work roll chock.
  • the bending means are advantageously arranged in a block which is fixedly arranged at the roll stand and the pressure transmission element is mounted on the block by means of a guide, particularly by means of a vertical guide.
  • the pressure transmission element is constructed preferably U-shaped in the horizontal cross section and surrounds the block from three sides at least partially.
  • the pressure transmission element is constructed preferably L-shaped in a vertical section extending perpendicularly on the axis of the work roll and surrounds the block on its upper side at least partially.
  • the pressure transmission element can be supported on the roll stand by means of a guide, particularly by means of a vertical guide.
  • Holding means can be arranged between the block and the pressure transmission element which hold the pressure transmission element in horizontal position immovably relative to the work roll at the block.
  • the result is that an axial displacement device is used which is arranged coaxially relative to the axis of the work roll.
  • the bending device which is used simultaneously is constructed according to the type of construction of “bending hood”.
  • FIG. 1 shows a portion of a rolling device in a perspective view
  • FIG. 2 is the front view of the rolling device according to FIG. 1 in a sectional view taken along sectional line A-A according to FIG. 3 ;
  • FIG. 3 is the top view of the rolling device in a sectional view along sectional line B-B according to FIG. 2 ;
  • FIG. 4 shows the bending means of the rolling device in a sectional view along sectional line C-C according to FIG. 3
  • the Figures show a rolling device 1 in which the two interacting work rolls 2 and 3 , which are each mounted in a work roll chock 4 or 5 , are arranged in a roll stand 6 .
  • the upper work roll chock 5 is adjustably constructed in the vertical direction; accordingly the work roll chock 5 can be moved in the vertical direction relative to the roll stand 6 .
  • the work rolls 2 , 3 are respectively supported on back-up rolls 24 and 25 , wherein the back-up rolls are supported in a back-up roll chock 26 or 27 , respectively. Accordingly, the illustrated rolling device 1 has altogether four rolls. It should be mentioned that the rolling device may also have additional rolls, namely, intermediate rolls arranged between the work rolls 2 , 3 and the back-up rolls 24 , 25 .
  • bending means 11 are provided for introducing a bending moment into the work rolls 2 , 3 .
  • the bending means 11 are arranged in both axial end areas of the work rolls 2 , 3 and otherwise are arranged on the roll stand 6 inlet side and the outlet side (see FIG. 2 ). Accordingly, altogether four bending means 11 are provided.
  • the bending means 11 have a block 20 which is arranged fixedly at the roll stand 6 , as can be seen particularly in FIG. 2 .
  • the block 20 has cylindrical holes in which are arranged elements 14 that produce compressive force, i.e. pistons, to which hydraulic pressure can be admitted.
  • the pistons 14 have a center axis 18 which extends in the vertical direction.
  • each work roll chock 4 , 5 has overhanging arms 12 and 13 which are arranged laterally of the axis 10 of the work roll 2 , 3 .
  • the overhanging arms 12 , 13 extend—away from the work roll 2 , 3 —laterally outwardly and engage over the pistons 14 and in particular their center axis 18 .
  • a pressure transmission element 15 is arranged between the bending means 11 and particularly the pistons 14 thereof and the overhanging arms 12 , 13 of the work roll chocks 4 , 5 .
  • This element 15 is equipped with two sliding surfaces 19 and 28 which are in gliding condition between the pistons 14 and the pressure transmission element 15 , on the one hand, or between the pressure transmission element 15 and the overhanging arm 12 , 13 on the other.
  • piston 14 and overhanging arm 12 , 13 are positioned in such a way that the center axis 18 of the piston 14 intersects the overhanging arm 12 , 13 . This produces an optimum force transmission from the bending means 11 to the work roll chock 4 , 5 .
  • the pressure transmission element 15 is arranged over a vertical guide 29 on the block 20 and, thus, can move in the vertical direction relative to the block 20 and, thus, to the roll stand 6 .
  • another vertical guide is provided which guides the pressure transmission element 12 in the upper area at the roll stand 6 , in particular a transverse girder of the pressure transmission element 15 .
  • the pressure transmission element 15 is constructed as a “bending hood”. This means that it is constructed U-shaped in a horizontal section and surrounds the block 20 from three sides at least partially, as can be seen best in FIG. 3 .
  • FIG. 2 shows that the pressure transmission element 15 is constructed L-shaped in a vertical section extending perpendicularly on the axis 10 of the work roll 2 , 3 and surrounds the block 20 partially at its upper side. With its two legs (see FIG. 3 ) the pressure transmission element 15 is arranged so as to vertically slide against axial displacement forces but secured against tilting at the three sides of the block 20 .
  • the pressure transmission element is supported on the end face of the block 20 facing the work roll 2 and, thus, can absorb high horizontal forces which may be directed at the input side against and on the output side with the roller direction.
  • the pressure transmission element 15 is provided in or against the rolling direction with further sliding surfaces which are fastened to the legs and which make possible a support on the side surfaces of the roll stand 6 which face the work roll 2 .
  • holding means 23 are provided (see FIG. 3 ). The holding means 23 prevent the pressure transmission element 15 from being displaceable in the direct direction to the roll axis 10 .
  • axial displacement means 8 are provided for axially adjusting the work roll 2 , 3 .
  • FIG. 4 shows that, in addition to the upwardly directed compressive force producing elements 14 (pistons) of the bending means 11 , which act on the upper work roll chock 5 , additional force-producing elements 30 are provided which produce a downwardly directed force and apply a bending force to the lower work roll chock 4 .
  • displacement devices are hydraulic piston/cylinder units arranged on the operator's side of the work roll chocks.
  • the piston of the piston/cylinder unit is connected to the holding arms guided in the corresponding chocks.
  • Locks arranged at the outer side of two girders of the roll stand post arranged on the operator's side prevents during the rolling operation a horizontal movement of the holding arms and, thus, an axial movement of the piston.
  • the bending device is characterized by hydraulic blocks with “bending hoods”, which ensures a good guidance of the work roll chock in the roll stand even at high roll gaps and simultaneously facilitates a displacement of the respective work roll for a targeted change of the profile of the rolling stock traveling through the roll gap by means of the displacement device.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Machine Tool Units (AREA)
US13/056,786 2008-07-30 2009-07-30 Rolling device Abandoned US20110132055A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008035702A DE102008035702A1 (de) 2008-07-30 2008-07-30 Walzvorrichtung
DE102008035702.2 2008-07-30
PCT/EP2009/005525 WO2010012465A2 (fr) 2008-07-30 2009-07-30 Dispositif de laminage

