Vorrichtung zur Heizung der Innenfläche der offenen Enden schlauchförmiger Kunststoffbehälter

摘要

Device for heating the internal surface of the open end of plastic tubular containers, consisting of a heating head (1) which has a cross-section corresponding to the shape of the tubular container and can be coaxially inserted so as to make contact, inside the open end of the tubular container (3) itself, along a section corresponding to the section (3a) to be softened internally, said heating head (3) being provided internally with electrical heating resistances (2), there also being provided means (3) for pressing the tube against the heating head (1) during heating so that the heat is transmitted to the internal surface of the container by means of direct-contact conduction.