EP0154896A2 - Laminoir à six cylindres - Google Patents

Laminoir à six cylindres Download PDF

Info

Publication number
EP0154896A2
EP0154896A2 EP85102211A EP85102211A EP0154896A2 EP 0154896 A2 EP0154896 A2 EP 0154896A2 EP 85102211 A EP85102211 A EP 85102211A EP 85102211 A EP85102211 A EP 85102211A EP 0154896 A2 EP0154896 A2 EP 0154896A2
Authority
EP
European Patent Office
Prior art keywords
rolls
roll
roll stand
horizontal
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.)
Granted
Application number
EP85102211A
Other languages
German (de)
English (en)
Other versions
EP0154896A3 (en
EP0154896B1 (fr
Inventor
Hans Römmen
Erich Stoy
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
Priority to AT85102211T priority Critical patent/ATE53778T1/de
Publication of EP0154896A2 publication Critical patent/EP0154896A2/fr
Publication of EP0154896A3 publication Critical patent/EP0154896A3/de
Application granted granted Critical
Publication of EP0154896B1 publication Critical patent/EP0154896B1/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
    • 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
    • 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
    • B21B2013/028—Sixto, six-high stands
    • 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
    • B21B2031/206—Horizontal offset of work rolls
    • 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

Definitions

  • the invention relates to a six-roll stand with support, intermediate and work rolls arranged essentially within a common vertical plane and in stand blocks and / or chocks for roll bending and / or balancing hydraulic cylinders, and with arranged in the stator windows, a horizontal displacement of chocks of rolls effecting horizontal adjustment devices.
  • Such support can not only be achieved by separate support rollers arranged next to the work rolls, such support can also be achieved relatively simply by moving the work rolls out of the support roll plane in the rolling direction.
  • Such a horizontal roller displacement is described, for example, in DE-OS 33 35 857.5, and adjustment devices provided for this purpose can be found in DE-OS 33 35 858.3.
  • the invention is therefore based on the object of creating a six-roll stand of the type described with a backup roll drive, in which the stress on the intermediate rolls remains relatively low.
  • the horizontal adjustment devices can also be designed as hydraulic cylinders which are operated in synchronism via control devices. Under certain conditions, however, it can prove advantageous to specify determinable deviations from the synchronism for the synchronizing devices.
  • a relatively simple construction results if the horizontal adjustment devices each support wear plates or guide pieces for the blocks having the chocks of the intermediate rolls.
  • at least blocks provided one above the other can be connected to each other to form a frame by means of recesses in the beams reaching through or around beams, so that adjustment devices operated in synchronism also result in a vertical alignment of the wear plates.
  • the work rolls can preferably be arranged slightly offset with respect to the vertical having the plane of the support rolls, counter to the rolling direction. This results in an increase in the offset of the intermediate rollers compared to the plane having the backup rollers and thus the desired further compensation of the forces acting on the intermediate rollers when setting the desired offset between work and intermediate rollers.
  • the cylinder blocks guiding the chocks of the work rolls expediently have unequal strengths for this purpose.
  • both the intermediate and the work rolls could be displaceably displaceable by adjusting devices relative to the plane having the support rolls, as shown, the intermediate rolls can be displaced by adjusting devices while the work rolls are arranged offset by a predetermined mean dimension, and finally the intermediate rollers could also be arranged offset by a predetermined fixed dimension with respect to the backup rollers, while the work rollers can be adjusted relative to the backup rollers by adjusting devices.
  • FIG. 1 shows a section through a stand of a six-roll stand, in which stand legs 1 and 2, shown broken off, include parts of a stand window.
  • Recesses 3 of the spars 1 and 2 accommodate horizontal adjustment devices 4 to 7 which, according to DE-OS 33 35 858, can have screw spindles driven by worm drives.
  • Blocks 8 are supported on the adjusting spindles of the horizontal adjusting devices, which have hydraulic cylinders having stamps 9 for balancing the chocks 10 of the support roller 1.1.
  • Within the blocks 8 are vertically displaceable guide pieces 12, which support horizontally guided chocks 13 for intermediate rollers 14.
  • the horizontal variable support of the intermediate rolls 14 by means of the horizontal adjusting devices 4 to 7 makes it possible to set these intermediate rolls out of the common center plane of the stand, which has the axes of the support rolls and the work rolls. According to Fig. 1, the intermediate rollers are shown pushed to the right out of this central plane.
  • blocks 8 are shown on the left-hand side, which can be adjusted individually and independently of one another by horizontal adjustment devices 4 and 5, while blocks 25 are shown on the right-hand side, which are connected to a frame by longitudinal bars 26, the longitudinal bars 26 are guided on both sides of the carrier 24 provided with recesses.
  • the adjustment devices 6 and 7 are operated in synchronism, strict compliance with the vertical is achieved by the blocks 25.
  • the hydraulic cylinders projecting up and down from the blocks 8 and 25 with their stamps 9 serve to balance the support rollers.
  • the guide pieces 12 are equipped with hydraulic cylinders 27 arranged one behind the other, which are double-acting, and the free piston rod ends of which are fixed in the opposite guide piece 19, so that these hydraulic cylinders are able to transmit both positive and negative bending forces, axial displacements being caused by different Actuation of the cylinders can be compensated.
