DEVICE AND METHOD FOR DETECTING DEFECT IN CORRUGATED CARDBOARD SHEET, DEVICE FOR ELIMINATING DEFECT IN CORRUGATED CARDBOARD SHEET, AND DEVICE FOR MANUFACTURING CORRUGATED CARDBOARD SHEET

In a device and a method for detecting a defect in a corrugated cardboard sheet, a device for eliminating a defect in a corrugated cardboard sheet, and a device for manufacturing a corrugated cardboard sheet, the device for detecting a defect in a corrugated cardboard sheet which detects a defect in...

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Bibliographische Detailangaben
Hauptverfasser:	FUKUSHIGE, Naoyuki, TAKEMOTO, Shuichi
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNERANALOGOUS TO PAPER MEASURING MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD ORMATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER PERFORMING OPERATIONS PHYSICS TESTING TRANSPORTING WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUSTO PAPER
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Beschreibung
Zusammenfassung:	In a device and a method for detecting a defect in a corrugated cardboard sheet, a device for eliminating a defect in a corrugated cardboard sheet, and a device for manufacturing a corrugated cardboard sheet, the device for detecting a defect in a corrugated cardboard sheet which detects a defect in a wavy core affixed to a liner is provided with: a lighting device that lights the core; an imaging device that captures an image of a lit part in the core; an image processing device that defines a change degree of a light amount value along a conveyance direction of the corrugated cardboard sheet on the basis of the image captured by the imaging device; and a first determination device that compares the change degree of the light amount value with a previously-set first determination value to determine quality.