EP2026918B1 - Apparatus and method for guiding a strip - Google Patents

Apparatus and method for guiding a strip Download PDF

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Publication number
EP2026918B1
EP2026918B1 EP07725644A EP07725644A EP2026918B1 EP 2026918 B1 EP2026918 B1 EP 2026918B1 EP 07725644 A EP07725644 A EP 07725644A EP 07725644 A EP07725644 A EP 07725644A EP 2026918 B1 EP2026918 B1 EP 2026918B1
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EP
European Patent Office
Prior art keywords
strip
bearing block
roll
deformation
constructed
Prior art date
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Active
Application number
EP07725644A
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German (de)
French (fr)
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EP2026918A1 (en
Inventor
Albrecht Girgensohn
Andreas Runge
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SMS Siemag AG
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SMS Siemag AG
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Priority to PL07725644T priority Critical patent/PL2026918T3/en
Publication of EP2026918A1 publication Critical patent/EP2026918A1/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
    • B21B38/08—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-force
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/06—Continuous casting of metals, i.e. casting in indefinite lengths into moulds with travelling walls, e.g. with rolls, plates, belts, caterpillars
    • B22D11/0637—Accessories therefor
    • B22D11/0677—Accessories therefor for guiding, supporting or tensioning the casting belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D11/00—Continuous casting of metals, i.e. casting in indefinite lengths
    • B22D11/12—Accessories for subsequent treating or working cast stock in situ
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B39/00—Arrangements for moving, supporting, or positioning work, or controlling its movement, combined with or arranged in, or specially adapted for use in connection with, metal-rolling mills
    • B21B39/02—Feeding or supporting work; Braking or tensioning arrangements, e.g. threading arrangements
    • B21B39/08—Braking or tensioning arrangements
    • B21B39/084—Looper devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B41/00—Guiding, conveying, or accumulating easily-flexible work, e.g. wire, sheet metal bands, in loops or curves; Loop lifters

