EP2052090B1 - Coiling furnace - Google Patents

Coiling furnace Download PDF

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Publication number
EP2052090B1
EP2052090B1 EP07786218.3A EP07786218A EP2052090B1 EP 2052090 B1 EP2052090 B1 EP 2052090B1 EP 07786218 A EP07786218 A EP 07786218A EP 2052090 B1 EP2052090 B1 EP 2052090B1
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EP
European Patent Office
Prior art keywords
furnace
coiling
roller
flap
constructed
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EP07786218.3A
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German (de)
French (fr)
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EP2052090A1 (en
Inventor
Karl Hoen
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SMS Siemag AG
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SMS Siemag AG
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C47/00—Winding-up, coiling or winding-off metal wire, metal band or other flexible metal material characterised by features relevant to metal processing only
    • B21C47/26—Special arrangements with regard to simultaneous or subsequent treatment of the material
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/52—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length
    • C21D9/54—Furnaces for treating strips or wire
    • C21D9/68—Furnace coilers; Hot coilers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B17/00—Furnaces of a kind not covered by any preceding group
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B45/00—Devices for surface or other treatment of work, specially combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B45/004—Heating the product

Definitions

  • the invention relates to a winding furnace, in particular a winding furnace for Steckel, in which a hot-rolled strip in the forward and Hertransport each reversing on a furnace drum in the furnace inside and is optionally heated, comprising on the movable furnace flap of the winding furnace mounted guide tables for threading and / or leading the rolled strip, the furnace flap and the winding furnace are separate structure, the furnace flap is located on a located below the winding furnace part of a roller shutter frame and the furnace flap is divided into at least two mutually hinged elements and both flap elements connected via a flap bearing and pivotally formed are.
  • the tilting table is provided with a pressure roller, which lies on the pivoting of the rocking table against the Entzu concerningsrolle and together with this forms a stripper, which when unwinding the band-shaped rolling stock from the reel drum pulls and the scraper is slidably mounted.
  • DE 685 904 describes a reversing mill for rolling blocks into strips and strips with coiler ovens arranged on both sides of the mill and height-adjustable drift rolls and adjustable guides for the rolling stock arranged on both sides of the mill, with which the rolled product reciprocates to a certain extent rolled and, as soon as it has been rewound, is in the coiler ovens up and down coiled. It is triggered by the starting and reversing switch for the drive motor of the work rolls both a control device for hiring the drive rollers on the inlet and outlet side and a change of the guide rails when changing the direction of the work rolls.
  • a disadvantage of this device is that the tape, while stored in the winding furnace, is in contact with the rollers which are arranged in the wall of the winding furnace, which are significantly colder than the belt itself. This has the consequence that the end of the tape cools unacceptably and only, as in the documents listed above, with even more sophisticated facilities, the supercooled tape length is minimized. In addition, the insulation of the winding furnace is weakened by the incorporation of the rollers in the furnace wall and increases its energy consumption.
  • DE 32 24 621 A1 describes a coiler oven with a horizontal reel, the mandrel is seconded within a heat shield, with a reel mandrel enclosing, pressure rollers for an up or unwinding band having tape guide comprising two of opposite sides against the reel mandrel pushable, cylindrical guide segments of where the upstream in the Aufwickelsinn guide segment connected to a pivotally mounted below the reel mandrel band bridge for the supply and removal of the belt.
  • the reel furnace is characterized in that the two guide segments are attached to arranged outside the heat shield swing, which are transverse to the pressing direction of the guide segments and parallel to the coiler mandrel pivot axes, that in the Aufwickelsinn downstream guide segment forms the belt scraper with its trailing edge and that with a equipped separate pivot drive belt bridge preferably consists of a roller table, the reel mandrel facing end roller serves as a pressure roller for the band.
  • a roller table preferably consists of a roller table
  • the reel mandrel facing end roller serves as a pressure roller for the band.
  • the invention is therefore based on the object to simplify the known, mechanically complex, constructions and to avoid the disadvantages mentioned above.
  • the preamble of claim 1 is known from WO 03/048 397 A1 known.
  • the oven roller can be placed anywhere on the winding.
  • the oven roll is mounted like the oven drum in the winding oven.
  • the furnace roll is built up, just like the furnace drum, with a hot jacket mounted on a cooled axle. This has the advantage that with the usual heat-resistant material of the roll shell temperatures of over 950 ° C can be achieved.
  • placing the oven roll on the winding leads to a negligible cooling at the Aufsetzstelle. For thin tape thicknesses, e.g. smaller than 6 mm, even a heating of the Aufsetzstelle.
  • the pegs of the oven roll are stored in two independent levers outside the oven.
  • the levers are supported in bearing blocks which are externally mounted to the construction of the furnace.
  • a hydraulic cylinder or other type of drive is attached to one or both levers, which is also supported on the construction of the furnace.
  • the outwardly directed oven roll shields are attached to the levers, which close the openings in the furnace wall, which are required to pivot around the furnace roll.
  • the size of the recesses is determined by the swivel range of the furnace roll.
  • the size of the shields is selected so that even in the uppermost as well as in the lowest position of the furnace roll, the recesses are closed.
  • the drive is for example via an electric motor which is connected via a propeller shaft with the furnace roller.
  • a propeller shaft with the furnace roller.
  • other drives are conceivable, such as e.g. a fluid motor, which is mounted directly on the furnace roll.
  • a medium is supplied to the fluid motor, e.g. Water, air, oil or the like.
  • the winding furnace is completely closed with appropriate execution of the furnace flaps.
  • the drum can be rotated during the time in which the winding stored in the winding furnace, back and forth.
  • the angular range in which the drum can be rotated depends on the Aufsetztician the oven roll and how far the end of the tape is wound up. By turning the drum back and forth, the oven roll also rotates to ensure that it remains evenly heated and does not cool down the place where it is placed.
  • the furnace flap In order to convey the tape safely out of the winding furnace, the furnace flap, with which the winding furnace is closed, carried out so that the cover plate of the furnace flap is placed to guide the end of the tape during removal already in the winding furnace.
  • a scraper is not required in the device according to the invention.
  • the end of the tape will not stick to the roll because the end of the tape does not rest on / on the roll or is pressed against the roll by the oven roll or rolled over by it.
  • FIG. 1 a winding furnace 1 is shown in cross section, in which a rolled strip 2 is wound on a furnace drum 3 in the furnace interior 4.
  • the rolled strip 2 via a furnace flap 5 are mounted on the control tables 6, directed to the furnace drum 3.
  • the oven door 5 is attached to a roller table frame 7 and consists of a flap element 8 and a flap element 9, which are connected to each other via a flap bearing 10 and pivotally formed.
  • the rolled strip 2 is pressed by a furnace roller 11, consisting of roller shell 12 and roller axis 13, to the already wound on the furnace drum 3 turns.
  • the pressing is done by lever 14, the are mounted outside the winding furnace 1.
  • the levers 14 are coupled, for example, with hydraulic cylinders 15.
  • the roller axis 13 is in recesses 16, which are located in the housing of the winding furnace 1, moves.
  • the recesses are covered by attached to the levers 14, outer heat shields (not shown).
  • FIG. 2 shows the winding furnace 2 with closed oven door 5.
  • the rolled strip 2 is located completely in the oven interior 4.
  • the oven drum 3 is rotated so that the ends of the rolled strip always moves between the furnace roller 11 and the oven door 5.
  • the furnace drum 3 is rotated so that the rolled strip 2 moves towards the oven door 5, especially in the direction of flap element 8.
  • the oven door 5 is not completely opened, as moved down, but a cover plate 17 by means of an adjusting element 18 is rotated about a plate bearing 19. This creates a guide for the rolled strip 2 and an opening of the winding furnace through which the rolled strip passes on the roller table.
  • FIG. 4 is, seen in the rolling direction, the drive of the furnace role darg Hor.
  • the drive is effected in a first embodiment by means of an electric motor which is coupled by a drive shaft with the roller axis.
  • FIG. 5 A second version is in FIG. 5 shown.
  • the drive of the roller axis by means of a connected to the roller axis fluid motor takes place.
  • the drive is flanged directly, a compact design is achieved with low weight.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Metal Rolling (AREA)

