EP0231875A2 - Dispositif de déplacement axial des cylindres d'une cage de laminoir - Google Patents

Dispositif de déplacement axial des cylindres d'une cage de laminoir Download PDF

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Publication number
EP0231875A2
EP0231875A2 EP87101183A EP87101183A EP0231875A2 EP 0231875 A2 EP0231875 A2 EP 0231875A2 EP 87101183 A EP87101183 A EP 87101183A EP 87101183 A EP87101183 A EP 87101183A EP 0231875 A2 EP0231875 A2 EP 0231875A2
Authority
EP
European Patent Office
Prior art keywords
thrust pieces
work rolls
drive
pinions
chocks
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Withdrawn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
EP87101183A
Other languages
German (de)
English (en)
Other versions
EP0231875A3 (fr
Inventor
Heinrich Bohnenkamp
Friedel Mogendorf
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 Schloemann Siemag AG
Schloemann 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 Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Publication of EP0231875A2 publication Critical patent/EP0231875A2/fr
Publication of EP0231875A3 publication Critical patent/EP0231875A3/fr
Withdrawn legal-status Critical Current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
    • B21B13/142—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

Definitions

  • the invention relates to a device for axially displacing the work rolls of a roll stand for rolling flat material, in particular work rolls with a corresponding bottle-shaped contour of the rolled bales, with horizontally guided thrust pieces arranged in stator-fixed blocks at least on the operating side, in pairs via vertical adjustment movements of the work rolls Allow releasable guides to engage positively on the outward projections of each chock, and with stator-mounted power drives on the operating side for axial displacement of the thrust pieces together with chocks and work rolls, the drive-side chocks of which are arranged along with the work rolls.
  • a displacement device is described in DE-Al 33 3l 055, the thrust pieces simultaneously receiving the bending device for balancing and bending the work rolls.
  • the power drives for the axial displacement of the thrust pieces together with the rollers can be arranged next to the thrust pieces, but the thrust pieces themselves can also form part of a power drive, for example a cylinder movable relative to a fixed piston rod.
  • the invention has for its object to reduce the mechanical and control effort for the opposite axial displacement of work rolls.
  • control and monitoring units are also required in order to axially shift each work roll in accordance with the width of the flat material with a roll bale edge symmetrically to the vertical center plane of the roll stand lying parallel to the rolling direction on both work rolls - in opposite directions.
  • control and monitoring devices include, for example, position sensors, servo valves and limit switches.
  • the solution to the problem is according to the invention is that pairs of superimposed thrust pieces of different work rolls are provided with opposing racks and are coupled in opposite directions to one another via stator-mounted, with each pair of racks in engagement. This ensures that power drives and control and monitoring units are only required for one of the two work rolls, since the other work roll follows the displacement movements of the actively displaceable work roll in opposite directions and to the same extent. Neither thrust pieces nor synchronization pinions need to be provided on the drive side, as long as - as stated - accompanying bending devices are not to be considered.
  • the pinions are expediently arranged in a floating manner on each of the stator-mounted pinion shafts with respect to the lateral expansion of the rollers, on which reversible power drives act, for. B. power cylinders or hydraulic motors.
  • pairs of thrust pieces for receiving bending devices for balancing and bending the work rolls are assigned to each of the chocks of both work rolls, according to the further invention also the drive-side thrust pieces, which are not positively connected to chocks, are coupled with one another in opposite directions via racks and pinions, the one of the work rolls associated thrust pieces are operatively coupled via linkage parts to the operator-side thrust pieces which can be displaced in the same direction in order to drive the thrust pieces on the drive side in the direction of displacement.
  • the gearing connection from one side of the stand to the other takes account of the fact that, on the drive side of the rolling stand, special power drives and form-fitting connections between thrust pieces and chocks are inappropriate for design reasons.
  • the four-high mill stand has two work rolls 1, 2, two support rolls 3, 4 as well as stand spars 5, 6 on the operator side and stand spars 7, 8 on the drive side (FIGS. 4 and 5).
  • the work rolls 1, 2 are mounted on the operator side in chocks 9, 10 and on the drive side in chocks 11 such that the chocks follow the axial displacement movements of the work rolls.
  • 5 shows a drive spindle l2 with clutch l3 for driving the upper work roll l.
  • blocks which are fixed to the stand are arranged within the stand window at the level of the work rolls for the horizontal guidance of thrust pieces.
  • FIGS. 1 and 2 the right half of the drawing, blocks l4 which are fixed on the operator side are provided, in which an upper pair of thrust pieces l5 are guided horizontally.
  • the design of the thrust pieces l5 and their dovetail guide l6 there is no difference compared to the embodiment of the left half of the drawing. The same applies to the lower pair of thrust pieces l7.
  • the stationary blocks l4 of the right half of the drawing are formed into cylinders l4a, in which pistons l8 which can be acted upon are guided, the piston rods l9 of which are connected to lateral arms l5a of the thrust pieces l5.
  • the thrust pieces l5 engage via vertical, releasable guides which permit the adjustment movements of the work rolls to form-fitting projections 9a of the operator-side chock 9 of the upper work roll 1, with controllable bolts 20 as shown in FIG. 1 of DE-Al 33 3l 055 as part of the vertical guidance are provided in order to be able to clear the projections 9a for axial roll removal towards the operating side.
