EP2825332B1 - Dispositif et procédé servant à redresser une bande métallique - Google Patents

Dispositif et procédé servant à redresser une bande métallique Download PDF

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Publication number
EP2825332B1
EP2825332B1 EP13711601.8A EP13711601A EP2825332B1 EP 2825332 B1 EP2825332 B1 EP 2825332B1 EP 13711601 A EP13711601 A EP 13711601A EP 2825332 B1 EP2825332 B1 EP 2825332B1
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EP
European Patent Office
Prior art keywords
straightening
metal strip
setting elements
rolls
measuring
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.)
Withdrawn - After Issue
Application number
EP13711601.8A
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German (de)
English (en)
Other versions
EP2825332A1 (fr
Inventor
Frank-Günter BENNER
Roman Dehmel
Rolf Franz
Matthias Kipping
Peter Jollet
Jens ARTEL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SMS Group GmbH
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SMS Group GmbH
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Filing date
Publication date
Application filed by SMS Group GmbH filed Critical SMS Group GmbH
Publication of EP2825332A1 publication Critical patent/EP2825332A1/fr
Application granted granted Critical
Publication of EP2825332B1 publication Critical patent/EP2825332B1/fr
Withdrawn - After Issue legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
    • B21D1/02—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling by rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B37/00—Control devices or methods specially adapted for metal-rolling mills or the work produced thereby
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/40—Control of flatness or profile during rolling of strip, sheets or plates using axial shifting of the rolls
    • 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
    • B21B38/02—Methods or devices for measuring, detecting or monitoring specially adapted for metal-rolling mills, e.g. position detection, inspection of the product for measuring flatness or profile of strips

