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EP0091540A1 - Roll stand with axially movable rolls - Google Patents

Roll stand with axially movable rolls Download PDF

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Publication number
EP0091540A1
EP0091540A1 EP83101219A EP83101219A EP0091540A1 EP 0091540 A1 EP0091540 A1 EP 0091540A1 EP 83101219 A EP83101219 A EP 83101219A EP 83101219 A EP83101219 A EP 83101219A EP 0091540 A1 EP0091540 A1 EP 0091540A1
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EP
European Patent Office
Prior art keywords
rolls
roll
rollers
pair
work
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
EP83101219A
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German (de)
French (fr)
Other versions
EP0091540B1 (en
Inventor
Hugo Dr. Feldmann
Friedrich Dr. Hollmann
Gerd Beisemann
Horst Gärtner
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.)
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Publication date
Application filed by SMS Schloemann Siemag AG, Schloemann Siemag AG filed Critical SMS Schloemann Siemag AG
Priority to AT83101219T priority Critical patent/ATE17663T1/en
Publication of EP0091540A1 publication Critical patent/EP0091540A1/en
Application granted granted Critical
Publication of EP0091540B1 publication Critical patent/EP0091540B1/en
Expired legal-status Critical Current

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    • 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

Definitions

  • the invention relates to a roll stand with two work rolls, each of which is optionally supported directly or via an intermediate roll on a back-up roll, the rolls of a pair of rolls being axially displaceable in opposite directions and each of the displaceable rolls being axially parallel over at least part of the length of the roll bale Straight, deviating, curved contour.
  • the curved contour extends over the entire length of the roll barrel and the contours of the two rolls of the pair of rolls complement each other only in a certain axial position of the rolls.
  • the invention relates to a further development of the roll stands according to patent 30 38 865 and relates to the design of roll stands of the type which, in addition to a pair of work rolls, has at least one pair of support rolls - four-roll stand - or which in addition to the pair of work rolls and the pair of support rolls The pair of intermediate rolls contains a six-roll stand.
  • rollers of a plurality of roller pairs of the roller set have an adapted curved contour on their roller bales and are thereby displaceable relative to one another.
  • support rolls and work rolls of the set of rolls have an adapted curved contour on their roll bales and at least the rolls of a pair of rolls are axially displaceable relative to one another and / or with respect to the rolls of the other pair of rolls.
  • support rolls, intermediate rolls and work rolls have an adapted curved contour on their roll barrel and at least the rolls of two pairs of rolls are axially displaceable relative to one another and / or relative to the rolls of the other roll pairs.
  • the four-roll mill stand 51 according to FIG. 1 has a set of rolls consisting of the pair of backup rolls 52, 53 and the pair of work rolls 54, 55.
  • the pair of work rolls 54, 55 delimits the roll gap 56 for the rolled strip 57.
  • the height of the roll gap 56 is thereby determined in the usual manner by adjusting devices (not shown) which act on the chocks of the support roller pair 52 and 53.
  • the roll balls 52 'and 53' of the support rolls 52 and 53 have a curved contour over their entire length, in such a way that in the case of the upper support roll 52 this contour is convex over the left half of the roll roll 52 'and over the right Half of the same is concave, while in the lower support roller 53 'it is concave over the left half of the roller barrel 53' and convex over the right half of the same.
  • Both sections of the roll barrel 52 'and 53' are determined by the same curvature curves and it can also be seen from Fig.1 that both support rollers 52 and 53 have an identical - here bottle-like - shape of the roll barrel 52 'and 53' and in the roll stands of the roll stand 51 are accommodated relative to one another in the installation position turned through 180 °.
  • the two work rolls 54 and 55 of the work roll pair also have roll bales 54 'and 55' with a contour that is curved over their entire length, this being designed to be complementary to the contour of the roll bale 52 'and 53' of the adjacent support roll 52 and 53, respectively.
  • the roll bale 54 'of the upper work roll 54 has a concave course over its left half and a convex course over its right half
  • the roll bale 55' of the lower work roll 55 has a convex curve over the left half and a concave curve over the right half.
  • the two work rolls 54 and 55 have an identical — in this case bottle-like — shape of their roll bales 54 ′ and 55 ′′ and are also accommodated in the roll stands relative to one another in an installation position turned through 180 °.
  • the roller gap 56 has a constant cross-sectional height over the entire bale length, although it runs slightly S-shaped.
  • the rolled strip 57 is therefore rolled out over its entire width with a uniform thickness.
  • a further influence on the shape of the roll gap 56 is, however, still possible in that a relative axial displacement of the work rolls 54 and / or 55 to the support rolls 52 and / or 53 is also carried out.
  • the pressure distribution between the roller bales 52 'and 54' and 53 'of the support roller set 52, 53 and the work roller set 54, 55, which are in contact with one another, can be influenced very sensitively, and thus the shape of the roller gap 56 can be further optimized.
  • the basic structure of the six-roll mill stand 61 according to FIG. 2 is the same as that of the four-roll mill stand 51 according to FIG. 1.
  • the set of rolls here does not only consist of the support roll pair 62, 63 comprising the two support rolls 62 and 63 and that of the two Work rolls 64 and 65 comprising work roll pair 64, 65, but there is additionally an intermediate roll pair 68, 69 consisting of the two intermediate rolls 68 and 69. Between the two work rolls 64 and 65 of the work roll pair 64, 65, the roll gap 66 for the rolled strip 67 is limited.
  • the contours, which are each convex over one bale half and concave over the other bale half, are on the roller bales 62 ', 68', 64 'and 63', 69 ', 65' of the support rollers 62, 63, the intermediate rollers 68, 69 which are in contact with one another and the work rolls 64, 65 are coordinated with one another such that they complement one another in the central axial position of all the roll pairs of the six-roll stand 61 according to FIG. 2.
  • the roll gap 66 for the rolled strip 67 therefore, despite its slightly S-shaped cross-sectional shape, has the same height over its entire length.
  • the contour of the nip 66 can then be delicately influenced by the additional presence of the intermediate roller pair 68, 69 even more sensitive than in the case of the four-roll stand 51 according to FIG. 1.
  • the support rolls 62 and 63 of the support roll pair 62, 63 as well as the work rolls 64 and 65 of the work roll pair 64, 65 and finally the intermediate rolls 68 and 69 of the intermediate roll pair 68 and 69 have identical - bottle-like shape of the roll bale and are accommodated in the roll stands of the roll stand relative to one another in each case in an installation position turned through 180 °.
  • six-roll stands 71 and 81 can also be varied with respect to the design of their roll set compared to the design according to FIG. 2.
  • the support rollers 72 and 73 of the support roller pair use roller bales 72 'and 73' of cylindrical shape over their entire length or conventionally spherical in shape, the work rollers 74 and 75 of the work roller pair 74, 75 and the intermediate rollers 78 and 79 of the intermediate roller pair 78, 79 equipped with roller balls 74 ', 75' and 78 ', 79', which have a curved contour over their entire length.
  • the work rolls 84 and 85 of the work roll pair 84, 85 roll bales 84 'and 85' have a cylindrical or conventionally spherical shape over their entire length.
  • the roll balls 82 ', 83' of the support rolls 82 and 83 and the roll balls 88 'and 89' of the intermediate rolls 88 and 89 are provided with a contour that is curved over their entire length.
  • the influencing of the roll gap 86 for the rolled strip 87 takes place here through the axially displaceable arrangement of the support rolls 82 and 83 and / or the intermediate rolls 88 and 89, while the work rolls 84 and 85 are axially immovable in their chocks.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
  • Metal Rolling (AREA)
  • Control Of Metal Rolling (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Bending Of Plates, Rods, And Pipes (AREA)

