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EP3630382B1 - Device for guiding metal strips having wear bodies in a finishing train - Google Patents

Device for guiding metal strips having wear bodies in a finishing train Download PDF

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Publication number
EP3630382B1
EP3630382B1 EP18728354.4A EP18728354A EP3630382B1 EP 3630382 B1 EP3630382 B1 EP 3630382B1 EP 18728354 A EP18728354 A EP 18728354A EP 3630382 B1 EP3630382 B1 EP 3630382B1
Authority
EP
European Patent Office
Prior art keywords
wear
finishing train
looper
metal strip
members
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.)
Active
Application number
EP18728354.4A
Other languages
German (de)
French (fr)
Other versions
EP3630382A1 (en
Inventor
Friedrich Moser
Walter Grabner
Klaus FRAUENHUBER
Juergen Schiefer
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.)
Primetals Technologies Austria GmbH
Original Assignee
Primetals Technologies Austria 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 Primetals Technologies Austria GmbH filed Critical Primetals Technologies Austria GmbH
Priority to SI201830408T priority Critical patent/SI3630382T1/en
Priority to RS20211275A priority patent/RS62451B1/en
Priority to PL18728354T priority patent/PL3630382T3/en
Publication of EP3630382A1 publication Critical patent/EP3630382A1/en
Application granted granted Critical
Publication of EP3630382B1 publication Critical patent/EP3630382B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • 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
    • B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
    • B21B1/22—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length
    • B21B1/24—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling plates, strips, bands or sheets of indefinite length in a continuous or semi-continuous process
    • 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
    • B21B13/02—Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories with axes of rolls arranged horizontally
    • 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
    • B21B39/14—Guiding, positioning or aligning work

