| 摘要 |
<p>Injection nozzle for use in a device for moulding an object of a thermoplastic material in an injection mould, comprizing a nozzle with a feed channel (4) running through it which connects at the bottom end to a jet passage (7) and at this end has a ball-shaped closing element (9) which can be turned by means of control means (11, 12, 13) from a position in which the inlet aperture of the jet passage extending through the member (9) coincides with the end aperture at the bottom end of the feed channel to a position in which said inlet aperture lies entirely outside the above-mentioned end aperture, so that the end aperture of the feed channel is blocked by the member.</p> |
