Element opening and closing machine

An element opening and closing machine having a first element (14) facing a second element (16);

• a first support (8A) with a first perforation (9A);
• a power shaft (11A);
• a first mechanism (1A) comprising:
• a shaft (2A) with a first end and a second opposite end;
• a transmission mechanism (3A) connected to the power shaft (11A) and to the first end of the shaft (2A);
• wherein, the transmission mechanism (3A) allows transforming the rotation of the power shaft (11A) into linear motion that is transmitted to the shaft (2A);
• and a rod (7A) connected to the second opposite end of the shaft (2A) and to the first element (14), wherein the rod (7A) transmits motion to the first element (14), comprising:
• a first coupling (12A) with a first end, a second end and a through hole (15A), the first coupling (12A) being arranged concentrically in the first perforation (9A) of the first support (8A);
• wherein, the power shaft (11A) is located within the through hole (15A);
• wherein the first mechanism (1A) is connected to the second end of the first coupling (12A);
• and
• wherein the first mechanism (1A) is configured to rotate around the first perforation (9A) of the first support (8A), and this in turn transmits rotation to the first coupling (12A).