EP2595779A1 - Polishing device for polishing a metal product - Google Patents

Polishing device for polishing a metal product

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Publication number
EP2595779A1
EP2595779A1 EP11726359.0A EP11726359A EP2595779A1 EP 2595779 A1 EP2595779 A1 EP 2595779A1 EP 11726359 A EP11726359 A EP 11726359A EP 2595779 A1 EP2595779 A1 EP 2595779A1
Authority
EP
European Patent Office
Prior art keywords
grinding
polishing
axis
wheel
wheels
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
EP11726359.0A
Other languages
German (de)
French (fr)
Other versions
EP2595779B1 (en
Inventor
Günter Schiller
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.)
Amova GmbH
Original Assignee
SMS Logistiksysteme GmbH
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 Logistiksysteme GmbH filed Critical SMS Logistiksysteme GmbH
Publication of EP2595779A1 publication Critical patent/EP2595779A1/en
Application granted granted Critical
Publication of EP2595779B1 publication Critical patent/EP2595779B1/en
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/10—Single-purpose machines or devices
    • B24B7/12—Single-purpose machines or devices for grinding travelling elongated stock, e.g. strip-shaped work
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B27/00—Other grinding machines or devices
    • B24B27/033—Other grinding machines or devices for grinding a surface for cleaning purposes, e.g. for descaling or for grinding off flaws in the surface
    • B24B27/04—Grinding machines or devices in which the grinding tool is supported on a swinging arm
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
    • B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
    • B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
    • B24B7/24—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass
    • B24B7/26—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding or polishing glass for simultaneously grinding or polishing opposite faces of continuously travelling sheets or bands

Definitions

  • the invention relates to a grinding device for grinding a metallic product, in particular a continuously cast slab, a billet or a block.
  • Continuously cast products in particular slabs, are usually subjected to surface treatment by grinding after the continuous casting in order to achieve a sufficient quality in the further processing of the product.
  • the slab is usually reciprocated longitudinally in a reversing motion under a grinder. At the end of each reversing movement, the grinder performs a stepwise cross-feed motion until the entire slab surface is ground.
  • the slab is stored on a grinding table lying on its long broad side.
  • the grinding performance can be increased by increasing the width of the grinding wheel, if at the same time the drive power of the motor is increased (eg from 315 kW to 630 kW with a doubling of the grinding wheel width); there- with the specific engine power can be kept the same size based on the grinding wheel width.
  • the width of the grinding wheel is limited by the manufacturing process of the grinding wheel and the strength of the binder of the grinding wheel; in practice, no grinding wheels more than 150 mm wide are used.
  • the disadvantage is the following: During grinding, the contact zone between the grinding wheel and the grinding material travels across the width of the grinding wheel, specifically the contact zone periodically reciprocates due to the reversing of the slab from the respective outer edge of the grinding wheel to the center of the grinding wheel. Broadening of the contact zone and an increase in the drive power therefore do not necessarily lead to the desired increase in the Abschliff amalgam, but possibly only to the fact that increases the service life of the grinding wheel (s).
  • the invention is therefore an object of the invention to provide a grinding device in which said increase in drive power leads directly to an increase in the Abfiffrfrate. Accordingly, the economics of the grinding process when grinding metallic products such as slabs, billets and blocks to be improved.
  • the grinding device has at least two grinding units, each grinding unit having a holder for a grinding unit, wherein a grinding unit has at least one driven grinding wheel and wherein the grinding wheels are arranged so that their axes of rotation parallel to each other.
  • Each holder is preferably pivotally mounted about an axis which is parallel to the axis of rotation of the grinding wheel and at a distance therefrom.
  • means may be present with which the distance between the pivot axis of the holder of the axis of rotation of the grinding wheel can be adjusted.
  • These means for adjusting the distance can be advantageously designed as an eccentric.
  • each holder comprises a linear guide with which the grinding wheel can be moved perpendicular to the axis of rotation of the grinding wheel and preferably horizontally.
  • Each grinding unit may further comprise a loading device for applying a defined pressure force of the grinding wheel on the metallic product, wherein the loading device comprises in particular a grinding pressure cylinder-piston system.
  • the grinding units may be pivotable together about an axis which is arranged perpendicular to the axis of rotation of the grinding wheels and vertically, wherein the pivot axis is preferably in the region of the grinding wheels, in particular between the grinding wheels of the two grinding units.
  • the grinding wheels of the grinding units are preferably arranged directly next to one another. They can have different grain and / or structure.
  • the grinding wheel can preferably be directly driven by the drive motor without the interposition of a transmission or other elements.
  • Fig. 1 shows schematically the side view of a grinding unit of a grinding device
  • FIG. 2 schematically shows the view "X" of the grinding unit according to FIG. 1;
  • Fig. 3 shows schematically the top view of a grinding device with two grinding units
  • Fig. 4 is an enlarged view of the area of the grinding wheels of
  • a grinding unit 3, 4 is shown, which is part of a grinding device 1, which can be seen in Fig. 3.
