Rotary filling machine for filling containers with liquids

摘要

The present invention relates to a rotary filling machine for filling containers with liquids, provided with a plurality of valve assemblies (3) which are mounted on a rotating platform (2) and each of which is provided with a duct (4) intercepted by an obturator (5) for regulating the supply of liquid from a storage tank (6) to a container (7) and with an air return pipe (8). A centring cone (10) designed to receive in abutment the mouth of the container (7) and to cause opening of the obturator (5) is mounted at the bottom of each valve assembly (3). The present invention is characterized in particular by the fact that it comprises a flushing station (14) associated with the rotating platform (2), but fixed with respect thereto and provided with at least one collecting tray (15) which is actuated by moving means (16) so as to be positioned underneath the valve assemblies (3) passing above it. For this purpose first actuator means (17) for performing opening of each obturator (5) when valve assemblies (3) pass above the collecting tray (15) are provided. Each valve assembly (3) also comprises a blow-in pipe (23) provided with an outlet mouth (60) connected to the bottom end of the pipe (4) so as to be able to introduce inert gas inside the container (7) to be filled before, during and after a step involving filling of the container (7) itself. Moreover, each air return pipe (8) is provided with a third valve (31) which is actuated so as to open and close by activation means (32) integral with the centring cone (10). <IMAGE>