EP3906122B1 - Dispositif de laminage - Google Patents

Dispositif de laminage Download PDF

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Publication number
EP3906122B1
EP3906122B1 EP19816577.1A EP19816577A EP3906122B1 EP 3906122 B1 EP3906122 B1 EP 3906122B1 EP 19816577 A EP19816577 A EP 19816577A EP 3906122 B1 EP3906122 B1 EP 3906122B1
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EP
European Patent Office
Prior art keywords
displacing
rolling device
bending
block
bending block
Prior art date
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Active
Application number
EP19816577.1A
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German (de)
English (en)
Other versions
EP3906122A1 (fr
Inventor
Peter REBESCHIES
Sebastian BÖCKING
Hendrik Langer
Christian Hehmann
Guido Fick
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
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SMS Group GmbH
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Publication date
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Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP3906122A1 publication Critical patent/EP3906122A1/fr
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    • 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
    • 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

Definitions

  • the invention relates to a rolling device with a stand, at least two rolls which are attached to the stand by means of chocks and can be displaced relative to one another in the axial direction, and at least one axial displacement device which is assigned to a chock of at least one of the rolls and can act on this chock .
  • the axial shifting device comprises a fixed block, a shiftable bending block and a shifting cylinder with which the bending block can be shifted relative to the fixed block.
  • rolls eg work rolls and/or back-up rolls
  • rolls can be used in rolling devices, which are shifted axially relative to one another in order to set different roll gap profiles.
  • this is off EP 1 648 626 B1 or EP 1 436 104 B1 known.
  • An axial displacement device is used here, which can act, for example, on the work rolls of a rolling device or on its work roll chocks, for the purpose of the mentioned displacement, for example of the work rolls.
  • the preamble of claim 1 is based on AT 509 455 A4 .
  • a conventional axial displacement device 8 of a rolling device is shown.
  • This device comprises a one-piece fixed block 10 (cf. 4 ) with a central guide bar 11, which runs horizontally. Above and below this guide web 10 retaining strips 17, 18 are formed on the fixed block.
  • the one-piece solid block 10, which consists of the central guide web 11 and the two retaining strips 17, 18 is made as a T-shaped forged part.
  • the conventional axial displacement device 8 has an upper bending block 12 and a lower bending block 13 .
  • These bending blocks 12, 13 are each arranged on either side of the central guide web 11 of the fixed block 10, and are slidably guided between the guide web 11 and the outer holding strips 17, 18.
  • each displacement cylinder 14 are accommodated, the piston rods 15 fixed to an end plate 20 attached to the fixed block 10 are connected.
  • this displacement cylinder 14 By actuating this displacement cylinder 14, a displacement of the two bending blocks 12, 13 relative to the fixed block 10 or its central guide web 11 is achieved. This is in the perspective view of figure 5 illustrated.
  • the fixed block 10 is designed in one piece, usually as a forged piece, this has the disadvantage of high raw part costs and limited availability if repairs are required. In addition, the production and assembly of this one-piece fixed block 10 is expensive.
  • the design of this forged part is based on the highly stressed guide web 11, along which the two bending blocks 12, 13 are slidably guided.
  • this conventional axial displacement device 8 Another disadvantage of this conventional axial displacement device 8 is that the displacement cylinders are integrated within the movable bending blocks 12,13. This necessitates hose connections for these shifting cylinders for the purpose of supplying the necessary operating resources (e.g. hydraulic oil).
  • the integration of the shifting cylinders within the bending blocks also means that these blocks are long in accordance with the stroke of the shifting cylinders and thus disadvantageously require a large amount of space.
  • Servicing or repairing the shifting cylinder requires dismantling the bending blocks, with the axial shifting system having to be almost completely dismantled using a dismantling device. This also disadvantageously leads to high costs.
  • the invention is based on the object of creating a rolling device in which an axial displacement device for adjusting the rolls can be produced with less effort and at lower cost.
  • a rolling device serves to be able to variably set a roll gap during rolling operation.
  • Such a rolling device comprises a stand, at least two rolls, which are attached to the stand by means of chocks and can be displaced relative to one another in the axial direction, and at least one axial displacement device which is associated with a chock of at least one of the rolls and can act on this chock.
  • the axial displacement device has a fixed block, at least one displaceable bending block and at least one displacement cylinder assigned to the bending block, with which the bending block can be displaced relative to the fixed block.
  • the fixed block is designed in several parts.
  • the invention is based on the essential knowledge that, due to the multi-part design of the fixed block, it is possible to design accordingly only its central part, which is used to guide and accommodate the movable bending blocks. It is expedient here if the fixed block--as the central part--has a central sliding bracket which has the necessary properties for holding and guiding the bending blocks.
  • this sliding console can be designed as an individual part, in particular in the form of a forged part, or can be made from forged rod material.
