The Analysis On The Structure And Properties Of Computer Hosiery Machine

Computer Hosiery Machine is a mechanical-electrical integration and high-level intelligent modern knitting equipment. Due to the special structure and complex process, now at home there is still lack of a corresponding study on it. With the rapid development of high-tech in textile and the rise of our province's hosiery industry, the research on technology of computer hosiery machine has become more and more important.The research on structure and properties of computer hosiery machine both theory and experiment has been done in this paper. Through the research and exploration of computer hosiery's structure, principle and process, systematically studied the computer socks knitting process of stitch-forming mechanism and shape-knitting mechanism,and the shaping, force status and processing conditions, and focused on analysing the different needles trajectory ,and studying the cooperation of the movement of knitting needles and cam, as well as hosiery cast on ,welt turning, and the knitting of heel and toe, in order to improve the understanding of computer hosiery's knitting technologies. The main work and conclusions are listed as follows:(1)Thesis studied the computer hosiery machine structure and role of theory, focusing on the process of knitting needles of different knitting needles motion analysis; Through the motion analysis, functional mapping and association analysis , brought other means of modern analytical methods into the research and analysis of the computer socks Machine structure and properties.(2)This paper took theoretical study and experimental analysis on the current computer socks stitch needle cam systems, and provided the exact determination of the loop system into the process parameters and the needle trajectory ,and then provided a precise process parameters for the structure and properties of socks knitting. Papers analysed the needle walking tracks and the needle force in the process of timing knitting. Through the analysis on the requirements for knitting needles, obtained the requirements of the needle's movement distance and the cam movement under different needles knitting, in order to meet the requirements of the campaign. (3)This papers did deeply theoretical analysis of elastic spandex yarn yarn-feeding device, and then researched the accurate feeding condition and the process requirements with different types of yarn and different knitting conditions. Through modeling analysis, studied the elastic spandex yarn tension fluctuations'influence on the accuracy of yarn feeding , thus provided a analysis basis for optimization process of feeding yarn.(4)The principle of shape-forming and fashioned knitting technology were analysed in this paper, and the impact of the working accuracy of narrowing picker and widening picker were also researched .Meanwhile, the paper studied the instantaneous force of the needles and cam in the widening process, found out the condition of the needles and cam's stability movement, in order to improve the performance of the knitting sector.(5)After analysing the principle of the heel and toe's shape-forming and the technology of fashioned knitting, firstly proposed the heel's mathematical modeling using NURBS curve, and explored the process to build the sphere knitted mathematical modeling. According to flat graphics and three-dimensional structural relationship,and combined with the theory of narrowing and widening process, and finally deduced the corresponding row number of knitting needles to work with the expression of the relationship.(6)According to the structural characteristics of the airflow stretch-conveyor device, did research and simulation on the airflow field, and analysed the principle of the mechanism of stretch tension .Through the study of airflow fluid of the U-pull , principle of airflow stretch, and related experiments research result, analysed the changes relationship that pulling air conveyor and airflow field parameters changes had influences on the size of traction forces.