The basic structure of the injection mold can be divided into seven parts according to its use function: molding parts, pouring system, guiding mechanism, ejection device, lateral parting and core pulling mechanism, cooling and heating system and exhaust system.
Molded parts It refers to the parts that make up the mold cavity.Mainly include: punch, die, core, forming rod, forming ring and inserts and other parts.
The pouring system refers to the plastic flow channel in the mold from the nozzle of the injection molding machine to the cavity.Ordinary pouring system is composed of main runner, branch runner, gate, cold slug hole and so on.
In the plastic mold, the guiding mechanism mainly has the function of positioning, guiding and bearing a certain side pressure to ensure the accurate clamping of the moving and fixed molds. The mold clamping guide mechanism consists of a guide post, a guide sleeve or a guide hole (directly opened on the template), a positioning cone and so on.
The ejector device mainly plays the role of ejecting the parts from the mold. It is composed of ejector rod or ejector tube or push plate, ejector plate, ejector fixed plate, reset rod and pull rod.
Lateral parting and core pulling mechanism
Cooling and heating system