  • the same also applies to the lower thrust pieces l7 for axially displacing the lower work roll 2 together with the chock l0 on the operator side.
  • the double-acting power drives consisting of the cylinders l4a and piston l8 and piston rod l9 are only assigned to the upper work roll l or its thrust pieces l5.
  • the lower thrust pieces l7 are coupled for the opposite axial displacement of the lower work roll 2 via pinions 2l with the thrust piece l5 lying above them.
  • the thrust pieces l5, l7 of different work rolls lying one above the other in pairs are provided with opposing toothed racks 22, into which the pinions 2l arranged in a fixed manner in bearings 23 engage.
  • the bearing 23 on the right half of the drawing in FIG. 2 cannot be seen.
  • the exemplary embodiment shown on the left half of the drawing in FIGS. 1 and 2 differs from the previously described exemplary embodiment in that the synchronization pinions 2l are each arranged in a floating manner on a pinion shaft 24 which is mounted on a stand and on which reversible power drives 25, which only act in FIG. l are shown.
  • These power drives consist of power cylinders 25 which are arranged on the stator bars 5 and 6 in an oscillating manner, the piston rods 26 of which are articulated to lever arms 27 fastened to the pinion shafts 24.
  • this type of power drive 25 allows a reversible rotary adjustment of the pinion 2l only to an extent of less than 180 °.
  • the choice of the diameter of the pinion 2l can influence the opposing adjustment paths of the thrust pieces l5 and l7 and thus the work rolls l and 2, these possibilities are limited, so that the extent of the axial adjustment of the work rolls is primarily for is designed such work rolls, which have a corresponding bottle-shaped contour, or for substantially cylindrical work rolls, if the differences between the occurring rolling stock widths are not too great from the rolling program.
  • FIG. 3 shows schematically the case in which the operator-side thrust pieces l5 and l7 are to be provided as thrust pieces 30 and 3l which can be displaced in the same direction, also on the drive side of the roll stand, since all thrust pieces are provided with diametrically acting pressure plungers 32 from bending devices which are attached to them attack, not shown, overlapping claws of the chocks.
  • the operator-side pinions 2l with toothed racks 22 such synchronization sprockets 33 with toothed racks 22 are also provided on the drive side, which are expediently connected to one another via a synchronous shaft 34.
  • the lower thrust pieces 3l which are assigned to the lower work roll 2 on the drive side, Coupled via linkage parts 35 with the operator-side, shiftable push pieces l7.
  • linkage parts 35 could also be arranged between the upper pairs of thrust pieces 15 and 30.
  • an adjustment movement is transmitted in opposite directions to the other pair of thrust pieces 30 on the drive side and thus also to the other work roll 1 via chocks, not shown.
  • FIG. 4 Two other possibilities for a gear coupling between push pieces which can be displaced in the same direction are shown in FIG. 4. Similar to that already described in connection with FIGS. 1 and 2, all four synchronization pinions 2l and 33 are overhung on pinion shafts 24, which are mounted in stator-mounted bearings 23.
  • the pinion shafts 24 on the operating side are each coupled to the pinion shafts 24 on the drive side for the same direction of rotation via a parallelogram linkage 36, 37.
  • a geared connection exclusively via rotary shafts is shown in the lower half of FIG.
  • the pinion shafts 24 are coupled to one another via bevel gear pairs 38 and a synchronous shaft 39, which also extends outside the stator columns 6 and 8, as does the parallelogram linkage 36, 37 in the upper half of the drawing runs outside of the pillars 5 and 7.
  • the pinions 2l can be driven on the operator side via power drives, for example via schematically illustrated hydraulic motors 40 (FIG. 4).
  • the drive-side pairs of thrust pieces 30, 3l are not provided with positive connections to the associated chocks.
  • the opposite displacement of the drive-side thrust pieces 30, 3l serves only for the purpose that the bending devices with the pressure plungers 32 follow the shifting movements of the work rolls, which are geared from the operating side, so that the bending devices are also "moving" on the drive side.
  • the operating side on the left does not differ significantly from the exemplary embodiment according to FIG. 2, right half of the drawing, as far as the form-fitting vertical guidance between the operating-side chock 9 of the upper work roll 1 and the push pieces 46 and 47 is concerned.
  • the difference is that the thrust pieces 46 (and also the thrust pieces 47 of the lower work roll 2) do not directly form the vertical guide surfaces for the chocks, but rather the detachable covers 42a of blocks 42 fixed to the stand, in which the thrust pieces 32 provided with bending devices 32 are guided in a piston-like manner.
  • the power drives for actively moving either the upper operator-side chock 9 or the lower chock 10 (FIG.
  • the drive-side thrust pieces 44, 45 are provided with inwardly directed stops 44a, 45a, which lie in the adjustment path of stop lugs 11a of the chocks (for both rollers).
  • the upper pair of thrust pieces 44 are taken along.
  • the lower pair of thrust pieces 45 is adjusted in opposite directions and takes the lower chock 11 with the lower work roll 2 via the stops 45a.
  • the operator-side pinions 2l are not required if - with only pressure-resistant stop conditions on the drive side - power drives are provided for each work roller on the operator side that are only single-acting and are acted on in pairs alternately.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
EP87101183A 1986-02-06 1987-01-28 Dispositif de déplacement axial des cylindres d'une cage de laminoir Withdrawn EP0231875A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863603693 DE3603693A1 (de) 1986-02-06 1986-02-06 Vorrichtung zum axialen verschieben der arbeitswalzen eines walzgeruestes zum walzen von flachmaterial
DE3603693 1986-02-06

