Method and device for packaging
A method for packaging a good by means of a package formed of a shrinkable lower film 7 and an upper film 10 is provided. The lower film may be deep-drawn to form a container for accommodating the good, and after filling in the good, an upper film may be supplied for covering. The such-formed package is sealed and then may be subjected to shrinking in an evacuating and sealing station. Consecutively to the evacuating and sealing, an additional shrinking may be performed by subjecting the package to heat from all sides, so as to remove the film section having developed between the part of the lower and the upper film directly resting against the good and the sealing rim 16 . A corresponding device for executing the method is indicated.
1. A method for packaging a good by means of a package formed of a shrinkable lower film and a shrinkable upper film, the method comprising the steps of:
deep-drawing the lower film to form a container for accommodating the good;
placing the good into the container,
supplying the upper film above the filled container and covering the filled container and covering the filled container with the upper film,
evacuating and sealing the covered container along a rim, releasing said rim, and
subjecting the formed package to heat from all sides for all-side shrinking.
2. The method for packaging a good according to claim 1 , wherein the upper film is supplied in a pre-stressed condition.
3. The method for packaging a good according to claim 1 , wherein the upper film is heated before it is supplied above the filled container.
4. The method for packaging a good according to claim 1 , wherein the upper film is deep-drawn before being supplied above the filled container.
5. The method for packaging a good according to claim 1 , wherein after evacuating and before sealing an inert gas is supplied for filling cavities present in the good.
6. A method for packaging a good by means of a package formed of a shrinkable lower film and a shrinkable upper film, the method comprising the steps of:
providing a device for packaging a good, having an input side and an output side, an apparatus for laterally gripping and guiding the lower film to be supplied from the input side to the output side, a forming station arranged on the input side for forming containers, an evacuating and sealing station, an apparatus for supplying the upper film to the input side of the evacuating and sealing station, a separating station at the output side and a heating station for subjecting the package to heat from all sides for shrinking; and
placing the good into the container;
supplying the upper film above the filled container and covering the filled container with the upper film;
evacuating and sealing the covered container along a rim, releasing said rim; and
subjecting the formed package to heat from all sides for all-side shrinking.
7. The method of claim 6 , further comprising providing a lateral guide apparatus for laterally guiding the upper film.
8. The method of claim 6 , further comprising providing a heating apparatus for heating the upper film.
9. The method of claim 6 , further comprising a forming station for forming the upper film, the forming station being positioned upstream of the evacuating and sealing station.
10. The package made by the method of claim 6 .