Design of Pouring Cup Liquid Level Control System in Sand Casting

In this paper, aiming at the low degree of automation of the sand casting in gravity casting, the mathematical modeling and simulation of the pouring part of the plug-in casting machine is carried out, and the control of the bottom-injection casting machine based on machine vision is designed. System-The closed-loop gating system controlled by PID is obtained by obtaining the ratio of the area of high-temperature molten iron in the sand-type pouring cup to the total area of the pouring cup. The hardware platform was built, and the solution for automatic control of the pouring cup liquid level in the sand casting was given, which greatly reduced the labor of the workers and improved the production efficiency of the sand casting.