Device and method for producing plump packages filled with liquid or pasty filling material

A device for producing packages filled with a filling material, said filling material being a liquid or pasty filling material, comprising:

• a co-extrusion device for co-extruding a strand made of a curable casing material filled with said filling material, wherein
• said co-extrusion device comprises a filling tube for ejecting said filling material, as well as an extrusion nozzle being associated with said filling tube and having an extrusion gap for ejecting said casing material, said filling tube being a protruding filling tube that protrudes over said extrusion gap over a distance X such that said casing material is extruded through said extrusion gap onto said filling tube and can solidify along said filling tube,
• wherein said protruding filling tube expands at least in sections in a direction of said outlet opening,
• wherein the protruding filling tube includes:
• a front section that, when viewed in an ejection direction, has a first cross-sectional area, and
• a rear section that, when viewed in the ejection direction, has an expanding cross-sectional area, and
• wherein said rear section is formed from a different material compared to said front section.

A device for producing packages filled with a filling material, said filling material being a liquid or pasty filling material, comprising:

• a co-extrusion device for co-extruding a strand made of a curable casing material filled with said filling material, wherein
• said co-extrusion device comprises a filling tube for ejecting said filling material, as well as an extrusion nozzle being associated with said filling tube and having an extrusion gap for ejecting said casing material, said filling tube being a protruding filling tube that protrudes over said extrusion gap over a distance X such that said casing material is extruded through said extrusion gap onto said filling tube and can solidify along said filling tube,
• wherein said protruding filling tube expands at least in sections in a direction of said outlet opening,
• wherein the protruding filling tube includes:
• a front section that, when viewed in an ejection direction, has a first cross-sectional area, and
• a rear section that, when viewed in the ejection direction, has an expanding cross-sectional area, and
• wherein said front section of said protruding filling tube has a shorter length than said rear section of said protruding filling tube.