Connecting process for closing packing container consisting of a lower part and a sheet closing element involves bringing expanding roll into contact with inside of edge and expanding by continuing relative rotation

摘要

The walls (45, 46) of the container (40) are opposite each other in the closing region. An expanding tool (24) is lowered until the expanding rolls (16, 17) lie opposite one wall (46), and the tool is then rotated. The expanding rolls are moved radially outwards, expanding the closing region of the container until its components are locked positively to each other.