EP2251107A1 - Method for setting the position of a roller in a rolling mill stand of a rolling mill and system comprising a rolling mill and a calibrating stand for carrying out the method - Google Patents

Method for setting the position of a roller in a rolling mill stand of a rolling mill and system comprising a rolling mill and a calibrating stand for carrying out the method Download PDF

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Publication number
EP2251107A1
EP2251107A1 EP10003812A EP10003812A EP2251107A1 EP 2251107 A1 EP2251107 A1 EP 2251107A1 EP 10003812 A EP10003812 A EP 10003812A EP 10003812 A EP10003812 A EP 10003812A EP 2251107 A1 EP2251107 A1 EP 2251107A1
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EP
European Patent Office
Prior art keywords
stand
roller
rolling mill
rolling
calibration
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Granted
Application number
EP10003812A
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German (de)
French (fr)
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EP2251107B1 (en
Inventor
Matthias Terhart
Jovo Subanovic
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SMS Group GmbH
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SMS Meer GmbH
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Publication of EP2251107A1 publication Critical patent/EP2251107A1/en
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B38/00—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product
    • B21B38/10—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring roll-gap, e.g. pass indicators
    • B21B38/105—Calibrating or presetting roll-gap
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/16—Adjusting or positioning rolls
    • B21B31/20—Adjusting or positioning rolls by moving rolls perpendicularly to roll axis
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B13/00—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
    • B21B13/08—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process
    • B21B13/10—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane
    • B21B13/103—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with differently-directed roll axes, e.g. for the so-called "universal" rolling process all axes being arranged in one plane for rolling bars, rods or wire
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/02—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length
    • B21B17/04—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling with mandrel, i.e. the mandrel rod contacts the rolled tube over the rod length in a continuous process
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B17/00—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling
    • B21B17/14—Tube-rolling by rollers of which the axes are arranged essentially perpendicular to the axis of the work, e.g. "axial" tube-rolling without mandrel, e.g. stretch-reducing mills
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/22—Aligning on rolling axis, e.g. of roll calibers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B23/00—Tube-rolling not restricted to methods provided for in only one of groups B21B17/00, B21B19/00, B21B21/00, e.g. combined processes planetary tube rolling, auxiliary arrangements, e.g. lubricating, special tube blanks, continuous casting combined with tube rolling

Definitions

  • the invention relates to a method for adjusting the position of at least one roller in a rolling mill stand of a rolling mill, wherein the rolling mill stand at least one rolling mill with a number of rolls receives, each roll is arranged in a roll position, and wherein the roll positions acting on means for adjusting the rolls are present relative to the roll stand. Furthermore, the invention relates to a system consisting of a rolling mill and a calibration stand according to the preamble of patent claim 7.
  • rolling stands for rolling of tubes and rods rolling stands are used, in which a plurality of roller assemblies are present, each storing a roller. Several rollers are arranged around the rolling axis and comprise substantially the entire circumference of the rolling stock. The rollers together form the roller caliber. Rolling mills with such rolling stands are for example from DE 103 16 650 B3 , from the DE 10 2005 042 835 B3 , from the DE 103 07 199 B3 and from the DE 200 05 700 U1 known.
  • a preferred embodiment of the known rolling mills provides that the adjustment of the rolls and their rolling stands outside the machine (Roll mill stand) takes place and that then takes place after installation of the rolls including rolling stands only one roll adjustment in the machine.
  • Roll mill stand the machine
  • Each roller can be set separately in its rolling stand.
  • the stands are set outside the machine to a nominal size.
  • the machine is calibrated by a calibrator. It is advantageous if the same calibration device is used for calibrating the machine and for calibrating the roll stand adjusting device.
  • the invention is therefore based on the object to provide a method of the type mentioned, with which it is possible, in a simple and fast way to an accurate adjustment of the rollers to the desired (ideal) Caliber to arrive, so that the quality of the rolled product is optimal, and to propose a corresponding system consisting of a rolling mill and a calibration, with which the process can be operated.
  • a corresponding system consisting of a rolling mill and a calibration, with which the process can be operated.
  • the rollers are thereby used to produce a tube or a rod.
  • three rollers act together to encompass the substantial circumference of the rolling stock.
  • the rollers are advantageously free of mechanical coupling.
  • the caliber of the caliber according to step b) above is preferably measured optically.
  • the amount of force is advantageously chosen equal in the above step b) and in the above step d).
  • the proposed system consisting of a rolling mill and a calibration stand, wherein the rolling mill has at least one rolling mill stand for receiving rollers arranged in a roll stand, wherein the rolling stand comprises means for adjusting the rollers relative to the rolling mill stand and wherein the calibration stand for receiving at least one roll stand with his Roll adjustments and rollers is formed to carry out the method according to the invention, characterized in that the roller adjustment has at least one effective in the direction of adjustment defined system, which cooperates with a contact surface on the rolling mill stand and a contact surface on the calibration. The roller adjustment can thus be pressed against the defined system both in the calibration and after the installation of the rolling stand in the rolling mill stand of the rolling mill.
  • the calibration stand can be a rolling mill stand of conventional construction or a supporting frame equipped with the corresponding functional elements and suitable for receiving a roll stand or the like.
  • the calibration stand preferably has means for acting on the roll adjustment in order to press the contact of the roll in the setting direction with a force against the contact surface on the roll stand of the calibration stand.
  • the calibration stand may further comprise means, preferably optical means, for measuring the actual caliber of the roll in the rolling stand of the calibration stand.
  • rollers are provided which comprise the substantial circumference of the rolling stock.
  • the setting method according to the invention is particularly applicable in rolling mills, in which the roll adjustment is carried out as intended outside the machine or the rolling mill and the roll adjustment within the machine.
  • each roller is individually adjustable. There is preferably no mechanical coupling of the individual rollers.
  • the proposed procedure ensures a reproducible hiring the individual rollers in the mill stand. It is carried out according to a core of the invention, a mechanical fixation of the calibration position in the rolling stand, so that this position can be approached reproducible in the rolling mill regardless of the positioning of the rolling mill both in the setting (calibration) and in the machine (rolling mill stand).
  • Fig. 1 is a rolling mill stand 1 of a rolling mill shown schematically having a rolling mill 5 with three Walzenangna 6, 7 and 8, in each of which a roller 2, 3, 4 superimposed.
  • the rolling mill is a continuous rolling mill, a sizing mill or a stretch reducing mill.
  • the three rollers 2, 3, 4 comprise during rolling the essential circumference of a tube to be rolled 15.
  • the three rollers 2, 3, 4 together form the caliber 13, which gives the rolling stock the shape of the tube 15 during rolling.
  • a roll stand 10 is shown in fragmentary form in a calibration stand into which the roll stand 10 together with the installed roll 2, 3, 4 can be inserted.
  • the roller adjustment 6 (as the roller adjustments 7 and 8 alike) two systems 11, which can cooperate with corresponding contact surfaces 12 on the roll stand 10.
  • means not shown are provided, with which a force F in the registered direction can be exerted on the roller adjustment 6 to press the equipment 11 on the contact surfaces 12.
  • FIG. 3 The (calibration) position thus achieved is designated A.
  • the caliber 13 of the roller or the roller position z K is determined during calibration, for which optical measuring systems are particularly suitable.
  • FIGS. 4 and 5 clarified.
  • the calibration position A can be seen, in which the systems 11 abut against the corresponding contact surfaces 12 of the roll stand 10, while in Fig. 5 It can be seen that the roller 2 has been withdrawn in the setting direction by a deviation amount ⁇ z in order to achieve the ideal position z 0 .
  • the complete rolling stand 10 of the calibration stand is installed as a roll stand 5 in the rolling mill stand 1.
  • the force F is now in turn applied, in such a way that the equipment 11 of the roller stops 6, 7, 8 at corresponding contact surfaces 14 (s. Fig. 1 ) abut the rolling stand 5.
  • These bearing surfaces 14 are executed analogously to the contact surfaces 12 of the roll stand in the calibration.
  • the roller adjustments 6, 7, 8 together with rollers 2, 3, 4 are now retracted by the determined deviation ⁇ z in order to achieve the ideal position of the rollers 2, 3, 4.
  • Fig. 1 in which the position thus obtained is shown, it can be seen that accordingly the plants 11 have lifted off the contact surfaces 14 again.
  • the means 9 for adjusting the rollers in the machine can be designed as hydraulic or as electromechanical adjusting elements.
  • the adjustment of the rolls takes place outside the machine (of the rolling mill) in the calibration stand.
  • the position of the rollers is preferably optically detected.
  • a reference position 11 is approached with a defined force against the mechanical stop 12 in the calibration. In this position, the caliber is measured and recorded the deviation to the ideal caliber.
  • the reference position is approached with the same force via the roller adjustment and the position measuring system is calibrated in this position.
  • the measuring system receives the correction value previously determined in the calibration stand (deviation amount ⁇ z) for the optimum caliber position and sets the ideal caliber.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Control Of Metal Rolling (AREA)
  • Metal Rolling (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)