Abstract

The invention relates to a coiling furnace (1), especially a coiling furnace (1) for Steckel rolling mills, wherein a hot-rolled strip (2) is coiled and uncoiled and optionally heated on a furnace drum (3) in the furnace interior (4) in a reversing manner. Said coiling furnace comprises guide tables (6) mounted on the mobile furnace door (5) of the coiling furnace (1) for inserting and/or guiding the heat-rolled strip (2), the furnace door (5) and the coiling furnace (1) being separate units. The furnace door (5) is arranged on a part of a roller rack (6) below the coiling furnace (1) and the furnace door (5) is subdivided into at least two elements (8, 9) that swing in relation to one another, both door elements (8, 9) being interconnected via a door bearing (10) and being configured to be pivoted. The invention is characterized in that the coiling furnace (1), in its interior (4), is configured with only one furnace roller (11) to allow complete insertion of the strip into the coiling furnace without the risk of the strip coming undone. For withdrawal of the strip a cover plate is placed on the door element and there is no need for a stripper.

Description

Die Erfindung betrifft einen Wickelofen, insbesondere einen Wickelofen für Steckelwalzwerke, in denen ein warmgewalztes Band im Hin- und Hertransport jeweils reversierend auf einer Ofentrommel im Ofeninneren auf- und abwickelt und gegebenenfalls erwärmt wird, umfassend auf der beweglichen Ofenklappe des Wickelofens montierte Leittische zum Einfädeln und / oder Führen des Walzbandes, wobei die Ofenklappe und der Wickelofen separate Baukörper sind, die Ofenklappe auf einem unterhalb des Wickelofens befindlichen Teil eines Rollgangrahmens angeordnet ist und die Ofenklappe in wenigstens zwei zueinander klappbare Elemente aufgeteilt ist und beide Klappenelemente über eine Klappenlagerung verbunden und schwenkbar ausgebildet sind.The invention relates to a winding furnace, in particular a winding furnace for Steckel, in which a hot-rolled strip in the forward and Hertransport each reversing on a furnace drum in the furnace inside and is optionally heated, comprising on the movable furnace flap of the winding furnace mounted guide tables for threading and / or leading the rolled strip, the furnace flap and the winding furnace are separate structure, the furnace flap is located on a located below the winding furnace part of a roller shutter frame and the furnace flap is divided into at least two mutually hinged elements and both flap elements connected via a flap bearing and pivotally formed are.

