Stretch-hood machine for partially sealed stretch-hood
AssigneeSignode Industrial Group LLC
InventorTonny Konstmann
Life of this patent
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Abstract
Various embodiments of the present disclosure provide a stretch-hood machine and method of operating a stretch-hood machine to wrap an item with tubular film. The method includes drawing tubular film from a roll of film and forming a first seal section at a first end of a section of the tubular film, where the first seal section extends across only a portion of a width of the tubular film so as to provide a partial seal with a first opening at the first end of the section of tubular film. Using reefing devices, the tubular film is lowered around the item to wrap the item within an interior of the tubular film. The first opening at the first end of the section of tubular film provides access between the interior of the tubular film and the exterior environment.
Claims20
A method of operating a stretch-hood machine to wrap an item with a tubular film, the method comprising:
- drawing the tubular film from a roll of film;
- forming a first seal section at a first end of a section of the tubular film, wherein the first seal section extends across only a portion of a width of the tubular film so as to provide a partial seal with a first opening at the first end of the section of the tubular film;
- positioning the tubular film on a plurality of reefing devices;
- reefing the tubular film onto reefing fingers of the reefing devices;
- and
- lowering the reefing devices around the item to wrap the item within an interior of the tubular film, wherein the first opening at the first end of the section of the tubular film provides access between the interior of the tubular film and an exterior environment.
A stretch-hood machine comprising:
- a machine frame;
- a wrapping carriage movable relative to the machine frame between upper and lower positions;
- a plurality of reefing devices supported by the wrapping carriage and configured to wrap tubular film around an item;
- a film-supply assembly configured to direct the tubular film to the reefing devices from a roll of tubular film having a first width;
- and
- a sealing system comprising a first sealing unit strip having a length that is smaller than the first width of the roll of tubular film and configured to form a first seal section at a first end of a section of the tubular film that extends across only a portion of a width of the tubular film so as to provide a partial seal with a first opening at the first end of the section of the tubular film.
A stretch-hood machine comprising:
- a machine frame;
- a wrapping carriage movable relative to the machine frame between upper and lower positions;
- a plurality of reefing devices supported by the wrapping carriage and configured to wrap tubular film around an item;
- a film-supply assembly configured to direct the tubular film to the reefing devices from a roll of tubular film having a first width;
- and
- a sealing system comprising first and second sealing unit strips that extend along a first line, are spaced apart along the first line by a gap, and are configured to provide a partial seal on the tubular film with an opening corresponding to the gap between the first and second sealing unit strips.
Dependencies are inferred from the claim text.