Abstract

The method involves arranging a roller frame (10) with rollers (2) in a calibration stand. Actual calibration of the rollers in calibration position (A) is measured. A deviation amount between the calibration position and a roller position in a setting direction is determined for achieving ideal roller position. Roller positioning units (6) are adjusted towards the direction around the amount. The operation of the roller in a rolling mill is begun from the ideal roller position of the positioning units and the rollers, where the frame is ready to operate by obtaining the ideal position. An independent claim is also included for a system for setting ideal position of the roller in the rolling mill stand.

Description

Verfahren zum Einstellen der Lage einer Walze in einem Walzwerkständer eines Walzwerks und System bestehend aus einem Walzwerk und einem Kalibrierstand zur Durchführung des VerfahrensMethod for adjusting the position of a roll in a rolling mill stand of a rolling mill and system consisting of a rolling mill and a calibration stand for carrying out the method

Die Erfindung betrifft ein Verfahren zum Einstellen der Lage mindestens einer Walze in einem Walzwerkständer eines Walzwerks, wobei der Walzwerkständer mindestens ein Walzgerüst mit einer Anzahl von Walzen aufnimmt, wobei jede Walze in einer Walzenanstellung angeordnet ist, und wobei die Walzenanstellungen beaufschlagende Mittel zur Anstellung der Walzen relativ zum Walzgerüst vorhanden sind. Des weiteren betrifft die Erfindung ein System bestehend aus einem Walzwerk und einem Kalibrierstand gemäß Oberbegriff des Patentanspruchs 7.The invention relates to a method for adjusting the position of at least one roller in a rolling mill stand of a rolling mill, wherein the rolling mill stand at least one rolling mill with a number of rolls receives, each roll is arranged in a roll position, and wherein the roll positions acting on means for adjusting the rolls are present relative to the roll stand. Furthermore, the invention relates to a system consisting of a rolling mill and a calibration stand according to the preamble of patent claim 7.

Zum Walzen von Rohren und Stäben werden Walzgerüste eingesetzt, in denen mehrere Walzenanordnungen vorhanden sind, die jeweils eine Walze lagern. Mehrere Walzen sind dabei um die Walzachse herum angeordnet und umfassen im wesentlichen den gesamten Umfang des Walzguts. Die Walzen bilden dabei zusammen das Walzenkaliber. Walzwerke mit derartigen Walzgerüsten sind beispielsweise aus der DE 103 16 650 B3 , aus der DE 10 2005 042 835 B3 , aus der DE 103 07 199 B3 und aus der DE 200 05 700 U1 bekannt.For rolling of tubes and rods rolling stands are used, in which a plurality of roller assemblies are present, each storing a roller. Several rollers are arranged around the rolling axis and comprise substantially the entire circumference of the rolling stock. The rollers together form the roller caliber. Rolling mills with such rolling stands are for example from DE 103 16 650 B3 , from the DE 10 2005 042 835 B3 , from the DE 103 07 199 B3 and from the DE 200 05 700 U1 known.