Definitions

  • the present invention relates to a device for the lateral guidance of a metal strip running between two roll stands of a finishing train with different running paths over a loop lifter which can be set in different positions.
  • EP 2 283 941 A1 forms the basis for the preamble of claim 1 and discloses a rolling train with roll stands and loop lifters arranged between the roll stands.
  • WO 2015/043926 A1 discloses a device for laterally guiding a belt with rotatable wear bodies according to the preamble of claim 3.
  • WO2015043926A1 described that in a base body module with a guide plane there are also rotatable wear bodies that guide the metal strip. To WO2015043926A1 the wear bodies are controlled in several defined Rotatable positions. After a first metal belt has passed through the metal belt conveyor and before a second metal belt enters the metal belt conveyor, the wear bodies are rotated in a controlled manner from a first defined rotational position to a second defined rotational position. The second metal band therefore does not run through the wear track cut into the wear surface of the wear body by the first metal band. Instead, it is passed through an area of the wear surface that is exposed to a metal strip for the first time, where it gradually cuts a new wear track.
  • loop lifters are installed between the roll stands in the finishing train to simplify strip tension control or to maintain its tension despite the change in length.
  • This is essentially a roller whose horizontal axis of rotation is vertically adjustable.
  • the metal strip is tensioned and guided over the looper roll - also known as the looper roll - when its surface is above the pass-line of the finishing train.
  • the looper roller is moved upwards out of the pass-line, depending on the force on the looper roller generated by the metal band.
  • a Finishing train with at least two roll stands and at least one loop lifter, which is arranged between two adjacent roll stands and can be set in different positions, and with at least one device for lateral guidance one between two roll stands metal belt running over the looper with different paths, which device for lateral guidance at least one base body module with an essentially vertical guide plane, as well as several wear bodies with wear surfaces that can be rotated into several rotational positions, the wear surfaces of the wear bodies being essentially flat and essentially parallel to the guide plane in all rotational positions, includes, characterized in that at least two wear bodies are arranged between one of the roll stands and the looper, where the area of the wear surface of adjacent wear bodies seen in the direction of the looper increases.
  • the finishing train has at least two rolling stands. At least one loop lifter is arranged at least between two adjacent roll stands, viewed in the direction of strip travel. If there are more than two roll stands, at least one loop lifter can also be present several times between two adjacent roll stands. Neighboring is to be understood as the closest. For example, if there are three roll stands A, B, C, a looper can be between neighbors A and B, and a looper between neighbors B and C. Viewed in the direction of travel of the tape, A and B are adjacent, and B and C are adjacent, A and C are not adjacent.
  • the finishing train there is at least one device for lateral guidance; it guides the metal strip running between two adjacent roll stands over the looper.
  • the device for lateral guidance which has at least two wear bodies between one of the two adjacent roll stands and the looper between these two adjacent roll stands, the area of the wear surface of adjacent wear elements increases from wear element to wear element when viewed in the direction of the looper.
  • the wear surface of that wear body which is located closer to the looper is larger than that of the wear body which is further away from the looper. Neighboring is to be understood as the closest.
  • the metal band is, for example, a steel band or an aluminum band.
  • the base body module with a guide plane is, for example, a so-called guide ruler, which has a surface that is suitable for guiding the metal strip, the guide plane. It can be formed, for example, by one - or more - wear plate (s) attached to a support body; Support body and wear plate (s) together then form the base body module.
  • the device for lateral guidance can comprise a base body module or a plurality of base body modules. For example, two base body modules, one each for guidance on one side of the metal strip.
  • the guide level is used to guide the metal strip laterally by means of contact with the sides of the metal strip. It limits the freedom of movement of the metal band in its direction, whereby the metal band is guided laterally.
  • the management level is essentially aligned vertically.
  • the device for lateral guidance also includes several wear bodies with wear surfaces.
  • a wear body is a body that is subject to wear as a result of the guidance of the metal strip, namely in an area that is referred to as the wear surface.
  • the wear body is a different component than the base body module, but can be inserted into the base body module or attached to it.
  • the wear body has at least one wear surface; this is turned towards the metal band when the metal band is guided and wears due to contact with the metal band in the course of the lateral guidance of the metal band.
  • the metal band cuts into the wear body and wears it out.
  • the wear surface is essentially flat when it is not worn.
  • the wear surface is the area of the wear body that is provided for guiding the metal strip during operation. This can be a surface before it leads and is worn out. It can also be a surface that has already been ground off due to previous wear and is used again for guidance. Of course, the so-called wear body can also have areas that will not come into contact with the metal strip during operation, for example because of their distance from the pass-line of the finishing train.
  • the wording essentially means that slight deviations from the required properties are flat, vertical, parallel, acceptable. For example, deviations with respect to parallel or vertical up to 5 °, preferably up to 2 °.
  • the wear body can be round or have other contours.
  • the wear body can be rotated into several rotational positions. He can therefore assume at least two rotary positions, between which the operator can choose and control and / or regulate the rotation accordingly. It is also included that the wear body assumes a plurality of rotational positions one after the other while it is being rotated.
  • the wear body can be fixed in a desired rotational position which it has reached by turning, or it can be turned into a further rotational position by further turning.
  • the rotation can also be done very slowly, for example one revolution in 12 hours; During the 12 hours a number of rotating positions are taken one after the other.
  • a looper is provided between two roll stands of the finishing train. There are at least two wear bodies between a roll stand and the looper in the device for lateral guidance.
  • the area of the wear surface of adjacent wear bodies increases in the direction of the looper. If, for example, three wear bodies are arranged between a roll stand and a looper following in the direction of travel of the strip, the wear body directly adjacent to the roll stand has the smallest area of the three wear elements, and the wear element directly adjacent to the looper has the largest area.
  • the middle wear body has a larger area than its neighbor, which is directly adjacent to the roll stand; and a smaller area than its neighbor, which is directly adjacent to the looper. If round wear bodies are involved, the wear body directly adjacent to the roll stand will have the smallest diameter, the wear body directly adjacent to the looper will have the largest diameter, and the wear body arranged between them will have a diameter in between.
  • the loop lifter can be set in different positions - for example pressure or force-controlled - and is in different positions when the finishing train is in operation, depending on the properties of the metal strip.
  • the strip inlet or strip outlet angle is different in each case.
  • the strip entry and strip exit angles relate to the plane in which the roll gaps of the two roll stands are located;
  • the metal strip emerges from the roll gap of the first roll stand, seen in the direction of travel of the strip, and runs its path in the direction of the nearest stand over the looper roller, on which it is deflected. From there it runs into the roll gap of the second roll stand viewed in the direction of strip travel.
  • a wear body can be rotated about an axis of rotation.
  • the axis of rotation is preferably perpendicular to the wear surface.
  • the wear body is preferably a, particularly preferably round, disk with a planar wear surface which is formed by the base surface of the disk.
  • the wear body can be rotated about the axis of rotation, whereby another area is turned towards the edge of the metal band and is worn as a result of the guiding of the metal band through it.
  • the need to replace the wear surface or the wear body can be delayed, since other areas of the edge of the metal strip are repeatedly turned and the wear is therefore evenly distributed over the wear surface. This reduces the effort required to replace worn parts, since replacements are rarely necessary. It can also help prevent packages from piling up in one place. Accordingly, the risk of falling onto the metal strip is reduced.
  • existing packagings can also be sanded off again from the metal strip when the wear body is in a different rotational position.
  • the metal strip moves further and further away from the pass-line of the finishing train. For each position of the looper there is a different outlet and inlet angle and thus a different path.
  • lateral guidance by wear plates is possible at every angle between the pass-line of the finishing train and the metal strip. This is made possible by the fact that the wear plates have larger areas the closer they are to the looper, and can thus also provide lateral guidance as the distance between the metal strip and the pass-line increases.
  • the wear bodies are preferably exchangeable, so that these components can easily be replaced if they are excessively worn. In contrast, a more complex replacement of the base body modules - or parts of the base body modules such as wear plates, for example - is seldom necessary, since the lateral guidance through the wear body alone is sufficient. Since the wear bodies can be rotated in different rotational positions, a new one can always be used Area of the wear surfaces are worn, whereby the wear can be distributed and replacement is less necessary. This saves effort and costs in the maintenance of the device for lateral guidance.
  • At least one wear body can be arranged in a recess of the at least one base body module. If the at least one wear body is arranged in a recess of the at least one base body module, it is possible to simultaneously guide the metal band through the base body module and the wear body - for example, if the wear surface of the wear body does not protrude beyond the guide plane of the base body module, but at least partially in her lies. If the wear surface is essentially flat, as required according to the invention, and lies parallel to the guide plane, this can be the case, because parallel to the guide plane also includes in a plane with the guide plane.
  • the wear surface of the wear body does not protrude beyond the guide plane of the base body module and does not lie in it, but is further away from the metal strip than the guide plane of the base body module - namely when the metal strip cuts so far into the base body module that it also cuts with it the wear surface comes into contact and is thereby guided.
  • the recess is preferably round. This enables simple rotation of a wear body arranged in this recess if it is rotationally symmetrical or rotationally symmetrical with respect to its axis of rotation. If the recess is not completely enclosed by the main body module, in this embodiment the edge of the recess in the main body module follows a part of a circle.
  • the recess can also have other shapes.
  • Variants for the execution of wear bodies can be found which can optionally also be used in the device according to the invention for the lateral guidance of a metal strip running over a metal belt conveyor device in a finishing train comprising at least one base body module with an essentially vertical guide plane.
  • the wear bodies are preferably arranged in such a way that each path leads over each wear surface. It is therefore true for each path that it is partly on each of the wear plates between the roll stand and looper - regardless of the distance from the pass-line the looper roller is, then all wear bodies contribute to the lateral guidance.
  • Another object of the present application is a Device for lateral guidance one between two roll stands of a finishing train running with different paths over a loop lifter that can be set in different positions Metal band, full at least one base body module with an essentially vertical guide plane, as well as several wear bodies with wear surfaces that can be rotated into several rotational positions, the wear surfaces of the wear bodies being essentially flat and essentially parallel to the guide plane in all rotational positions, characterized in that at least two wear bodies are arranged in at least one base body module, the areas of the wear surfaces of adjacent wear bodies being of different sizes.
  • Such a device can be built into a conventional finishing train, for example, so that a finishing train according to the invention is produced. Or it can be installed in a finishing train according to the invention in order to replace an existing device according to the invention or in order to increase the number of devices according to the invention present in the finishing train.
  • the area of the wear surface of directly adjacent wear bodies in a base body module increases from wear body to wear body viewed in the direction of a longitudinal extension of the base body module.
  • a longitudinal extension of the base body module can be seen in the state installed for operation in a finishing train between a roll stand and a looper from the looper in the direction of the roll stand or from the roll stand in the direction of the looper - i.e. in the direction or opposite to the direction in which the metal strip to be guided laterally meets the finishing train runs through in operation.
  • the wear bodies are preferably arranged in such a way that each path leads over each wear surface. It is therefore true for each path that it is partly on each of the wear plates between the roll stand and looper - regardless of the distance from the pass-line the looper roller is, then all wear bodies contribute to the lateral guidance.
  • Another object of the present application is a method for operating a finishing train according to the invention or a device for lateral guidance, characterized in that at least one of the wear bodies is rotated while the metal band is running.
  • the rotation assumes a variety of rotational positions.
  • the rotation can also take place very slowly, for example one rotation in 12 hours.
  • the rotation can also be interrupted by pauses.
  • the wear of the wear elements can be evenly distributed over the wear surface, which helps to extend the replacement intervals.
  • Turning can be done as in WO2015043926A1 take place in defined rotary positions; it can also take place in an undefined rotational position with respect to the axis of rotation in the sense that it is not predetermined by the operator that a specific rotational position is to be assumed at a specific point in time.
  • the path followed by the metal belt is different. It is rotated while the metal strip is running, preferably while the rotated wear element is guided to the side.
  • Figure 1 shows a side view of a detail of how, in a conventional device, a metal strip 1 runs over a loop lifter 4 in the direction indicated by an arrow between two roll stands 2, 3 of a finishing train.
  • plate-shaped wear strips 5a, 5b are provided on the right and left of the looper 4.
  • the loop lifter 4 is adjustable in different positions, which is shown by a double arrow.
  • the metal strip 1 follows a different path from the roll gap 6 of the first roll stand 2 in the direction of strip travel into the roll gap 7 of the second roll stand 3 in the direction of travel. Only the path belonging to the position of the looper 4 shown is shown.
  • Figure 2 shows a section of a finishing train according to the invention with an embodiment of a device according to the invention for lateral guidance as it is installed in a finishing train according to the invention during operation.
  • a side view is shown of a metal strip 13 running between two roll stands 8, 9 of a finishing train with different running paths 10, 11 over a loop lifter 12 adjustable in various positions.
  • the running direction of the metal strip is shown by an arrow.
  • a base body module 14 is shown with an essentially vertical guide plane 15, which is arranged between the last roll stand 8, as seen in the direction of strip travel, and the looper 12.
  • the loop lifter 12, over which the metal band 13 runs, can be set in various positions; this is shown for two positions of the looper roller with a closed outline 16 and a dashed outline 17.
  • the device also comprises three wear bodies 18, 19, 20 which can be rotated into several rotational positions, the wear surfaces 21, 22, 23 of the wear bodies 18, 19, 20 essentially are flat and parallel to the guide plane 15 of the base body module 14 in all rotational positions.
  • the three wear bodies 18, 19, 20 are arranged between the last roll stand 8, as seen in the direction of strip travel, and the looper 12. Viewed from the roll gap 24 in the direction of the looper 12, the area of the wear surface 21, 22, 23 of adjacent wear bodies 18, 19, 20 increases, since the diameters of the three round wear bodies 18, 19, 20 increase.
  • each path leads over each wear surface 21, 22, 23. Regardless of which of the distances shown from the pass-line 25 - shown by a broken line - the looper roller is located, all wear bodies 18, 19, 20 contribute to the lateral guidance. In the operation of the system shown, the wear bodies 18, 19, 20 are rotated - shown by curved arrows, different directions of rotation are possible - while the metal strip 13 runs and is guided by them. For the sake of clarity, the parts for lateral guidance that may be present between the looper 12 and roll stand 9 are not shown; it can, for example, be an arrangement that is a mirror image of the arrangement shown.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Metal Rolling (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)
  • Winding, Rewinding, Material Storage Devices (AREA)
  • Control Of Metal Rolling (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Description

Gebiet der TechnikField of technology

Die vorliegende Erfindung bezieht sich auf eine Vorrichtung zur seitlichen Führung eines zwischen zwei Walzgerüsten einer Fertigstraße mit verschiedenen Laufwegen über einen in verschiedene Positionen einstellbaren Schlingenheber laufenden Metallbandes. EP 2 283 941 A1 bildet die Grundlage für den Obergebriff von Anspruch 1 und offenbart eine Walzstrasse mit Walzgerüsten sowie zwischen den Walzgerüsten angeordneten Schlingenhebern. WO 2015/043926 A1 offenbart eine Vorrichtung zum seitlichen Führen eines Bandes mit drehbaren Schleisskörpern gemäss dem Oberbegriff von Anspruch 3.The present invention relates to a device for the lateral guidance of a metal strip running between two roll stands of a finishing train with different running paths over a loop lifter which can be set in different positions. EP 2 283 941 A1 forms the basis for the preamble of claim 1 and discloses a rolling train with roll stands and loop lifters arranged between the roll stands. WO 2015/043926 A1 discloses a device for laterally guiding a belt with rotatable wear bodies according to the preamble of claim 3.

