EP2307152B1 - Dispositif de laminage - Google Patents

Dispositif de laminage Download PDF

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Publication number
EP2307152B1
EP2307152B1 EP09777547.2A EP09777547A EP2307152B1 EP 2307152 B1 EP2307152 B1 EP 2307152B1 EP 09777547 A EP09777547 A EP 09777547A EP 2307152 B1 EP2307152 B1 EP 2307152B1
Authority
EP
European Patent Office
Prior art keywords
roll
transmission element
pressure transmission
rolling device
bending
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
EP09777547.2A
Other languages
German (de)
English (en)
Other versions
EP2307152A2 (fr
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
Publication of EP2307152A2 publication Critical patent/EP2307152A2/fr
Application granted granted Critical
Publication of EP2307152B1 publication Critical patent/EP2307152B1/fr
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
    • 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
    • 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
    • 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

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 rolling mill, wherein at least one of the work rolls in the rolling stand for setting a desired roll gap relative to the other work roll, in particular in the vertical direction, is adjustable, wherein Axialverschiebesch are provided, with which a work roll can be moved relative to the rolling stand in its axial direction, wherein the Axialverschiebstoff having an actuator which is arranged coaxially to the axis of the displaceable work roll, and wherein at least one work roll is in operative connection with bending means, with which this a bending moment can be applied.
  • a rolling device of this kind is for example from the EP 1 436 104 B1 known.
  • the rolling apparatus disclosed therein is equipped with axial displacement means so that the work rolls can be moved to and held in a desired axial position along their axial extent.
  • the axial displacement means constructed as a hydraulic piston-cylinder system comprise a piston fixed at one of its ends to a support arm which can slide up and down the rolling stand in the vertical direction, together with the work roll chock.
  • the previously known rolling device comprises bending means with which the work roll can be subjected to a bending moment.
  • the bending means are supported between the chock of the work roll and the chock of the adjacent support rolls. With small movements of the lower work roll in the vertical direction, the bending means are supported between the chocks of the lower work roll and thickening of bars of the roll stand.
  • the axial displacement devices do not need to take up any tilting moments otherwise to be considered in displacement systems which are stationarily mounted on the rolling stand. This has a positive effect on the dimensioning of the displacement devices, since a lower displacement force is needed.
  • the publication WO 2005/011885 A1 relates to a rolling device with at least two work rolls, which are each mounted by means of work roll chocks in a rolling stand, wherein at least one of the work rolls in the rolling stand for setting a desired roll gap relative to the other at the work roll, in particular in the vertical direction, is adjustable.
  • axial displacement means are provided which are mounted in the form of two piston-cylinder units in parallel next to the work roll to be displaced, thus offset in height to the longitudinal axis of the rolling stand.
  • the publication EP 1 772 203 A1 describes a rolling device for rolling in a rolling stand, with at least one hydraulically actuable piston, which is arranged in a bending block.
  • the publication EP 0 267 420 A2 relates to a rolling stand with a device for the axial displacement of engageable rollers, with piston-cylinder units, which are arranged laterally next to the work roll on the stand spar of the roll stand.
  • EP 0 340 504 A2 is a bending and balancing device for axially displaceable rolls of a rolling stand with a device for axially moving the rollers known.
  • the roll chocks are supported on both sides on a guide block vertically guided upper or lower lifting horizontally slidably.
  • bending devices which are constructed in the manner of a "bending hood".
  • This is a work roll bending system in which hydraulic blocks are provided with so-called “bending hoods” which ensure good guidance of the work roll chocks in the roll stand even at high roll emergence and at the same time enable the relevant work roll to be displaced.
  • the device for the axial displacement of the work rolls is attached to one of the two roll stand.
  • Each lateral support part ("displacement tube") of the respective work roll chocks is assigned a displacement cylinder unit.
  • the work roll chocks are slidably mounted in the vertical direction.
  • the invention is therefore based on the object to provide a rolling device of the type mentioned, which avoids the disadvantage of the first-mentioned type and makes the benefits of the solution discussed below available. So it should avoid the high weight of the last discussed solution and a more cost-effective design can be achieved. It should be possible to realize a high roll rise.
  • the work roll chock for receiving the force generated by the bending means seen from the axis of the work roll side cantilevered arms wherein between a pressure force generating element of the bending means, in particular a piston, and the cantilever arm of the work roll chock a is arranged relative to the rolling stand, in particular in the vertical direction, displaceable pressure transmitting element.
  • the Axialverschiebesch are designed as a hydraulic piston-cylinder unit.
  • the actuating element of the Axialverschiebesch is preferably formed in the form of a piston, wherein the piston is fixed with one of its axial ends on a support arm, which is set on the roll stand in a guide, in particular in a sliding guide, translationally displaceable.
