EP2424686B1 - Reversing stand having inlet and outlet guides - Google Patents
Reversing stand having inlet and outlet guides Download PDFInfo
- Publication number
- EP2424686B1 EP2424686B1 EP10718489.7A EP10718489A EP2424686B1 EP 2424686 B1 EP2424686 B1 EP 2424686B1 EP 10718489 A EP10718489 A EP 10718489A EP 2424686 B1 EP2424686 B1 EP 2424686B1
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- stand
- setting element
- reversing
- working roll
- roll
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- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 description 22
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
- B21B39/14—Guiding, positioning or aligning work
- B21B39/16—Guiding, positioning or aligning work immediately before entering or after leaving the pass
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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
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/08—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel
- B21B1/14—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling structural sections, i.e. work of special cross-section, e.g. angle steel in a non-continuous process, i.e. at least one reversing stand
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
- B21B1/30—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process
- B21B1/32—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a non-continuous process in reversing single stand mills, e.g. with intermediate storage reels for accumulating work
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- 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
- B21B31/203—Balancing rolls
Definitions
- the invention relates to a reversing stand, in particular Steckel reversing stand, the at least one upper and one lower support roller and a respective associated upper and lower work roll with scaffold inlet side and scaffolding outlet side associated with these upper guides.
- Roll bars are also installed in the lower work roll chocks. However, these are not in contact with lower guides, both top and bottom in such a reversing stand no contact between roll bar and work rolls. This is also not necessary, since due to the rather large minimum pre-strip thickness of about 40 mm, there is no danger that rolled material will enter the gap between the work rolls and the rolling beam.
- the pre-wall thicknesses are then rolled from approx. 40 mm to an end strip thickness of up to approx. 1 mm. This is done either in a multistage Prefabricated road in tandem arrangement or in one or two scaffolds in Steckel design.
- the pre-strip is rolled in reverse operation in several passes to finished product with a final strip thickness of up to approx. 1 mm.
- Such finishing stands usually arranged on the upper inlet and outlet guides upper scraper and the work rolls also associated lower scrapers, which are also provided both scaffold inlet side and scaffold outlet side, a permanent contact with the respectively associated upper or lower work roll.
- a rolling stand with a arranged on levers and a stripper associated scraper which can be adjusted by means of a connected to the upper portion of the rolling mill first actuator against the work roll and by means of a second actuator from the region of the roller, discloses the DE 10 31 251 B .
- a rolling mill is known in which a scraper arranged on the rolling stand is pivotally mounted by means of a first, attached to a frame arranged on the rolling frame actuator.
- the DE 102 10 576 A1 discloses a between two groups of rolls of a multi-row rolling mill, arranged by means of a first actuator pivotally mounted on the associated rolling stand scraper.
- a Steckel Reversiergerüst with a by means of an actuator pivotally arranged on the rolling stand scraper known.
- the invention has for its object to provide a solution that makes it possible to use a Reversiergerüst both as Vorgerüst as well as ready scaffold.
- the invention provides a reversing device that meets both the requirements for a "roughing operation” and for a “finishing stand operation”.
- the reversing stand according to the invention it is possible to press both the upper and lower scrapers to the respective associated work roll as well as to pivot away the upper and lower guides for roll change can.
- Steckel reversing stands can be equipped in such a way that they can roll out slabs with a thickness of approx. 250 mm in reversing operation to a finished product with a final strip thickness of approx. 1 mm in pre- and finishing stand mode.
- the upper guide is connected to an actuator via a coupling with the upper Stauerwalzenausbalanci für assupra and thus guided displaceably from the lower vertical guide and pulled out. This allows a simple mechanism push out the upper guides from the work area of the work rolls and thus release the upper work roll chocks.
- Clamps, ball heads and universal joints or simply movable screw connections are preferably used here as couplings.
- a further embodiment of the invention provides that an arranged third actuator for adjusting the upper guide connects to the frame or is attached to the Stauerwalzenausbalanci für assupra.
- This optimal mounting of the upper guides is selected depending on the available space, which is easily accessible and easy to assemble and disassemble especially in the course of possible maintenance or repair work.
- a further embodiment of the invention provides that an upper scraper with respect to the upper work roll is arranged, and this scraper via a second actuator against the work roll can be adjusted or pressed.
- the arranged second actuator ensures that the scraper always has uniform contact with the upper work roll over its entire length. The wear on the scraper tips is then preferably compensated by the continuous pressing of the scraper against the work roll of the second actuator.
- a further embodiment of the invention provides that a lower scraper with a fourth actuator is arranged so that the scraper is pressed by the actuator against the work roll or moved away from the work roll and thus can be swung out of the input or removal area of the work rolls ,
- the space for the work rolls is freely accessible without major assembly work on the arranged scrapers are necessary.
- Both scrapers are now out of the outer contours of the work roll chocks and release them for work roll change.
- the arrangement of the scrapers can be provided in a particular embodiment of the invention so that the pivoting away of the scraper up or / and down is effected. This allows a flexible adaptation to the available space.
- the embodiment of the invention described above is favored by the fact that the upper and lower scrapers are mounted gimbal. With this type of storage a swing away in any direction is possible.
- the upper and lower scrapers can be swung out of the working area of the work roll chocks.
- the actuators are designed as a lifting cylinder in the form of a hydraulic cylinder or pneumatic cylinder, or in the form of a driven spindle.
