Method for producing stand-up blister packages, and apparatus for executing the method
AssigneeAdolf Illig Maschinenbau GmbH & Co.
InventorEkkehard Kleinschmidt
Life of this patent
Estimating the term…
Abstract
A method for producing stand-up blister packages, and in particular a stable, easy-to-fill stand-up blister package that has no undercut of the blister dome, and can be produced with a high cycle number, without malfunctions and with a good, reproducible quality, in hot-seal machines. For this purpose, a fold line is produced through the heating of a linear region, independently of the heating during the process of sealing the blister edges with the carrier part. The apparatus has a corresponding heating station for heating and creating a fold line in the blister dome.
Claims18
A method for producing stand-up blister packages, in which blister domes with blister edges are shaped from a film sheet of thermoplastic plastic, separated from the film sheet, transferred into circulating, cyclically-moved sealing pallets, filled with an item, and sealed with a carrier part through large-surface heating of the blister edges, said method including the following method steps:
- sealing one of the blister edges with the carrier part in a transverse-sealing station;
- cooling the one blister edge and the carrier part to form a stand-up blister package preform;
- linearly heating a transition region of the blister edge between the blister dome and the carrier part in a heating station to form a narrow, heated fold line;
- folding the carrier part, and the blister edge connected thereto, by 180° along this heated fold line;
- and
- sealing remaining blister edges with the carrier part to form a sealed stand-up blister package.
An apparatus for producing stand-up blister packages including a blister dome sealed to a carrier part comprising:
- a shaping section for providing shaped blister domes having blister edges;
- and a sealing section including at least one circulating pallet belt having pallets with openings for receiving the blister domes and carrier parts on a surface of the pallets such that one blister edge overlaps a portion of the respective carrier, a filling station, a transverse-sealing station for sealing the one blister edge with the carrier part, a folding station for folding the carrier part by 180° relative to the one blister edge, a sealing station for sealing the other blister edges with the carrier part, and a heating station that is disposed between the transverse-sealing station and the folding station, with the heating station having a heated heating strip for warming a linear region of the blister dome edge in order to create a heated fold line.
Dependencies are inferred from the claim text.