Automatic blockage removing device

The invention relates to an automatic blockage removing device. The device is characterized by comprising a flat conveying block, a first round bar, a second round bar, a cylinder, a first fixing seat, a second fixing seat, a first pneumatic elbow lock pipe, a second pneumatic elbow lock pipe, a sliding rail seat, a first sliding block, a second sliding block, a first claw head, a second claw head, an adjusting screw rod, a fixing screw, a first connecting rod, a second connecting rod, a first rotating shaft, a second rotating shaft, a cylinder inner cavity and a piston. The automatic blockage removing device is simple in structure and reasonable in design, the first round bar and the second round bar which can be automatically drawn close and opened are arranged in the flat conveying block, when a guide pin is clamped, the first round bar and the second round bar are automatically opened and then drawn close, the clamped guide pin falls off, the effect of automatically removing the pin clamping fault is achi