Real time dual bus control method for warp knitting machine

Abstract

A real-time dual-bus control method for a warp knitting machine is provided. The method utilizes two buses. The bus No.1 controls the operation of three warp shafts, a traction shaft and a main shaft individually. A warp knitting command is sent to a corresponding warp shaft servo controller via the bus No.1, and the warp shaft servo controller controls the rotation of a servomotor and regulates the rotation speed in real time according to the warp knitting command, thereby ensuring the feed capacity of the three warp shafts to meet the requirement for patterns. A traction command is sent to a traction shaft servo controller via the bus No.1, and the traction shaft servo controller controls an AC servomotor to pull fabrics out of the warp knitting machine according to the speed required for patterns. The bus No.2 is connected with a counting module and an on-off input / output module. The buses No. 1 and No. 2 are interconnected and intercommunicated via a router. A man-machine interface computer is also used to process signals to control the two buses. The invention has the advantages of rapid data processing, high reliability, independent control circuits with no interference upon failure of on computer or module, easy maintenance and good maintainability.

Description

technical field [0001] The invention relates to a control method of a warp knitting machine, in particular to a method for real-time control of the warp knitting machine by using a microcomputer and dual buses. Background technique [0002] With the continuous development of computer technology, it is quite common to use microcomputer-controlled warp knitting machines to weave various patterns of fabrics. Most of them are centralized control, that is, a computer is used to control the rotation of several warp beams and pulling shafts in time sharing, the cam controls the lateral movement distance of the bar, and the main shaft drives the loop forming mechanism to move up and down, back and forth, so as to weave all kinds of warp beams. All kinds of fabrics that need patterns. This centralized control method using only one computer has a relatively low manufacturing cost, but the computing power limits the increase in the speed of the warp knitting machine, and cannot realiz...

AI Technical Summary

Problems solved by technology

This centralized control method using only one computer has relatively low manufacturing costs, but the computing power limits the increase in the speed of the warp knitting machine, and cannot realize real-time control of the high-speed warp knitting machine, especially for complex patterns and patterns. It is difficult to meet the technical requirements of high-grade fabrics; at the same time, when a certain system fails, it will affect the control of the whole machine, and its reliability, stability and maintainability are poor

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