Definitions

  • the invention relates to a device for guiding a strip, in particular a metal strip by means of one or more rollers. It is the while guiding the tape, d. H. Measured under load on the rollers acting roller force.
  • rollers of a strand guiding device are made by means of hydraulic cylinders.
  • each roller is associated with one load cell or load cell each.
  • the load cell is between the bearing block in which the roller is mounted and a segment traverse installed.
  • the present invention seeks to develop a known device for guiding a metal strip to the effect that the sensor device and / or the evaluation device on the one hand arranged close to the location of the deformation to be measured and on the other hand protected from environmental influences.
  • the solution consists in that the bearing block whose deformation is measured has a cavity or a recess for receiving the sensor device and / or the evaluation device.
  • the cavity in the bearing block offers the advantage that the sensor device and / or the evaluation device, if installed there, are arranged spatially close to the location of the deformation of the bearing block to be measured and, moreover, in the bearing block from environmental influences , especially from moisture, are protected.
  • band in the context of the invention is basically very broad. So he basically means bands of any material and with any cross-sections, including ropes or threads. In particular, however, the term means metal bands, especially slabs.
  • wheels are also to be understood in the context of the invention also very broad. So these wheels can basically also be wheels or pulleys.
  • roll is to be understood here in the sense of a strand guide roll in a strand guiding device, in the sense of a roll of a rolling stand or in the sense of a roll of a looper or intermediate store for metal strip.
  • the claimed indirect method for measuring the roller force has the advantage that it can be installed with very little effort and also reliable and reliable measurement results for the roller forces over a longer period of time.
  • An embodiment of the sensor device in the form of an ultrasonic sensor, an eddy current sensor or an optical distance sensor advantageously offers the possibility of a non-contact measurement of the deformation, in which only a small amount of design measures are required on the bearing block.
  • the bearing block has a suitable weak point, if its deformation when guiding the strip from the sensor device is representative of the deformation of the bearing block is easily detectable.
  • the sensor device can then advantageously be designed as a simple and inexpensive distance sensor, which then detects the deformation of the bearing block under load in the form of a narrowing of the slot.
  • FIG. 1 shows the device 100 of the invention only by way of example in the form of a strand guiding device. It serves to guide a band here 200 in the form of a metal strip, in particular in the form of a slab.
  • the carrier device 110 of this device 100 is designed in the form of a segment frame. On the segment frame or on its truss bearing blocks 120 are attached to receive rollers 130.
  • strand guide means are two rollers 130 arranged opposite one another; Together they form a roller gap in which the metal strip 200 is guided.
  • FIG. 2 shows a cross section through a bearing block 120.
  • the bearing block 120 is fastened to the carrier device 110 with screw connections 128.
  • the bearing block 120 has an artificial weak point 124 in the form of a slot.
  • a measuring device 140 can be recognized, which comprises a sensor device 142 and an associated evaluation device 144.
  • the sensor device 142 is used for detecting the deformation of the bearing block under load, ie when guiding the belt 200.
  • the evaluation device 144 is used to calculate the desired roller force acting on the roller 130 in the event of load from the deformation of the bearing block detected by the sensor device 142.
  • FIGS. 3A and 3B show a comparison between the bearing block in the unloaded state, FIG. 3A , and in a loaded condition, FIG. 3B.
  • FIG. 3B allows the deformation resulting from the load F, in particular compression of the bearing block, to be clearly recognized.
  • the measuring device 142 is for in the Figures 2 and 3 embodiment shown in the form of a distance sensor, which preferably detects a constriction of the slot 124 under load compared to a larger slot height in the unloaded state, preferably continuously.
  • the detected restriction of the slot 124 represents the deformation of the bearing block 120 under load.
  • the mathematical relationship between the distance measurement signal of the distance sensor and the forces acting on the roller is determined by the characteristic of the measuring sensor and the exact geometry of the bearing block. It creates a simple linear or nearly linear relationship with polynomial portions, so that the acting Forces can be calculated in a simple way from the measured deformations.
  • the evaluation device 144 calculates the desired force F acting on the roller 130 in the event of load.
  • FIG. 3B shows an example of the bearing block deformed under load, but heavily oversubscribed.
  • the deformation of the bearing block in the region of the weak point or the slot in a strand guiding device at maximum permissible roller load is only 0.02-0.3 mm.
  • Geometric changes on this scale are easily measurable and thus allow a sufficiently large measurement signal as a representative of the deformation of the bearing block.
  • the weak point offers a suitable means of transforming the deformation of the bearing block into a measurable order of magnitude or making it visible.
  • the weakness is on the one hand to train accordingly.
  • it must also be ensured that the bearing block 120 is not unduly weakened by the weak point. Rather, z.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Continuous Casting (AREA)
  • Coating With Molten Metal (AREA)
  • Replacement Of Web Rolls (AREA)
  • Rolling Contact Bearings (AREA)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Metal Rolling (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Length Measuring Devices With Unspecified Measuring Means (AREA)

Abstract

The invention relates to an apparatus and a method for guiding a strip, in particular a metal strip. Known apparatuses of this type have a carrier device (110) on which bearing blocks (120) arm fastened. Rollers (130) are rotatably mounted in the bearing blocks in order to guide the strip. So that the roller force acting on the roller in the loading case, i.e. during the guidance of the strip, can be measured in a lasting and reliable manner, it is proposed according to the invention to detect the deformation of the bearing block, in particular in the loading case, by means of a sensor device and ten to calculate the roller force required from the deformation of the bearing block by means of an evaluating device.

Description

Die Erfindung betrifft eine Vorrichtung zum Führen eines Bandes, insbesondere eines Metallbandes mittels einer oder mehrerer Rollen. Dabei wird die beim Führen des Bandes, d. h. unter Belastung auf die Rollen einwirkenden Rollenkraft gemessen.The invention relates to a device for guiding a strip, in particular a metal strip by means of one or more rollers. It is the while guiding the tape, d. H. Measured under load on the rollers acting roller force.