Aus der DE 743 011 ist ein Steckel-Haspelofen mit schwenkbarem Wipptisch, Entzunderungsrolle und Abstreifer bekannt, wobei der Wipptisch mit einer Druckrolle versehen ist, die sich beim Hochschwenken des Wipptisches gegen die Entzunderungsrolle legt und mit dieser zusammen einen Streifenzieher bildet, der beim Abwickeln das bandförmige Walzgut von der Haspeltrommel zieht und der Abstreifer verschiebbar gelagert ist.From the DE 743 011 is a Steckel coiler oven with tiltable table, Entzunderungsrolle and scraper known, the tilting table is provided with a pressure roller, which lies on the pivoting of the rocking table against the Entzunderungsrolle and together with this forms a stripper, which when unwinding the band-shaped rolling stock from the reel drum pulls and the scraper is slidably mounted.

DE 685 904 beschreibt ein Umkehrwalzwerk zum Auswalzen von Blöcken zu Streifen und Bändern mit zu beiden Seiten des Walzwerks angeordneten Haspelöfen und in der Höhe verstellbaren Treibwalzen sowie zu beiden Seiten des Walzwerks angeordneten einstellbaren Führungen für das Walzgut, mit dem das Walzgut bis zu einer gewissen Stärke hin und her gewalzt und, sobald es haspelfähig geworden ist, in den Haspelöfen auf und ab gehaspelt wird. Dabei wird durch den Anlass- und Umkehrschalter für den Antriebsmotor der Arbeitswalzen sowohl je eine Steuervorrichtung für das Anstellen der Treibwalzen an der Ein- und Austrittsseite als auch eine Umstellung der Führungsleisten beim Richtungswechsel der Arbeitswalzen ausgelöst wird. DE 685 904 describes a reversing mill for rolling blocks into strips and strips with coiler ovens arranged on both sides of the mill and height-adjustable drift rolls and adjustable guides for the rolling stock arranged on both sides of the mill, with which the rolled product reciprocates to a certain extent rolled and, as soon as it has been rewound, is in the coiler ovens up and down coiled. It is triggered by the starting and reversing switch for the drive motor of the work rolls both a control device for hiring the drive rollers on the inlet and outlet side and a change of the guide rails when changing the direction of the work rolls.

Bei diesen bekannten Vorrichtungen versuchte man das Aufspringen des Wickels durch so genannte Führungsbalken, die kreisförmig um den Wickel angeordnet waren, zu vermeiden. Da die Führungsbalken fix an einer Position angebracht waren, war ihre Wirksamkeit nur bei einem bestimmten Wickelgewicht gegeben. Damit begrenzten sie das Wickelgewicht nach oben und gleichzeitig nach unten, was eine flexible Produktion mit der jeweiligen Anlage beeinträchtigte. Ferner sahen sie einen Abstreifer vor, um das Bandende vom Wickel zu lösen und aus dem Wickelofen zu führen. Da der aufwendig gestaltete Abstreifer zwischen Ofen und Walzgerüst angebracht werden musste, schränkte er merklich die Sicht auf das Band ein.In these known devices it was attempted to avoid the popping of the roll by so-called guide bars which were arranged in a circle around the winding. Since the guide bars were fixedly attached to a position, their effectiveness was given only at a certain winding weight. Thus, they limited the winding weight upwards and at the same time downwards, which impaired a flexible production with the respective plant. Furthermore, they provided a scraper before to release the end of the tape from the winding and out of the winding furnace. Since the elaborately designed scraper had to be mounted between the furnace and the rolling stand, he noticeably reduced the view of the belt.

In der US 5,637,249 wird beschrieben, dass man mit Hilfe einer beheizten Treibeinrichtung in der Ofenöffnung das Metallband quasi ganz im Wickelofen aufwickeln kann. Beheizt werden soll der Treiber durch eine separate Heizquelle. Diese Lösung erweist sich technisch als sehr aufwendig und kann die Länge des sich unzulässig abkühlenden Bandes nur minimieren. Denn um sicher gewährleisten zu können, dass das Band aus dem Wickelofen wieder heraus gefördert werden kann, darf das Band die Treibeinrichtung nicht verlassen. Diese bedeutet aber, dass unter Betriebsbedingungen das Bandende nie in den Wickelofen gefördert wird.In the US 5,637,249 is described that you can use a heated propellant device in the oven opening, the metal strip almost completely wind up in the winding furnace. The driver should be heated by a separate heat source. This solution proves to be technically very complicated and can only minimize the length of the inadmissible cooling tape. Because in order to be able to reliably ensure that the tape can be conveyed out of the winding furnace out again, the tape must not leave the driving device. However, this means that under operating conditions, the end of the tape is never conveyed into the winding furnace.

