Processing device for building sound insulation material

The utility model discloses a processing device for building sound insulation materials, which belongs to the technical field of building material processing and is characterized by comprising two supporting plates, a fixing frame is arranged on the outer side wall between the two supporting plates, and two motors distributed up and down are mounted on the front end face of the fixing frame. The output ends of the two motors penetrate through the front end face of the fixing frame and are fixedly provided with screw rods, the outer side walls of the two screw rods are movably sleeved with sliding blocks, and a cutting knife is detachably connected between the two sliding blocks. Fixing plates are fixedly mounted on the front end face and the rear end face of the supporting plate correspondingly, sliding grooves are formed in the opposite sides of the two fixing plates in a penetrating mode correspondingly, and therefore when the sound insulation material with softness is cut, the sound insulation material is