![]() Zheng J, Wang Y, Li Z (2007) KBE-based stamping process paths generated for automobile panels. Kulon J, Broomhead P, Mynors DJ (2006) Applying knowledge-based engineering to traditional manufacturing design. Penoyer JA, Burnett G, Fawcett DJ (2000) Knowledge based product life cycle system: principles of integration of KBE and C3P. Kumar V, Madan J, Gupta P (2013) A system for design of multicavity die casting dies from part product model. Ma YS, Tor SB, Britton GA (2003) The development of a standard component library for plastic injection for plastic injection mould design using an object-oriented approach. Neo TL, Lee KS (2001) Three-dimensional kernel development for injection mould design. Low MLH, Lee KS (2003) A parametric-controlled cavity layout design system for a plastic injection mould. Mok CK, Chin KS, Ho KL (2001) An interactive knowledge-based CAD system for mould design in injection moulding processes. Ye XG, Fu YH, Lee XS (2000) Automated assembly modeling for plastic injection moulds. Through standardized design process, it can greatly shorten the design time to guide users to quickly complete the design, while reducing design errors to improve working efficiency by the automatic integration function. At the mold design stage, through the acquisition of its parameters, it can automatically produce a suitable ejector pin. Through computer programming calculation and judgment, the proposed method can automatically recognize narrow slot features to reduce the time at the recognition stage and record the diameters of the ejector pin and its coordinate position in feature parameters. Based on the geometric relationship of the surfaces, edges of the core’s narrow slot, this study summarized an algorithm to automatically recognize the narrow slot feature by programming an algorithm. Under the framework of CAD software, this study developed the narrow slot feature recognition, integrated the mold design, and automated ejector pin production. ![]() Through ejector pin design, during the ejection process, the ejector pin can eject products to successfully leave the mold core. ![]() When having narrow slot features in the mold core, the molded products cannot be smoothly removed from the mold core.
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