Device for cutting and slicing circuit board

The invention discloses a circuit board cutting and slicing device which comprises an operation table, a plurality of conveying rollers are arranged at the top of the operation table, a garbage suction mechanism is arranged at the bottoms of the conveying rollers, a concave support is arranged above the conveying rollers, a first rotating shaft is rotationally connected to the inner wall of the concave support, and a second rotating shaft is rotationally connected to the inner wall of the first rotating shaft. The outer wall of the first rotating shaft is fixedly connected with a plurality of cutting knives, one side of the first rotating shaft is provided with a second rotating shaft, the outer walls of the first rotating shaft and the second rotating shaft are provided with a first belt wheel and a second belt wheel respectively, one side of the first rotating shaft is provided with a cutting motor, the outer walls of the first belt wheel and the second belt wheel are sleeved with the same belt, and one end