Derartige Vorrichtungen sind im Stand der Technik, z. B. aus der EP 0 539 784 B2 bekannt. In dieser europäischen Patentschrift ist eine Stranggießanlage offenbart, bei welcher die Rollen einer Strangführungseinrichtung mit Hilfe von Hydraulikzylindern angestellt werden. Um die mechanischen Lasten zu messen, die während des Betriebs der Strangführungseinrichtung auf die einzelnen Rollen der Strangführungseinrichtung wirken, ist jeder Rolle jeweils eine Belastungszelle bzw. Kraftmessdose zugeordnet. Die Kraftmessdose ist dabei zwischen dem Lagerblock in dem die Rolle gelagert ist und einer Segmenttraverse eingebaut.Such devices are known in the art, for. B. from the EP 0 539 784 B2 known. In this European patent a continuous casting plant is disclosed in which the rollers of a strand guiding device are made by means of hydraulic cylinders. In order to measure the mechanical loads which act on the individual rollers of the strand guide device during operation of the strand guide device, each roller is associated with one load cell or load cell each. The load cell is between the bearing block in which the roller is mounted and a segment traverse installed.

Weiterhin sind im Stand der Technik die Druckschriften:

  • DE 41 21 116 A1 ,
  • " SENSITIVE MEASUREMENT OF ROLL SEPARATION FORCES", STEEL TIMES INTERNATIONAL, DMG WORLD MEDIA, LEWES, GB, Bd. 14, Nr. 4, 01. Juli 1990, Seite 31, XP000161372 ISSN: 0143-7798 ,
  • US 2,050,106 A und
  • DE 34 22 766 A1
bekannt, die ebenfalls Vorrichtungen der genannten Art betreffen. Konkret offenbaren alle diese genannten Druckschriften eine Vorrichtung zum Führen eines Metallbandes mit einem Lagerblock in dem eine Rolle zum Führen des Bandes drehbar gelagert ist. Weiterhin umfasst die Vorrichtung eine Sensoreinrichtung zum Erfassen einer Verformung des Lagerblocks beim Führen des Bandes und eine Auswerteeinrichtung zum Berechnen der auf die Rolle wirkenden Rollenkraft aus der von der Sensoreinrichtung erfassten Verformung des Lagerblocks.Furthermore, in the prior art, the documents:
  • DE 41 21 116 A1 .
  • " SENSITIVE MEASUREMENT OF ROLL SEPARATION FORCES ", STEEL TIMES INTERNATIONAL, DMG WORLD MEDIA, LEWES, GB, Vol. 14, No. 4, 01. July 1990, page 31, XP000161372 ISSN: 0143-7798 .
  • US 2,050,106 A and
  • DE 34 22 766 A1
known, which also relate to devices of the type mentioned. Specifically, all of these cited publications disclose a device for guiding a metal strip with a bearing block in which a roller for guiding the tape is rotatably mounted. Furthermore, the device comprises a sensor device for detecting a deformation of the bearing block when guiding the strip and an evaluation device for calculating the roller force acting on the roller from the deformation of the bearing block detected by the sensor device.

Ausgehend von diesem Stand der Technik liegt der Erfindung die Aufgabe zugrunde, eine bekannte Vorrichtung zum Führen eines Metallbandes dahingehend weiterzubilden, dass die Sensoreinrichtung und/oder die Auswerteeinrichtung einerseits nahe an dem Ort der zu messenden Verformung angeordnet und andererseits vor Umwelteinflüssen geschützt sind.Based on this prior art, the present invention seeks to develop a known device for guiding a metal strip to the effect that the sensor device and / or the evaluation device on the one hand arranged close to the location of the deformation to be measured and on the other hand protected from environmental influences.

Diese Aufgabe wird durch den Gegenstand des Vorrichtungsanspruchs 1 gelöst. Konkret besteht die Lösung darin, dass der Lagerblock, dessen Verformung gemessen wird, einen Hohlraum oder eine Aussparung aufweist, zur Aufnahme der Sensoreinrichtung und/oder der Auswerteeinrichtung.This object is achieved by the subject matter of the device claim 1. Specifically, the solution consists in that the bearing block whose deformation is measured has a cavity or a recess for receiving the sensor device and / or the evaluation device.