Definitions

  • the invention relates to a device for straightening metal strip according to the preamble of claim 1 and to a method for straightening metal strip having the features of claim 12.
  • US 4,881,392 describes a system for straightening a metal strip, in which a straightening section of a rolling mill is arranged downstream and a measuring device for flatness measurement of the metal strip is again arranged in the strip running direction below the straightening section.
  • EP 0 035 009 A1 describes a device for supporting a work roll of a sheet metal bending or straightening machine.
  • the machine comprises distributed over the length of work rolls distributed support rollers, which are supported via adjusting drives on a support.
  • the support rollers are mounted in a common frame, which is height adjustable via a wedge drive.
  • US 5,758,533 A1 discloses a leveler according to the preamble of claim 1.
  • US 2,091,789 discloses a sheet metal straightening machine with adjustable over a common carrier support rollers acting on the sheet straightening roller.
  • DE 34 12 486 A1 discloses a straightening machine for sheet metal strip with two interrogation units for the determination of Blechbandunregelwhikeiten each before and behind guide roller pairs, which are respectively arranged at the beginning and at the end of a straightening.
  • At least three successively arranged in the strip running direction groups of at least three actuators are provided, which form a total of a field of individually controllable actuators, by means of several in the strip running direction successively arranged straightening rollers independent in their respective bending curve can be adjusted.
  • a field of actuators generally allows a particularly accurate correction of belt errors by the straightening process.
  • local correction can be carried out dynamically, in particular in relatively short sections of the band.
  • Such relatively local band errors can first be detected, for example, by a measuring device arranged on the input side of the device.
  • the actuators comprise a hydraulic cylinder.
  • Hydraulic cylinders can be adjusted quickly and in a wide range to the respective requirements of straightening forces.
  • Keilangnan or the like can be used as actuators.
  • At least one, preferably more of the groups of actuators is supported on a dimensionally stable traverse.
  • a dimensionally stable within the meaning of the invention is to be understood that an area moment of inertia of the traverse corresponds to at least a multiple of a moment of inertia of the leveling rolls.
  • a tilting of the traverse about the strip running direction can be adjustable by means of at least one trussing actuator. This results in further adjustment of the device.
  • the traverse actuators may also preferably be hydraulic actuators, alternatively or additionally, but also wedge adjustments or threaded adjustments.
  • end-side storage areas of at least one of the straightening rollers can be adjusted in an adjustable way by lateral actuators, in particular in a direction opposite to the actuators.
  • lateral actuators may be formed as a hydraulic cylinder.
  • the actuators may act on a support arrangement for a plurality of support rollers, the support rollers transmitting a force of the actuators to one of the straightening rollers.
  • the retaining arrangement comprises a chain of bearing sections connected to one another in the axial direction for the support rollers.
  • the arrangement of a measuring system already before the groups of straightening rollers can be a particularly accurate measurement, due to which the number of passes through the straightening can be minimized.
  • it can be decided by the upstream measuring system whether straightening must take place at all.
  • the tape can then not pass through the straightening or without pressure of straightening rollers.
  • the measuring systems comprise an optical, in particular laser-optical, measurement of the shape of the metal strip, the metal strip being guided predominantly without tension at least in the area of the measuring installations.
  • a predominantly tension-free guidance is given when tensile forces caused by the strip guide are kept so low that they only negligibly influence a spatial deformation of the strip.
  • the object of the invention is also achieved by a method for straightening a metal strip having the features of claim 12.
  • the process of straightening can be optimized and the number of possibly necessary passes through the Minimize the guideway. It goes without saying that the optimization is computer-aided on the basis of the measurement results. In doing so, data of previous runs of the same band and / or stored models, in particular concerning the material to be straightened, the firing masses, etc. are used.
  • step d. a repetition of steps b. and c. he follows.
  • a second or nth tape pass can take place in the direction opposite to the previous pass.
  • FIG. 1 shown apparatus for straightening a metal strip is shown only in the scope of a present upper half, comprising several in a strip running direction (perpendicular to the plane in FIG Fig. 1 ) Straightening rollers 1 arranged one behind the other.
  • a straightening roller 1 is in each case subjected to a force by a group of actuators 2 which are arranged next to one another in the transverse direction or axial direction over the length of the straightening roller 1.
  • the actuators each include a force introduction unit in the form of a separately and automatically controlled hydraulic cylinder 2a, which acts on a bearing portion 3 of a chain 4 of bearing sections.
  • a piston end of the actuator 2a can tiltably press on the bearing portion, for example in a corresponding shape (not shown). It is understood that an employed by the actuators bending curve of the straightening rollers 1, in Fig. 1 .
  • FIG. 3 and FIG. 4 is exaggerated for the sake of illustration.
  • a pair of support rollers 5 is rotatably mounted in each case, which press on the straightening rollers 1 and so adjust their bending curve during rotation.
  • Fig. 5a to Fig. 5f Various alternative embodiments of the chain of bearing sections are shown.
  • the bearing sections 3 abut flush against each other, wherein the cooperating end faces can be formed depending on the requirements.
  • Fig. 5a shows a simple shape with flat faces.
  • Fig. 5b shows a two convexities, by which the friction surface is reduced.
  • Fig. 5c shows a concave end face, in which engages an adjacent, convex end face, so that the exact position of the bearing sections is adjusted relative to each other.
