基于PLC的核桃仁分选装置控制系统设计

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中图分类号：S226.5 文献标识码：A 文章编号：2095-2953（2025）05-0033-05

Design of Control System for Walnut Kernel Sorting Device Based on PLC

DING Xiang， LI Wei *

（School of Mechanicaland Transportation Enginering，Southwest ForestryUniversity，Kunming Yunnan 65O224，China）

Abstract：Currently，the sorting accuracy of walnut kernel color sorting equipment is low.It cannot completely separategoodandbad walnut kernels，so badwalnut kernelsarestillmixed with some goodones.In viewof this problem，a set of walnut kernel automatic sorting deviceis designed to carryout secondary sorting of walnut kernels.The device takes the appearance quality of color- sorted walnut kernels as the sorting control index and detects signals through industrial cameras and photoelectric sensors.A PLC control system and machine vision technology are used to control the whole identification and sorting processof the walnut kernel sorting device.Meanwhile，the functionof the sortingdevice is simulated and tested using Siemens HMI software.The results show that when the sorting device is usedincombination with color sorting equipment，it notonly has high sorting eficiency，but also achieves anaccuracy of more than 95% in sorting the appearance quality and size grades of walnut kernels.

Key words：PLC control system；machine vision；walnut kernel sorting；HMI simulation

云南省核桃种植面积、产量和产值均居全国首位，是世界最大的核桃种植基地[1-2]。（剩余4294字）