| 摘要 |
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 running through it which connects at the bottom end to a jet passage and at this end has a ball-shaped closing element which can be turned by means of control means from a position in which the inlet aperture of the jet passage extending through the member 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 abovementioned end aperture, so that the end aperture of the feed channel is blocked by the member.
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