  • the edge areas of the fixed block which can be designed separately from the shifting console as holding strips, can be made as separate simple parts, in particular from inexpensive sheet metal, because these holding strips - as their name suggests - only take on a holding function for the bending blocks.
  • the multi-part fixed block thus comprises three functional areas, which are formed in detail from the sliding console and the two outer (upper + lower) holding strips.
  • the rolling device comprises a stand, at least two rolls that are attached to the stand by means of chocks and can be displaced relative to one another in the axial direction, and at least one axial displacement device that is assigned to a chock of at least one of the rolls and on this chock can act, the axial displacement device having a fixed block, at least one displaceable bending block and at least one displacement cylinder assigned to the bending block, with which the bending block can be displaced relative to the fixed block.
  • the shifting cylinder associated therewith is flanged to an end plate connected to the fixed block, with a piston rod of the shifting cylinder interacting with the bending block.
  • the displacement cylinders used here can be standard cylinders that can be procured inexpensively as a purchased part. As a result, these displacement cylinders can be kept available as a spare part, which leads to improved maintenance and repair friendliness for the invention.
  • a further advantage of this external arrangement of the shifting cylinders, i.e. outside of the bending blocks, is that an axial length of the bending blocks can be selected to be smaller in the direction of their shifting direction, because this length is almost independent of the shifting stroke. This advantageously achieves a more compact design for the bending blocks.
  • a displacement cylinder preferably the displacement cylinders, is/are (each) equipped with fixed tubing for the purpose of supplying operating resources, for example hydraulic oil.
  • operating resources for example hydraulic oil.
  • the shifting cylinder assigned thereto can be flanged to an end plate connected to the fixed block, with a piston rod of the shifting cylinder interacting with the bending block.
  • 1 1 shows an example of the rolling device 100, which is designed as a so-called four-high plant, in which two work rolls 104, 105 and adjacent thereto two back-up rolls (not shown) are provided on a stand 102.
  • a different number of rolls is also possible, for example in the form of a six-high system, in which additional intermediate rolls are provided between the working rolls and the back-up rolls.
  • a roll gap for the material or metal strip to be rolled is formed between the work rolls 104, 105.
  • the profile of this nip is adjusted by adjusting the work rolls 104, 105.
  • the profile of the nip can be suitably adjusted with the aid of the axial displacement device 108 .
  • the two work rolls 104, 105 held, also the spars 9 one Stand of this framework 102 are shown. At least one of the work rolls 104, 105 can be shifted in the direction of its axial extent by the axial shifting device 108. Further details of this axial displacement device 108 are explained in detail below.
  • the axial displacement device 108 - as seen in the perspective view of FIG 2 can be seen - includes a fixed block 110, which is designed in several parts, namely in the form of a central sliding bracket 116 and, separately from it, two separate holding strips in the form of an upper holding strip 117 and a lower holding strip 118.
  • the holding strips 117, 118 are on the roll stands of the stand 103 of the Rolling device 100 (cf. 1 ) assembled.
  • the axial displacement device 108 comprises displaceable bending blocks, namely an upper bending block 112 and a lower bending block 113, these bending blocks 112, 113 being guided in a displaceable manner along the displacement console 116.
  • the upper flexure block 112 is positioned between the traversing bracket 116 and the upper support slat 117
  • the lower flexure block 113 is positioned between the traversing bracket 116 and the lower support slat 118 . This is in the perspective view of 3 shown.
  • Shifting cylinders 114 are provided for shifting the bending blocks 112, 113 along the shifting console 116, which are arranged outside of the bending blocks 112, 113 and are flanged to an end plate 120 connected to the fixed block 110.
  • the piston rods of the displacement cylinders 114 pass through the end plate 120 and are attached to the bending blocks 112,113. Actuation of the displacement cylinders 114 causes the bending blocks 112, 113 to be displaced as intended along the displacement console 116 or relative thereto.
  • the bending blocks 112, 113 of the axial shifting device 108 can be assigned to work roll chocks (not shown) and act on these chocks when the shifting cylinders 114 are actuated.
  • displacement of the bending blocks 112, 113 results in a corresponding axial displacement of the work rolls 104, 105, thereby achieving a desired roll gap profile.
  • a bending cylinder 122 is accommodated in each of the bending blocks 112, 113 (cf. 3 ), with which a targeted bending of an associated work roll is achieved. In the representation of 3 only the head of such a bending cylinder 122 can be seen.
  • the shifting cylinders 114 can be supplied with operating resources, in particular with hydraulic oil, by means of piping (not shown), which is preferably firmly or permanently connected to the shifting cylinders 114 .
  • the bending blocks 112, 113 on the one hand and the displacement cylinders 114 on the other hand are of modular design and are therefore designed as independent structural units. This enables simple and inexpensive assembly of the axial displacement device 108 and, if necessary, also a possible replacement of these structural units in the event of necessary repairs or maintenance of the rolling device 100 according to the invention.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)