  • the grinding unit 3, 4 has a holder 5, 6, which is designed as a pendulum bracket with counterweight 19.
  • the holder 5, 6 is pivotally mounted about a pivot axis C, D.
  • the grinding unit 3, 4 has a grinding unit 7, 8 and has a mounted grinding wheel 9, 10 which is driven directly by a drive motor 11, 12.
  • the grinding wheel rotates about a rotation axis A, B.
  • an only indicated loading device 14, for. B. designed as a piston-cylinder system provided.
  • means 13 with which the distance between the pivot axis C, D and the axis of rotation A, B can be changed.
  • the axis of rotation A, B can be adjusted or adjusted relative to the pivot axis C, D in the horizontal direction H by means of an eccentric.
  • the material to be ground d. H.
  • the metallic product 2 is oscillated back and forth under the grinding wheel 9, 10, which is indicated by the direction of movement G of the product 2.
  • Fig. 3 the entire grinding device 1 is shown, wherein again the direction of movement G, which executes the product 2 during a grinding stroke, is located.
  • the two holders 5, 6, ie the two pendulum brackets are arranged parallel to one another and a respective grinding unit 7, 8 with a grinding wheel 9, 10 is arranged in its end region.
  • the position of the grinding wheel 9, 10 are changed in the horizontal direction; ie, the distance a or b between the pivot axis C and D of the holder 5, 6 to the rotation axis A and B of the grinding wheel 9, 10 can be slightly changed.
  • the displacement in the horizontal direction H produced by the eccentric 14 is entered with ei or with ⁇ 2 .
  • the entire grinding device 1 can pivot about an axis E, which extends in the vertical direction V.
  • the pivoting angle to the longitudinal axis (perpendicular to the pivot axis C, D and in this case pointing in the horizontal direction H), is marked with ⁇ and here is 90 °.
  • the pivot point E is located between the two grinding wheels 9, 10th
  • Fig. 4 it can be seen that the aim is to place the two grinding wheels 9, 10 as close to each other as possible.
  • the grinding wheels 9, 10 are each received on a grinding wheel receiving 15 and 16.
  • the fixing of the grinding wheels 9, 10 takes place by means of a fastening ring 17 or 18. Between the two fastening rings 7, 18 there is only a small gap. Accordingly, there is a minimum distance between the two grinding wheels 9, 10, which is limited only by the width of the mounting rings 17, 18 and by a small clearance between them.
  • the two grinding wheels 9, 10 in succession grind each with separate contact zones to the product. 2
  • the larger / coarser grit wheel may first perform a rough grinding operation followed by a finishing operation performed by the finer grit wheel.
  • the direct drive of the grinding wheel which is mounted on the drive shaft of the (electric or hydraulic) drive motor, as it were. But it can also be provided that the drive via transmission, V-belt, spindles, etc. takes place indirectly.
  • a grinding unit with its own drive motor is preferably provided for each grinding unit. If the said indirect drive mode is provided, it is also conceivable that a single drive motor drives the at least two grinding wheels.
  • Each of the grinding units 7, 8 can be equipped with more than one grinding wheel 9, 10.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Inorganic Chemistry (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)
  • Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)

Abstract

The invention relates to a polishing device (1) for polishing a metal product (2), in particular a continuously cast slab, billet, or block. The aim of the invention is to achieve a high polishing rate when said metal products are polished. According to the invention, this is achieved in that the polishing device (1) has at least two polishing assemblies (3, 4), each polishing assembly (3, 4) having a mounting (5, 6) for a polishing unit (7, 8). A polishing unit has at least one polishing disk (9, 10) and a driving motor (11, 12) that drives the polishing disk (9, 10). The polishing disks (9, 10) are arranged such that the rotational axes (A, B) of said disks run parallel to each other.

Description

Schleifvorrichtung zum Schleifen eines metallischen Produkts  Grinding device for grinding a metallic product
Die Erfindung betrifft eine Schleifvorrichtung zum Schleifen eines metallischen Produkts, insbesondere einer stranggegossenen Bramme, eines Knüppels oder eines Blocks. The invention relates to a grinding device for grinding a metallic product, in particular a continuously cast slab, a billet or a block.