Stand der TechnikState of the art

Bei der Herstellung von Metallbändern werden diese nach dem Walzen in einem Reversiergerüst in einer Fertigstraße in mehreren Walzgerüsten kontinuierlich gewalzt und mittels Rollgängen mit Laminarwasserkühlung zu Haspelvorrichtungen geleitet, wo sie aufgewickelt werden. In der Fertigstraße ist es notwendig, die Metallbänder einer seitlichen Führung zu unterwerfen, damit zentrischer Einlauf in den Walzspalt der Walzgerüste erfolgt. Vorrichtungen zur seitlichen Führung werden Führungslineale genannt. Die Kanten des laufenden Metallbandes, auf welche die Vorrichtungen zur seitlichen Führung einwirken, verursachen an den - auf den Führungslinealen befestigten - Schleißleisten beziehungsweise deren Schleißflächen Verschleiß. Bei bestimmten Materialqualitäten reiben sich die Bandkanten ab. Das abgeriebene Material kann an den Führungslinealen anhaften und sogenannte Aufpackungen erzeugen. Falls diese auf das Metallband fallen, kann das zu Oberflächenfehlern am Metallband führen. Die Schleißflächen der Schleißleisten müssen daher abhängig vom Produktionsprogramm regelmäßig erneuert und gereinigt werden.In the production of metal strips, after rolling in a reversing stand in a finishing train, they are continuously rolled in several rolling stands and fed to reel devices by means of roller tables with laminar water cooling, where they are wound up. In the finishing train it is necessary to subject the metal strips to a lateral guide so that they run centrally into the roll gap of the roll stands. Devices for lateral guidance are called guide rulers. The edges of the running metal strip, on which the devices for lateral guidance act, cause wear on the wear strips or their wear surfaces, which are attached to the guide rulers. With certain material qualities, the belt edges rub off. The abraded material can adhere to the guide rulers and create so-called packs. If these fall onto the metal belt, this can lead to surface defects on the metal belt. The wear surfaces of the wear strips must therefore be renewed and cleaned regularly, depending on the production program.

Es ist bekannt, zur Verminderung des Aufwandes bei der Erneuerung nicht immer die gesamten Schleißleisten der Führungslineale auszutauschen. Beispielsweise wird in WO2015043926A1 beschrieben, dass in einem Grundkörpermodul mit Führungsebene auch drehbare Schleißkörper vorhanden sind, die das Metallband führen. Nach WO2015043926A1 sind die Schleißkörper kontrolliert in mehrere definierte Drehpositionen drehbar. Nachdem ein erstes Metallband die Metallband-Fördervorrichtung durchlaufen hat, und bevor ein zweites Metallband in die Metallband-Fördervorrichtung einläuft werden die Schleißkörper kontrolliert von einer ersten definierten Drehposition in eine zweite definierte Drehposition gedreht. Das zweite Metallband läuft also nicht durch die vom ersten Metallband in die Schleißfläche des Schleißkörpers eingeschnittene Schleißspur. Stattdessen wird es durch einen erstmals einem Metallband exponierten Bereich der Schleißfläche geführt und schneidet dort allmählich eine neue Schleißspur ein.It is known not always to replace the entire wear strips of the guide rulers in order to reduce the cost of the renewal. For example, in WO2015043926A1 described that in a base body module with a guide plane there are also rotatable wear bodies that guide the metal strip. To WO2015043926A1 the wear bodies are controlled in several defined Rotatable positions. After a first metal belt has passed through the metal belt conveyor and before a second metal belt enters the metal belt conveyor, the wear bodies are rotated in a controlled manner from a first defined rotational position to a second defined rotational position. The second metal band therefore does not run through the wear track cut into the wear surface of the wear body by the first metal band. Instead, it is passed through an area of the wear surface that is exposed to a metal strip for the first time, where it gradually cuts a new wear track.

Beim Walzen in der Fertigstraße ändert sich die Länge des Metallbandes. Zur einfacheren Bandzugregelung beziehungsweise Aufrechterhaltung seiner Spannung trotz Längenänderung sind zwischen den Walzgerüsten in der Fertigstraße sogenannte Schlingenheber installiert. Dabei handelt es sich im Wesentlichen um eine Rolle, deren horizontale Drehachse vertikal verstellbar ist. Das Metallband wird über die Schlingenheberrolle - auch looper roll genannt - gespannt und geführt, wenn deren Oberfläche oberhalb der pass-line der Fertigstraße liegt. Um ein durch Walzen verlängertes und beschleunigtes Metallband gespannt zu halten, wird die Schlingenheberrolle, abhängig von der durch das Metallband erzeugten Kraft auf die Schlingenheberrolle, aus der pass-line nach oben herausbewegt. Je weiter die Drehachse der Schlingenheberrolle über der pass-line liegt, desto größer wird der Bandeinlaufwinkel in den folgenden Walzspalt, beziehungsweise der Bandauslaufwinkel aus dem vorhergehenden Walzspalt - das Metallband hat jeweils einen anderen Laufweg zwischen den beiden Walzspalten. Seitliche Führung soll für das Metallband bei jedem Bandeinlaufwinkel beziehungsweise Bandauslaufwinkel beziehungsweise für jeden Laufweg gegeben sein.When rolling in the finishing train, the length of the metal strip changes. So-called loop lifters are installed between the roll stands in the finishing train to simplify strip tension control or to maintain its tension despite the change in length. This is essentially a roller whose horizontal axis of rotation is vertically adjustable. The metal strip is tensioned and guided over the looper roll - also known as the looper roll - when its surface is above the pass-line of the finishing train. In order to keep a metal band lengthened and accelerated by rolling, the looper roller is moved upwards out of the pass-line, depending on the force on the looper roller generated by the metal band. The further the axis of rotation of the looper roller lies above the pass-line, the larger the strip entry angle into the following roll gap, or the strip exit angle from the previous roll gap - the metal strip has a different path between the two roll gaps. Lateral guidance should be given for the metal strip at each strip entry angle or strip exit angle or for each path.

Austausch oder manuelle Reinigung von führenden Schleißflächen im Bereich der Schlingenheber ist sehr aufwändig und gefährlich, da im Gerüstbereich wenig Platz zur Verfügung steht und - bedingt durch das Walzen des circa 1100°C heißen Metallbandes - hohe Temperaturen herrschen. Solche Tätigkeiten können infolgedessen nur während Stillständen der Fertigstraße erfolgen.Replacing or manually cleaning leading wear surfaces in the area of the looper is very time-consuming and dangerous, as there is little space available in the framework area and - due to the rolling of the metal strip, which is around 1100 ° C - high temperatures prevail. As a result, such activities can only be carried out when the finishing train is shut down.

Zusammenfassung der ErfindungSummary of the invention Technische AufgabeTechnical task

Es ist die Aufgabe der vorliegenden Erfindung, eine Fertigstraße, Vorrichtungen und ein Verfahren zum Betrieb der Vorrichtungen vorzustellen, bei denen bei seitlicher Führung für ein über Schlingenheber geführtes Metallband in einer Fertigstraße bei jedem Bandeinlauf- beziehungsweise Bandauslaufwinkel der Aufwand und die Häufigkeit der Notwendigkeit zum Austausch verschlissener Teile beziehungsweise einer Reinigung von Schleißflächen vermindert ist.It is the object of the present invention to present a finishing train, devices and a method for operating the devices, in which, with lateral guidance for a metal strip guided via a loop lifter in a finishing train, the effort and frequency of the need for replacement at each strip inlet or strip outlet angle worn parts or cleaning of wear surfaces is reduced.

Technische LösungTechnical solution

Diese Aufgabe wird gelöst durch eine
Fertigstraße mit zumindest zwei Walzgerüsten und zumindest einem Schlingenheber, der zwischen zwei benachbarten Walzgerüsten angeordnet und in verschiedene Positionen einstellbar ist,
und mit zumindest einer Vorrichtung zur seitlichen Führung
eines
zwischen zwei Walzgerüsten
mit verschiedenen Laufwegen über den Schlingenheber laufenden Metallbandes,
welche Vorrichtung zur seitlichen Führung
zumindest ein Grundkörpermodul mit einer im Wesentlichen vertikalen Führungsebene, sowie mehrere, in mehrere Drehpositionen drehbare, Schleißkörper mit Schleißfläche, wobei die Schleißflächen der Schleißkörper im Wesentlichen plan und in allen Drehpositionen im Wesentlichen parallel zur Führungsebene sind,
umfasst,
dadurch gekennzeichnet, dass
jeweils zwischen einem der Walzgerüste und dem Schlingenheber zumindest zwei Schleißkörper angeordnet sind,
wobei die Fläche der Schleißfläche benachbarter Schleißkörper
in Richtung des Schlingenhebers gesehen zunimmt.This task is solved by a
Finishing train with at least two roll stands and at least one loop lifter, which is arranged between two adjacent roll stands and can be set in different positions,
and with at least one device for lateral guidance
one
between two roll stands
metal belt running over the looper with different paths,
which device for lateral guidance
at least one base body module with an essentially vertical guide plane, as well as several wear bodies with wear surfaces that can be rotated into several rotational positions, the wear surfaces of the wear bodies being essentially flat and essentially parallel to the guide plane in all rotational positions,
includes,
characterized in that
at least two wear bodies are arranged between one of the roll stands and the looper,
where the area of the wear surface of adjacent wear bodies
seen in the direction of the looper increases.

