EP0808673A1 - Cage de laminoir à cylindres d'appui et de travail - Google Patents

Cage de laminoir à cylindres d'appui et de travail Download PDF

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Publication number
EP0808673A1
EP0808673A1 EP97250147A EP97250147A EP0808673A1 EP 0808673 A1 EP0808673 A1 EP 0808673A1 EP 97250147 A EP97250147 A EP 97250147A EP 97250147 A EP97250147 A EP 97250147A EP 0808673 A1 EP0808673 A1 EP 0808673A1
Authority
EP
European Patent Office
Prior art keywords
stand
roll
beams
work rolls
displacement
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
Application number
EP97250147A
Other languages
German (de)
English (en)
Other versions
EP0808673B1 (fr
Inventor
Dieter Dipl.-Ing. Figge
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
Mannesmann 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 Mannesmann AG filed Critical Mannesmann AG
Publication of EP0808673A1 publication Critical patent/EP0808673A1/fr
Application granted granted Critical
Publication of EP0808673B1 publication Critical patent/EP0808673B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • B21B13/023—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally the axis of the rolls being other than perpendicular to the direction of movement of the product, e.g. cross-rolling
    • 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
    • B21B31/28—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by toggle-lever mechanisms

Definitions

  • the invention relates to a roll stand with support and work rolls for rolling sheets and strips, in which at least the upper and lower work rolls, which are mounted in chocks within the stand windows formed between the stator columns of the roll stands, by horizontal displacement in opposite directions by means of displacement drives which are effectively assigned to the chocks common vertical plane can be shifted into positions in which the vertical planes passing through the roll axis of the upper work roll and the lower work roll intersect.
  • Patent application 0 525 552 A1 proposes common sliding blocks for the chocks of the work and back-up rolls, which are arranged between the chocks and the roll stand and have wedge surfaces on their sides facing away from the chocks, which correspond with vertically adjustable displacement drives with such wedge surfaces.
  • the wedge surfaces sliding on one another cause a horizontal displacement of the sliding blocks, as a result of which they adjust the chocks lying on the side.
  • the known systems are very complex, in particular when, in addition to the displacement of the rolls, devices for bending them are provided which usually require special work roll bearings.
  • the roller sets must be provided with axial locks in order to be able to absorb the axial forces caused by the system-related inclination of the rollers. Retrofitting existing roll stands with systems for crossing and bending the work rolls is not possible or only possible at an unacceptably high cost.
  • the object of the present invention is to provide a device for crossing and bending the work rolls on a roll stand with support and work rolls for rolling sheets and strips to be provided, which can be easily retrofitted to existing rolling mills while avoiding complex mechanics.
  • each stator column on the opposite, parallel to the rolling direction inner and outer sides of each stator column each have a sliding and pivot bearing for one of two mutually parallel, coupled, im essential horizontal bars is arranged, which on both sides protrude beyond the stand columns into the stand window on the one hand and protrude from the roller stand on the side facing away from the stand window, the ends of two pairs of bars protruding into the stand window of one stand side, the respective work roll chock of the upper and lower work roll Support synchronously adjustable on both sides in the vertical and horizontal directions and the other projecting ends of these pairs of beams correspond to the displacement and bending cylinders, which, between the roll stand and de n arranged beams, the latter move in opposite directions in the shifting position and / or swivel about the swivel axes of the swivel bearings.
  • the invention proposes a very simple system with sliding and pivoting beams guided on the outside of the stand, which acts on the chocks in the sense of a horizontal and vertical movement.
  • the bending forces are generated on the outside of the scaffolding and are guided into the stand via the pivot bearings of the beams.
  • the sliding bearings for the beams are provided at the same time, so that overall a mechanically very simple system results, the particular advantage of which is that the entire device can also be retrofitted to existing roll stands.