Der Hohlraum in dem Lagerblock bietet den Vorteil, dass die Sensoreinrichtung und/oder die Auswerteeinrichtung, wenn sie dort eingebaut sind, zum einen räumlich nahe an dem Ort der zu messenden Verformung des Lagerblocks angeordnet sind und dass sie darüber hinaus dort in dem Lagerblock vor Umwelteinflüssen, insbesondere vor Feuchtigkeit, geschützt sind.The cavity in the bearing block offers the advantage that the sensor device and / or the evaluation device, if installed there, are arranged spatially close to the location of the deformation of the bearing block to be measured and, moreover, in the bearing block from environmental influences , especially from moisture, are protected.

Der Begriff "Band" im Sinne der Erfindung ist grundsätzlich sehr breit gefasst. So meint er grundsätzlich Bänder aus beliebigem Material und mit beliebigen Querschnitten, auch Seile oder Fäden. Insbesondere meint der Begriff jedoch Metallbänder, speziell auch Brammen.The term "band" in the context of the invention is basically very broad. So he basically means bands of any material and with any cross-sections, including ropes or threads. In particular, however, the term means metal bands, especially slabs.

Der Begriff "Rolle" ist im Sinne der Erfindung ebenfalls sehr breit zu verstehen. So kann es sich bei diesen Rollen grundsätzlich auch um Räder oder Umlenkrollen handeln. Insbesondere ist der Begriff "Rolle" hier jedoch im Sinne einer Strangführungsrolle in einer Strangführungseinrichtung, im Sinne einer Walze eines Walzgerüstes oder im Sinne einer Rolle eines Loopers bzw. Zwischenspeichers für Metallband zu verstehen.The term "role" is also to be understood in the context of the invention also very broad. So these wheels can basically also be wheels or pulleys. In particular, however, the term "roll" is to be understood here in the sense of a strand guide roll in a strand guiding device, in the sense of a roll of a rolling stand or in the sense of a roll of a looper or intermediate store for metal strip.

Die beanspruchte indirekte Methode zum Messen der Rollenkraft bietet den Vorteil, dass sie mit recht geringem Aufwand installiert werden kann und auch über einen längeren Zeitraum betriebssicher und zuverlässig Messergebnisse für die Rollenkräfte liefert.The claimed indirect method for measuring the roller force has the advantage that it can be installed with very little effort and also reliable and reliable measurement results for the roller forces over a longer period of time.

Eine Ausbildung der Sensoreinrichtung in Form eines Ultraschallsensors, eines Wirbelstromsensors oder eines optischen Abstandssensors bieten vorteilhafterweise die Möglichkeit einer berührungslosen Messung der Verformung, bei der nur geringe konstruktive Maßnahmen an dem Lagerblock erforderlich sind.An embodiment of the sensor device in the form of an ultrasonic sensor, an eddy current sensor or an optical distance sensor advantageously offers the possibility of a non-contact measurement of the deformation, in which only a small amount of design measures are required on the bearing block.

Es ist vorteilhaft, wenn der Lagerblock eine geeignete Schwachstelle aufweist, wenn deren Verformung beim Führen des Bandes von der Sensoreinrichtung repräsentativ für die Verformung des Lagerblockes einfach erfassbar ist.It is advantageous if the bearing block has a suitable weak point, if its deformation when guiding the strip from the sensor device is representative of the deformation of the bearing block is easily detectable.

Besonders einfach ist die Ausgestaltung der Schwachstelle in Form eines Schlitzes. Die Sensoreinrichtung kann dann vorteilhafterweise als einfacher und preiswerter Abstandssensor ausgebildet sein, welcher dann die Verformung des Lagerblockes unter Belastung in Form einer Verengung des Schlitzes erfasst.Particularly simple is the design of the vulnerability in the form of a slot. The sensor device can then advantageously be designed as a simple and inexpensive distance sensor, which then detects the deformation of the bearing block under load in the form of a narrowing of the slot.