Claims (10)

  1. Dispositif de laminage (100) qui comprend :
    une cage (102) ;
    au moins deux cylindres (104-105) qui sont appliqués contre la cage (102) au moyen d'empoises et qui sont aptes à se déplacer l'un par rapport à l'autre dans la direction axiale ; et
    au moins un dispositif de déplacement axial (108) qui est attribué à une empoise d'au moins un des cylindres (104-105) et qui peut agir sur cette empoise ;
    dans lequel le dispositif de déplacement axial (108) présente un bloc fixe (110) qui est réalisé en plusieurs parties, au moins un bloc de cintrage mobile (112, 113) et au moins un vérin de report (114) qui est attribué au bloc de cintrage (112, 113), avec lequel le bloc de cintrage peut être déplacé par rapport au bloc fixe (110) ;
    caractérisé
    en ce que le bloc fixe (110) présente un support de déplacement médian (116) et deux barrettes de maintien (117, 118) qui sont séparées du dernier cité, qui sont montées en position adjacente au support de déplacement (116) respectivement au-dessus et en dessous de ce dernier, ainsi que contre des montants de laminoir de la cage (102) ; dans lequel le support de déplacement médian (116) est réalisé sous la forme d'une pièce détachée.
  2. Dispositif de laminage (100) selon la revendication 1, caractérisé en ce que le support de déplacement médian (116) est réalisé sous la forme d'une pièce forgée.
  3. Dispositif de laminage (100) selon la revendication 2, caractérisé en ce que le support de déplacement médian (116) est réalisé sous la forme d'un matériau en barre qui a été forgé.
  4. Dispositif de laminage (100) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les barrettes de maintien (117, 118) sont fabriquées respectivement sous la forme de pièces détachées, en particulier à partir d'une tôle.
  5. Dispositif de laminage (100) selon l'une quelconque des revendications 1 à 4, caractérisé en ce que les barrettes de maintien (117, 118) sont montées contre une traverse (103) d'un montant de laminage de la cage (102).
  6. Dispositif de laminage (100) selon l'une quelconque des revendications 1 à 5, caractérisé en ce que le dispositif de déplacement axial (108) présente un bloc de cintrage supérieur (112) et un bloc de cintrage inférieur (113) ; dans lequel ces deux blocs de cintrage (112, 113) sont disposés respectivement entre le support de déplacement (116) et la barrette de maintien supérieure (117), respectivement la barrette de maintien inférieure (118).
  7. Dispositif de laminage (100) selon la revendication 6, caractérisé en ce que, de manière respective, un vérin de report séparé (114) est attribué au bloc de cintrage supérieur (112) et au bloc de cintrage inférieur (113).
  8. Dispositif de laminage (100) selon l'une quelconque des revendications précédentes, caractérisé en ce que, à l'extérieur d'un bloc de cintrage (112, 113), le vérin de report (114) qui lui est attribué est bridé à une plaque avant (120) qui est reliée au bloc fixe (110) ; dans lequel une tige de piston (115) et du vérin de report (114) est mis en interaction avec le bloc de cintrage (112, 113).
  9. Dispositif de laminage (100) selon la revendication 8, caractérisé en ce que le vérin de report (114) est équipé d'un tubage fixe destiné à l'acheminement de moyens d'exploitation, en particulier sous la forme d'une huile hydraulique.
  10. Dispositif de laminage (100) selon l'une quelconque des revendications précédentes, caractérisé en ce qu'un bloc de cintrage (112, 113) et le vérin de report (114) qui lui est attribué sont construits sous une forme modulaire et sont réalisés respectivement sous la forme d'éléments constitutifs indépendants.
EP19816577.1A 2019-01-02 2019-12-02 Dispositif de laminage Active EP3906122B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019200005.3A DE102019200005A1 (de) 2019-01-02 2019-01-02 Walzvorrichtung
PCT/EP2019/083214 WO2020141033A1 (fr) 2019-01-02 2019-12-02 Dispositif de laminage

