WO2007048477A1 - Procede pour detecter des bords de feuillards - Google Patents

Procede pour detecter des bords de feuillards Download PDF

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Publication number
WO2007048477A1
WO2007048477A1 PCT/EP2006/009411 EP2006009411W WO2007048477A1 WO 2007048477 A1 WO2007048477 A1 WO 2007048477A1 EP 2006009411 W EP2006009411 W EP 2006009411W WO 2007048477 A1 WO2007048477 A1 WO 2007048477A1
Authority
WO
WIPO (PCT)
Prior art keywords
band
edge
strip
computer
determined
Prior art date
Application number
PCT/EP2006/009411
Other languages
German (de)
English (en)
Inventor
Hartmut Pawelski
Hans-Peter Richter
Andreas Runge
Original Assignee
Sms Demag Ag
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Sms Demag Ag filed Critical Sms Demag Ag
Priority to EP06792297A priority Critical patent/EP1945384A1/fr
Priority to JP2008536957A priority patent/JP2009512559A/ja
Priority to CA002625494A priority patent/CA2625494A1/fr
Priority to BRPI0617752-2A priority patent/BRPI0617752A2/pt
Priority to US12/083,186 priority patent/US20090113968A1/en
Publication of WO2007048477A1 publication Critical patent/WO2007048477A1/fr

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
    • G01B11/028—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by measuring lateral position of a boundary of the object
    • 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
    • B21B37/68—Camber or steering control for strip, sheets or plates, e.g. preventing meandering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B2273/00—Path parameters
    • B21B2273/04—Lateral deviation, meandering, camber of product
    • 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
    • B21B37/58—Roll-force control; Roll-gap control
    • 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

Definitions

  • the invention relates to a method for tape edge detection in a cold rolling mill and / or belt system, in which by means of two optical detection systems contactless, the band edges are continuously recorded.
  • a method for controlling the strip running during rolling, in particular finish rolling of self-luminous hot strip in one of several rolling mills arranged successively rolling train in dependence on the position of the two band edges comprises the combination of the following features:
  • a contactless, optical measuring device is arranged in the direction of passage of the strip behind at least one rolling mill Band edge outgoing line simultaneously recorded both band edges.
  • the distances between the strip edges are determined by a reference point corresponding to the middle of the rolling train.
  • an actuating signal for an adjusting device for adjusting the nip of the roll stand is formed.
  • the strip run is corrected by adjusting the nip of the rolling mill immediately upstream of the measuring device in the direction of the strip.
  • a measuring device a line scan camera is used.
  • JP 6 147 856 a device is known, in which the strip edges of a rolling stock are recorded without contact by means of two cameras and conclusions are drawn by evaluation in a processor on the strip center profile.
  • the detection of the band edges by two cameras is also known from JP 63 225 107.
  • the unevenness of the surface of a rolling stock is determined in JP 80 54217 A2 by the use of multiple cameras.
  • the invention has the object to improve the detection of the tape position and to automatically correct the tape position.
  • This object is achieved in a method for tape edge detection in a cold rolling mill and / or belt system in which by means of two optical detection systems contactless tape edges are continuously resolved in that the right edge band and the left band edge over a band length of more than 800 mm by means of a Captured imaging device, the image data edited in a computer and the thus determined band edge profile is taken into account in the scheme. Further embodiments of the method will become apparent from the dependent claims.
  • the image pickup device in a first embodiment is a digital camera, i. a known and proven device is used.
  • an optical detection system In order to detect the strip during threading into the closed roll gap in cold rolling mills, an optical detection system is used.
  • the recognition system offers on the one hand the advantage of non-contact measurement and on the other hand an easy extensibility without major hardware changes.
  • Continuous image acquisition by means of two optical detection systems, each of which detects a band edge, permits continuous recording of the band profile in the monitored area (quality assurance).
  • the band edges are determined in their angular position as well as their position.
  • the information about the band position is used in a regulation for actively changing the inclination. About the change of the tilt, in turn, the band position is set.
  • the entire calculation of the band position as well as the generation of the controlled variables take place on a computer outside the actual rolling plant and / or the belt system. Due to the small dimensions of the optical detection systems used eliminates a costly conversion of the rolling mill and / or the belt system.
  • the optical detection system can also be installed in critical environmental conditions such as lubricant mist within a rolling mill / belt plant. The installation takes place in a protected position; the distance to the band can be chosen freely. Only indirect lighting is required.
  • band edge tears can be metrologically recorded and evaluated.
  • the advantage is that consequential damage can be reduced by tape breaks.
  • coarse band surface defects such as e.g. Markings on the work roll, which are reflected on the strip surface, are detected and detected accordingly.
  • optical recognition systems are suitable for all bandwidths of the rolling mill / conveyor system due to their fixed installation.
  • FIG. 1 is a plan view of an inventive detection system
  • Fig. 3 in plan view the detection system at a special
  • the detection system 1 is shown in principle.
  • the rolled strip 3 emerging or entering from the roll gap 2 is detected by two cameras 4, 5 arranged above or below it.
  • the viewing area 6, 7 of the cameras 4, 5 includes, for example, an area that does not take into account the center of the strip 8.
  • the band center can also be taken into account via installation of additional cameras.
  • the digital video signals 9, 10 obtained by the cameras 4, 5 are read into a computer 11.
  • Evaluation software determines a plurality of edge points 12 of the strip edges 13, 14. The position of the edge points 12 and their course (see FIG. 2) are evaluated in the computer 11. If differences are found in relation to a given edge profile, a change in the roll gap setting is effected, for example, by a signal for pivoting the roll.
  • the control can address the upstream and / or downstream roll stand.
  • FIG. 2 shows in simplified form the differences between a band edge detection with only one edge point 12 (left column) according to the prior art and the band edge detection according to the invention with a plurality of edge points 12 (right column). While the distance and the position of these two edge points 12 can be determined / determined with only one edge point 12, no statement can be made about the course of the rolled strip 3. Different with a band edge detection with several edge points 12. By the twelve edge points 12 on the right band edge 14 and on the left band edge 13 shown in the example, it can be determined whether the rolled strip 3 runs in the middle (a), pivoted to the left (b), forms an arc (c) or wavy (d).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

