Feeding and discharging device of reheating furnace for pigment firing

The feeding and discharging device comprises a support, a supporting beam, a first sliding rail, a first sliding block and a first sliding plate, a supporting plate is fixed to the right end of the first sliding plate, a finger air cylinder is fixed to the top of the supporting plate, a sliding way composed of two L-shaped plates is arranged above the first sliding rail, and the sliding way is installed on the supporting beam. A supporting frame is fixed to the middle of the supporting beam, a horizontal feeding air cylinder is fixed to the middle of the top of the supporting frame, a vertical telescopic air cylinder is fixed to the piston rod end of the feeding air cylinder, and a push plate is fixed to the bottom of the telescopic air cylinder. During blanking, the finger cylinder is driven by the driving device to move to the right end to clamp a handle of the firing tray, and then the finger cylinder is pulled leftwards, so that the firing tray is separated from the reheating furnace and slides to the lef