In der EP 0 619 377 B1 wird der Gedanke eines Treibers in Kombination mit einer Dreirollenbiegeeinrichtung und eines Abstreifers erläutert. Um den Treiber und die Dreirollenbiegeeinrichtung zu kombinieren wurden zwei Rollen in die Wand des Wickelofens eingebaut, so dass sie sich teils im und teils außerhalb des Ofens befinden. Als dritte Rolle, um die gebogen wird, wird die Ofentrommel verwendet. Da der Bund auf der Ofentrommel mit jeder Windung in seinem Durchmesser wächst, ist die Ofentrommel so gelagert, dass sie mittels Hydraulikzylinder in einer Führung verschoben werden kann. Das Bandende wird in der Treib-Biegeeinrichtung im Ofen gehalten, und zwar zwischen einer der Rollen, die in die Wand des Wickelofens eingebaut ist und dem Bund. Mit dem Abstreifer soll sichergestellt werden, dass selbst, wenn das Bandende am Bund klebt, dieses gelöst werden kann und das Bandende sicher aus dem Ofen ausgefördert wird.In the EP 0 619 377 B1 the idea of a driver is explained in combination with a three-roll bender and a scraper. In order to combine the driver and the three-roll bender, two rolls were installed in the wall of the winding furnace so that they are partly in and partly outside the furnace. As the third roll to be bent, the kiln drum is used. Since the collar grows on the furnace drum with each turn in its diameter, the furnace drum is mounted so that it can be moved by means of hydraulic cylinders in a guide. The tape end is held in the blowing and bending device in the oven, between one of the rollers, which is installed in the wall of the winding furnace and the collar. The scraper should ensure that even if the end of the tape on the collar sticks, this can be solved and the end of the tape is safely discharged from the oven.

Ein Nachteil dieser Vorrichtung ist, dass das Band, während es im Wickelofen gespeichert wird, mit den Rollen, die in der Wand des Wickelofens angeordnet sind, in Kontakt steht, die deutlich kälter sind als das Band selbst sind. Dieses hat zur Folge, dass das Bandende unzulässig abkühlt und lediglich, wie bei dem oben aufgeführten Dokumenten, mit noch aufwändigeren Einrichtungen die unterkühlte Bandlänge minimiert wird. Außerdem wird durch den Einbau der Rollen in die Ofenwand die Isolierung des Wickelofens geschwächt und sein Energieverbrauch erhöht.A disadvantage of this device is that the tape, while stored in the winding furnace, is in contact with the rollers which are arranged in the wall of the winding furnace, which are significantly colder than the belt itself. This has the consequence that the end of the tape cools unacceptably and only, as in the documents listed above, with even more sophisticated facilities, the supercooled tape length is minimized. In addition, the insulation of the winding furnace is weakened by the incorporation of the rollers in the furnace wall and increases its energy consumption.

Weitere Wickelöfen sind in DE 699 19 423 T2 , DE 40 16 256 A1 und US 5,269,166 beschrieben.Further coiling ovens are in DE 699 19 423 T2 . DE 40 16 256 A1 and US 5,269,166 described.

Es gibt aber auch Fälle, in denen es wünschenswert wäre, das komplette Band ganz in den Wickelofen einzuziehen. Ein solcher Fall liegt vor, wenn der Betrieb auf Grund einer Störung während des Walzens eines Metallbandes unterbrochen werden muss. Ein anderer Fall liegt vor, wenn bei bestimmten Metallgüten eine Walzpause erforderlich ist, um die gewünschten metallurgischen Eigenschaften einzustellen. In solchen Fällen wird durch das Aufwickeln des gesamten Bandes ein unzulässiges Abkühlen des Bandendes vermieden und die die Ausbringung der Anlage gesteigert.But there are also cases in which it would be desirable to collect the entire tape completely in the winding furnace. Such a case exists when operation must be interrupted due to a disturbance during rolling of a metal strip. Another case is when certain metal grades require a rolling break to set the desired metallurgical properties. In such cases, unwinding of the entire tape prevents unacceptable cooling of the tape end and increases the output of the equipment.

Mit den heute üblichen Wickelöfen ist dies nicht möglich. Würde das komplette Metallband in die bekannten Wickelöfen eingezogen, so würde der auf der Ofentrommel gebildete Wickel auf Grund der Elastizität des Metallbandes aufspringen. Dadurch würde sich das Bandende nicht mehr durch Umkehrung der Drehrichtung aus dem Wickelofen ausfördern lassen. Das Bandende müsste dann manuell mit entsprechenden Werkzeugen und entsprechender Schutzkleidung aus dem Wickelofen gezogen werden.This is not possible with the usual winding ovens. If the entire metal strip were pulled into the known winding ovens, the winding formed on the oven drum would spring open due to the elasticity of the metal strip. As a result, the end of the tape would no longer be able to be discharged from the winding furnace by reversing the direction of rotation. The end of the tape would then have to be pulled out of the winding furnace manually with appropriate tools and appropriate protective clothing.

