Patent ID: 7784308

Claim:
A yarn feeding plate double-sided floss blowing apparatus for circular knitting machines located in a circular knitting machine which includes a needle cylinder located annularly thereof holding a plurality of knitting needles, a plurality of yarn guiding apertures and horizontal yarn guiding blades located annularly above the needle cylinder and a plurality of vertical yarn feeding plates, the floss blowing apparatus comprising: a fixed post fixedly and axially located in the center of the circular knitting machine; a rotation supply unit which is axially mounted on the fixed post to lead pressurized air into and includes a driving motor to drive the floss blowing apparatus to rotate relative to the fixed post; and an air blowing unit which is connected to the rotation supply unit; wherein the air blowing unit includes: a first air blowing duct which contains one end connected to the rotation supply unit and the other end extended above the yarn feeding plates and bent towards a lower half portion of an outer side of the yarn feeding plates to form a first air ejection nozzle facing directly the lower half portion of the outer side of the yarn feeding plates; and a second air blowing duct which contains one end connected to the first air blowing duct and the other end extended and close to a lower half portion of an inner side of the yarn feeding plates and above the knitting needles to form a second air ejection nozzle facing directly the lower half portion of the inner side of the yarn feeding plates.