Abstract

1. Four-high roll stand with working rolls (54 and 55), which bear on backing rolls (52 and 53), where in the working rolls (54 and 55) are axially displaceable one relative to the other and the working rolls (54 and 55) as well as also the backing rolls (52 and 53) are provided with a curved outline, which extends over the entire barrel length and is composed of a convex and a concave region and has a structure, in which the barrel outlines of mutually bearing (52, 54, 53, 55) or co-operating (52 and 53, 54 and 55) rolls complementarily augment each other exclusively in a certain relative axial setting of these rolls, characterised thereby, that also the backing rolls (52 and 53) are axially displaceable one relative to the other and that the displacement of the backing rolls (52 and 53) takes place either independently of or together with the working rolls (54 and 55).

Description

Die Erfindung betrifft ein Walzgerüst mit zwei Arbeitswalzen, von denen sich gegebenenfalls jede unmittelbar oder über eine Zwischenwalze an einer Stützwalze abstützt, wobei die Walzen eines Walzenpaares gegensinnig axial verschiebbar sind und jede der verschiebbaren Walzen mindestens über einen Teil der Länge des Walzenballens eine von einer achsparallelen Geraden abweichende, gekrümmte Kontur aufweist.The invention relates to a roll stand with two work rolls, each of which is optionally supported directly or via an intermediate roll on a back-up roll, the rolls of a pair of rolls being axially displaceable in opposite directions and each of the displaceable rolls being axially parallel over at least part of the length of the roll bale Straight, deviating, curved contour.

Bei einem derartigen Walzgerüst erstreckt sich nach Patent 30 38 865 .die gekrümmte Kontur über die ganze Länge des Walzenballens und die Konturen der beiden Walzen des Walzenpaares ergänzen sich ausschließlich in einer bestimmten Axialstellung der Walzen zueinander lückenlos. Durch diese Ausgestaltung wird dabei auf einfache Weise ein Walzgerüst geschaffen, bei dem sich die Gestalt des Walzspaltes und damit der Walzbandquerschnitt praktisch ausschließlich durch Axialverschiebung der mit der gekrümmten Kontur versehenen Walzen beeinflussen und die Bandkantenpressung ohne Aufwand verringern läßt.In the case of such a roll stand, according to patent 30 38 865, the curved contour extends over the entire length of the roll barrel and the contours of the two rolls of the pair of rolls complement each other only in a certain axial position of the rolls. With this configuration, a roll stand is created in a simple manner, in which the shape of the roll gap and thus the roll strip cross section can be influenced practically exclusively by axial displacement of the rolls provided with the curved contour and the strip edge pressure can be reduced without effort.

Vorteilhaft ist dabei nicht nur, daß die vorgeschlagenen Maßnahmen sich auch bei Zweiwalzen-Walzgerüsten realisieren lassen, sondern es wird außerdem auch erreicht, daß die Gestalt des Walzspaltes und damit die Querschnittsform des Walzbandes schon durch geringe Verschiebewege der die gekrümmte Kontur aufweisenden Walzen beeinflußt werden kann, ohne daß eine direkte Anpassung der Position der verschiebbaren Walzen an die Walzgutbreite erfolgen muß.It is not only advantageous that the proposed measures can also be implemented in two-roll roll stands, but it is also achieved that the shape of the roll gap and thus the cross-sectional shape of the rolled strip can be influenced even by small displacement paths of the rolls having the curved contour without a direct adjustment of the position of the displaceable rollers to the width of the rolling stock.

Die Erfindung befaßt sich mit einer Weiterbildung der Walzgerüste nach Patent 30 38 865 und betrifft-dabei die Ausgestaltung von Walzgerüsten derjenigen Art, die außer einem Arbeitswalzenpaar mindestens noch ein Stützwalzenpaar aufweist - Vierwalzen-Walzgerüst -, oder die zusätzlich zum Arbeitswalzenpaar und zum Stützwalzenpaar noch ein Zwischenwalzenpaar enthält -Sechswalzen-Walzgerüst-.The invention relates to a further development of the roll stands according to patent 30 38 865 and relates to the design of roll stands of the type which, in addition to a pair of work rolls, has at least one pair of support rolls - four-roll stand - or which in addition to the pair of work rolls and the pair of support rolls The pair of intermediate rolls contains a six-roll stand.

