CORRUGATOR, ITS PAPER JOINED PART DETECTION METHOD AND DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a detection means capable of eliminating detection failure of a paper joined part and malfunction of a detector, improved in precision to detect the paper joined part and automated in a production line of a corrugated fiberboard sheet. SOLUTION: A supersonic wave transmitted through corrugated fiberboard base paper is received by a supersonic wave receiver 61b after radiating the supersonic wave toward the corrugated fiberboard base paper SC by a supersonic wave transmitter 61a on the upstream side of a cutting process of the manufactured corrugated fiberboard sheet DC, the paper joined part is detected by changing of damping quantity of a receiving wave and a cutting sheet S including the paper joined part is selectively excluded in accordance with paper joined part detection information under a paper joined part detection method of a corrugator to join paper by adhering a starting end part of the second corrugated fiberboard base paper standing by on a trailing end part of the first corrugated fiberboard base paper in the middle of delivering in the manufacturing process of the corrugated fiberboard sheet and to selectively exclude the cutting sheet S including the paper joined part on the downstream side of the manufacturing process by detecting the paper joined part. COPYRIGHT: (C)2009,JPO&INPIT