DEVICE FOR DETECTING PAPER SPLICE PART OF CARDBOARD SHEET, AND DEVICE FOR PRODUCING CARDBOARD SHEET
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United States of America Patent
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Issued Date -
Feb 15, 2024
app pub date -
Dec 20, 2021
filing date -
Dec 25, 2020
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Abstract
In a device for detecting a paper splice part of a cardboard sheet and a device for producing a cardboard sheet, the device for detecting a paper splice part of a cardboard sheet, which detects a sheet paper splice part of a cardboard sheet that has a first sheet, a corrugated second sheet, and a third sheet bonded together, comprises: a sheet paper splice detection unit that detects the sheet paper splice part on the basis of the shape of the sheet and that is placed between a position at which sheets are spliced and a position at which the sheets are bonded in a sheet carrying direction; a marking device that marks the sheet paper splice part on the downstream side of the sheet paper splice detection unit in the sheet carrying direction; and a mark detection device that detects the mark on the downstream side of the marking device in the sheet carrying direction.
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