ACTUATING ASSEMBLY FOR MOVING AN OPERATIVE MEMBER OF A GLASSWARE FORMING MACHINE

摘要

In a glassware forming machine (1), an actuating assembly (6) of an operative member (5) has a tubular connecting body (9); a shaft (10) for supporting the operative member (5) coupled to the connecting frame (10) to translate and rotate about a fixed axis (12) thereof; a pneumatic jack (30) for displacing the supporting shaft (10) along the axis (12); a cam and tappet device (25) for rotating the supporting shaft (10) in opposite directions about the axis (12) and having a chamber (24) and a cam and tappet assembly (25) housed in the chamber (24) and lubricated by a lubricating liquid contained in the chamber; and a hydraulic device (35) for stabilizing the motion of the shaft (10); the chamber (24) and the hydraulic stabilizing device (35) constituting part of a single closed hydraulic circuit (48) for feeding a common lubricating and operative liquid to the cam and tappet device (25) and to the hydraulic stabilizing device (35).