Influence to the triangular area and yarn structure by tri-component spinning processing;

The spinning mechanism of MVS and the yarn structure are studied.

Throuth the study of the yarn structure , the main reason for this special structure is analysised ,and the corresponding measures for improving the quality of yarn is gotten, and provide the theoretical basis for improving the machinery and equipment sector to further enhance the friction yarn quality .

Design of stepper motor driver for spindle mechanism;

The loop-forming principles of yarn feeding apparatus in the carpet tufting machine is introduced, then the mathematic model of transversing bucking-out system is created and the formula of theoretical compensation rate is obtained, which measured up to physical circumstances according to the loop-forming principles and rug-overtufting technological requirements.