超高速纺丝吸丝枪吸丝效率影响因素的研究

为了阐明生产条件和纱线规格对吸丝枪吸丝效率的影响,测试了不同纱线种类、纱线喂入速度v和供气压力(表压)p下吸丝枪的吸丝张力F和压缩空气质量流率G,分析了这些因素对吸丝枪吸丝效率η(η=F/G)的影响机理,得到如下结果:p一定时,随着v的增加,F和η减小;v一定时,随着p的增大,F增大,但η下降;相同规格的全牵伸丝(FDY)比拉伸变形丝(DTY)的F和η大;同一种类纱线,线密度越大,F和η越大。研究表明:不同的产品品种和生产条件,应该合理选择吸丝枪并选用合适的供气压力,从而提高生产效率,降低能耗。

RESEARCH ON THE INFLUENCE FACTORS OF YARN SUCTION EFFICIENCY OF HIGH ORIENTED YARN SUCTION GUN

For clarifying the effect of production conditions and yarn regularity on the yarn suction efficiency of yarn suction gun, we measured the yarn suction force F, the mass flow rate of compressed air G and analyzed the yarn suction efficiencyη （η= F/G） , feeding different yarns under different feed speed v and supplied air pressure p. The results show that： when p is fixed, F and ηdecrease with an increase in v. When v is fixed, F increases with p, however ηdecreases. F and ηfor full drawn yarn （FDY） are larger than those for drawn textured yarn （DTY） of same fineness. For the same type of yarns, F and ηincrease with the yarn fineness. It is suggested that higher production efficiency with low energy consumption can be obtained by using a rational yarn suction gun and supplying a rational air pressure, according to the yarn characteristics and producing conditions when producing a yarn.