A method and a machine for producing a cardboard strip for packaging from a first plurality of cardboard sheets for packaging which are cyclically united to one another

摘要

A method and a machine (20) are described for producing a cardboard strip (1) for packaging from a first plurality of cardboard sheets (2) for packaging which are cyclically united to one another. The method comprises steps of: providing a first plurality of cardboard sheets (2), in which each cardboard sheet (3) comprises a first perimeter portion (9) which extends along a first flank (7) of the cardboard sheet (3) and a second perimeter portion (10) which extends along the second flank (8) of the cardboard sheet (3); reducing the thickness of first perimeter portion (9) and the second perimeter portion (10) of a cardboard sheet (3); nearing the cardboard sheet (3) and another cardboard sheet (17) to one another, so that the second perimeter portion (10) of the cardboard sheet (3) and the first perimeter portion (9) of the other cardboard sheet (17), the thickness of which first perimeter portion (9) has been reduced in a preceding cycle, are mutually superposed, and then fixing the second perimeter portion (10) of the cardboard sheet (3) and the first perimeter portion (9) of the other cardboard sheet (17) so that they are united to one another.