EP1556178B1 - Low-friction bending system in a roll stand comprising several rolls - Google Patents

Low-friction bending system in a roll stand comprising several rolls Download PDF

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Publication number
EP1556178B1
EP1556178B1 EP03807758A EP03807758A EP1556178B1 EP 1556178 B1 EP1556178 B1 EP 1556178B1 EP 03807758 A EP03807758 A EP 03807758A EP 03807758 A EP03807758 A EP 03807758A EP 1556178 B1 EP1556178 B1 EP 1556178B1
Authority
EP
European Patent Office
Prior art keywords
bending
roll
blocks
vertical positioning
roll stand
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.)
Expired - Lifetime
Application number
EP03807758A
Other languages
German (de)
French (fr)
Other versions
EP1556178A1 (en
Inventor
Wolfgang Denker
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 Demag 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 Demag AG filed Critical SMS Demag AG
Publication of EP1556178A1 publication Critical patent/EP1556178A1/en
Application granted granted Critical
Publication of EP1556178B1 publication Critical patent/EP1556178B1/en
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
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/08—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts
    • B21B31/10—Interchanging rolls, roll mountings, or stand frames, e.g. using C-hooks; Replacing roll chocks on roll shafts by horizontally displacing, i.e. horizontal roll changing
    • B21B31/106—Vertical displacement of rolls or roll chocks during horizontal roll changing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B33/00—Safety devices not otherwise provided for; Breaker blocks; Devices for freeing jammed rolls for handling cobbles; Overload safety devices
    • 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
    • B21B2013/025—Quarto, four-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
    • 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
    • B21B31/24—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis mechanically, e.g. by thrust blocks, inserts for removal by screws

Definitions

  • the invention relates to a device for bending the rolls in a multi-roll rolling stand with inlet and outlet side fixed between the Walzeneinbaustükken and the stator windows acted upon by actuating means bending blocks.
  • Generic devices are used for flatness control of a rolled product as an actuator for work roll bending.
  • the actuator has a direct influence on the nip geometry in the band edge region, wherein the work rolls are positively bent around the edges of the overlying rollers and bent negatively around the edges of the rolling stock.
  • German Patent 22 50 953 is a rolling stand with working and support rollers and a roll bending device in which the chocks of the work rolls between anchored in the stator blocks blocks and to act on the work rolls bale correction acted upon by both sides, the blocks associated piston cylinder Units are known, wherein on each block, a lower and an upper guide piece is guided vertically displaceable, whereas the one guide piece receives the cylinder and the other guide piece is connected to the piston, and the guide pieces with the chocks by horizontal guides in the vertical direction positively are connected, which are continued for the roll change between the stands parallel to the rollers. In this way it should be achieved that for rolling bending on each side two piston-cylinder units are required.
  • the invention has for its object to reduce the frictional forces in a generic system.
  • the bending blocks of a rolling stand, a piston cylinder and the bending blocks of the opposite roll stand is assigned a Vertikalpositionier device.
  • a Spindelhubgetriebes By positioning and locking the bending blocks by means of the vertical positioning device, preferably a Spindelhubgetriebes can create a pivot point around which the chock can be pivoted. Thus, only one cylinder is necessary to initiate the drive and operator-side bending force in the bending blocks.
  • the device according to the invention can also be used for the intermediate roll bending in a six-high stand.
  • a use in reversing rolling stands is conceivable.
  • a roll stand 1 the work rolls 3, 3a are supported by the support rolls 2, 2a.
  • the chocks 4, 4a of the work rolls are connected to the roll stand 6, 6 'via the bending blocks 5, 5a, 5', 5a '.
  • a screw jack 10 is arranged, which is positionable and lockable via a drive 12.
  • the bending blocks 5 and 5a are connected via a piston cylinder 7, the piston 9 is mounted in the bending block 5a, while its connecting rod 8 is mounted in the bending block 5.
  • the bending blocks 5, 5a, 5 'and 5a' can be connected to the chocks 4, 4a of the work rolls 3, 3a on the one hand and the roll stand 6, 6 'on the other hand in a known manner.
  • the rolling direction of the continuous rolling stock is represented by the double arrow 11.
  • the bending blocks 5 ', 5a' positioned and locked with the Spindelhubgetriebe, while the piston cylinder 7, which connects the bending blocks 5 and 5a together, initiates the necessary bending force.
  • the invention is not limited to the use of Spindelhubgetrieben, but it can be used on any mechanics for vertical positioning, for example. On wedges with positive guidance, cylinder with clamping head and position sensor or on an eccentric shaft.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)
  • Control Of Metal Rolling (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Actuator (AREA)
  • Unwinding Webs (AREA)
  • Machines For Manufacturing Corrugated Board In Mechanical Paper-Making Processes (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Abstract

Device for bending rollers in a multiple roller rolling mill comprises a vertical positioning unit (10) assigned to bending blocks (5, 5a) of one roll stand (6), to a plunger cylinder (7) and to the bending blocks (5', 5a') of the opposite-lying roll stand (6').

