Abstract: A method for the production of a packing case from a one-piece blank, comprising a band of at least four main panels connected together by parallel fold lines, and furnished with two series of flaps situated on either side, for respectively forming at least partly the bottom and the top of the case. The band comprises a precut transverse line over the main panels to divide the blank into a first and a second half-blank. The half-blanks are separated, the first is placed in a transfer channel, the second is held in a plane higher than that of the transfer channel, the first is transferred to a mandrel while applying adhesive, and the first is wrapped around the mandrel. The transfer channel allows the second to be lowered to the channel, transferred to the mandrel, and wrapped around the first half-blank before folding the flaps.

Abstract: The present invention relates to a one-piece blank (14) made of corrugated cardboard for the production of a display case (1), the case, the method and the machine for producing said case. The blank comprises a band (2) of panels (15, 16, 17, 18) connected together in pairs by parallel fold lines (24, 25, 26, 27). The band (2) comprises a precut transverse line (20) making it possible to divide the blank into two half-blanks (21, 22), said transverse line determining on either side and for each parallel fold line (24, 25, 26, 27) two separate portions of fold line (24?, 24?; 25?, 25?; 26?, 26?; 27?, 27?) offset relative to one another in order to make it possible to at least partly compensate for the thicknesses of cardboard when the second half-blank is wrapped over the first half-blank around a mandrel.

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.

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.

Abstract: The present invention relates to a one-piece blank (14) made of corrugated cardboard for the production of a display case (1), the case, the method and the machine for producing said case. The blank comprises a band (2) of panels (15, 16, 17, 18) connected together in pairs by parallel fold lines (24, 25, 26, 27). The band (2) comprises a precut transverse line (20) making it possible to divide the blank into two half-blanks (21, 22), said transverse line determining on either side and for each parallel fold line (24, 25, 26, 27) two separate portions of fold line (24?, 24?; 25?, 25?; 26?, 26?; 27?, 27?) offset relative to one another in order to make it possible to at least partly compensate for the thicknesses of cardboard when the second half-blank is wrapped over the first half-blank around a mandrel.