Method and apparatus for securing a final tail of film to a load
Inactive Publication Date: 2007-07-12
LANTECH COM
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- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
[0006] The present invention is directed to an apparatus and a method for securing a final tail of film against a wrapped load, thereby potentially providing advantages and obviating a number of problems in prior art devices and methods.
[0013] According to yet another aspect of the invention, a method of securing an initial tail of film and a final tail of film to a load while wrapping the load with a film web includes positioning a load on a load support surface, holding a leading end of a film web extending from a dispenser, and providing relative rotation between the load and the dispenser to wrap the film web around the load. The method further includes releasing the leading end of the film web, and securing the released leading end of the film web to the load. The method further includes applying a stream of air to engage the film web as it extends along a film path between a corner of the load and the dispenser, severing the film web to produce the final tail of film, and securing the final tail of film to previously dispensed layers of film with the stream of air.
Problems solved by technology
If the tail is not secured, it may snag on forklift truck wheels, or be caught under adjacent loads during storage or transport, which may strip the wrapping material from the load.
A long tail extending from the load is also unsightly.
The use of heat sealers has been problematic due to the unique environment required to seal film over varied surfaces, often without backing behind the film, and for many different types of packaging.
Several tucking devices have been developed but are not used due to their lack of robustness or high equipment costs.
Method used
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Embodiment Construction
[0001] This application claims priority under 35 U.S.C. § 119 based on U.S. Provisional Application No. 60 / 733,766, filed Nov. 7, 2005, the complete disclosure of which is incorporated herein by reference.
FIELD OF THE INVENTION
[0002] The present invention relates to a method and apparatus for wrapping a load with packaging material. More particularly, the present invention relates to a method and apparatus that secures a final film tail, created as the packaging material between the wrapped load and the dispenser is severed, to the wrapped load.
BACKGROUND OF THE INVENTION
[0003] Loads have been stretch wrapped with stretch wrap packaging material by securing a leading end of the packaging material to the load or a clamp near a side of the load, dispensing the packaging material by providing relative rotation between the load and a packaging material dispenser to cause the load to be enveloped by the packaging material, and severing the packaging material between the load and a pac...
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Abstract
A method and apparatus for securing a final tail of film to a wrapped load are provided. The method includes dispensing a film web from a dispenser and providing relative rotation between the load and the dispenser to wrap the film web around the load. A blower is actuated and applies a stream of air to the film web as the film web extends along a film path between a corner of the load and the dispenser. While applying the stream of air to the film web, the film web is weakened between the corner of the load and the dispenser and then severed, and the final tail of film is secured to the load with the stream of air.
Description
DESCRIPTION OF THE INVENTION [0001] This application claims priority under 35 U.S.C. § 119 based on U.S. Provisional Application No. 60 / 733,766, filed Nov. 7, 2005, the complete disclosure of which is incorporated herein by reference.FIELD OF THE INVENTION [0002] The present invention relates to a method and apparatus for wrapping a load with packaging material. More particularly, the present invention relates to a method and apparatus that secures a final film tail, created as the packaging material between the wrapped load and the dispenser is severed, to the wrapped load. BACKGROUND OF THE INVENTION [0003] Loads have been stretch wrapped with stretch wrap packaging material by securing a leading end of the packaging material to the load or a clamp near a side of the load, dispensing the packaging material by providing relative rotation between the load and a packaging material dispenser to cause the load to be enveloped by the packaging material, and severing the packaging materi...
Claims
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Login to View More IPC IPC(8): B65B11/04
CPCB65B11/045
InventorLANCASTER, PATRICK R. III
OwnerLANTECH COM