转杯纺纱机生产竹节纱的原理分析

在转杯纺纱机纺杯上加装阻尼块可以生产短竹节纱，改变喂棉速度和引纱速度可以纺制长竹节纱。介绍了利用可编程序控制器和变频器对BD200RCE型、BD200SN型转杯纺纱机进行传动改造生产长竹节纱的方法；分析了高速喂棉时间、正常速度喂棉时间、变速倍数、纺杯直径及机械惯性对转杯纺竹节纱规格的影响；介绍了选定转杯纺竹节纱捻系数应考虑的因素及开发生产的转杯纺竹节纱产品。

Principle Analysis of Producing Slubby Yarn on Rotor Spinning Machine

The short slubby yarn can be produced if putting damper on turbine of rotor spinning machine, the long slubby yarn can be produced if changing the speed of feeding sliver and delivery yarn. A method of producing long slubby yarn is introduced that is reforming the driving of BD200RCE and BD200SN rotor spinning machine according to the programmable controller and frequency converter. The influences on the slubby yarn characteristics of rotor spinning machine are analysed which are high-speed feeding time, normal-speed feeding time, change-speed multiple, turbine diameter and mechanical inertia. The considerable elements of selecting twister factor and new rotor spinning products are introduced.