Publications (2)

Publication Number Publication Date
EP0231875A2 true EP0231875A2 (fr) 1987-08-12
EP0231875A3 EP0231875A3 (fr) 1989-04-19

Family

ID=6293542

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101183A Withdrawn EP0231875A3 (fr) 1986-02-06 1987-01-28 Dispositif de déplacement axial des cylindres d'une cage de laminoir

Country Status (4)

Country Link
US (1) US4848128A (fr)
EP (1) EP0231875A3 (fr)
JP (1) JPS62187511A (fr)
DE (1) DE3603693A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326805A2 (fr) * 1988-01-30 1989-08-09 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir avec un dispositif de déplacement

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3638331C2 (de) * 1986-11-10 1995-07-13 Schloemann Siemag Ag Walzgerüst zum Walzen von Flachmaterial mit einem Paar von axial verschiebbaren Arbeitswalzen
US5524470A (en) * 1994-03-24 1996-06-11 Italimplanti Of America, Inc. Plug mill bottom roll adjustment
US5752404A (en) * 1996-12-17 1998-05-19 Tippins Incorporated Roll shifting system for rolling mills
DE10036564C2 (de) * 1999-08-03 2001-06-21 Achenbach Buschhuetten Gmbh Mehrwalzengerüst
DE102007042896A1 (de) 2007-03-15 2008-09-18 Sms Demag Ag Walzvorrichtung
JP5894849B2 (ja) * 2012-04-25 2016-03-30 Ｐｒｉｍｅｔａｌｓ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｊａｐａｎ株式会社 作業ロールシフト機能を具備した多段圧延機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279415A (en) * 1940-04-25 1942-04-14 Simons Aaron Method and apparatus for drawing strip
DE955131C (de) * 1943-02-25 1956-12-27 Tadeusz Sendzimer Walzwerksanordnung
DE2260256A1 (de) * 1971-12-10 1973-06-20 Hitachi Ltd Walzgeruest und verfahren zum walzen von walzgut abnehmender breite
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
DE3331055A1 (de) * 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2047883A (en) * 1935-09-03 1936-07-14 Charles W Phillips Rolling mill
SU229197A1 (en) * 1965-03-12 1981-08-07 Vni Pk I Metallicheskogo Mash Machine for straightening tubes
JPS5573409A (en) * 1978-11-25 1980-06-03 Mitsubishi Electric Corp Tuning control unit for roll position of rolling mill
JPS58163516A (ja) * 1982-03-25 1983-09-28 Ishikawajima Harima Heavy Ind Co Ltd 圧延機制御装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2279415A (en) * 1940-04-25 1942-04-14 Simons Aaron Method and apparatus for drawing strip
DE955131C (de) * 1943-02-25 1956-12-27 Tadeusz Sendzimer Walzwerksanordnung
DE2260256A1 (de) * 1971-12-10 1973-06-20 Hitachi Ltd Walzgeruest und verfahren zum walzen von walzgut abnehmender breite
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
DE3331055A1 (de) * 1983-08-29 1985-03-14 SMS Schloemann-Siemag AG, 4000 Düsseldorf Walzgeruest mit axial verschieblichen arbeitswalzen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0326805A2 (fr) * 1988-01-30 1989-08-09 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir avec un dispositif de déplacement
EP0326805A3 (en) * 1988-01-30 1990-05-02 Sms Schloemann-Siemag Aktiengesellschaft Roll stand with a shifting device

Also Published As

Publication number Publication date
US4848128A (en) 1989-07-18
JPS62187511A (ja) 1987-08-15
DE3603693A1 (de) 1987-08-13
EP0231875A3 (fr) 1989-04-19

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Inventor name: BOHNENKAMP, HEINRICH