The parts of plastic mold can be divided into two major categories by usage: molding parts and structure parts.
Molding parts: it is directly in contact with the plastic or in part contact and decides the shape, size and surface quality of plastic parts. It is a core part, such as a convex die, a concave die, a mould core, a threaded core, a thread ring gauge and a insert.
Structure parts: it is the other
plastic mold parts outside the molding parts. Including fixed plate, backing plate, guide parts, gating system, fixed distance parting mechanism and core-pulling mechanism, pushing mechanism etc.. Also includes a heating device and cooling device and standard parts, such as screws, pins, springs, etc..