Die Fertigstraße hat zumindest zwei Walzgerüste.
Zumindest zwischen zwei - in Bandlaufrichtung gesehen - benachbarten Walzgerüsten ist zumindest ein Schlingenheber angeordnet. Wenn mehr als zwei Walzgerüste vorhanden sind, kann auch mehrmals zwischen zwei benachbarten Walzgerüsten zumindest ein Schlingenheber vorhanden sein. Benachbart ist in dabei als nächstgelegen zu verstehen. Wenn beispielsweise drei Walzgerüste A, B, C vorhanden sind, kann zwischen den Nachbarn A und B ein Schlingenheber vorhanden sein, und zwischen den Nachbarn B und C ein Schlingenheber vorhanden sein. In Bandlaufrichtung gesehen sind A und B benachbart, und B und C sind benachbart, A und C sind nicht benachbart.The finishing train has at least two rolling stands.
At least one loop lifter is arranged at least between two adjacent roll stands, viewed in the direction of strip travel. If there are more than two roll stands, at least one loop lifter can also be present several times between two adjacent roll stands. Neighboring is to be understood as the closest. For example, if there are three roll stands A, B, C, a looper can be between neighbors A and B, and a looper between neighbors B and C. Viewed in the direction of travel of the tape, A and B are adjacent, and B and C are adjacent, A and C are not adjacent.

In der Fertigstraße ist zumindest eine Vorrichtung zur seitlichen Führung vorhanden; sie führt das zwischen zwei benachbarten Walzgerüsten über den Schlingenheber laufende Metallband. In der Vorrichtung zur seitlichen Führung, die jeweils zwischen einem der beiden benachbarten Walzgerüste und dem Schlingenheber zwischen diesen beiden benachbarten Walzgerüsten zumindest zwei Schleißkörper aufweist, nimmt die Fläche der Schleißfläche benachbarter Schleißkörper in Richtung des Schlingenhebers gesehen von Schleißkörper zu Schleißkörper zu. Mit anderen Worten ist bei benachbarten Schleißkörpern bei demjenigen Schleißkörper, der sich näher beim Schlingenheber befindet, die Schleißfläche größer als bei dem Schleißkörper, der weiter vom Schlingenheber entfernt ist. Benachbart ist in dabei als nächstgelegen zu verstehen.In the finishing train there is at least one device for lateral guidance; it guides the metal strip running between two adjacent roll stands over the looper. In the device for lateral guidance, which has at least two wear bodies between one of the two adjacent roll stands and the looper between these two adjacent roll stands, the area of the wear surface of adjacent wear elements increases from wear element to wear element when viewed in the direction of the looper. In other words, in the case of adjacent wear bodies, the wear surface of that wear body which is located closer to the looper is larger than that of the wear body which is further away from the looper. Neighboring is to be understood as the closest.

Das Metallband ist beispielsweise ein Stahlband oder ein Aluminiumband.The metal band is, for example, a steel band or an aluminum band.

Das Grundkörpermodul mit Führungsebene ist beispielsweise ein sogenanntes Führungslineal, das eine zur Führung des Metallbandes geeignete Fläche, die Führungsebene, aufweist. Sie kann beispielsweise von einer - oder mehreren - auf einem Stützkörper befestigten Verschleißplatte(n) gebildet sein; Stützkörper und Verschleißplatte(n) zusammen bilden dann das Grundkörpermodul.
Die Vorrichtung zur seitlichen Führung kann ein Grundkörpermodul umfassen oder mehrere Grundkörpermodule. Beispielsweise zwei Grundkörpermodule, zur Führung an einer Seite des Metallbandes jeweils eines.
Die Führungsebene dient zur seitlichen Führung des Metallbandes mittels Kontakt mit den Seiten des Metallbandes. Sie begrenzt die Bewegungsfreiheit des Metallbandes in ihre Richtung, wodurch das Metallband seitlich geführt wird.
Die Führungsebene ist im Wesentlichen vertikal ausgerichtet.The base body module with a guide plane is, for example, a so-called guide ruler, which has a surface that is suitable for guiding the metal strip, the guide plane. It can be formed, for example, by one - or more - wear plate (s) attached to a support body; Support body and wear plate (s) together then form the base body module.
The device for lateral guidance can comprise a base body module or a plurality of base body modules. For example, two base body modules, one each for guidance on one side of the metal strip.
The guide level is used to guide the metal strip laterally by means of contact with the sides of the metal strip. It limits the freedom of movement of the metal band in its direction, whereby the metal band is guided laterally.
The management level is essentially aligned vertically.

Neben dem Grundkörpermodul umfasst die Vorrichtung zur seitlichen Führung auch zusätzlich mehrere Schleißkörper mit Schleißfläche.
Ein Schleißkörper ist ein Körper, der infolge der Führung des Metallbandes Verschleiß unterliegt, und zwar an einem Bereich, der als Schleißfläche bezeichnet wird.
Der Schleißkörper ist ein anderes Bauteil als das Grundkörpermodul, kann aber in das Grundkörpermodul eingesetzt beziehungsweise an ihm befestigt sein.
Der Schleißkörper besitzt zumindest eine Schleißfläche; diese ist bei Führung des Metallbandes dem Metallband zugewendet und verschleißt durch Kontakt mit dem Metallband im Zuge der seitlichen Führung des Metallbandes.
Das Metallband schneidet sich in den Schleißkörper ein und verschleißt ihn somit.In addition to the base body module, the device for lateral guidance also includes several wear bodies with wear surfaces.
A wear body is a body that is subject to wear as a result of the guidance of the metal strip, namely in an area that is referred to as the wear surface.
The wear body is a different component than the base body module, but can be inserted into the base body module or attached to it.
The wear body has at least one wear surface; this is turned towards the metal band when the metal band is guided and wears due to contact with the metal band in the course of the lateral guidance of the metal band.
The metal band cuts into the wear body and wears it out.

Die Schleißfläche ist im unverschlissenen Zustand im Wesentlichen plan. Die Schleißfläche ist der Bereich des Schleißkörpers, der im Betrieb für die Führung des Metallbandes vorgesehen ist. Das kann eine Fläche sein bevor sie führt und verschlissen wird. Es kann auch eine Fläche sein, die durch vorher stattgefundenen Verschleiß schon abgeschliffen ist und erneut zur Führung genutzt wird.
Selbstverständlich kann der sogenannte Schleißkörper auch Bereiche haben, die im Betrieb nicht mit dem Metallband in Berührung kommen werden, beispielsweise aufgrund ihrer Entfernung von der pass-line der Fertigstraße.The wear surface is essentially flat when it is not worn. The wear surface is the area of the wear body that is provided for guiding the metal strip during operation. This can be a surface before it leads and is worn out. It can also be a surface that has already been ground off due to previous wear and is used again for guidance.
Of course, the so-called wear body can also have areas that will not come into contact with the metal strip during operation, for example because of their distance from the pass-line of the finishing train.

Durch die Formulierung im Wesentlichen soll ausgedrückt werden, dass geringfügige Abweichungen von den geforderten Eigenschaften plan, vertikal, parallel, akzeptabel sind. Beispielsweise Abweichungen bezüglich parallel beziehungsweise vertikal bis zu 5°, bevorzugt bis zu 2°.The wording essentially means that slight deviations from the required properties are flat, vertical, parallel, acceptable. For example, deviations with respect to parallel or vertical up to 5 °, preferably up to 2 °.

Der Schleißkörper kann rund sein oder andere Konturen haben.The wear body can be round or have other contours.

Der Schleißkörper ist in mehrere Drehpositionen drehbar. Er kann also zumindest zwei Drehpositionen einnehmen, zwischen denen der Betreiber auswählen und das Drehen entsprechend steuern und/oder regeln kann. Dabei ist mit umfasst, dass der Schleißkörper nacheinander eine Vielzahl von Drehpositionen einnimmt, während er gedreht wird. Der Schleißkörper kann in einer gewünschten Drehposition, die er durch Drehen erreicht hat, fixiert werden, oder aber durch weiteres Drehen in eine weitere Drehposition gedreht werden. Das Drehen kann dabei auch sehr langsam erfolgen, beispielsweise eine Umdrehung in 12 Stunden; in den 12 Stunden wird eine Vielzahl von Drehpositionen nacheinander eingenommen.The wear body can be rotated into several rotational positions. He can therefore assume at least two rotary positions, between which the operator can choose and control and / or regulate the rotation accordingly. It is also included that the wear body assumes a plurality of rotational positions one after the other while it is being rotated. The wear body can be fixed in a desired rotational position which it has reached by turning, or it can be turned into a further rotational position by further turning. The rotation can also be done very slowly, for example one revolution in 12 hours; During the 12 hours a number of rotating positions are taken one after the other.

