Opening device for an open-end spinning machine and method of making same
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United States of America Patent
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-
Sep 14, 1999
Grant Date -
N/A
app pub date -
Feb 10, 1998
filing date -
Feb 22, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flexible sealing ring is arranged at an opening roller of an open-end spinning machine which rotates in a chamber of a housing connected to a vacuum source, which sealing ring is supported concentrically to the opening roller in the housing. In order to seal the chamber against the open atmosphere, the sealing ring comprises a sealing lip, to which a sealing surface of a collar of the opening roller is arranged. The sealing ring is disposed, under the action of the pressure drop present between the open atmosphere and the chamber, on a stopping surface which determines the operational position of the sealing ring, which stopping surface is itself arranged preferably at the housing, while, however, in some embodiments, it is arranged at the opening roller itself. The sealing lip defines the smallest diameter of the sealing ring, which is larger than the diameter of the combing structure of the opening roller.
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