- the upper guide is rotatably arranged on the reversing stand on connecting elements, on each of which engages an end of a lifting cylinder with clamping head and one end of a second pneumatic cylinder.
- connecting elements on each of which engages an end of a lifting cylinder with clamping head and one end of a second pneumatic cylinder.
- both the upper work roll and the upper backup roll 2 and the lower work roll 3 and the lower backup roll 4 are in contact with each other.
- the upper scrapers 11 bear against the associated upper work roll 1 and the lower scrapers 13 against the associated lower work roll 3.
- Held the upper scraper 11 each in an upper guide 8, which is connected via a first actuator 6, for example a lifting cylinder with clamping head with an upper Stützwalzenausbalancitation 5.
- the upper guide 8 is designated in lower vertical guides 9 and upper vertical guides 10 in the total of 20 Stecket Reversiergerüst out.
- the upper scrapers 11 are rotatable, integrated in particular by means of cardan suspension in the upper guide 8 and hinged thereto relative to this pivotally.
- a second actuator 12 for example a pneumatic cylinder, which is arranged on the upper guide 8, the respective upper scraper 11 can be pressed against the upper work roll 1.
- the axis of rotation 16, about which the upper scraper 11 is pivotable, is arranged and positioned such that the tip of the upper scraper 11 over the entire length of the scraper 11 in contact with the upper work roll 1 can be brought.
- the on this longitudinal edge of the upper scraper 11 adjusting wear is compensated by the continuous adjustment by means of the second actuator 12.
- the first clamped-head actuator 6, pivotally mounted on the upper backup roll balance 5, is coupled thereto at the upper end of the upper guide 8 and is locked in the rolling operating position shown in the left-hand part of Fig. 1 so as to provide a rigid connection between the upper backup roll balance 5 and the upper guide 8 forms. All necessary or resulting changes in the height of the nip 15 are moved in the rolling operation by means of the locked upper guides 8 on the upper Stauerwalzenausbalanci réelle 5.
- the strokes of the first actuators 6 are adjusted positionally controlled according to the current work roll and back-up roll diameter and locked by means of the integrated with the lifting cylinder 6 clamping head.
- the lower scrapers 13 are also pivotable about axes or pivot points 17, preferably gimbal, arranged in the region of the associated lower work roll 3 on the reversing stand 20.
- a fourth actuator 14 not shown, preferably a rolling beam upstream lower scraper 13 is pressed to adapt the upper scraper 11 in an analogous manner to the lower work roll 3.
- each lower scraper 13 is associated with two fourth actuators 14, which are arranged symmetrically with respect to the lower scraper 13 and on the one hand rest against the lower scraper 13 and on the other hand against the reversing scaffold 20 or elements arranged thereon.
- each symmetrically arranged lifting cylinder 6 is associated with each upper guide 8 and is on either side of each upper guide 8, each associated with a lower vertical guide 9 and an upper vertical guide 10, which cooperate with corresponding counter-elements which are arranged on the reversing stand 20.
- the respective upper guide 8 On a connecting element 19 which is fastened to the lifting cylinder 6, the respective upper guide 8 is pivotable about an axis 21 with a third actuator 7, likewise pivotably mounted on the connecting element 19 about an axis 22, the other end of the actuator 7 is pivotally mounted about an axis 23 at a distance from the connecting part 19 portion of the respective upper guide 8.
- Each upper guide 8 is thus associated with a number of third actuators 7 analogous to the number of first actuators 6. In the exemplary embodiment, these are two hydraulic cylinders.
- Both the upper scrapers 11 and the lower scrapers 13 pivot outwardly in the direction away from the work rolls 1 and 2. After the lower scrapers 13 have reached their Häwalzen AC thoroughlysposition is Subsequently, the lower support roller 4 is lowered so far until the lower work roll 3 rests on the Häwalzenausfahrschienen 18 in the reversing stand 20. Upon further lowering of the lower support roller 4 then lose the lower work roll 3 and the lower support roller 4 contact each other, so that now the lower work roll 3 can be replaced.
- both the upper scrapers 11 and the lower scrapers 13 are so far outside the outer contours of the work roll chocks or work roll chocks that they are now released for the work roll change and are exposed.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Straightening Metal Sheet-Like Bodies (AREA)
Description
Die Erfindung betrifft ein Reversiergerüst, insbesondere Steckel-Reversiergerüst, das mindestens eine obere und eine untere Stützwalze und eine diesen jeweils zugeordnete obere und untere Arbeitswalze mit gerüsteinlaufseitig und gerüstauslaufseitig diesen zugeordneten oberen Führungen.The invention relates to a reversing stand, in particular Steckel reversing stand, the at least one upper and one lower support roller and a respective associated upper and lower work roll with scaffold inlet side and scaffolding outlet side associated with these upper guides.
