Method and a machine for manufacturing containers

A machine for realizing containers, comprising:

• a first apparatus for impressing a shape in relief on a sheet of deformable material,
• a second apparatus able to envelop the sheet on itself and reciprocally join lateral flaps thereof in order to form a tubular blank, and
• a third apparatus able to close a bottom end of the tubular blank,
• wherein the second apparatus comprises:
• a plurality of support cores, each of which is provided with enveloping means for winding the sheet about itself, and
• movement means for moving the plurality of support cores through a plurality of work stations, the plurality of work stations comprising at least a receiving station for receiving the sheet from the first apparatus, a fixing station provided with means configured to reciprocally join the lateral flaps of the sheet enveloped on each of the plurality of support cores, and a transfer station for transferring the sheet to the third apparatus,
• wherein the movement means for the plurality of support cores of the second apparatus comprises a first rotor having a lateral wall, the plurality of support cores of the second apparatus being rigidly and directly fixed projectingly to the lateral wall of the first rotor so as to stay in contact with the lateral wall for a 360° rotation of the first rotor,
• wherein the third apparatus comprises:
• a plurality of support cores,
• movement means for moving the plurality of support cores through a plurality of work stations, the plurality of work stations comprising at least a receiving station for receiving the tubular blank from the second apparatus, a sealing station comprising means for flattening a bottom end of the tubular blank bringing two portions of the tubular blank into reciprocal contact and joining the two portions to one another forming a rib, and a release station for releasing the tubular blank from each support core, and
• folding means arranged between the sealing station and the release station, which are configured to cooperate with the movement of the support cores between the plurality of work stations, for folding opposite ends of the rib below and towards an inside of the tubular blank,
• wherein the movement means for the plurality of support cores of the third apparatus comprises a second rotor having a lateral wall, the plurality of support cores of the third apparatus being rigidly and directly fixed projectingly to the lateral wall of the second rotor so as to stay in contact with the lateral wall for a 360° rotation of the second rotor.