DE 32 24 621 A1 beschreibt einen Haspelofen mit einem horizontalen Haspel, dessen Dorn innerhalb einer Wärmeschutzhaube abgeordnet ist, mit einer den Haspeldorn umschließenden, Andrückrollen für ein auf- bzw. abzuwickelndes Band aufweisenden Bandführung, die zwei von entgegen gesetzten Seiten gegen den Haspeldorn drückbare, zylindrische Führungssegmente umfasst, von denen das im Aufwickelsinn vorgeordnete Führungssegment an eine unterhalb des Haspeldoms schwenkbar gelagerte Bandbrücke für die Zu- und Abförderung des Bandes anschließt. Der Haspelofen ist dadurch gekennzeichnet, dass die beiden Führungssegmente an außerhalb der Wärmeschutzhaube angeordneten Schwingen befestigt sind, die quer zur Andrückrichtung der Führungssegmente verlaufen und zum Haspeldorn parallel Schwenkachsen aufweisen, dass das im Aufwickelsinn nachgeordnete Führungssegment mit seiner Ablaufkante den Bandabstreifer bildet und dass die mit einem gesonderten Schwenkantrieb ausgerüstete Bandbrücke vorzugsweise aus einem Rollgang besteht, dessen dem Haspeldorn zugekehrte Endrolle als Andrückrolle für das Band dient. Auf Seite 3 dieses Dokuments wird ausgeführt, dass es aus DE - PS 811 837 bekannt ist, das Band völlig auf dem Haspeldorn des Haspelofens aufzuwickeln. Dieses völlige Aufwickeln des Bandes macht es aber notwendig, besondere Bandabstreifer vorzusehen, die bei einer Drehrichtungsumkehr des Haspels ein Abwickeln des Bandes erlauben. DE 32 24 621 A1 describes a coiler oven with a horizontal reel, the mandrel is seconded within a heat shield, with a reel mandrel enclosing, pressure rollers for an up or unwinding band having tape guide comprising two of opposite sides against the reel mandrel pushable, cylindrical guide segments of where the upstream in the Aufwickelsinn guide segment connected to a pivotally mounted below the reel mandrel band bridge for the supply and removal of the belt. The reel furnace is characterized in that the two guide segments are attached to arranged outside the heat shield swing, which are transverse to the pressing direction of the guide segments and parallel to the coiler mandrel pivot axes, that in the Aufwickelsinn downstream guide segment forms the belt scraper with its trailing edge and that with a equipped separate pivot drive belt bridge preferably consists of a roller table, the reel mandrel facing end roller serves as a pressure roller for the band. On page 3 of this document it is stated that it is off DE - PS 811 837 it is known to wind the tape completely on the coiler mandrel of the coiler furnace. However, this complete winding of the tape makes it necessary to provide special Bandabstreifer that allow unwinding of the tape at a reversal of the direction of rotation of the reel.

Eine ähnliche Vorrichtung ist auch aus der US 2,628,790 bekannt.A similar device is also from the US 2,628,790 known.

All den bekanten Ausführungen eines Wickelofens ist gemeinsam, das sie sehr aufwändig sind sowie viele mechanische und bewegliche Komponenten im Wickelofen vorsehen.All the known designs of a winding furnace have in common that they are very complex and provide many mechanical and movable components in the winding furnace.

Der Erfindung liegt daher die Aufgabe zugrunde, die bekannten, mechanisch aufwendigen, Konstruktionen zu vereinfachen und die oben genannten Nachteile zu vermeiden.The invention is therefore based on the object to simplify the known, mechanically complex, constructions and to avoid the disadvantages mentioned above.

Diese Aufgabe wird erfindungsgemäß durch einen Wickelofen gemäß Anspruch 1 gelöst.This object is achieved by a winding furnace according to claim 1.

Der Oberbegriff von Anspruch 1 ist aus der WO 03 / 048 397 A1 bekannt.The preamble of claim 1 is known from WO 03/048 397 A1 known.

Weitere Ausgestaltungen des Wickelofens ergeben sich aus den diesbezüglichen Unteransprüchen.Further embodiments of the winding furnace resulting from the related subclaims.

Mit der erfindungsgemäßen Vorrichtung wird es möglich, ein Metallband vollständig im Wickelofen zu speichern. Dazu wird das Aufspringen des Wickels, nachdem das Ende des Metallbandes nicht mehr eingespannt ist, verhindert, indem eine Ofenrolle auf den Wickel aufgesetzt wird. Grundsätzlich kann die Ofenrolle an beliebiger Stelle auf den Wickel gesetzt werden. Um das Bandende gut kontrollieren zu könne ist es jedoch von Vorteil, dies im Bereich der oberen Hälfte des Wickels zu tun. Die Ofenrolle ist wie die Ofentrommel im Wickelofen angebracht. Aufgebaut ist die Ofenrolle, ebenfalls wie der Ofentrommel, mit einem heißen Mantel, der auf einer gekühlten Achse montiert ist. Dies hat den Vorteil, dass mit dem üblichen hitzebeständigen Material des Rollenmantels Temperaturen von über 950°C erreicht werden können. Damit führt das Aufsetzen der Ofenrolle auf den Wickel zu einer vernachlässigbaren Abkühlung an der Aufsetzstelle. Bei dünnen Banddicken, z.B. kleiner 6 mm, erfolgt sogar ein Aufheizen der Aufsetzstelle.With the device according to the invention, it is possible to store a metal strip completely in the winding furnace. For this purpose, the popping of the roll, after the end of the metal strip is no longer clamped, prevented by a furnace roll is placed on the winding. Basically, the oven roller can be placed anywhere on the winding. However, to control the end of the tape well, it is advantageous to do so in the upper half of the roll. The oven roll is mounted like the oven drum in the winding oven. The furnace roll is built up, just like the furnace drum, with a hot jacket mounted on a cooled axle. This has the advantage that with the usual heat-resistant material of the roll shell temperatures of over 950 ° C can be achieved. Thus, placing the oven roll on the winding leads to a negligible cooling at the Aufsetzstelle. For thin tape thicknesses, e.g. smaller than 6 mm, even a heating of the Aufsetzstelle.

