The utility model provides a dispersing and
grinding device for plastic additive
processing, which comprises a bottom plate and a dispersing box, and can effectively cope with plastic additives with different particle sizes through the use of a first
grinding assembly and a second
grinding assembly and the arrangement of crushing cutters on the surfaces of a first grinding roller and a second grinding roller. After the plastic additive falls into the grinding box from the dispersing box, a second motor and a third motor respectively drive a first grinding roller to rotate
clockwise and a second grinding roller to rotate anticlockwise to form relative movement to
grind the material, and relatively large plastic additive blocks can be crushed in time by a crushing cutter; the situation that large-particle materials are driven by the grinding rollers to idle and cannot be subjected to grinding force is avoided, so that all the materials can be fully ground, the grinding uniformity and
fineness are further improved, the grinding efficiency is improved, the problem that grinding is not thorough due to the fact that the particle sizes of the materials are not uniform is solved, and the product quality is improved. And the high requirements of plastic additive
processing on
fineness and consistency are met.