Description

Die Erfindung betrifft eine Vorrichtung zum Biegen der Walzen in einem Mehrwalzen-Walzgerüst mit ein- und auslaufseitig zwischen den Walzeneinbaustükken und den Ständerfenstern befestigten von Stellmitteln beaufschlagbaren Biegeblöcken.The invention relates to a device for bending the rolls in a multi-roll rolling stand with inlet and outlet side fixed between the Walzeneinbaustükken and the stator windows acted upon by actuating means bending blocks.

Gattungsgemäße Vorrichtungen werden zur Planheitsregelung eines Walzproduktes als Stellglied zur Arbeitswalzenbiegung eingesetzt. Das Stellglied hat hierbei direkten Einfluß auf die Walzspaltgeometrie im Bandkantenbereich, wobei die Arbeitswalzen positiv um die Kanten der darüber liegenden Walzen gebogen und negativ um die Kanten des Walzgutes gebogen werden.Generic devices are used for flatness control of a rolled product as an actuator for work roll bending. The actuator has a direct influence on the nip geometry in the band edge region, wherein the work rolls are positively bent around the edges of the overlying rollers and bent negatively around the edges of the rolling stock.

Aus der deutschen Patentschrift 22 50 953 ist ein Walzgerüst mit Arbeits- und Stützwalzen und einer Walzenbiegeeinrichtung, in dem die Einbaustücke der Arbeitswalzen zwischen in den Ständerfenstern verankerten Blöcken geführt und zur Beaufschlagung für die Arbeitswalzen-Ballenkorrektur durch beidseitig beaufschlagbare, den Blöcken zugeordnete Kolben-Zylinder-Einheiten verbunden sind bekannt, wobei an jedem Block ein unteres und ein oberes Führungsstück vertikal verschiebbar geführt ist, wogegen das eine Führungsstück den Zylinder aufnimmt und das andere Führungsstück mit dem Kolben verbunden ist, und die Führungsstücke mit den Einbaustücken durch Horizontalführungen in vertikaler Richtung formschlüssig verbunden sind, die für den Walzenwechsel zwischen den Ständern parallel zu den Walzen fortgesetzt sind. Auf diese Weise soll erreicht werden, dass zur Walzenbiegung auf jeder Seite zwei Kolben-Zylinder-Einheiten erforderlich sind.From German Patent 22 50 953 is a rolling stand with working and support rollers and a roll bending device in which the chocks of the work rolls between anchored in the stator blocks blocks and to act on the work rolls bale correction acted upon by both sides, the blocks associated piston cylinder Units are known, wherein on each block, a lower and an upper guide piece is guided vertically displaceable, whereas the one guide piece receives the cylinder and the other guide piece is connected to the piston, and the guide pieces with the chocks by horizontal guides in the vertical direction positively are connected, which are continued for the roll change between the stands parallel to the rollers. In this way it should be achieved that for rolling bending on each side two piston-cylinder units are required.

Diese Vorrichtung hat sich in der Praxis bewährt. Nachteilig ist jedoch, dass die Zylinder antriebs- und bedienungsseitig, sowie einlauf- und auslaufseitig angeordnet sein müssen. Durch diese bewegliche Lagerung jeder Seite entstehen zwangsläufig hohe Reibungskräfte, die sich zudem negativ auf die Planheitsregelung auswirken.This device has proven itself in practice. The disadvantage, however, that the cylinder drive and operation side, and arranged inlet and outlet side have to be. By this movable storage of each side inevitably high friction forces, which also have a negative effect on the flatness control.

Der Erfindung liegt die Aufgabe zugrunde, die Reibungskräfte in einem gattungsgemäßen System zu reduzieren.The invention has for its object to reduce the frictional forces in a generic system.

Zur Lösung dieser Aufgabe wird vorgeschlagen, dass den Biegeblöcken des einen Walzständers ein Kolbenzylinder und den Biegeblöcken des gegenüberliegenden Walzenständers eine Vertikalpositionier-Einrichtung zugeordnet ist.To solve this problem it is proposed that the bending blocks of a rolling stand, a piston cylinder and the bending blocks of the opposite roll stand is assigned a Vertikalpositionier device.