Zwischen zwei Walzgerüsten der Fertigstraße ist ein Schlingenheber vorhanden. Es sind zumindest zwei Schleißkörper zwischen einem Walzgerüst und dem Schlingenheber vorhanden in der Vorrichtung zur seitlichen Führung.A looper is provided between two roll stands of the finishing train. There are at least two wear bodies between a roll stand and the looper in the device for lateral guidance.

Die Fläche der Schleißfläche benachbarter Schleißkörper nimmt in Richtung des Schlingenhebers zu.
Sind also beispielsweise drei Schleißkörper zwischen einem Walzgerüst und einem in Bandlaufrichtung nachfolgenden Schlingenheber angeordnet, so hat der dem Walzgerüst direkt benachbarte Schleißkörper die kleinste Fläche der drei Schleißkörper, und der dem Schlingenheber direkt benachbarte Schleißkörper die größte Fläche. Der mittlere Schleißkörper hat eine größere Fläche als sein Nachbar, der dem Walzgerüst direkt benachbart ist; und eine kleinere Fläche als sein Nachbar, der dem Schlingenheber direkt benachbart ist. Wenn es sich um runde Schleißkörper handelt, wird also der dem Walzgerüst direkt benachbarte Schleißkörper den kleinsten Durchmesser, der dem Schlingenheber direkt benachbarte Schleißkörper den größten Durchmesser, und der zwischen diesen angeordnete Schleißkörper einen Durchmesser dazwischen haben.The area of the wear surface of adjacent wear bodies increases in the direction of the looper.
If, for example, three wear bodies are arranged between a roll stand and a looper following in the direction of travel of the strip, the wear body directly adjacent to the roll stand has the smallest area of the three wear elements, and the wear element directly adjacent to the looper has the largest area. The middle wear body has a larger area than its neighbor, which is directly adjacent to the roll stand; and a smaller area than its neighbor, which is directly adjacent to the looper. If round wear bodies are involved, the wear body directly adjacent to the roll stand will have the smallest diameter, the wear body directly adjacent to the looper will have the largest diameter, and the wear body arranged between them will have a diameter in between.

Der Schlingenheber ist - beispielsweise druck- oder kraftgeregelt - in verschiedene Positionen einstellbar und befindet sich im Betrieb der Fertigstraße je nach Eigenschaften des Metallbandes in verschiedenen Positionen. Für jede Position des Schlingenhebers ergibt sich ein anderer Laufweg für das Metallband zwischen einem Walzgerüst und dem direkt benachbarten Schlingenheber; es ist jeweils der Bandeinlauf- beziehungsweise Bandauslaufwinkel verschieden. Bandeinlauf- beziehungsweise Bandauslaufwinkel beziehen sich auf die Ebene, in der die Walzspalte der beiden Walzgerüste liegen; aus dem Walzspalt des in Bandlaufrichtung gesehen ersten Walzgerüstes tritt das Metallband aus und läuft seinen Laufweg in Richtung des nächstgelegenen Gerüstes über die Schlingenheberrolle, an der es umgelenkt wirkt. Von dort läuft es in den Walzspalt des in Bandlaufrichtung gesehen zweiten Walzgerüstes ein.The loop lifter can be set in different positions - for example pressure or force-controlled - and is in different positions when the finishing train is in operation, depending on the properties of the metal strip. For each position of the looper there is a different path for the metal strip between a roll stand and the directly adjacent looper; the strip inlet or strip outlet angle is different in each case. The strip entry and strip exit angles relate to the plane in which the roll gaps of the two roll stands are located; The metal strip emerges from the roll gap of the first roll stand, seen in the direction of travel of the strip, and runs its path in the direction of the nearest stand over the looper roller, on which it is deflected. From there it runs into the roll gap of the second roll stand viewed in the direction of strip travel.

Vorteilhafte Wirkungen der ErfindungAdvantageous Effects of the Invention

Ein Schleißkörper ist drehbar um eine Drehachse. Bevorzugt steht die Drehachse senkrecht zur Schleißfläche. Bevorzugt ist der Schleißkörper eine, besonders bevorzugt runde, Scheibe mit planer Schleißfläche, die von der Grundfläche der Scheibe gebildet wird.A wear body can be rotated about an axis of rotation. The axis of rotation is preferably perpendicular to the wear surface. The wear body is preferably a, particularly preferably round, disk with a planar wear surface which is formed by the base surface of the disk.

Um zu verhindern, dass der Verschleiß eines Bereiches der Schleißfläche des Schleißkörpers ein akzeptables Ausmaß übersteigt, kann der Schleißkörper um die Drehachse gedreht werden, wodurch ein anderer Bereich der Kante des Metallbandes zugewendet und infolge der Führung des Metallbandes durch sie verschlissen wird. Durch mehrfaches Drehen kann die Notwendigkeit zum Austausch der Schleißfläche beziehungsweise des Schleißkörpers verzögert werden, da immer wieder andere Bereiche der Kante des Metallbandes zugewendet werden und sich der Verschleiß daher gleichmäßig über die Schleißfläche verteilt. Somit wird der Aufwand zum Austausch verschlissener Teile reduziert, da seltener Austausch notwendig ist.
Außerdem kann dazu beigetragen werden, dass Aufpackungen sich nicht an einer Stelle anhäufen. Entsprechend ist die Gefahr des Herabfallens auf das Metallband vermindert. Zudem können bestehende Aufpackungen gegebenenfalls bei einer anderen Drehposition des Schleißkörpers vom Metallband auch wieder abgeschliffen werden.In order to prevent the wear of an area of the wear surface of the wear body from exceeding an acceptable extent, the wear body can be rotated about the axis of rotation, whereby another area is turned towards the edge of the metal band and is worn as a result of the guiding of the metal band through it. By turning it several times, the need to replace the wear surface or the wear body can be delayed, since other areas of the edge of the metal strip are repeatedly turned and the wear is therefore evenly distributed over the wear surface. This reduces the effort required to replace worn parts, since replacements are rarely necessary.
It can also help prevent packages from piling up in one place. Accordingly, the risk of falling onto the metal strip is reduced. In addition, existing packagings can also be sanded off again from the metal strip when the wear body is in a different rotational position.

Vom Walzgerüst in Richtung Schlingenheber entfernt sich das Metallband immer weiter von der pass-line der Fertigstraße. Für jede Position des Schlingenhebers ergibt sich ein anderer Auslauf- und Einlaufwinkel und damit ein anderer Laufweg.From the roll stand in the direction of the looper, the metal strip moves further and further away from the pass-line of the finishing train. For each position of the looper there is a different outlet and inlet angle and thus a different path.

In einer erfindungsgemäßen Fertigstraße, beziehungsweise mit einer erfindungsgemäßen Vorrichtung, ist bei jedem Winkel zwischen pass-line der Fertigstraße und Metallband seitliche Führung durch Schleißplatten möglich. Das wird dadurch ermöglicht, dass die Schleißplatten mit zunehmender Nähe zum Schlingenheber größere Flächen aufweisen, und somit auch seitliche Führung bei zunehmender Entfernung des Metallbandes von der pass-line bereitstellen können.
Vorzugsweise sind die Schleißkörper austauschbar, so dass bei übermäßigem Verschleiß dieser Bauteile einfach ersetzt werden kann. Ein demgegenüber aufwendigerer Austausch der Grundkörpermodule -beziehungsweise von Teilen der Grundkörpermodule wie beispielsweise Verschleißplatten - ist seltener notwendig, da die seitliche Führung auch durch die Schleißkörper alleine ausreichend ist. Da die Schleißkörper in verschiedene Drehpositionen gedreht werden können, kann immer wieder ein neuer Bereich der Schleißflächen verschlissen werden, wodurch der Verschleiß verteilt werden kann und Austausch seltener notwendig ist.
Das erspart Aufwand und Kosten bei der Instandhaltung der Vorrichtung zur seitlichen Führung.In a finishing train according to the invention, or with a device according to the invention, lateral guidance by wear plates is possible at every angle between the pass-line of the finishing train and the metal strip. This is made possible by the fact that the wear plates have larger areas the closer they are to the looper, and can thus also provide lateral guidance as the distance between the metal strip and the pass-line increases.
The wear bodies are preferably exchangeable, so that these components can easily be replaced if they are excessively worn. In contrast, a more complex replacement of the base body modules - or parts of the base body modules such as wear plates, for example - is seldom necessary, since the lateral guidance through the wear body alone is sufficient. Since the wear bodies can be rotated in different rotational positions, a new one can always be used Area of the wear surfaces are worn, whereby the wear can be distributed and replacement is less necessary.
This saves effort and costs in the maintenance of the device for lateral guidance.

