Apparatus for removing a faulty weft yarn from a weaving shed
AssigneeSulzer Brothers Limited
InventorHubertus H. Aarts
Life of this patent
Estimating the term…
Abstract
The arrangement for removing a faulty weft yarn from a shed comprises a manipulator for physically moving a yarn clamp carrier between a rest position and a yarn clamping position for engaging a weft yarn. A needle is provided on the carrier for releasing the weft yarn from the beat-up line of the cloth for delivery into the yarn clamp. A rotatable storage drum at a yarn release position winds on yarn from the yarn clamp for subsequent delivery to a suction tube for removal.
Claims16
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a yarn clamp;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a drum for winding of the released yarn thereon and a weft yarn catcher disc on said drum for dividing said drum into two parts;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising;
- a yarn clamp;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a rotatably reversible drum for winding of the released yarn thereon whereby in one direction of rotation said drum winds a faulty yarn thereon from said clamp and in an opposite direction of rotation said drum unwinds a weft yarn therefrom;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising;
- a yarn clamp;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a drum for winding of the released yarn thereon, said drum having a conical surface, a catch pin and an actuator for moving said pin between a retracted position in said drum and an extended position projecting from said conical surface;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising;
- a yarn clamp;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position;
- store means at said yarn release position for receiving a released yarn from said clamp, and
- means for removing the released yarn from said store means including a first tube for received a released yarn from said store means and a suction tube extending from said first tube for removing a weft yarn therethrough.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a yarn clamp movable between a yarn clamping position in the shed and a yarn release position outside the shed;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a drum for winding of the released yarn thereon and a weft yarn catcher disc on said drum for engaging a yarn in said clamp in said release position for winding on said drum;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a yarn clamp;
- a weft yarn clamp carrier mounting said yarn clamp;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means mounted on said carrier for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position, said means including a needle rotatably mounted on said carrier and an actuator on said carrier for moving said needle in a plane parallel to the warp direction of the shed;
- store means at said yarn release position for receiving a released yarn from said clamp;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a carrier;
- a yarn clamp mounted on said carrier, said yarn clamp including a projection on said carrier, a jaw rotatably mounted on said carrier opposite said projection for clamping a weft yarn therebetween and an actuator for moving said jaw relative to said projection;
- a manipulator for moving said yarn clamp among a rest position, a yarn clamping position and a yarn release position;
- means mounted on said carrier for releasing a weft yarn from a beat-up line of a cloth into said clamp with said clamp in said clamping position;
- store means at said yarn release position for receiving a released yarn from said clamp;
- and
- means for removing the released yarn from said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a yarn clamp movable between a yarn clamping position in the shed and a yarn release position outside the shed;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a drum for winding of the released yarn thereon, said drum having at least one axial slot in a surface thereof and a slider reciprocably mounted therein for expelling yarn windings from said drum;
- and
- means for removing the released yarn from said drum of said store means.
An apparatus for removing a faulty weft yarn from a shed of warp yarns, said apparatus comprising
- a yarn clamp movable between a yarn clamping position in the shed and a yarn release position outside the shed;
- store means at said yarn release position for receiving a released yarn from said clamp, said store means including a drum for winding of the released yarn thereon, said drum having a conical surface, a catch pin and an actuator for moving said pin between a retracted position in said drum and an extended position projecting from said conical surface;
- and
- means for removing the released yarn from said store means.
Dependencies are inferred from the claim text.