Durch die Weiterbildung des Walzgerüstes nach Patent 30 38 865 soll dabei nicht nur die Gleichmäßigkeit der Pressungsverteilung über die Kontaktlänge zweier benachbarter Walzen verbessert werden, sondern es wird auch noch angestrebt, die kontinuierliche mechanische Beeinflussung der Gestalt des Walzspaltes zu erhöhen.The further development of the roll stand according to patent 30 38 865 is not only intended to improve the uniformity of the pressure distribution over the contact length of two adjacent rolls, but it is also aimed at increasing the continuous mechanical influence on the shape of the roll gap.

Die Lösung dieser Aufgabe ergibt sich erfindungsgemäß grund-, sätzlich dadurch, daß nach dem Kennzeichen des Anspruchs 1 die Walzen mehrerer Walzenpaares des Walzensatzes an ihren Walzenballen eine angepaßt gekrümmte Kontur aufweisen und dabei gegeneinander verschiebbar sind.This object is achieved according to the invention, in principle, in that, according to the characterizing part of claim 1, the rollers of a plurality of roller pairs of the roller set have an adapted curved contour on their roller bales and are thereby displaceable relative to one another.

Bei einem Vierwalzen-Walzgerüst haben dabei nach Anspruch 2 Stützwalzen und Arbeitswalzen des Walzensatzes eine einander angepaßt gekrümmte Kontur an ihren Walzenballen und mindestens die Walzen eines Walzenpaares sind gegeneinander und/oder gegenüber den Walzen des anderen Walzenpaares axial verschiebbar vorgesehen.In a four-roll stand, support rolls and work rolls of the set of rolls have an adapted curved contour on their roll bales and at least the rolls of a pair of rolls are axially displaceable relative to one another and / or with respect to the rolls of the other pair of rolls.

Bei einem Sechswalzen-Walzgerüst ist nach Anspruch 3 vorgesehen, daß Stützwalzen, Zwischenwalzen und Arbeitswalzen eine einander angepaßt gekrümmte Kontur an ihrem Walzenballen haben und dabei mindestens die Walzen zweier Walzenpaare gegeneinander und/oder gegenüber den Walzen der anderen Walzenpaare axial verschiebbar sind.In a six-roll mill stand according to claim 3 it is provided that support rolls, intermediate rolls and work rolls have an adapted curved contour on their roll barrel and at least the rolls of two pairs of rolls are axially displaceable relative to one another and / or relative to the rolls of the other roll pairs.

Gemäß Anspruch 4 besteht eine Ausgestaltungsmöglichkeit für ein Sechswalzen-Walzgerüst aber auch darin,-daß ausschließlich die Stützwalzen zylindrische oder konventionell ballige Walzenballen aufweisen, während nach Anspruch 5 ausschließlich die, Arbeitswalzen mit zylindrischen oder konventionell balligen Walzenballen versehen sind.According to claim 4, there is an embodiment for a six-roll mill stand, however, that only the back-up rolls have cylindrical or conventionally crowned roll balls, while according to claim 5, only the work rolls are provided with cylindrical or conventionally crowned roll balls.

Nachfolgend wird die Erfindung an in der Zeichnung dargestellten Ausführungsbeispielen erläutert. Hierbei zeigt

  • Fig. 1 in Walzrichtung gesehen ein Vierwalzen-Walzgerüst,
  • Fig. 2 eine der Fig. 1 entsprechende Darstellung eines Sechswalzen-Walzgerüstes,
  • Fig. 3 ebenfalls in Walzrichtung gesehen, eine andere erfindungsgemäße Bauart eines Sechswalzen-Walzgerüstes und
  • Fig. 4 eine weitere Ausbildungsmöglichkeit für ein Sechswalzen-Walzgerüst.
The invention is explained below using exemplary embodiments shown in the drawing. Here shows
  • 1 seen in the rolling direction, a four-roll stand,
  • 2 a representation corresponding to FIG. 1 of a six-roll stand,
  • Fig. 3 also seen in the rolling direction, another type of construction according to the invention of a six-roll stand and
  • Fig. 4 shows another training option for a six-roll stand.

In der Zeichnung sind der Einfachheit halber jeweils nur die Walzensätze des Vierwalzen-Walzgerüstes nach Fig. 1 und der Sechswalzen-Walzgerüste nach den Fig. 2 bis 4 dargestellt.In the drawing, for the sake of simplicity, only the roll sets of the four-roll mill stand according to FIG. 1 and the six-roll mill stands according to FIGS. 2 to 4 are shown.

Das Vierwalzen-Walzgerüst 51 nach Fig. 1 weist dabei einen Walzensatz auf, der aus dem Stützwalzenpaar 52, 53 und dem Arbeitswalzenpaar 54, 55 besteht.The four-roll mill stand 51 according to FIG. 1 has a set of rolls consisting of the pair of backup rolls 52, 53 and the pair of work rolls 54, 55.

Das Arbeitswalzenpaar 54, 55 begrenzt dabei den Walzspalt 56 für das Walzband 57. Die Höhe des Walzspaltes 56 wird dabei in üblicher Weise durch (nicht gezeigte) Anstellvorrichtungen bestimmt, welche an den Einbaustücken des Stützwalzenpaares 52 und 53 angreifen.The pair of work rolls 54, 55 delimits the roll gap 56 for the rolled strip 57. The height of the roll gap 56 is thereby determined in the usual manner by adjusting devices (not shown) which act on the chocks of the support roller pair 52 and 53.