Nach einer bevorzugten Ausführungsform ist zumindest ein Schleißkörper in einer Ausnehmung des zumindest einen Grundkörpermodules anordenbar. Wenn der zumindest eine Schleißkörper in einer Ausnehmung des zumindest einen Grundkörpermodules angeordnet ist, ist es möglich, eine gleichzeitige Führung des Metallbandes durch das Grundkörpermodul und den Schleißkörper vorzunehmen - beispielsweise wenn die Schleißfläche des Schleißkörpers nicht über die Führungsebene des Grundkörpermoduls hinausragt, sondern zumindest teilweise in ihr liegt. Wenn die Schleißfläche wie erfindungsgemäß gefordert im Wesentlichen plan ist und parallel zur Führungsebene liegt, kann das der Fall sein, denn parallel zur Führungsebene umfasst auch in einer Ebene mit der Führungsebene. Oder wenn die Schleißfläche des Schleißkörpers nicht über die Führungsebene des Grundkörpermoduls herausragt und nicht in ihr liegt, sondern vom Metallband weiter entfernt ist als die Führungsebene des Grundkörpermoduls - und zwar dann, wenn das Metallband sich so weit in das Grundkörpermodul einschneidet, dass es auch mit der Schleißfläche in Kontakt kommt und dadurch geführt wird.According to a preferred embodiment, at least one wear body can be arranged in a recess of the at least one base body module. If the at least one wear body is arranged in a recess of the at least one base body module, it is possible to simultaneously guide the metal band through the base body module and the wear body - for example, if the wear surface of the wear body does not protrude beyond the guide plane of the base body module, but at least partially in her lies. If the wear surface is essentially flat, as required according to the invention, and lies parallel to the guide plane, this can be the case, because parallel to the guide plane also includes in a plane with the guide plane. Or if the wear surface of the wear body does not protrude beyond the guide plane of the base body module and does not lie in it, but is further away from the metal strip than the guide plane of the base body module - namely when the metal strip cuts so far into the base body module that it also cuts with it the wear surface comes into contact and is thereby guided.

Bevorzugt ist die Ausnehmung rund. Das ermöglicht einfaches Verdrehen eines in dieser Ausnehmung angeordneten Schleißkörpers, wenn diese bezüglich seiner Drehachse drehsymmetrisch oder rotationssymmetrisch ist.
Wenn die Ausnehmung nicht vollständig vom Grundkörpermodul umschlossen ist, folgt in dieser Ausführungsform der Rand der Ausnehmung im Grundkörpermodul einem Teil eines Kreises.
Die Ausnehmung kann auch andere Formen haben.The recess is preferably round. This enables simple rotation of a wear body arranged in this recess if it is rotationally symmetrical or rotationally symmetrical with respect to its axis of rotation.
If the recess is not completely enclosed by the main body module, in this embodiment the edge of the recess in the main body module follows a part of a circle.
The recess can also have other shapes.

In WO2015043926A1 sind Varianten zur Ausführung von Schleißkörpem zu entnehmen, die gegebenenfalls auch in der erfindungsgemäßen Vorrichtung zur seitlichen Führung eines über eine Metallband-Fördervorrichtung laufenden Metallbandes in einer Fertigstraße umfassend zumindest ein Grundkörpermodul mit einer im Wesentlichen vertikalen Führungsebene anwendbar sind.In WO2015043926A1 Variants for the execution of wear bodies can be found which can optionally also be used in the device according to the invention for the lateral guidance of a metal strip running over a metal belt conveyor device in a finishing train comprising at least one base body module with an essentially vertical guide plane.

In der erfindungsgemäßen Fertigstraße sind die Schleißkörper bevorzugt so angeordnet, dass jeder Laufweg über jede Schleißfläche führt. Für jeden Laufweg gilt also, dass er zum Teil auf jeder der Schleißplatten zwischen Walzgerüst und Schlingenheber liegt - unabhängig davon, in welchem Abstand von der pass-line sich die Schlingenheberrolle befindet, tragen dann alle Schleißkörper zur seitlichen Führung bei.In the finishing train according to the invention, the wear bodies are preferably arranged in such a way that each path leads over each wear surface. It is therefore true for each path that it is partly on each of the wear plates between the roll stand and looper - regardless of the distance from the pass-line the looper roller is, then all wear bodies contribute to the lateral guidance.

Ein weiterer Gegenstand der vorliegenden Anmeldung ist eine
Vorrichtung zur seitlichen Führung
eines
zwischen zwei Walzgerüsten einer Fertigstraße
mit verschiedenen Laufwegen über einen in verschiedene Positionen einstellbaren Schlingenheber laufenden
Metallbandes,
umfassend
zumindest ein Grundkörpermodul mit einer im Wesentlichen vertikalen Führungsebene, sowie mehrere, in mehrere Drehpositionen drehbare, Schleißkörper mit Schleißfläche, wobei die Schleißflächen der Schleißkörper im Wesentlichen plan und in allen Drehpositionen im Wesentlichen parallel zur Führungsebene sind,
dadurch gekennzeichnet, dass
in zumindest einem Grundkörpermodul zumindest zwei Schleißkörper angeordnet sind, wobei die Flächen der Schleißflächen benachbarter Schleißkörper verschieden groß sind.Another object of the present application is a
Device for lateral guidance
one
between two roll stands of a finishing train
running with different paths over a loop lifter that can be set in different positions
Metal band,
full
at least one base body module with an essentially vertical guide plane, as well as several wear bodies with wear surfaces that can be rotated into several rotational positions, the wear surfaces of the wear bodies being essentially flat and essentially parallel to the guide plane in all rotational positions,
characterized in that
at least two wear bodies are arranged in at least one base body module, the areas of the wear surfaces of adjacent wear bodies being of different sizes.

Eine solche Vorrichtung kann beispielsweise in eine herkömmliche Fertigstraße eingebaut werden, so dass eine erfindungsgemäße Fertigstraße entsteht. Oder sie kann in eine erfindungsgemäße Fertigstraße eingebaut werden, um eine bereits vorhandene erfindungsgemäße Vorrichtung auszutauschen oder um die in der Fertigstraße vorhandene Zahl erfindungsgemäßer Vorrichtungen zu erhöhen.Such a device can be built into a conventional finishing train, for example, so that a finishing train according to the invention is produced. Or it can be installed in a finishing train according to the invention in order to replace an existing device according to the invention or in order to increase the number of devices according to the invention present in the finishing train.

In einer erfindungsgemäßen Vorrichtung ist es bevorzugt, dass die Fläche der Schleißfläche direkt benachbarter Schleißkörper in einem Grundkörpermodul in Richtung einer Längserstreckung des Grundkörpermoduls gesehen von Schleißkörper zu Schleißkörper zunimmt.In a device according to the invention, it is preferred that the area of the wear surface of directly adjacent wear bodies in a base body module increases from wear body to wear body viewed in the direction of a longitudinal extension of the base body module.

Eine Längserstreckung des Grundkörpermoduls ist im zum Betrieb in einer Fertigstraße zwischen einem Walzgerüst und einem Schlingenheber eingebauten Zustand vom Schlingenheber in Richtung Walzgerüst beziehungsweise vom Walzgerüst in Richtung Schlingenheber zu sehen - also in Richtung oder entgegen der Richtung, in der das seitlich zu führende Metallband die Fertigstraße im Betrieb durchläuft.A longitudinal extension of the base body module can be seen in the state installed for operation in a finishing train between a roll stand and a looper from the looper in the direction of the roll stand or from the roll stand in the direction of the looper - i.e. in the direction or opposite to the direction in which the metal strip to be guided laterally meets the finishing train runs through in operation.

Es ergeben sich die bereits oben für die Fertigstraße dargelegten Effekte.The effects already outlined above for the finishing mill result.

In der erfindungsgemäßen Vorrichtung sind die Schleißkörper bevorzugt so angeordnet, dass jeder Laufweg über jede Schleißfläche führt. Für jeden Laufweg gilt also, dass er zum Teil auf jeder der Schleißplatten zwischen Walzgerüst und Schlingenheber liegt - unabhängig davon, in welchem Abstand von der pass-line sich die Schlingenheberrolle befindet, tragen dann alle Schleißkörper zur seitlichen Führung bei.In the device according to the invention, the wear bodies are preferably arranged in such a way that each path leads over each wear surface. It is therefore true for each path that it is partly on each of the wear plates between the roll stand and looper - regardless of the distance from the pass-line the looper roller is, then all wear bodies contribute to the lateral guidance.