L'invention concerne un procédé pour détecter des bords de feuillards dans un laminoir à froid et/ou une installation à feuillards, procédé selon lequel deux systèmes de reconnaissance optique détectent en continu et sans contact les bords de feuillards (13, 14). Selon l'invention, le bord droit (14) et le bord gauche (13) d'un feuillard sont saisis par un dispositif de prise de vue (4, 5) sur une longueur de feuillard supérieure à 800 mm et les données images sont transmises à un ordinateur (11) qui les traite, le tracé des bords de feuillards ainsi saisi étant pris en compte lors du réglage.
PCT/EP2006/009411 2005-10-25 2006-09-28 Procede pour detecter des bords de feuillards WO2007048477A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP06792297A EP1945384A1 (fr) 2005-10-25 2006-09-28 Procede pour detecter des bords de feuillards
JP2008536957A JP2009512559A (ja) 2005-10-25 2006-09-28 ストリップエッジの検出をするための方法
CA002625494A CA2625494A1 (fr) 2005-10-25 2006-09-28 Procede pour detecter des bords de feuillards
BRPI0617752-2A BRPI0617752A2 (pt) 2005-10-25 2006-09-28 processo para detecção de arestas de tiras
US12/083,186 US20090113968A1 (en) 2005-10-25 2006-09-28 Method for Detecting Strip Edges

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005051053A DE102005051053A1 (de) 2005-10-25 2005-10-25 Verfahren zur Bandkantenerfassung
DE102005051053.1 2005-10-25

Publications (1)

Publication Number Publication Date
WO2007048477A1 true WO2007048477A1 (fr) 2007-05-03

Family

ID=37491991

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/009411 WO2007048477A1 (fr) 2005-10-25 2006-09-28 Procede pour detecter des bords de feuillards

Country Status (10)