Die Walzenballen 52' und 53' der Stützwalzen 52 und 53 weisen über ihre gesamte Länge eine gekrümmte Kontur auf, und zwar von solcher Art, daß diese Kontur im Falle der oberen Stützwalze 52 über die linke Hälfte des Walzenballens 52' konvex und über die rechte Hälfte desselben konkav verläuft, während sie bei der unteren Stützwalze 53' über die linke Hälfte des Walzenballens 53' konkav und über die rechte Hälfte desselben konvex gewölbt ist. Beide Abschnitte der Walzenballen 52' und 53' werden dabei von gleichen Krümmungskurven bestimmt und es ist aus Fig.1 auch ersichtlich, daß beide Stützwalzen 52 und 53 eine identische - hier flaschenähnliche - Form des Walzenballens 52' und 53' haben sowie in den Walzenständern des Walzgerüstes 51 relativ zueinander in um 180° gewendeter Einbaulage aufgenommen sind.The roll balls 52 'and 53' of the support rolls 52 and 53 have a curved contour over their entire length, in such a way that in the case of the upper support roll 52 this contour is convex over the left half of the roll roll 52 'and over the right Half of the same is concave, while in the lower support roller 53 'it is concave over the left half of the roller barrel 53' and convex over the right half of the same. Both sections of the roll barrel 52 'and 53' are determined by the same curvature curves and it can also be seen from Fig.1 that both support rollers 52 and 53 have an identical - here bottle-like - shape of the roll barrel 52 'and 53' and in the roll stands of the roll stand 51 are accommodated relative to one another in the installation position turned through 180 °.

Auch die beiden Arbeitswalzen 54 und 55 des Arbeitswalzenpaares haben Walzenballen 54' und 55' mit über ihre gesamte Länge gekrümmter Kontur, wobei diese komplementär zur Kontur des Walzballens 52' bzw. 53' der jeweils benachbarten Stützwalze 52 bzw. 53 ausgelegt ist. Demnach hat der Walzballen 54' der oberen Arbeitswalze 54 über seine linke Hälfte einen konkaven und über seine rechte Hälfte einen konvexen Verlauf, während umgekehrt der Walzballen 55' der unteren Arbeitswalze 55 über die linke Hälfte konvex und über die rechte Hälfte konkav gekrümmt verläuft. Auch die beiden Arbeitswalzen 54 und 55 haben nach Fig. 1 eine identische - hier flaschenähnliche - Form ihrer Walzballen 54' und 55" und sind auch relativ zueinander in um 180° gewendeter Einbaulage in den Walzenständern aufgenommen.The two work rolls 54 and 55 of the work roll pair also have roll bales 54 'and 55' with a contour that is curved over their entire length, this being designed to be complementary to the contour of the roll bale 52 'and 53' of the adjacent support roll 52 and 53, respectively. Accordingly, the roll bale 54 'of the upper work roll 54 has a concave course over its left half and a convex course over its right half, while conversely the roll bale 55' of the lower work roll 55 has a convex curve over the left half and a concave curve over the right half. 1, the two work rolls 54 and 55 have an identical — in this case bottle-like — shape of their roll bales 54 ′ and 55 ″ and are also accommodated in the roll stands relative to one another in an installation position turned through 180 °.

Mindestens die Walzen eines der beiden Walzenpaare 52, 53 und 54, 55 des Vierwalzen-Walzgerüstes 51 nach Fig. 1, vorzugsweise aber die Walzen beider Walzenpaare 52, 53 und 54, 55 sind über ihre Zapfen axial verschiebbar in den (nicht gezeigten) Einbaustücken des Walzgerüstes gelagert, wobei die Vorrichtungen zur Axialverstellung jeweils an einem der Walzenzapfen angreifen.At least the rollers of one of the two pairs of rollers 52, 53 and 54, 55 of the four-roll stand 51 according to FIG. 1, but preferably the rollers of both pairs of rollers 52, 53 and 54, 55 are axially displaceable in the chocks (not shown) via their pins of the roll stand, the devices for axial adjustment each attacking one of the roll journals.

Bei mittlerer Axialeinstellung sowohl der Stützwalzen 52 und 53 des Stützwalzenpaares 52, 53 als auch der Arbeitswalzen 54, 55 des Arbeitswalzenpaares 54, 55, wie sie in Fig. 1 gezeigt ist, weist der Walzspalt 56 über die gesamte Ballenlänge eine gleichbleibende Querschnittshöhe auf, obwohl er leicht S-förmig geschweift verläuft. Das Walzband 57 wird daher über seine gesamte Breite mit gleichmäßiger Dicke ausgewalzt.With medium axial adjustment of both the support rollers 52 and 53 of the support roller pair 52, 53 and the work rollers 54, 55 of the work roller pair 54, 55, as shown in FIG. 1, the roller gap 56 has a constant cross-sectional height over the entire bale length, although it runs slightly S-shaped. The rolled strip 57 is therefore rolled out over its entire width with a uniform thickness.

Die Höhe des Walzspaltes 57 zwischen den beiden geschweift konturierten Ballen 54', 55' der Arbeitswalzen 54 und 55 ergibt sich nach der Formel

Figure imgb0001
mit a'= Abstand der Arbeitswalzenachsen und r. (z) = Walzenradien.The height of the roll gap 57 between the two curved contoured bales 54 ', 55' of the work rolls 54 and 55 results from the formula
Figure imgb0001
 with a '= distance between the work roll axes and r. (z) = roll radii.

Verschiebt man nun eine oder beide Arbeitswalzen 54 und 55 zusammen mit der mit ihr in Kontaktberührung stehenden Stützwalze 52 und 53 in Axialrichtung um bestimmte Beträge v1 und v2, dann ändert sich die Gestalt des Walzspaltes 56 entsprechend der Formel

Figure imgb0002
If one or both of the work rolls 54 and 55 are moved together with the support rolls 52 and 53 in contact with it in the axial direction by specific amounts v 1 and v 2 , then the shape of the roll gap 56 changes according to the formula
Figure imgb0002

Hierdurch ist also eine kontinuierliche mechanische Beeinflussung der Gestalt des Walzspaltes 56 möglich,und zwar dergestalt, daß je nach vorgenommener Einstellung entweder der Walzdruck auf die Längskanten des Walzbandes 57 erhöht oder aber vermindert wird.As a result, a continuous mechanical influence on the shape of the roll gap 56 is possible, in such a way that, depending on the setting made, either the rolling pressure on the longitudinal edges of the rolled strip 57 is increased or reduced.

