Design of material sorting conveyor control system based on PLC
Gong Li
Xi'AN MINGDE INSTITUTE OF TECHNOLOGY
DOI: https://doi.org/10.59429/esta.v13i2.14554
Keywords: PLC; material sorting; conveyor belt; automatic control; industrial automation
Abstract
To address the low efficiency, high error rate, excessive labor cost and poor safety of traditional manual material sorting, this paper develops a PLC-based automatic control system for material sorting conveyors catering to industrial production demands. Taking Siemens S7-200 SMART PLC as the core controller, the system integrates sensor detection, conveyor driving, sorting execution and human-computer interaction modules to realize automatic identification, transmission and classified sorting of materials with different textures and sizes. This paper systematically presents the system overall scheme, hardware selection, circuit design, software logic and debugging process. Experimental results show that the system features high stability, fast response and high sorting precision. It can replace manual sorting effectively, reduce production and maintenance costs, and improve industrial automation level, possessing favorable application and promotion value.
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