  • the compressive force generating element of the bending means and the cantilever arm of the work roll chock are positioned so that the center axis of the pressure force generating element intersects the cantilevered arm.
  • a sliding surface is preferably arranged.
  • the bending means are advantageously arranged in a block fixedly arranged on the roll stand, and the pressure transmission element is mounted on the block by means of a guide, in particular by means of a vertical guide.
  • the pressure-transmitting element is preferably U-shaped in a horizontal section and surrounds the block at least partially from three sides.
  • the pressure-transmitting element is preferably L-shaped in a vertical section perpendicular to the axis of the work roll and at least partially surrounds the block on its upper side.
  • the pressure transmission element can be mounted on the rolling stand by means of a guide, in particular 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 immovable in the horizontal direction to the work roll on the block.
  • an axial displacement device is used, which is arranged coaxially to the axis of the work roll.
  • the bending device used at the same time is designed according to the design of the "bending hood”.
  • a rolling device 1 in which two cooperating work rolls 2 and 3, which are respectively mounted in a work roll chock 4 and 5, are arranged in a rolling stand 6.
  • the upper work roll chock 5 is made adjustable in the vertical direction; It can therefore be moved in the vertical direction relative to the rolling stand 6.
  • the work rolls 2, 3 are supported respectively on support rollers 24 and 25, wherein these are each mounted in a backup roll chock 26 and 27 respectively.
  • the illustrated rolling device 1 thus has a total of four rollers. It should be noted that it may also comprise further rolls, namely intermediate rolls, which are arranged between the work rolls 2, 3 and the support rolls 24, 25.
  • bending means 11 are provided to initiate a bending moment in the work rolls 2, 3 bending means 11 are provided. As in particular in Fig. 3 can be seen, the bending means 11 are arranged in both axial end portions of the work rolls 2, 3 and, moreover, arranged on both the inlet and the outlet side of the roll stand 6 (see Fig. 2 ). There are a total of four bending means 11 are provided.
  • the bending means 11 have a block 20 which is fixedly arranged on the roll stand 6, as in particular in Fig. 2 can be seen.
  • the block 20 has cylindrical bores in which pressure force generating elements 14, ie pistons, are arranged, which are acted upon by hydraulic pressure.
  • the pistons 14 have a center axis 18 which extends in the vertical direction.
  • each work roll chock 4, 5 has cantilevered arms 12 and 13 arranged laterally of the axis 10 of the work roll 2, 3.
  • the cantilevered arms 12, 13 extend laterally outwardly away from the work roll 2, 3 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 in particular the piston 14 and the cantilevered arms 12, 13 of the work roll chocks 4, 5.
  • This is equipped with two sliding surfaces 19 and 28, which ensure good sliding conditions between piston 14 and pressure transmission element 15 on the one hand and between pressure transmitting element 15 and cantilever arm 12, 13.
  • the piston 14 and cantilever arm 12, 13 are positioned so that the center axis 18 of the piston 14 intersects the cantilever arm 12, 13.
  • the pressure transmission element 15 is arranged via a vertical guide 29 on the block 20 and can thus move in the vertical direction relative to the block 20 and thus to the rolling stand 6. Similarly, a further vertical guide is provided which guides the pressure transmission element 12 in the upper region on the roll stand 6, namely a crosshead of the pressure transmission element 15th
  • the pressure transmission element 15 is designed as a "bending hood". This means that it is U-shaped in a horizontal section and at least partially surrounds the block 20 from three sides, as best shown in FIG Fig. 3 you can see.
  • Out Fig. 2 goes out, however, that the pressure transmitting element 15 is formed in a perpendicular to the axis 10 of the work roll 2, 3 vertical section L-shaped and partially surrounds the block 20 on its upper side.
  • the pressure transmitting member 15 against axial displacement forces vertically slidably arranged but tilt-proof on the sides of the block 20.
  • it is supported on the working roll 2 facing end face of the block 20 and thus can accommodate large horizontal forces that may be directed in the inlet against and in the outlet with the rolling direction.
  • the pressure transmission element 15 is provided in or against the rolling direction with further sliding surfaces which are located on its legs, via which a support on the side facing the work roll 2 faces of the roll stand 6 can take place.
  • holding means 23 are provided (see FIG. Fig. 3 ).
  • the holding means 23 prevent the pressure-transmitting element 15 from being displaceable in the direction of the roll axis 10.
  • the work roll displacement devices are hydraulic piston-cylinder units arranged on the service-side work roll chocks. It is the Piston of the piston-cylinder unit connected to guided in the corresponding chocks support arms. Latches, which are arranged on the outside of the two spars of the service-side roll stand, prevent during the rolling operation, a horizontal movement of the support arms and thus also an axial movement of the piston. By pressurizing on the piston side or the rod side of the piston-cylinder unit, an axial displacement of the work rolls mounted in the chocks is realized.
  • the bending device is characterized by hydraulic blocks with "Biegehauben", which ensures good management of the work roll chocks in the rolling stand even at high roll and at the same time allows shifting of the relevant work roll for targeted change in profile of the rolling gap passing rolling 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)
  • Machine Tool Units (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)

