EP2995389A1 - Walzgerüst vom Typ Monoblock - Google Patents

Walzgerüst vom Typ Monoblock Download PDF

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Publication number
EP2995389A1
EP2995389A1 EP14290269.1A EP14290269A EP2995389A1 EP 2995389 A1 EP2995389 A1 EP 2995389A1 EP 14290269 A EP14290269 A EP 14290269A EP 2995389 A1 EP2995389 A1 EP 2995389A1
Authority
EP
European Patent Office
Prior art keywords
support rollers
rows
rolls
vertical
cage according
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.)
Withdrawn
Application number
EP14290269.1A
Other languages
English (en)
French (fr)
Inventor
Francis Charre
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria 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
Application filed by Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to EP14290269.1A priority Critical patent/EP2995389A1/de
Priority to ES15179774.3T priority patent/ES2656202T3/es
Priority to EP15179774.3A priority patent/EP2995390B1/de
Priority to CN201510568176.1A priority patent/CN105396875B/zh
Publication of EP2995389A1 publication Critical patent/EP2995389A1/de
Withdrawn legal-status Critical Current

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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
    • B21B13/14—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
    • B21B13/147—Cluster mills, e.g. Sendzimir mills, Rohn mills, i.e. each work roll being supported by two rolls only arranged symmetrically with respect to the plane passing through the working 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
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/22—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal
    • B21B31/30—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by wedges or their equivalent
    • 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
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B21B31/32—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis by liquid pressure, e.g. hydromechanical adjusting

