Moulding device for moulding a container starting with a parison in plastic material and moulding machine comprising this device

Moulding device (1) of a container (2) starting with a parison (3) in plastic material, comprising:

• two half-moulds (4a, 4b) which may be joined to define at least one housing cavity (5) of the parison (3);
• supply means (7) of a blowing fluid having a pressure higher than the atmospheric pressure;
• a blowing nozzle (6) applicable on the neck (3b) of said parison (3);
• and
• a plasma generator (8) having an inlet (9) receiving the blowing fluid from said supply means (7) and an outlet (10) enabled to supply plasma at pressure higher than the atmospheric pressure to said blowing nozzle (6), so that said plasma is blown into the parison (3) placed in said housing cavity (5) to mould it at least partially and to decontaminate it;
• wherein said supply means (7) of the fluid comprises:
• at least one compression stage (16) of the fluid enabled to generate said blowing fluid, said at least one compression stage (16) being placed upstream of the plasma generator (8);
• a plasma distribution circuit which receives the plasma from the outlet (10) of the plasma generator (8), said distribution circuit including a primary line enabled to transport plasma at a maximum pressure of around 16 bar and a secondary line enabled to transport plasma at a maximum pressure of around 40 bar;
• and
• a valve unit configured to place in selective communication said primary line and said secondary line with the blowing nozzle (6).