Beim Walzen von Brammen in Vorgerüsten werden im Reversierbetrieb Brammen einer Dicke von ca. 250 mm zu Vorband mit einer Dicke von ca. 40 mm ausgewalzt. Derartige Reversiergerüste weisen vertikal geführte obere Ein- und Auslaufführungen auf, die im jeweiligen Gerüst angeordnet sind. Während des Walzbetriebes umgreifen diese gerüsteinlaufseitig angeordneten oberen Einlaufführungen und die gerüstauslaufseitig angeordneten oberen Auslaufführungen fest zwischen die oberen Arbeitswalzen-Baustücke des Reversiergerüstes eingebaute Walzbalken. Zur Durchführung eines Walzenwechsels werden die oberen Ein- und Auslaufführungen vertikal abgesetzt und geben die oberen Arbeitswalzen-Baustücke frei. Die Walzbalken werden dem aktuellen Arbeitswalzendurchmesser entsprechend mit einem definierten Abstand zur Walzenoberfläche in der Walzenwerkstatt montiert. In den unteren Arbeitswalzen-Einbaustücken sind ebenfalls Walzbalken eingebaut. Allerdings stehen diese nicht in Kontakt zu unteren Führungen, wobei sowohl oben als auch unten in einem solchen Reversiergerüst kein Kontakt zwischen Walzbalken und Arbeitswalzen besteht. Dies ist auch nicht erforderlich, da aufgrund der recht großen minimalen Vorbanddicke von ca. 40 mm keine Gefahr besteht, dass Walzgut in den Spalt zwischen Arbeitswalzen und Walzbalken gelangt.During the rolling of slabs in roughing stands, slabs with a thickness of approx. 250 mm are rolled out to pre-strip with a thickness of approx. 40 mm in reversing operation. Such Reversiergerüste have vertically guided upper inlet and outlet guides, which are arranged in the respective frame. During the rolling operation, these upper inlet guides arranged on the upstream side of the scaffold and the upper outlet guides arranged on the scaffold outlet firmly grip the rolling bars installed between the upper work roll components of the reversing stand. To perform a roll change, the upper infeed and outfeed guides are lowered vertically and release the upper work roll building pieces. The rolling beams are mounted according to the current work roll diameter with a defined distance to the roll surface in the roll workshop. Roll bars are also installed in the lower work roll chocks. However, these are not in contact with lower guides, both top and bottom in such a reversing stand no contact between roll bar and work rolls. This is also not necessary, since due to the rather large minimum pre-strip thickness of about 40 mm, there is no danger that rolled material will enter the gap between the work rolls and the rolling beam.
In Fertiggerüsten werden die Vorwanddicken dann von ca. 40 mm zu einer Endbanddicke von bis zu ca. 1 mm ausgewalzt. Dies erfolgt entweder in einer mehrgerüstigen Fertigstraße in Tandem-Anordnung oder in einem oder zwei Gerüsten in Steckel-Bauart. In Steckel-Reversiergerüsten wird das Vorband im Reversierbetrieb in mehreren Stichen zu Fertigprodukt mit einer Endbanddicke von bis zu ca. 1 mm ausgewalzt. In derartigen Fertiggerüsten haben die üblicherweise an den oberen Ein- und Auslaufführungen angeordneten oberen Abstreifer sowie den Arbeitswalzen ebenfalls zugeordnete untere Abstreifer, die jeweils ebenfalls sowohl gerüsteinlaufseitig als auch gerüstauslaufseitig vorgesehen sind, einen ständigen Kontakt zu der jeweils zugeordneten oberen oder unteren Arbeitswalze. Dies ist erforderlich, um die Bandoberfläche gegen Walzenkühlwasser abzuschirmen, aber auch, um an den Arbeitswalzen gegebenenfalls anhaftendes Walzgut von diesen abzustreifen. Diese oberen und unteren Abstreifer müssen bei einem Arbeitswalzenwechsel so weit von der jeweils zugeordneten Arbeitswalze entfernt werden, dass ein Arbeitswalzenwechsel möglich ist.In finishing stands, the pre-wall thicknesses are then rolled from approx. 40 mm to an end strip thickness of up to approx. 1 mm. This is done either in a multistage Prefabricated road in tandem arrangement or in one or two scaffolds in Steckel design. In Steckel reversing stands, the pre-strip is rolled in reverse operation in several passes to finished product with a final strip thickness of up to approx. 1 mm. In such finishing stands usually arranged on the upper inlet and outlet guides upper scraper and the work rolls also associated lower scrapers, which are also provided both scaffold inlet side and scaffold outlet side, a permanent contact with the respectively associated upper or lower work roll. This is necessary in order to shield the strip surface against roll cooling water, but also to scrape off rolling stock which optionally adheres to the work rolls. These upper and lower scrapers must be removed so far from the respective associated work roll in a work roll change that a work roll change is possible.
Aufgrund der vorstehend beschriebenen unterschiedlichen Arbeitsweise und Ausgestaltung von Vorgerüsten und Fertiggerüsten sind je nach Anwendungszweck unterschiedliche Gerüsttypen oder aber unterschiedlich ausgestattete Gerüsttypen einzusetzen, was eine entsprechend aufwändige Vorratshaltung für einen Produktionsbetrieb mit sich bringt. Es besteht daher das Bedürfnis, hier eine Vereinfachung zu erzielen.Due to the above-described different operation and design of roughing stands and finishing stands depending on the application different scaffolding types or differently equipped scaffolding types are used, which brings a correspondingly expensive stock for a production operation with it. There is therefore a need to achieve a simplification here.