Vorteilhafte Ausgestaltungen für die Vorrichtung sind Gegenstand der Unteransprüche.Advantageous embodiments of the device are the subject of the dependent claims.

Der Beschreibung sind insgesamt drei Figuren beigefügt, wobei

Figur 1
eine Vorrichtung zum Führen eines Metallbandes;
Figur 2
einen Lagerblock der Vorrichtung in unbelastetem Zustand;
Figur 3A
einen Lagerblock in unbelastetem Zustand; und
Figur 3B
den Lagerblock in belastetem Zustand
zeigt.The description is a total of three figures attached, where
FIG. 1
a device for guiding a metal strip;
FIG. 2
a storage block of the device in the unloaded state;
FIG. 3A
a bearing block in unloaded condition; and
FIG. 3B
the bearing block in loaded condition
shows.

Die Erfindung wird nachfolgend in Form von Ausführungsbeispielen unter Bezugnahme auf die genannten Figuren detailliert beschrieben. In allen Figuren sind gleiche Elemente mit gleichen Bezugszeichen bezeichnet.The invention will now be described in detail in the form of embodiments with reference to said figures. In all figures, like elements are designated by like reference numerals.

Figur 1 zeigt die erfindungsgemäße Vorrichtung 100 lediglich beispielhaft in Form einer Strangführungseinrichtung. Sie dient hier zum Führen eines Bandes 200 in Form eines Metallbandes, insbesondere in Form einer Bramme. Die Trägereinrichtung 110 dieser Vorrichtung 100 ist in Form eines Segmentrahmens ausgebildet. An dem Segmentrahmen bzw. an dessen Traversen sind Lagerblöcke 120 befestigt zur Aufnahme von Rollen 130. Bei der in Figur 1 gezeigten Strangführungseinrichtung sind zwei Rollen 130 gegenüberliegend angeordnet; sie bilden zusammen einen Rollenspalt, in dem das Metallband 200 geführt ist. FIG. 1 shows the device 100 of the invention only by way of example in the form of a strand guiding device. It serves to guide a band here 200 in the form of a metal strip, in particular in the form of a slab. The carrier device 110 of this device 100 is designed in the form of a segment frame. On the segment frame or on its truss bearing blocks 120 are attached to receive rollers 130. In the in FIG. 1 shown strand guide means are two rollers 130 arranged opposite one another; Together they form a roller gap in which the metal strip 200 is guided.

Figur 2 zeigt einen Querschnitt durch einen Lagerblock 120. Es ist eine Bohrung 121 zum Lagern der Rollen 130 durch Aufnahme von deren Zapfen ausgebildet. Der Lagerblock 120 ist mit Schraubverbindungen 128 an der Trägereinrichtung 110 befestigt. Der Lagerblock 120 weist eine künstliche Schwachstelle 124 in Form eines Schlitzes auf. In Figur 2 ist darüber hinaus eine Messeinrichtung 140 zu erkennen, welche eine Sensoreinrichtung 142 und eine zugeordnete Auswerteeinrichtung 144 umfasst. Die Sensoreinrichtung 142 dient zum Erfassen der Verformung des Lagerblocks unter Last, d. h. beim Führen des Bandes 200. Die Auswerteeinrichtung 144 dient zum Berechnen der gesuchten, auf die Rolle 130 wirkenden Rollenkraft im Belastungsfalle aus der von der Sensoreinrichtung 142 erfassten Verformung des Lagerblocks. FIG. 2 shows a cross section through a bearing block 120. There is a bore 121 for supporting the rollers 130 formed by receiving their pin. The bearing block 120 is fastened to the carrier device 110 with screw connections 128. The bearing block 120 has an artificial weak point 124 in the form of a slot. In FIG. 2 In addition, a measuring device 140 can be recognized, which comprises a sensor device 142 and an associated evaluation device 144. The sensor device 142 is used for detecting the deformation of the bearing block under load, ie when guiding the belt 200. The evaluation device 144 is used to calculate the desired roller force acting on the roller 130 in the event of load from the deformation of the bearing block detected by the sensor device 142.

