According to the geometric structure characteristics of plastic parts, dimensional precision requirements, batch size, mold manufacturing difficulty, mold cost and so on to determine the number of cavity and its arrangement.
According to the geometric structure characteristics of plastic parts, dimensional precision requirements, batch size, mold manufacturing difficulty, mold cost and so on to determine the number of cavity and its arrangement.
The position of the parting surface should be conducive to mold processing, venting, ejection and the surface quality of plastic parts. Determine the method of venting and the location and size of vent slot.
Determine the sprue and runner. Choose the appropriate shape, position and size of the gate.
Determine the cooling methods and the shape and position of the cooling bath.
Decide the slide mechanism.
Select the ejection method such as pin ejection, stripper ejection, sleeve ejection, bar ejection and so on.