The Research And Design Of Computer Jacquard Hosiery Machine

The Computer Jacquard Hose-Machine system is introduced in this paper. There are many weaknesses in traditional Mechanism Jacquard Hose-Machine, but it can't reach the need of production. With the development of Computer Technology in Hose-Machine, Computer Jacquard Hose-Machine comes to being. It has excellence of simple institution, expediency for use, high weaving efficiency and good quality.This paper focuses on the basic theory of computerized Hose-Machine, weaving data preparation, control system implementation, control data file management by FLASH techniques, anti-jamming design, etc. There are innovations in system frame, management of files and design of system stability.Based on a deep research of the working mechanism of Hose-Machine, this paper puts forward a 3 levels control system based on PC and micro-controller and CPLD. The PC part takes charge of knit-pattern design and control-file Creation, and the micro-controller and CPLD make up of the frame of control system. In this schema, 2 micro-controllers are used for the control of the electromagnetic valves and the needle selectors respectively. The other one collects the information of the Hose-Machine's current state and coordinates above 2 micro-controllers. Such configuration divides the control data into 2 files, which are electromagnetic control file and needle selector control file. Details have been given for the creation and management of these two files. Moreover, since in-site circumstance is quite complex, studied system has elaborated an anti-interference design both from the hardware and software aspects to satisfy frequent data exchange and to eliminate possible production loss. Because the knitting is based on exact communication, the paper expounds RS485 protocol implementation in this system.This research brings forward a low-cost and steady-going scheme for upswing Mechanism Hose-Machine and replacing Hose-Machine control system. It also has built a good foundation for research on fully computerized Hose-Machine and accelerating the localization procedure in high-end Hose-Machine.