Figuren 3A und 3B zeigen einen Vergleich zwischen dem Lagerblock in unbelastetem Zustand, Figur 3A, und in belastetem Zustand, Figur 3B. Figur 3B lässt die aus der Belastung F resultierenden Verformungen, insbesondere Stauchung des Lagerblocks deutlich erkennen. Die Messeinrichtung 142 ist für das in den Figuren 2 und 3 gezeigte Ausführungsbeispiel in Form eines Abstandssensors ausgebildet, der eine Verengung des Schlitzes 124 unter Last im Vergleich zu einer größeren Schlitzhöhe in unbelastetem Zustand vorzugsweise kontinuierlich erfasst. Die erfasste Verengung des Schlitzes 124 repräsentiert die Verformung des Lagerblocks 120 unter Last. Der mathematische Zusammenhang zwischen dem Abstands-Messsignal des Abstandssensors und den auf die Rolle wirkenden Kräften wird durch die Kennlinie des Messsensors und die genaue Geometrie des Lagerblocks bestimmt. Es entsteht ein einfacher linear oder nahezu linear Zusammenhang mit polynomischen Anteilen, so dass die wirkenden Kräfte auf einfachem Weg aus den gemessenen Verformungen berechnet werden können. FIGS. 3A and 3B show a comparison between the bearing block in the unloaded state, FIG. 3A , and in a loaded condition, FIG. 3B. FIG. 3B allows the deformation resulting from the load F, in particular compression of the bearing block, to be clearly recognized. The measuring device 142 is for in the Figures 2 and 3 embodiment shown in the form of a distance sensor, which preferably detects a constriction of the slot 124 under load compared to a larger slot height in the unloaded state, preferably continuously. The detected restriction of the slot 124 represents the deformation of the bearing block 120 under load. The mathematical relationship between the distance measurement signal of the distance sensor and the forces acting on the roller is determined by the characteristic of the measuring sensor and the exact geometry of the bearing block. It creates a simple linear or nearly linear relationship with polynomial portions, so that the acting Forces can be calculated in a simple way from the measured deformations.

Aus dieser Verformung berechnet die Auswerteeinrichtung 144 dann die gesuchte auf die Rolle 130 einwirkende Kraft F im Belastungsfalle.From this deformation, the evaluation device 144 then calculates the desired force F acting on the roller 130 in the event of load.

Figur 3B zeigt ein Beispiel für den unter Last verformten Lagerblock, allerdings stark überzeichnet. So beträgt die Verformung des Lagerblocks im Bereich der Schwachstelle bzw. des Schlitzes bei einer Strangführungseinrichtung bei maximaler zulässiger Rollenlast lediglich 0,02 - 0,3 mm. Geometrische Veränderungen in dieser Größenordnung sind problemlos messbar und ermöglichen insofern ein ausreichend großes Messsignal als Repräsentant für die Verformung des Lagerblocks. FIG. 3B shows an example of the bearing block deformed under load, but heavily oversubscribed. Thus, the deformation of the bearing block in the region of the weak point or the slot in a strand guiding device at maximum permissible roller load is only 0.02-0.3 mm. Geometric changes on this scale are easily measurable and thus allow a sufficiently large measurement signal as a representative of the deformation of the bearing block.

