Plastic Injection Mould Design of covered circle

Through the correct analysis of the technology of covered circle, first designed  a set of mould with one module of plastic mold, six cavity according to plastic injection quantity and the rational choice of injection machine. Comprehensive consideration of the molding position, gating system design, plastics and precision, and the structure of the embedded technology shape and launched a position of manufacturing, method, the mould exhaust and operation process and so on many kinds of factors, choose appropriate parting surface. By parting surface again and form and the runner gating system design, complete set of mould design. Described in detail its molding parts including former template, front mould kernel, back mould plate, back mould kernel, back mould set pieces, oblique guide columns, slide steatite etc design and machining process and important parts of the selection of technological parameters and calculation, roll out institutions and pouring system and other structure design process and to try modes and defects are introduced. Consider forming parts work directly with plastic contact, the high pressure, melt, plastic material flow with the flush, stripping between plastic parts is friction. Therefore, molding parts require a correct geometric shape, high precision and low surface roughness, in addition, molding parts also requires reasonable structure, high strength, stiffness and good wear resistance.