Process and means for seaming and cutting off a wrapping film
AssigneeNewtec International
InventorMatti Haloila
Life of this patent
Estimating the term…
Abstract
In a process and apparatus for seaming and cutting off a wrapping film wrapped about a product, a wrapping film holder moves the wrapping film against the film already wrapped about the product. Then, hot air from within the film holder is blown against the wrapping film for seaming and cutting off the film.
Claims12
In a process for seaming and cutting off a wrapping film in a wrapping machine, comprising the steps of providing the wrapping machine with a film holder having first and second jaws and winding wrapping film about a product to be packaged with the wrapping machine, the improved process characterized by the steps of:
- locking the wrapping film between the first and second jaws subsequent to the step of winding wrapping film about the product;
- moving the first and second jaws against the surface of the wrapping film wound about the product;
- seaming the wrapping film locked between said first and second jaws to the wrapping film about the product by blowing hot air through at least one seaming aperture in the first jaw;
- and
- cutting off the wrapping film by blowing hot air through a cut-off aperture in the first jaw.
In a device for seaming and cutting off a wrapping film in a wrapping machine, said wrapping machine arranged to wind the wrapping film about a product to be packaged, and said wrapping machine having a wrapping film holder including first and second jaws, the improvement comprising:
- means for locking the wrapping film between the first and second jaws after the film has been wound about the product;
- means for moving the first and second jaws against the surface of the wrapping film wound about the product;
- means for seaming the wrapping film in the jaws to the wrapping film wound about the product by blowing hot air through at least one seaming aperture in the first jaw;
- and
- means for cutting off the wrapping film between said first and second jaws by blowing hot air through a cut-off aperture in the first jaw.
Dependencies are inferred from the claim text.