EP0027105B1 - Curved continuous casting plant - Google Patents

Curved continuous casting plant Download PDF

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Publication number
EP0027105B1
EP0027105B1 EP80890096A EP80890096A EP0027105B1 EP 0027105 B1 EP0027105 B1 EP 0027105B1 EP 80890096 A EP80890096 A EP 80890096A EP 80890096 A EP80890096 A EP 80890096A EP 0027105 B1 EP0027105 B1 EP 0027105B1
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EP
European Patent Office
Prior art keywords
bow
roller
bending
plant according
roller carriers
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Expired
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EP80890096A
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German (de)
French (fr)
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EP0027105A1 (en
Inventor
Aktiengesellschaft Voest-Alpine
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Voestalpine AG
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Voestalpine AG
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Publication of EP0027105A1 publication Critical patent/EP0027105A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1282—Vertical casting and curving the cast stock to the horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B22D11/128—Accessories for subsequent treating or working cast stock in situ for removing
    • B22D11/1285—Segment changing devices for supporting or guiding frames

Definitions

  • the invention relates to a continuous sheet caster with a strand bending device arranged below the mold and an adjoining, opposite support roller tracks, which extend from the vertical in one piece to the horizontal, circular arc guide, the bending device supporting two opposite, each bending and supporting rollers Has arch frame parts that are supported against each other and wherein the distance between the support roller tracks of the circular arc guide can be changed according to a strand cross-section to be set by parallel displacement of at least one of the support roller tracks.
  • a continuous caster of this type for example, in order to increase the strand thickness, the support roller tracks of the bending zone and the circular arc guide lying on the inside of the arc and adjoining one another are turned inwards, i.e. shifted towards the center of curvature.
  • the rollers arranged at the ends of these support roller tracks directed towards each other approach.
  • the invention aims to avoid these disadvantages and difficulties and has as its object to provide a continuous sheet caster of the type described above, in which an adjustment of the distance between the opposing roller tracks is possible in a simple manner such that the distance between the end rollers of adjacent roller tracks of the bending device and the circular arc guidance remains approximately the same.
  • one of the arch frame parts of the bending device has interchangeably fastened, interchangeable roller carriers adapted to different strand cross-sectional formats with their length.
  • An expedient embodiment is characterized in that the roller carriers are fastened to an inner part of the arch structure of the bending device.
  • the distance between the opposing bending or supporting rollers of the bending device can advantageously be changed by exchanging the roller carriers adapted to their thickness with different strand cross-sectional formats.
  • a casting thickness adjustment is particularly easy to carry out, since no adjustment manipulations have to be carried out on the bending device.
  • the roller spacing is set solely by exchanging the roller carriers. It is only necessary to loosen or attach the roller supports to the bending device. This also saves measurement work on the roller conveyor of the bending device.
  • the inner part of the arch structure is fastened to the outer part of the arch structure by means of bolts, along which one of the parts of the arch structure is slidably guided and on which this part is supported by washers against the second part of the arch structure.
  • the roller carriers are formed in one piece over the length of the bending device, as a result of which the roller carriers can be installed and removed particularly quickly.
  • roller carriers are expediently supported against the arch frame parts by means of interchangeable inserts.
  • roller carriers For easy handling of the roller carriers, they are connected to one another in a system with two or more supported bending or support rollers - with a longitudinal support member being provided at each support point - to form a unit which can be jointly installed and removed.
  • FIG. 1 is a view of a bending device from above in the direction of the longitudinal axis
  • FIG. 2 is a section along the line 11-11 of FIG. 1
  • FIG. 3 is a section along the line III-III, also of Fig. 1, represent.
  • FIG. 4 shows, in a representation analogous to FIG. 3, a system set to the largest possible casting thickness.
  • FIG. 5 illustrates a further embodiment of the system according to the invention in a representation analogous to FIG. 3.
  • a short, vertically directed guide section 1 for the strand is arranged, to which the Bending device 2 connects.
  • a circular arc guide 3 is provided below the bending device, in which the strand is guided from an almost vertical direction to an almost horizontal direction.