Publications (1)

Publication Number Publication Date
US20110132055A1 true US20110132055A1 (en) 2011-06-09

Family

ID=41461540

Family Applications (1)

Application Number Title Priority Date Filing Date
US13/056,786 Abandoned US20110132055A1 (en) 2008-07-30 2009-07-30 Rolling device

Country Status (10)

Country Link
US (1) US20110132055A1 (fr)
EP (1) EP2307152B1 (fr)
JP (1) JP2011529399A (fr)
KR (1) KR101268320B1 (fr)
CN (1) CN102112245B (fr)
DE (1) DE102008035702A1 (fr)
ES (1) ES2426464T3 (fr)
RU (1) RU2461434C1 (fr)
UA (1) UA99776C2 (fr)
WO (1) WO2010012465A2 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080250834A1 (en) * 2005-10-10 2008-10-16 Brian Cooper Roll Bending Device
US20110154877A1 (en) * 2008-02-19 2011-06-30 Michael Breuer Roll stand, particularly push roll stand
US20110283763A1 (en) * 2009-01-23 2011-11-24 Sms Siemag Aktiengesellschaft Bending and balancing device for axially shiftable work rolls of a rolling mill
US20130125602A1 (en) * 2010-08-05 2013-05-23 Danieli & C. Officine Meccaniche S.P.A Integrated bending and shifting system under load for large opening stands between the working rolls

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103128101B (zh) * 2013-03-15 2015-04-29 中冶赛迪工程技术股份有限公司 多维可控模块化的六辊轧机
KR102129193B1 (ko) * 2016-01-14 2020-07-01 가부시키가이샤 아이에이치아이 압연 장치 및 압연 장치의 개조 방법
CN111819013B (zh) * 2018-03-08 2022-03-15 日本制铁株式会社 轧机的设定方法以及轧机
US11612924B2 (en) * 2018-03-28 2023-03-28 Sintokogio, Ltd. Electric lifting apparatus and roll press machine
KR102395476B1 (ko) 2022-01-07 2022-05-06 김형태 스프링 방식의 압연롤 갭 조절장치

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907439A (en) * 1986-11-10 1990-03-13 Sms Schloemann-Siemag Aktiengesellschaft Roll stand with system for axially displaceable rolls
US6571592B1 (en) * 1999-03-04 2003-06-03 Hongzhuan Zheng Rolling mill with roll deflection bi-dimensionally controlled
US20070129228A1 (en) * 2003-07-30 2007-06-07 Bernd Zieser Rolling stand
US7299673B2 (en) * 2003-07-30 2007-11-27 Sms Demag Ag Rolling device
US7310985B2 (en) * 2001-10-17 2007-12-25 Sms Demag Ag Rolling device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SU1072934A1 (ru) * 1983-01-21 1984-02-15 Ждановский металлургический институт Прокатна клеть
JPS6094303U (ja) * 1983-11-29 1985-06-27 石川島播磨重工業株式会社 圧延機のロ−ルベンディング装置
FR2611541B1 (fr) * 1987-02-27 1994-04-29 Clecim Sa Dispositif de reglage du profil et de repartition d'usure de cylindres dans un laminoir a cylindres deplacables axialement
DE3815454A1 (de) * 1988-05-06 1989-11-16 Schloemann Siemag Ag Biege- und ausbalanciervorrichtung fuer axial verschiebbare walzen eines walzgeruestes
SU1755981A1 (ru) * 1989-10-23 1992-08-23 Институт черной металлургии Прокатна клеть кварто
EP1772203A1 (fr) * 2005-10-10 2007-04-11 VAI Industries (UK) Limited Dispositif pour le cintrage de cylindres

