Abstract: A hot runner injection mould for notebook computer display frame was designed based on the process and structure of the frame. The analysis of parting surface, the gating system, the side corepulling mechanism, exhaust and the cooling system of the mould was carried out and a reasonable mould structure was determined. The sophisticated design of the hot runner, the slider and the slanted ejector pin not only increased the quality of the product and labor capacity, but also reduced the machining cost of the product. An idea for the injection mould design of similar parts was given.

Key words: display Frame, injection Mould, Hot Runner, slanted ejector pin, side-drawing mechanism