  • the bending device 2 which is suspended from a stationary support frame 4 by means of a nose-shaped hook 5 provided at the upper end of the bending device and which is supported at its lower end against this support frame 4 by means of a support 6, is composed of two box-shaped frame parts located opposite one another 7, 8 built.
  • guide bolts 14 are arranged on each side of the ends of the rollers 10, on which the inside of the arch frame part 8, which carries the bending or support rollers 10 forming the inside of the roller track 15, is slidably guided.
  • pull bolts 16 are provided on the side of the ends of the rollers 10, which are fastened with their heads 17 to the inner part 8 of the arch frame and which are supported with their other end 18 with interposed washers 19 on the outer part 7 of the arch frame and each with a cap nut 20 are secured.
  • the distance between the inner part of the bow frame 8 and the outer part 7 of the bow frame and thus the distance between the roller track 15 on the inside of the bow and the roller track 9 on the outside of the bow of the bending device 2 can be changed by rearranging the washers 19.
  • the bending or support rollers 10 of the roller conveyor 15 on the inside of the arch are not attached directly to the framework part as in the case of the arch frame outer part 7, but rather to roller supports 21, 22 extending in one piece over the length of the bending device 2, one crosshead 12 each with a lag screw 13 two bearing blocks 11 adjacent rollers 10 against the roller carrier 21, 22 spans.
  • the rollers 10 are formed in three parts, the rollers of the roller conveyor 15 being supported at each division point and at their ends on a roller carrier 21, 22.
  • the roller carriers 21 and 22 are fastened to the inner part of the arch frame by means of bolts 23 and nuts 24. All roller carriers 21, 22 are combined into a structural unit by means of bolts 25, on which spacer sleeves 26 are pushed.
  • the roller supports furthermore have approximately vertically directed support surfaces 27 and in each case a horizontal support surface 28, with which they are supported against transverse supports 29 arranged on the inner part of the arch structure 8 with the interposition of inserts 30 which are fastened to the roller supports 21, 22.
  • the circular arc guide 3 adjoining the bending device 2 has, in order to support the roller track 32 formed from support rollers 31 on the outside, longitudinal members 33 which are connected to longitudinal members 34 arranged on the inside of the arc, which support the support rollers 31 of the roller track 35 on the inside, by means of tie rods (not shown).
  • the direction of displacement 41 of the inner part of the arch structure relative to the outer part of the arch structure is also inclined at a certain angle 42 to the horizontal.
  • the roller carriers 21, 22, which have a length 44 at the narrowest set distance 36 are exchanged for roller carriers 21 ', 22' with a shortened length 45. This is done by loosening the nuts 24 of the bolts 23, lifting out the roller carriers 21, 22 and inserting the new roller carriers 21 ', 22' and then tightening the nuts 24 (cf. FIG. 4).
  • the area between the smallest 36 and the largest 37 distance of the roller tracks is expediently divided into several partial areas, with separate roller carriers 21, 22; 21 ', 22' etc. are provided.
  • the roller supports provided for this sub-area can be used for any other spacing of the roller tracks 9, 15, since an approximation or removal of the end rollers 38, 43 of the inner part of the arch frame 8 and the circular arch guide 3 is permissible to a certain extent.
  • the distance between the inner part of the arch frame 8 and the outer part 7 of the arch frame is adjusted by rearranging the washers 19.
  • the inner part of the arch framework is at the arch framework senteil fixed by means of two connecting bolts 46.
  • the roller carriers 21, 22 are also exchanged, although these not only have a different length 44 or 45, but also a different thickness 47, which determines the roller spacing, ie it differs also the distance of the approximately vertically directed support surfaces 27 of the roller carriers 21, 22 to the bearing surfaces 48 of the bearing blocks 11.
  • the conversion of the system from one strand thickness to another is particularly simple, since the inner part of the arch frame 8 is not compared to the outer part 7 of the arch frame needs to be moved. The number of manipulations to be carried out on the bending device 2 is thereby reduced.
  • the area between the smallest 36 and the largest 37 distance of the roller tracks 9 and 15 is also divided into partial areas, with roller carriers having a certain length and thickness being provided for each partial area.
  • the roller conveyor distance can be varied within each partial area by exchanging the inserts 30 provided between the approximately vertical support surfaces 27 and the cross members 29.
  • roller tracks 9, 32 on the outside of the arc are arranged rigidly, i.e. they are not adjusted when a roll gap corresponding to the strand thickness is set.
  • the roller tracks 15, 35 on the inside of the arc could also be immovable and the roller tracks on the outside of the arc could be set to a desired strand thickness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Continuous Casting (AREA)
  • Metal Rolling (AREA)