Die Zapfen der Ofenrolle sind in zwei unabhängigen Hebeln außerhalb des Ofens gelagert. Die Hebel ihrerseits sind in Lagerböcken gelagert, die außen an die Konstruktion des Ofens montiert sind. Um die Ofenrolle aufzusetzen und wieder abheben zu können, ist an einem oder an beiden Hebeln ein Hydraulikzylinder oder eine andere Art von Antrieb befestigt, der sich auch an der der Konstruktion des Ofens abstützt.The pegs of the oven roll are stored in two independent levers outside the oven. The levers, in turn, are supported in bearing blocks which are externally mounted to the construction of the furnace. In order to put the oven roll and lift off again, a hydraulic cylinder or other type of drive is attached to one or both levers, which is also supported on the construction of the furnace.

Um die Wärmeverluste des Ofens durch die nach außen geleitete Ofenrolle zu minimieren, sind an den Hebeln Schilde angebracht, die die Aussparungen in der Ofenwand, die erforderlich sind um die Ofenrolle zu schwenken, verschließen. Die Größe der Aussparungen ist bestimmt durch den Schwenkbereich der Ofenrolle Die Größe der Schilde wird so gewählt, dass selbst in der obersten als auch in der untersten Position der Ofenrolle die Aussparungen verschlossen sind.In order to minimize the heat losses of the oven by the outwardly directed oven roll shields are attached to the levers, which close the openings in the furnace wall, which are required to pivot around the furnace roll. The size of the recesses is determined by the swivel range of the furnace roll. The size of the shields is selected so that even in the uppermost as well as in the lowest position of the furnace roll, the recesses are closed.

Damit die Ofenrolle gleichmäßig von allen Seiten im Wickelofen der Hitze ausgesetzt ist, wird sie angetrieben. Der Antrieb erfolgt beispielsweise über einen Elektromotor, der über eine Gelenkwelle mit der Ofenrolle verbunden ist. Es sind aber auch andere Antriebe denkbar, wie z.B. ein Fluidmotor, der direkt an die Ofenrolle montiert wird. Über entsprechende Rohrverbindungen wird dem Fluidmotor ein Medium zugeführt, wie z.B. Wasser, Luft, Öl oder dgl. Der Vorteil eines solchen Antriebes ist der kompakte Aufbau des Antriebssystems und sein geringes Gewicht im Vergleich zur Gelenkwelle.To ensure that the oven roll is exposed to the heat evenly from all sides in the winding oven, it is driven. The drive is for example via an electric motor which is connected via a propeller shaft with the furnace roller. However, other drives are conceivable, such as e.g. a fluid motor, which is mounted directly on the furnace roll. Through appropriate pipe connections, a medium is supplied to the fluid motor, e.g. Water, air, oil or the like. The advantage of such a drive is the compact design of the drive system and its low weight compared to the propeller shaft.

Wird im Wickelofen ein Wickel gespeichert, so wird bei entsprechender Ausführung der Ofenklappen der Wickelofen vollkommen geschlossen. Auch kann die Trommel während der Zeit, in der der Wickel gespeichert im Wickelofen gespeichert ist, hin und her gedreht werden. Der Winkelbereich, in dem die Trommel gedreht werden kann, ist abhängig vom Aufsetzpunkt der Ofenrolle und wie weit das Bandende aufgewickelt wird. Durch das Hin- und Herdrehen der Trommel dreht sich auch die Ofenrolle und es wird sichergestellt, dass sie gleichmäßig erhitzt bleibt und damit die Aufsetzstelle nicht auskühlt.If a winding is stored in the winding furnace, the winding furnace is completely closed with appropriate execution of the furnace flaps. Also, the drum can be rotated during the time in which the winding stored in the winding furnace, back and forth. The angular range in which the drum can be rotated, depends on the Aufsetzpunkt the oven roll and how far the end of the tape is wound up. By turning the drum back and forth, the oven roll also rotates to ensure that it remains evenly heated and does not cool down the place where it is placed.

Um das Band sicher aus dem Wickelofen zu fördern, wird die Ofenklappe, mit der der Wickelofen verschlossen wird, so ausgeführt, dass die Abdeckplatte der Ofenklappe aufgestellt wird, um das Bandende beim Ausfördern bereits im Wickelofen zu führen.In order to convey the tape safely out of the winding furnace, the furnace flap, with which the winding furnace is closed, carried out so that the cover plate of the furnace flap is placed to guide the end of the tape during removal already in the winding furnace.

