Material pretreatment device for computer protective film production

The utility model relates to the technical field of processing auxiliary devices, in particular to a material pretreatment device for computer protective film production. The crushing uniformity and the crushing degree of materials can be improved, the sizes of the materials are distinguished, the uniformity of the materials is improved, the phenomenon of non-uniform melting in the later period isreduced, and the use reliability of equipment is improved; the device comprises a box body, a first cavity is formed in the box body, a first motor is arranged on the right side of the first cavity,two sets of first rotating shafts are arranged on the upper side of the first cavity, cutters are fixedly arranged on the outer side walls of the two sets of first rotating shafts, two sets of gears are arranged at the left end of the box body, and second rotating shafts are fixedly arranged at the right ends of the two sets of gears; a filter plate is arranged on the lower side of the first cavity, multiple sets of throug