EP2052090A1 - Coiling furnace - Google Patents

Coiling furnace

Info

Publication number
EP2052090A1
EP2052090A1 EP07786218A EP07786218A EP2052090A1 EP 2052090 A1 EP2052090 A1 EP 2052090A1 EP 07786218 A EP07786218 A EP 07786218A EP 07786218 A EP07786218 A EP 07786218A EP 2052090 A1 EP2052090 A1 EP 2052090A1
Authority
EP
European Patent Office
Prior art keywords
furnace
winding
roller
flap
door
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP07786218A
Other languages
German (de)
French (fr)
Other versions
EP2052090B1 (en
Inventor
Karl Hoen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Siemag AG
Original Assignee
SMS Demag AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SMS Demag AG filed Critical SMS Demag AG
Publication of EP2052090A1 publication Critical patent/EP2052090A1/en
Application granted granted Critical
Publication of EP2052090B1 publication Critical patent/EP2052090B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 mill, 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 mounted on the movable furnace flap of the winding furnace Leittician for threading and / or guiding the rolled strip, wherein the furnace flap and the winding furnace are separate structures, the furnace flap is disposed on a below the winding furnace part of a roller table frame and the furnace flap is divided into at least two mutually hinged elements and both flap elements connected via a flap bearing and are designed pivotally.
  • Pressure roller is provided, which lays against the Entzu mattersrolle when pivoting the tilting table and together with this forms a stripper pulls the unwinding the strip-shaped rolling stock of the reel drum 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 rolling mill and height-adjustable drive rolls and adjustable guides for the rolling stock arranged on both sides of the rolling mill, to which the rolled stock is to a certain extent Rolled back and forth 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.
  • No. 5,637,249 describes that the metal strip can be wound up almost completely in the winding furnace with the aid of a heated driving device in the furnace opening.
  • 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.
  • EP 0 619 377 B1 explains the idea of a driver in combination with a three-roller bending device and a scraper.
  • two rolls were installed in the wall of the winding furnace so that they are partly in and partly outside the furnace.
  • the kiln drum is used as the third roll to be bent. 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 ribbon end is held in the furnace in the blowing and bending device, between one of the rolls, which is built into 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.
  • 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 24621 A1 describes a reel furnace with a horizontal reel, the mandrel is seconded within a heat shield, with a reel mandrel enclosing, pressure rollers for an up or unwound tape having tape guide, the two of opposite sides pressed against the reel mandrel, cylindrical Guiding segments includes, of which the upstream in the winding sense guide segment connects to a pivotally mounted below the coiler mandrel belt bridge for the supply and Abförde- tion of the band.
  • the coiler oven is characterized in that the two guide segments are fixed to arranged outside the heat shield rockers that 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 the equipped with a separate pivot drive band bridge preferably consists of a roller table, the reel mandrel facing end roller serves as a pressure roller for the band. It is stated on page 3 of this document that it is known from DE - PS 811 837 to wind the band 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.
  • the invention is therefore based on the object to simplify the known, mechanically complex, constructions and to avoid the disadvantages mentioned above.
  • This object is achieved in that is formed in a winding furnace according to the preamble of claim 1 of the winding furnace in the furnace interior with only one furnace roller.
  • the preamble of claim 1 is known from WO 03/048 397 A1.
  • the oven roller can be placed anywhere on the winding. In order to be able to control the end of the tape well, however, it is advantageous to do this in the area of 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 95O 0 C can be achieved.
  • placing the oven roll on the winding leads to a negligible cooling at the Aufsetzstelle. For thin strip thicknesses, eg smaller than e mm, even a heating up of the placement point takes place.
  • 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.
  • 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 back and forth during the time that the winding stored in the winding oven is stored.
  • the angular range in which the drum can be rotated depends on the Aufsetzddling the oven roll and how far the end of the tape is wound up.
  • the oven roll 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 reel as the end of the reel does not rest on the reel or is pressed against the reel by the furnace reel or rolled over by it.
  • Figure 1 is a cross-section of a winding oven with open oven door during winding of the rolled strip.
  • Figure 2 is a cross-section of a winding furnace with closed oven door and fully wound rolled strip.
  • Fig. 3 in cross section a winding furnace with open oven door and a
  • 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
  • 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 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 oven 2 with closed oven flap 5.
  • the oven drum 3 is rotated in such a way that the ends of the rolled strip always move between the oven roller 11 and the oven door 5.
  • the furnace drum 3 is rotated in such a way that the rolled strip 2 moves in the direction of the furnace flap 5, in particular in the direction of the 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. A second embodiment is shown in FIG. Here, 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.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (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