Definitions

  • the present invention relates to a multi-cylinder rolling mill of monobloc type, or monoblock reconstituted by fixed assembly or preloaded or mobile assembly of upper and lower half-cages according to the preamble of claim 1.
  • the present invention consists in increasing on a cage such as cylinders the range and combinations of usable cylinder diameters installed in a "monoblock" cage, monobloc reconstituted by fixed or prestressed assembly or by movable assembly, as well as increasing possible opening of cage between work rolls.
  • An object of the present invention is to allow to be able to move at least one of the rows of support rollers of a rolling mill in monoblock form or monobloc reconstituted by fixed assembly or preloaded or movable assembly while providing a displacement stroke sufficiently high between a tight position and an open cage position.
  • the invention thus proposes a solution from a multi-roll mill stand comprising in a vertical direction an upper frame portion and a lower frame portion integral in one-piece form, each of the frame parts respectively comprising a set of rolls.
  • upper and lower, said upper and lower rolls being composed of rows of support rollers for creating pressure effects on intermediate rolls, themselves creating pressure effects on a pair of work rolls for rolling two faces of a metal product scrolling horizontally when, internally to the frames, the upper and lower roller assemblies are brought to the tight rolling position by first displacement means respectively rectilinear component mainly vertical or even inclined relative to the vertical.
  • the rolling mill cage according to the invention is characterized in that at least one of the rows of support rollers (such as the rows A, D, E, H of the figure 1 ) is coupled to a second displacement means generating a main displacement component of the next row at least one horizontal axis towards the working rolls, said second moving means being activated as soon as the set of lower or upper rolls to which belongs said row of support rollers is brought vertically to the tight rolling position.
  • said first moving means vertical or inclined
  • this first moving means additionally induces a movement of cylinders produced by the second moving means. (horizontal).
  • the second moving means is thus slaved to the first moving means.
  • a set of subclaims also has advantages of the invention related to preferred embodiments of the cage.
  • Figure 3 presents a first embodiment of a multi-roll mill stand comprising in a vertical direction an upper frame portion (B1) and a lower frame portion (B2) integral in one-piece form, each of the frame parts respectively comprising a set of upper and lower rolls, said upper and lower rolls being composed of rows of support rollers (A, B, C, D, E, F, G, H) intended to create pressure effects on intermediate rolls, themselves creating pressure effects on a pair of work rolls for rolling two sides of a horizontally moving metal product (TS) (materialized by both horizontal arrows of the figure 3 ) when, internally to the frames, the upper and lower roller assemblies are brought to the tight rolling position by first displacement means respectively with a predominantly vertical rectilinear component (corners P1, jacks P1 'for a downward movement of the assembly upper cylinders P2 corners for an upward movement of the set of lower cylinders) or rectilinear component inclined relative to the vertical.
  • first displacement means respectively with a predominantly vertical rectilinear component (corners P1,
  • the cage according to the invention provides that at least one of the rows of support rollers (A, D, E, H) is coupled to a second displacement means (F1, EIM1, F2, EIM2) generating a main component of moving the row of rollers along at least one horizontal axis in the direction of the working rolls in addition to the first moving means (vertical / inclined), the said second moving means being activated as soon as the set of lower or upper rolls to which belongs said row of support rollers is brought vertically to the tight rolling position.
  • a second displacement means F1, EIM1, F2, EIM2
  • the second moving means can also ensure a complementary (horizontal) displacement of at least one of the rows of support rollers (A, D , H, E) along a vertical axis.
  • At least one of the rows of support rollers (and ideally two or four rows for a maximum increase of travel distances, here the upper rows A, D and lower E, H horizontally the furthest) is thus or respectively coupled to an intermediate holding member (EIM1, EIM2) providing a positioning of said row of rollers mainly in the vertical (or inclined) and horizontal components.
  • the intermediate support elements have a shape of 'L' bearing points under a bearing roll row section so that one face of the vertical leg of the 'L' is inclined to the vertical.
  • the said intermediate holding element thus comprising an external face inclined relative to the vertical and arranged (movable / sliding) vis-à-vis an inner face (F1, F2) d one of the frames (B1, B2). Thanks to these intermediate holding elements, as soon as the first moving means (vertical or inclined) is activated, the intermediate holding element ascends or descends and sliding and combined horizontal / vertical movement releases or tightens the cylinders between them independently of the action of the other so-called first means of displacement (vertical or inclined) of rolls of the cage such as P1 and / or P1 '.
  • the inner face of the frame is parallel to the inclined outer face of the intermediate holding element (EIM1, EIM2), so that by simply activating the first displacement means (vertical such as P1 and / or P2) on the intermediate holding element, the latter also undergoes a thrust or withdrawal in a horizontal displacement by contact / sliding between pairs of external / internal faces of said holding element intermediate and the frame in contact.
  • first displacement means vertical such as P1 and / or P2
  • Figure 4 presents a second embodiment of the rolling mill cage which mainly comprises the same characteristics as those of the cage according to the figure 3 .
  • the cage according to the figure 3 comprises at least a third horizontal displacement means (P2 ') which is interposed between the outer face of the intermediate holding element (EIM1, EIM2) and the inner face (F1, F2) of the frame (B1, B2).
  • This third means makes it possible to increase the range of possible strokes of the cylinders, but is also intended to provide a pre-adjustment of the disposition of the bearing surfaces of the vertical leg of the "L" of the intermediate holding element (EIM1, EIM2 ), so strong advantageously to create a deformation of the bulge of the generatrix of at least one of the rows of support rollers (E, H) making it possible to make deformed corrections applied to said work rolls and to the frame parts (B1, B2 ).
  • Such third means is arranged to move at least one of the lower rows of support rollers (E, H), ideally to act on the intermediate elements (such as EIM2) of the lower frame B2.
  • At least one other means such as the third means could also be arranged to move at least one of the upper rows of support rollers (A, D).
  • the figure 4 does not represent this last option, because the upper rows of support rollers (A, D) are already moved according to the principle of the figure 3 .
  • the third moving means (P2 ') simply consists of at least one unit actuated by a jack, cam or other actuator.
  • a jack, cam or other actuator In figure 4 it is a vertical cylinder which exerts a thrust on the unit (conical wedge P2 ') in order to cause a horizontal displacement of the intermediate holding element (EIM2) and therefore of the row of associated support rollers (E ).
  • such third displacement means (P2 ') is installed at least one or ideally two or four rows of support rollers farthest horizontally working rolls (E, H) or (A, D ) or (E, H, A, D. It thus allows from the top and the bottom of the frame a simple control of the second means of horizontal displacement of the rows of support rollers.
  • said third displacement means (P2 ') can advantageously move each of the rollers of a row of support rollers in a predetermined position to correct all or part of (deformed) profile deflections of the work rolls and / or or cage frame parts (B1, B2) subjected to the rolling forces.
  • means for returning and balancing the rows of support rollers are coupled to the holding elements (EIM1, EIM2) in order to effectively move the work rolls from their clamping position, again with the aim of guaranteeing a spacing maximum between said cylinders in the loose position.
  • EIM1, EIM2 holding elements

