| 摘要 |
The present invention relates to a moulding unit (10) for manufacturing preforms (100) made of plastics material, said moulding unit (10) comprising at least one "HR"-type mould (10), a nozzle (14) comprising at least a nozzle body (28) and a nozzle orifice (30) incorporating a preform (100) stabilizer (34) that forms with a tubular member (40) a mobile assembly that is able to slide axially relative to said nozzle orifice (30) between at least a top position and a bottom position, characterized in that the tubular member (40) is guided so as to slide axially with respect to the nozzle body (28) by at least one guiding means (46) which is interposed radially between said nozzle body (28) and said tubular inlet member (40), and in that the stabilizer (34), fixed to said tubular member (40), is guided with respect to the nozzle body (28) only by way of said at least one guiding means (46). |
