EP3906122A1 - Walzvorrichtung - Google Patents
WalzvorrichtungInfo
- Publication number
- EP3906122A1 EP3906122A1 EP19816577.1A EP19816577A EP3906122A1 EP 3906122 A1 EP3906122 A1 EP 3906122A1 EP 19816577 A EP19816577 A EP 19816577A EP 3906122 A1 EP3906122 A1 EP 3906122A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- bending
- block
- rolling device
- fixed block
- bending block
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- 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
-
- 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 a stand, at least two rolls which are attached to the stand by means of chocks and are displaceable in the axial direction relative to one another, 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 displacement device comprises a fixed block, a displaceable bending block and a displacement cylinder with which the bending block can be displaced relative to the fixed block.
- rolls e.g. work rolls and / or back-up rolls
- rolls can be used in rolling devices which are axially displaced relative to one another in order to thereby set different roll gap profiles.
- This is known for example from EP 1 648 626 B1 or EP 1 436 104 B1.
- an axial displacement device is used, which e.g. can act on the work rolls of a rolling device or on its work roll chocks, for the purpose of said displacement e.g. of the work rolls.
- a conventional axial displacement device 8 of a rolling device is shown in FIGS. 4 and 5.
- This device comprises a one-piece fixed block 10 (cf. FIG. 4) with a central guide web 11 which runs horizontally. Above and below this guide web 10 retaining strips 17, 18 are formed on the fixed block.
- the one-piece fixed block 10, which consists of the central guide web 11 and the two holding strips 17, 18, is produced 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 both sides of the central guide web 1 1 of the fixed block 10, and slidably guided between the guide web 1 1 and the outer retaining strips 17, 18. Shift cylinders 14 are accommodated within the bending blocks 12, 13, the piston rods 15 of which are fixed with an end plate 20 attached to the fixed block 10 are connected. By actuating these displacement cylinders 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 illustrated in the perspective view of FIG. 5.
- the fixed block 10 is, as explained, made in one piece, usually as a forging, with the disadvantage of high raw part costs and limited availability in the event of a need for repair.
- Flinzu adds that the manufacture and assembly of this one-piece fixed block 10 are complex.
- the design of this forged part is based on the highly loaded guide web 11, along which the two bending blocks 12, 13 are displaceably 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 makes hose connections necessary for these shift cylinders in order to supply the necessary equipment (e.g. hydraulic oil).
- the integration of the displacement cylinders within the bending blocks also means that these blocks have a long construction in accordance with the flub of the displacement cylinders and thus disadvantageously take up a large installation space. Maintenance or repair of the displacement cylinders requires dismantling of the bending blocks, whereby the axial displacement system has to be dismantled almost completely using an expansion device. This also leads to high costs.
- a rolling device serves to be able to variably adjust a roll gap in the rolling operation.
- Such a rolling device comprises a stand, at least two rolls which can be attached to the stand by means of chocks and can be displaced in the axial direction relative to one another, 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 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 made up of several parts.
- the invention is based on the essential finding that, due to the multi-part design of the fixed block, it is possible to design only the middle part thereof, which serves to guide and accommodate the displaceable bending blocks.
- the fixed block - as the central part - has a central sliding bracket which has the properties required for folding and guiding the bending blocks.
- this shifting bracket can be designed as a single part, in particular in the form of a forged part, or made from forged rod material.
- the edge areas of the fixed block which can be formed separately from the sliding bracket as folding strips, can be made as separate single parts, in particular from inexpensive sheet metal, because these folding strips - as their name - only assume a folding function of the bending blocks.
- the multi-part fixed block thus comprises three functional areas, which are formed in detail from the sliding bracket and the two outer (upper + lower) folding strips.
- the rolling device comprises a stand, at least two rolls which can be attached to the stand by means of chocks and can be displaced in the axial direction relative to one another, 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 mounting piece, 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 associated shift cylinder is flanged to an end plate connected to the fixed block, a piston rod of the shift cylinder interacting with the bending block.
- the shift cylinders used here can be standard cylinders that can be inexpensively procured as purchased parts. This shift cylinder can be kept in reserve as a spare part, which leads to improved maintenance and repair friendliness for the invention.
- Another advantage of this external arrangement of the shift cylinders, i.e. outside the bending blocks, is that an axial length of the bending blocks in the direction of their direction of displacement can thus be chosen to be smaller, because this length is almost independent of the displacement stroke. A more compact design for the bending blocks is advantageously achieved in this way.
- a displacement cylinder preferably the displacement cylinders
- a displacement cylinder is / are equipped (in each case) with fixed piping for the purpose of supplying operating materials, for example hydraulic oil.
- operating materials for example hydraulic oil.
- the associated displacement cylinder can be flanged to a front plate connected to the fixed block outside of a bending block, a piston rod of the displacement cylinder interacting with the bending block.
- Fig. 1 is a perspective view of two side rails of an inventive
- FIG. 2 shows a perspective view of a fixed block, as part of an axial displacement device which is used in the rolling device of FIG. 1, FIG.
- Fig. 3 is a perspective view of an axial displacement device, which in the
- FIG. 4-5 different views of a conventional axial displacement device and parts thereof.
- FIGS. 1 to 3 A preferred embodiment of a rolling device 100 according to the invention is shown and explained below with reference to FIGS. 1 to 3, in which a (not shown) roll gap in the rolling operation of the rolling device 100 is variably set by means of an axial displacement device 108 (see FIG. 3) can.
- the same features in the drawing are provided with the same reference numerals. At this point, it is pointed out separately that the drawing is only simplified and in particular is shown without a scale.