Eine bevorzugte Ausführung der bekannten Walzwerke sieht vor, dass die Einstellung der Walzen und ihrer Walzgerüste außerhalb der Maschine (Walzwerkständer) erfolgt und dass dann nach Einbau der Walzen samt Walzgerüsten nur noch eine Walzenanstellung in der Maschine stattfindet. Dabei kann jede Walze in ihrem Walzgerüst separat eingestellt werden.A preferred embodiment of the known rolling mills provides that the adjustment of the rolls and their rolling stands outside the machine (Roll mill stand) takes place and that then takes place after installation of the rolls including rolling stands only one roll adjustment in the machine. Each roller can be set separately in its rolling stand.

Bei Zweiwalzen-Systemen ist es bekannt, dass man beim Einstellen der Walzen die Walzen zusammenfährt, vorspannt und hierdurch das System eicht. Von der so gefundenen Position aus werden dann die definierten angestrebten Walzenspalte angefahren.In two-roll systems, it is known to collapse, bias and thereby calibrate the system as the rolls are adjusted. From the position thus found, the defined desired nips are approached.

Bei Dreiwalzen-Systemen ist es bekannt, dass die Walzgerüste außerhalb der Maschine auf ein Nennmaß eingestellt werden. Die Maschine wird durch eine Eichvorrichtung geeicht. Vorteilhaft ist es dabei, wenn die gleiche Eichvorrichtung zum Eichen der Maschine und zum Eichen der Walzgerüsteinstellvorrichtung genutzt wird.In three-roll systems, it is known that the stands are set outside the machine to a nominal size. The machine is calibrated by a calibrator. It is advantageous if the same calibration device is used for calibrating the machine and for calibrating the roll stand adjusting device.

Als nachteilig hat sich mit Blick auf die zuletzt beschriebene Vorgehensweise folgendes erwiesen: Die Umgebungsverhältnisse zwischen der Walzgerüsteinstellvorrichtung und der Maschine sind nicht identisch, da einerseits die gesamten Maßketten toleranzbehaftet sind und sich andererseits die Bedingungen ständig ändern können. Beispielsweise können Verschleiß oder Verschmutzung die Einstellung der Walzen auf das benötigte (ideale) Kaliber verfälschen. Liegt z. B. das Walzgerüst durch Schmutz in der Maschine etwas höher als in der Einstellvorrichtung, so ist die Walzenpositionierung um diesen Betrag fehlerhaft.The following has proven to be disadvantageous with regard to the procedure described last: The environmental conditions between the rolling stand setting device and the machine are not identical, since on the one hand the entire dimensional chains are subject to tolerances and on the other hand the conditions can constantly change. For example, wear or contamination can distort the setting of the rollers to the required (ideal) caliber. Is z. B. the rolling mill by dirt in the machine slightly higher than in the adjustment, the roll positioning is erroneous by this amount.

Die Folge sind Qualitätseinbußen am fertig gewalzten Produkt.The result is quality losses on the finished rolled product.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Verfahren der eingangs genannten Art zu schaffen, mit dem es möglich ist, auf einfachem und schnellem Wege zu einer genauen Einstellung der Walzen auf das gewünschte (ideale) Kaliber zu gelangen, so dass die Qualität des Walzprodukts optimal ist, sowie ein korrespondierendes System bestehend aus einem Walzwerk und einem Kalibrierstand vorzuschlagen, mit dem das Verfahren betrieben werden kann. Damit soll die Reproduzierbarkeit der Walzeneinstellung und der Walzenanstellung auch unter Berücksichtigung von Störgrößen (Verschleiß, Verschmutzung) gewährleistet werden.The invention is therefore based on the object to provide a method of the type mentioned, with which it is possible, in a simple and fast way to an accurate adjustment of the rollers to the desired (ideal) Caliber to arrive, so that the quality of the rolled product is optimal, and to propose a corresponding system consisting of a rolling mill and a calibration, with which the process can be operated. In order to ensure the reproducibility of the roll adjustment and the roller adjustment even taking into account disturbances (wear, contamination).

Diese Aufgabe wird erfindungsgemäß dadurch gelöst, dass das Verfahren die Schritte aufweist:

  1. a) Anordnung mindestens eines Walzgerüstes mit seinen Walzen in einem Kalibrierstand;
  2. b) Beaufschlagen der Walzenanstellung mit einer Kraft in einer Anstellrichtung, so dass die Walze mit einer definierten Anlage gegen eine Anlagefläche des Walzgerüstes des Kalibrierstandes drückt und Vermessen des tatsächlichen Kalibers der Walze in dieser Stellung;
  3. c) Bestimmung des Abweichbetrages in Anstellrichtung zwischen der Stellung gemäß Schritt und der Walzenlage zur Erzielung eines idealen Kalibers;
  4. d) Einbau des Walzgerüsts samt Walze aus dem Kalibrierstand in den Walzwerkständer des Walzwerks und Beaufschlagen der Walzenanstellung mit einer Kraft in Anstellrichtung, so dass die Walze mit einer definierten Anlage gegen eine Anlagefläche des in den Walzwerkständer des Walzwerks eingebauten Walzgerüstes drückt;
  5. e) Verstellen der Walzenanstellung entgegen der Anstellrichtung um den Abweichbetrag und Beginn des Walzbetriebs in dem Walzwerk mit der für das betriebsfertige Walzgerüst so gewonnenen Einstellung der Walzenanstellung und der Walze.
This object is achieved according to the invention by the method comprising the steps:
  1. a) arrangement of at least one rolling stand with its rollers in a calibration stand;
  2. b) applying the roller adjustment with a force in a Anstellrichtung so that the roller presses with a defined system against a contact surface of the rolling stand of the Kalibrierstandes and measuring the actual caliber of the roller in this position;
  3. c) determining the deviation amount in Anstellrichtung between the position in accordance with step and the roll position to achieve an ideal caliber;
  4. d) installation of the roll stand together with the roll from the calibration stand into the rolling mill stand of the rolling mill and applying the roll setting with a force in the setting direction, so that the roll presses against a contact surface of the roll stand installed in the rolling mill stand of the rolling mill with a defined abutment;
  5. e) adjusting the roller adjustment against the Anstellrichtung by the deviation amount and the beginning of the rolling operation in the rolling mill with the the ready-to-roll stand so gained adjustment of the roll adjustment and the roller.

