发明名称 Weft feeder for eliminating yarn tension peaks
摘要 PCT No. PCT/EP93/03086 Sec. 371 Date Jun. 29, 1995 Sec. 102(e) Date Jun. 29, 1995 PCT Filed Nov. 4, 1993 PCT Pub. No. WO94/10075 PCT Pub. Date May 11, 1994From a weft feeder (AT), weft yarn (T) is unwound from a reserve (R) on a drum (3) located at an outlet end of the weft feeder (AT). A yarn-braking device (1) includes a frustoconical braking element (6) with varying flexibility and a cup support (8) with an open base. The braking element (6) has narrow tongues (7) placed side-by-side. In the braking element (6), the tongues (7) join together, at a major circumference, into a band (6A) with a smoothly and strictly continuous surface engaging an outlet end of the drum (3), while they are free and freely bear, at a minor circumference, against an inner periphery of the cup support (8). The braking element (6) is connected to the cup support (8) such that the former can be deformed and/or perform limited movements in every direction. An outlet yarn guide (4) is separate from the braking element (6) and is kept motionless, coaxial to the drum (3), while braking takes place.
申请公布号 US5577536(A) 申请公布日期 1996.11.26
申请号 US19950428179 申请日期 1995.06.29
申请人 NUOVA ROJ ELECTROTEX S.R.L. 发明人 MAINA, BRUNO
分类号 B65H51/22;D03D47/36;(IPC1-7):D03D47/34 主分类号 B65H51/22
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