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US 4,745,738 AGranted
Cleaning arrangement for open-end friction spinning machine
OwnerFritz Stahleckerinventor
Life of this patent
Estimating the term…
Abstract
An open end friction spinning apparatus is provided in which there are one or more spinning units with respectively two adjacently arranged rollers, rotating in the same direction, and disposed to form a wedge-shaped slot therebetween for accepting fibers and spinning them into a thread of yarn by a friction effect. Mechanical cleaning devices are provided for cleaning the surfaces of the rollers.
Claims22
Open-end friction spinning apparatus comprising:
- at least one pair of friction roller surfaces on which yarn is formed defining a substantially linear yarn forming region therebetween;
- means for withdrawing said formed yarn along said substantially linear yarn forming region;
- and
- cleaning means for cleaning at least one of the pair of friction roller surfaces, said cleaning means mechanically contacting at least a portion of the surface of at least one of the pair of friction roller surfaces during normal yarn formation on and withdrawal from said friction roller surfaces during a cleaning operation.
1 more element
Apparatus for open-end friction spinning comprising:
- a plurality of spinning units, each said spinning unit containing at least one drivable spinning surface rotatable about an axis of rotation, said spinning surface defining a yarn formation zone along a line adjacent said surface, said axis of rotation and said line being substantially coplanar;
- mechanical cleaning means for cleaning said spinning surface, said cleaning means being selectively engagable with said surface at a position outside said yarn formation zone, said cleaning means being capable of cleaning said spinning surface while yarn is being formed in said yarn formation zone;
- housing means surrounding said spinning surface and said yarn formation zone, said mechanical cleaning means being fastened to an inside portion of said housing means;
- and
- adjusting screw means passing through bores in said housing means, said adjusting screw means having a first end in contact with said cleaning means and a second end extending outside of said housing means, said adjusting means being selectively movable from outside said housing to effect a preselected separation between said cleaning means and said spinning surface.
2 more elements
Dependencies are inferred from the claim text.