Research on injection mould design of fixed cover plastic parts

To solve the problem of forming fixed cover plastic parts, plastic materials and the molding process are analyzed with a mold scheme demonstration, structural analysis and economic analysis. The main runner, cold slug well, pull rod, and runner and gate of the gating system are also thus designed. The ejection force is calculated, and the cooling system designed. An assembly diagram of the special injection mould is given. Practical tests have shown that the shell shaped piece injection mould structure is economical, reliable, has a good machining quality and a high production efficiency.