Vorzugsweise werden die Walzen dabei zur Fertigung eines Rohrs oder eines Stabes verwendet. Besonders bevorzugt wirken dabei drei Walzen zusammen, um den wesentlichen Umfang des Walzguts zu umfassen. Die Walzen sind dabei mit Vorteil frei von einer mechanischen Kopplung.Preferably, the rollers are thereby used to produce a tube or a rod. Particularly preferably, three rollers act together to encompass the substantial circumference of the rolling stock. The rollers are advantageously free of mechanical coupling.

Das Vermessen des Kalibers gemäß obigem Schritt b) erfolgt bevorzugt auf optische Weise.The caliber of the caliber according to step b) above is preferably measured optically.

Der Betrag der Kraft wird vorteilhaft bei obigem Schritt b) und bei obigem Schritt d) gleich groß gewählt.The amount of force is advantageously chosen equal in the above step b) and in the above step d).

Das vorgeschlagene System bestehend aus einem Walzwerk und einem Kalibrierstand, wobei das Walzwerk mindestens einen Walzwerkständer zur Aufnahme von in einem Walzgerüst angeordneten Walzen aufweist, wobei das Walzgerüst Mittel zur Anstellung der Walzen relativ zum Walzwerkständer aufweist und wobei der Kalibrierstand zur Aufnahme mindestens eines Walzgerüsts mit seinen Walzenanstellungen und Walzen ausgebildet ist, zur Durchführung des erfindungsgemäßen Verfahrens, zeichnet sich dadurch aus, dass die Walzenanstellung mindestens eine in Anstellrichtung wirksame definierte Anlage aufweist, die mit einer Anlagefläche am Walzwerkständer und einer Anlagefläche am Kalibrierstand zusammenwirkt. Die Walzenanstellung kann damit sowohl im Kalibrierstand als auch nach dem Einbau des Walzgerüsts in den Walzwerkständer des Walzwerks gegen die definierte Anlage gedrückt werden. Der Kalibrierstand kann ein Walzwerkständer üblicher Bauweise sein oder ein mit den entsprechenden Funktionselementen ausgerüsteter, zur Aufnahme eines Walzgerüsts geeigneter Tragrahmen oder dergleichen.The proposed system consisting of a rolling mill and a calibration stand, wherein the rolling mill has at least one rolling mill stand for receiving rollers arranged in a roll stand, wherein the rolling stand comprises means for adjusting the rollers relative to the rolling mill stand and wherein the calibration stand for receiving at least one roll stand with his Roll adjustments and rollers is formed to carry out the method according to the invention, characterized in that the roller adjustment has at least one effective in the direction of adjustment defined system, which cooperates with a contact surface on the rolling mill stand and a contact surface on the calibration. The roller adjustment can thus be pressed against the defined system both in the calibration and after the installation of the rolling stand in the rolling mill stand of the rolling mill. The calibration stand can be a rolling mill stand of conventional construction or a supporting frame equipped with the corresponding functional elements and suitable for receiving a roll stand or the like.

Der Kalibierstand hat dabei bevorzugt Mittel zur Beaufschlagung der Walzenanstellung, um die Anlage der Walze in Anstellrichtung mit einer Kraft gegen die Anlagefläche am Walzgerüst des Kalibrierstands zu drücken.The calibration stand preferably has means for acting on the roll adjustment in order to press the contact of the roll in the setting direction with a force against the contact surface on the roll stand of the calibration stand.

Der Kalibierstand kann weiterhin Mittel, vorzugsweise optische Mittel, zum Vermessen des tatsächlichen Kalibers der Walze im Walzgerüst des Kalibrierstands aufweisen.The calibration stand may further comprise means, preferably optical means, for measuring the actual caliber of the roll in the rolling stand of the calibration stand.

Vorzugsweise sind drei Walzen vorgesehen, die den wesentlichen Umfang des Walzguts umfassen.Preferably, three rollers are provided which comprise the substantial circumference of the rolling stock.

Das erfindungsgemäße Einstellverfahren ist besonders in Walzwerken anwendbar, bei denen die Walzeneinstellung bestimmungsgemäß außerhalb der Maschine bzw. des Walzwerks und die Walzenanstellung innerhalb der Maschine erfolgt. Hierbei ist bevorzugt jede Walze einzeln einstellbar. Es besteht dabei vorzugsweise keine mechanische Kopplung der einzelnen Walzen.The setting method according to the invention is particularly applicable in rolling mills, in which the roll adjustment is carried out as intended outside the machine or the rolling mill and the roll adjustment within the machine. Here, preferably, each roller is individually adjustable. There is preferably no mechanical coupling of the individual rollers.

In vorteilhafter Weise gewährleistet das vorgeschlagene Vorgehen ein reproduzierbares Anstellen der einzelnen Walzen im Walzwerkständer. Es erfolgt gemäß einem Kern der Erfindung eine mechanische Fixierung der Eichposition im Walzgerüst, so dass diese Position unabhängig von der Positionierung des Walzgerüsts sowohl in der Einstellvorrichtung (Kalibrierstand) als auch in der Maschine (Walzwerkständer) im Walzwerk reproduzierbar angefahren werden kann.Advantageously, the proposed procedure ensures a reproducible hiring the individual rollers in the mill stand. It is carried out according to a core of the invention, a mechanical fixation of the calibration position in the rolling stand, so that this position can be approached reproducible in the rolling mill regardless of the positioning of the rolling mill both in the setting (calibration) and in the machine (rolling mill stand).

Demgemäß ergibt sich der Vorteil, dass unabhängig von äußeren Einflüssen immer die exakte Kalibereinstellung in der Maschine sichergestellt ist.Accordingly, there is the advantage that regardless of external influences, the exact caliber setting is always ensured in the machine.