Durch das positionieren und arretieren der Biegeblöcke mittels der Vertikalpositionier-Einrichtung, vorzugsweise eines Spindelhubgetriebes läßt sich ein Drehpunkt erzeugen, um den das Einbaustück geschwenkt werden kann. Zur Einleitung der antriebs- und bedienungsseitigen Biegekraft in die Biegeblöcke ist somit nur jeweils ein Zylinder notwendig.By positioning and locking the bending blocks by means of the vertical positioning device, preferably a Spindelhubgetriebes can create a pivot point around which the chock can be pivoted. Thus, only one cylinder is necessary to initiate the drive and operator-side bending force in the bending blocks.

Dadurch, dass im Walzgerüst nur noch zwei Zylinder für die Einleitung der Biegekraft in die Biegeblöcke im Einsatz sind, läßt sich die Reibungskraft erheblich reduzieren.The fact that in the rolling stand only two cylinders for the initiation of the bending force in the bending blocks in use, the friction force can be significantly reduced.

Durch das Spindelhubgetriebe läßt sich auch der Abschliffbereich der Walzen kompensieren.By the screw jack also the Abschliffbereich of the rollers can be compensated.

Die erfindungsgemäße Vorrichtung läßt sich auch für die Zwischenwalzenbiegung in einem Sechswalzengerüst einsetzen. Auch ein Einsatz in Reversierwalzgerüsten ist denkbar.The device according to the invention can also be used for the intermediate roll bending in a six-high stand. A use in reversing rolling stands is conceivable.

Weitere vorteilhafte Ausgestaltungen der Erfindung sind in den Unteransprüchen offenbart.Further advantageous embodiments of the invention are disclosed in the subclaims.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt.In the drawing, an embodiment of the invention is shown.

Es zeigen:

Figur 1
ein Seitenansichtsauschnitt eines Quarto-Walzgerüstes von der Antriebsseite her gesehen,
Figur 2
eine Aufsicht auf die Arbeitswalzenebene des Walzgerüstes aus Fig. 1.
Show it:
FIG. 1
a side view section of a four-high stand seen from the drive side,
FIG. 2
a plan view of the work roll level of the rolling stand of FIG. 1.

In einem Walzgerüst 1 werden die Arbeitswalzen 3, 3a durch die Stützwalzen 2, 2a abgestützt. Die Einbaustücke 4, 4a der Arbeitswalzen sind über die Biegeblöcke 5, 5a, 5', 5a' mit dem Walzenständer 6, 6' verbunden. Zwischen den Biegeblöcken 5' und 5a' ist ein Spindelhubgetriebe 10 angeordnet, welches über einen Antrieb 12 positionierbar und arretierbar ist.In a roll stand 1, the work rolls 3, 3a are supported by the support rolls 2, 2a. The chocks 4, 4a of the work rolls are connected to the roll stand 6, 6 'via the bending blocks 5, 5a, 5', 5a '. Between the bending blocks 5 'and 5a' a screw jack 10 is arranged, which is positionable and lockable via a drive 12.

Die Biegeblöcke 5 und 5a sind über einen Kolbenzylinder 7 verbunden, dessen Kolben 9 im Biegeblock 5a gelagert ist, während seine Verbindungsstange 8 im Biegeblock 5 montiert ist. Die Biegeblöcke 5, 5a, 5' und 5a' lassen sich mit den Einbaustücken 4, 4a der Arbeitswalzen 3, 3a einerseits und dem Walzenständer 6, 6' andererseits in bekannter Weise verbinden.The bending blocks 5 and 5a are connected via a piston cylinder 7, the piston 9 is mounted in the bending block 5a, while its connecting rod 8 is mounted in the bending block 5. The bending blocks 5, 5a, 5 'and 5a' can be connected to the chocks 4, 4a of the work rolls 3, 3a on the one hand and the roll stand 6, 6 'on the other hand in a known manner.

Die Walzrichtung des durchlaufenden Walzgutes ist durch den Doppelpfeil 11 dargestellt. Zur Planheitsregelung werden die Biegeblöcke 5', 5a' mit dem Spindelhubgetriebe positioniert und arretiert, während der Kolbenzylinder 7, welcher die Biegeblöcke 5 und 5a miteinander verbindet, die notwendige Biegekraft einleitet.The rolling direction of the continuous rolling stock is represented by the double arrow 11. For flatness control, the bending blocks 5 ', 5a' positioned and locked with the Spindelhubgetriebe, while the piston cylinder 7, which connects the bending blocks 5 and 5a together, initiates the necessary bending force.

