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    • 4. 发明公开
    • Drafting device for spinning machinery
    • StreckvorrichtungfürSpinnmaschine
    • EP2405039A1
    • 2012-01-11
    • EP10007018.4
    • 2010-07-07
    • Vantex Technologies GmbH
    • Micheletti, Umberto
    • D01H5/22D01H5/44D01H5/56
    • D01H5/22D01H5/44D01H5/56
    • Drafting device (10) for use in spinning machinery and for drafting discontinuous fibers, such as cotton, linen, wool, jute, ramie, hemp or man-made fibers, with a pair of feed rollers (2), a pair of draft rollers (3), a pair of control rollers (4) and a pair of delivery rollers (5), being arranged in this order in a rove feed direction (F) defining a drafting zone (D) composed of three sub-drafting zones (A, B, C), whereby the rollers (2, 3, 4) are driven at a respective predetermined speed in such a manner that a drafting action is exerted on the rove (1), wherein said control rollers (4) are both provided with an active drive mechanism and said control rollers (4) are mounted in a fixed but contact-free manner with a defmed control gap (6) between them of a predetermined dimension.
    • 用于纺纱机械和起草不连续纤维如棉,亚麻,羊毛,黄麻,苎麻,大麻或人造纤维的牵伸装置(10),具有一对进料辊(2),一对牵伸辊 (3),一对控制辊(4)和一对输送辊(5),其顺序布置在限定由三个副牵伸区(D)构成的牵伸区(D)的滚动进给方向(F) A,B,C),由此以相应的预定速度驱动辊子(2,3,4),使得牵引作用施加在纱线(1)上,其中所述控制辊(4)都是 设置有主动驱动机构,并且所述控制辊(4)以固定但不接触的方式安装在其间具有预定尺寸的定义的控制间隙(6)。