  • Fig. 5d shows a connection through an elastic connector between the bearing portions, which may be made of metal or other material.
  • Fig. 5f shows one
  • the actuators 2 are supported with their hydraulic cylinders on the side opposite the straightening roller on a rigid or dimensionally stable traverse 6.
  • the traverse is tiltably adjustable over two existing truss actuators 7 to provide a further adjustment option for straightening and / or movability of the traverse for maintenance purposes.
  • the truss actuators 7 are also designed as hydraulic cylinders.
  • the straightening rollers 7 are added to end bearings in pivot bearings 8, which in turn are each supported by lateral actuators 9 adjustable in force on the cross member 6.
  • the lateral actuators 9 can be subjected to a force in opposite direction to the actuators 2 in order to adjust the bending curve of the straightening rollers 7.
  • each of the successively arranged, in the present case, five straightening rollers 1 is largely individually adjustable in its bending course.
  • a group of adjacently arranged in the axial direction actuators 2 is provided for each of the straightening rollers 1.
  • each of the five straightening rollers 1 is adjusted by a group of five adjacently arranged adjacently in the transverse direction of actuators 2, so that a total of a field of 5X5 separately adjustable actuators 2 results.
  • the five straightening rollers 1 are each end received in beams 10, in which the pivot bearing 8 of the straightening rollers 1 are arranged.
  • Each of the two bars 10 is held by one of the lateral actuators 9.
  • the bars are expediently guided so that no tilting can occur in the direction of tape travel.
  • a plurality of lateral actuators 9 can also act on the same beam 10. It can also alternatively every single one Straightening rollers 1 be added end in a lateral actuator 7 or more, for example, two straightening rollers are summarized over a respective beam with respect to their pivot bearing.
  • All of the hydraulic cylinders described herein preferably have a circular cross-section. It is a principle of the present invention to use as many standard actuators of the same design and to dispense with special constructions such as cylinders with oblong cross-section.
  • the above-described upper half of the device may be substantially symmetrical as a lower part with a group of lower leveling rolls 1 '(see schematically in FIG Fig. 6 ) be repeated.
  • This allows one to Fig. 1 inverse bending of the straightening roller shown as in Fig. 3 Achieve, with the employment by shear forces of (not shown) actuators of the lower half takes place.
  • Fig. 4 In employment according to Fig. 4 is a linear tilt of the straightening roller to the strip running direction. Such tilting can take place via the actuators 2, 7, as shown, or else via a tilting of the traverse 6.
  • the schematic side view according to Fig. 6 shows a device as described above, in addition, in the strip running direction upstream of a first measuring system 11 and a second measuring system 12 is arranged downstream.
  • the measuring systems 11, 12 are of identical design and measure each unevenness of the largely unstressed metal strip 13 by means of optical systems, in particular laser-optical systems.
  • Fig. 6 a method in which, according to the invention, the topography or flatness and / or the residual stresses of the metal strip 13 are first determined before straightening.
  • data is generated for this purpose, which via a connection 11a into an electronic control unit or a installed on it model 14 are fed.
  • the metal strip 13 may be for measuring, for example, on rollers 15 and thereby scanned. It is also conceivable that the flatness and / or residual stresses of the metal strip are detected during the run. For this purpose, a reversing operation would be possible.
  • all straightening rollers 1, but at least the upper straightening rollers 1 are equipped with sensors 16 and actuators 17 and connected via the connections 18 with the model 14.
  • the sensors may e.g. Measure forces, moments, positions, inclinations, deformations, etc.
  • the actuators for example the actuators 2 described above, are capable of transmitting forces and moments to approach or generate positions such as paths, slopes, deformations and so on. As a result, as many positions and deformations of the individual straightening rollers 1 and thus positions of the straightening rollers can be approached relative to each other.
  • the metal strip 13 By the straightening rollers downstream, further measuring system 12, the metal strip 13 would at least optionally re-measured after the straightening process.
  • the resulting data is provided via a connection 12a the model 14.
  • the model 14 is depicted in one or more computers and consists of further implemented submodels. These are material models for the materials to be straightened, models for imaging the straightening process, mechanical models for imaging the machine parts and their cooperation during straightening, models for processing the sensor signals, models for processing and processing the geometry (flatness / flatness error) and residual stresses of the straightening material 13, models for controlling flatness errors, model for driving the actuators of the straightening machine, etc.
  • the local immersion depth E1 in the plane P_1 to the immersion depth En in the plane P_n can be adjusted by the model 14 according to the requirements of the end product.
  • a local immersion depth is not only the parallel directional gap RS to understand, but also a non-constant guide gap RS, which can arise by tilting and bending at least one of the straightening rollers 1.
  • the straightening machine can be operated with the aid of the model 14 so that it can change the immersion depths and the straightening gaps statically or dynamically (during the straightening process). It is also conceivable that the span a is variable by moving the straightening rollers 1 and is controlled or regulated by the model 14.
  • the normal or first direction of passage of the metal strip 13 takes place from right to left according to Fig. 6 ,
  • the level 19 can be used as a reference level for the measuring systems and for the immersion depth.
  • a possible second pass can be carried out in particular from left to right, in particular in the case of a tandem measuring system.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Straightening Metal Sheet-Like Bodies (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Claims (13)