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)
  • Metal Rolling (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
EP14290269.1A 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock Withdrawn EP2995389A1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP14290269.1A EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock
ES15179774.3T ES2656202T3 (es) 2014-09-10 2015-08-05 Caja de laminación de tipo monobloque
EP15179774.3A EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock
CN201510568176.1A CN105396875B (zh) 2014-09-10 2015-09-08 整体式轧机架

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14290269.1A EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock

Publications (1)

Publication Number Publication Date
EP2995389A1 true EP2995389A1 (de) 2016-03-16

Family

ID=51625973

Family Applications (2)

Application Number Title Priority Date Filing Date
EP14290269.1A Withdrawn EP2995389A1 (de) 2014-09-10 2014-09-10 Walzgerüst vom Typ Monoblock
EP15179774.3A Active EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP15179774.3A Active EP2995390B1 (de) 2014-09-10 2015-08-05 Walzgerüst vom typ monoblock

Country Status (3)

Country Link
EP (2) EP2995389A1 (de)
CN (1) CN105396875B (de)
ES (1) ES2656202T3 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108655183B (zh) * 2017-03-30 2020-10-27 宝山钢铁股份有限公司 一种判断十八辊轧机工作辊状态的方法及基于此的应用
CN113546965B (zh) * 2021-08-13 2024-08-30 宝鸡市荣豪钛业有限公司 一种轧机辊系的背衬辊结构

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015907A (en) * 1978-02-23 1979-09-19 Sendzimir Inc T Improvements in cluster mills
US4656855A (en) * 1984-10-22 1987-04-14 Kabushiki Kaisha Kobe Seiko Sho Crown control method for a multi-roll rolling mill
DE4131571A1 (de) * 1991-09-23 1993-03-25 Sundwiger Eisen Maschinen Walzenstuetzvorrichtung zur korrektur des walzenspaltes in einem vielwalzen-walzgeruest fuer baender
US20120318030A1 (en) 2011-06-16 2012-12-20 Remn-Min Guo Split Housing Cluster Mill Designed for Temper and Cold Rolling

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100579681C (zh) * 2008-01-25 2010-01-13 中冶陕压重工设备有限公司 用于十二辊可控辊形轧机的辊形调整机构
CN103341493B (zh) * 2013-07-11 2016-01-20 陶洪瑞 十八辊轧机工作辊侧支撑的油缸斜铁调整装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2015907A (en) * 1978-02-23 1979-09-19 Sendzimir Inc T Improvements in cluster mills
US4656855A (en) * 1984-10-22 1987-04-14 Kabushiki Kaisha Kobe Seiko Sho Crown control method for a multi-roll rolling mill
DE4131571A1 (de) * 1991-09-23 1993-03-25 Sundwiger Eisen Maschinen Walzenstuetzvorrichtung zur korrektur des walzenspaltes in einem vielwalzen-walzgeruest fuer baender
US20120318030A1 (en) 2011-06-16 2012-12-20 Remn-Min Guo Split Housing Cluster Mill Designed for Temper and Cold Rolling

Also Published As

Publication number Publication date
EP2995390A1 (de) 2016-03-16
EP2995390B1 (de) 2017-10-18
ES2656202T3 (es) 2018-02-26
CN105396875B (zh) 2019-07-16
CN105396875A (zh) 2016-03-16

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