Claims (8)

  1. Dispositif de laminage (1) comprenant: au moins deux cylindres de travail (2, 3) qui sont montés respectivement au moyen d'au moins un élément de montage de cylindre de travail (4, 5) dans une cage de laminage (6), au moins un des cylindres de travail (2, 3) dans la cage de laminage (6) peut être réglé pour le réglage d'une emprise désirée (7) par rapport à l'autre cylindre de travail (2, 3), en particulier en direction verticale, au moins un des cylindres de travail (2, 3) étant monté en liaison active avec des moyens de flexion (11) avec lesquels il peut être sollicité avec un moment de flexion, l'élément de montage de cylindre de travail (4, 5) présentant des bras (12, 13) faisant saillie latéralement par rapport à l'axe (10) du cylindre de travail (2, 3) pour l'absorption de la force générée par les moyens de flexion, un élément de transmission de la pression (15) apte à se déplacer par rapport à la cage de laminage (6), en particulier en direction verticale, étant disposé entre un élément (14) des moyens de flexion (11), générant une force de pression, en particulier un piston, et le bras (12, 13) saillant de l'élément de montage de cylindre de travail (4, 5) ; et des moyens de déplacement axial (8) qui sont réalisés sous la forme d'une unité hydraulique du type à piston-cylindre, caractérisé en ce que les moyens de déplacement axial (8) sont disposés avec un élément d'activation (9) sous la forme d'un piston, en position coaxiale par rapport à l'axe (10) du cylindre de travail (2, 3) à déplacer, et l'élément d'activation (9) est fixé avec une de ses extrémité axiales à un bras de maintien (16) qui est fixé en déplacement de translation à la cage de laminage (6) dans un guidage (17), en particulier dans un guidage par glissement.
  2. Dispositif de laminage selon la revendication 1, caractérisé en ce que l'élément (14) des moyens de flexion (11), générant la force de compression et le bras saillant (12, 13) de l'élément de montage de cylindre de travail (4, 5) sont positionnés de telle sorte que l'axe médian (18) de l'élément (14) générant la force de pression coupe le bras saillant (12, 13).
  3. Dispositif de laminage selon la revendication 1 ou 2, caractérisé en ce qu'une surface de glissement (19) est disposée entre l'élément (14) des moyens de flexion (11), générant une force de pression et l'élément de transmission de la pression (15) et/ou entre l'élément de transmission de la pression (15) et le bras saillant (12, 13) de l'élément de montage de cylindre de travail (4, 5).
  4. Dispositif de laminage selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les moyens de flexion (11) sont disposés dans un bloc (20) monté à demeure contre la cage de laminage (6) et l'élément de transmission de la pression (15) est monté au moyen d'un guidage (21), en particulier au moyen d'un guidage vertical, contre le bloc (20).
  5. Dispositif de laminage selon la revendication 4, caractérisé en ce que l'élément de transmission de la pression (15) est réalisé en une configuration en U en section horizontale et entoure au moins en partie le bloc (20) de trois côtés.
  6. Dispositif de laminage selon la revendication 4 ou 5, caractérisé en ce que l'élément de transmission de la pression (15) est réalisé en une configuration en L en section verticale, perpendiculairement par rapport à l'axe (10) du cylindre de travail (2, 3) et entoure au moins en partie le bloc (20) sur son côté supérieur.
  7. Dispositif de laminage selon l'une quelconque des revendications 4 à 6, caractérisé en ce que l'élément de transmission de la pression (15) est monté au moyen d'un guidage (22), en particulier au moyen d'un guidage vertical, contre la cage de laminage (6).
  8. Dispositif de laminage selon l'une quelconque des revendications 4 à 7, caractérisé en ce que des moyens de maintien (23) sont disposés entre le bloc (20) et l'élément de transmission de la pression (15), qui maintiennent l'élément de transmission de la pression (15) contre le bloc (20) en immobilité en direction horizontale par rapport au cylindre de travail (2,3).
EP09777547.2A 2008-07-30 2009-07-30 Dispositif de laminage Active EP2307152B1 (fr)