Description

Die Erfindung betrifft eine Bogenstranggiessanlage mit einer unterhalb der Kokille angeordneten Strangbiegeeinrichtung und einer daran anschliessenden, einander gegenüberliegende Stützrollenbahnen aufweisenden, sich etwa von der Vertikalen einstückig bis etwa in die Horizontale erstreckenden Strangkreisbogenführung, wobei die Biegeeinrichtung zwei einander gegenüberliegende, jeweils Biege- bzw. Stützrollen tragende Bogengerüstteile aufweist, die aneinander abgestützt sind und wobei der Abstand der Stützrollenbahnen der Kreisbogenführung entsprechend einem einzustellenden Strangquerschnitt durch Parallelverschieben mindestens einer der Stützrollenbahnen veränderbar ist.The invention relates to a continuous sheet caster with a strand bending device arranged below the mold and an adjoining, opposite support roller tracks, which extend from the vertical in one piece to the horizontal, circular arc guide, the bending device supporting two opposite, each bending and supporting rollers Has arch frame parts that are supported against each other and wherein the distance between the support roller tracks of the circular arc guide can be changed according to a strand cross-section to be set by parallel displacement of at least one of the support roller tracks.

Bei einer Stranggiessanlage dieser Art (vgl. DE-C Nr. 2021780) werden beispielsweise zwecks Vergrösserung der Strangdicke die an der Bogeninnenseite liegenden, aneinander anschliessenden Stützrollenbahnen der Biegezone und der Kreisbogenführung nach innen, d.h. zum Krümmungsmittelpunkt hin verschoben. Dabei nähern sich die an den zueinander gerichteten Enden dieser Stützrollenbahnen angeordneten Rollen. Um ein Aneinanderstossen dieser Rollen zu vermeiden, ist es erforderlich - bei auf kleinster Dicke eingestellten Rollenbahnen -, einen unverhältnismässig grossen Rollenabstand zwischen den benachbarten Endrollen der Biegeeinrichtung und der Kreisbogenführung vorzusehen. Will man dies wegen unzulässiger Ausbauchung der Strangschale nicht in Kauf nehmen, so ist man gezwungen, zusätzlich zum Parallelverschieben der beiden aneinander anschliessenden Rollenbahnen, eine dieser Rollenbahnen zusätzlich in Achsrichtung der Strangführungsbahn zu verstellen, so dass der Abstand der nebeneinander liegenden Endrollen dieser Rollenbahnen auch für unterschiedliche Strangdicken etwa gleich gross bleibt. Dies ist sehr umständlich durchzuführen und bedingt eigens für diesen Zweck vorgesehene Bauelemente, die die Anlage verteuern, das Umrüsten komplizieren und die eine zusätzliche Fehlerquelle der Stranggiessanlage darstellen. Insbesondere bei einem grossen Verstellbereich, wie er bei modernen Brammenstranggiessanlagen gefordert ist, kommen die oben genannten Schwierigkeiten besonders zum Tragen.In a continuous caster of this type (cf. DE-C No. 2021780), for example, in order to increase the strand thickness, the support roller tracks of the bending zone and the circular arc guide lying on the inside of the arc and adjoining one another are turned inwards, i.e. shifted towards the center of curvature. The rollers arranged at the ends of these support roller tracks directed towards each other approach. In order to prevent these rollers from bumping into each other, it is necessary - with roller conveyors set to the smallest thickness - to provide a disproportionately large roller spacing between the adjacent end rollers of the bending device and the circular arc guide. If you do not want to accept this due to an inadmissible bulging of the strand shell, you are forced to adjust one of these roller tracks in addition to the parallel displacement of the two adjoining roller tracks in the axial direction of the strand guide track, so that the distance between the end rolls of these roller tracks lying next to each other is also suitable for different strand thicknesses remains approximately the same size. This is very cumbersome to carry out and requires components that are specially provided for this purpose, which make the system more expensive, complicate the changeover and represent an additional source of error for the continuous casting system. In particular with a large adjustment range, as is required in modern continuous slab caster, the above-mentioned difficulties are particularly evident.

Die Erfindung bezweckt die Vermeidung dieser Nachteile und Schwierigkeiten und stellt sich die Aufgabe, eine Bogenstranggiessanlage der eingangs beschriebenen Art zu schaffen, bei der eine Verstellung des Abstandes der einander gegenüberliegenden Rollenbahnen in einfacher Weise derart möglich ist, dass der Abstand der Endrollen benachbarter Rollenbahnen der Biegeinrichtung und der Kreisbogenführung etwa gleich bleibt.The invention aims to avoid these disadvantages and difficulties and has as its object to provide a continuous sheet caster of the type described above, in which an adjustment of the distance between the opposing roller tracks is possible in a simple manner such that the distance between the end rollers of adjacent roller tracks of the bending device and the circular arc guidance remains approximately the same.

Diese Aufgabe wird erfindungsgemäss dadurch gelöst, dass einer der Bogengerüstteile der Biegeeinrichtung an ihm lösbar befestigte, austauschbare, auf unterschiedliche Strangquerschnittsformate mit ihrer Länge angepasste Rollenträger aufweist.This object is achieved according to the invention in that one of the arch frame parts of the bending device has interchangeably fastened, interchangeable roller carriers adapted to different strand cross-sectional formats with their length.

Eine zweckmässige Ausführungsform ist dadurch gekennzeichnet, dass die Rollenträger an einem Bogengerüstinnenteil der Biegeeinrichtung befestigt sind.An expedient embodiment is characterized in that the roller carriers are fastened to an inner part of the arch structure of the bending device.

Vorteilhaft ist der Abstand der einander gegenüberliegenden Biege- bzw. Stützrollen der Biegeeinrichtung durch Austausch der auf unterschiedliche Strangquerschnittsformate mit ihrer Dicke angepassten Rollenträger veränderbar. In diesem Fall ist eine G iessdickenverstell u ng besonders einfach durchzuführen, da an der Biegeeinrichtung keinerlei Verstellmanipulationen durchgeführt werden müssen. Die Einstellung des Rollenabstandes geschieht alleine durch Austausch der Rollenträger. Es ist lediglich erforderlich, die Rollenträger an der Biegeeinrichtung zu lösen bzw. zu befestigen. Dadurch erspart man sich auch Messarbeiten an den Rollenbahnen der Biegeeinrichtung.The distance between the opposing bending or supporting rollers of the bending device can advantageously be changed by exchanging the roller carriers adapted to their thickness with different strand cross-sectional formats. In this case, a casting thickness adjustment is particularly easy to carry out, since no adjustment manipulations have to be carried out on the bending device. The roller spacing is set solely by exchanging the roller carriers. It is only necessary to loosen or attach the roller supports to the bending device. This also saves measurement work on the roller conveyor of the bending device.

Es ist jedoch auch möglich und in manchen Fällen zweckmässig, den Abstand zwischen Bogengerüstinnenteil und einem Bogengerüstaussenteil der Biegeeinrichtung durch Parallelverschieben eines der Bogengerüstteile zu verändern.However, it is also possible and in some cases expedient to change the distance between the inner part of the arch framework and an outer part of the arch framework of the bending device by displacing one of the arch framework parts in parallel.