Dabei gilt es allerdings zu bedenken, dass die geometrischen Veränderungen in der genannten Größenordnung nur im Bereich der künstlich eingebauten Schwachstelle auftreten; ansonsten liegen die Verformungen typischerweise in wesentlich kleineren, kaum noch messbaren Größenordnungen. Insofern bietet die Schwachstelle ein geeignetes Mittel, die Verformung des Lagerblocks in eine messbare Größenordnung zu transformieren bzw. diese sichtbar zu machen. Die Schwachstelle ist zum einen dafür entsprechend auszubilden. Zum anderen muss jedoch auch gewährleistet sein, dass der Lagerblock 120 durch die Schwachstelle nicht unzulässig stark geschwächt wird. Vielmehr ist z. B. bei einer Ausführung der Vorrichtung als Strangführungseinrichtung zu gewährleisten, dass die Verformung der Schwachstelle so klein bleibt, dass die Strangschale einer Bramme durch die Veränderung der Rollenposition unter Last nicht überbelastet wird.However, it should be remembered that the geometric changes of the order of magnitude occur only in the area of the artificially installed weak point; otherwise the deformations are typically in much smaller, hardly measurable orders of magnitude. In this respect, the weak point offers a suitable means of transforming the deformation of the bearing block into a measurable order of magnitude or making it visible. The weakness is on the one hand to train accordingly. On the other hand, however, it must also be ensured that the bearing block 120 is not unduly weakened by the weak point. Rather, z. Example, in an embodiment of the device as a strand guiding device to ensure that the deformation of the weak point remains so small that the strand shell of a slab is not overloaded by the change in the role position under load.

Claims (8)

  1. Device (100) for guiding a strip (200), especially a metal strip, which comprises:
    - at least one bearing block (120);
    - a roll (130) which is rotatably mounted in the at least one bearing block and at which the strip (200) is guided; and
    - a measuring apparatus (140) for detecting the roll force acting on the roll during the guidance of the strip;
    wherein the measuring apparatus (140) comprises:
    - a sensor device (142) for detecting the deformation of the bearing block (120) during the guidance of the strip (200); and
    - an evaluation device (144) for computing the roll force that acts on the roll (130) from the deformation of the bearing block detected by the sensor device (142);
    characterised in that the bearing block (120), the deformation of which is being measured, has a cavity (122) or a recess for receiving the sensor device (142) and/or the evaluation device (144).
  2. Device (100) according to claim 1, characterised in that the sensor device (142) is constructed in the form of an ultrasonic sensor, an eddy-current sensor, a fibre-optic gap sensor or a test probe.
  3. Device (100) according to one of the preceding claims, characterised in that the bearing block (120), the deformation of which is to be measured, has a suitable weak point (124) whose own deformation during the guidance of the strip (200) can be detected by the sensor device (142) as representative of the deformation of the bearing block (120).
  4. Device (100) according to claim 3, characterised in that the weak point (124) is formed as a slot which is so arranged in the bearing block (120), preferably in the vicinity of a bore (126) for receiving a neck of the roll, that it deforms during the guidance of the strip.
  5. Device (100) according to claim 4, characterised in that the gap sensor (142) is suitably arranged for detecting deformation of the slot during the guidance of the strip.
  6. Device (100) according to any one of the preceding claims, characterised in that the bearing block is fixed to a support apparatus (110), the device (100) is constructed as a strand guide apparatus, the support apparatus (110) is constructed as a segmented frame, and the roll (136) is constructed as a segmented roll for guiding the strip in the form of a metal strip, especially a slab, from an upstream casting installation.
  7. Device (100) according to any one of claims 1 to 5, characterised in that the bearing block is fixed to a support apparatus (110), the device (100) is constructed as a rolling stand, the support apparatus (110) is constructed as a roll housing, and the roll (136) is constructed as a work roll or back-up roll for guiding and rolling the strip (200) in the form of a metal strip.
  8. Device (100) according to any one of claims 1 to 5, characterised in that the device (100) is constructed as a looper for interim storage of parts of the strip (200).
EP07725644A 2006-06-10 2007-05-30 Apparatus and method for guiding a strip Active EP2026918B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL07725644T PL2026918T3 (en) 2006-06-10 2007-05-30 Apparatus and method for guiding a strip

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006027066A DE102006027066A1 (en) 2006-06-10 2006-06-10 Apparatus and method for guiding a belt
PCT/EP2007/004753 WO2007140903A1 (en) 2006-06-10 2007-05-30 Apparatus and method for guiding a strip

Publications (2)