Ein Walzgerüst mit einem an Hebeln angeordneten und einer Arbeitswalze zugeordneten Abstreifer, der mittels eines mit dem oberen Bereich des Walzgerüsts verbundenen ersten Stellglieds gegen die Arbeitswalze anstellbar und mittels eines zweiten Stellglieds aus dem Bereich der Walze ausschwenkbar ist, offenbart die
Der Erfindung liegt die Aufgabe zugrunde, eine Lösung zu schaffen, die es ermöglicht, ein Reversiergerüst sowohl als Vorgerüst als auch als Fertiggerüst einzusetzen.The invention has for its object to provide a solution that makes it possible to use a Reversiergerüst both as Vorgerüst as well as ready scaffold.
Diese Aufgabe wird erfindungsgemäß durch ein Reversiergerüst mit den Merkmalen des Anspruches 1 gelöst. Vorteilhafte Weiterbildungen und zweckmäßige Ausgestaltungen der Erfindung sind Gegenstand der abhängigen Unteransprüche.This object is achieved by a reversing stand with the features of claim 1. Advantageous developments and expedient embodiments of the invention are the subject of the dependent subclaims.
Durch die Erfindung wird ein Reversiergerät geschaffen, das sowohl die Erfordernisse für einen "Vorgerüstbetrieb" als auch für einen "Fertiggerüstbetrieb" erfüllt. Bei dem erfindungsgemäßen Reversiergerüst ist es möglich, sowohl die oberen und unteren Abstreifer an die jeweils zugeordnete Arbeitswalze anzudrücken als auch die oberen und unteren Führungen zum Walzenwechsel wegschwenken zu können. Insbesondere sind damit Steckel-Reversiergerüste derart ausrüstbar, dass sie im Vor- und Fertiggerüstbetrieb Brammen mit einer Dicke von ca. 250 mm im Reversierbetrieb zu einem Fertigprodukt mit einer Endbanddicke von ca. 1 mm auswalzen können.The invention provides a reversing device that meets both the requirements for a "roughing operation" and for a "finishing stand operation". In the reversing stand according to the invention, it is possible to press both the upper and lower scrapers to the respective associated work roll as well as to pivot away the upper and lower guides for roll change can. In particular, Steckel reversing stands can be equipped in such a way that they can roll out slabs with a thickness of approx. 250 mm in reversing operation to a finished product with a final strip thickness of approx. 1 mm in pre- and finishing stand mode.
Gemäß einem ersten Ausführungsbeispiel ist die obere Führung mit einem Stellglied über eine Kupplung mit der oberen Stützwalzenausbalancierung verbunden und damit aus der unteren Vertikalführung verschiebbar geführt und herausziehbar. Damit lassen sich über einen einfachen Mechanismus die oberen Führungen aus dem Arbeitsbereich der Arbeitswalzen herausschieben und geben damit die oberen Arbeitswalzeneinbaustücke frei.According to a first embodiment, the upper guide is connected to an actuator via a coupling with the upper Stützwalzenausbalancierung and thus guided displaceably from the lower vertical guide and pulled out. This allows a simple mechanism push out the upper guides from the work area of the work rolls and thus release the upper work roll chocks.
Bevorzugt werden als Kupplungen hierbei Klemmköpfe, Kugelköpfe und Kreuzgelenke oder einfach bewegliche Schraubenverbindungen eingesetzt.Clamps, ball heads and universal joints or simply movable screw connections are preferably used here as couplings.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass ein angeordnetes drittes Stellglied zum Verstellen der oberen Führung diese mit dem Gerüst verbindet oder an der Stützwalzenausbalancierung befestigt ist. Damit wird je nach verfügbarem Bauraum eine optimale Befestigung der oberen Führungen gewählt, welche besonders im Zuge von möglichen Wartungs- oder Reparaturarbeiten leicht zugänglich und einfach zu montieren bzw. demontieren ist.A further embodiment of the invention provides that an arranged third actuator for adjusting the upper guide connects to the frame or is attached to the Stützwalzenausbalancierung. This optimal mounting of the upper guides is selected depending on the available space, which is easily accessible and easy to assemble and disassemble especially in the course of possible maintenance or repair work.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass ein oberer Abstreifer gegenüber der oberen Arbeitswalze angeordnet ist, und dieser Abstreifer über ein zweites Stellglied gegen die Arbeitswalze anstellbar oder anpressbar ist. Über das angeordnete zweite Stellglied wird sichergestellt, dass der Abstreifer immer auf der gesamten Länge gleichmäßigen Kontakt zu der oberen Arbeitswalze hat. Der Verschleiß an den Abstreiferspitzen wird dann vorzugsweise durch das kontinuierliche Andrücken des Abstreifers an die Arbeitswalze des zweiten Stellgliedes ausgeglichen.A further embodiment of the invention provides that an upper scraper with respect to the upper work roll is arranged, and this scraper via a second actuator against the work roll can be adjusted or pressed. The arranged second actuator ensures that the scraper always has uniform contact with the upper work roll over its entire length. The wear on the scraper tips is then preferably compensated by the continuous pressing of the scraper against the work roll of the second actuator.