Dabei ist zweckmässig, dass der Bogengerüstinnenteil am Bogengerüstaussenteil mittels Bolzen befestigt ist, entlang denen einer der Bogengerüstteile verschiebbar geführt ist und an denen dieserTeil mittels Beilagscheiben gegen den zweiten Bogengerüstteil abgestützt ist.It is expedient that the inner part of the arch structure is fastened to the outer part of the arch structure by means of bolts, along which one of the parts of the arch structure is slidably guided and on which this part is supported by washers against the second part of the arch structure.

Nach einer bevorzugten Ausführungsform sind die Rollenträger über die Länge der Biegeeinrichtung einstückig ausgebildet, wodurch der Ein-und Ausbau der Rollenträger besonders schnell vor sich geht.According to a preferred embodiment, the roller carriers are formed in one piece over the length of the bending device, as a result of which the roller carriers can be installed and removed particularly quickly.

Zur genauen Einstellung und Justierung der Rollenträger sind zweckmässig die Rollenträger gegen die Bogengerüstteile mittels austauschbarer Beilagen abgestützt.For precise adjustment and adjustment of the roller carriers, the roller carriers are expediently supported against the arch frame parts by means of interchangeable inserts.

Zur einfachen Handhabung der Rollenträger sind diese bei einer Anlage mit zwei- oder mehrfach abgestützten Biege- bzw. Stützrollen - wobei an jeder Stützstelle ein Bogenlängsträger vorgesehen ist - miteinander zu einer gemeinsam ein- und ausbaubaren Baueinheit verbunden.For easy handling of the roller carriers, they are connected to one another in a system with two or more supported bending or support rollers - with a longitudinal support member being provided at each support point - to form a unit which can be jointly installed and removed.

Die Erfindung ist nachfolgend anhand der schematischen Zeichnung näher erläutert, wobei Fig. 1 eine Ansicht einer Biegeeinrichtung von oben in Richtung der Stranglängsachse, Fig. 2 einen Schnitt gemäss der Linie 11-11 der Fig. 1 und Fig. 3 einen Schnitt gemäss der Linie III-III, ebenfalls der Fig. 1, darstellen. Fig. 4 zeigt in zu Fig. 3 analoger Darstellung eine auf die grösstmögliche Giessdikke eingestellte Anlage. In Fig. 5 ist eine weitere Ausführungsform der erfindungsgemässen Anlage in zu Fig. 3 analoger Darstellung veranschaulicht.The invention is explained in more detail below with reference to the schematic drawing, in which FIG. 1 is a view of a bending device from above in the direction of the longitudinal axis, FIG. 2 is a section along the line 11-11 of FIG. 1 and FIG. 3 is a section along the line III-III, also of Fig. 1, represent. FIG. 4 shows, in a representation analogous to FIG. 3, a system set to the largest possible casting thickness. FIG. 5 illustrates a further embodiment of the system according to the invention in a representation analogous to FIG. 3.

Unterhalb einer nicht dargestellten Durchlaufkokille ist eine kurze, vertikal gerichtete Führungsstrecke 1 für den Strang angeordnet, an die die Biegeeinrichtung 2anschliesst. Unterhalb der Biegeeinrichtung ist eine Kreisbogenführung 3 vorgesehen, in der der Strang von nahezu vertikaler Richtung in eine nahezu horizontale Richtung geführt wird.Below a continuous mold, not shown, a short, vertically directed guide section 1 for the strand is arranged, to which the Bending device 2 connects. A circular arc guide 3 is provided below the bending device, in which the strand is guided from an almost vertical direction to an almost horizontal direction.

Die Biegeeinrichtung 2, die an einem ortsfesten Stützgerüst 4 mittels eines nasenförmigen, am oberen Ende der Biegeeinrichtung vorgesehenen Hakens 5 aufgehängt ist und die sich an ihrem unteren Ende gegen dieses Sütztgerüst 4 mittels einer Auflage 6 abstützt, ist aus zwei einander gegenüberliegenden, kastenförmig ausgebildeten Gerüstteilen 7, 8 aufgebaut. An dem an der Bogenaussenseite der Strangführung angeordneten Bogengerüstaussenteil 7 sind die die bogenaussenseitige Rollenbahn 9 bildenden Biege- bzw. Stützrollen 10 befestigt, wobei jeweils zwei Lagerböcke 11 nebeneinander liegender Rollen 10 von einem Querhaupt 12 mit einer Zugschraube 13 gegen den Bogengerüstaussenteil 7 gespannt sind. An dem Bogengerüstaussenteil 7 sind seitlich der Enden der Rollen 10 jeweils Führungsbolzen 14 angeordnet, an denen der Bogengerüstinnenteil 8, der die die bogeninnenseitige Rollenbahn 15 bildenden Biege- bzw. Stützrollen 10 trägt, verschiebbar geführt ist. Zur Fixierung des Bogengerüstinnenteiles 8 am Bogengerüstaussenteil 7 sind seitlich der Enden der Rollen 10 Zugbolzen 16 vorgesehen, die mit ihrem Kopf 17 am Bogengerüstinnenteil 8 befestigt sind und die mit ihrem anderem Ende 18 unter Zwischenlage austauschbarer Beilagscheiben 19 am Bogengerüstaussenteil 7 abgestützt und mittels jeweils einer Hutmutter 20 gesichert sind.The bending device 2, which is suspended from a stationary support frame 4 by means of a nose-shaped hook 5 provided at the upper end of the bending device and which is supported at its lower end against this support frame 4 by means of a support 6, is composed of two box-shaped frame parts located opposite one another 7, 8 built. The bending or support rollers 10, which form the outside of the roller track 9 and are attached to the outside of the bow guide of the strand guide, are attached, whereby two bearing blocks 11 of adjacent rollers 10 are tensioned by a crosshead 12 with a lag screw 13 against the outside of the bow frame 7. On the outside of the arch frame part 7, guide bolts 14 are arranged on each side of the ends of the rollers 10, on which the inside of the arch frame part 8, which carries the bending or support rollers 10 forming the inside of the roller track 15, is slidably guided. To fix the inner part of the arch frame 8 to the outer part 7 of the arch frame, pull bolts 16 are provided on the side of the ends of the rollers 10, which are fastened with their heads 17 to the inner part 8 of the arch frame and which are supported with their other end 18 with interposed washers 19 on the outer part 7 of the arch frame and each with a cap nut 20 are secured.