  • two successive hydraulic cylinders 28 are provided in the blocks 8, which cannot be recognized in the lower blocks by selecting a different cutting plane.
  • the pistons of the hydraulic cylinders 28 are also designed to be acted upon on both sides, and the free ends of the pistons benstangen are fixed in the guide pieces 12, so that both positive and negative bending forces can be transmitted here.
  • the other, smaller hydraulic cylinders shown serve to move to the starting positions for the roll change.
  • Fig. 2 six rolls of a six-roll stand are shown one above the other, the work rolls being offset by an amount e in the rolling direction.
  • the circumferential forces F U that result from the backup roller drive and the forces F HZ and F HA that stress the chocks of the intermediate rolls and the work rolls are entered as well as the forces ⁇ F T formed as a difference between the tensile forces in front of and behind the stand in the rolling stock, each in half is taken over by the two work rolls. If one draws the force plan of the work roll according to FIG. 5 and the force plan of the intermediate roll according to FIG.
  • each work roll is affected by half the amount of the respective strip tension difference ⁇ F T , which can occur both in the positive and in the negative direction.
  • ⁇ F T strip tension difference
  • both the circumferential force F U which claims the work roll and the reaction force F K are inclined against the rolling force F W , so that the arrowhead of the reaction force F K approaches the starting point of the rolling force and the resulting horizontal force F HA is reduced compared to that which would result if the circumferential force F u applied at right angles and accordingly also the reaction force F K.
  • the axes of the work rolls are held in the same plane in which the axes of the back-up rolls stand, and only the intermediate rolls are offset against the rolling direction from this vertical plane by the dimension -e against the rolling direction.
  • the goal is achieved of reducing the circumferential force exerted by the drive via the support rollers by the resulting horizontal rolling force component to such an extent that only a controllable residual component directed towards the intermediate roller remains and the work roller is relieved to such an extent that it can be relieved even at a low level Diameter proves to be stable and neither experiences significant deflection nor tends to vibrate.
  • the respective degree of compensation can be set as desired using the horizontal adjusting devices 4 to 7 shown in FIG. 1.
  • the reaction force F KZ between the intermediate roll and the back-up roll is now tilted and the horizontal load on the intermediate roll is further reduced due to this effect of the additional horizontal displacement.
  • a complete compensation of the horizontal forces is not possible without overcompensation of the work roll, because the sum of the radii of the support and the intermediate rolls is greater than the work - and the intermediate rolls.
  • the force plan of the work roll according to FIG. 7 corresponds to that of FIG. 5.
  • the horizontal force F HA which demands the work rolls can be selected between 0 and 0.5 F U , whereas with conventional radii the horizontal force of intermediate rolls F HZ between 0, 5 FU and 1 F can be u.
  • This partial compensation of the intermediate roll according to FIG. 4 can be improved without significant effort, for example, in that the intermediate and the work rolls are additionally offset by the same amount against the rolling direction as shown in FIG. 3, so that the offset of the work roll is opposite the intermediate roll is maintained with e, while the offset of the intermediate roll with respect to the backup roll increases to the value g.
  • the degree of compensation of the forces transmitted from the intermediate roll to the work roll is not changed, but rather the one for the forces transmitted from the backup roll to the intermediate roll is increased.
  • this effect can be easily used by, for example, displacing the work rolls by unevenly strong supports 15 and 24 by a basic amount against the rolling direction from the vertical of the support roll axes.
  • an additional displacement of the intermediate rolls and thus a more extensive compensation of the peripheral forces is achieved, as the associated force map in FIG. 10 shows.
  • the horizontal force F HZ can be adjusted between 0 and 0.5 F U depending on the degree of compensation, so that both the bending stresses and the bearing loads on the intermediate rolls are further reduced considerably.
  • a minimum or also an average value can be assumed for the additional fixed displacement, and the adjustment of the compensation of the forces acting on the more sensitive work roll can be effected by additional adjustment using the horizontal adjustment devices.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)
  • Liquid Developers In Electrophotography (AREA)
  • Eye Examination Apparatus (AREA)
EP85102211A 1984-03-13 1985-02-28 Laminoir à six cylindres Expired - Lifetime EP0154896B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85102211T ATE53778T1 (de) 1984-03-13 1985-02-28 Sechswalzengeruest.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE3409162 1984-03-13
DE3409162 1984-03-13
DE19853503756 DE3503756A1 (de) 1984-03-13 1985-02-05 Sechswalzengeruest
DE3503756 1985-02-05

Publications (3)

Publication Number Publication Date
EP0154896A2 true EP0154896A2 (fr) 1985-09-18
EP0154896A3 EP0154896A3 (en) 1987-07-22
EP0154896B1 EP0154896B1 (fr) 1990-05-02

Family

ID=25819291

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85102211A Expired - Lifetime EP0154896B1 (fr) 1984-03-13 1985-02-28 Laminoir à six cylindres

Country Status (4)