Stranggegossene Produkte, insbesondere Brammen, werden zumeist nach dem Stranggießen einer Oberflächenbearbeitung durch Schleifen unterzogen, um bei der Weiterverarbeitung des Produkts eine hinreichende Qualität zu erzielen. Beim Schleifen stranggegossener Brammen wird die Bramme üblicherweise in reversie- render Bewegung unter einer Schleifvorrichtung (Schleifaggregat) in Längsrichtung hin und her bewegt. Am Ende jeder Reversierbewegung vollzieht die Schleifvorrichtung eine schrittweise Quervorschubbewegung, bis die gesamte Brammenoberfläche geschliffen ist. Während des Schleifens wird die Bramme auf einem Schleiftisch auf ihrer langen Breitseite liegend gelagert. Continuously cast products, in particular slabs, are usually subjected to surface treatment by grinding after the continuous casting in order to achieve a sufficient quality in the further processing of the product. In the case of continuous casting slabs, the slab is usually reciprocated longitudinally in a reversing motion under a grinder. At the end of each reversing movement, the grinder performs a stepwise cross-feed motion until the entire slab surface is ground. During grinding, the slab is stored on a grinding table lying on its long broad side.
Eine gattungsgemäße vorbekannte Vorrichtung zum Schleifen von Brammen ist in der EP 0 053 274 A1 beschrieben. A generic prior art apparatus for grinding slabs is described in EP 0 053 274 A1.
Bei dem sog. HP-Schleifen (High-Pressure-Schleifen) der Bramme muss aus Wirtschaftlichkeitsgründen eine hinreichende Schleif-Abtragsrate erzielt werden. Die Abschliffleistung lässt sich dabei durch Vergrößerung der Breite der Schleifscheibe erhöhen, wenn gleichzeitig die Antriebsleistung des Motors erhöht wird (z. B. von 315 kW auf 630 kW bei einer Verdopplung der Schleifscheibenbreite); da- mit kann die spezifische Motorleistung bezogen auf die Schleifscheibenbreite gleich groß gehalten werden. Die Breite der Schleifscheibe ist allerdings durch den Fertigungsprozess der Schleifscheibe und durch die Festigkeit des Bindemittels der Schleifscheibe begrenzt; in der Praxis werden keine Schleifscheiben mit mehr als 150 mm Breite eingesetzt. For so-called HP grinding (high-pressure grinding) of the slab, a sufficient grinding removal rate must be achieved for economic reasons. The grinding performance can be increased by increasing the width of the grinding wheel, if at the same time the drive power of the motor is increased (eg from 315 kW to 630 kW with a doubling of the grinding wheel width); there- with the specific engine power can be kept the same size based on the grinding wheel width. However, the width of the grinding wheel is limited by the manufacturing process of the grinding wheel and the strength of the binder of the grinding wheel; in practice, no grinding wheels more than 150 mm wide are used.
Es ist daher bekannt geworden, mehrere, insbesondere zwei, Schleifscheiben nebeneinander auf einer Schleifspindel einzusetzen. Nachteilig ist dabei allerdings folgendes: Beim Schleifen wandert die Kontaktzone zwischen Schleifscheibe und Schleifgut über die Breite der Schleifscheibe, und zwar wandert die Kontaktzone bedingt durch das Reversieren der Bramme von der jeweils äußeren Kante der Schleifscheibe zur Mitte der Schleifscheibe periodisch hin und her. Eine Verbreiterung der Kontaktzone und eine Erhöhung der Antriebsleistung führen daher nicht unbedingt zu der gewünschten Erhöhung der Abschliffleistung, sondern gegebenenfalls lediglich dazu, dass sich die Standzeit der Schleifscheibe(n) erhöht. It has therefore become known to use several, in particular two, grinding wheels side by side on a grinding spindle. However, the disadvantage is the following: During grinding, the contact zone between the grinding wheel and the grinding material travels across the width of the grinding wheel, specifically the contact zone periodically reciprocates due to the reversing of the slab from the respective outer edge of the grinding wheel to the center of the grinding wheel. Broadening of the contact zone and an increase in the drive power therefore do not necessarily lead to the desired increase in the Abschliffleistung, but possibly only to the fact that increases the service life of the grinding wheel (s).
Insofern kann nicht davon ausgegangen werden, dass der Einsatz doppelter Schleifscheiben auf einer Antriebsspindel bei doppelter Antriebsleistung auch zu einer doppelten Abschliffrate führt. In this respect, it can not be assumed that the use of double grinding wheels on a drive spindle with double drive power also leads to a double finalization rate.
Der Erfindung liegt daher die A u f g a b e zugrunde, eine Schleifvorrichtung zu schaffen, bei der die genannte Erhöhung der Antriebsleistung direkt zu einer Erhöhung der Abschliffrate führt. Demgemäß soll die Wirtschaftlichkeit des Schleifprozesses beim Schleifen von metallischen Produkten wie Brammen, Knüppeln und Blöcken verbessert werden. Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass die Schleifvorrichtung mindestens zwei Schleifaggregate aufweist, wobei jedes Schleifaggregat eine Halterung für eine Schleifeinheit aufweist, wobei eine Schleifeinheit mindestens eine angetriebene Schleifscheibe aufweist und wobei die Schleifscheiben so angeordnet sind, dass ihre Drehachsen parallel zueinander verlaufen. The invention is therefore an object of the invention to provide a grinding device in which said increase in drive power leads directly to an increase in the Abfiffrfrate. Accordingly, the economics of the grinding process when grinding metallic products such as slabs, billets and blocks to be improved. This object is achieved in that the grinding device has at least two grinding units, each grinding unit having a holder for a grinding unit, wherein a grinding unit has at least one driven grinding wheel and wherein the grinding wheels are arranged so that their axes of rotation parallel to each other.