Der Abstand des Bogengerüstinnenteiles 8 vom Bogengerüstaussenteil 7 und damit der Abstand der bogeninnenseitigen Rollenbahn 15 von der bogenaussenseitigen Rollenbahn 9 der Biegeeinrichtung 2 lässt sich durch Umschichten der Beilagscheiben 19 verändern.The distance between the inner part of the bow frame 8 and the outer part 7 of the bow frame and thus the distance between the roller track 15 on the inside of the bow and the roller track 9 on the outside of the bow of the bending device 2 can be changed by rearranging the washers 19.

Die Biege- bzw. Stützrollen 10 der bogeninnenseitigen Rollenbahn 15 sind nicht wie beim Bogengerüstaussenteil 7 direkt am Gerüstteil, sondern an sich einstückig über die Länge der Biegeeinrichtung 2 erstreckenden Rollenträgern 21, 22 befestigt, wobei jeweils ein Querhaupt 12 mit einer Zugschraube 13 zwei Lagerböcke 11 benachbarter Rollen 10 gegen den Rollenträger 21, 22 spannt.The bending or support rollers 10 of the roller conveyor 15 on the inside of the arch are not attached directly to the framework part as in the case of the arch frame outer part 7, but rather to roller supports 21, 22 extending in one piece over the length of the bending device 2, one crosshead 12 each with a lag screw 13 two bearing blocks 11 adjacent rollers 10 against the roller carrier 21, 22 spans.

Wie aus Fig. 1 ersichtlich ist, sind die Rollen 10 dreigeteilt ausgebildet, wobei die Rollen der Rollenbahn 15 an jeder Teilungsstelle und an ihren Enden an jeweils einem Rollenträger 21,22 abgestützt sind. Die Rollenträger 21 und 22 sind mittels Schraubenbolzen 23 und Muttern 24 am Bogengerüstinnenteil befestigt. Sämtliche Rollenträger 21, 22 sind mittels Bolzen 25, auf denen Distanzhülsen 26 aufgeschoben sind, zu einer Baueinheit zusammengefasst. Die Rollenträger weisen weiters etwa vertikal gerichtete Stützflächen 27 sowie jeweils eine horizontale Stützfläche 28 auf, mit denen sie sich gegen am Bogengerüstinnenteil 8 angeordnete Querträger 29 unter Zwischenlage von Beilagen 30, die an den Rollenträgern 21,22 befestigt sind, abstützen.As can be seen from FIG. 1, the rollers 10 are formed in three parts, the rollers of the roller conveyor 15 being supported at each division point and at their ends on a roller carrier 21, 22. The roller carriers 21 and 22 are fastened to the inner part of the arch frame by means of bolts 23 and nuts 24. All roller carriers 21, 22 are combined into a structural unit by means of bolts 25, on which spacer sleeves 26 are pushed. The roller supports furthermore have approximately vertically directed support surfaces 27 and in each case a horizontal support surface 28, with which they are supported against transverse supports 29 arranged on the inner part of the arch structure 8 with the interposition of inserts 30 which are fastened to the roller supports 21, 22.

Die an die Biegeeinrichtung 2 anschliessende Kreisbogenführung 3 weist zur Stützung der bogenaussenseitigen, aus Stützrollen 31 gebildeten Rollenbahn 32, Längsträger 33 auf, die mit bogeninnenseitig angeordneten Längsträgern 34, die die Stützrollen 31 der bogeninnenseitigen Rollenbahn 35 tragen, mittels nicht dargestellter Zuganker verbunden sind.The circular arc guide 3 adjoining the bending device 2 has, in order to support the roller track 32 formed from support rollers 31 on the outside, longitudinal members 33 which are connected to longitudinal members 34 arranged on the inside of the arc, which support the support rollers 31 of the roller track 35 on the inside, by means of tie rods (not shown).