Publications (2)

Publication Number Publication Date
EP3906122A1 EP3906122A1 (fr) 2021-11-10
EP3906122B1 true EP3906122B1 (fr) 2023-02-08

Family

ID=68808315

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19816577.1A Active EP3906122B1 (fr) 2019-01-02 2019-12-02 Dispositif de laminage

Country Status (6)

Country Link
US (1) US20220088655A1 (fr)
EP (1) EP3906122B1 (fr)
JP (1) JP7189346B2 (fr)
CN (1) CN113260466B (fr)
DE (1) DE102019200005A1 (fr)
WO (1) WO2020141033A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331055A1 (de) 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen
US4744235A (en) 1985-08-16 1988-05-17 Sms Schloemann-Siemag Aktiengesellschaft Actuator device for axially shifting rolling mill
CN2719433Y (zh) 2004-05-27 2005-08-24 一重集团大连设计研究院 热带钢连轧机窜辊机构
CN202290757U (zh) 2011-09-03 2012-07-04 鞍钢集团工程技术有限公司 一种板带精轧机的工作辊横移装置
EP2572808A1 (fr) 2011-09-20 2013-03-27 Mitsubishi-Hitachi Metals Machinery, Inc. Laminoir à froid, système de laminage en tandem, système de roulement d'inversion, procédé de modification d'un système de roulement et procédé de fonctionnement d'un laminoir à froid

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57194701U (fr) * 1981-06-05 1982-12-10
US4803865A (en) * 1987-07-17 1989-02-14 SMS Schloemann--Siemag Aktiengesellschaft Stand-supported bending device for axially slidable rolls of a multiroll rolling mill
DE4417274C2 (de) * 1994-05-18 2003-04-17 Sms Demag Ag Verfahren zum Betreiben eines Walzgerüstes
DE10150690A1 (de) 2001-10-17 2003-04-30 Sms Demag Ag Walzvorrichtung
DE10334727A1 (de) 2003-07-30 2005-02-24 Sms Demag Ag Walzvorrichtung
CN2818000Y (zh) * 2005-07-14 2006-09-20 朱惠兴 可轴向移动轧辊的六辊式轧机
AT509455B1 (de) * 2010-07-27 2011-09-15 Andritz Ag Maschf Walzgerüst mit walzenlagerung
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

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3331055A1 (de) 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen
US4744235A (en) 1985-08-16 1988-05-17 Sms Schloemann-Siemag Aktiengesellschaft Actuator device for axially shifting rolling mill
CN2719433Y (zh) 2004-05-27 2005-08-24 一重集团大连设计研究院 热带钢连轧机窜辊机构
CN202290757U (zh) 2011-09-03 2012-07-04 鞍钢集团工程技术有限公司 一种板带精轧机的工作辊横移装置
EP2572808A1 (fr) 2011-09-20 2013-03-27 Mitsubishi-Hitachi Metals Machinery, Inc. Laminoir à froid, système de laminage en tandem, système de roulement d'inversion, procédé de modification d'un système de roulement et procédé de fonctionnement d'un laminoir à froid

Also Published As

Publication number Publication date
US20220088655A1 (en) 2022-03-24
CN113260466A (zh) 2021-08-13
JP2022509824A (ja) 2022-01-24
CN113260466B (zh) 2023-06-23
JP7189346B2 (ja) 2022-12-13
DE102019200005A1 (de) 2020-07-02
WO2020141033A1 (fr) 2020-07-09
EP3906122A1 (fr) 2021-11-10

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