Ein Abstreifer ist bei der erfindungsgemäßen Vorrichtung nicht erforderlich. Das Bandende wird nicht am Wickel kleben, da das Bandende nicht am/auf dem Wickel aufliegt bzw. von der Ofenrolle an den Wickel gedrückt oder von ihr überrollt wird.A scraper is not required in the device according to the invention. The end of the tape will not stick to the roll because the end of the tape does not rest on / on the roll or is pressed against the roll by the oven roll or rolled over by it.

Ein Ausführungsbeispiel der Erfindung wird anhand von schematischen Zeichnungen näher beschrieben. Es zeigen:

Fig. 1
im Querschnitt ein Wickelofen mit geöffneter Ofenklappe beim Aufwickeln des Walzbandes;
Fig. 2
im Querschnitt ein Wickelofen mit geschlossener Ofenklappe und vollständig aufgewickeltem Walzband;
Fig. 3
im Querschnitt ein Wickelofen mit geöffneter Ofenklappe und einer Abdeckplatte zum Herausführen des Walzbandes;
Fig. 4
in Walzrichtung gesehen ein erster Antrieb der Rollenachse;
Fig. 5
in Walzrichtung gesehen ein zweiter Antrieb der Rollenachse;
An embodiment of the invention will be described in more detail with reference to schematic drawings. Show it:
Fig. 1
in cross-section, a winding oven with open oven door during winding of the rolled strip;
Fig. 2
in cross-section, a winding oven with closed oven door and fully wound rolled strip;
Fig. 3
in cross-section, a winding oven with open oven door and a cover plate for taking out the rolled strip;
Fig. 4
seen in the rolling direction, a first drive of the roller axis;
Fig. 5
seen in the rolling direction, a second drive of the roller axis;

In Figur 1 ist im Querschnitt ein Wickelofen 1 dargestellt, bei dem ein Walzband 2 auf einer Ofentrommel 3 im Ofeninneren 4 aufgewickelt wird. Hierbei wird das Walzband 2 über eine Ofenklappe 5, auf der Leittische 6 montiert sind, zur Ofentrommel 3 gelenkt. Die Ofenklappe 5 ist an einem Rollgangrahmen 7 befestigt und besteht aus einem Klappenelement 8 und einem Klappenelement 9, die über eine Klappenlagerung 10 miteinander verbunden und schwenkbar ausgebildet sind.In FIG. 1 is a winding furnace 1 is shown in cross section, in which a rolled strip 2 is wound on a furnace drum 3 in the furnace interior 4. Here, the rolled strip 2 via a furnace flap 5, are mounted on the control tables 6, directed to the furnace drum 3. The oven door 5 is attached to a roller table frame 7 and consists of a flap element 8 and a flap element 9, which are connected to each other via a flap bearing 10 and pivotally formed.

Im Ofeninneren 4 wird das Walzband 2 von einer Ofenrolle 11, bestehend aus Rollenmantel 12 und Rollenachse 13, an die an der Ofentrommel 3 bereits aufgewickelten Windungen gedrückt. Das Andrücken erfolgt über Hebel 14, die außerhalb des Wickelofens 1 angebracht sind. Die Hebel 14 sind hierzu beispielsweise mit Hydraulikzylindern 15 gekoppelt. Die Rollenachse 13 wird in Aussparungen 16, die sich im Gehäuse des Wickelofens 1 befinden, bewegt. Die Aussparungen werden durch an den Hebeln 14 befestigten, äußeren Hitzeschilden (nicht dargestellt) abgedeckt.In the furnace interior 4, the rolled strip 2 is pressed by a furnace roller 11, consisting of roller shell 12 and roller axis 13, to the already wound on the furnace drum 3 turns. The pressing is done by lever 14, the are mounted outside the winding furnace 1. For this purpose, the levers 14 are coupled, for example, with hydraulic cylinders 15. The roller axis 13 is in recesses 16, which are located in the housing of the winding furnace 1, moves. The recesses are covered by attached to the levers 14, outer heat shields (not shown).

Figur 2 zeigt den Wickelofen 2 mit geschlossener Ofenklappe 5. Das Walzband 2 befindet sich komplett im Ofeninneren 4. Die Ofentrommel 3 wird derart gedreht, das sich das Enden des Walzbandes immer zwischen der Ofenrolle 11 und der Ofenklappe 5 bewegt. FIG. 2 shows the winding furnace 2 with closed oven door 5. The rolled strip 2 is located completely in the oven interior 4. The oven drum 3 is rotated so that the ends of the rolled strip always moves between the furnace roller 11 and the oven door 5.

Zum Herausleiten des Walzbandes 2 aus dem Ofeninneren 4 wird, wie in Figur 3 dargestellt, die Ofentrommel 3 so gedreht, dass sich das Walzband 2 in Richtung Ofenklappe 5, speziell in Richtung Klappenelement 8 bewegt. Dabei wird die Ofenklappe 5 nicht komplett geöffnet, als nach unten verfahren, sondern eine Abdeckplatte 17 mittels eines Verstellelementes 18 um eine Plattenlagerung 19 gedreht. Hierdurch entsteht ein Leitführung für das Walzband 2 und eine Öffnung des Wickelofens, durch die das Walzband auf den Rollgang gelangt.To lead out the rolled strip 2 from the furnace interior 4, as in FIG. 3 shown, the furnace drum 3 is rotated so that the rolled strip 2 moves towards the oven door 5, especially in the direction of flap element 8. The oven door 5 is not completely opened, as moved down, but a cover plate 17 by means of an adjusting element 18 is rotated about a plate bearing 19. This creates a guide for the rolled strip 2 and an opening of the winding furnace through which the rolled strip passes on the roller table.

