基于环锭纺的数码纺纱方法

为扩展环锭纺纱产品种类，通过对环锭纺细纱机后罗拉机械结构的创新设计，并借助程序控制的伺服电动机驱动，使后罗拉控制纤维喂入由单一钳口变为多个钳口，且各钳口的喂入速度单独可调，从而实现多根粗纱以不同速度的异步喂入，纺成的细纱具有线密度和纤维混纺比例可以沿长度方向变化的特点（这种纺纱方法称为数码纺纱）。在构建三通道粗纱数码纺纱系统的基础上，以色纺为例，给出了数码纱品种的分类方法，并就混色纱、渐变纱、段彩纱、竹节纱、彩节纱和双变纱６ 类产品的变化特征作了分析。数码纺纱方法在加工柔性和品种多样化方面显示出特有优势和发展潜力

Digital spinning method devoloped from ring spinning

In order to extend product variety of ring spinning system, the mechanical structure of back rollers on ring spinning system was creatively redesigned. This new design increases the feeding nip of back rollers in one spinning unit from single to multiple, and each back roller is driven by a servo motor. The feeding speed of each nip can be separately adjusted to realize the asynchronous feeding of several rovings. The linear density or blending ratio of the yarn spun by this system varied along the lengthwise direction, and this spinning method is defined as digital ring spinning. Based on the Digital Ring Spinning of three rovings, taking the colored spun yarn as an example, the digital spun yarns could be classified as melange yarn, gradient color yarn, section color yarn, slub yarn, slub color yarn and bivariate yarn, and the characteristics of the six yarns were also analyzed. The advantages in flexible processing and product diversification of this spinning method are well shown.