Extrusion-blow-moulding method and dedicated robot

An extrusion blow-molding method comprising:

• extruding at least one parison in an extrusion direction,
• closing a first clamp including a first mold around the parison in a first clamping direction perpendicular to the extrusion direction, wherein at least one cavity of the first mold contains at least one sheet, and the first clamp picks up again at least one first blown object retained by at least one first blow pipe,
• transferring the first clamp in a first transfer direction inclined with respect to the extrusion direction, and perpendicular to the first clamping direction along a first level,
• inserting the first blow pipe on one end of the parison to blow it in the first mold, and form at least one second blown object, the sheet being integrated into the second blown object, and
• opening the first mold in the first clamping direction, and retaining the second object on the first blow pipe, and releasing the first blown object on a first discharge system,
• wherein, during the step of extruding the parison, when the first mold is opened, the first blown object (4a) is transferred by the first blow pipe from the first level to a second level offset with respect to the first in the extrusion direction, the sheet is placed in the cavity of the first mold by first insertion means, then the first clamp is transferred in the first transfer direction to place the first mold around the parison, and in that the first clamp picks up again the first blown object at the second level during the step of closing the first clamp to transfer it to the first discharge system.