  • Each displacement and swivel bearing preferably consists of axially parallel and axially parallel to the upright columns with respect to a upright column, about their horizontal central axes guide bushes, each of which is transversely centrally penetrated in the transverse direction by a recess leading the beam on both sides in the longitudinal direction and with its cylindrical outer lateral surfaces on both sides the longitudinal axes of the beams are slidably guided in bearing shells, which in turn are provided in bearing blocks arranged on the support columns.
  • the guide bushes that represent the swivel bearing are of very strong dimensions and at the same time also accommodate the bearings for the reciprocating movement of the beams in the horizontal direction.
  • the bearing blocks provided to support the guide bushes on the upright columns can be retrofitted there.
  • bending cylinders are provided according to a further feature of the invention, which are slidably arranged on a bracket on the stator column on the one hand and on the other hand on the beams, the bending forces being guided into the stator columns via the guide bushes and the bearing shells.
  • These bending cylinders act in the vertical direction on the end of each beam protruding outward from the area of the stator columns, regardless of its displacement position.
  • the bar forms a two-armed lever.
  • the ends of the bending cylinders facing the beams are slidably supported on the beams.
  • a pair of beams is preferably coupled to a stand column via crossbeams which extend transversely to the beams on both sides of the stand columns. This creates a stable, closed system that is also able to transmit large forces.
  • a favorable embodiment of the invention is characterized in that the guide bushes on each side of each swivel and displacement bearing are arranged on a common axis, which passes through the column of columns and an elongated hole penetrating the beam in the direction of displacement of the beam and which is designed as a pressure-actuated pull rod, the beams of the pair of beams clamped against each other and jammed.
  • the axis connecting the two guide bushes is inserted through a hole in each stand column of the roll stand, which also serves to clamp the beams in the guide bushes.
  • a pressure medium cylinder is attached to the end of the axis designed as a pull rod, with which the clamping force can be applied in the axial direction against an abutment provided at the other end of the pull rod.
  • the clamping can be supported by spring packs.
  • the stand columns of the roll stand are broken in the rolling direction for the displacement of the work rolls in the horizontal direction and guides for horizontally projecting slidable beams in the stand window form, of which two coaxially opposite beams are assigned to a chock which can be moved horizontally in the stand window by synchronized displacement of these beams, and that for bending the work rolls in the vertical direction, each beam receives at least one vertically acting bending cylinder at its end projecting into the stand window , which grips behind a projection on the chock.
  • the bars for moving the chocks are inserted through bores running in the rolling direction in the upright columns and guided therein.
  • the bending cylinders are arranged in the ends of the beams projecting into the stator window and engage behind projections of the chock to make it vertical Direction to adjust.
  • the proposed solution is characterized by the simplicity of its construction. It can be retrofitted into old roll stands. A prerequisite for this is an appropriate stand strength, which is usually given, however, especially with older rolling stands.
  • the beams guided in the upright columns are displaced by horizontally acting displacement cylinders which are connected to the ends of the beams facing away from the upright window and are indirectly supported on the outside of the upright columns.
  • the "beam solution” creates a very inexpensive and simple mechanical solution that can be easily used to retrofit old rolling stands.
  • the device works reliably and precisely and enables the work rolls to be bent and moved in the necessary setting range.
  • the equipment is part of the roll stand and is only required once for all work rolls. This reduces the invested capital in particular compared to solutions in which the devices for bending and crossing the work rolls are directly assigned to the work rolls or their chocks.
  • the roller stand of a four-high mill stand is designated by 1
  • the upper support roller is designated by 2a and the lower support roller is designated by 2b
  • the upper work roller is designated by 3a and the lower work roller by 3b.
  • the rolling stock is indicated at 4.
  • the roll stand 1 has four stand columns, of which two stand columns which can be seen in the drawing are denoted by 5 and 6.
