The injection head vapor and cold water to the embodiment of a vacuum packaging of food products

摘要

The present invention relates to an injection head vapour and cold water for the production of a vacuum packaging of food products. The said injection head vapour and cold water is effected by a metal lid is free of hooking means and provided with an elastic joint held by a high vacuum obtained by a projection of superheated steam, followed, after application of the cover on the container, a projection of cold water. It is essentially characterized in that the head is a bell, which makes it possible to follow the injection of steam and the injection of cold water under the protection of the bell while maintaining the container and its cover is in contact under pressure of springs: - the recess of the bell in the upper part of which receives a spindle (5) provided with magnets (9) for retaining the cover, said mandrel is provided with a hole (10) in relation with a conduit of the supply of cold water (4), - the top portion being provided with at least one duct for injection of steam (3) in the chamber at the top of a bell from a first power supply circuit in the lower part of the bell in the chuck, is mounted in a chamber (6) of distribution of steam, an annular ring (7) of the injection of steam in relation with the orifices with an annular chamber for distributing steam supplied by at least one orifice for feeding vapour feeding the distribution chamber, which feeds the two circuits steam inside the head.