GLUE APPLICATION DEVICE AND GLUE APPLICATION METHOD FOR CARDBOARD SHEETS AND CARDBOARD SHEET MANUFACTURING DEVICE

摘要

The present invention reduces the amount of glue solution transferred to the trim. The glue application device is provided with: a glue solution tank capable of storing glue solution; a glue application roll (43) capable of adhering glue solution from the glue solution tank onto the surface and transferring the glue solution onto the glue application area of the corrugating medium of a single-faced corrugated fiberboard sheet in the width direction; scraping members (45) for regulating the adhesion of glue solution outside the glue application region on the surface of the glue application roll (43); a regulating member movement mechanism for moving the scraping members (45) in the width direction of the glue application region; and a control device (48) for setting, on the basis of the cutting width dimension with which the double-faced cardboard sheet is to be cut after passing the glue application roll (43), the glue application region to be a region in which specified margins in the width direction have been added outside of the positions of the side edges of the cutting width dimension, and for controlling the regulating member movement mechanism so as to dispose the scraping members (45) at positions corresponding to the positions of the side edges of the glue application region.