In der Zeichnung ist ein Ausführungsbeispiel der Erfindung dargestellt. Es zeigen:

Fig. 1
schematisch einen Walzwerkständer mit darin angeordnetem Walzgerüst in Walzrichtung betrachtet, in dem mit drei Walzen ein Rohr gewalzt wird;
Fig. 2
von einem weiter nicht gezeigten Kalibrierstand einen Ausschnitt eines Walzgerüsts mit Walzenanstellung in der Ausgangsposition;
Fig. 3
den linken oberen Bereich der Darstellung gemäß Fig. 2 in vergrößerter Ansicht, wobei die Walzenanstellung gegen den Anschlag im Walzgerüst angedrückt ist;
Fig. 4
drei zusammenwirkende Walzen, in Walzrichtung betrachtet, in Kalibrierstellung; und
Fig. 5
die drei zusammenwirkenden Walzen gemäß Fig. 4, in Walzrichtung betrachtet, in zum Walzen eingestellter Position.
In the drawing, an embodiment of the invention is shown. Show it:
Fig. 1
schematically considered a rolling mill stand with rolling stand arranged therein in the rolling direction, in which a tube is rolled with three rollers;
Fig. 2
from a calibration, not further shown, a section of a roll stand with roll adjustment in the starting position;
Fig. 3
according to the upper left area of the illustration Fig. 2 in an enlarged view, wherein the roller adjustment is pressed against the stop in the rolling stand;
Fig. 4
three cooperating rollers, viewed in the rolling direction, in calibration position; and
Fig. 5
the three cooperating rolls according to Fig. 4 , as viewed in the rolling direction, in rolling set position.

In Fig. 1 ist von einem Walzwerk ein Walzwerkständer 1 schematisch dargestellt, der ein Walzgerüst 5 mit drei Walzenanstellungen 6, 7 und 8 aufweist, in denen jeweils eine Walze 2, 3, 4 lagert. Bei dem Walzwerk handelt es sich um ein Kontiwalzwerk, um ein Maßwalzwerk oder um ein Streckreduzierwalzwerk. Die drei Walzen 2, 3, 4 umfassen beim Walzen den wesentlichen Umfang eines zu walzenden Rohrs 15. Die drei Walzen 2, 3, 4 bilden zusammen das Kaliber 13, das dem Walzgut beim Walzen die Form des Rohrs 15 gibt.In Fig. 1 is a rolling mill stand 1 of a rolling mill shown schematically having a rolling mill 5 with three Walzenanstellungen 6, 7 and 8, in each of which a roller 2, 3, 4 superimposed. The rolling mill is a continuous rolling mill, a sizing mill or a stretch reducing mill. The three rollers 2, 3, 4 comprise during rolling the essential circumference of a tube to be rolled 15. The three rollers 2, 3, 4 together form the caliber 13, which gives the rolling stock the shape of the tube 15 during rolling.

Damit dem Rohr 15 durch das Walzen die korrekte Geometrie aufgeprägt wird, müssen die drei Walzen in eine Anstellrichtung z genau positioniert werden. Die ideale Lage der Walzen 2, 3, 4 in Anstellrichtung ist mit z0 bezeichnet. Die Anstellung der Walzen 2, 3, 4 in ihren Walzenanstellungen 6, 7, 8 erfolgt durch Mittel 9, von denen nur eines schematisch dargestellt ist.So that the tube 15 is impressed by the correct geometry of the rolls, the three rollers must be accurately positioned in a Anstellrichtung z. The ideal position of the rollers 2, 3, 4 in the adjustment direction is denoted by z 0 . The employment of the rollers 2, 3, 4 in their Walzenanstellungen 6, 7, 8 carried by means 9, of which only one is shown schematically.

Zum reproduzierbaren und genauen Auffinden der richtigen Walzenlage z0 wird wie folgt vorgegangen: In Fig. 2 ist ein Walzgerüst 10 in einem Kalibrierstand ausschnittsweise dargestellt, in den das Walzgerüst 10 samt eingebauter Walze 2, 3, 4 eingesetzt werden kann. Wie in Fig. 2 gesehen werden kann, weist die Walzenanstellung 6 (wie die Walzenanstellungen 7 und 8 gleichermaßen) zwei Anlagen 11 auf, die mit korrespondierenden Anlageflächen 12 am Walzgerüst 10 zusammenwirken können. Ferner sind nicht dargestellte Mittel vorhanden, mit denen auf die Walzenanstellung 6 eine Kraft F in der eingetragenen Richtung ausgeübt werden kann, um die Anlagen 11 auf die Anlageflächen 12 zu drücken.For the reproducible and accurate finding of the correct roll position z 0 , the procedure is as follows: In Fig. 2 a roll stand 10 is shown in fragmentary form in a calibration stand into which the roll stand 10 together with the installed roll 2, 3, 4 can be inserted. As in Fig. 2 can be seen, the roller adjustment 6 (as the roller adjustments 7 and 8 alike) two systems 11, which can cooperate with corresponding contact surfaces 12 on the roll stand 10. Further, means not shown are provided, with which a force F in the registered direction can be exerted on the roller adjustment 6 to press the equipment 11 on the contact surfaces 12.

Dies ist in Fig. 3 gezeigt. Die so erreichte (Kalibrier-)Stellung ist mit A bezeichnet. In dieser Stellung A wird das Kaliber 13 der Walze bzw. wird die Walzenlage zK beim Kalibrieren ermittelt, wofür sich optische Messsysteme besonders eignen. Nunmehr kann alleine aufgrund der gemessenen geometrischen Daten leicht ermittelt werden, um welchen Betrag Δz die Walze entgegen der Anstellrichtung aus der Position, bei der die Anlage 11 die Anlagefläche 12 kontaktiert, zurückgezogen werden muss, um die ideale Walzenlage z0 zu erreichen. Dies ist in den Figuren 4 und 5 verdeutlicht. In Fig. 4 ist die Kalibrierstellung A zu sehen, bei der die Anlagen 11 an den korrespondierenden Anlagenflächen 12 des Walzgerüstes 10 anliegen, während in Fig. 5 zu erkennen ist, dass die Walze 2 um einen Abweichbetrag Δz in Anstellrichtung zurückgezogen wurde, um die ideale Lage z0 zu erreichen.This is in Fig. 3 shown. The (calibration) position thus achieved is designated A. In this position A, the caliber 13 of the roller or the roller position z K is determined during calibration, for which optical measuring systems are particularly suitable. On the basis of the measured geometrical data alone, it can easily be ascertained by what amount Δz the roller has to be retracted counter to the setting direction from the position at which the unit 11 contacts the contact surface 12, in order to achieve the ideal roller position z 0 . This is in the FIGS. 4 and 5 clarified. In Fig. 4 the calibration position A can be seen, in which the systems 11 abut against the corresponding contact surfaces 12 of the roll stand 10, while in Fig. 5 It can be seen that the roller 2 has been withdrawn in the setting direction by a deviation amount Δz in order to achieve the ideal position z 0 .

