Patent ID: 7409840

Claim:
A yarn debris removing apparatus for a circular discoloration knitting machine which has a cylinder rotating about a center shaft and containing a plurality of needles which are movable to perform knitting operation, the yarn debris removing apparatus aiming to remove yarn debris generated during the knitting operation of the circular discoloration knitting machine and comprising: a pressurized air generator to supply compressed air; an electric adaptor which has an air intake connector fixedly located on an upper side of the circular discoloration knitting machine to connect to the pressurized air generator to receive the compressed air, and an air outlet connector on a lower end rotating with the cylinder and being connected to the air intake connector to output the compressed air; and a negative pressure generator which is fixedly located below the air outlet connector and rotated synchronously therewith, and has an air inlet, an air outlet and a negative pressure suction nozzle, the air inlet being connected to the air intake connector to input the compressed air, the negative pressure suction nozzle being directed towards the needles, the air outlet being covered by a dust collector to discharge the compressed air and filter out the yarn debris generated during the knitting operation onto the needles and sucked by the negative pressure suction nozzle.