  1. Dispositif pour le dressage de bandes métalliques comprenant :
    un premier groupe, supérieur (1) et un deuxième groupe inférieur (1') de rouleaux de dressage disposés dans une direction de défilement de la bande, respectivement directement les uns derrière les autres ; et
    un groupe d'éléments de réglage (2) qui peuvent être excités de manière individuelle, disposés les uns à côté des autres dans une direction transversale et au moins un deuxième groupe d'éléments de réglage (2) qui peuvent être excités de manière individuelle, disposés les uns à côté des autres dans la direction transversale ;
    caractérisé en ce que, via le groupe d'éléments de réglage (2), on peut régler une allure de flexion axiale d'au moins un premier galet parmi les rouleaux de dressage (1) et, via le deuxième groupe d'éléments de réglage, on peut régler une allure de flexion axiale d'au moins un deuxième galet parmi les rouleaux de dressage (1), en s'écartant de l'allure de flexion du premier rouleau de dressage (1).
  2. Dispositif selon la revendication 1, caractérisé en ce qu'on prévoit au moins trois groupes respectivement d'au moins trois éléments de réglage (2), disposés les uns après les autres dans la direction de défilement de la bande, qui forment au total un champ d'éléments de réglage (2) qui peuvent être excités de manière individuelle, au moyen duquel on peut régler de manière indépendante plusieurs rouleaux de dressage (1) disposés les uns après les autres dans la direction de défilement de la bande, en ce qui concerne leur allure de flexion respective.
  3. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que les éléments de réglage (2) comprennent un cylindre hydraulique (2a).
  4. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce qu'au moins un groupe, en particulier plusieurs groupes d'éléments de réglage (2) s'appuient contre une traverse (6) résistant à la déformation.
  5. Dispositif selon la revendication 4, caractérisé en ce qu'on peut régler un basculement de la traverse (6) autour de la direction de défilement de la bande au moyen d'au moins un élément de réglage de traverse (7).
  6. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce que des zones de palier (8) côté terminal d'au moins un des rouleaux de dressage peuvent être sollicitées de manière réglable au moyen d'éléments de réglage latéraux (9), en particulier dans une direction opposée à celle des éléments de réglage (2).
  7. Dispositif selon l'une quelconque des revendications précédentes, caractérisé en ce les éléments de réglage (2) agissent sur un agencement de maintien (4) pour un certain nombre de galets de support (5), les galets de support (5) transmettant une force des éléments de réglage (2) à un rouleau de dressage (1).
  8. Dispositif selon la revendication 7, caractérisé en ce que l'agencement de maintien comprend une chaîne (4) de tronçons de paliers (3) reliés les uns aux autres en direction axiale, pour les galets de support (5).
  9. Dispositif pour le dressage de bandes métalliques selon l'une quelconque des revendications précédentes, caractérisé en ce qu'une installation de mesure (11, 12) est disposée, aussi bien avant qu'après les groupes de rouleaux de dressage (1, 1'), par laquelle on peut mesurer les défauts de planéité et/ou les tensions dans la bande métallique (13), les deux installations de mesure (11, 12) pouvant être sollicitées pour un réglage des rouleaux de dressage (1) dans le même processus de dressage.
  10. Dispositif selon la revendication 9, caractérisé en ce que les installations de mesure (11, 12) comprennent une mesure optique, en particulier une mesure optique par laser, de la forme de la bande métallique (13), la bande métallique (13) étant guidée principalement en l'absence de tension au moins dans la zone des installations de mesure (11, 12).
  11. Procédé pour le dressage d'une bande métallique au moyen d'un dispositif selon l'une quelconque des revendications précédentes, comprenant les étapes consistant à :
    a. on mesure la forme et/ou les tensions d'une bande métallique (13) au moyen d'une installation de mesure (11) avant un premier passage à travers à tronçon de dressage ;
    b. on règle les rouleaux de dressage (1) du tronçon de dressage en fonction de la mesure de la bande métallique (13), en particulier au moyen d'une unité de commande électronique (14) ;
    c. on procède au dressage de la bande métallique (13) en la faisant passer à travers le tronçon de dressage ;
    d. on mesure la forme et/ou les tensions de la bande métallique (13) au moyen d'une deuxième installation de mesure (12) du côté sortie du tronçon de dressage.
  12. Procédé selon la revendication 11, caractérisé en ce que, en fonction du résultat de mesure à l'étape d., on procède à une répétition des étapes b. et c.
  13. Procédé selon la revendication 12, caractérisé en ce que la bande métallique (13) traverse le tronçon de dressage, lors de processus de dressage successifs, chaque fois dans le sens contraire.
EP13711601.8A 2012-03-15 2013-03-12 Dispositif et procédé servant à redresser une bande métallique Withdrawn - After Issue EP2825332B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE201210204074 DE102012204074A1 (de) 2012-03-15 2012-03-15 Vorrichtung zum Richten von Metallband
PCT/EP2013/054989 WO2013135688A1 (fr) 2012-03-15 2013-03-12 Dispositif servant à redresser une bande métallique

