Downstream tail adherence operation for stretch wrapping machine
AssigneeLantech.com, LLC
InventorJean-Louis Limousin
Life of this patent
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Abstract
A method and load wrapping may utilize a flow device disposed downstream of a wrap position at which the load is wrapped to direct a flow of fluid towards a packaging material tail to increase adherence of the packaging material tail to the side of a load after the load has been wrapped and conveyed away from the wrap position.
Claims40
A method of wrapping a load, the method comprising:
- while the load is disposed in a wrap position, dispensing a web of packaging material to the load with a packaging material dispenser and generating relative rotation between the packaging material dispenser and the load about an axis of rotation to wrap the web of packaging material around the load;
- while the load is disposed in the wrap position, severing the web of packaging material to form a packaging material tail extending from a corner of the load;
- moving the load away from the wrap position after severing the web of packaging material;
- and
- after moving the load away from the wrap position, directing a flow of fluid towards the packaging material tail from a position adjacent to a side of the load to increase adherence of the packaging material tail to the side of the load.
A method of wrapping a load, the method comprising:
- dispensing a web of packaging material to the load with a packaging material dispenser and generating relative rotation between the packaging material dispenser and the load about an axis of rotation to wrap the web of packaging material around the load;
- severing the web of packaging material to form a packaging material tail extending from a corner of the load;
- and
- directing a flow of fluid towards the packaging material tail from a position adjacent to a side of the load to increase adherence of the packaging material tail to the side of the load, wherein directing the flow of fluid towards the packaging material tail includes generating the flow of fluid to engage the packaging material tail throughout a target area that is substantially upstream of an end of the packaging material tail.
An apparatus for adhering a packaging material tail to a load after the load is wrapped a web of packaging material while the load is disposed in a wrap position and a packaging material tail is formed by severing the web of packaging material while the load is in the wrap position, the apparatus comprising:
- a conveyor configured to move the load away from the wrap position;
- and
- a flow device positioned downstream of the wrap position and configured to direct a flow of fluid towards the packaging material tail from a position adjacent to a side of the load after the load has been moved away from the wrap position by the conveyor to increase adherence of the packaging material tail to the side of the load.
An apparatus for wrapping a load, the apparatus comprising:
- a packaging material dispenser configured to dispense a web of packaging material to the load while the load is disposed in a wrap position;
- a rotational drive configured to generate relative rotation between the packaging material dispenser and the load about an axis of rotation while the load is disposed in the wrap position;
- a cutting assembly configured to sever the web of packaging material to form a packaging material tail extending from a corner of the load while the load is disposed in the wrap position;
- and
- a flow device positioned downstream of the wrap position and configured to direct a flow of fluid towards the packaging material tail from a position adjacent to a side of the load and at an angle relative to the side of the load after the load has been moved away from the wrap position to increase adherence of the packaging material tail to the side of the load.
Dependencies are inferred from the claim text.