Country Link
US (1) US20090113968A1 (fr)
EP (1) EP1945384A1 (fr)
JP (1) JP2009512559A (fr)
CN (1) CN101253008A (fr)
BR (1) BRPI0617752A2 (fr)
CA (1) CA2625494A1 (fr)
DE (1) DE102005051053A1 (fr)
RU (1) RU2008107775A (fr)
WO (1) WO2007048477A1 (fr)
ZA (1) ZA200801370B (fr)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5233372B2 (ja) * 2008-04-03 2013-07-10 新日鐵住金株式会社 鋼板の反り検出システム及び方法
DE102009014099A1 (de) * 2008-10-28 2010-04-29 Sms Siemag Aktiengesellschaft Vorrichtung und Verfahren zur seitlichen Führung eines auf einem Rollgang transportierten Walzbandes
US10189064B2 (en) * 2010-01-25 2019-01-29 Keystone Tower Systems, Inc. Control system and method for tapered structure construction
CN102319743B (zh) * 2011-05-24 2013-07-10 重庆大学 带钢跑偏与漂浮量激光扫描检测方法及纠偏系统
WO2013161780A1 (fr) * 2012-04-24 2013-10-31 新日鐵住金株式会社 Appareil de laminage et procédé de contrôle de laminage
DE102015220289A1 (de) 2015-10-19 2017-04-20 Sms Group Gmbh Verfahren und Vermessungssystem zum Vermessen eines bewegbaren Objektes
EP3202502A1 (fr) 2016-02-04 2017-08-09 Primetals Technologies Germany GmbH Reglage de position de bande
DE202016008273U1 (de) 2016-02-08 2017-06-09 Asinco GmbH Einrichtung zum Messen der Breite eines durch Bandwalzen erzeugten Metallbandes
JP6583188B2 (ja) * 2016-08-18 2019-10-02 東芝三菱電機産業システム株式会社 形状測定装置及びそれを備えた圧延システム
JP7272743B2 (ja) * 2017-09-05 2023-05-12 株式会社ミツトヨ 表面性状測定装置の制御方法
CN108050944A (zh) * 2018-01-05 2018-05-18 湖北汽车工业学院 一种基于图像处理的汽车管梁测量装置和方法
JP6849150B2 (ja) * 2018-05-22 2021-03-24 東芝三菱電機産業システム株式会社 産業プラント監視制御システム
CN108548501A (zh) * 2018-05-31 2018-09-18 广州贝晓德传动配套有限公司 材料边缘位置检测装置
CN113953332B (zh) * 2020-07-21 2024-07-12 宝山钢铁股份有限公司 一种热连轧机架间带钢单边浪形的控制方法
EP4144452B1 (fr) * 2020-08-12 2024-03-20 Primetals Technologies Japan, Ltd. Dispositif de commande pour appareil de laminoir, installation de laminoir et procédé de fonctionnement d'un appareil de laminoir
DE102020213902A1 (de) * 2020-11-05 2022-05-05 Sms Group Gmbh Stabilisierung des Walzprodukts während des Auf- und/oder Zufahrens eines Walzgerüsts
CN113269749B (zh) * 2021-05-25 2023-02-03 燕山大学 带材位置图像数据集采集方法及其视觉检测方法
CN117781897B (zh) * 2024-02-28 2024-05-07 常州市伟通机电制造有限公司 基于图像采集的带材宽度巡检系统与巡检方法

Citations (4)

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Publication number Priority date Publication date Assignee Title
JPS63225107A (ja) * 1987-03-16 1988-09-20 Mitsubishi Heavy Ind Ltd 圧延材の蛇行量検出装置
JPH06147856A (ja) * 1992-10-30 1994-05-27 Mitsubishi Heavy Ind Ltd 製鉄熱延ラインの鋼板キャンバ検出装置
GB2329264A (en) * 1997-09-11 1999-03-17 Kvaerner Tech & Res Ltd Automatic strip steering and control system for a rolling mill
EP1158267A1 (fr) * 1999-11-08 2001-11-28 Sumitomo Metal Industries, Ltd. Procede pour mesurer la qualite d'un corps en forme de bande, procede de suppression de la cambrure, instrument pour mesurer la qualite d'un corps en forme de bande, machine de laminage et dispositif de rognage

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US3313461A (en) * 1966-04-19 1967-04-11 Allegheny Ludlum Steel Steering and control device
FR2559581B1 (fr) * 1984-02-10 1986-07-11 Siderurgie Fse Inst Rech Procede et installation de detection de defauts de surface sur une bande en cours de defilement
US4759205A (en) * 1985-05-23 1988-07-26 Ishikawajima-Harima Jukogyo Kabushiki Kaisha Multi-pass rolling method and multi-path rolling-mill stand for carrying out said method
US5382802A (en) * 1992-08-20 1995-01-17 Kawasaki Steel Corporation Method of irradiating running strip with energy beams
NL1007582C2 (nl) * 1997-11-19 1999-05-20 Hoogovens Corporate Services B Werkwijze voor de vervaardiging van een metalen band en inrichting voor het verminderen van het gevaar voor bandbreuk in zo'n band.
JP2004050220A (ja) * 2002-07-18 2004-02-19 Ishikawajima Harima Heavy Ind Co Ltd 帯板製造設備

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63225107A (ja) * 1987-03-16 1988-09-20 Mitsubishi Heavy Ind Ltd 圧延材の蛇行量検出装置
JPH06147856A (ja) * 1992-10-30 1994-05-27 Mitsubishi Heavy Ind Ltd 製鉄熱延ラインの鋼板キャンバ検出装置
GB2329264A (en) * 1997-09-11 1999-03-17 Kvaerner Tech & Res Ltd Automatic strip steering and control system for a rolling mill
EP1158267A1 (fr) * 1999-11-08 2001-11-28 Sumitomo Metal Industries, Ltd. Procede pour mesurer la qualite d'un corps en forme de bande, procede de suppression de la cambrure, instrument pour mesurer la qualite d'un corps en forme de bande, machine de laminage et dispositif de rognage

Also Published As

Publication number Publication date
BRPI0617752A2 (pt) 2011-08-02
RU2008107775A (ru) 2009-09-10
JP2009512559A (ja) 2009-03-26
CN101253008A (zh) 2008-08-27
US20090113968A1 (en) 2009-05-07
ZA200801370B (en) 2009-01-28
EP1945384A1 (fr) 2008-07-23
DE102005051053A1 (de) 2007-04-26
CA2625494A1 (fr) 2007-05-03

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