Eine weitere Beeinflussung der Gestalt des Walzspaltes 56 ist aber noch dadurch möglich, daß auch eine relative Axialverschiebung der Arbeitswalzen 54 und/oder 55 zu den Stützwalzen 52 und/oder 53 vorgenommen wird. Hierdurch läßt sich die Pressungsverteilung zwischen den miteinander in Kontaktberührung stehenden Walzenballen 52' und 54' sowie 53' des Stützwalzensatzes 52, 53 und des Arbeitswalzensatzes 54, 55 sehr feinfühlig beeinflussen und damit auch die Gestalt des Walzspaltes 56 weiter optimieren.A further influence on the shape of the roll gap 56 is, however, still possible in that a relative axial displacement of the work rolls 54 and / or 55 to the support rolls 52 and / or 53 is also carried out. As a result, the pressure distribution between the roller bales 52 'and 54' and 53 'of the support roller set 52, 53 and the work roller set 54, 55, which are in contact with one another, can be influenced very sensitively, and thus the shape of the roller gap 56 can be further optimized.

Der Grundaufbau des Sechswalzen-Walzgerüstes 61 nach Fig. 2 ist der gleiche wie derjenige des Vierwalzen-Walzgerüstes 51 nach Fig. 1. Jedoch besteht hier der Walzensatz nicht nur aus dem die beiden Stützwalzen 62 und 63 umfassenden Stützwalzenpaar 62, 63 und dem die beiden Arbeitswalzen 64 und 65 umfassenden Arbeitswalzenpaar 64, 65, sondern es ist zusätzlich noch ein aus den beiden Zwischenwalzen 68 und 69 bestehendes Zwischenwalzenpaar 68, 69 vorgesehen. Zwischen den beiden Arbeitswalzen 64 und 65 des Arbeitswalzenpaares 64, 65 wird der Walzspalt 66 für das Walzband 67 begrenzt.The basic structure of the six-roll mill stand 61 according to FIG. 2 is the same as that of the four-roll mill stand 51 according to FIG. 1. However, the set of rolls here does not only consist of the support roll pair 62, 63 comprising the two support rolls 62 and 63 and that of the two Work rolls 64 and 65 comprising work roll pair 64, 65, but there is additionally an intermediate roll pair 68, 69 consisting of the two intermediate rolls 68 and 69. Between the two work rolls 64 and 65 of the work roll pair 64, 65, the roll gap 66 for the rolled strip 67 is limited.

Sämtliche Walzen des Sechswalzen-Walzgerüstes 61 nach Fig. 2 d.h. also, nicht nur die Stützwalzen 62 und 63 des Stützwalzenpaares 62, 63 und die Arbeitswalzen 64, 65 des Arbeitswalzenpaares 64, 65, sondern auch die Zwischenwalzen 68 und 69 des Zwischenwalzenpaares 68, 69 haben Walzenballen 62', 63'; 64', 65'; 68', 69' mit über ihre gesamte Länge gekrümmter Kontur. Die jeweils über eine Ballenhälfte konvex und über die andere Ballenhälfte konkav verlaufenden Konturen sind an den miteinander in Kontaktberührung stehenden Walzenballen 62', 68', 64' und 63', 69', 65' der Stützwalzen 62, 63, der Zwischenwalzen 68, 69 und der Arbeitswalzen 64, 65 so aufeinander abgestimmt, daß sie sich in mittlerer Axialstellung sämtlicher Walzenpaare des Sechswalzen-Walzgerüstes 61 nach Fig. 2 komplementär ergänzen. Der Walzspalt 66 für das Walzband 67 weist daher trotz seiner leicht S-förmig verlaufenden Querschnittsgestalt über seine ganze Länge gleiche Höhe auf.2, that is, not only the support rolls 62 and 63 of the support roll pair 62, 63 and the work rolls 64, 65 of the work roll pair 64, 65, but also the intermediate rolls 68 and 69 of the intermediate roll pair 68, 69 have roller balls 62 ', 63'; 64 ', 65'; 68 ', 69' with contours curved over their entire length. The contours, which are each convex over one bale half and concave over the other bale half, are on the roller bales 62 ', 68', 64 'and 63', 69 ', 65' of the support rollers 62, 63, the intermediate rollers 68, 69 which are in contact with one another and the work rolls 64, 65 are coordinated with one another such that they complement one another in the central axial position of all the roll pairs of the six-roll stand 61 according to FIG. 2. The roll gap 66 for the rolled strip 67 therefore, despite its slightly S-shaped cross-sectional shape, has the same height over its entire length.

Durch relative Axialverschiebung der Walzen irgend eines Walzenpaares 62, 63 bzw. 64, 65 bzw. 68, 69 zueinander und/oder zu den Walzen der übrigen Walzensätze kann dann die Kontur des Walzspaltes 66 feinfühlig beeinflußt werden, und zwar durch das zusätzliche Vorhandensein des Zwischenwalzenpaares 68, 69 noch wesentlich feinfühliger als im Falle des Vierwalzen-Walzgerüstes 51 nach Fig. 1.By relative axial displacement of the rollers of any one pair of rollers 62, 63 or 64, 65 or 68, 69 to one another and / or to the rollers of the other roller sets, the contour of the nip 66 can then be delicately influenced by the additional presence of the intermediate roller pair 68, 69 even more sensitive than in the case of the four-roll stand 51 according to FIG. 1.

