What Are The Driving Methods For Injection Mold Processing?

The driving force (pressing force, clamping force of the injection mold, weight of the falling weight of the material, extrusion force, etc.) of the injection mold processing motion is provided by the power transmission mechanism of the molding machine and equipment.

Electromechanical drive

Such as presses, friction presses, roll forging machines, etc., power and rotary motion are provided by the motor to drive the transmission mechanism, and are connected by the slider and other moving parts of the mold to drive the direction of the mold. The driving force is then transmitted to the mold for injection molding of the raw material.

Electro-hydraulic drive

Electro-hydraulic drive uses a hydraulic or water pump driven by an injection motor to generate hydraulic pressure. And, through the hydraulic transmission control system of the liquid, the hydraulic cylinder or piston connected to the moving part (for example, the moving mold) of the injection mold is driven by the rated pressure generated, thereby driving the moving mold's directional movement. And translational motion relative to the fixed mold. The material is then further compressed so that the material becomes an injection molded part after the forming process.

Pneumatic forming

Pneumatic molding is mainly used in absorption and blow molding processes.

Absorption processing means that when the blow molding mold is in a fixed state, the air pump generates a certain negative pressure so that the plastic sheet is directly sucked and stuck on the surface of the mold, and then a molded part is formed. A gas having a certain pressure is generated by an air pump, and is blown into a cavity with hot-melt plastic or hot-melt glass to expand, deform and adhere to the surface of the cavity to form a molded part.

In addition, the driving of injection mold processing such as aluminum alloy profile, plastic profile, sheet or film usually uses an extrusion molding process. The mold is fixed on the head of the machine, the material passes through the mold in an extruded form, and the relative motion acts on the mold to produce various molded parts. For example, the spiral motion of plastic profiles depends on the screw of a continuous extruder. The plastic is extruded into a mold and passed through the contour of the mold, and then the molding material is cooled and formed. The extruded profile is pulled forward by a traction mechanism for continuous forming.