Apparatus for condensing a drafted fiber strand
AssigneesFritz Stahlecker, Hans Stahlecker
InventorsKurt Lang, Fritz Stahlecker
Life of this patent
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Abstract
A draft free condensing zone for condensing a drafted fiber strand is provided between a front roller pair of a drafting unit of a ring spinning machine and a delivery roller pair arranged downstream thereof. The apparatus for condensing comprises an air-permeable und suctioned sliding surface which is in contact with the fiber strand, under which sliding surface is located a suction slit which is stationarily arranged and extends essentially in transport direction of the fiber strand. The sliding surface is the front surface of a rotating disc, whose rotational axle extends essentially perpendicular to the transport direction of the fiber strand.
Claims29
An apparatus for condensing a drafted fiber strand in a condensing zone between a front roller pair of a drafting unit and a delivery roller pair, which apparatus includes an air permeable and suctioned sliding surface, which is movable and in contact with the fiber strand, under which sliding surface a suction slit, stationarily arranged and extending essentially in transport direction of the fiber strand, is located, wherein the sliding surface is a front and end face surface of a rotating disc, whose rotational axle extends essentially perpendicular to the transport direction of the fiber strand wherein the diameter of the disc corresponds approximately to the distance of the nipping lines between the front roller pair and delivery roller pair.
A condenser arrangement for condensing a fiber strand in a condensing zone moving between first and second nipping locations, comprising:
- a rotatable perforated disk having an end face which in use forms a sliding surface which contacts the fiber strand between the nipping points, and
- a suction device operable to apply suction to the disk by way of a suction slit facing an opposite end face of the disk wherein said suction means extends in essentially a transport direction of the fiber strand so as to continuously condense said strand as it travels over the sliding surface.
Dependencies are inferred from the claim text.