Method and an apparatus for forming and thermosealing packaging containers

摘要

The disclosure relates to a method and an apparatus for forming and thermosealing one end of a packaging container which is manufactured from thermosealing material. The packaging container is placed in a conveyor which brings it into contact with mechanical forming devices (22) which progressively reform the packaging container end so that a sealing fin (6) oriented in the direction of movement of the packaging container is formed. In a subsequent sealing station (12), thermoplastic material located in the sealing fin (6) is heated to sealing temperature, whereafter wall portions included in the sealing fin are mechanically urged against one another during simultaneous cooling and continued advancement.