Automatic control of roller carding machine. Part I: Modeling and validation of roller carding machine

Abstract

This study aimed to develop a dynamic model of a roller carding machine. The roller carding machine used in this study comprised one set each of feed conveyors, feed rollers, licker-in rollers, clothing rollers, a set consisting of a cylinder and doffer and two sets of carding rollers/stripping rollers. In order to establish a dynamic mathematical model of a roller carding machine, this study derived the transfer rate and collecting power of cotton web from the mode of movement, relative velocity, clothing tooth angle and friction force of the main rollers of the system. The transfer delay time of the cotton web was deduced from the clearance among working rollers, corresponding angle of roller center, and angular velocity. Finally, the correctness of the dynamic mathematical model of the roller carding machine derived in this study has been proved from the experiment.