A device for wrapping product wrappers including a winder, the winder including a gripper mechanically connected to a tubular shaft rotatable about and translatable along an approach axis, the gripper being rotatable and translatable integrally with the tubular shaft; an actuating rod active on the gripper and movable along an actuating axis, the actuating rod being movable along the actuating axis with respect to the tubular shaft and rotationally constrained to the tubular shaft, wherein the gripper is rotatable and movable following a translation of the actuating rod along the actuating axis; a first electric motor active on the actuating rod to translate the actuating rod along the actuating axis; and a second electric motor active on the tubular shaft to translate the tubular shaft along the approach axis. The device further includes a control unit configured to drive the first electric motor and the second electric motor.

Paper wrapping materials and method to securely wrap a rolled-up High Expansion Force product. The materials include a kraft paper layer encircling a circumference of the product with a leading end of the paper layer adhered to a tail end of the product by a first hotmelt adhesive. A tail end of the paper layer is adhered to a middle portion of the paper layer with a second hotmelt adhesive encircling the product. The paper layer has: (i) a Basis Weight from about 68 pounds per 3000 feet squared to about 84 pounds per 3000 feet squared, (ii) a Tensile Strength (MD) from about 55 pounds per inch to about 70 pounds per inch, (iii) a Stretch (MD) from about 7% to about 11%, and (iv) a fiber content of at least 70% virgin fibers. The second hotmelt adhesive is between about 15% and about 25% thermoplastic elastomer.

Paper wrapping materials and method to securely wrap a rolled-up High Expansion Force product. The materials include a kraft paper layer encircling a circumference of the product with a leading end of the paper layer adhered to a tail end of the product by a first hotmelt adhesive. A tail end of the paper layer is adhered to a middle portion of the paper layer with a second hotmelt adhesive encircling the product. The paper layer has: (i) a Basis Weight from about 68 pounds per 3000 feet squared to about 84 pounds per 3000 feet squared, (ii) a Tensile Strength (MD) from about 55 pounds per inch to about 70 pounds per inch, (iii) a Stretch (MD) from about 7% to about 11%, and (iv) a fiber content of at least 70% virgin fibers. The second hotmelt adhesive is between about 15% and about 25% thermoplastic elastomer.

A machine for stabilising palletised loads including an apparatus having a reel of covering tape, a gripping device to take a first end of the tape of the reel and make it integral with the load, a first movement apparatus to generate relative revolution of the apparatus around the load about a predetermined revolution axis, a second movement apparatus to generate relative translation motion of the apparatus with respect to the load in a direction parallel to the revolution direction, a cutting device placed in the apparatus to separate the tape from the reel, and a fixing device to fix a second end of the tape to the load. The apparatus also includes a tensioning fin configured to rotate around an articulation axis parallel to the reel axis and having a rectilinear end border, distal of and extending parallel to the articulation axis and configured to stay in contact with a longitudinal edge of the tape unwinding from the reel, and a spring acting on the fin to push the end border against the longitudinal edge of the tape.

A wrapping apparatus and method utilize a controlled intervention to vary a dispense rate relative to a predicted dispense rate calculated based upon a predicted demand for packaging material.

A method, apparatus and program product utilize pressurized fluid flow from a position generally upstream of a free end of a packaging material tail and at an acute angle relative to the side of a load while the free end of the packaging material tail is unsupported and/or utilize pressurized fluid flow in two or more directions and from two or more positions to assist in adhering a packaging material tail to the side of a load at the completion of a wrapping operation.

A method, apparatus and program product utilize pressurized fluid flow from a position generally upstream of a free end of a packaging material tail and at an acute angle relative to the side of a load while the free end of the packaging material tail is unsupported and/or utilize pressurized fluid flow in two or more directions and from two or more positions to assist in adhering a packaging material tail to the side of a load at the completion of a wrapping operation.

A net knife assembly for a baler is provided. The net knife assembly includes a linkage drive system including a drive linkage coupled to a motor. The net knife assembly includes a knife carrier coupled to the linkage drive system and configured to be positioned in a home position and a cut position. The net knife assembly includes a tensioning member coupled to the linkage drive system. The motor is configured to rotate the drive linkage of the linkage drive system, rotation of the drive linkage rotating the knife carrier between the home position and the cut position. Upon rotation of the knife carrier through a center position relative to the tensioning member, the tensioning member accelerates rotation of the knife carrier into the home position or the cut position.

A net knife assembly for a baler is provided. The net knife assembly includes a linkage drive system including a drive linkage coupled to a motor. The net knife assembly includes a knife carrier coupled to the linkage drive system and configured to be positioned in a home position and a cut position. The net knife assembly includes a tensioning member coupled to the linkage drive system. The motor is configured to rotate the drive linkage of the linkage drive system, rotation of the drive linkage rotating the knife carrier between the home position and the cut position. Upon rotation of the knife carrier through a center position relative to the tensioning member, the tensioning member accelerates rotation of the knife carrier into the home position or the cut position.

A method, apparatus and program product perform automatic load profiling to optimize a wrapping operation performed with a stretch wrapping machine. Automatic load profiling may be performed, for example, to determine a density parameter for a load that is indicative of load stability such that one or more control parameters may be configured for a wrapping operation based upon the density parameter. Automatic load profiling may also be performed, for example, to detect a load with a nonstandard top layer, e.g., a load with a top or slip sheet, a load with an easily deformable top layer, a load with a ragged top surface topography and/or a load with an inboard portion, such that a top layer containment operation may be activated during wrapping to optimize containment for the load.