A slotter head, a slotter apparatus, and a box making machine form a joining piece with a high degree of accuracy by each being provided with: a cutter rest; a movable block mounted in an outer peripheral portion of the cutter rest; a first cutting blade that is fixed to the movable block along a shaft direction and along a direction inclined in a circumferential direction by a predetermined angle; a first support shaft that supports, on the cutter rest, the movable block rotatably around a first shaft center along the shaft direction; and a second support shaft that supports, on the cutter rest, the movable block rotatably around a second shaft center along the circumferential direction.

A slotter head, a slotter apparatus, and a box making machine form a joining piece with a high degree of accuracy by each being provided with: a cutter rest; a movable block mounted in an outer peripheral portion of the cutter rest; a first cutting blade that is fixed to the movable block along a shaft direction and along a direction inclined in a circumferential direction by a predetermined angle; a first support shaft that supports, on the cutter rest, the movable block rotatably around a first shaft center along the shaft direction; and a second support shaft that supports, on the cutter rest, the movable block rotatably around a second shaft center along the circumferential direction.

Disclosed is a corrugated paperboard printer comprising a pressing device for applying a pressing force to press a chamber which reserves ink toward an anilox roll. The pressing device is configured to apply a first pressing force, and a second pressing force which is greater than the first pressing force, respectively, to a first pressing area and a second pressing area in a back surface of a chamber frame. In a state in which no pressing force is applied by the pressing device, bending occurring in the chamber frame due to a load transmitted from a printing roll to the chamber frame via the anilox roll as printing is performed to a corrugated paperboard sheet is greater in the second pressing area than in the first pressing area.

A sheet folding device includes forming belts which are disposed on both sides in a transfer direction of a corrugated board and move to a center side in a width direction of the corrugated board toward a downstream side in the transfer direction to press both end portions in the width direction from an outside so as to bend both the end portions; and a gauge roller group including several gauge rollers which are disposed along the transfer direction and come into contact with outer sides of both bent portions in the width direction of the corrugated board bent by the forming belts. In the several gauge rollers, recessed portions are provided on outer peripheral surfaces of the gauge rollers in a circumferential direction. Positions of the recessed portions are disposed to be offset downward in a vertical direction toward a downstream side in the transfer direction.

Provided are a slotter head, a slotter device and a box making machine comprising a cutter holder which is in a disk shape and is rotationally supported, a first cutting blade which is mounted to an outer peripheral portion of the cutter holder, a moving holder which is supported by the cutter holder movably along the circumferential direction, a second cutting blade which is mounted to an outer peripheral portion of the moving holder, a first drive device which rotationally drives the cutter holder, and a second drive device which rotationally drives the moving holder.

Provided are a slotter head, a slotter device and a box making machine comprising a cutter holder which is in a disk shape and is rotationally supported, a first cutting blade which is mounted to an outer peripheral portion of the cutter holder, a moving holder which is supported by the cutter holder movably along the circumferential direction, a second cutting blade which is mounted to an outer peripheral portion of the moving holder, a first drive device which rotationally drives the cutter holder, and a second drive device which rotationally drives the moving holder.

A rectangular blank has sides X and Y, where a and b are side dimensions, h is height, and r is width, or width reduced by height h, of the periphery region R of the finished packaging. The method includes: producing folding lines B in the blank parallel to side Y at these distances from the latter: B.sub.1: a.sub.1=h; B.sub.2: a.sub.2=h+a; B.sub.3: a.sub.3=2h+a; severing of two severing lines T, each starting from opposite sides X, along one of the folding lines B, or the extension thereof; selecting the distance between two end points E.sub.T of the severing lines T which are closer to an axis of symmetry S.sub.1 parallel to the side X, such that the distance corresponds to a side B″ of the finished packaging or length of a side M of a packaging insert.

A rectangular blank has sides X and Y, where a and b are side dimensions, h is height, and r is width, or width reduced by height h, of the periphery region R of the finished packaging. The method includes: producing folding lines B in the blank parallel to side Y at these distances from the latter: B.sub.1: a.sub.1=h; B.sub.2: a.sub.2=h+a; B.sub.3: a.sub.3=2h+a; severing of two severing lines T, each starting from opposite sides X, along one of the folding lines B, or the extension thereof; selecting the distance between two end points E.sub.T of the severing lines T which are closer to an axis of symmetry S.sub.1 parallel to the side X, such that the distance corresponds to a side B″ of the finished packaging or length of a side M of a packaging insert.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.

A corrugated plastic box and a method for manufacturing a corrugated plastic box from a blank are provided. The method includes the steps of forming rounded edge seals on the perimeter edges of the blank, pre-sealing portions of the blank—including providing air vents to allow trapped air to escape during the pre-sealing process—to form a plurality of areas in which major and minor flap slots and a glue tab are desired, ultrasonically scoring the blank to form a plurality of flap score lines, and cutting the blank through the plurality of pre-sealed flap slots and glue tab, leaving a sealed edge.