Shearing device for steel belt machining line

The shearing device comprises a machine base, shearing mechanisms and a driving structure, each shearing mechanism comprises a base body, a hydraulic cylinder, a clamping plate, a vertical rod, a pressing plate, a pair of scissors and a cutting plate, a containing opening is formed in one side of each base body, a piston rod of each hydraulic cylinder penetrates through the top wall of the containing opening and extends into the containing opening, the clamping plates are arranged at the upper ends of the piston rods, and the vertical rods are arranged at the lower ends of the clamping plates. The vertical rod is perpendicularly arranged on the bottom face of the clamping plate, the pressing plate slidably sleeves the vertical rod, the vertical rod is sleeved with a spring, one end of the spring is connected to the bottom face of the clamping plate, and the other end of the spring is connected to the top face of the pressing plate. The scissors are fixedly connected to the bottom end of a piston rod of the hy