Die Erfindung ist nicht auf den Einsatz von Spindelhubgetrieben beschränkt, sondern es kann auf jede Mechanik zur vertikalen Positionierung zurückgegriffen werden, bspw. auf Keile mit Zwangsführung, Zylinder mit Klemmkopf und Positionsgeber oder auf eine Exzenterwelle.The invention is not limited to the use of Spindelhubgetrieben, but it can be used on any mechanics for vertical positioning, for example. On wedges with positive guidance, cylinder with clamping head and position sensor or on an eccentric shaft.

Claims (4)

  1. Device for bending the rolls in a mutli-roll roll stand with bending blocks (5, 5a; 5', 5a') which are fastened at the inlet side and outlet side between the roll chocks and the housing openings and which are loadable by setting means, characterised in that a piston-cylinder (7) is associated with the bending blocks (5, 5a) of one roll housing (6) and a vertical positioning device (10) is associated with the bending blocks (5', 5a') of the opposite roll housing (6).
  2. Device according to claim 1, characterised in that a roll change position is vertically settable by way of the vertical positioning device (10).
  3. Device according claim 1 or 2, characterised in that the piston-cylinders (7) each consist of a piston (8) arranged in one bending block (5) and a connecting rod (9) to the other bending block (5a).
  4. Device according to one of claims 1 to 3, characterised in that the vertical positioning device (10) is constructed as the spindle stroke gear, as wedges with constrained guidance, as cylinders with clamping head and position transmitter, as eccentric shaft or as another mechanism for vertical positioning.
EP03807758A 2002-09-20 2003-07-25 Low-friction bending system in a roll stand comprising several rolls Expired - Lifetime EP1556178B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10243677A DE10243677A1 (en) 2002-09-20 2002-09-20 Device for bending rollers in a multiple roller rolling mill comprises a vertical positioning unit assigned to bending blocks of one roll stand, to a plunger cylinder and to the bending blocks of the opposite-lying roll stand
DE10243677 2002-09-20
PCT/EP2003/008223 WO2004033120A1 (en) 2002-09-20 2003-07-25 Low-friction bending system in a roll stand comprising several rolls

Publications (2)

Publication Number Publication Date
EP1556178A1 EP1556178A1 (en) 2005-07-27
EP1556178B1 true EP1556178B1 (en) 2006-05-17

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ID=31969310

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03807758A Expired - Lifetime EP1556178B1 (en) 2002-09-20 2003-07-25 Low-friction bending system in a roll stand comprising several rolls

Country Status (15)

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US (2) US20060021412A1 (en)
EP (1) EP1556178B1 (en)
JP (1) JP4732752B2 (en)
KR (1) KR100990866B1 (en)
CN (1) CN100342988C (en)
AT (1) ATE326295T1 (en)
AU (1) AU2003250179A1 (en)
BR (1) BR0313605B1 (en)
CA (1) CA2498303C (en)
DE (2) DE10243677A1 (en)
ES (1) ES2260692T3 (en)
RU (1) RU2313410C2 (en)
UA (1) UA82333C2 (en)
WO (1) WO2004033120A1 (en)
ZA (1) ZA200501197B (en)

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CN112178003B (en) * 2020-09-16 2023-07-21 马鞍山钢铁股份有限公司 Working roll locking device of leveling machine bending roll cylinder and assembly method thereof

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Also Published As

Publication number Publication date
UA82333C2 (en) 2008-04-10
RU2313410C2 (en) 2007-12-27
KR20050057252A (en) 2005-06-16
CA2498303A1 (en) 2004-04-22
DE50303390D1 (en) 2006-06-22
AU2003250179A1 (en) 2004-05-04
ATE326295T1 (en) 2006-06-15
JP2006500225A (en) 2006-01-05
BR0313605B1 (en) 2012-09-04
KR100990866B1 (en) 2010-10-29
JP4732752B2 (en) 2011-07-27
CN1681610A (en) 2005-10-12
US20100018275A1 (en) 2010-01-28
WO2004033120A1 (en) 2004-04-22
CN100342988C (en) 2007-10-17
ZA200501197B (en) 2005-09-12
BR0313605A (en) 2005-06-21
ES2260692T3 (en) 2006-11-01
DE10243677A1 (en) 2004-04-01
CA2498303C (en) 2010-09-14
US20060021412A1 (en) 2006-02-02
RU2005111758A (en) 2005-09-20
EP1556178A1 (en) 2005-07-27

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