Automatic carbon black device of a preform in the glass industry and method for carbon blacks this preform

摘要

a headband (2) is coassialmente disposed around a drum support (6) of a room air (7) provided in the degonfiamento.areas of grip (14) circonferenzialmente distributed in the drum are radially approached to the inner surface of the headband (2) to join with the same a central portion dthe structure nastriforme coating (3) provided around the inflatable chamber (7).the chamber is inflated to form, on the opposite sides with respect to the headband (2), two lobes (17.18) sealing each of the outer surface of the drum (6) and a respective bell of contrast (19, 20) circoscrivente coassialmente the drum.with a movement axial of bells of contrast (19, 20).a first and a second side flap of the structure coating (3) are applied on the respective surfaces of the hoop (2).the second flap overlaps the first flap fissandosi thereto on the surface radially outer ring (2).