Wickelofen coiler furnace
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 ei- nes 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 mill, 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 mounted on the movable furnace flap of the winding furnace Leittische for threading and / or guiding the rolled strip, wherein the furnace flap and the winding furnace are separate structures, the furnace flap is disposed on a below the winding furnace part of a roller table frame and the furnace flap is divided into at least two mutually hinged elements and both flap elements connected via a flap bearing and are designed pivotally.
Aus der DE 743 011 ist ein Steckel-Haspelofen mit schwenkbarem Wipptisch, Entzunderungsrolle und Abstreifer bekannt, wobei der Wipptisch mit einerFrom DE 743 011 a Steckel coiler oven with pivotable rocker table, descaling and scraper is known, the rocking table with a
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.Pressure roller is provided, which lays against the Entzunderungsrolle when pivoting the tilting table and together with this forms a stripper pulls the unwinding the strip-shaped rolling stock of the reel drum 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. Bei diesen bekannten Vorrichtungen versuchte man das Aufspringen des Wickels durch so genannte Fϋhrungsbalken, 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.DE 685 904 describes a reversing mill for rolling blocks into strips and strips with coiler ovens arranged on both sides of the rolling mill and height-adjustable drive rolls and adjustable guides for the rolling stock arranged on both sides of the rolling mill, to which the rolled stock is to a certain extent Rolled back and forth 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. In these known devices, attempts were made 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.No. 5,637,249 describes that the metal strip can be wound up almost completely in the winding furnace with the aid of a heated driving device in the furnace opening. 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 RoI- len, 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.EP 0 619 377 B1 explains the idea of a driver in combination with a three-roller bending device 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 ribbon end is held in the furnace in the blowing and bending device, between one of the rolls, which is built into 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 winding ovens are described in DE 699 19 423 T2, DE 40 16 256 A1 and US 5,269,166.
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 Betheb 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 gesam- ten 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 is when the operator 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 strip prevents unacceptable cooling of the strip end and increases the output of the plant.
Mit den heute üblichen Wickelöfen ist dies nicht möglich. Würde das komplette Metallband in die bekannten Wickelöfen eingezogen, so würde der auf der O- fentrommel 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. DE 32 24621 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 Haspeldorns schwenkbar gelagerte Bandbrücke für die Zu- und Abförde- rung 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 Führungs- segmente 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.This is not possible with the usual winding ovens. If the complete metal strip were pulled into the known winding ovens, the winding formed on the open 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 24621 A1 describes a reel furnace with a horizontal reel, the mandrel is seconded within a heat shield, with a reel mandrel enclosing, pressure rollers for an up or unwound tape having tape guide, the two of opposite sides pressed against the reel mandrel, cylindrical Guiding segments includes, of which the upstream in the winding sense guide segment connects to a pivotally mounted below the coiler mandrel belt bridge for the supply and Abförde- tion of the band. The coiler oven is characterized in that the two guide segments are fixed to arranged outside the heat shield rockers that 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 the equipped with a separate pivot drive band bridge preferably consists of a roller table, the reel mandrel facing end roller serves as a pressure roller for the band. It is stated on page 3 of this document that it is known from DE - PS 811 837 to wind the band 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 known from US 2,628,790.
All den bekanten Ausführungen eines Wickelofens ist gemeinsam, das sie sehr aufwändig sind sowie viele mechanische und bewegliche Komponenten im Wi- ckelofen 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 oven.