Mit anderen Worten, im Betrieb in einer Fertigstraße umfasst eine erfindungsgemäße Vorrichtung zur seitlichen Führung
eines zwischen zwei Walzgerüsten einer Fertigstraße
mit verschiedenen Laufwegen über einen in verschiedene Positionen einstellbaren Schlingenheber
laufenden Metallbandes
zumindest ein Grundkörpermodul mit einer im Wesentlichen vertikalen Führungsebene, sowie mehrere, in mehrere Drehpositionen drehbare, Schleißkörper mit Schleißfläche, wobei die Schleißflächen der Schleißkörper im Wesentlichen plan und in allen Drehpositionen im Wesentlichen parallel zur Führungsebene sind,
wobei
jeweils zwischen einem der Walzgerüste und dem Schlingenheber zumindest zwei Schleißkörper angeordnet sind,
wobei die Fläche der Schleißfläche benachbarter Schleißkörper in Richtung des Schlingenhebers gesehen zunimmt,
und bevorzugterweise sind dabei die Schleißkörper (18,19,20) so angeordnet, dass jeder Laufweg über jede Schleißfläche (21,22,23) führt.
Sie ist geeignet zur seitlichen Führung in einer Fertigstraße nach Anspruch 1 oder 2.In other words, during operation in a finishing train, a device according to the invention for lateral guidance comprises
one between two roll stands of a finishing train
with different routes via a loop lifter that can be set in different positions
running metal belt
at least one base body module with an essentially vertical guide plane, as well as several wear bodies with wear surfaces that can be rotated into several rotational positions, the wear surfaces of the wear bodies being essentially flat and essentially parallel to the guide plane in all rotational positions,
in which
at least two wear bodies are arranged between one of the roll stands and the looper,
whereby the area of the wear surface of adjacent wear bodies increases when viewed in the direction of the looper,
and the wear bodies (18, 19, 20) are preferably arranged in such a way that each path leads over each wear surface (21, 22, 23).
It is suitable for lateral guidance in a finishing train according to claim 1 or 2.

Ein weiterer Gegenstand der vorliegenden Anmeldung ist ein Verfahren zum Betrieb einer erfindungsgemäßen Fertigstraße oder Vorrichtung zu seitlichen Führung,
dadurch gekennzeichnet, dass
zumindest einer der Schleißkörper gedreht wird, während das Metallband läuft.Another object of the present application is a method for operating a finishing train according to the invention or a device for lateral guidance,
characterized in that
at least one of the wear bodies is rotated while the metal band is running.

Während der Drehung nimmt er eine Vielzahl von Drehpositionen ein. Das Drehen kann dabei auch sehr langsam erfolgen, beispielsweise eine Umdrehung in 12 Stunden.
Das Drehen kann auch durch Pausen unterbrochen sein.
Durch das Drehen kann der Verschleiß der Schleißkörper gleichmäßig über die Schleißfläche verteilt werden, was die Austauschintervalle verlängern hilft.
Das Drehen kann wie in WO2015043926A1 in definierte Drehpositionen erfolgen; es kann auch erfolgen in undefinierte Drehposition bezüglich der Drehachse in dem Sinne, dass nicht vom Betreiber vorbestimmt ist, dass zu einem bestimmten Zeitpunkt eine bestimmte Drehposition eingenommen werden soll.During the rotation it assumes a variety of rotational positions. The rotation can also take place very slowly, for example one rotation in 12 hours.
The rotation can also be interrupted by pauses.
By turning, the wear of the wear elements can be evenly distributed over the wear surface, which helps to extend the replacement intervals.
Turning can be done as in WO2015043926A1 take place in defined rotary positions; it can also take place in an undefined rotational position with respect to the axis of rotation in the sense that it is not predetermined by the operator that a specific rotational position is to be assumed at a specific point in time.

Für jede Position des Schlingenhebers ergibt sich ein anderer Laufweg des Metallbandes. Je nach Position des Schlingenhebers ist der vom Metallband verfolgte Laufweg verschieden.
Es wird gedreht während das Metallband läuft, bevorzugt während seitliche Führung durch den gedrehten Schleißkörper erfolgt.For each position of the looper there is a different path of the metal belt. Depending on the position of the looper, the path followed by the metal belt is different.
It is rotated while the metal strip is running, preferably while the rotated wear element is guided to the side.

Bevorzugt erfolgt auf jedem Laufweg seitliche Führung durch jeden Schleißkörper. Für jeden Laufweg gilt also, dass er zum Teil auf jeder der Schleißflächen zwischen Walzgerüst und Schlingenheber liegt - unabhängig davon, in welchem Abstand von der pass-line sich die Schlingenheberrolle befindet, tragen dann alle Schleißkörper zur seitlichen Führung bei.Lateral guidance is preferably carried out on each path through each wear body. It is therefore true for every path that it is partly on each of the wear surfaces between the roll stand and looper - regardless of the distance from the pass-line the looper roller is, all wear bodies then contribute to the lateral guidance.

Kurze Beschreibung der ZeichnungenBrief description of the drawings

Nachfolgend wird die vorliegende Erfindung anhand schematischer Figuren beispielhaft beschrieben.

  • Figur 1 zeigt schematisch eine herkömmliche Vorrichtung zur seitlichen Führung eines zwischen zwei Walzgerüsten einer Fertigstraße über einen Schlingenheber laufenden Metallbandes.
  • Figur 2 zeigt schematisch eine Ausführungsform einer erfindungsgemäße Vorrichtung, wie sie in einer erfindungsgemäßen Fertigstraße eingebaut im Betrieb ist.
The present invention is described below by way of example with the aid of schematic figures.
  • Figure 1 shows schematically a conventional device for the lateral guidance of a metal strip running between two roll stands of a finishing train over a looper.
  • Figure 2 shows schematically an embodiment of a device according to the invention, as it is installed in a finishing train according to the invention in operation.

Beschreibung der AusführungsformenDescription of the embodiments BeispieleExamples

Figur 1 zeigt in seitlicher Ansicht ausschnittsweise, wie in eine herkömmliche Vorrichtung ein Metallband 1 in der durch einen Pfeil angegebenen Richtung zwischen zwei Walzgerüsten 2,3 einer Fertigstraße über einen Schlingenheber 4 läuft. Zur seitlichen Führung des laufenden Metallbandes 1 sind rechts und links des Schlingenhebers 4 plattenförmige Schleißleisten 5a,5b vorhanden. Der Schlingenheber 4 ist in verschiedene Positionen einstellbar, was durch einen Doppelpfeil dargestellt ist. Je nach Position folgt das Metallband 1 einem anderen Laufweg vom Walzspalt 6 des in Bandlaufrichtung ersten Walzgerüstes 2 in den Walzspalt 7 des in Bandlaufrichtung zweiten Walzgerüstes 3. Dargestellt ist nur der zur dargestellten Position des Schlingenhebers 4 gehörende Laufweg. Figure 1 shows a side view of a detail of how, in a conventional device, a metal strip 1 runs over a loop lifter 4 in the direction indicated by an arrow between two roll stands 2, 3 of a finishing train. For the lateral guidance of the running metal strip 1, plate-shaped wear strips 5a, 5b are provided on the right and left of the looper 4. The loop lifter 4 is adjustable in different positions, which is shown by a double arrow. Depending on the position, the metal strip 1 follows a different path from the roll gap 6 of the first roll stand 2 in the direction of strip travel into the roll gap 7 of the second roll stand 3 in the direction of travel. Only the path belonging to the position of the looper 4 shown is shown.

