Flow Control of Runner in Injection Mold for Controlling Part Production Using Mechanisms: A Comparative Study of Mechanisms
摘要
In injection mold technology, family mold is use for manufacturing two or more plastic components in industry. Molding process is influenced by parameters like mold temperature, injection pressure, holding pressure, cooling temperature, part mass, runner and gate parameter, plastic melt temperature or combination of above, which affect component quality and molding cycle time. The control of molten plastic material flow within runner system is very critical factor for optimized part production. The current research is focused on manufacturing of four different parts (A, B, C, and D-all are alphabets) in family mold with two types of mechanisms, i.e., sprue rotating gear and cam and follower. This system allows the mold to produce any one or combination of two, three, or four components in a single go. Mechanism is used in mold for these switching. This work also focusing on comparative study of sprue rotating in one mold and combination of both mechanisms in another mold. And also studied about required fill time and effect of injection pressure in process on all molding conditions.