CARDBOARD SHEET-CUTTING DEVICE, CUTTING CONTROL UNIT THEREFOR, AND CARDBOARD SHEET-MANUFACTURING APPARATUS
First Claim
1. A cardboard sheet-cutting device comprising:
- a digital printing machine that prints a cutting mark on a cardboard sheet under transport;
a first cutting machine that cuts the cardboard sheet under transport to a predetermined width in a longitudinal direction;
a second cutting machine that cuts the cardboard sheet under transport to a predetermined length in a width direction;
a mark detector that detects the cutting mark in the cardboard sheet under transport; and
a control unit that controls operation of the first cutting machine and the second cutting machine and changes a control setting value of the mark detector on the basis of a change in printing image information.
1 Assignment
0 Petitions
Accused Products
Abstract
Regarding a cardboard sheet-cutting device, a cardboard sheet-cutting control unit and a cardboard sheet-manufacturing apparatus, continuous cutting is made during job changes, in which the cardboard sheet cutting width changes, without stopping conveyance of the cardboard sheets, by a printing unit for printing cutting marks on a double-faced cardboard sheet; a slitter scorer for cutting the double-faced cardboard sheet to a specified width; a cutoff for cutting the double-faced cardboard sheet to a specified length; a mark detector for detecting cutting marks; a movement unit for moving the mark detector along the width direction of the double-faced cardboard sheet; and a cutting control unit for performing control to actuate the cutoff on the basis of the detection results of the mark detector and moving the mark detector using the movement unit on the basis of job-change timing data and post-job change mark position information.
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Citations
15 Claims
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1. A cardboard sheet-cutting device comprising:
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a digital printing machine that prints a cutting mark on a cardboard sheet under transport; a first cutting machine that cuts the cardboard sheet under transport to a predetermined width in a longitudinal direction; a second cutting machine that cuts the cardboard sheet under transport to a predetermined length in a width direction; a mark detector that detects the cutting mark in the cardboard sheet under transport; and a control unit that controls operation of the first cutting machine and the second cutting machine and changes a control setting value of the mark detector on the basis of a change in printing image information. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 15)
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14. A cutting control unit for a cardboard sheet in a cardboard sheet-cutting device including:
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a digital printing machine that prints a cutting mark on a cardboard sheet under transport; a first cutting machine that cuts the cardboard sheet under transport to a predetermined width in a longitudinal direction; a mark detector that detects the cutting mark in the cardboard sheet under transport; and a second cutting machine that cuts the cardboard sheet under transport to a predetermined length in a width direction on the basis of a detection result of the mark detector, wherein a control setting value of the mark detector is changed on the basis of a change in printing image information.
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Specification