US 10,906,686 B2 · Sealing device

Abstract

The sealing device for packages that includes a control unit, a sealing station, an unwinder for a film web, a cutting device provided upstream of the sealing station and used for producing film sections of the film web, a film feed device for feeding the film sections to the sealing station, a conveying device for conveying packages into the sealing station. Preferrably, the packages include food packed in a gas-tight manner. Further, the sealing station may comprise upper and lower sealing elements that are configured for clamping the package and the film section in common between the lower and upper sealing elements and for sealing the film section onto the package. The sealing device may also include the sealing elements being adapted to be synchronously moved along with the continuously moving package during the sealing process.

Claims8

Dependent claims

A method for operating a sealing device comprising a control unit for applying a film section having a width that is smaller than a width of a package onto which the film section is sealed, and for sealing the film section only onto two opposed edges of the package, the method comprising the steps of:

moving one or more upper sealing elements and one or more lower sealing elements of a sealing station during a sealing process at a common synchronous speed together with the film section and the package in a production direction;
sealing the film section only onto a first edge and a second edge of the package, wherein the first edge and the second edge oppose each other and are generally parallel to the production direction;
and
cutting off the film section from a film web using a cutting device provided upstream of the sealing station.

1 more element

Dependencies are inferred from the claim text.

Sealing device

Life of this patent

Sealing device

Life of this patent

Abstract

Claims8