Applications Claiming Priority (2)

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

Publications (2)

Publication Number Publication Date
EP2307152A2 EP2307152A2 (fr) 2011-04-13
EP2307152B1 true EP2307152B1 (fr) 2013-07-10

Family

ID=41461540

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09777547.2A Active EP2307152B1 (fr) 2008-07-30 2009-07-30 Dispositif de laminage

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)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1772203A1 (fr) * 2005-10-10 2007-04-11 VAI Industries (UK) Limited Dispositif pour le cintrage de cylindres
DE102008009902A1 (de) * 2008-02-19 2009-08-27 Sms Demag Ag Walzvorrichtung, insbesondere Schubwalzengerüst
DE102009058876A1 (de) * 2009-01-23 2010-07-29 Sms Siemag Ag Biege- und Ausbalanciervorrichtung für axial verschiebbare Arbeitswalzen eines Walzgerüstes
ITMI20101502A1 (it) * 2010-08-05 2012-02-06 Danieli Off Mecc Sistema integrato di bending e shifting sotto carico per gabbie ad elevata apertura tra i rulli di lavoro
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
JP6534453B2 (ja) * 2016-01-14 2019-06-26 株式会社Ihi 圧延装置及び圧延装置の改造方法
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
KR102639990B1 (ko) * 2018-03-28 2024-02-27 신토고교 가부시키가이샤 전동 리프트 장치 및 전동 리프트 장치를 구비한 롤 프레스 장치
KR102395476B1 (ko) 2022-01-07 2022-05-06 김형태 스프링 방식의 압연롤 갭 조절장치

Family Cites Families (11)

* 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
DE3638330A1 (de) * 1986-11-10 1988-05-19 Schloemann Siemag Ag Walzgeruest mit einer vorrichtung zum axialen verschieben von anstellbaren walzen
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
AP2091A (en) * 1999-03-04 2010-01-18 Zheng Hongzhuan A rolling mill with roll deflection bi-dimensionally controlled.
DE10150690A1 (de) * 2001-10-17 2003-04-30 Sms Demag Ag Walzvorrichtung
DE10334727A1 (de) * 2003-07-30 2005-02-24 Sms Demag Ag Walzvorrichtung
DE10334682A1 (de) * 2003-07-30 2005-02-17 Sms Demag Ag Walzvorrichtung
EP1772203A1 (fr) * 2005-10-10 2007-04-11 VAI Industries (UK) Limited Dispositif pour le cintrage de cylindres

Also Published As

Publication number Publication date
CN102112245B (zh) 2014-06-25
UA99776C2 (en) 2012-09-25
RU2461434C1 (ru) 2012-09-20
CN102112245A (zh) 2011-06-29
EP2307152A2 (fr) 2011-04-13
ES2426464T3 (es) 2013-10-23
DE102008035702A1 (de) 2010-02-04
US20110132055A1 (en) 2011-06-09
JP2011529399A (ja) 2011-12-08
WO2010012465A2 (fr) 2010-02-04
WO2010012465A3 (fr) 2010-05-14
KR20110029172A (ko) 2011-03-22
KR101268320B1 (ko) 2013-05-28

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