- 1 shows an example of the rolling device 100, which is designed as a so-called four-high system, in which two work rolls 104, 105 and two support rolls (not shown) are provided on a stand 102. Alternatively, a different number of rollers is possible, e.g.
- a roll gap is formed between the work rolls 104, 105 for the material or metal strip to be rolled.
- the profile of this nip is set by adjusting the work rolls 104, 105.
- the profile of the roll gap can be suitably set using the axial displacement device 108.
- the two work rolls 104, 105 are held in the stand 102 of the rolling device 100, the spars 9 also being one Stand of this scaffold 102 are shown. At least one of the work rolls 104, 105 can be displaced in the direction of its axial extent by the axial displacement device 108. Further details of this axial displacement device 108 are explained in detail below.
- the axial displacement device 108 - as can be seen from the perspective view of FIG. 2 - comprises a fixed block 1 10, which is formed in several parts, namely in the form of a central displacement bracket 1 16 and, separately therefrom, two separate folding strips in the form of an upper holding strip 11 and a lower holding strip 1 18.
- the folding strips 1 17, 1 18 are mounted on the roll stands of the stand 103 of the rolling device 100 (cf. FIG. 1).
- the axial displacement device 108 comprises displaceable bending blocks, namely an upper bending block 1 12 and a lower bending block 1 13, these bending blocks 1 12, 1 13 being displaceably guided along the displacement bracket 1 16.
- the upper bending block 1 12 is arranged between the sliding bracket 116 and the upper holding bar 11 17, the lower bending block 1 13 being arranged between the sliding bracket 1 16 and the lower holding bar 11 18. This is shown in the perspective view of FIG. 3.
- displacement cylinders 1 14 are provided, which are arranged outside the bending blocks 1 12, 1 13 and flanged to an end plate 120 connected to the fixed block 1 10.
- the piston rods of the displacement cylinder 1 14 pass through the end plate 120 and are attached to the bending blocks 1 12, 1 13.
- the bending blocks 1 12, 1 13 of the axial displacement device 108 can be assigned work roll chocks (not shown) and act on these chocks when the displacement cylinders 1 14 are actuated. Moving the bending blocks 1 12, 1 13 thus leads to a corresponding axial displacement of the work rolls 104, 105, as a result of which a desired profile of the roll gap is achieved.
- a bending cylinder 122 is accommodated in each of the bending blocks 1 12, 1 13 (see FIG. 3), with which a specific bending of an assigned work roll is achieved. 3, only the head of such a bending cylinder 122 can be seen.
- a supply of the shift cylinders 1 14 with operating means, in particular with hydraulic oil, can be achieved by piping (not shown), which is preferably permanently or permanently connected to the shift cylinders 1 14.
- the bending blocks 112, 113, on the one hand, and the displacement cylinders 114, on the other hand, have a modular structure 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.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Metal Rolling (AREA)
Abstract
Description
Claims
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 (de) | 2019-01-02 | 2019-12-02 | Walzvorrichtung |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP3906122A1 true EP3906122A1 (de) | 2021-11-10 |
| EP3906122B1 EP3906122B1 (de) | 2023-02-08 |
Family
ID=68808315
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19816577.1A Active EP3906122B1 (de) | 2019-01-02 | 2019-12-02 | Walzvorrichtung |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12128465B2 (de) |
| EP (1) | EP3906122B1 (de) |
| JP (1) | JP7189346B2 (de) |
| CN (1) | CN113260466B (de) |
| DE (1) | DE102019200005A1 (de) |
| WO (1) | WO2020141033A1 (de) |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57194701U (de) * | 1981-06-05 | 1982-12-10 | ||
| DE3331055C2 (de) | 1983-08-29 | 1994-11-03 | Schloemann Siemag Ag | Walzgerüst mit axial verschieblichen Arbeitswalzen |
| DE3529364A1 (de) | 1985-08-16 | 1987-02-19 | Schloemann Siemag Ag | Antriebsvorrichtung zur axialen verschiebung von walzen eines walzgeruestes |
| 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 |
| 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 |
| 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 |
| 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 |
| BR112012027654B1 (pt) | 2011-09-20 | 2018-03-13 | Mitsubishi-Hitachi Metals Machinery, Inc. | Laminador a frio para laminar uma tira de aço, sistemas de laminação em tandem e de laminação inversor, e, métodos de modificação de um sistema de laminação e operacional de um laminador a frio |
| 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 |
-
2019
- 2019-01-02 DE DE102019200005.3A patent/DE102019200005A1/de active Pending
- 2019-12-02 JP JP2021529780A patent/JP7189346B2/ja active Active
- 2019-12-02 EP EP19816577.1A patent/EP3906122B1/de active Active
- 2019-12-02 US US17/420,485 patent/US12128465B2/en active Active
- 2019-12-02 WO PCT/EP2019/083214 patent/WO2020141033A1/de not_active Ceased
- 2019-12-02 CN CN201980086018.9A patent/CN113260466B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| JP2022509824A (ja) | 2022-01-24 |
| CN113260466A (zh) | 2021-08-13 |
| US20220088655A1 (en) | 2022-03-24 |
| US12128465B2 (en) | 2024-10-29 |
| CN113260466B (zh) | 2023-06-23 |
| EP3906122B1 (de) | 2023-02-08 |
| JP7189346B2 (ja) | 2022-12-13 |
| DE102019200005A1 (de) | 2020-07-02 |
| WO2020141033A1 (de) | 2020-07-09 |
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