Machine for plasma treatment of containers, comprises chamber for receiving container to be treated, sheath defining tube inside extension of the chamber, depressurization conduit, first and second valves, and pressurization conduit

摘要

The machine (1) for plasma treatment of containers, comprises a chamber (5) for receiving a container to be treated, a sheath (8) defining a tube (9) inside an extension of the chamber, a depressurization conduit (14) emerges in the tube and connects to a depression source, a first valve having a closed position in which it seals the depressurization conduit and an opening position, which communicates the tube and the depression source, a pressurization conduit, which is distinct from the depressurization conduit and connects the tube with a pressure source, and a second valve. The machine (1) for plasma treatment of containers, comprises a chamber (5) for receiving a container to be treated, a sheath (8) defining a tube (9) inside an extension of the chamber, a depressurization conduit (14) emerges in the tube and connects to a depression source, a first valve having a closed position in which it seals the depressurization conduit and an opening position, which communicates the tube and the depression source, a pressurization conduit, which is distinct from the depressurization conduit and connects the tube with a pressure source, and a second valve having a closed position, which communicates the tube and the pressure source. The tube has a central portion extending through an end portion, which includes an annular chamber. The annular chamber communicates with the central portion of the tube by drilling. The depressurization conduit emerges in an intermediate chamber, which communicates with the tube through the intermediary of an openwork partition. The depressurization conduit and the pressurization conduit emerges in a common channel.