DEVICE AND METHOD FOR REALIZING BLENDING AND COLOR MIXING BASED ON TRIPLE-ROVING COUPLING DRAFTING AND TWISTING SYSTEM, AND COLORFUL YARN PREPARED VIA METHOD

摘要

A device and method for realizing blending and color mixing based on a triple-roving coupling drafting and twisting system, the device comprising a drafting and twisting system consisting of a set of rear rollers and a set of front rollers; the set of rear rollers comprises a combination rear leather roller (4) and a combination rear roller (5); the set of front rollers comprises a front leather roller (6) and a front roller (7); and the set of rear rollers is a combination rear roller having three degrees of rotational freedom and formed by sequentially positioning three sections of rings (8, 9, 10) with the same outer diameter on the same spindle. Each part of a drafting mechanism having three degrees of freedom is independently controlled for on-demand configuration of the blending ratio of the roving of different components or different colors and the configuration of the distributed length of the roving on yarns.