Bei einer Verstellung des Abstandes der beiden Rollenbahnen 32, 35 der Kreisbogenführung 3 vom kleinsten Rollenbahnenabstand 36 zum grössten auf dieser Anlage einstellbaren Abstand 37 gelangt die mit 38 bezeichnete, obere bogeninnenseitig liegende Endrolle der Kreisbogenführung von der in den Fig. 2 und 3 mittels voll ausgezogener Linien dargestellten Lage in die in Fig. 2 und 3 mit strichpunktierten Linien dargestellte Lage, die von der voll ausgezogenen Lage in Richtung einer zur Horizontalen etwa unter 45° geneigten Geraden 39 verschoben ist. Die Neigung für diese Verschieberichtung liegt deswegen etwa bei 45°, weil sich die Kreisbogenführung etwa von der Vertikalen bis nahezu in die Horizontale erstreckt und die Längsabweichung, die in den Fig. 2 und 3 mit 40 bezeichnet ist, d.h. die Abweichung in Längsrichtung der Rollenbahnen, an beiden Enden der Kreisbogenführung etwa gleich sein soll.When the distance between the two roller tracks 32, 35 of the circular arc guide 3 is adjusted from the smallest roller track distance 36 to the largest distance 37 that can be set on this system, the upper end roller of the circular guide, denoted by 38 on the inside of the arc, comes from the one in FIGS Lines shown in the position shown in FIGS. 2 and 3 with dash-dotted lines, which is shifted from the fully extended position in the direction of a line 39 inclined at about 45 ° to the horizontal. The inclination for this direction of displacement is approximately 45 ° because the circular arc guide extends approximately from the vertical to almost horizontal and the longitudinal deviation, which is denoted by 40 in FIGS. the deviation in the longitudinal direction of the roller tracks should be approximately the same at both ends of the circular arc guide.

Die Verschieberichtung 41 des Bogengerüstinnenteiles gegenüber dem Bogengerüstaussenteil ist ebenfalls unter einem bestimmten Winkel 42 zur Horizontalen geneigt. Wie aus Fig. 2 ersichtlich ist, würde bei einem Verschieben des Bogengerüstinnenteiles 8 der Biegeeinrichtung 2 auf den grösstmöglichen Abstand 37 die untere Endrolle 43 des Bogengerüstinnenteiles 8 mit der oberen Endrolle 38 der Kreisbogenführung 3 in Kontakt gelangen; die Verschiebung ist dann behindert. Um dies zu vermeiden, werden erfindungsgemäss die Rollenträger 21, 22, die bei engstem eingestelltem Abstand 36 eine Länge 44 aufweisen, gegen Rollenträger 21', 22' mit verkürzter Länge 45 ausgetauscht. Dies geschieht durch Lösen der Muttern 24 der Schraubenbolzen 23, Herausheben der Rollenträger 21, 22 und Einsetzen der neuen Rollenträger 21', 22' und anschliessendes Festziehen der Muttern 24 (vgl. Fig. 4).The direction of displacement 41 of the inner part of the arch structure relative to the outer part of the arch structure is also inclined at a certain angle 42 to the horizontal. As can be seen from FIG. 2, if the inner part 8 of the bending device 2 were moved to the greatest possible distance 37, the lower end roller 43 of the inner part 8 of the arch would come into contact with the upper end roller 38 of the circular arch guide 3; the shift is then hindered. In order to avoid this, according to the invention the roller carriers 21, 22, which have a length 44 at the narrowest set distance 36, are exchanged for roller carriers 21 ', 22' with a shortened length 45. This is done by loosening the nuts 24 of the bolts 23, lifting out the roller carriers 21, 22 and inserting the new roller carriers 21 ', 22' and then tightening the nuts 24 (cf. FIG. 4).

Der Bereich zwischen kleinstem 36 und grösstem 37 Abstand der Rollenbahnen istzweckmässig in mehrere Teilbereiche unterteilt, wobei für jeden Teilbereich eigene Rollenträger 21, 22; 21', 22' etc. vorgesehen sind. Innerhalb dieser Teilbereiche lassen sich die für diesen Teilbereich jeweils vorgesehenen Rollenträger für beliebige andere Abstände der Rollenbahnen 9, 15 verwenden, da eine Annäherung bzw. Entfernung der Endrollen 38, 43 des Bogengerüstinnenteiles 8 und der Kreisbogenführung 3 bis zu einem gewissen Mass zulässig ist.The area between the smallest 36 and the largest 37 distance of the roller tracks is expediently divided into several partial areas, with separate roller carriers 21, 22; 21 ', 22' etc. are provided. Within these sub-areas, the roller supports provided for this sub-area can be used for any other spacing of the roller tracks 9, 15, since an approximation or removal of the end rollers 38, 43 of the inner part of the arch frame 8 and the circular arch guide 3 is permissible to a certain extent.

Gleichzeitig mit dem Austausch der Rollenträger 21,22 wird die Verstellung des Abstandes des Bogengerüstinnenteiles 8 zum Bogengerüstaussenteil 7 durch Umschichten der Beilagscheiben 19 vorgenommen.Simultaneously with the replacement of the roller carriers 21, 22, the distance between the inner part of the arch frame 8 and the outer part 7 of the arch frame is adjusted by rearranging the washers 19.