Auch im Falle des Sechswalzen-Walzgerüstes 61 nach Fig. 2 weist jeweils die Stützwalzen 62 und 63 des Stützwalzenpaares 62, 63 wie auch die Arbeitswalzen 64 und 65 des Arbeitswalzenpaares 64, 65 und schließlich die Zwischenwalzen 68 und 69 des Zwischenwalzenpaares 68 und 69 identische - flaschenähnliche Form des Walzballens auf und sind in den Walzenständern des Walzgerüstes relativ zueinander jeweils in um 180° gewendeter Einbaulage aufgenommen.Also in the case of the six-roll stand 61 according to FIG. 2, the support rolls 62 and 63 of the support roll pair 62, 63 as well as the work rolls 64 and 65 of the work roll pair 64, 65 and finally the intermediate rolls 68 and 69 of the intermediate roll pair 68 and 69 have identical - bottle-like shape of the roll bale and are accommodated in the roll stands of the roll stand relative to one another in each case in an installation position turned through 180 °.

Wie die Fig. 3 und 4 deutlich machen, lassen sich Sechswalzen-Walzgerüste 71 bzw. 81 hinsichtlich der Ausgestaltung ihres Walzensatzes aber auch gegenüber der Bauart nach Fig. 2 variieren.As shown in FIGS. 3 and 4, six-roll stands 71 and 81 can also be varied with respect to the design of their roll set compared to the design according to FIG. 2.

Während bei der Bauart nach Fig. 3 die Stützwalzen 72 und 73 des Stützwalzenpaares Walzballen 72' und 73' von über ihre ganze Länge zylindrischer oder aber konventionell balliger Gestalt benutzen, sind die Arbeitswalzen 74 und 75 des Arbeitswalzenpaares 74, 75 sowie die Zwischenwalzen 78 und 79 des Zwischenwalzenpaares 78, 79 mit Walzenballen 74', 75' bzw. 78', 79' ausgestattet, die eine über ihre gesamte Länge gekrümmte Kontur haben. In diesem Falle sind dann nur die Arbeitswalzen 74 und 75 des Arbeitswalzenpaares 74,75 und/oder die Zwischenwalzen 78 und 79 des Zwischenwalzenpaares 78, 79 axial verschiebbar im Walzgerüst 71 vorgesehen, während die Stützwalzen 72 und 73 des Stützwalzenpaares 72, 73 hierin axial unverschiebbar lagern.3, the support rollers 72 and 73 of the support roller pair use roller bales 72 'and 73' of cylindrical shape over their entire length or conventionally spherical in shape, the work rollers 74 and 75 of the work roller pair 74, 75 and the intermediate rollers 78 and 79 of the intermediate roller pair 78, 79 equipped with roller balls 74 ', 75' and 78 ', 79', which have a curved contour over their entire length. In this case, only the work rolls 74 and 75 of the work roll pair 74, 75 and / or the intermediate rolls 78 and 79 of the intermediate roll pair 78, 79 axially displaceably provided in the roll stand 71, while the support rollers 72 and 73 of the support roller pair 72, 73 are axially immovable therein.

Beim Sechswalzen-Walzgerüst 81 nach Fig. 4 haben die Arbeitswalzen 84 und 85 des Arbeitswalzenpaares 84, 85 Walzenballen 84' und 85' von über ihre ganze Länge zylindrischer oder konventionell balliger Gestalt. Andererseits sind hier jedoch die Walzenballen 82', 83' der Stützwalzen 82 und 83 sowie die Walzenballen 88' und 89' der Zwischenwalzen 88 und 89 mit über ihre gesamte Länge gekrümmter Kontur versehen.In the six-roll stand 81 according to FIG. 4, the work rolls 84 and 85 of the work roll pair 84, 85 roll bales 84 'and 85' have a cylindrical or conventionally spherical shape over their entire length. On the other hand, however, the roll balls 82 ', 83' of the support rolls 82 and 83 and the roll balls 88 'and 89' of the intermediate rolls 88 and 89 are provided with a contour that is curved over their entire length.

Die Beeinflussung des Walzspaltes 86 für das Walzband 87 erfolgt hier durch die axial verschiebbare Anordnung der Stützwalzen 82 und 83 und/oder der Zwischenwalzen 88 und 89, während die Arbeitswalzen 84 und 85 axial unverschieblich in ihren Einbaustücken lagern.The influencing of the roll gap 86 for the rolled strip 87 takes place here through the axially displaceable arrangement of the support rolls 82 and 83 and / or the intermediate rolls 88 and 89, while the work rolls 84 and 85 are axially immovable in their chocks.

Claims (5)