Eine weitere Ausgestaltung der Erfindung sieht vor, dass ein unterer Abstreifer mit einem vierten Stellglied so angeordnet ist, dass der Abstreifer durch das Stellglied gegen die Arbeitswalze angedrückt oder von der Arbeitswalze wegbewegt wird und somit aus dem Ein- bzw. Ausbaubereich der Arbeitswalzen weggeschwenkt werden kann. Damit ist der Bauraum für die Arbeitswalzen frei zugänglich, ohne dass größere Montagearbeiten an den angeordneten Abstreifern notwendig sind. Beide Abstreifer liegen jetzt außerhalb der Außenkonturen der Arbeitswalzeneinbaustücke und geben diese zum Arbeitswalzenwechsel frei.A further embodiment of the invention provides that a lower scraper with a fourth actuator is arranged so that the scraper is pressed by the actuator against the work roll or moved away from the work roll and thus can be swung out of the input or removal area of the work rolls , Thus, the space for the work rolls is freely accessible without major assembly work on the arranged scrapers are necessary. Both scrapers are now out of the outer contours of the work roll chocks and release them for work roll change.
Die Anordnung der Abstreifer kann in einer besonderen Ausgestaltung der Erfindung so vorgesehen sein, dass das Wegschwenken der Abstreifer nach oben oder/und nach unten bewirkbar ist. Damit ist eine flexible Anpassung an die vorhandenen Platzverhältnisse möglich.The arrangement of the scrapers can be provided in a particular embodiment of the invention so that the pivoting away of the scraper up or / and down is effected. This allows a flexible adaptation to the available space.
Weiterhin begünstigt wird die zuvor beschriebene Ausgestaltung der Erfindung dadurch, dass der obere und untere Abstreifer kardanisch gelagert ist. Mit dieser Art der Lagerung wird ein Wegschwenken in beliebiger Richtung ermöglicht.Furthermore, the embodiment of the invention described above is favored by the fact that the upper and lower scrapers are mounted gimbal. With this type of storage a swing away in any direction is possible.
So zeigt sich in einer weiteren Ausgestaltung der Erfindung, dass der obere und untere Abstreifer aus den Arbeitsbereich der Arbeitswalzeneinbaustücke herausschwenkbar sind.Thus, in a further embodiment of the invention, it can be seen that the upper and lower scrapers can be swung out of the working area of the work roll chocks.
In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die Stellglieder als Hubzylinder in Form eines Hydraulikzylinders oder Pneumatikzylinders, oder in Form einer angetriebenen Spindel ausgebildet sind. Damit ist die Möglichkeit gegeben, entsprechend der bauseitig vorhandenen Anschlüsse, wie zum Beispiel Hydraulikanschlüsse, Pneumatikanschlüsse oder Elektroanschlüsse, oder einer Kombination aus allen drei entsprechend den baulichen Gegebenheiten, ein optimales Stellglied zu wählen, welches den Bauraum der Arbeitswalzen möglichst wenig beeinträchtigt und einen optimalen Verstellmechanismus gewährleistet.In a further embodiment of the invention it is provided that the actuators are designed as a lifting cylinder in the form of a hydraulic cylinder or pneumatic cylinder, or in the form of a driven spindle. This makes it possible, according to the existing on-site connections, such as hydraulic connections, pneumatic connections or electrical connections, or a combination of all three according to the structural conditions, an optimal To choose actuator, which affects the space of the work rolls as little as possible and ensures optimum adjustment.
In einer weiteren Ausgestaltung der Erfindung ist vorgesehen, dass die obere Führung an dem Reversiergerüst drehbar an Verbindungselementen angeordnet ist, an welchen jeweils ein Ende eines Hubzylinders mit Klemmkopf und ein Ende eines zweiten Pneumatikzylinders angreift. Je nach Konstruktion der Anschlüsse des Verbindungselementes, zum Beispiel die Anordnung verschiedener Bohrungen, ist eine entsprechende Winkelanstellung der Hubzylinder zueinander möglich und somit an die Platzverhältnisse anpassbar.In a further embodiment of the invention, it is provided that the upper guide is rotatably arranged on the reversing stand on connecting elements, on each of which engages an end of a lifting cylinder with clamping head and one end of a second pneumatic cylinder. Depending on the design of the connections of the connecting element, for example, the arrangement of different holes, a corresponding angular adjustment of the lifting cylinder to each other is possible and thus adaptable to the space.
Die Erfindung ist nachstehend anhand der Zeichnung beispielhaft näher erläutert. Diese zeigt in
- Fig. 1
- in schematischer Schnittdarstellung einen Schnitt durch einen Teilbereich eines Steckel-Reversiergerüstes, wobei die linke Teildarstellung den Walzbetrieb und die rechte Teildarstellung eine Arbeitswalzenwechselposition darstellt,
- Fig. 2
- in schematischer Darstellung eine Teilansicht eines SteckelReversiergerüstes in Walzrichtung und in
- Fig. 3
- in schematischer Darstellung Aufsichten im linken Teilbild auf eine obere Führung und im rechten Teilbild auf eine untere Führung jeweils in ihrer Walzbetriebsstellung.
- Fig. 1
- in a schematic sectional view of a section through a portion of a Steckel reversing stand, the left partial representation of the rolling operation and the right partial representation represents a work roll change position,
- Fig. 2
- in a schematic representation of a partial view of a SteckelReversiergerüstes in the rolling direction and in
- Fig. 3
- in a schematic representation plan views in the left part of the image on an upper guide and in the right part of the image on a lower guide in each case in their rolling operation position.
