Flame-retardant insulation board shearing device

The utility model discloses a flame-retardant insulation board shearing device which comprises a base, a mechanism groove is formed in the base, a half gear is rotatably connected to the inner wall ofthe mechanism groove, a driving motor is fixedly connected to the side wall of the base, and an output shaft of the driving motor penetrates through the side wall of the base and is coaxially and fixedly connected with the half gear. A gear is connected to the inner wall of the mechanism groove, the gear is meshed with the toothed part of the half gear, and a first bevel gear is coaxially and fixedly connected to the side wall of the gear. The driving motor rotates continuously to drive the half gear to rotate, so that the friction wheel rotates intermittently, the flame-retardant insulationboard is conveyed for a certain distance, meanwhile, under the linkage of the first bevel gear and the second bevel gear, the cutting board and the cutting edge rotate downwards by a certain angle, then the flame-retardant ins