1. Walzgerüst mit zwei Arbeitswalzen, von denen sich gegebenenfalls jede unmittelbar oder über eine Zwischenwalze an einer Stützwalze abstützt, wobei die Walzen eines Walzenpaares gegensinnig axial verschiebbar sind und jede der verschiebbaren Walzen mindestens über einen Teil der Länge des Walzenballens eine von einer achsparallelen Geraden abweichende, gekrümmte Kontur aufweist, und wobei nach Patent 30 38 865 die gekrümmte Kontur sich über die ganze Länge des Walzenballens erstreckt sowie die Konturen der beiden Walzen des Walzenpaares sich ausschließlich in einer bestimmten Axialstellung der Walzen zueinander lückenlos ergänzen,
dadurch gekennzeichnet ,
daß die Walzen (52,53,54,55; 62,63,64,65,68,69;74,75,78, 79;82,83,88,89) mehrerer Walzenpaare (52.53 und 54,55; 62,63 und 64, 65 und 68, 69; 74, 75 und 78, 79; 82, 83 und 88, 89) des Walzensatzes an ihren Walzenballen (52', 53', 54', 55'; 62', 63', 64', 65', 68', 68'; 74', 75', 78', 79'; 82', 83', 88', 89') eine angepaßt gekrümmte Kontur aufweisen und gegeneinander axial verschiebbar sind.1. Roll stand with two work rolls, each of which may be supported directly or via an intermediate roll on a support roll, the rolls of a pair of rolls being axially displaceable in opposite directions and each of the displaceable rolls deviating from an axially parallel straight line over at least part of the length of the roll bale , has a curved contour, and wherein, according to patent 30 38 865, the curved contour extends over the entire length of the roll barrel and the contours of the two rolls of the roll pair complement each other exclusively in a specific axial position of the rolls,
characterized ,
that the rollers (52.53.54.55; 62.63.64.65.68.69; 74.75.78, 79; 82.83.88.89) of several pairs of rollers (52.53 and 54.55; 62 , 63 and 64, 65 and 68, 69; 74, 75 and 78, 79; 82, 83 and 88, 89) of the roller set on their roller balls (52 ', 53', 54 ', 55'; 62 ', 63' , 64 ', 65', 68 ', 68'; 74 ', 75', 78 ', 79'; 82 ', 83', 88 ', 89') have an adapted curved contour and are axially displaceable relative to one another. 2. Vierwalzen-Walzgerüst nach Anspruch 1, dadurch gekennzeichnet,
daß Stützwalzen (52, 53) und Arbeitswalzen (54,55) eine einander angepaßt gekrümmte Kontur an ihren Walzenballen (52', 53', 54', 55') haben und mindestens die Walzen eines dieser Walzenpaare (52, 53 und 54, 55) gegeneinander und/oder gegenüber den Walzen des anderen Walzenpaares (54,55 und 52,53) axial verschiebbar sind.2. Four-roll mill stand according to claim 1, characterized in that
that back-up rolls (52, 53) and work rolls (54, 55) have an adapted curved contour on their roll bales (52 ', 53', 54 ', 55') and at least one of the rolls these pairs of rollers (52, 53 and 54, 55) are axially displaceable relative to one another and / or relative to the rollers of the other pair of rollers (54, 55 and 52, 53). 3. Sechswalzen-Walzgerüst nach Anspruch 1, dadurch gekennzeichnet,
daß Stützwalzen (62, 63), Zwischenwalzen (68, 69) und Arbeitswalzen (64 und 65) eine einander angepaßt gekrümmte Kontur an ihren Walzenballen (62', 63' bzw. 68', 69' bzw. 64', 65') haben mindestens die Walzen zweier Walzenpaare gegeneinander und/oder gegenüber den Walzen des dritten Walzenpaares axial verschiebbar sind.3. Six-roll mill stand according to claim 1, characterized in that
that backup rolls (62, 63), intermediate rolls (68, 69) and work rolls (64 and 65) have an adapted curved contour on their roll bales (62 ', 63' or 68 ', 69' or 64 ', 65') have at least the rollers of two pairs of rollers against each other and / or against the rollers of the third pair of rollers are axially displaceable. 4. Sechswalzen-Walzgerüst nach Anspruch 1 und 3, dadurch gekennzeichnet ,
daß ausschließlich die Stützwalzen (72, 73) des Stützwalzenpaares (72, 73) zylindrische oder konventionell ballige Walzenballen (72' und 73') aufweisen.4. Six-roll mill stand according to claim 1 and 3, characterized in that
that only the support rollers (72, 73) of the support roller pair (72, 73) have cylindrical or conventionally spherical roller balls (72 'and 73'). 5. Sechswalzen-Walzgerüst nach Anspruch 1 und 3, dadurch gekennzeichnet ,
daß ausschließlich die Arbeitswalzen (84 und 85) des Arbeitswalzenpaares (84, 85) zylindrische oder konventionell ballige Walzenballen ((4', 85') aufweisen.5. Six-roll mill stand according to claim 1 and 3, characterized in
that only the work rolls (84 and 85) of the work roll pair (84, 85) have cylindrical or conventionally spherical roll balls ((4 ', 85').
EP83101219A 1982-04-10 1983-02-09 Roll stand with axially movable rolls Expired EP0091540B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83101219T ATE17663T1 (en) 1982-04-10 1983-02-09 ROLLER WITH AXIALLY SHIFTABLE ROLLERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3213496 1982-04-10
DE19823213496 DE3213496A1 (en) 1982-04-10 1982-04-10 ROLLING MILLS WITH AXIAL SLIDING ROLLS

Publications (2)

Publication Number Publication Date
EP0091540A1 true EP0091540A1 (en) 1983-10-19
EP0091540B1 EP0091540B1 (en) 1986-01-29

Family

ID=6160772

Family Applications (1)

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EP83101219A Expired EP0091540B1 (en) 1982-04-10 1983-02-09 Roll stand with axially movable rolls

Country Status (6)

Country Link
EP (1) EP0091540B1 (en)
JP (1) JPS58187207A (en)
AT (1) ATE17663T1 (en)
DE (2) DE3213496A1 (en)
SU (1) SU1355112A3 (en)
UA (1) UA5713A1 (en)

Cited By (12)

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EP0249801A1 (en) * 1986-06-16 1987-12-23 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill for producing a rolled strip
EP0254904A2 (en) * 1986-07-18 1988-02-03 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand, in particular for strip rolling
EP0258482A1 (en) * 1985-04-16 1988-03-09 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand with axially shiftable rolls
EP0263334A2 (en) * 1986-10-09 1988-04-13 Sms Schloemann-Siemag Aktiengesellschaft Roller arrangement for the non-deformable treatment of moving sheet material
DE3638331A1 (en) * 1986-11-10 1988-05-19 Schloemann Siemag Ag Rolling stand for rolling flat stock with a pair of axially displaceable work rolls
EP0294544A2 (en) * 1987-04-09 1988-12-14 Sms Schloemann-Siemag Aktiengesellschaft Rolling stand with axially adjustable cylinders
GB2222376A (en) * 1988-08-29 1990-03-07 Sendzimir Inc T Roll for cold rolling of metal strip
WO2005065853A2 (en) * 2003-12-23 2005-07-21 Sms Demag Ag Method and roll stand for multiply influencing profiles
WO2007144161A1 (en) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Rolling stand for producing rolled strip or sheet
US7316146B2 (en) 2001-09-12 2008-01-08 Voest-Alpine Industrieanlagenbau Gmbh & Co. Rolling stand for producing rolled strip
DE19811633B4 (en) * 1998-03-18 2008-01-31 Sms Demag Ag Roller arrangement for rolling strips
US9789521B2 (en) 2009-12-10 2017-10-17 Primetals Technologies Austria GmbH Rolling stand for producing rolled strip

