Computer Aided Design of The Cooling System for Plastic Injection Molds

Abstract

The design of plastic injection molds and their cooling systems affect both the dimension, the shape, the quality of a plastic part and the cycle time of process and the cost of mold. In this study, the solid model design of a plastic injection mold and the design of cooling sysytem were possibly carried out without the designer interaction. Developed program permited the use of three types of the cooling system and the different cavity orientations and the multible plastic part placement into the mold cores. The program which was developed by using Visual LISP language and the VBA (Visual BASIC for Application) modules, was applicated in the AutoCAD software domain. Trial studies were presented that the solid model design of plastic injection molds and the cooling systems increased the reliability, the flexibility and the speed of the design.

Keywords

• Computer aided design, Injection mold design, Design of cooling system.

Plastik Enjeksiyon Kalıpları İçin Bilgisayar Destekli Soğutma Sistemi Tasarımı

Öz

Plastik enjeksiyon kalıplarının ve soğutma sisteminin tasarımı, hem ürünün boyut, biçim ve kalitesini, hem de çevrim zamanını ve kalıbın maliyetini doğrudan etkilemektedir. Yapılan çalışmada, plastik enjeksiyon kalıplarının ve soğutma sisteminin katı model olarak tasarımı, mümkün olduğu kadar kullanıcı etkileşiminden uzak olarak gerçekleştirilmiştir. Hazırlanan program, kalıp çekirdeklerinin üç farklı tipte soğutma sistemine, farklı göz yerleşimlerine ve parça sayılarına bağlı olarak tasarımının yapılmasına izin vermektedir. Program akışında, AutoCAD 2007 paket programının yanında Visual LISP ve VBA (Visual BASIC for Application) dilleri de kullanılmıştır. Çalışma kapsamında yürütülen deneme uygulamaları ile plastik enjeksiyon kalıplarının tasarımında hız, esneklik ve tasarım güvenilirliğinin arttığı tespit edilmiştir.

Anahtar Kelimeler

• Bilgisayar destekli tasarım, Enjeksiyon kalıbı tasarımı, Soğutma sistemi tasarımı.

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