Zur Übertragung dieser idealen Position in die Maschine, d. h. in den Walzwerkständer 1 des in Fig. 1 gezeigten Walzwerks, wird das komplette Walzgerüst 10 des Kalibrierstandes als Walzgerüst 5 in den Walzwerkständer 1 eingebaut. Mit den Mitteln 9 zur Anstellung der Walze wird nunmehr wiederum die Kraft F aufgebracht, und zwar in der Weise, dass die Anlagen 11 der Walzenanstellungen 6, 7, 8 an korrespondierenden Anlageflächen 14 (s. Fig. 1) am Walzgerüst 5 anliegen. Diese Anlageflächen 14 sind analog zu den Anlageflächen 12 des Walzgerüsts im Kalibrierstand ausgeführt. Aus dieser Stellung werden nun die Walzenanstellungen 6, 7, 8 samt Walzen 2, 3, 4 um den ermittelten Abweichbetrag Δz zurückgezogen, um die ideale Lage der Walzen 2, 3, 4 zu erreichen. In Fig. 1, in der die so gewonnene Stellung dargestellt ist, kann gesehen werden, dass sich demgemäß die Anlagen 11 von den Anlageflächen 14 wieder abgehoben haben.To transfer this ideal position in the machine, ie in the rolling mill stand 1 of in Fig. 1 shown rolling mill, the complete rolling stand 10 of the calibration stand is installed as a roll stand 5 in the rolling mill stand 1. With the means 9 for adjusting the roller, the force F is now in turn applied, in such a way that the equipment 11 of the roller stops 6, 7, 8 at corresponding contact surfaces 14 (s. Fig. 1 ) abut the rolling stand 5. These bearing surfaces 14 are executed analogously to the contact surfaces 12 of the roll stand in the calibration. From this position, the roller adjustments 6, 7, 8 together with rollers 2, 3, 4 are now retracted by the determined deviation Δz in order to achieve the ideal position of the rollers 2, 3, 4. In Fig. 1 , in which the position thus obtained is shown, it can be seen that accordingly the plants 11 have lifted off the contact surfaces 14 again.

Die Mittel 9 zur Anstellung der Walzen in der Maschine können als hydraulische oder als elektromechanische Verstellelemente ausgeführt sein.The means 9 for adjusting the rollers in the machine can be designed as hydraulic or as electromechanical adjusting elements.

Die Einstellung der Walzen erfolgt außerhalb der Maschine (des Walzwerks) in dem Kalibrierstand. Die Position der Walzen wird bevorzugt optisch erfasst. Eine Referenzposition 11 wird mit definierter Kraft gegen den mechanischen Anschlag 12 im Kalibrierstand angefahren. In dieser Position wird das Kaliber vermessen und die Abweichung zum idealen Kaliber erfasst.The adjustment of the rolls takes place outside the machine (of the rolling mill) in the calibration stand. The position of the rollers is preferably optically detected. A reference position 11 is approached with a defined force against the mechanical stop 12 in the calibration. In this position, the caliber is measured and recorded the deviation to the ideal caliber.

In der Maschine wird die Referenzposition mit gleicher Kraft über die Walzenverstellung angefahren und das Wegmesssystem wird in dieser Position geeicht. Das Messsystem erhält den zuvor im Kalibrierstand ermittelten Korrekturwert (Abweichbetrag Δz) für die optimale Kaliberposition und stellt darüber das ideale Kaliber ein.In the machine, the reference position is approached with the same force via the roller adjustment and the position measuring system is calibrated in this position. The measuring system receives the correction value previously determined in the calibration stand (deviation amount Δz) for the optimum caliber position and sets the ideal caliber.

Damit ist die Einstellung des Walzkalibers, unabhängig von der Position des Walzgerüsts in der Maschine und von Fehlern im Wegmesssystem, immer reproduzierbar.Thus, the setting of the rolling caliber, regardless of the position of the rolling stand in the machine and errors in the displacement measuring system, is always reproducible.

Bezugszeichenliste:LIST OF REFERENCE NUMBERS

11
WalzwerksständerMill stand
22
Walzeroller
33
Walzeroller
44
Walzeroller
55
Walzgerüstrolling mill
66
Walzenanstellungroll adjustment
77
Walzenanstellungroll adjustment
88th
Walzenanstellungroll adjustment
99
Mittel zur Anstellung der WalzeMeans for adjusting the roller
1010
Walzgerüst (im Kalibrierstand; nach dem Einbau in das Walzwerk Walzgerüst 5)Rolling stand (in the calibration stand, after installation in the rolling mill stand 5)
1111
Anlageinvestment
1212
Anlageflächecontact surface
1313
Kalibercaliber
1414
Anlageflächecontact surface
1515
Walzgut (Rohr)Rolling stock (pipe)
AA
Kalibrierstellungcalibrating
FF
Kraftforce
zz
Anstellrichtungsetting direction
z0 z 0
ideale Walzenlageideal roll position
zK z K
Walzenlage beim KalibrierenRoll position during calibration
ΔzAz
Abweichbetrag in AnstellrichtungDeviation in adjustment direction

Claims (9)

