| 摘要 |
<p>Sealing element (4) for ends (8) of ducts (12) in mould cooling circuits (16), comprising a sealing screw (24) having a head (28) and a stem (32) facing, in an axial direction (X-X) towards the exit of the end(8), a washer (36) joined coaxially to said stem (32), so as to constrain, between the washer (36) and the head (28), a sealing ring (40) coaxial with the stem (32), a ring-nut (48) joined coaxially to the stem (32), on the side opposite the head (28), so as to constrain, between the ring-nut (48) and the washer (36), a blocking ring (52) of the sealing element (4). The ring-nut (48) rotates in relation to the sealing screw (24) so as to screw itself at least partially onto the stem (32) around the axial direction (X-X), axially compressing the sealing ring (40) and the blocking ring (52) so that these can expand in a radial direction (Y-Y). In the expanded radial configuration the sealing ring (40) ensures the hermetic seal and the blocking ring (52) prevents the sealing element (4) from coming off the end (8) of the mould (16),</p> |
