A box transport rail 70 extending in the box transport direction Tb and a plurality of box transport shuttles 76 movably arranged on the box transport rail 70 to be movable in the box transport direction Tb, which is the movement direction of a packing box Bx, are provided. When located in the sheet feeder 81, the box transport shuttles 76 receive the sheet 9 while being apart from each other across an interval greater than the bottom sheet portion 91 of the sheet 9. During movement from the pushing unit 82 to the sealer 84, the box transport shuttle 76 arranged frontward in the box transport direction Tb is brought close to the bottom sheet portion 91 to reduce the angle of a part 93 frontward of the bottom sheet portion 91 in the box transport direction Tb relative to the bottom sheet portion 91.

The invention relates to a method for folding a corrugated cardboard blank (1) intended to form a folded box, the method comprising the following series of steps:

i) supplying a blank (1) comprising at least one longitudinal crease (11);
ii) applying a liquid to the longitudinal crease (11) so as to make the corrugated cardboard more flexible at the location of the longitudinal crease (11), the application being performed by means of a liquid application arrangement (130) comprising a liquid-ejection nozzle (134) provided with a liquid outlet;
iii) folding the blank (1) around the longitudinal crease (11);
wherein an aspiration of liquid is produced inside an aspiration compartment (163) of the liquid application arrangement (130) during step ii). The aspiration making it possible to remove any excess liquid which might not have been absorbed by the cardboard and/or the cardboard dust produced.

The invention relates to a method for folding a corrugated cardboard blank (1) intended to form a folded box, the method comprising the following series of steps: i) supplying a blank (1) comprising at least one longitudinal crease (11); ii) applying a liquid to the longitudinal crease (11) so as to make the corrugated cardboard more flexible at the location of the longitudinal crease (11), the application being performed by means of a liquid application arrangement (130) comprising a liquid-ejection nozzle (134) provided with a liquid outlet; iii) folding the blank (1) around the longitudinal crease (11); wherein an aspiration of liquid is produced inside an aspiration compartment (163) of the liquid application arrangement (130) during step ii). The aspiration making it possible to remove any excess liquid which might not have been absorbed by the cardboard and/or the cardboard dust produced.

A box transport rail 70 extending in the box transport direction Tb and a plurality of box transport shuttles 76 movably arranged on the box transport rail 70 to be movable in the box transport direction Tb, which is the movement direction of a packing box Bx, are provided. When located in the sheet feeder 81, the box transport shuttles 76 receive the sheet 9 while being apart from each other across an interval greater than the bottom sheet portion 91 of the sheet 9. During movement from the pushing unit 82 to the sealer 84, the box transport shuttle 76 arranged frontward in the box transport direction Tb is brought close to the bottom sheet portion 91 to reduce the angle of a part 93 frontward of the bottom sheet portion 91 in the box transport direction Tb relative to the bottom sheet portion 91.

Provided is a gluer apparatus capable of reducing slowdown or delay of a to-be-bonded part due to a contact-type glue gun, and a conveyance assist device for the gluer apparatus. A folder-gluer is configured to apply a glue to a gluing tab of a corrugated paperboard sheet by a glue application device. The corrugated paperboard sheet comprises a folding panel provided with the gluing tab, and a non-folding panel connected to the folding panel through a connection part. A lower conveyance belt of the folder-gluer is configured to convey the non-folding panel in a conveyance direction while contacting the non-folding panel. Further, a conveyance assist device of the folder-gluer is configured to convey the folding panel in the conveyance direction while contacting the folding panel, during contact between a glue application device and the gluing tab.