  • the stand columns on one side of the roll stand 1 delimit between them the stand window 11, in which the chocks 7 of the support rolls and 8 of the work rolls are guided.
  • each column 5 On the opposite, parallel to the rolling direction inner and outer sides of each column 5, 6 are horizontal (perpendicular to the plane of the drawing) arranged bars, which are denoted by 9 in Figure 1 and are described below with reference to Figure 2.
  • the drawing is a simplified representation of the construction, with insignificant parts being omitted.
  • identical parts are initially identified identically.
  • the bars 9 of the invention can be seen, which, as the arrow 10 indicates, are guided essentially horizontally on the support columns 5 and can be pivoted.
  • the ends of the beams 9 protrude into the stand window 11 formed between the stand columns 5 and hold the chock 8 of the work roll 3a or 3b on both sides with their end faces.
  • the ends 9a of the beams engage behind 9b projections of the chocks 8, which are designated 8a.
  • Each chock 8 of the support rollers 2a and 2b can be adjusted in the vertical direction on these projections 8a by pivoting the bars 9.
  • the bars 9 are guided in guide bushes 13 which can be pivoted about the horizontal pivot axis 12, in recesses 14, the guide bushes 13 having openings in the longitudinal direction of the bars which form sliding guides.
  • the guide bushes in turn are slidably guided on their cylindrical outer jacket surfaces 15 in corresponding bearing shells which are arranged in bearing blocks 16 attached to the stator columns 5.
  • elongated holes 17 are provided in the bars 9, which are adapted in their longitudinal extent to the displacement path of the bars 9.
  • brackets 18 are attached to the upright columns 5, to which pivotable bending cylinders 19, which act in the vertical direction, are articulated.
  • the bending cylinders 19 are supported by slide guides 20 against the ends of the beams 9 which protrude on the side of the support columns 5 facing away from the stand window 11 and thus enable pivoting about the pivot axes 12.
  • the displacement cylinders 21 are provided for displacing the beams 9 in the longitudinal direction. which are supported on the one hand at 22 on the support columns 5 and on the other hand at 23 on cross members 24, which in turn are provided at the free ends of the beams 9, each connecting two beams 9 forming a pair of beams.
  • FIG. 3 represents a longitudinal section through the bending cylinders 19.
  • the same parts are labeled the same.
  • FIG 4 it can be seen how the bars 9 are clamped after the displacement about their longitudinal axis and thus after the displacement of the chocks 3a, 3b.
  • the stand column 5 of each roll stand 1 is pierced at 24, a tie rod 25 being guided through the hole and penetrating both the beams 9 in the region of the elongated holes 17 and the guide bushes 13.
  • the pull rod 25 is provided with a head 26 forming an abutment, while at the other end a pressure medium cylinder 27 is attached, as well as plate spring assemblies 28.
  • the head 26 of the pull rod 25 is stretched over the plate springs.
  • the beams 9 are clamped and clamped in the guide bushes 13. In this way, the rollers can be fixed during the rolling process by fixing the chocks 8 between the ends 9a of the beams 9.
  • the pressure medium cylinder 27 serves to release the clamping.
  • FIG. 5 A variant of the invention is shown in FIG. 5.
  • the stator columns of a four-high mill stand are designated 5, which are perforated in the rolling direction with bores as guides.
  • the guides are labeled 30.
  • Slidable beams 31 are guided through the guides 30 and fix the chocks 8 of the work rolls 3a, 3b on both sides in the desired displacement position at their ends 31a projecting into the stand window 11.
  • the Beams 31 are provided on the end outside of the stator columns 5, displacement cylinders 32, which, coupled to the opposite beams 31, cause the work rolls 3a, 3b to be displaced via their chocks 8.
  • the horizontal projections 8a on the chocks 8 are engaged by vertically acting bending cylinders 33, which are arranged in the ends 31a of the beams 31 projecting into the stator window 11.
  • bending cylinders 33 By applying pressure medium to these bending cylinders 33, preferably through the bars 31, the bending of the work rolls 3a, 3b can be accomplished in any displacement position of the bars 31 in the bores 30 of the support columns 5.
  • the displacement cylinders 32 for the beams 31 are supported on the respective column 5 by means of a cross member 34.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP97250147A 1996-05-20 1997-04-29 Cage de laminoir à cylindres d'appui et de travail Expired - Lifetime EP0808673B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19622305A DE19622305C1 (de) 1996-05-20 1996-05-20 Walzgerüst mit Stütz- und Arbeitswalzen
DE19622305 1996-05-20