Bei der in Fig. 5 dargestellten Ausführungsform ist der Bogengerüstinnenteil am Bogengerüstaussenteil mittels zweier Verbindungsbolzen 46 fixiert. Gemäss dieser Ausführungsform werden beim Umrüsten der Anlage von einer Giessdicke auf eine andere ebenfalls die Rollenträger 21, 22 ausgetauscht, wobei diese jedoch nicht nur eine unterschiedliche Länge 44 bzw. 45 aufweisen, sondern auch eine unterschiedliche, den Rollenabstand bestimmende Dicke 47, d.h. es differiert auch der Abstand der etwa vertikal gerichteten Stützflächen 27 der Rollenträger 21, 22 bis zu den Auflageflächen 48 der Lagerböcke 11. Bei dieser Ausführungsform gestaltet sich das Umrüsten der Anlage von einer Strangdicke zu einer anderen besonders einfach, da der Bogengerüstinnenteil 8 gegenüber dem Bogengerüstaussenteil 7 nicht verschoben zu werden braucht. Es wird dadurch die Anzahl der durchzuführenden Manipulationen an der Biegeeinrichtung 2 verringert. Bei dieser Ausführungsform ist der Bereich zwischen kleinstem 36 und grösstem 37 Abstand der Rollenbahnen 9 und 15 ebenfalls in Teilbereiche unterteilt, wobei für jeden Teilbereich Rollenträger mit bestimmter Länge und Dicke vorgesehen sind. Innerhalb jedes Teilbereiches lässt sich der Rollenbahnabstand durch Austausch der zwischen den etwa vertikalen Stützflächen 27 und den Querträgern 29 vorgesehenen Beilagen 30 variieren.In the embodiment shown in FIG. 5, the inner part of the arch framework is at the arch framework senteil fixed by means of two connecting bolts 46. According to this embodiment, when converting the system from one casting thickness to another, the roller carriers 21, 22 are also exchanged, although these not only have a different length 44 or 45, but also a different thickness 47, which determines the roller spacing, ie it differs also the distance of the approximately vertically directed support surfaces 27 of the roller carriers 21, 22 to the bearing surfaces 48 of the bearing blocks 11. In this embodiment, the conversion of the system from one strand thickness to another is particularly simple, since the inner part of the arch frame 8 is not compared to the outer part 7 of the arch frame needs to be moved. The number of manipulations to be carried out on the bending device 2 is thereby reduced. In this embodiment, the area between the smallest 36 and the largest 37 distance of the roller tracks 9 and 15 is also divided into partial areas, with roller carriers having a certain length and thickness being provided for each partial area. The roller conveyor distance can be varied within each partial area by exchanging the inserts 30 provided between the approximately vertical support surfaces 27 and the cross members 29.

Sowohl bei der in den Fig. bis 4 als auch bei der in Fig. 5 dargestellten Ausführungsform sind die bogenaussenseitigen Rollenbahnen 9, 32 starr angeordnet, d.h. sie werden bei Einstellen eines der Strangdicke entsprechenden Rollenspaltes nicht verstellt. Dies ist jedoch nur eine bevorzugte Ausführungsform. Es könnten auch die bogeninnenseitigen Rollenbahnen 15, 35 unverschiebbar und die bogenaussenseitigen Rollenbahnen auf eine gewünschte Strangdicke einstellbar sein.Both in the embodiment shown in FIGS. 4 to 4 and in the embodiment shown in FIG. 5, the roller tracks 9, 32 on the outside of the arc are arranged rigidly, i.e. they are not adjusted when a roll gap corresponding to the strand thickness is set. However, this is only a preferred embodiment. The roller tracks 15, 35 on the inside of the arc could also be immovable and the roller tracks on the outside of the arc could be set to a desired strand thickness.

Claims (8)

1. Bow-type continuous casting plant comprising a strand bending arrangement (2) arranged below the mould,'and a circular-arc guide (3) for the strand following thereupon, including oppositely arranged supporting roller ways (32, 35) and extending from approximately the vertical to approximately the horizontal in one piece, wherein the bending arrangement (2) includes two oppositely arranged bow-structure parts (7, 8), each carrying bending and supporting rollers (10, 43) and supported on each other, the distance (36,37) of the supporting roller ways (32, 35) of the circular-arc guide (3) being variable in accordance with the strand cross-section to be adjusted by the parallel displacement of at least one of the supporting roller ways (32, 35), characterized in that one of the bow-structure parts (8) of the bending arrangement (2) is provided with exchangeable roller carriers (21, 22; 21', 22') detachably fastened to it and adapted, with their lengths (44, 45), to different strand cross-sectional formats (36, 37).
2. Plant according to claim 1, characterized in that the roller carriers (21, 22; 21', 22') are fastened to a bow-structure inner part (8) of the bending arrangement (2).
3. Plant according to claim 1 or 2, characterized in that the distance (36, 37) of the oppositely arranged bending and supporting rollers (10) of the bending arrangement (2) is variable by exchanging the roller carriers (21, 22) which are adapted, with their thickness (47), to different strand cross-sectional formats (fig. 5).
4. Plant according to claim 1 or 2, characterized in that the distance between the bow-structure inner part (8) and a bow-structure outer part (7) of the bending arrangement (2) is variable by the parallel displacement of one of the bow-structure parts (7, 8).
5. Plant according to claim 4, characterized in that the bow-structure inner part (8) is fastened to the bow-structure outer part (7) by means of pins (14, 16), along which one of the bow-structure parts (7, 8) is displaceably guided and on which this part is supported relative to the second bow-structure part by means of shims (19).
6. Plant according to claims 1 to 5, characterized in that the roller carriers (21, 22; 21', 22') are designed in one piece over the length of the bending arrangement (2).
7. Plant according to claims 1 to 6, characterized in that the roller carriers (21, 22) are supported relative to the bow-structure parts (8) by means of exchangeable shims (30).
8. Plant according to claims 1 to 7 comprising bending and supporting rollers of the bending arrangement that are journalled on two or more points, characterized in that on each of the supporting points a roller carrier (21, 22; 21', 22') is provided, the adjacently arranged roller carriers being connected to a commonly removable and installable structural unit, preferably by means of pins (25) penetrating the roller carriers.
EP80890096A 1979-10-01 1980-09-03 Curved continuous casting plant Expired EP0027105B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT6396/79 1979-10-01
AT639679A AT362542B (en) 1979-10-01 1979-10-01 ARC CONTINUOUS CASTING MACHINE