Jede Halterung ist bevorzugt schwenkbar um eine Achse gelagert, die parallel zur Drehachse der Schleifscheibe ist und zu dieser einen Abstand aufweist. Hierbei können Mittel vorhanden sein, mit denen der Abstand zwischen der Schwenkachse der Halterung der Drehachse der Schleifscheibe eingestellt werden kann. Diese Mittel zur Einstellung des Abstands können vorteilhaft als Exzenter ausgebildet sein. Each holder is preferably pivotally mounted about an axis which is parallel to the axis of rotation of the grinding wheel and at a distance therefrom. In this case, means may be present with which the distance between the pivot axis of the holder of the axis of rotation of the grinding wheel can be adjusted. These means for adjusting the distance can be advantageously designed as an eccentric.
Eine alternative Lösung sieht vor, dass jede Halterung eine Linearführung um- fasst, mit der die Schleifscheibe senkrecht zur Drehachse der Schleifscheibe und bevorzugt horizontal verschoben werden kann. An alternative solution provides that each holder comprises a linear guide with which the grinding wheel can be moved perpendicular to the axis of rotation of the grinding wheel and preferably horizontally.
Jedes Schleifaggregat kann weiterhin eine Belastungseinrichtung zur Aufbringung einer definierten Andruckkraft der Schleifscheibe auf das metallische Produkt aufweisen, wobei die Belastungseinrichtung insbesondere ein Schleifdruck-Zylinder- Kolben-System umfasst. Each grinding unit may further comprise a loading device for applying a defined pressure force of the grinding wheel on the metallic product, wherein the loading device comprises in particular a grinding pressure cylinder-piston system.
Die Schleifaggregate können gemeinsam um eine Achse schwenkbar sein, die senkrecht zur Drehachse der Schleifscheiben und vertikal angeordnet ist, wobei die Schwenkachse bevorzugt im Bereich der Schleifscheiben liegt, insbesondere zwischen den Schleifscheiben der beiden Schleifaggregate. The grinding units may be pivotable together about an axis which is arranged perpendicular to the axis of rotation of the grinding wheels and vertically, wherein the pivot axis is preferably in the region of the grinding wheels, in particular between the grinding wheels of the two grinding units.
Die Schleifscheiben der Schleifaggregate sind bevorzugt unmittelbar nebeneinander angeordnet. Sie können unterschiedliche Körnung und/oder Struktur aufweisen. Die Schleifscheibe kann von dem Antriebsmotor ohne Zwischenschaltung eines Getriebes oder sonstiger Elemente vorzugsweise direkt angetrieben werden. The grinding wheels of the grinding units are preferably arranged directly next to one another. They can have different grain and / or structure. The grinding wheel can preferably be directly driven by the drive motor without the interposition of a transmission or other elements.
Mit der vorgeschlagenen Lösung wird erreicht, dass die Erhöhung der Antriebsleistung der Schleifvorrichtung unmittelbar zu einer proportionalen Erhöhung der Abschliffleistung (Abschliffrate) führt. Es lässt sich nämlich ermöglichen, dass die Schleifleistung so auf die Schleifscheiben verteilt wird, dass jede Schleifscheibe eine eigene Kontaktzone hat. With the proposed solution is achieved that the increase in the drive power of the grinding device directly leads to a proportional increase in the Abschliffleistung (Abschliffrate). Namely, it can be made possible that the grinding performance is distributed to the grinding wheels so that each grinding wheel has its own contact zone.
In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen: In the drawing, an embodiment of the invention is shown. Show it:
Fig. 1 schematisch die Seitenansicht eines Schleifaggregats einer Schleifvorrichtung; Fig. 1 shows schematically the side view of a grinding unit of a grinding device;
Fig. 2 schematisch die Ansicht„X" des Schleifaggregats gemäß Fig. 1 ; FIG. 2 schematically shows the view "X" of the grinding unit according to FIG. 1; FIG.
Fig. 3 schematisch die Draufsicht auf eine Schleifvorrichtung mit zwei Schleifaggregaten; und Fig. 3 shows schematically the top view of a grinding device with two grinding units; and
Fig. 4 eine vergrößerte Darstellung des Bereichs der Schleifscheiben der Fig. 4 is an enlarged view of the area of the grinding wheels of
Schleifvorrichtung gemäß Fig. 3.  Grinding device according to FIG. 3.