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907439A (en) * 1986-11-10 1990-03-13 Sms Schloemann-Siemag Aktiengesellschaft Roll stand with system for axially displaceable rolls
US6571592B1 (en) * 1999-03-04 2003-06-03 Hongzhuan Zheng Rolling mill with roll deflection bi-dimensionally controlled
US7310985B2 (en) * 2001-10-17 2007-12-25 Sms Demag Ag Rolling device
US20070129228A1 (en) * 2003-07-30 2007-06-07 Bernd Zieser Rolling stand
US7299673B2 (en) * 2003-07-30 2007-11-27 Sms Demag Ag Rolling device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080250834A1 (en) * 2005-10-10 2008-10-16 Brian Cooper Roll Bending Device
US8132440B2 (en) * 2005-10-10 2012-03-13 Siemens Vai Metals Technologies Ltd. Roll bending device
US20110154877A1 (en) * 2008-02-19 2011-06-30 Michael Breuer Roll stand, particularly push roll stand
US9770745B2 (en) * 2008-02-19 2017-09-26 Sms Siemag Ag Roll stand, particularly push roll stand
US20110283763A1 (en) * 2009-01-23 2011-11-24 Sms Siemag Aktiengesellschaft Bending and balancing device for axially shiftable work rolls of a rolling mill
US9802231B2 (en) * 2009-01-23 2017-10-31 Sms Group Gmbh Bending and balancing device for axially shiftable work rolls of a rolling mill
US20130125602A1 (en) * 2010-08-05 2013-05-23 Danieli & C. Officine Meccaniche S.P.A Integrated bending and shifting system under load for large opening stands between the working rolls
US9421595B2 (en) * 2010-08-05 2016-08-23 Danieli & C. Officine Meccaniche S.P.A. Integrated bending and shifting system under load for large opening stands between the working rolls

Also Published As

Publication number Publication date
JP2011529399A (ja) 2011-12-08
CN102112245A (zh) 2011-06-29
KR20110029172A (ko) 2011-03-22
RU2461434C1 (ru) 2012-09-20
WO2010012465A2 (fr) 2010-02-04
CN102112245B (zh) 2014-06-25
ES2426464T3 (es) 2013-10-23
KR101268320B1 (ko) 2013-05-28
UA99776C2 (en) 2012-09-25
WO2010012465A3 (fr) 2010-05-14
EP2307152B1 (fr) 2013-07-10
DE102008035702A1 (de) 2010-02-04
EP2307152A2 (fr) 2011-04-13

Similar Documents

Publication Publication Date Title
US20110132055A1 (en) Rolling device
US8099990B2 (en) Roll changing device with wedge adjusting device
KR101268322B1 (ko) 압연 장치
RU2008132868A (ru) Способ и устройство для манипулирования /транспортировки рабочих валков и/или опорных валков
CA2463075A1 (fr) Dispositif de laminage
CN113275382B (zh) 轧机架
US8225637B2 (en) Guiding device for the chocks of work rolls
CA2533693A1 (fr) Dispositif de laminage
US3626739A (en) Apparatus for roll counter-deflection in rolling stands
RU2462323C1 (ru) Система валков
RU2286219C1 (ru) Рабочая клеть стана холодной прокатки труб
JP7189346B2 (ja) 圧延装置
RU2690620C1 (ru) Устройство для регулирования обжимного валка обжимной клети
US8276422B2 (en) Roller device
JP7352746B2 (ja) 圧延装置
JP2012525259A (ja) 入口ガイドと出口ガイドを備えた可逆ロールスタンド
DE50207039D1 (de) Vielwalzengerüst, insbesondere sexto-walzgerüst, mit einer axialverschiebe- und haltevorrichtung für verschiebbar gelagerte zwischenwalzen und/oder arbeitswalzen
RU2292968C1 (ru) Рабочая клеть стана холодной прокатки труб
CN110621421A (zh) 用于轧制金属物料的轧机机架

Legal Events

Date Code Title Description
AS Assignment

Owner name: SMS SIEMAG AKTIENGESELLSCHAFT, GERMANY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:DIEHL, CHRISTIAN;KLEIN, ACHIM;ZIESER, BERND;AND OTHERS;SIGNING DATES FROM 20110129 TO 20110201;REEL/FRAME:025833/0420

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION