A conveyor of a cardboard-folding station receives a cardboard blank having a first portion, first and second lateral closing walls hinged thereto and facing upstream and downstream, respectively, an upper closing wall hinged to the second lateral closing wall and facing downstream, a third and a fourth lateral closing wall hinged and partly raised with respect to the first portion and projecting from sides of the conveyor. An article rests on the first portion, with four flanks or the article respectively facing the four lateral closing walls of the blank. At a first folding zone the third and fourth lateral closing walls are folded to cover the third and the fourth flanks of the article, and at a second folding zone the second lateral closing wall and the upper closing wall are folded to cover the article's second flank and its upper face.

Provided herein is a machine for forming a container from a blank including a tray and a lid. The machine has an upstream end where the blank is loaded and a downstream end where the container is discharged and includes a frame, a pre-forming assembly, and a mandrel assembly. The pre-forming assembly is configured to partially form the lid and the tray by folding each of a plurality of side panels of the blank and further form the tray by partially folding a front panel assembly of the blank, the front panel assembly including a front panel and a roll-over panel. The mandrel assembly is mounted to the frame and configured to engage a bottom panel of the tray to form each of a plurality of corners of the tray and fold the roll-over panel to form a front wall of the container.

In a box assembly device, a holding mechanism causes one of bottom boards to contact a first jig and folds the bottom board inside, while the holding mechanism holding the box material in a state where the box material is developed in a cylindrical shape from a folded state. The folding mechanism folds the bottom flap inside so as to overlap with one of the bottom boards. The holding mechanism causes the other bottom board to contact the second jig while holding the box material and folds the other bottom board inside and upwardly so as to overlap with the bottom flap to engage the bottom boards with each other.

In a box assembly device, a holding mechanism causes one of bottom boards to contact a first jig and folds the bottom board inside, while the holding mechanism holding the box material in a state where the box material is developed in a cylindrical shape from a folded state. The folding mechanism folds the bottom flap inside so as to overlap with one of the bottom boards. The holding mechanism causes the other bottom board to contact the second jig while holding the box material and folds the other bottom board inside and upwardly so as to overlap with the bottom flap to engage the bottom boards with each other.

The invention relates to a blank of corrugated cardboard sheet material consisting of a first body (10) and a second body (11) of rectangular shape which are connected together by means of a line to be cut and designed for forming a set of a first belt and a second belt intended to form a box having a length L, a width W and a height H, the first and the second bodies having different widths and lengths and the line extending along the length of the first and second bodies, the first body (10) having a width (D1) larger than the length L and a length (D2) larger than at least twice the width W plus the height H (2W+H) and the second body (11) having a width (d1) larger than the width W or the height H and a length (d2) larger than the length L plus twice the height H or twice the width W.

The invention relates to a blank of corrugated cardboard sheet material consisting of a first body (10) and a second body (11) of rectangular shape which are connected together by means of a line to be cut and designed for forming a set of a first belt and a second belt intended to form a box having a length L, a width W and a height H, the first and the second bodies having different widths and lengths and the line extending along the length of the first and second bodies, the first body (10) having a width (D1) larger than the length L and a length (D2) larger than at least twice the width W plus the height H (2W+H) and the second body (11) having a width (d1) larger than the width W or the height H and a length (d2) larger than the length L plus twice the height H or twice the width W.

A carton has an automatically erected bottom that securely closes the bottom of the carton. In one embodiment, the carton blank has two major side panels and two minor side panels serially connected. The carton blank has two bottom flaps which form the bottom of the carton. Each bottom flap is connected to one of the major side panels and one of the minor side panels. The carton blank avoids the erecting and forming issues associated with prior art carton blanks which have an automatically erected bottom.

A bale of stock packaging material includes a continuous tube of paperboard material, the continuous tube of paperboard material being flattened and folded back and forth on itself into a fan-folded bale. The continuous tube of paperboard can be a single piece of paperboard with two opposed edges that are folded to overlap with each other. The paperboard material can include a corrugated layer. The opposed edges can be adhered together to form a single seam that runs lengthwise along the continuous tube of paperboard. The adhesive can be applied between the two edges which can join to form the single seam.

A method of at least partially forming a carton includes obtaining a blank comprising at least one fold line, heating an interior surface of the blank along the at least one fold line to form a heated fold line, and folding the blank about the heated fold line.

A method of at least partially forming a carton includes obtaining a blank comprising at least one fold line, heating an interior surface of the blank along the at least one fold line to form a heated fold line, and folding the blank about the heated fold line.