A machine for forming a container from a blank of sheet material includes a forming station and a compression station. The forming station is configured to form a reinforcing corner assembly from first and second reinforcing panels extending from an end panel of the blank. The compression station is configured to rotate side panels and end panels of the blank to be substantially perpendicular to a bottom panel of the blank. The compression station includes a plurality of plows at least partially defining a plunger opening, and a plunger vertically movable through the plunger opening. The plurality of plows are configured to rotate the side panels and the end panels towards the interior surface of the bottom panel.

A blank of sheet material for forming a polygonal container is provided. The blank includes a bottom panel, two opposing side panels, two opposing end panels, and a reinforcing panel assembly extending from a first side edge of a first end panel of the two end panels. The reinforcing panel assembly includes a corner panel extending from the first side edge of the first end panel, a first reinforcing side panel extending from a side edge of the corner panel, a second reinforcing side panel extending from a side edge of the first reinforcing side panel, a reinforcing corner panel extending from a side edge of the second reinforcing side panel, and an inner end panel extending from a side edge of the reinforcing corner panel. The corner panel and the reinforcing corner panel are configured, upon articulation of the blank, to be positioned into face-to-face relationship to form a corner wall of the container extending from a side edge of an end wall of the container to an end edge of a side wall of the container.

A blank of sheet material for forming a container includes a bottom panel and two opposing bottom end panels. The blank also includes two opposing side panel assemblies. Each side panel assembly extends from a side edge of the bottom panel. Each side panel assembly includes an outer side panel extending from a side edge of the bottom panel. Two opposing side end panels each extending from an end edge of the outer side panel. A rollover panel extending from a side edge of the outer side panel, two opposing rollover miter panels each extending from an end edge of the rollover panel, and two opposing end rollover panels each extending from an end edge of one of the two opposing rollover miter panels.

A blank of sheet material for forming a container includes a bottom panel and two opposing bottom end panels. The blank also includes two opposing side panel assemblies. Each side panel assembly extends from a side edge of the bottom panel. Each side panel assembly includes an outer side panel extending from a side edge of the bottom panel. Two opposing side end panels each extending from an end edge of the outer side panel. A rollover panel extending from a side edge of the outer side panel, two opposing rollover miter panels each extending from an end edge of the rollover panel, and two opposing end rollover panels each extending from an end edge of one of the two opposing rollover miter panels.

In order to simultaneously cut several parallel grooves into material cuttings at a short distance from one another, the groove cutting machine features a horizontally arranged transport drum and at least one groove cutting tool with several knife sets for respectively cutting a groove, wherein the relative position between the knife sets of a groove cutting tool is variable in the axial direction of the transport drum.

A self-supporting flexible film container is disclosed that includes a container base and a flexible film attached to the container base that forms a container wall and defines a packing region within the container. The container wall has at least one support column, such as a tubular support column, integrally formed therein. A method of conforming the container includes providing a web of flexible film, forming tubular support columns in the web of flexible film and forming a container from the web of flexible film containing the support columns. The support columns can be formed by ploughing and forming the web of flexible film.

A packing box has a bottom panel, end panels raised from first edges of the bottom panel, side panels arranged adjacently to the end panels, edge panels connected to side edges of the end panels via outer panel fold lines, fold-back panels arranged on inner side surfaces of the edge panels, inner panels arranged on inner side surfaces of the end panels, and reinforcing panels continuously formed with the fold-back panels via first fold lines and the inner panels via second fold lines. The reinforcing panel 16 is formed in an inwardly projecting manner between the fold-back panel and the inner panel. Any of the first and second fold lines positioned on a side closer to the outer panel fold line than a projecting top portion is arranged away from the outer panel fold line by a distance.

An unwinding unit (400) for unwinding a strip (S) of heat sealing material for quadrangular machines (1) comprises a casing (401) adapted to be mounted on a quadrangular machine (1) and a puller (402) operatively associated with the casing (401) and configured to pull the strip (S) relative to the casing (401) along a feed path (P) and in a feed direction (V). A diverter (407) is configured to divert the strip (S) between an initial, preferably horizontal, stretch (P1) of the feed path and a final, substantially vertical stretch (P2) of the feed path, defining a curved, connecting stretch (P3) between the initial stretch and the final stretch. A deformer (413) operatively associated with the casing (401) are configured to make on the strip (5) an extended crease line (414) running along the strip itself starting from the curved stretch (P3) or downstream of the curved stretch (P3), in the feed direction (V) of the strip (S).

A corrugated paperboard corner shroud comprising a first side and a second side, and a flap extending from one of the sides of the shroud to form a first wall panel of a box. Each side having an outer layer, a middle layer, and an inner layer, wherein the first side and the second side are foldably coupled together along one side, and the middle layers are fastened to their respective inner and outer layers. A blank for forming a corner shroud, the blank comprising a flat, rectangular piece of corrugated paperboard and having a first, second, third and fourth edge, an inner surface having at least four adhesive sections thereon, an outer surface, and a first series of scorelines extending along the blank from the first edge to the second edge. A method of making the corner shroud. A box having the corner shroud.