Sound insulation material cutting device

The utility model relates to a sound insulation material cutting device which is suitable for cutting sound insulation sheets or coiled materials of automobiles. The sound insulation material cutting device comprises an electromotor 5, a rolling shaft 1, a panel 2, a conveying belt 3, a pressing plate 7, a bendable blade 6, a driving belt 8 and a pivot 9, wherein the rolling shaft 1 is fixed above the panel 2 through the pivot 9, the electromotor 5 is used for directly driving the conveying belt 3 and driving the rolling shaft 1 and the conveying belt 3 to synchronously move through the driving belt 8, the conveying belt 3 is positioned between the rolling shaft 1 and the panel 2, the bendable blade 6 is embedded in the pressing plate 7, and the pressing plate 7 is fixed on the conveying belt 3. The sound insulation material cutting device can be used for cutting the sound insulation sheets or coiled materials by using the pressure between the rolling shaft and the panel; the sound insulation materials and th