GB1290096A - - Google Patents

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Publication number
GB1290096A
GB1290096A GB1290096DA GB1290096A GB 1290096 A GB1290096 A GB 1290096A GB 1290096D A GB1290096D A GB 1290096DA GB 1290096 A GB1290096 A GB 1290096A
Authority
GB
United Kingdom
Prior art keywords
image
strip
rolls
control
camber
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.)
Expired
Application number
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 filed Critical
Publication of GB1290096A publication Critical patent/GB1290096A/en
Expired legal-status Critical Current

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
    • G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
    • G01B11/25—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures by projecting a pattern, e.g. one or more lines, moiré fringes on 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
    • B21B37/28—Control of flatness or profile during rolling of strip, sheets or plates
    • B21B37/38—Control of flatness or profile during rolling of strip, sheets or plates using roll bending
    • 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
    • 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
    • G01B11/022—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness by means of tv-camera scanning

Abstract

1290096 Rolling metals ISHIKAWAJIMAHARIMA JUKOGYO KK 23 March 1970 14035/70 Heading B3M [Also in Division G3] The shape of a strip 10 being rolled is controlled by varying the camber of a pair of rolls 17, 18 through which the strip passes in response to the form of an image reflected from the strip surface and received by a TV camera 14. The image is produced by a transverse light source 12 or a painted bar, and is distorted by any non- flatness in the rolled strip. The image, as seen on a monitor 15, is divided into sections 1, 2 and 3 which are processed in respective shaping, sampling and comparison circuits la, 1b, 1c &c. Any deviations of the images from a reference signal are fed as output signals to control valves 1e, 2e and 3e. The valves control the camber of the rolls 17 and 18 by means of hydraulic jacks A 1 , A 2 , B 1 and B 2 . In a further embodiment, the image from the TV camera is focused on a CRT, and portions of the image are detected by elements such as phototransistors. The resulting signals are compared with references and any output signals are used to control the mill rolls as before. Pressure-electric transducers, amplifiers, and comparators are provided in feed back loops.
GB1290096D 1970-03-23 1970-03-23 Expired GB1290096A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1403570 1970-03-23

Publications (1)

Publication Number Publication Date
GB1290096A true GB1290096A (en) 1972-09-20

Family

ID=10033825

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1290096D Expired GB1290096A (en) 1970-03-23 1970-03-23

Country Status (1)

Country Link
GB (1) GB1290096A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736234A1 (en) * 1976-08-13 1978-02-16 Ishikawajima Harima Heavy Ind METHOD AND DEVICE FOR CONTROLLING THE SHAPE OF ROLLED MATERIAL
DE2736235A1 (en) * 1976-08-13 1978-02-16 Ishikawajima Harima Heavy Ind OPTICAL FORM SENSOR FOR ROLLED MATERIAL
EP0007227A1 (en) * 1978-07-11 1980-01-23 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for measuring the profile of an elongate surface
FR2598507A1 (en) * 1983-11-04 1987-11-13 Libbey Owens Ford Co INSPECTION APPARATUS AND METHOD FOR DETECTING DISTORTION OF THE SURFACE OF A REFLECTIVE MATERIAL SHEET
WO1994016290A1 (en) * 1993-01-15 1994-07-21 Thermo Electron Web Systems Inc. Web curl measurement system
EP1327852A1 (en) * 2002-01-11 2003-07-16 CENTRO SVILUPPO MATERIALI S.p.A. Apparatus for the measuring of the surface flatness, in particular for metallic strips

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2736234A1 (en) * 1976-08-13 1978-02-16 Ishikawajima Harima Heavy Ind METHOD AND DEVICE FOR CONTROLLING THE SHAPE OF ROLLED MATERIAL
DE2736235A1 (en) * 1976-08-13 1978-02-16 Ishikawajima Harima Heavy Ind OPTICAL FORM SENSOR FOR ROLLED MATERIAL
EP0007227A1 (en) * 1978-07-11 1980-01-23 Commonwealth Scientific And Industrial Research Organisation Method and apparatus for measuring the profile of an elongate surface
FR2598507A1 (en) * 1983-11-04 1987-11-13 Libbey Owens Ford Co INSPECTION APPARATUS AND METHOD FOR DETECTING DISTORTION OF THE SURFACE OF A REFLECTIVE MATERIAL SHEET
WO1994016290A1 (en) * 1993-01-15 1994-07-21 Thermo Electron Web Systems Inc. Web curl measurement system
EP1327852A1 (en) * 2002-01-11 2003-07-16 CENTRO SVILUPPO MATERIALI S.p.A. Apparatus for the measuring of the surface flatness, in particular for metallic strips

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Legal Events

Date Code Title Description
PS Patent sealed