Shrink-wrapping apparatus, especially for stacked articles
AssigneeMSK-Verpackungs-System Gesellschaft mit beschrankter Haftung
InventorReiner W. Hannen
Life of this patent
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Abstract
An apparatus for packaging a stack of goods by shrinking a shrinkable foil covering on it comprises a delivery mechanism for drawing a foil tubing from a roll of tubing which cuts away a piece from the foil tubing and closes the top of that piece by an end weld seam, and a framelike vertically movable shrinking mechanism which heats all sides of the piece covering the stack of goods. To avoid a premature shrinking of the shrinkable foil covering or the foil tubing a nozzle device for making an air curtain extending substantially horizontally is provided under the delivery mechanism but above the range of travel of the shrinking mechanism and a blower for providing the air flow for the air curtain is connected with the nozzle device.
Claims6
In an apparatus for packaging a stack of goods by shrinking a shrinkable foil covering on said stack of goods and which comprises a delivery mechanism above the stack for drawing a foil tubing from a roll of said foil tubing, which cuts away a piece from said foil tubing and closes the top of said piece by an end weld seam, and a framelike vertically movable shrinking mechanism which heats all sides of said piece on said stack of goods, the improvement wherein below said delivery mechanism but above a range of travel of said shrinking mechanism, a nozzle device for generating an air curtain extending substantially horizontally across the top of the stack is provided, and a blower for providing said air curtain is connected with said nozzle device.
An apparatus for packaging a stack of goods which provides said stack of goods with a shrinkable foil covering and shrinks said shrinkable foil covering comprises:
- a gantrylike frame comprising two frame posts and a frame cross member positionable over said stack of goods;
- a framelike vertically movable shrinking mechanism mounted on said frame which can heat all sides of said stack of goods;
- a delivery mechanism for drawing a foil tubing from a roll of said foil tubing which cuts away a piece from said foil tubing and closes the top of said piece by an end weld seam;
- a nozzle device mounted on one side of said apparatus for making an air curtain extending substantially horizontally is provided under said delivery mechanism but above a range of travel of said shrinking mechanism and all across the width thereof;
- a blower connected with said nozzle device to provide said air curtain;
- and
- a hood intake with accompanying exhaust duct and exhaust fan positioned on an opposite side of said apparatus from said nozzle device.
Dependencies are inferred from the claim text.