In Fig. 1 und Fig. 2 ist ein Schleifaggregat 3, 4 dargestellt, das Bestandteil einer Schleifvorrichtung 1 ist, die in Fig. 3 zu sehen ist. In Fig. 1 and Fig. 2, a grinding unit 3, 4 is shown, which is part of a grinding device 1, which can be seen in Fig. 3.
Das Schleifaggregat 3, 4 weist eine Halterung 5, 6 auf, die als Pendelkonsole mit Gegengewicht 19 ausgeführt ist. Die Halterung 5, 6 ist um eine Schwenkachse C, D schwenkbar gelagert. Das Schleifaggregat 3, 4 weist eine Schleifeinheit 7, 8 auf und besitzt eine gelagerte Schleifscheibe 9, 10, die von einem Antriebsmotor 11 , 12 direkt angetrieben wird. Die Schleifscheibe rotiert um eine Drehachse A, B. The grinding unit 3, 4 has a holder 5, 6, which is designed as a pendulum bracket with counterweight 19. The holder 5, 6 is pivotally mounted about a pivot axis C, D. The grinding unit 3, 4 has a grinding unit 7, 8 and has a mounted grinding wheel 9, 10 which is driven directly by a drive motor 11, 12. The grinding wheel rotates about a rotation axis A, B.
Um eine gewünschte Andruckkraft F auf das zu schleifende metallische Produkt 2 auszuüben, ist eine nur angedeutete Belastungseinrichtung 14, z. B. ausgebildet als Kolben-Zylinder-System, vorgesehen. In order to exert a desired pressure force F on the metallic product 2 to be ground, an only indicated loading device 14, for. B. designed as a piston-cylinder system provided.
Angedeutet sind auch Mittel 13, mit denen der Abstand zwischen der Schwenkachse C, D und der Drehachse A, B verändert werden kann. Vorliegend kann die Drehachse A, B relativ zur Schwenkachse C, D in horizontale Richtung H mittels eines Exzenters eingestellt bzw. verstellt werden. Also indicated are means 13 with which the distance between the pivot axis C, D and the axis of rotation A, B can be changed. In the present case, the axis of rotation A, B can be adjusted or adjusted relative to the pivot axis C, D in the horizontal direction H by means of an eccentric.
Das zu schleifende Gut, d. h. das metallische Produkt 2, wird unter der Schleifscheibe 9, 10 oszillierend hin- und hergeführt, was durch die Bewegungsrichtung G des Produkts 2 angedeutet ist. The material to be ground, d. H. The metallic product 2 is oscillated back and forth under the grinding wheel 9, 10, which is indicated by the direction of movement G of the product 2.
In Fig. 3 ist die gesamte Schleifvorrichtung 1 dargestellt, wobei wieder die Bewegungsrichtung G, die das Produkt 2 bei einem Schleifhub ausführt, eingezeichnet ist. Zu erkennen ist, dass die beiden Halterungen 5, 6, d. h. die beiden Pendelkonsolen, parallel zueinander angeordnet sind und in ihrem Endbereich je eine Schleifeinheit 7, 8 mit einer Schleifscheibe 9, 10 angeordnet ist. Mittels des nur angedeuteten Exzenters 14 kann die Lage der Schleifscheibe 9, 10 in horizontale Richtung verändert werden; d. h. der Abstand a bzw. b zwischen der Schwenkachse C bzw. D der Halterung 5, 6 zur Drehachse A bzw. B der Schleifscheibe 9, 10 kann geringfügig verändert werden. Die durch den Exzenter 14 hergestellte Verschiebung in horizontale Richtung H ist mit ei bzw. mit β2 eingetragen. Werden die beiden Exzenter der beiden Halterungen 5, 6 in Richtung der Horizontalen H betrachtet gegensinnig eingestellt, ergibt sich an den Schleifscheiben 9, 10 ein Abstand in horizontale Richtung H, der sich auf die Summe von ei und e2 beläuft. Desweiteren ist vorgesehen, dass die gesamte Schleifvorrichtung 1 um eine Achse E schwenken kann, die sich in vertikale Richtung V erstreckt. Der Schwenkwinkel zur Längsachse (senkrecht stehend auf der Schwenkachse C, D und vorliegend in horizontale Richtung H weisend), ist mit α eingezeichnet und beträgt hier 90°. Der Drehpunkt E befindet sich dabei zwischen den beiden Schleifscheiben 9, 10. In Fig. 3, the entire grinding device 1 is shown, wherein again the direction of movement G, which executes the product 2 during a grinding stroke, is located. It can be seen that the two holders 5, 6, ie the two pendulum brackets, are arranged parallel to one another and a respective grinding unit 7, 8 with a grinding wheel 9, 10 is arranged in its end region. By means of the only indicated eccentric 14, the position of the grinding wheel 9, 10 are changed in the horizontal direction; ie, the distance a or b between the pivot axis C and D of the holder 5, 6 to the rotation axis A and B of the grinding wheel 9, 10 can be slightly changed. The displacement in