WARPAGE DETERMINATION DEVICE OF CARDBOARD SHEET MANUFACTURING APPARATUS, WARPAGE CORRECTION DEVICE OF CARDBOARD SHEET MANUFACTURING APPARATUS AND CARDBOARD SHEET MANUFACTURING SYSTEM

摘要

PROBLEM TO BE SOLVED: To provide a warpage determination device of a cardboard sheet manufacturing apparatus in which the warpage of the cardboard sheet can be determined while being almost a completion state of the cardboard sheet and at an early stage, and eventually, the correction of the warpage can be performed with high accuracy and at an early stage based on this warpage determination.SOLUTION: A warpage determination device of a cardboard sheet includes: displacement amount measuring means for measuring a displacement amount of multiple pairs of cardboard sheet 24Ca, 24Cb, 24Cc in a downstream side of a slitter-scorer and in an upstream side of the sheet product upper part; and warpage state determination means for dividing a measuring range of the displacement amount measuring means according to the dimension W1 in the sheet width direction of the multiple pairs of cardboard sheet 24Ca, 24Cb, 24Cc, allocating the measuring range to each of the multiple pairs of cardboard sheet 24Ca, 24Cb, 24Cc, and determining a warpage state of the pairs of cardboard sheet 24Ca, 24Cb, 24Cc for each of the multiple pairs of cardboard sheet 24Ca, 24Cb, 24Cc based on a measurement value of the displacement amount measuring means in the allocated measuring range.SELECTED DRAWING: Figure 6