Publications (2)

Publication Number Publication Date
EP0027105A1 EP0027105A1 (en) 1981-04-15
EP0027105B1 true EP0027105B1 (en) 1983-07-20

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EP80890096A Expired EP0027105B1 (en) 1979-10-01 1980-09-03 Curved continuous casting plant

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US (1) US4480680A (en)
EP (1) EP0027105B1 (en)
JP (1) JPS5677053A (en)
AT (1) AT362542B (en)
BR (1) BR8006267A (en)
CA (1) CA1149576A (en)
DE (1) DE3064283D1 (en)
ES (1) ES495513A0 (en)

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Publication number Priority date Publication date Assignee Title
DE19933635A1 (en) * 1999-07-17 2001-01-18 Sms Demag Ag Method and device for changing the format thickness of the cast strand of a continuous caster in a continuous casting operation
WO2002049789A1 (en) * 2000-12-21 2002-06-27 Sms Demag Aktiengesellschaft Casting roller with variable profile for casting metal strip in a casting roller plant
JP4745761B2 (en) * 2005-08-31 2011-08-10 キヤノン株式会社 Image forming apparatus and control method thereof

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH399659A (en) * 1963-01-08 1965-09-30 Concast Ag Continuous casting plant
DE1458201B2 (en) * 1963-07-03 1971-06-03 Schloemann AG, 4000 Dusseldorf DRIVE AND DIRECTIONAL ROLLER FOR A CONTINUOUS CASTING PLANT
AT301070B (en) * 1969-07-25 1972-08-25 Voest Ag Method for bending and straightening a cast strand and device for carrying out the method
DE2133144B2 (en) * 1971-07-03 1973-09-27 Concast Ag, Zuerich (Schweiz) Method and device for conveying and straightening a strand in a continuous casting plant
BE792377A (en) * 1971-12-16 1973-06-06 Uss Eng & Consult BENDING ROLLER DEVICE FOR CONTINUOUS CASTING MACHINE
DE2264330A1 (en) * 1972-12-30 1974-07-25 Schloemann Ag Withdrawal device for arcuate path continuous casting machines - having upper roll yoke mounted on guide columns
AT331439B (en) * 1973-07-24 1976-08-25 Voest Ag STRAND GUIDE FOR A CONTINUOUS CASTING PLANT
AT344344B (en) * 1974-05-28 1978-07-10 Mannesmann Ag SUPPORT AND GUIDANCE FRAMEWORK FOR AN ARC CASTING PLANT WITH EXCHANGEABLE SUPPORT SEGMENTS
AT330975B (en) * 1974-07-25 1976-07-26 Voest Ag CONTINUOUS CASTING PLANT WITH A TRIMMING OR ROLE GUIDE HAVING GUIDE ROLLERS THAT CAN BE CLOSED INTO A STEEL SUPPORTING FRAME
AT335649B (en) * 1975-03-25 1977-03-25 Voest Ag STRAND GUIDE ON A CONTINUOUS CASTING PLANT
AT340082B (en) * 1975-10-29 1977-11-25 Voest Ag STRAND GUIDE ON A CONTINUOUS CASTING PLANT
AT342802B (en) * 1976-02-11 1978-04-25 Abita Ag DEVICE FOR GUIDING AND TRIMMING THE CAST STRAND IN CONTINUOUS CASTING PLANTS
DE2740221C2 (en) * 1977-09-07 1984-09-06 Concast AG, Zürich Support guide in a continuous caster
CH627385A5 (en) * 1978-04-19 1982-01-15 Schloemann Siemag Ag CONTINUOUS CASTING SYSTEM WITH STRUCTURE SUBSECTED IN SEGMENTS.

Also Published As

Publication number Publication date
ES8105173A1 (en) 1981-06-01
ATA639679A (en) 1980-10-15
JPS5677053A (en) 1981-06-25
EP0027105A1 (en) 1981-04-15
AT362542B (en) 1981-05-25
DE3064283D1 (en) 1983-08-25
CA1149576A (en) 1983-07-12
ES495513A0 (en) 1981-06-01
US4480680A (en) 1984-11-06
BR8006267A (en) 1981-04-07

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