Verfahren zum Einstellen der Lage (z0) mindestens einer Walze (2, 3, 4) in einem Walzwerkständer (1) eines Walzwerks, wobei der Walzwerkständer (1) mindestens ein Walzgerüst (5) mit einer Anzahl von Walzen (2, 3, 4) aufnimmt, wobei jede Walze (2, 3, 4) in einer Walzenanstellung (6, 7, 8) angeordnet ist, und wobei die Walzenanstellungen (6, 7, 8) beaufschlagende Mittel (9) zur Anstellung der Walzen (2, 3, 4) relativ zum Walzgerüst (5) vorhanden sind,
dadurch gekennzeichnet,
dass das Verfahren die Schritte aufweist: a) Anordnung mindestens eines Walzgerüstes (10) mit seinen Walzen (2, 3, 4) in einem Kalibrierstand; b) Beaufschlagen der Walzenanstellung (6, 7, 8) mit einer Kraft (F) in einer Anstellrichtung (z), so dass die Walze (2, 3, 4) mit einer definierten Anlage (11) gegen eine Anlagefläche (12) des Walzgerüstes (10) des Kalibrierstandes drückt und Vermessen des tatsächlichen Kalibers (13) der Walze (2, 3, 4) in dieser Stellung (A); c) Bestimmung des Abweichbetrages (Δz) in Anstellrichtung (z) zwischen der Stellung (A) gemäß Schritt b) und der Walzenlage zur Erzielung eines idealen Kalibers (z0); d) Einbau des Walzgerüsts samt Walze (2, 3, 4) aus dem Kalibrierstand in den Walzwerkständer (1) des Walzwerks und Beaufschlagen der Walzenanstellung (6, 7, 8) mit einer Kraft (F) in Anstellrichtung (z), so dass die Walze (2, 3, 4) mit einer definierten Anlage (11) gegen eine Anlagefläche (14) des in den Walzwerkständer (1) des Walzwerks eingebauten Walzgerüstes (5) drückt; e) Verstellen der Walzenanstellung (6, 7, 8) entgegen der Anstellrichtung (z) um den Abweichbetrag (Δz) und Beginn des Walzbetriebs in dem Walzwerk mit der für das betriebsfertige Walzgerüst (5) so gewonnenen Einstellung (z0) der Walzenanstellung (6, 7, 8) und der Walze (2, 3, 4). Method for adjusting the position (z 0 ) of at least one roller (2, 3, 4) in a rolling mill stand (1) of a rolling mill, wherein the rolling mill stand (1) comprises at least one rolling stand (5) with a number of rollers (2, 3, 4), wherein each roller (2, 3, 4) in a roller position (6, 7, 8) is arranged, and wherein the Walzenanstellungen (6, 7, 8) acting on means (9) for adjusting the rollers (2, 3, 4) are present relative to the roll stand (5),
characterized,
that the method comprises the steps: a) arrangement of at least one rolling stand (10) with its rollers (2, 3, 4) in a calibration stand; b) acting on the roller adjustment (6, 7, 8) with a force (F) in a setting direction (z), so that the roller (2, 3, 4) with a defined contact (11) against a contact surface (12) of the Rolling stand (10) of the calibration stand presses and measuring the actual caliber (13) of the roller (2, 3, 4) in this position (A); c) determining the deviation amount (Δz) in the setting direction (z) between the position (A) according to step b) and the roll position to achieve an ideal caliber (z 0 ); d) installation of the roll stand together with roll (2, 3, 4) from the calibration in the rolling mill stand (1) of the rolling mill and applying the roller adjustment (6, 7, 8) with a force (F) in the direction of adjustment (z), so that the roller (2, 3, 4) with a defined system (11) presses against a contact surface (14) of the mill stand (5) installed in the rolling mill stand (1) of the rolling mill; e) Adjustment of the roller adjustment (6, 7, 8) counter to the setting direction (z) by the deviation (Δz) and the beginning of the rolling operation in the rolling mill with the ready for the mill stand (5) thus obtained setting (z 0 ) of the roller adjustment ( 6, 7, 8) and the roller (2, 3, 4). Verfahren nach Anspruch 1,
dadurch gekennzeichnet,
dass die Walzen (2, 3, 4) zur Fertigung eines Rohrs oder eines Stabes verwendet werden.Method according to claim 1,
characterized,
in that the rolls (2, 3, 4) are used for the production of a pipe or a rod. Verfahren nach Anspruch 1 oder 2,
dadurch gekennzeichnet,
dass drei Walzen (2, 3, 4) zusammenwirken.Method according to claim 1 or 2,
characterized,
that three rollers (2, 3, 4) cooperate. Verfahren nach Anspruch 3,
dadurch gekennzeichnet, dass die Walzen (2, 3, 4) frei von einer mechanischen Kopplung sind.Method according to claim 3,
characterized in that the rollers (2, 3, 4) are free of mechanical coupling. Verfahren nach einem der Ansprüche 1 bis 4,
dadurch gekennzeichnet,
dass das Vermessen des Kalibers (13) gemäß Schritt b) nach Anspruch 1 auf optische Weise erfolgt.Method according to one of claims 1 to 4,
characterized,
in that the caliber (13) according to step b) of claim 1 is measured optically. Verfahren nach einem der Ansprüche 1 bis 5,
dadurch gekennzeichnet,
dass der Betrag der Kraft (F) gemäß Schritt b) und gemäß Schritt d) nach Anspruch 1 gleich groß ist.Method according to one of claims 1 to 5,
characterized,
that the amount of force (F) according to step b) and in step d) of claim 1 is the same. System bestehend aus einem Walzwerk und einem Kalibrierstand, wobei das Walzwerk mindestens einen Walzwerkständer (1) zur Aufnahme von in einem Walzgerüst (5) angeordneten Walzen (2, 3, 4) aufweist, wobei das Walzgerüst (5) Mittel (9) zur Anstellung der Walzen (2, 3, 4) relativ zum Walzwerkständer (1) aufweist und wobei der Kalibrierstand zur Aufnahme mindestens eines Walzgerüsts (10) mit seinen Walzen (2, 3, 4) und Walzenanstellungen (6, 7, 8) ausgebildet ist, zur Durchführung des Verfahrens nach einem der Ansprüche 1 bis 6,
dadurch gekennzeichnet,
dass die Walzenanstellung (6, 7, 8) mindestens eine in Anstellrichtung (z) wirksame definierte Anlage (11) aufweist, die mit einer Anlagefläche (14) am Walzwerkständer (1) und einer Anlagefläche (12) am Kalibrierstand zusammenwirkt.System comprising a rolling mill and a calibration stand, wherein the rolling mill has at least one rolling mill stand (1) for receiving rolls (2, 3, 4) arranged in a roll stand (5), wherein the rolling stand (5) comprises means (9) for setting the rolls (2, 3, 4) relative to the rolling mill stand (1) and wherein the calibration stand for receiving at least one roll stand (10) with its rollers (2, 3, 4) and roll settings (6, 7, 8) is formed, for carrying out the method according to one of claims 1 to 6,
characterized,
in that the roller adjustment (6, 7, 8) has at least one defined system (11) effective in the adjustment direction (z), which interacts with a contact surface (14) on the rolling mill stand (1) and a contact surface (12) on the calibration stand. System nach Anspruch 7,
dadurch gekennzeichnet,
dass der Kalibierstand Mittel zur Beaufschlagung der Walzenanstellungen (6, 7, 8) aufweist, um die Anlage (11) der Walzenanstellung (6, 7, 8) in Anstellrichtung (z) mit einer Kraft (F) gegen die Anlagefläche (12) am Walzgerüst (10) des Kalibrierstands zu drücken.System according to claim 7,
characterized,
that the calibration level means for acting on the roller adjustments (6, 7, 8) in order to press the installation (11) of the roller adjustment (6, 7, 8) in the adjustment direction (z) with a force (F) against the contact surface (12) on the rolling stand (10) of the calibration stand , System nach Anspruch 7 oder 8,
dadurch gekennzeichnet,
dass der Kalibierstand weiterhin Mittel, vorzugsweise optische Mittel, zum Vermessen des tatsächlichen Kalibers (13) der Walze (2, 3, 4) im Walzgerüst (10) des Kalibrierstands aufweist.System according to claim 7 or 8,
characterized,
in that the calibration stand further comprises means, preferably optical means, for measuring the actual caliber (13) of the roll (2, 3, 4) in the rolling stand (10) of the calibration stand.
EP20100003812 2009-05-14 2010-04-09 Method for setting the position of a roller in a rolling mill stand of a rolling mill and system comprising a rolling mill and a calibrating stand for carrying out the method Active EP2251107B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102009021260A DE102009021260A1 (en) 2009-05-14 2009-05-14 Method for adjusting the position of a roll in a rolling mill stand of a rolling mill and system consisting of a rolling mill and a calibration stand