Der Erfindung liegt daher die Aufgabe zugrunde, die bekannten, mechanisch aufwendigen, Konstruktionen zu vereinfachen und die oben genannten Nachteile zu vermeiden. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass bei einem Wickelofen gemäß Oberbegriff von Anspruch 1 der Wickelofen im Ofeninneren mit nur einer Ofenrolle ausgebildet ist.The invention is therefore based on the object to simplify the known, mechanically complex, constructions and to avoid the disadvantages mentioned above. This object is achieved in that is formed in a winding furnace according to the preamble of claim 1 of the winding furnace in the furnace interior with only one furnace roller.
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.
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 voll- ständig 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 obe- ren 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 95O0C 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 e 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. In order to be able to control the end of the tape well, however, it is advantageous to do this in the area of 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 95O 0 C can be achieved. Thus, placing the oven roll on the winding leads to a negligible cooling at the Aufsetzstelle. For thin strip thicknesses, eg smaller than e mm, even a heating up of the placement point takes place.
Die Zapfen der Ofenrolle sind in zwei unabhängigen Hebeln außerhalb des O- fens 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. 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.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. 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 gespei- chert 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 back and forth during the time that the winding stored in the winding oven is stored. 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. 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 ü- berrollt wird.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 reel as the end of the reel does not rest on the reel or is pressed against the reel by the furnace reel or rolled over by it.
Ein Ausführungsbeispiel der Erfindung wird anhand von schematischen Zeichnungen näher beschrieben. Es zeigen:An embodiment of the invention will be described in more detail with reference to schematic drawings. Show it:
Fig. 1 im Querschnitt ein Wickelofen mit geöffneter Ofenklappe beim Aufwickeln des Walzbandes;Figure 1 is a cross-section of a winding oven with open oven door during winding of the rolled strip.
Fig. 2 im Querschnitt ein Wickelofen mit geschlossener Ofenklappe und vollständig aufgewickeltem Walzband;Figure 2 is a cross-section of a winding furnace with closed oven door and fully wound rolled strip.
Fig. 3 im Querschnitt ein Wickelofen mit geöffneter Ofenklappe und einerFig. 3 in cross section a winding furnace with open oven door and a
Abdeckplatte zum Herausführen des Walzbandes;Cover plate for taking out the rolled strip;
Fig. 4 in Walzrichtung gesehen ein erster Antrieb der Rollenachse;Fig. 4 seen in the rolling direction, a first drive of the roller axis;
Fig. 5 in Walzrichtung gesehen ein zweiter Antrieb der Rollenachse;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 O- fentrommel 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. 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 Figure 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. Here, the rolled strip 2 via a furnace flap 5, are mounted on the control tables 6, directed to the O- 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. 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 WalzbandFIG. 2 shows the winding oven 2 with closed oven flap 5. The rolled strip
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.2 is located completely inside the oven 4. The oven drum 3 is rotated in such a way that the ends of the rolled strip always move between the oven roller 11 and the oven door 5.
Zum Herausleiten des Walzbandes 2 aus dem Ofeninneren 4 wird, wie in FigurTo lead the rolled strip 2 out of the furnace interior 4, as shown in FIG
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.3, the furnace drum 3 is rotated in such a way that the rolled strip 2 moves in the direction of the furnace flap 5, in particular in the direction of the 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 Figure 4, seen in the rolling direction, the drive of the furnace roller 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. BezugszeichenlisteA second embodiment is shown in FIG. 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. LIST OF REFERENCE NUMBERS
1 Wickelofen1 winding oven
2 Walzband2 rolled strip
3 Ofentrommel3 oven drum
4 Ofeninneres4 oven inside
5 Ofenklappe5 oven door
6 Leittische6 control tables
7 Rollgangrahmen7 roller table frame
8 Klappenelement8 flap element
9 Klappenelement9 flap element
10 Klappenlagerung10 flap storage
11 Ofenrolle11 oven roll
12 Rollenmantel12 roller jacket
13 Rollenachse13 roller axle
14 Hebel14 levers
15 Hydraulikzylinder15 hydraulic cylinders
16 Aussparungen16 recesses
17 Abdeckplatte17 cover plate
18 Verstellelement18 adjustment
19 Plattenlagerung 19 plate storage

