METHOD AND APPARATUS FOR CARDING OF STAPLE FIBERS

摘要

The present invention relates to a method and apparatus of carding staple fibres like cotton. More particularly, the present invention is directed to an apparatus for carding of staple fibres with minimum number of moving parts and to reduce the need for close tolerances, especially where moving parts are involved, in order improve the manufacturability of the apparatus. Density of input tufts to the carding machine is reduced. Diameter of carding cylinder (7) is reduced, with corresponding increase in its rotational speed, to maintain the peripheral speed. An air guiding element (6) and at least air deflection elements (8) used for capturing long fibres on a perforated roller. This enables elimination of close-set moving parts and simplifications of design. Advantageously, the present invention minimizes the damage to the fibres so that they retain their natural and desirable properties.

主权项

1. An apparatus for carding staple fibres comprising a feeding arrangement with a feed table (1) and a feed roller (2) for feeding tufts of staple fibers; a rotating carding cylinder (7); and one or more carding flats (4a, 4b, 4c), characterized in that the apparatus comprising:
a. the rotating carding cylinder (7) having carding pins (9) on its surface; b. the carding flats (4a, 4b, 4c) co-operating with the said carding cylinder (7) for opening of tufts into individual fibres; c. a zone downstream of the said carding flats (4a, 4b, 4c) where the air stream entrained by rotation of the said carding cylinder (7) is unconstrained; d. an air guiding element (6) to enclose the unconstrained air stream and direct it towards a preferred exit; e. at least one air deflecting element (8) to deflect the generated air stream away from the said carding cylinder (7) towards the said preferred exit; and f. a perforated roller (10) at the preferred exit for doffing fibres entrained in the said air current.