Device for conveying discrete entities having an improved transfer arm, and container blow-molding facility with such a device

Device for conveying discrete entities, of the type having a support (14) which is driven in continuous rotation around an axis (A0) and which carries a transfer arm (10), of the type in which the transfer arm (10) is telescopic and has an inner radial part (16) attached to the support (14) and an outer radial part (18) that can slide with respect to the inner radial part (16) along an axis of extension (A1) contained in a plane that is appreciably perpendicular to the axis of rotation (A0) of the support (14), of the type in which the extension of the arm (10) is controlled by a cam system as a function of the angular position of the arm (10) around the axis (A0) of rotation of the support (14), of the type in which the arm (10) has a gripper head (28) that is suitable for supporting at least one entity (32) and which is mounted in rotation on the outer radial part (18) of the arm (10) around an orientation axis (A3) that is appreciably parallel to the axis of rotation (A0) of the support (14), and of the type in which the orientation of the gripper head (28) is controlled by a cam system,

• characterized in that the extension of the arm (10) and the orientation of the gripper head (28) are controlled by a single rocker (34) that is articulated on the outer radial part (18) of the arm and which carries two cam followers (36, 38), each of which cooperates with an independent cam groove (40, 42).