Wie im linken Teilbild der 1 dargestellt, haben im Walzbetrieb sowohl die obere Arbeitswalze und die obere Stützwalze 2 als auch die untere Arbeitswalze 3 und die untere Stützwalze 4 Kontakt miteinander. In dieser im linken Teilbild dargestellten Walzstellung liegen die oberen Abstreifer 11 an der zugeordneten oberen Arbeitswalze 1 und die unteren Abstreifer 13 an der zugeordneten unteren Arbeitswalze 3 an. Gehalten sind die oberen Abstreifer 11 jeweils in einer oberen Führung 8 , die über ein erstes Stellglied 6 , zum Beispiel einen Hubzylinder mit Klemmkopf mit einer oberen Stützwalzenausbalancierung 5 verbunden ist. Die obere Führung 8 ist in unteren Vertikalführungen 9 und oberen Vertikalführungen 10 im insgesamt mit 20 bezeichneten Stecket-Reversiergerüst geführt. Die oberen Abstreifer 11 sind drehbar, insbesondere mittels kardanischer Aufhängung in die obere Führung 8 integriert und relativ zu dieser verschwenkbar an dieser angelenkt. Mittels eines zweiten Stellgliedes 12 , zum Beispiel einem Pneumatikzylinders, der an der oberen Führung 8 angeordnet ist, ist der jeweilige obere Abstreifer 11 an die obere Arbeitswalze 1 anpressbar. Die Drehachse 16 , um welche der obere Abstreifer 11 verschwenkbar ist, ist derart angeordnet und positioniert, dass die Spitze des oberen Abstreifers 11 über die gesamte Länge des Abstreifers 11 in Kontakt zur oberen Arbeitswalze 1 bringbar ist. Der sich an dieser Längskante des oberen Abstreifers 11 einstellende Verschleiß wird durch die kontinuierlich wirkende Anpassung mittels des zweiten Stellgliedes 12 ausgeglichen. Das verschwenkbar an der oberen Stützwalzenausbalancierung 5 angeordnete erste Stellglied 6 mit Klemmkopf ist am oberen Ende der oberen Führung 8 mit dieser gekoppelt und wird in der im linken Teilbild der 1 dargestellten Walzbetriebsposition derart verriegelt, dass er eine starre Verbindung zwischen der oberen Stützwalzenausbalancierung 5 und der oberen Führung 8 ausbildet. Alle notwendigen oder sich ergebenden Veränderungen der Höhe des Walzspaltes 15. werden im Walzbetrieb mittels der verriegelten oberen Führungen 8 über die obere Stützwalzenausbalancierung 5 gefahren. Die Hübe der ersten Stellglieder 6 werden entsprechend der aktuellen Arbeitswalzen- und Stützwalzen-Durchmesser positionsgeregelt eingestellt und mittels des integriert mit dem Hubzylinder 6 ausgebildeten Klemmkopfes verriegelt.As shown in the left-hand part of Fig. 1, in the rolling operation, both the upper work roll and the
Die unteren Abstreifer 13 sind ebenfalls um Achsen oder Drehpunkte 17 verschwenkbar, vorzugsweise kardanisch, im Bereich der zugeordneten unteren Arbeitswalze 3 am Reversiergerüst 20 angeordnet. Mit Hilfe eines nicht näher dargestellten vierten Stellgliedes 14 wird der vorzugsweise einem Walzbalken vorgelagerte untere Abstreifer 13 zur Anpassung der obere Abstreifer 11 in analoger Weise an die untere Arbeitswalze 3 angepresst.The
Wie insbesondere aus den 2 und 3 ersichtlich ist, sind einem jeden unteren Abstreifer 13 zwei vierte Stellglieder 14 zugeordnet, die symmetrisch zum unteren Abstreifer 13 angeordnet sind und einerseits sich am unteren Abstreifer 13 und andererseits am Reversiergerüst 20 oder daran angeordneten Elementen abstützen. Ebenso sind einer jeden oberen Führung 8 zwei symmetrisch angeordnete Hubzylinder 6 zugeordnet und ist beidseits einer jeden oberen Führung 8 dieser jeweils eine untere Vertikalführung 9 und eine obere Vertikalführung 10 zugeordnet, die mit entsprechenden Gegenelementen, die am Reversiergerüst 20 angeordnet sind, zusammenwirken.As can be seen in particular from FIGS. 2 and 3, each
An einem Verbindungselement 19, das an dem Hubzylinder 6 befestigt ist, steht die jeweilige obere Führung 8 um eine Achse 21 verschwenkbar mit einem, ebenfalls am Verbindungselement 19 um eine Achse 22 verschwenkbar befestigten dritten Stellglied 7 in Verbindung, wobei das andere Ende des Stellgliedes 7 um eine Achse 23 verschwenkbar an einem vom Verbindungsteil 19 beabstandeten Teilbereich der jeweiligen oberen Führung 8 befestigt ist. Jeder oberen Führung 8 ist somit analog zur Anzahl der ersten Stellglieder 6 eine Anzahl an dritten Stellgliedern 7 zugeordnet. Im Ausführungsbeispiel sind dies zwei Hydraulikzylinder.On a connecting
Um die unteren Abstreifer 13 und die oberen Abstreifer 11 nun in die in 1 im rechten Teilbild dargestellte Arbeitswalzenwechselstellung oder -position zu bewegen, die einen Wechsel der oberen und unteren Arbeitswalzen 1 , 3 ermöglicht, werden die gerüsteinlaufseitig und gerüstauslaufseitig angeordneten oberen Führungen 8 mittels der jeweiligen oberen Stützwalzenausbalancierung 5 zusammen mit der oberen Stützwalze 2 so weit hochgezogen, dass die obere Arbeitswalze 1 und die obere Stützwalze 2 den Kontakt zueinander verlieren, wie dies im rechten Teilbild der 1 dargestellt ist. Anschließend werden die Klemmköpfe der Hubzylinder 6 gelöst und die oberen Führungen 8 mittels der ersten Stellglieder 6 so weit angehoben, dass die oberen Führungen 8 die unteren Vertikalführungen 9 verlassen, so