DEVICE AND METHOD FOR ELIMINATING DEFECTS IN SHEET, DEVICE FOR CONTROLLING ELIMINATION OF DEFECTS IN SHEET, AND DEVICE FOR PRODUCING CARDBOARD SHEET
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United States of America Patent
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Issued Date -
May 9, 2019
app pub date -
Jun 19, 2017
filing date -
Jun 19, 2017
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Abstract
A defect detection device that detects the position of defective parts in a core paper. The device includes a slitter/scorer that cuts a continuous double-sided cardboard sheet along a transport direction. The device includes a cutoff that cuts off a plurality of continuous double-sided cardboard sheets along a width direction to a prescribed length, the continuous double-sided cardboard sheets having been cut to a prescribed width. The device includes a web director that distributes the plurality of continuous double-sided cardboard sheets to respective conveyance tables. The device includes a defective-product-eliminating device that eliminates plate-shaped double-sided cardboard sheets from a conveyance line. The device includes a control device that specifies the plate-shaped double-sided cardboard sheets having defective parts on the basis of the position of the defective parts and the width-direction cutting position on the continuous double-sided cardboard sheets, and operates the defective-product-eliminating device handling the plate-shaped double-sided cardboard sheets.
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