Abstract
The present paper proposed is carries on in the production practice foundation ,the designed rubber seals and rubber seals die are used in the actual production . Briefed the rubber mold at present situation and the development、 the trend of rubber mold design methodology and the use CAD software like UG to design mold. Stated rubber mold design principles, how to select the rubber mold parting surface, mold cavity volume, die position, Mold and contraction rates. And specific about the injection of a pressure-cylinder shroud seals die design from product development to mold design in the entire process, use the software like UG, AutoCAD to draw 3D maps and 2D engineering drawings of product and mold.