Publications (2)

Publication Number Publication Date
EP2825332A1 EP2825332A1 (fr) 2015-01-21
EP2825332B1 true EP2825332B1 (fr) 2015-08-19

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EP13711601.8A Withdrawn - After Issue EP2825332B1 (fr) 2012-03-15 2013-03-12 Dispositif et procédé servant à redresser une bande métallique

Country Status (8)

Country Link
US (1) US20150027185A1 (fr)
EP (1) EP2825332B1 (fr)
JP (1) JP2015509852A (fr)
KR (1) KR20140125454A (fr)
CN (1) CN104379271A (fr)
DE (1) DE102012204074A1 (fr)
RU (1) RU2014141509A (fr)
WO (1) WO2013135688A1 (fr)

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Publication number Priority date Publication date Assignee Title
DE102019201480A1 (de) 2019-02-06 2020-08-06 Sms Group Gmbh Rollenrichtmaschine

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US10285077B2 (en) * 2013-10-31 2019-05-07 Telefonaktiebolaget Lm Ericsson (Publ) Method, communication device and computer program
KR101701571B1 (ko) * 2014-11-26 2017-02-02 현대제철 주식회사 단조품 교정 장치
DE102014226519A1 (de) * 2014-12-19 2016-06-23 Sms Group Gmbh Presswerkzeugteil und Vorrichtung zum Beseitigen von Planheitsfehlern an flächigen Halbzeugen
DE102015213788A1 (de) * 2015-07-22 2017-01-26 Sms Group Gmbh Anlage und Verfahren zum Beseitigen von Planheitsfehlern eines metallischen Flachprodukts
EP3595824B1 (fr) * 2017-03-13 2023-06-07 SMS Group GmbH Procédé de fonctionnement d'une dresseuse à rouleaux
CN107755465B (zh) * 2017-11-29 2024-01-12 无锡市斯威克科技有限公司 一种用于多根涂锡铜带同时校直装置
JP2023064472A (ja) * 2021-10-26 2023-05-11 株式会社アマダ コイル材矯正装置、コイル材矯正方法及びコイル材矯正プログラム
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102019201480A1 (de) 2019-02-06 2020-08-06 Sms Group Gmbh Rollenrichtmaschine

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Publication number Publication date
RU2014141509A (ru) 2016-05-10
DE102012204074A1 (de) 2013-09-19
EP2825332A1 (fr) 2015-01-21
CN104379271A (zh) 2015-02-25
JP2015509852A (ja) 2015-04-02
KR20140125454A (ko) 2014-10-28
WO2013135688A1 (fr) 2013-09-19
US20150027185A1 (en) 2015-01-29

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