In Figur 4 ist, in Walzrichtung gesehen, der Antrieb der Ofenrolle dargstellt. Der Antrieb erfolgt in einer ersten Ausführung mittels eines Elektromotors, der durch eine Antriebswelle mit der Rollenachse gekoppelt ist.In FIG. 4 is, seen in the rolling direction, the drive of the furnace role dargstellt. The drive is effected in a first embodiment by means of an electric motor which is coupled by a drive shaft with the roller axis.

Eine zweite Ausführung ist in Figur 5 dargestellt. Hier erfolgt der Antrieb der Rollenachse mittels eines an der Rollenachse verbundenen Fluidmotors. Durch eine derartige Ausführung, bei der der Antrieb direkt angeflanscht ist, wird ein kompakter Aufbau bei geringem Gewicht erreicht.A second version is in FIG. 5 shown. Here, the drive of the roller axis by means of a connected to the roller axis fluid motor takes place. By such an embodiment, in which the drive is flanged directly, a compact design is achieved with low weight.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Wickelofencoiler furnace
22
Walzbandrolled strip
33
Ofentrommelfurnace drum
44
Ofeninneresoven Interior
55
Ofenklappeoven door
66
Leittischecontrol desks
77
RollgangrahmenRoller frame
88th
Klappenelementflap element
99
Klappenelementflap element
1010
Klappenlagerungflap bearing
1111
Ofenrollefurnace roller
1212
Rollenmantelroller shell
1313
Rollenachseroller axis
1414
Hebellever
1515
Hydraulikzylinderhydraulic cylinders
1616
Aussparungenrecesses
1717
Abdeckplattecover
1818
Verstellelementadjustment
1919
Plattenlagerungdisk storage

Claims (7)

  1. Coiling furnace (1), in which a hot-rolled strip (2) is wound up and unwound on a furnace drum (3) in the furnace interior (4) in reciprocating transport with reversing and optionally heated, comprising a guide table (6), which is mounted on the movable furnace flap (5) of the coiling furnace (1), for the introduction and/or guidance of the rolled strip (2), wherein the furnace flap (5) and the coiling furnace (1) are separate constructional bodies, the furnace flap (5) is arranged on a part of a roller path frame (7) disposed below the coiling furnace (1) and the furnace flap (5) is divided into at least two elements (8, 9) pivotable relative to one another and the two flap elements (8, 9) are connected by way of a flap bearing (10) and constructed to be pivotable, characterised in that the coiling furnace (1) is constructed in the furnace interior (4) with only one furnace roller (11) and that the flap element (8) has at the outer end thereof a plate bearing (19) at which a cover plate (17) with an adjusting element (18) is constructed so that the cover plate (17) can be set up.
  2. Coiling furnace (1) according to claim 1, characterised in that the furnace roller (11) is constructed to consist of a roller casing (12) and a roller axle (13).
  3. Coiling furnace (1) according to claim 2, characterised in that the roller casing (12) is constructed from a heat-resistant material.
  4. Coiling furnace (1) according to claim 2, characterised in that the roller axle (13) is constructed with an internal cooling.
  5. Coiling furnace (1) according to any one of claims 1 to 4, characterised in that the furnace roller (11) is constructed above the fulcrum (14) of the furnace drum (3) to bear against the rolled strip (2).
  6. Coiling furnace (1) according to any one of claims 1 to 5, characterised in that the furnace roller (11) is constructed to be driven.
  7. Coiling furnace (1) according to claim 6, characterised in that the drive of the furnace roller (11) is constructed as an electric motor or fluid motor.
EP07786218.3A 2006-08-12 2007-07-20 Coiling furnace Not-in-force EP2052090B1 (en)

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DE102006037962A DE102006037962A1 (en) 2006-08-12 2006-08-12 coiler furnace
PCT/EP2007/006469 WO2008019751A1 (en) 2006-08-12 2007-07-20 Coiling furnace

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EP2052090A1 EP2052090A1 (en) 2009-04-29
EP2052090B1 true EP2052090B1 (en) 2013-11-20

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EP (1) EP2052090B1 (en)
JP (1) JP4937351B2 (en)
CN (1) CN101501225B (en)
DE (1) DE102006037962A1 (en)
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RU2391168C1 (en) 2010-06-10
EP2052090A1 (en) 2009-04-29
WO2008019751A1 (en) 2008-02-21
CN101501225A (en) 2009-08-05
US20100101293A1 (en) 2010-04-29
JP2010500176A (en) 2010-01-07
DE102006037962A1 (en) 2008-02-14
CN101501225B (en) 2011-08-03
UA93095C2 (en) 2011-01-10

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