The die head of the plastic granulator has three types, including electric gear die head, hydraulic die head and automatic slag filter. The function of the machine head is to transform the rotating plastic melt into a parallel linear motion so that the plastic melt is introduced into the mold sleeve evenly and smoothly, and the plastic is given the necessary pressure for molding.
A split sleeve is usually placed to ensure that the plastic flow path in the machine head is reasonable and eliminates the dead angle where the plastic accumulates. Besides, a grading ring is usually also provided to eliminate pressure fluctuations during plastic extrusion. Mold calibration and adjustment devices are also installed on the machine head to adjust and correct the concentricity of the core and the mold sleeve.