the horizontal direction H produced by the eccentric 14 is entered with ei or with β 2 . If the two eccentrics of the two holders 5, 6 are set in the opposite direction when viewed in the direction of the horizontal H, a distance in the horizontal direction H, which amounts to the sum of ei and e 2 , results at the grinding wheels 9, 10. Furthermore, it is provided that the entire grinding device 1 can pivot about an axis E, which extends in the vertical direction V. The pivoting angle to the longitudinal axis (perpendicular to the pivot axis C, D and in this case pointing in the horizontal direction H), is marked with α and here is 90 °. The pivot point E is located between the two grinding wheels 9, 10th
In Fig. 4 ist zu sehen, dass angestrebt wird, die beiden Schleifscheiben 9, 10 möglichst nahe aneinander zu platzieren. Die Schleifscheiben 9, 10 sind auf je einer Schleifscheibenaufnahme 15 und 16 aufgenommen. Die Fixierung der Schleifscheiben 9, 10 erfolgt mittels eines Befestigungsrings 17 bzw. 18. Zwischen den beiden Befestigungsringen 7, 18 befindet sich nur ein geringer Spalt. Demgemäß liegt ein geringstmöglicher Abstand zwischen den beiden Schleifscheiben 9, 10 vor, der nur durch die Breite der Befestigungsringe 17, 18 sowie durch einen geringen Freiraum zwischen denselben begrenzt ist. In Fig. 4 it can be seen that the aim is to place the two grinding wheels 9, 10 as close to each other as possible. The grinding wheels 9, 10 are each received on a grinding wheel receiving 15 and 16. The fixing of the grinding wheels 9, 10 takes place by means of a fastening ring 17 or 18. Between the two fastening rings 7, 18 there is only a small gap. Accordingly, there is a minimum distance between the two grinding wheels 9, 10, which is limited only by the width of the mounting rings 17, 18 and by a small clearance between them.
Insbesondere, wenn unter einem Winkel α zwischen Null und 90° geschliffen wird (bevorzugt zwischen 45° und 90°), schleifen die beiden Schleifscheiben 9, 10 hintereinander mit jeweils separaten Kontaktzonen zum Produkt 2. In particular, when grinding at an angle α between zero and 90 ° (preferably between 45 ° and 90 °), the two grinding wheels 9, 10 in succession grind each with separate contact zones to the product. 2
Werden die beiden (oder die mehreren) Schleifscheiben mit unterschiedlicher Körnung und/oder Struktur ausgeführt, können auch in vorteilhafter Weise zwei Arbeitsgänge zeitlich parallel durchgeführt werden. So kann die Schleifscheibe mit größerem/gröberem Korn zunächst einen Schruppschleifarbeitsgang durchführen, auf den ein Schlichtarbeitsgang folgt, der von der Schleifscheibe mit feinerem Korn ausgeführt wird. If the two (or more) grinding wheels are made with different grain size and / or structure, two operations can also be carried out in parallel in an advantageous manner. Thus, the larger / coarser grit wheel may first perform a rough grinding operation followed by a finishing operation performed by the finer grit wheel.
Bevorzugt vorgesehen ist der Direktantrieb der Schleifscheibe, die quasi auf der Antriebswelle des (elektrischen oder hydraulischen) Antriebsmotors montiert ist. Es kann aber auch vorgesehen werden, dass der Antrieb über Getriebe, Keilriemen, Spindeln usw. indirekt erfolgt. Preferably provided is the direct drive of the grinding wheel, which is mounted on the drive shaft of the (electric or hydraulic) drive motor, as it were. But it can also be provided that the drive via transmission, V-belt, spindles, etc. takes place indirectly.
In diesem Zusammenhang sei angemerkt, dass bevorzugt für jedes Schleifaggregat eine Schleifeinheit mit einem eigenen Antriebsmotor vorgesehen ist. Wird die genannte indirekte Antriebsweise vorgesehen, ist es auch denkbar, dass ein einziger Antriebsmotor die mindestens zwei Schleifscheiben antreibt. In this context, it should be noted that a grinding unit with its own drive motor is preferably provided for each grinding unit. If the said indirect drive mode is provided, it is also conceivable that a single drive motor drives the at least two grinding wheels.
Soll eine Fehlerschleifoperation oder eine andere spezielle Schleifoperation ausgeführt werden, kann vorgesehen werden, dass nur eine einzige Schleifscheibe zum Einsatz kommt. If a fault-grinding operation or another special grinding operation is to be carried out, it can be provided that only a single grinding wheel is used.
