Stretch wrapping of roll products
AssigneeLantech, Inc.
InventorsBill Rankin, Jim Lancaster
Life of this patent
Estimating the term…
Abstract
A roll product is wrapped with a sheet of stretch wrap packaging material dispensed from a stretch wrap dispenser. A portion of the sheet is positioned between a clamp and the stretch wrap dispenser so that the portion of the sheet is across a load path between the load and a roller for rotating the load. The load is transported along the load path and placed in driving contact with the roller. The load is rotated by driving the load with a roller. The clamp is moved from a first location to a second location where the sheet is wrapped around the load and secured in place by another portion of the sheet.
Claims31
A process for stretch wrapping a roll product load with a sheet of stretch wrap packaging material dispensed from a stretch wrap dispenser comprising:
- clamping a leading end of the sheet with a clamp, the clamp being positioned in a first location so that a portion of the sheet between the clamp and the dispenser extends across a load path between the load and at least one roller for rotating the load;
- transporting the load along the load path, contacting a portion of the sheet extending between the dispenser and the clamp, and placing the load and roller in driving contact with each other via the sheet;
- rotating the load about a generally horizontal axis by driving the load with the roller;
- and
- moving the clamp and the clamped leading end of the sheet from the first location to a second location where the sheet is wrapped around the load and the leading end of the sheet is secured in place by another portion of the sheet.
An apparatus for stretch wrapping a roll product load with a sheet of stretch wrap packaging material dispensed from a stretch wrap dispenser comprising:
- a stretch wrap dispenser for dispensing and stretching a sheet of stretch wrap packaging material;
- at least one roller for supporting and rotating the load about a generally horizontal axis when the load is placed in driving contact with the roller via the sheet to wrap the sheet around the load;
- and
- a clamp assembly including a clamp, the clamp assembly for selectively clamping a part of the sheet with the clamp while the clamp assembly is disposed in a first location in which a portion of the sheet between the dispenser and the clamp assembly extends across a load path between the load and the roller, and for moving the clamp and clamped part of the sheet from the first location to a second location where the sheet is wrapped around the load and secured in place by another portion of the sheet.
A process for stretch wrapping a roll product load with a sheet of stretch wrap packaging material dispensed from a stretch wrap dispenser comprising:
- clamping a leading end of the sheet with a clamp;
- moving the clamp to a first location so that a portion of the sheet between the clamp and the dispenser extends across a load path between the load and at least one roller for rotating the load;
- transporting the load along the load path to contact the extending portion of the sheet and place the load and roller in driving contact with each other via the sheet;
- rotating the load about a generally horizontal axis by driving the load with the roller;
- and
- wrapping the sheet around the load.
An apparatus for stretch wrapping a roll product load with a sheet of stretch wrap packaging material dispensed from a stretch wrap dispenser comprising:
- a stretch wrap dispenser for dispensing and stretching a sheet of stretch wrap packaging material;
- at least one roller for supporting and rotating the load about a generally horizontal axis when the load is placed in driving contact with the roller via the sheet to wrap the sheet around the load;
- and
- a clamp assembly including a clamp, the clamp assembly for selectively clamping a leading end of the sheet with the clamp, and then moving the clamp and the clamped leading end to a first location in which a portion of the sheet between the dispenser and the clamp assembly extends across a load path between the load and the roller.
Dependencies are inferred from the claim text.