Publications (2)

Publication Number Publication Date
EP0808673A1 true EP0808673A1 (fr) 1997-11-26
EP0808673B1 EP0808673B1 (fr) 2001-05-30

Family

ID=7796055

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97250147A Expired - Lifetime EP0808673B1 (fr) 1996-05-20 1997-04-29 Cage de laminoir à cylindres d'appui et de travail

Country Status (3)

Country Link
US (1) US5809821A (fr)
EP (1) EP0808673B1 (fr)
DE (2) DE19622305C1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141180A1 (de) * 2001-08-22 2003-03-06 Sms Demag Ag Walzgerüst zum Walzen von unterschiedlichem Walzgut, das unterschiedliche Walzkräfte erfordert
DE102008009902A1 (de) * 2008-02-19 2009-08-27 Sms Demag Ag Walzvorrichtung, insbesondere Schubwalzengerüst
JP7176154B1 (ja) * 2022-08-10 2022-11-21 株式会社日立パワーソリューションズ ロールプレス装置

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE586241C (de) * 1932-07-03 1933-10-19 Fried Krupp Grusonwerk Akt Ges Tragvorrichtung fuer die in der Hoehe verstellbaren Walzen von Walzwerken
DE977108C (de) * 1953-11-01 1965-02-11 Demag Ag Walzgeruest, insbesondere fuer breite Bleche
DE1929942A1 (de) * 1968-07-19 1970-01-22 Moeller & Neumann Gmbh Walzwerk fuer Bleche,Baender oder Folien mit Balligkeitssteuerung
EP0233597A2 (fr) * 1986-02-21 1987-08-26 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir aux empoises ajustables verticalement dans le bâti
EP0525552A1 (fr) * 1991-07-30 1993-02-03 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif de croisement de cylindres pour un laminoir à cylindres obliques
JPH05237522A (ja) * 1992-02-27 1993-09-17 Mitsubishi Heavy Ind Ltd クロスロール圧延機
JPH05269510A (ja) * 1992-03-25 1993-10-19 Mitsubishi Heavy Ind Ltd クロスロール圧延機のワークロールチョック位置安定装置
JPH05317918A (ja) * 1992-05-13 1993-12-03 Mitsubishi Heavy Ind Ltd クロスロール圧延機
EP0744227A1 (fr) * 1995-05-25 1996-11-27 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif de croisement de cylindres pour un laminoir

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0773731B2 (ja) * 1985-08-09 1995-08-09 三菱重工業株式会社 ロールクロスミル
JPH0749124B2 (ja) * 1986-03-20 1995-05-31 株式会社日立製作所 ロールシフト式圧延機
JPS6483312A (en) * 1987-09-25 1989-03-29 Hitachi Ltd Roll mover
EP0553480B1 (fr) * 1991-12-27 1996-03-13 Hitachi, Ltd. Laminoir, procédé de laminage et système de laminoirs

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE586241C (de) * 1932-07-03 1933-10-19 Fried Krupp Grusonwerk Akt Ges Tragvorrichtung fuer die in der Hoehe verstellbaren Walzen von Walzwerken
DE977108C (de) * 1953-11-01 1965-02-11 Demag Ag Walzgeruest, insbesondere fuer breite Bleche
DE1929942A1 (de) * 1968-07-19 1970-01-22 Moeller & Neumann Gmbh Walzwerk fuer Bleche,Baender oder Folien mit Balligkeitssteuerung
EP0233597A2 (fr) * 1986-02-21 1987-08-26 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir aux empoises ajustables verticalement dans le bâti
EP0525552A1 (fr) * 1991-07-30 1993-02-03 Mitsubishi Jukogyo Kabushiki Kaisha Dispositif de croisement de cylindres pour un laminoir à cylindres obliques
JPH05237522A (ja) * 1992-02-27 1993-09-17 Mitsubishi Heavy Ind Ltd クロスロール圧延機
JPH05269510A (ja) * 1992-03-25 1993-10-19 Mitsubishi Heavy Ind Ltd クロスロール圧延機のワークロールチョック位置安定装置
JPH05317918A (ja) * 1992-05-13 1993-12-03 Mitsubishi Heavy Ind Ltd クロスロール圧延機
EP0744227A1 (fr) * 1995-05-25 1996-11-27 DANIELI & C. OFFICINE MECCANICHE S.p.A. Dispositif de croisement de cylindres pour un laminoir

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 017, no. 690 (M - 1530) 16 December 1993 (1993-12-16) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 034 (M - 1544) 19 January 1994 (1994-01-19) *
PATENT ABSTRACTS OF JAPAN vol. 018, no. 127 (M - 1569) 2 March 1994 (1994-03-02) *

Also Published As

Publication number Publication date
DE59703643D1 (de) 2001-07-05
DE19622305C1 (de) 1997-08-21
US5809821A (en) 1998-09-22
EP0808673B1 (fr) 2001-05-30

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