dass sie um die weiterhin in der oberen Vertikalführung 10 geführten Achsen 24 verschwenkt werden können. Diese Schwenkbewegung wird nun mittels der dritten Stellglieder 7 bewirkt, die dazu ihre Kolbenstange in den Kolben einfahren und ihre Länge verkürzen, so dass die oberen Führungen 8 wie im rechten Teilbild der 1 dargestellt, nach außen verschwenken und somit den Bereich der oberen Arbeitswalze 1 für eine Auswechslung der oberen Arbeitswalze 1 freigeben. Anschließend werden mittels der vierten Stellglieder 14 die unteren Abstreifer 13 in die im rechten Teilbild der 1 dargestellte Öffnungsposition aufgeschwenkt. Sowohl die oberen Abstreifer 11 als auch die unteren Abstreifer 13 schwenken nach außen in Richtung von den Arbeitswalzen 1 und 2 fort auf. Nachdem die unteren Abstreifer 13 ihre Arbeitswalzenwechselstellungsposition erreicht haben, wird anschließend die untere Stützwalze 4 so weit abgesenkt, bis die untere Arbeitswalze 3 auf den Arbeitswalzenausfahrschienen 18 im Reversiergerüst 20 aufliegt. Bei weiterer Absenkung der unteren Stützwalze 4 verlieren dann auch die untere Arbeitswalze 3 und die untere Stützwalze 4 den Kontakt zueinander, so dass nun auch die untere Arbeitswalze 3 ausgewechselt werden kann.In order to move the
In ihrer im rechten Teilbild der 1 dargestellten Arbeitswalzenwechselstellungsposition liegen sowohl die oberen Abstreifer 11 als auch die unteren Abstreifer 13 so weit außerhalb der Außenkonturen der Arbeitswalzenbaustücke oder ArbeitswalzenEinbaustücke, dass diese nun für den Arbeitswalzenwechsel freigegeben sind und freiliegen.1, both the
Claims (11)
- Reversing stand (20), particularly Steckel reversing stand (20), which comprises at least one upper and lower backing roll (2, 4) and upper and lower working rolls (1, 3) respectively associated therewith and which has at each of the stand inlet side and stand outlet side a respective upper guide (8), which is associated with the upper working roll (1) and which is connected with the upper region of the roll stand by way of a first setting element (6), and a rotatably mounted upper stripper (11) associated with the upper working roll (1) is arranged in a different orientation with respect to the upper guide (8) to be adjustable relative to the upper working roll (1) by way of a second setting element (12) arranged at the upper guide (8), and the upper guide (8) is mounted in lower and upper vertical guides (9, 10) to be so displaceable that it is withdrawable by the first setting element (6) from the lower vertical guide (9) and is pivotable outwardly in the direction of the associated upper working roll (1) by means of a third arranged setting element (7), and the reversing stand (20) further comprises at each of the stand inlet side and stand outlet side a respective lower stripper (13), which is associated with the lower working roll (3) and which is rotatably mounted by a fourth setting element (14) to be adjustable relative to the associated lower working roll (3).
- Reversing stand (20) according to claim 1, characterised in that the upper guide (8) is arranged to be connected with an upper backing roll balancing means (5) by the first setting element (6) via a coupling and is withdrawable from the lower vertical guide (9).
- Reversing stand according to claim 2, characterised in that the coupling is a clamping head, ball head, cross joint or a simple mechanical connection.
- Reversing stand (20) according to any one of the preceding claims, characterised in that the third setting element (7) is arranged at the stand or at the backing roll balancing means (5) and/or at the upper guide (8).
- Reversing stand (20) according to any one of the preceding claims, characterised in that the upper stripper (11) is arranged relative to the upper working roll (1) and the stripper (11) is adjustable and pressable against the working roll (1) by way of the second setting element (12).
- Reversing stand (20) according to any one of the preceding claims, characterised in that the lower stripper (13) with the fourth setting element (14) is so arranged that the setting element (14) presses the stripper against the working roll (3) or moves it away from the working roll and pivots it out of the installation or demounting region of the working rolls (1).
- Reversing stand (20) according to claim 6, characterised in that the pivotation away can be effected upwardly or downwardly.
- Reversing stand (20) according to any one of the preceding claims, characterised in that the upper and lower strippers (11, 13) have universal joint mounting.
- Reversing stand (20) according to any one of the preceding claims, characterised in that the upper and lower strippers (11, 13) are arranged to be pivotable out of the region of the working roll chocks.
- Reversing stand (20) according to any one of the preceding claims, characterised in that the setting elements (6, 7, 12, 14) are constructed as stroke cylinders in the form of a hydraulic cylinder or pneumatic cylinder or in the form of a driven spindle.