Jede der Schleifeinheiten 7, 8 kann mit mehr als einer Schleifscheibe 9, 10 bestückt sein. Each of the grinding units 7, 8 can be equipped with more than one grinding wheel 9, 10.
Bezugszeichenliste: LIST OF REFERENCE NUMBERS
1 Schleifvorrichtung 1 grinding device
2 metallisches Produkt (Bramme, Knüppel, Block)  2 metallic product (slab, billet, block)
3 Schleifaggregat  3 sanding unit
4 Schleifaggregat  4 sanding unit
5 Halterung (Pendelkonsole)  5 bracket (pendulum bracket)
6 Halterung (Pendelkonsole)  6 bracket (pendulum bracket)
7 Schleifeinheit  7 grinding unit
8 Schleifeinheit  8 grinding unit
9 Schleifscheibe  9 grinding wheel
10 Schleifscheibe  10 grinding wheel
11 Antriebsmotor  11 drive motor
12 Antriebsmotor  12 drive motor
13 Mittel zur Einstellung des Abstands (Exzenter)  13 means for adjusting the distance (eccentric)
14 Belastungseinrichtung (Schleifdruck-Zylinder-Kolben-System) 14 loading device (grinding pressure cylinder-piston system)
15 Schleifscheibenaufnahme 15 grinding wheel holder
16 Schleifscheibenaufnahme  16 grinding wheel holder
17 Befestigungsring  17 fixing ring
18 Befestigungsring  18 mounting ring
19 Gegengewicht  19 counterweight
Drehachse der Schleifscheibe Rotary axis of the grinding wheel
Drehachse der Schleifscheibe  Rotary axis of the grinding wheel
Schwenkachse der Halterung  Swivel axis of the bracket
Schwenkachse der Halterung E Schwenkachse der Schleifvorrichtung Swivel axis of the bracket E pivot axis of the grinding device
G Bewegungsrichtung des metallischen Produkts α Winkel  G Movement direction of the metallic product α angle
a Abstand a distance
b Abstand b distance
ei Exzentrizität an eccentricity
β2 Exzentrizität β2 eccentricity
F Andruckkraft  F contact pressure
H horizontale Richtung  H horizontal direction
V vertikale Richtung  V vertical direction

Claims

Patentansprüche claims
1. Schleifvorrichtung (1 ) zum Schleifen eines metallischen Produkts (2), insbesondere einer stranggegossenen Bramme, eines Knüppels oder eines Blocks, dadurch gekennzeichnet, dass die Schleifvorrichtung (1 ) mindestens zwei Schleifaggregate (3, 4) aufweist, wobei jedes Schleifaggregat (3, 4) eine Halterung (5, 6) für eine Schleifeinheit (7, 8) aufweist, wobei eine Schleifeinheit mindestens eine angetriebene Schleifscheibe (9, 10) aufweist und wobei die Schleifscheiben (9, 10) so angeordnet sind, dass ihre Drehachsen (A, B) parallel zueinander verlaufen. 1. Grinding device (1) for grinding a metallic product (2), in particular a continuously cast slab, a billet or a block, characterized in that the grinding device (1) at least two grinding units (3, 4), each grinding unit (3 4) comprises a holder (5, 6) for a grinding unit (7, 8), wherein a grinding unit has at least one driven grinding wheel (9, 10) and wherein the grinding wheels (9, 10) are arranged such that their axes of rotation ( A, B) are parallel to each other.
2. Schleifvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass jede Halterung (5, 6) schwenkbar um eine Achse (C, D) gelagert ist, die parallel zur Drehachse (A, B) der Schleifscheibe (9, 10) ist und zu dieser einen Abstand (a, b) aufweist. 2. Grinding device according to claim 1, characterized in that each holder (5, 6) is pivotally mounted about an axis (C, D) which is parallel to the axis of rotation (A, B) of the grinding wheel (9, 10) and to this a distance (a, b).
3. Schleifvorrichtung nach Anspruch 2, dadurch gekennzeichnet, dass Mittel (13) vorhanden sind, mit denen der Abstand (a, b) zwischen der Schwenkachse (C, D) der Halterung (5, 6) der Drehachse (A, B) der Schleifscheibe (9, 10) eingestellt werden kann. 3. Grinding device according to claim 2, characterized in that means (13) are provided, with which the distance (a, b) between the pivot axis (C, D) of the holder (5, 6) of the axis of rotation (A, B) of Grinding wheel (9, 10) can be adjusted.
4. Schleifvorrichtung nach Anspruch 3, dadurch gekennzeichnet, dass die Mittel (13) zur Einstellung des Abstands (a, b) einen Exzenter umfassen. 4. Grinding device according to claim 3, characterized in that the means (13) for adjusting the distance (a, b) comprise an eccentric.
