| 摘要 |
<p>The invention concerns an installation for blow moulding thermoplastic polymer containers, comprising a blowing mould consisting of two portions (2) capable of being assembled and blowing means with bell-type nozzle (11) pressed in sealed manner against a front mould surface (F) mounted on the neck (9) of a blank (7) to be blow moulded; leaking means (21, 24) with relatively large cross-section extend from one contact surface (20) of at least one mould portion (2) up to the outside of the mould beyond the support (13) of the bell (11) of the nozzle (12) on the surface (F); thus the high pressure blow moulding fluid which can penetrate through an interstice (14) between the mould portions (2) which tend to be spaced apart from each other is at least mostly evacuated outside.</p> |