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DE3331055C2 (en) * 1983-08-29 1994-11-03 Schloemann Siemag Ag Roll stand with axially movable work rolls
JPS61209705A (en) * 1985-03-14 1986-09-18 Ishikawajima Harima Heavy Ind Co Ltd Method and device for rolling
JPH0763736B2 (en) * 1985-07-18 1995-07-12 エスエムエス シユレ−マン・ジ−マグ アクチエン ゲゼルシヤフト Rolling machine with a plurality of rolls with curved rolling cylinders
JPH0673690B2 (en) * 1986-05-30 1994-09-21 川崎重工業株式会社 Rolling method
JPS6320106A (en) * 1986-07-11 1988-01-27 Kawasaki Heavy Ind Ltd Roll structure of rolling mill
JPS63238905A (en) * 1987-03-27 1988-10-05 Sumitomo Metal Ind Ltd Six-high mill for strip rolling
JPS63264204A (en) * 1987-04-23 1988-11-01 Mitsubishi Heavy Ind Ltd Rolling mill
WO1992020471A1 (en) * 1991-05-16 1992-11-26 Kawasaki Steel Corporation Six-stage rolling mill
US5622073A (en) * 1991-05-16 1997-04-22 Kawasaki Steel Corporation Six high rolling mill
DE19736767C2 (en) * 1997-08-23 2003-10-30 Sms Demag Ag Roll stand for rolling strips
DE19816602C1 (en) * 1998-04-15 1999-05-27 Schloemann Siemag Ag Roller frame for roll forming materials
DE102012212532B4 (en) 2012-07-18 2016-12-15 Achenbach Buschhütten GmbH & Co. KG Roll stand with contoured rolls

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Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0258482A1 (en) * 1985-04-16 1988-03-09 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand with axially shiftable rolls
EP0249801A1 (en) * 1986-06-16 1987-12-23 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill for producing a rolled strip
EP0254904A2 (en) * 1986-07-18 1988-02-03 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand, in particular for strip rolling
EP0254904A3 (en) * 1986-07-18 1989-04-19 Sms Schloemann-Siemag Aktiengesellschaft Rolling mill stand, in particular for strip rolling
US5021265A (en) * 1986-10-09 1991-06-04 Sms Schloemann-Siemag Aktiengesellschaft Roll arrangement for non-deforming treatment of moving web-type products
EP0263334A2 (en) * 1986-10-09 1988-04-13 Sms Schloemann-Siemag Aktiengesellschaft Roller arrangement for the non-deformable treatment of moving sheet material
DE3634367A1 (en) * 1986-10-09 1988-04-21 Schloemann Siemag Ag ROLLER ARRANGEMENT FOR DEFORM-FREE TREATMENT OF MOVING TAPE-SHAPED PRODUCTS
EP0263334A3 (en) * 1986-10-09 1989-10-25 Sms Schloemann-Siemag Aktiengesellschaft Roller arrangement for the non-deformable treatment of moving sheet material
DE3638331A1 (en) * 1986-11-10 1988-05-19 Schloemann Siemag Ag Rolling stand for rolling flat stock with a pair of axially displaceable work rolls
EP0294544A2 (en) * 1987-04-09 1988-12-14 Sms Schloemann-Siemag Aktiengesellschaft Rolling stand with axially adjustable cylinders
EP0294544A3 (en) * 1987-04-09 1989-04-26 Sms Schloemann-Siemag Aktiengesellschaft Rolling stand with axially adjustable cylinders
GB2222376B (en) * 1988-08-29 1993-04-07 Sendzimir Inc T Apparatus and method for cold rolling of metal strip
GB2222376A (en) * 1988-08-29 1990-03-07 Sendzimir Inc T Roll for cold rolling of metal strip
DE19811633B4 (en) * 1998-03-18 2008-01-31 Sms Demag Ag Roller arrangement for rolling strips
US7316146B2 (en) 2001-09-12 2008-01-08 Voest-Alpine Industrieanlagenbau Gmbh & Co. Rolling stand for producing rolled strip
WO2005065853A2 (en) * 2003-12-23 2005-07-21 Sms Demag Ag Method and roll stand for multiply influencing profiles
WO2005065853A3 (en) * 2003-12-23 2006-11-30 Sms Demag Ag Method and roll stand for multiply influencing profiles
US8210015B2 (en) 2003-12-23 2012-07-03 Sms Siemag Aktiengesellschaft Method and roll stand for multiply influencing profiles
WO2007144161A1 (en) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Rolling stand for producing rolled strip or sheet
WO2007144162A1 (en) * 2006-06-14 2007-12-21 Siemens Vai Metals Technologies Gmbh & Co Rolling stand for producing rolled strip or sheet
CN101511498B (en) * 2006-06-14 2011-06-15 西门子Vai金属技术两合公司 Rolling stand for producing rolled strip or sheet
US8413476B2 (en) 2006-06-14 2013-04-09 Siemens Vai Metals Technologies Gmbh Rolling mill stand for the production of rolled strip or sheet metal
US8881569B2 (en) 2006-06-14 2014-11-11 Siemens Vai Metals Technologies Gmbh Rolling mill stand for the production of rolled strip or sheet metal
US9789521B2 (en) 2009-12-10 2017-10-17 Primetals Technologies Austria GmbH Rolling stand for producing rolled strip

Also Published As

Publication number Publication date
DE3361941D1 (en) 1986-03-13
JPH0547282B2 (en) 1993-07-16
JPS58187207A (en) 1983-11-01
SU1355112A3 (en) 1987-11-23
ATE17663T1 (en) 1986-02-15
UA5713A1 (en) 1994-12-28
EP0091540B1 (en) 1986-01-29
DE3213496A1 (en) 1983-10-20

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