| 摘要 |
The invention relates to a receiving element for receiving an interchangeable yarn drawing nozzle that can be magnetically locked. According to the invention, the receiving element is configured as an adapter ( 26 ), which can be screwed into a central threaded bore ( 37 ) of a thread channel plate ( 12 ) in an open-ended rotor spinning device ( 1 ), the latter being designed to receive a conventional yarn drawing nozzle that is equipped with an external thread. The adapter ( 26 ) comprises centring bores ( 27 ) for receiving ferromagnetic centring lugs ( 28 ) of a yarn drawing nozzle ( 13 ) in addition to a continuous bore ( 33 ), whose internal diameter (d) is adapter to the external diameter (D) of the shaft ( 39 ) of the yarn drawing nozzle ( 13 ). The adapter is also equipped with permanent magnetic pins ( 30 ), which correspond with the ferromagnetic centring lugs ( 28 ) of the yarn drawing nozzle ( 13 ).
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