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EP2251107A1 true EP2251107A1 (en) 2010-11-17
EP2251107B1 EP2251107B1 (en) 2012-12-26

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010010697B4 (en) * 2009-03-31 2017-11-02 Sms Group Gmbh Rolling mill for producing pipes and rods or the like long products

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911930A1 (en) * 1989-04-12 1990-10-25 Ali Bindernagel Prodn. process for roller stands - uses measuring rollers as standard to compare with dimensions of working rollers and produce coordinates for machining operation
DE4137451A1 (en) * 1991-11-14 1993-05-19 Kocks Technik Adjustment of three roll assembly defining common calibre opening - involves using triangular and hexagonal patterns to ensure a common focal point for each roll, allowing rapid and accurate adjustment
DE20005700U1 (en) 2000-03-28 2001-08-02 Kocks Technik Roll stand for rolling mills for rolling metallic pipes, bars or wires
DE10307199B3 (en) 2003-02-20 2004-08-19 Sms Meer Gmbh Rolling stand, for rod and tubular materials, has roller shafts in eccentric bushes at the housing, meshing together by bevel gears in cassettes to allow eccentric adjustment without play at the drive teeth
DE10316650B3 (en) 2003-04-11 2004-10-21 Sms Meer Gmbh Roller arrangement for a mill train for rolling metal rods or pipes comprise an axially sliding hollow bolt arranged on a pulling element to secure a radial support having units depending on its axial position
EP1541250A1 (en) * 2003-12-10 2005-06-15 SMS Meer GmbH Method for axially positioning rolls in a roll stand and roll stand
DE102005042835B3 (en) 2005-09-09 2007-05-31 Sms Meer Gmbh Rolling mill for manufacturing tube and rod, includes rollers in roller frame located in stand, with adjusters which can be swung or translated and locked in position

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3911930A1 (en) * 1989-04-12 1990-10-25 Ali Bindernagel Prodn. process for roller stands - uses measuring rollers as standard to compare with dimensions of working rollers and produce coordinates for machining operation
DE4137451A1 (en) * 1991-11-14 1993-05-19 Kocks Technik Adjustment of three roll assembly defining common calibre opening - involves using triangular and hexagonal patterns to ensure a common focal point for each roll, allowing rapid and accurate adjustment
DE20005700U1 (en) 2000-03-28 2001-08-02 Kocks Technik Roll stand for rolling mills for rolling metallic pipes, bars or wires
DE10307199B3 (en) 2003-02-20 2004-08-19 Sms Meer Gmbh Rolling stand, for rod and tubular materials, has roller shafts in eccentric bushes at the housing, meshing together by bevel gears in cassettes to allow eccentric adjustment without play at the drive teeth
DE10316650B3 (en) 2003-04-11 2004-10-21 Sms Meer Gmbh Roller arrangement for a mill train for rolling metal rods or pipes comprise an axially sliding hollow bolt arranged on a pulling element to secure a radial support having units depending on its axial position
EP1541250A1 (en) * 2003-12-10 2005-06-15 SMS Meer GmbH Method for axially positioning rolls in a roll stand and roll stand
DE102005042835B3 (en) 2005-09-09 2007-05-31 Sms Meer Gmbh Rolling mill for manufacturing tube and rod, includes rollers in roller frame located in stand, with adjusters which can be swung or translated and locked in position

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EP2251107B1 (en) 2012-12-26
ES2399501T3 (en) 2013-04-01

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