Claims

Patentansprüche claims
1. Wickelofen (1 ), insbesondere Wickelofen (1 ) für Steckelwalzwerke, in dem ein warmgewalztes Band (2) im Hin- und Hertransport jeweils rever- sierend auf einer Ofentrommel (3) im Ofeninneren (4) auf- und abwickelt und gegebenenfalls erwärmt wird, umfassend auf der beweglichen Ofenklappe (5) des Wickelofens (1 ) montierte Leittische (6) zum Einfädeln und / oder Führen des Walzbandes (2), wobei die Ofenklappe (5) und der Wickelofen (1 ) separate Baukörper sind, die Ofenklappe (5) auf einem unterhalb des Wickelofens (1 ) befindlichen Teil eines Rollgangrahmens1. winding furnace (1), in particular winding furnace (1) for Steckel rolling mills, in which a hot rolled strip (2) in the forward and Hertransport each rever- sierend on a furnace drum (3) in the furnace inside (4) and unwinds and optionally heated is, comprising on the movable furnace flap (5) of the winding furnace (1) mounted guide tables (6) for threading and / or guiding the rolled strip (2), wherein the furnace flap (5) and the winding furnace (1) are separate structures, the furnace flap (5) on a below the winding furnace (1) located part of a roller table frame
(7) angeordnet ist und die Ofenklappe (5) in wenigstens zwei zueinander klappbare Elemente (8, 9) aufgeteilt ist und beide Klappenelemente (8, 9) über eine Klappenlagerung (10) verbunden und schwenkbar ausgebildet sind, dadurch gekennzeichnet, dass der Wickelofen (1 ) im Ofeninneren (4) mit nur einer Ofenrolle (11 ) ausgebildet ist.(7) is arranged and the oven door (5) in at least two mutually hinged elements (8, 9) is divided and both flap elements (8, 9) connected via a flap bearing (10) and pivotally formed, characterized in that the winding furnace (1) in the furnace interior (4) with only one furnace roller (11) is formed.
2. Wickelofen (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass die Ofenrolle (11 ) aus einem Rollenmantel (12) und einer Rollenachse (13) bestehend ausgebildet ist.Second winding furnace (1) according to claim 1, characterized in that the furnace roller (11) consists of a roller shell (12) and a roller axle (13) is formed.
3. Wickelofen (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass der Rollenmantel (12) aus einem hitzebeständigen Material ausgebildet ist.3. winding furnace (1) according to claim 2, characterized in that the roller casing (12) is formed of a heat-resistant material.
4. Wickelofen (1 ) nach Anspruch 2, dadurch gekennzeichnet, dass die Rollenachse (13) mit einer Innenkühlung ausgebildet ist. 4. winding furnace (1) according to claim 2, characterized in that the roller axle (13) is formed with an internal cooling.
5. Wickelofen (1 ) nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass die Ofenrolle (11 ) oberhalb des Drehpunktes (14) der Ofentrommel (3) an dem Walzband (2) anliegend ausgebildet ist.5. winding furnace (1) according to one of claims 1 to 4, characterized in that the furnace roller (11) above the pivot point (14) of the furnace drum (3) on the rolled strip (2) is formed adjacent.
6. Wickelofen (1 ) nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass die Ofenrolle (11 ) angetrieben ausgebildet ist.6. winding furnace (1) according to one of claims 1 to 5, characterized in that the furnace roller (11) is formed driven.
7. Wickelofen (1 ) nach Anspruch 6, dadurch gekennzeichnet, dass der Antrieb der der Ofenrolle (11 ) als Elektromotor oder Fluidmotor ausgebildet ist.7. Winding furnace (1) according to claim 6, characterized in that the drive of the furnace roller (11) is designed as an electric motor or fluid motor.
8. Wickelofen (1 ) nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass das Klappenelement (8) an seinem äußeren Ende eine Plattenlagerung (19) aufweist, an der eine Abdeckplatte (17) mit einem Verstellelement (18) ausgebildet ist. 8. Winding furnace (1) according to one of claims 1 to 7, characterized in that the flap element (8) at its outer end a plate bearing (19) on which a cover plate (17) with an adjusting element (18) is formed.
EP07786218.3A 2006-08-12 2007-07-20 Coiling furnace Not-in-force EP2052090B1 (en)

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RU2391168C1 (en) 2010-06-10
DE102006037962A1 (en) 2008-02-14
JP4937351B2 (en) 2012-05-23
CN101501225A (en) 2009-08-05
US20100101293A1 (en) 2010-04-29
UA93095C2 (en) 2011-01-10
JP2010500176A (en) 2010-01-07
EP2052090B1 (en) 2013-11-20
WO2008019751A1 (en) 2008-02-21
CN101501225B (en) 2011-08-03

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