Country Link
US (1) US4712416A (fr)
EP (1) EP0154896B1 (fr)
JP (1) JP2538552B2 (fr)
DE (2) DE3503756A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3811847A1 (de) * 1987-04-08 1988-10-20 Hitachi Ltd Verfahren zur regelung der arbeitswalzen-versetzung in einem walzgeruest
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
CN103212579A (zh) * 2013-04-19 2013-07-24 中冶南方工程技术有限公司 一种六辊轧机
EP3130408B1 (fr) 2015-07-08 2018-12-12 Primetals Technologies Japan, Ltd. Laminoir et procédé de laminage

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3249417B2 (ja) * 1997-02-24 2002-01-21 株式会社日立製作所 圧延機および圧延方法
US5839313A (en) * 1998-02-18 1998-11-24 Danieli United, A Division Of Danieli Corporation Rolling mill with intermediate crossed rolls background
DE19922373A1 (de) * 1999-05-14 2000-11-16 Sms Demag Ag Biegevorrichtung für die Arbeitswalzen eines Warmwalzgerüstes
JP3526554B2 (ja) * 2001-02-13 2004-05-17 株式会社日立製作所 タンデム圧延設備及びその圧延方法
DE102008032522A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Walzvorrichtung mit Verstellvorrichtung
DE102008032524A1 (de) 2008-07-10 2010-01-14 Sms Siemag Aktiengesellschaft Walzenanordnung

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1442671A (fr) * 1965-06-25 1966-06-17 Moeller & Neumann Verwalt Ges Laminoir quarto réversible pour le laminage à froid de feuillards
DE1248599B (de) * 1960-02-12 1967-08-31 Heinrich Schulte Vorrichtung zum radialen Verstellen der Walzen von Walzwerken in einer zur Walzrichtung parallel verlaufenden Ebene
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0084927A1 (fr) * 1982-01-06 1983-08-03 Hitachi, Ltd. Laminoir
DE3331339A1 (de) * 1983-08-31 1985-03-14 Mannesmann AG, 4000 Düsseldorf Walzgeruest mit arbeits- und stuetzwalzen sowie zwischen diesen vorgesehenen zwischenwalzen
EP0137919A2 (fr) * 1983-10-03 1985-04-24 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour déplacer des pièces de montage dans une cage de laminage
EP0143166A1 (fr) * 1983-10-03 1985-06-05 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir avec appui des cylindres de travail à l'aide de rouleaux d'appui

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB947013A (en) * 1961-04-21 1964-01-22 Schloemann Ag A method of rolling down thin and long strips consisting of difficultly workable materials, particularly high alloy steels, by hot reversing rolling
JPS5659518A (en) * 1979-10-19 1981-05-23 Ishikawajima Harima Heavy Ind Co Ltd Multistage rolling mill possessing shape controlling function
JPH10341A (ja) * 1996-06-19 1998-01-06 Nitto Denko Corp スパイラル型膜エレメントおよびその製造方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248599B (de) * 1960-02-12 1967-08-31 Heinrich Schulte Vorrichtung zum radialen Verstellen der Walzen von Walzwerken in einer zur Walzrichtung parallel verlaufenden Ebene
FR1442671A (fr) * 1965-06-25 1966-06-17 Moeller & Neumann Verwalt Ges Laminoir quarto réversible pour le laminage à froid de feuillards
EP0059417A1 (fr) * 1981-02-28 1982-09-08 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir
EP0084927A1 (fr) * 1982-01-06 1983-08-03 Hitachi, Ltd. Laminoir
DE3331339A1 (de) * 1983-08-31 1985-03-14 Mannesmann AG, 4000 Düsseldorf Walzgeruest mit arbeits- und stuetzwalzen sowie zwischen diesen vorgesehenen zwischenwalzen
EP0137919A2 (fr) * 1983-10-03 1985-04-24 Sms Schloemann-Siemag Aktiengesellschaft Dispositif pour déplacer des pièces de montage dans une cage de laminage
EP0143166A1 (fr) * 1983-10-03 1985-06-05 Sms Schloemann-Siemag Aktiengesellschaft Cage de laminoir avec appui des cylindres de travail à l'aide de rouleaux d'appui

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3811847A1 (de) * 1987-04-08 1988-10-20 Hitachi Ltd Verfahren zur regelung der arbeitswalzen-versetzung in einem walzgeruest
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
CN103212579A (zh) * 2013-04-19 2013-07-24 中冶南方工程技术有限公司 一种六辊轧机
CN103212579B (zh) * 2013-04-19 2016-01-20 中冶南方工程技术有限公司 一种六辊轧机
EP3130408B1 (fr) 2015-07-08 2018-12-12 Primetals Technologies Japan, Ltd. Laminoir et procédé de laminage

Also Published As

Publication number Publication date
EP0154896A3 (en) 1987-07-22
JP2538552B2 (ja) 1996-09-25
JPS60244409A (ja) 1985-12-04
EP0154896B1 (fr) 1990-05-02
DE3577409D1 (de) 1990-06-07
DE3503756A1 (de) 1985-09-19
US4712416A (en) 1987-12-15

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