| 摘要 |
In the case of an injection unit (10) of an injection-moulding machine, comprising a screw cylinder (12), a screw (14) which is arranged rotatably and axially displaceably in the latter and is connected at its tip to an injection plunger (44), having a backflow preventer, for driving the injection-moulding compound out through a shut-off injection nozzle (38), and a drive device (18, 20, 22; 24, 26) for rotating and axially displacing the screw (14), the injection plunger (44) is releasably connected to the screw tip and guided in an injection cylinder (30), which is releasably connected at its one end to the screw cylinder (12) and bears the injection nozzle (38) at its other end. <IMAGE>
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