Distributed circular machine control system based on STM 32 and FPGA

Abstract

The invention discloses a distributed circular machine control system based on STM 32 and FPGA. The distributed circular machine control system comprises a management layer, a coordination layer and an execution layer. The management layer reads pattern data files in a USB storage device through a USB device interface driving chip, stores pattern data into a static data storage device and then starts a circular machine rotating motor, a Hall sensor and an optical-electricity encoder which are arranged on a circular machine transmit circle signals, needle signals and speeds of the circular machine at the present to the management layer through the coordination layer, the management layer reads the pattern data in the static data storage device according to the circle signals and the needle signals at the present and transmits corresponding movement data to the execution layer through the coordination layer, the execution layer carries out analysis on the transmitted data and controls a needle selector, an air valve, and a stepping motor arranged on the circular machine to move according to demands, and therefore jacquard weaving work can be finished. The distributed circular machine control system based on the STM 32 and the FPGA improves stability, reliability and parallel control performance.

Description

technical field [0001] The invention relates to the technical field of circular knitting machine control in the knitting industry, in particular to a distributed circular knitting machine control system based on STM32 and FPGA. Background technique [0002] Circular knitting machine is a kind of weft knitting machine. It is one of the main mechanical equipment in the knitting industry. It has the characteristics of high output, short process flow, and wide applicability of raw materials. with cloth. In recent years, manufacturers at home and abroad have been working hard to develop new models according to customer needs, and have improved in innovative design, material selection, processing technology, manufacturing assembly, automatic control, etc., which makes the production of circular knitting machines Manufacturing has developed rapidly, and double-sided jacquard circular knitting machines have appeared with the characteristics of high gauge, fine gauge, multiple chann...

AI Technical Summary

Problems solved by technology

However, there is still a certain gap with foreign countries in the manufacturing and control technology of high-end circular knitting machines with high gauge, fine gauge, multi-channel, high precision, and multi-function, especially in intelligent control, electronic needle selection, multi-function, etc. Further in-depth research is needed on technologies such as the number of channels and actuator drives

At the same time, the circular knitting machine control system adopts a centralized control method, which has problems such as poor system scalability and insufficient stability.

[0004] After years of development, there is a large number of old circular machines in the domestic market. These old machines are left idle due to the aging or backwardness of the control system, resulting in a great waste of resources.

In addition, in order to reduce capital investment, some domestic enterprises have purchased a large number of second-hand circular knitting machines from abroad at a low price. These machines have good mechanical properties, but most of the control systems have failed to work properly.

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