EDGE SHAPE DETECTION METHOD OF METAL BAND

PROBLEM TO BE SOLVED: To detect defects such as an edge wave, an edge cut or a hole on the edge part of a metal band successively with high accuracy. SOLUTION: A one-dimensional image sensor extending in the width direction is arranged on the edge part surface of the conveyed metal band, and a wavef...

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Bibliographische Detailangaben
1. Verfasser:	FUTAKI MIKIO
Format:	Patent
Sprache:	eng
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL PERFORMING OPERATIONS PHYSICS PUNCHING METAL TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To detect defects such as an edge wave, an edge cut or a hole on the edge part of a metal band successively with high accuracy. SOLUTION: A one-dimensional image sensor extending in the width direction is arranged on the edge part surface of the conveyed metal band, and a waveform sinal at every fixed time of the image sensor is accumulated in a memory of a shape determination device and compared successively with a prescribed stationary waveform, to thereby detect a shape failure of the edge part of the metal band. The one-dimensional image sensor is constituted of a light projecting part for projecting light to the metal band, and a light receiving part installed on the opposite side of the projecting part across the metal band, and a waveform sinal is formed corresponding to the one-dimensional light quantity extending in the width direction including the edge part sensed by a light receiving element of the light receiving part. COPYRIGHT: (C)2004,JPO&NCIPI