Publication Number Publication Date
EP2026918A1 EP2026918A1 (en) 2009-02-25
EP2026918B1 true EP2026918B1 (en) 2010-10-20

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EP07725644A Active EP2026918B1 (en) 2006-06-10 2007-05-30 Apparatus and method for guiding a strip

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US (1) US7827872B2 (en)
EP (1) EP2026918B1 (en)
JP (1) JP5085646B2 (en)
KR (1) KR101069158B1 (en)
CN (1) CN101426596B (en)
AT (1) ATE485117T1 (en)
AU (1) AU2007256507B2 (en)
BR (1) BRPI0709381A2 (en)
CA (1) CA2643965C (en)
DE (2) DE102006027066A1 (en)
ES (1) ES2354635T3 (en)
MX (1) MX2008012783A (en)
PL (1) PL2026918T3 (en)
RU (1) RU2398643C2 (en)
UA (1) UA92216C2 (en)
WO (1) WO2007140903A1 (en)
ZA (1) ZA200806694B (en)

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DE102008014524A1 (en) * 2007-12-28 2009-07-02 Sms Demag Ag Continuous casting plant with a device for determining solidification states of a cast strand and method therefor
DE102008050393A1 (en) * 2008-10-02 2010-04-08 Sms Siemag Aktiengesellschaft Arrangement and method for detecting an operating state of a strand guide
DE102009031651A1 (en) * 2009-07-03 2011-01-05 Sms Siemag Aktiengesellschaft Method for determining the position of the sump tip of a cast metal strand and continuous casting plant
DE102011088127A1 (en) * 2011-06-07 2012-12-13 Sms Siemag Ag Strand guide segment of a strand guide of a continuous casting plant and method for operating a strand guiding segment
DE102011077454A1 (en) 2011-06-14 2012-12-20 Sms Siemag Ag Continuous casting plant for casting e.g. metal strip, has calculation unit for modeling temperature field, solidification of strip and desired setting forces of rollers of strand guide based on calculated maximum load capacities
CN103008364B (en) * 2013-01-13 2015-04-15 北京首钢国际工程技术有限公司 Dual-function cold-rolled steel coil off-line check station capable of uncoiling up and down
DE102017109713A1 (en) 2017-05-05 2018-11-08 Data M Sheet Metal Solutions Gmbh Rollforming machine with sensor roll forming frame
DE102022203100A1 (en) * 2022-03-30 2023-10-05 Sms Group Gmbh Roll stand and method for operating same

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KR200199437Y1 (en) 1996-12-26 2000-12-01 이구택 Guiding device of strip
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KR100411281B1 (en) 1999-07-26 2003-12-18 주식회사 포스코 Apparatus and method for adjusting height of strip side guide
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JP2006119000A (en) * 2004-10-22 2006-05-11 Jtekt Corp Load detection system

Also Published As

Publication number Publication date
CN101426596A (en) 2009-05-06
US20090301225A1 (en) 2009-12-10
ES2354635T3 (en) 2011-03-16
US7827872B2 (en) 2010-11-09
CA2643965C (en) 2012-07-10
DE502007005421D1 (en) 2010-12-02
WO2007140903A1 (en) 2007-12-13
CA2643965A1 (en) 2007-12-13
RU2398643C2 (en) 2010-09-10
UA92216C2 (en) 2010-10-11
AU2007256507A1 (en) 2007-12-13
EP2026918A1 (en) 2009-02-25
BRPI0709381A2 (en) 2011-07-12
JP5085646B2 (en) 2012-11-28
KR101069158B1 (en) 2011-09-30
DE102006027066A1 (en) 2007-12-13
ATE485117T1 (en) 2010-11-15
ZA200806694B (en) 2009-10-28
MX2008012783A (en) 2008-10-14
PL2026918T3 (en) 2011-04-29
AU2007256507B2 (en) 2011-03-24
CN101426596B (en) 2010-09-08
JP2009539611A (en) 2009-11-19
RU2008142123A (en) 2010-04-27
KR20080102136A (en) 2008-11-24

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