5. Schleifvorrichtung nach Anspruch 1 , dadurch gekennzeichnet, dass jede Halterung (5, 6) eine Linearführung umfasst, mit der die Schleifscheibe (9, 10) senkrecht zur Drehachse (A, B) der Schleifscheibe (8, 10) verschoben werden kann. 5. Grinding device according to claim 1, characterized in that each holder (5, 6) comprises a linear guide with which the grinding wheel (9, 10) perpendicular to the axis of rotation (A, B) of the grinding wheel (8, 10) can be moved.
6. Schleifvorrichtung nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass jedes Schleifaggregat (3, 4) eine Belastungseinrichtung (14) zur Aufbringung einer definierten Andruckkraft (F) der Schleifscheibe (9, 10) auf das metallische Produkt (2) aufweist, wobei die Belastungseinrichtung (14) insbesondere ein Schleifdruck-Zylinder-Kolben-System umfasst. 6. Grinding device according to one of claims 1 to 5, characterized in that each grinding unit (3, 4) has a loading device (14) for applying a defined pressure force (F) of the grinding wheel (9, 10) on the metallic product (2) wherein the loading device (14) comprises in particular a grinding pressure cylinder-piston system.
7. Schleifvorrichtung nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, dass die Schleifaggregate (3, 4) gemeinsam um eine Achse (E) schwenkbar sind, die senkrecht zur Drehachse (A, B) der Schleifscheiben (9, 10) und vertikal angeordnet ist, wobei die Schwenkachse (E) bevorzugt im Bereich der Schleifscheiben (9, 10) liegt, insbesondere zwischen den Schleifscheiben (9, 10) der beiden Schleifaggregate (3, 4). 7. Grinding device according to one of claims 1 to 6, characterized in that the grinding units (3, 4) are pivotable together about an axis (E) perpendicular to the axis of rotation (A, B) of the grinding wheels (9, 10) and vertically is arranged, wherein the pivot axis (E) preferably in the region of the grinding wheels (9, 10), in particular between the grinding wheels (9, 10) of the two grinding units (3, 4).
8. Schleifvorrichtung nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, dass die Schleifscheiben (9, 10) der Schleifaggregate (3, 4) unmittelbar nebeneinander angeordnet sind. 8. Grinding device according to one of claims 1 to 7, characterized in that the grinding wheels (9, 10) of the grinding units (3, 4) are arranged directly adjacent to each other.
9. Schleifvorrichtung nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass die Schleifscheiben (9, 10) der Schleifaggregate (3, 4) unterschiedliche Körnung und/oder Struktur aufweisen. 9. Grinding device according to one of claims 1 to 8, characterized in that the grinding wheels (9, 10) of the grinding units (3, 4) have different grain size and / or structure.
10. Schleifvorrichtung nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass die Schleifscheibe (9, 10) von dem Antriebsmotor (1 , 12) ohne Zwischenschaltung eines Getriebes oder sonstiger Elemente direkt angetrieben wird. 10. Grinding device according to one of claims 1 to 9, characterized in that the grinding wheel (9, 10) of the drive motor (1, 12) is driven directly without the interposition of a transmission or other elements.
EP11726359.0A 2010-07-19 2011-06-18 Polishing device for polishing a metal product Not-in-force EP2595779B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102010027561A DE102010027561A1 (en) 2010-07-19 2010-07-19 Grinding device for grinding a metallic product
PCT/EP2011/003030 WO2012019668A1 (en) 2010-07-19 2011-06-18 Polishing device for polishing a metal product

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EP2595779A1 true EP2595779A1 (en) 2013-05-29
EP2595779B1 EP2595779B1 (en) 2014-04-23

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JP (1) JP5911486B2 (en)
KR (1) KR20130092427A (en)
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BR (1) BR112013001405A8 (en)
CA (1) CA2805698A1 (en)
DE (1) DE102010027561A1 (en)
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RU2013106776A (en) 2014-08-27
BR112013001405A8 (en) 2016-10-11
UA106546C2 (en) 2014-09-10
TWI496657B (en) 2015-08-21
MX339654B (en) 2016-06-02
CN202174477U (en) 2012-03-28
KR20130092427A (en) 2013-08-20
US9248540B2 (en) 2016-02-02
BR112013001405A2 (en) 2016-05-24
JP5911486B2 (en) 2016-04-27
ES2467991T3 (en) 2014-06-13
EP2595779B1 (en) 2014-04-23
WO2012019668A1 (en) 2012-02-16
MX2013000612A (en) 2013-03-20
CA2805698A1 (en) 2012-02-16
TW201204508A (en) 2012-02-01
US20130143475A1 (en) 2013-06-06
CN103025485A (en) 2013-04-03
JP2013530847A (en) 2013-08-01
DE102010027561A1 (en) 2012-01-19

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