INYECTOR DE AIRE PARA ENFRIADO DE SOLDADURA DE SOBRES.

摘要

This invention refers to a continuous or intermittent air injection system for enveloping machines consisting in an air tubing comprising suitable air expulsion means, controlled by an electrovalve and equipped with at least two impulsion positions when are the positions confronting the sealed area of the envelope that allows the cooling of the welding, and the upper position which is the corresponding to the stoppage of the machine with the cooling of the thermowelding rollers that permits their temperature regulation and control.