- Reversing stand (20) according to any one of the preceding claims, characterised in that the upper guide (8) is rotatably arranged at the connecting elements (19) at which in each instance an end of a stroke cylinder (6) engages by a clamping head and an end of a second hydraulic cylinder (7) engages.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009019333 | 2009-04-30 | ||
DE102009060461A DE102009060461A1 (en) | 2009-04-30 | 2009-12-24 | Reversing stand with inlet and outlet guides |
PCT/EP2010/002630 WO2010124863A1 (en) | 2009-04-30 | 2010-04-29 | Reversing stand having inlet and outlet guides |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2424686A1 EP2424686A1 (en) | 2012-03-07 |
EP2424686B1 true EP2424686B1 (en) | 2014-02-12 |
Family
ID=42813808
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10718489.7A Active EP2424686B1 (en) | 2009-04-30 | 2010-04-29 | Reversing stand having inlet and outlet guides |
Country Status (10)
Country | Link |
---|---|
US (1) | US20120042706A1 (en) |
EP (1) | EP2424686B1 (en) |
JP (1) | JP2012525259A (en) |
KR (1) | KR101355409B1 (en) |
CN (1) | CN102413956B (en) |
BR (1) | BRPI1009267A2 (en) |
DE (1) | DE102009060461A1 (en) |
RU (1) | RU2486020C1 (en) |
UA (1) | UA101112C2 (en) |
WO (1) | WO2010124863A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101455104B1 (en) * | 2012-11-28 | 2014-10-27 | 현대제철 주식회사 | Stripper apparatus for rolling mill |
CN110355212B (en) * | 2018-03-26 | 2020-10-27 | 宝山钢铁股份有限公司 | Automatic stop device, control system and control method for rolling mill |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1994691A (en) * | 1933-10-19 | 1935-03-19 | American Sheet & Tin Plate | Apparatus for cleaning metal working rolls |
DE1031251B (en) * | 1956-10-24 | 1958-06-04 | Siemag Siegener Masch Bau | Adjustable guide device for the rolling stock on rolling frames |
JPS5881509A (en) * | 1981-11-11 | 1983-05-16 | Hitachi Ltd | Guiding device in rolling mill |
SU1349816A1 (en) * | 1984-01-04 | 1987-11-07 | Днепропетровский Металлургический Институт Им.Л.И.Брежнева | Working stand for periodic rolling |
JPS61111606U (en) * | 1984-12-26 | 1986-07-15 | ||
US4906335A (en) * | 1987-06-08 | 1990-03-06 | Thermo Electron Web System, Inc. | Doctoring apparatus |
US4972780A (en) * | 1988-02-08 | 1990-11-27 | Baldwin Technology Corp. | Printing press blanket cleaner |
US5637249A (en) * | 1994-07-01 | 1997-06-10 | Ipsco Enterprises Inc. | Steckel mill coiler furnace incorporating heated pinch rolls |
DE19514475A1 (en) * | 1995-04-19 | 1996-10-24 | Schloemann Siemag Ag | Steckel rolling mill |
JP2001179323A (en) * | 1999-12-21 | 2001-07-03 | Hitachi Ltd | Method and device for preventing camber |
ITTO20000010A1 (en) * | 2000-01-07 | 2001-07-07 | Quercetti Alessandro & Co | CARDANIC JOINT FOR STATIC OR DYNAMIC BUILT-IN SYSTEMS. |
JP4135351B2 (en) * | 2001-10-12 | 2008-08-20 | 株式会社日立製作所 | Multi-row rolling mill, method of use thereof and rolling equipment |
CN2772659Y (en) * | 2004-11-23 | 2006-04-19 | 中色科技股份有限公司 | Self-adaption guider of thermal roller diameter |
-
2009
- 2009-12-24 DE DE102009060461A patent/DE102009060461A1/en not_active Withdrawn
-
2010
- 2010-04-29 EP EP10718489.7A patent/EP2424686B1/en active Active
- 2010-04-29 UA UAA201114125A patent/UA101112C2/en unknown
- 2010-04-29 WO PCT/EP2010/002630 patent/WO2010124863A1/en active Application Filing
- 2010-04-29 RU RU2011148645/02A patent/RU2486020C1/en active
- 2010-04-29 US US13/255,350 patent/US20120042706A1/en not_active Abandoned
- 2010-04-29 KR KR1020117023285A patent/KR101355409B1/en active IP Right Grant
- 2010-04-29 JP JP2012507640A patent/JP2012525259A/en active Pending
- 2010-04-29 CN CN201080019455.8A patent/CN102413956B/en not_active Expired - Fee Related
- 2010-04-29 BR BRPI1009267A patent/BRPI1009267A2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
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UA101112C2 (en) | 2013-02-25 |
CN102413956A (en) | 2012-04-11 |
WO2010124863A1 (en) | 2010-11-04 |
CN102413956B (en) | 2015-02-25 |
DE102009060461A1 (en) | 2010-11-04 |
KR101355409B1 (en) | 2014-01-27 |
EP2424686A1 (en) | 2012-03-07 |
RU2011148645A (en) | 2013-06-10 |
BRPI1009267A2 (en) | 2019-07-02 |
KR20110123795A (en) | 2011-11-15 |
JP2012525259A (en) | 2012-10-22 |
US20120042706A1 (en) | 2012-02-23 |
RU2486020C1 (en) | 2013-06-27 |
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