US 8,409,064 B2Granted

Method and device for making boxes from a set of blanks

AssigneeOtor, Societe Anonyme

InventorsDidier Desertot, Thierry Colas, Eric Schuster, Gerard Mathieu

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Abstract

This is a method and device for making a packaging box from two blanks (2, 3), wherein blanks are taken simultaneously from two adjacent stacks (25, 26) and placed on two parallel tracks (29, 30), the blanks are transferred flat until butted longitudinally to an assembly station, the first blank is glued on its way to the longitudinal abutment position, the first and second blanks are butted laterally into their respective positions to give them an exact lateral reference position, they are grasped, and transferred laterally, and the second blank is placed on the first blank which is thus indexed, escaping the drivers (61) of the first track (29) when the second blank is placed against the fast blank, but clamped by vertical pressure. The second blank is then applied to the first blank to glue them together in their respective defined longitudinal positions, and the resulting set of blanks is then transferred to an erecting station where the box is erected by rolling the blanks around a core.

Claims18

Dependent claims

A method for producing a packaging box with a polygonal section from at least two blanks of sheet cardboard or corrugated cardboard material, namely a first blank (2) forming the bottom of said box, and a second blank (3) comprising at least four panels (4, 5, 6, 7) respectively connected together by third parallel fold lines (9), comprising a lower free edge lacking a flap on the side of the bottom, said second blank forming a cover for said box, characterized in that

blanks are taken simultaneously from two adjacent magazines (25, 26) and said blanks (2, 3) are placed on two parallel tracks (29, 30), namely a first track (29) for the first blank and a second track (30) for the second blank,
said blanks are transferred flat to said tracks by being guided substantially with a lateral clearance between two rails (40, 41;
42, 43) by a stopper-drive system, until they butt longitudinally at an assembly station, in a determined longitudinal position for each of the blanks,
said first blank (2) is glued during its transfer to the longitudinal abutment position (34, 35),
the first and second blanks are wedged in lateral abutment respectively in order to be given an exact lateral reference position,
the second blank (3) is picked up, transferred laterally and placed on the first blank (2) thus indexed, by escaping the stoppers (61) of the first track when the second blank is placed beside the first, while being held by vertical-pressure immobilization,
the second blank is then pressed onto the first blank in order to glue them together in their determined respective longitudinal positions,
and then the assembly of blanks thus formed is transferred to a forming station (90) where the box is formed by rolling the blanks around a core.

5 more elements

A device (24) for producing a polygonal-section packaging box from at least two blanks (2, 3) made of sheet cardboard or corrugated cardboard material, namely a first blank (2) forming the bottom of said box, and a second blank (3) comprising at least four panels (4, 5, 6, 7) connected together by third parallel fold lines (9), comprising a lower free edge (11) lacking a flap on the side of the bottom, said second blank forming a cover for said box, characterized in that it comprises

two adjacent storage magazines (25, 26) respectively of the first and second blanks,
means for transferring said blanks to an assembly station comprising:
means (27, 28) for picking up the blanks from said magazines,
two parallel tracks (29, 30) for transferring flat said blanks to an assembly station (31), namely a first track (29) for the first blank (2) and a second track (30) for the second blank (3), each track comprising a stopper-drive system (32, 33) for the blanks,
means for guiding each of said blanks, each comprising two rails (40, 41;
42, 43) for guiding the blanks (2, 3) substantially with a lateral clearance up to the assembly station, and
means (34, 35) for longitudinal abutment at said assembly station, in a determined longitudinal position for each of the blanks,
means (36) for coating the first blank with adhesive during its transfer to its longitudinal position,
means (44) for wedging in lateral abutment the first and second blanks in order to give them a respective exact lateral reference position against one of the rails,
means (50) for pick-up and lateral transfer by suction cups (51) of the second blank (3) in order to place it on the first blank (2) thus indexed, in their determined respective longitudinal positions,
means (60) for escaping from the stoppers of the first track relative to the first blank, when the second blank is placed beside the first, and means for vertical-pressure immobilization of said first blank during the escape,
means for pressing (70) the second blank onto the first blank,
and means (80) for transferring the set of blanks thus formed to a forming station (90).

10 more elements

Dependencies are inferred from the claim text.