A corrugated paperboard box making machine comprises: a slotter device comprising a rotatable cylindrical-shaped upper slotter, and a slotter blade detachably attached onto an outer periphery of the upper slotter, wherein the slotter device performs slotting on a corrugated paperboard sheet; and an upper-level management device and/or a lower-level management device configured to control the slotter device. The management device is configured to set a limit value of the length of the slotter blade for satisfying a given condition determined from the perimeter of the upper slotter, dimensions of a corrugated paperboard box to be produced by the corrugated paperboard box making machine, and a production mode to be set to operate the slotter device in conformity to the box to be produced, and determine whether or not the length of a given slotter blade to be attached to the slotter device exceeds the limit value.

A corrugated paperboard box making machine comprises: a slotter device comprising a rotatable cylindrical-shaped upper slotter, and a slotter blade detachably attached onto an outer periphery of the upper slotter, wherein the slotter device performs slotting on a corrugated paperboard sheet; and an upper-level management device and/or a lower-level management device configured to control the slotter device. The management device is configured to set a limit value of the length of the slotter blade for satisfying a given condition determined from the perimeter of the upper slotter, dimensions of a corrugated paperboard box to be produced by the corrugated paperboard box making machine, and a production mode to be set to operate the slotter device in conformity to the box to be produced, and determine whether or not the length of a given slotter blade to be attached to the slotter device exceeds the limit value.

A device for processing a plate element (35) has a rotable hub (52), two tools (57, 58), mounted on the hub (52) to process the element (35) when each tool is in a respective processing position; a drive to rotate the hub (52) and the two tools (57, 58); a rotatable counter-tool (64). The rotation (R) of the hub (52) varies during a rotation cycle of the hub (52), and includes two constant speed phases during each of which one of the two tools (57, 58) is, in succession, in the processing position; and at least one phase with each of the two tools (57, 58) in an intermediate position between the respective processing positions, so as to achieve a front lateral processing position and a rear lateral processing position on the element (35).

A device for processing a plate element (35) has a rotable hub (52), two tools (57, 58), mounted on the hub (52) to process the element (35) when each tool is in a respective processing position; a drive to rotate the hub (52) and the two tools (57, 58); a rotatable counter-tool (64). The rotation (R) of the hub (52) varies during a rotation cycle of the hub (52), and includes two constant speed phases during each of which one of the two tools (57, 58) is, in succession, in the processing position; and at least one phase with each of the two tools (57, 58) in an intermediate position between the respective processing positions, so as to achieve a front lateral processing position and a rear lateral processing position on the element (35).

The invention relates to a one piece blank of a corrugated cardboard sheet material designed for forming a belt intended to form a box having a length L, a width W and a height H, wherein this blank includes a main rectangular body (10) extending along a longitudinal direction and two protruding rectangular parts (11, 12) extending in a transverse direction and symmetrically with regard to the main body, so as to define two perpendicular branches, a first branch being defined by the main body and a second branch defined by the protruding parts, the main 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+2H) and each of the protruding parts having a length (d1) larger than the height H or the width W and a width (d2) larger than the width W or the height H.

A firearm target is formed from a cardboard substrate. A first target is printed on the cardboard substrate. The cardboard substrate is folded into a box shape. The cardboard substrate is cut to form a first flap and a second flap on a first side of the cardboard substrate. The first flap and second flap include notches. The first flap and second flap are folded over with the notches interlocked. The flaps can be oriented to the bottom of the box shape and weighted for stability. A second target can be mounted to the box shape over the first target.

A firearm target is formed from a cardboard substrate. A first target is printed on the cardboard substrate. The cardboard substrate is folded into a box shape. The cardboard substrate is cut to form a first flap and a second flap on a first side of the cardboard substrate. The first flap and second flap include notches. The first flap and second flap are folded over with the notches interlocked. The flaps can be oriented to the bottom of the box shape and weighted for stability. A second target can be mounted to the box shape over the first target.

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.

The invention is directed to a balanced process for extrusion of a plastic corrugated sheet or blanks, and subsequent converting of the blanks into plastic boxes. The process includes conveying the blanks to a plurality of forming stations for incrementally forming features on the blank needed for forming a box. The present process is performed at a slower speed than typical paper corrugated forming.

A firearm target is formed from a cardboard substrate. A first target is printed on the cardboard substrate. The cardboard substrate is folded into a box shape. The cardboard substrate is cut to form a first flap and a second flap on a first side of the cardboard substrate. The first flap and second flap include notches. The first flap and second flap are folded over with the notches interlocked. The flaps can be oriented to the bottom of the box shape and weighted for stability. A second target can be mounted to the box shape over the first target.