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US 10,767,284 B2Granted
Thread draw-off nozzle having notches extending radially to the nozzle bore
AssigneeMaschinenfabrik Rieter AG
InventorsGuenter Baur, Michael Basting
Life of this patent
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Abstract
A thread draw-off nozzle for an open-end rotor spinning device includes an entrance-side nozzle funnel and an exit-side nozzle bore adjoining the nozzle funnel. A plurality of notches are arranged in the nozzle funnel and extend essentially radial to the nozzle bore. Each notch has an inlet wall, a baffle wall, a radially outer notch inlet, and a radially inner notch outlet. Each notch further includes an essentially flat notch bottom arranged between the inlet wall and the baffle wall.
Claims11
A thread draw-off nozzle for an open-end rotor spinning device, comprising:
- an entrance-side nozzle funnel;
- an exit-side nozzle bore adjoining the nozzle funnel;
- a plurality of notches arranged in the nozzle funnel and extending radial to the nozzle bore, each notch comprising an inlet wall, a baffle wall, a radially outer notch inlet, and a radially inner notch outlet;
- each notch further comprising a notch bottom with a width (B) of between 0.18 mm and 0.24 mm between the inlet wall and the baffle wall;
- wherein the notch inlet is in the nozzle funnel spaced apart from a front surface of the nozzle funnel;
- and
- wherein, for each notch, the baffle wall has at least one baffle wall angle,
- the inlet wall has at least one inlet wall angle,
- and the at least one baffle wall angle is steeper than the at least one inlet wall angle relative to the notch bottom.
6 more elements
Dependencies are inferred from the claim text.