Figur 2 zeigt einen Ausschnitt einer erfindungsgemäßen Fertigstraße mit einer Ausführungsform einer erfindungsgemäßen Vorrichtung zur seitlichen Führung wie sie in einer erfindungsgemäßen Fertigstraße eingebaut im Betrieb ist. Es ist in seitlicher Ansicht gezeigt ein zwischen zwei Walzgerüsten 8,9 einer Fertigstraße mit verschiedenen Laufwegen 10,11 über einen in verschiede Positionen einstellbaren Schlingenheber 12 laufendes Metallband 13. Die Laufrichtung des Metallbandes ist durch einen Pfeil dargestellt. Dargestellt ist ein Grundkörpermodul 14 mit einer im Wesentlichen vertikalen Führungsebene 15, das zwischen dem in Bandlaufrichtung gesehen letzten Walzgerüst 8 und dem Schlingenheber 12 angeordnet ist. Der Schlingenheber 12, über den das Metallband 13 läuft, kann in verschiedene Positionen eingestellt werden; das ist für zwei Positionen der Schlingenheberrolle mit geschlossenem Umriss 16 und strichliertem Umriss 17 dargestellt. Der vom Metallband 13 über die oberste mögliche Position des Schlingenhebers verfolgte Laufweg 10 ist durchgezogen dargestellt, der über die untere Position des Schlingenhebers verfolgte Laufweg 11 ist strichliert dargestellt. Die Vorrichtung umfasst auch drei in mehrere Drehpositionen drehbare Schleißkörper 18,19,20, wobei die Schleißflächen 21,22,23 der Schleißkörper 18,19,20 im Wesentlichen plan und in allen Drehpositionen parallel zur Führungsebene 15 des Grundkörpermoduls 14 sind. Die drei Schleißkörper 18,19,20 sind zwischen dem in Bandlaufrichtung gesehen letzten Walzgerüst 8 und dem Schlingenheber 12 angeordnet. Vom Walzspalt 24 in Richtung des Schlingenhebers 12 gesehen nimmt die Fläche der Schleißfläche 21,22,23 benachbarter Schleißkörper 18,19,20 zu, da die Durchmesser der drei runden Schleißkörper 18,19,20 zunehmen. In der dargestellten Ausführungsform führt jeder Laufweg über jede Schleißfläche 21,22,23. Unabhängig davon, in welchem der dargestellten Abstände von der pass-line 25 - dargestellt durch eine unterbrochene Linie - sich die Schlingenheberrrolle befindet, tragen alle Schleißkörper 18,19,20 zur seitlichen Führung bei.
Im Betrieb der dargestellten Anlage werden die Schleißkörper 18,19,20 gedreht - dargestellt durch gebogene Pfeile, verschiedene Drehrichtungen sind möglich -, während das Metallband 13 läuft und von ihnen geführt wird.
Auf eine Darstellung der zwischen Schlingenheber 12 und Walzgerüst 9 gegebenenfalls vorhandenen Teile zur seitlichen Führung wird aus Gründen der Übersichtlichkeit verzichtet; es kann sich beispielsweise um eine zur dargestellten Anordnung spiegelbildliche Anordnung handeln. Figure 2 shows a section of a finishing train according to the invention with an embodiment of a device according to the invention for lateral guidance as it is installed in a finishing train according to the invention during operation. A side view is shown of a metal strip 13 running between two roll stands 8, 9 of a finishing train with different running paths 10, 11 over a loop lifter 12 adjustable in various positions. The running direction of the metal strip is shown by an arrow. A base body module 14 is shown with an essentially vertical guide plane 15, which is arranged between the last roll stand 8, as seen in the direction of strip travel, and the looper 12. The loop lifter 12, over which the metal band 13 runs, can be set in various positions; this is shown for two positions of the looper roller with a closed outline 16 and a dashed outline 17. The path 10 followed by the metal strip 13 over the uppermost possible position of the looper is shown in solid lines, the path 11 followed over the lower position of the looper is shown in dashed lines. The device also comprises three wear bodies 18, 19, 20 which can be rotated into several rotational positions, the wear surfaces 21, 22, 23 of the wear bodies 18, 19, 20 essentially are flat and parallel to the guide plane 15 of the base body module 14 in all rotational positions. The three wear bodies 18, 19, 20 are arranged between the last roll stand 8, as seen in the direction of strip travel, and the looper 12. Viewed from the roll gap 24 in the direction of the looper 12, the area of the wear surface 21, 22, 23 of adjacent wear bodies 18, 19, 20 increases, since the diameters of the three round wear bodies 18, 19, 20 increase. In the embodiment shown, each path leads over each wear surface 21, 22, 23. Regardless of which of the distances shown from the pass-line 25 - shown by a broken line - the looper roller is located, all wear bodies 18, 19, 20 contribute to the lateral guidance.
In the operation of the system shown, the wear bodies 18, 19, 20 are rotated - shown by curved arrows, different directions of rotation are possible - while the metal strip 13 runs and is guided by them.
For the sake of clarity, the parts for lateral guidance that may be present between the looper 12 and roll stand 9 are not shown; it can, for example, be an arrangement that is a mirror image of the arrangement shown.

Obwohl die Erfindung im Detail durch die bevorzugten Ausführungsbeispiele näher illustriert und beschrieben wurde, so ist die Erfindung nicht durch die offenbarten Beispiele eingeschränkt und andere Variationen können vom Fachmann hieraus abgeleitet werden, ohne den Schutzumfang der Erfindung zu verlassen.Although the invention has been illustrated and described in more detail by the preferred exemplary embodiments, the invention is not restricted by the disclosed examples and other variations can be derived therefrom by the person skilled in the art without departing from the scope of protection of the invention.

Liste der BezugszeichenList of reference symbols

11
MetallbandMetal band
22
WalzgerüstRoll stand
33
WalzgerüstRoll stand
44th
SchlingenheberLoop lifter
5a,5b5a, 5b
SchleißleistenWear strips
66th
WalzspaltRoll gap
77th
WalzspaltRoll gap
88th
WalzgerüstRoll stand
99
WalzgerüstRoll stand
1010
LaufwegWalkway
1111
LaufwegWalkway
1212th
SchlingenheberLoop lifter
1313th
MetallbandMetal band
1414th
GrundkörpermodulBasic body module
1515th
FührungsebeneManagement level
1616
Umriss SchlingenheberrolleOutline looper roller
1717th
Umriss SchlingenheberrolleOutline looper roller
1818th
SchleißkörperWear body
1919th
SchleißkörperWear body
2020th
SchleißkörperWear body
2121st
SchleißflächeWear surface
2222nd
SchleißflächeWear surface
2323
SchleißflächeWear surface
2424
WalzspaltRoll gap
2525th
Pass-linePass-line
Liste der AnführungenList of citations

Patentliteratur
WO2015043926A1 Patent literature
WO2015043926A1

Claims (7)

  1. Finishing train having at least two roll stands and at least one loop lifter which is disposed between two neighboring roll stands and is adjustable to various positions,
    and having at least one device for laterally guiding a metal strip (1, 13) that by way of different paths runs across the loop lifter (4, 12) between two roll stands (2, 3, 8, 9),
    said device for lateral guiding comprising
    at least one main member module (14) having a substantially vertical guiding plane (15),
    and a plurality of wear members (18, 19, 20) which are rotatable to a plurality of rotary positions and which have a wear face (21, 22, 23), wherein the wear faces (21, 22, 23) of the wear members (18, 19, 20) are substantially planar and in all rotary positions are substantially parallel to the guiding plane (15),
    characterized in that
    at least two wear members (18, 19, 20) are in each case disposed between one of the roll stands (2, 3, 8, 9) and the loop lifter,
    wherein the area of the wear face (21, 22, 23) of neighboring wear members (18, 19, 20) increases when viewed in the direction of the loop lifter (4, 12).
  2. Finishing train according to Claim 1, characterized in that the wear members (18, 19, 20) are disposed such that each path leads across each wear face (21, 22, 23).
  3. Device for laterally guiding a metal strip (1, 13) that by way of different paths runs across a loop lifter (4, 12) that is adjustable to various positions between two roll stands (2, 3, 8, 9) of a finishing train,
    comprising
    at least one main member module (14) having a substantially vertical guiding plane (15),
    and a plurality of wear members (18, 19, 20) which are rotatable to a plurality of rotary positions and which have a wear face (21, 22, 23), wherein the wear faces (21, 22, 23) of the wear members (18, 19, 20) are substantially planar and in all rotary positions are substantially parallel to the guiding plane (15),
    characterized in that
    at least two wear members (18, 19, 20) are disposed in at least one main member module (4), wherein the areas of the wear faces (21, 22, 23) of neighboring wear members (18, 19, 20) are of dissimilar sizes.
  4. Device according to Claim 3, characterized in that the area of the wear face of directly neighboring wear members in a main member module, when viewed in the direction of a longitudinal extent of the main member module, increases from one wear member to another wear member.
  5. Device according to Claim 3 or 4, characterized in that the wear members (18, 19, 20) are disposed such that each path leads across each wear face (21, 22, 23).
  6. Method for operating a finishing train according to Claim 1 or 2, or a device according to one of Claims 3 to 5, characterized in that
    at least one of the wear members (18, 19, 20) is rotated while the metal strip (1, 13) is running.
  7. Method according to Claim 6, characterized in that lateral guiding by each wear member (18, 19, 20) is performed on each path (10, 11).
EP18728354.4A 2017-06-02 2018-05-29 Device for guiding metal strips having wear bodies in a finishing train Active EP3630382B1 (en)

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RS20211275A RS62451B1 (en) 2017-06-02 2018-05-29 Device for guiding metal strips having wear bodies in a finishing train
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EP17174195.2A EP3409388A1 (en) 2017-06-02 2017-06-02 Device for guiding metal strips having wear bodies in a finishing train
PCT/EP2018/064064 WO2018219946A1 (en) 2017-06-02 2018-05-29 Device for guiding metal strips with wearing bodies in a finishing train

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US20220331850A1 (en) 2022-10-20
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US11806769B2 (en) 2023-11-07
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EP3409388A1 (en) 2018-12-05
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TW201902596A (en) 2019-01-16
RU2728360C1 (en) 2020-07-29
JP2021028089A (en) 2021-02-25
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SA519410706B1 (en) 2022-04-20
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