PVC powder metering device

The utility model provides a PVC powder metering device, and relates to the technical field of PVC powder processing. Comprising a feeding pipe, a weighing chamber and a feeding chamber, the weighing chamber is arranged at the bottom of the feeding pipe in a communicating mode, the feeding chamber is arranged at the bottom of the weighing chamber in a communicating mode, an unblocking assembly is arranged in the feeding pipe, a weighing assembly is arranged in the weighing chamber, a conveying assembly is arranged in the feeding chamber, and the conveying assembly is arranged in the feeding pipe. The unblocking assembly comprises an unblocking frame, a connecting rod, a pull rope, a wire spool, a first driving motor and a plurality of unblocking rods; during use, PVC powder stored in the stock bin falls into the weighing chamber through the feeding pipe, is weighed through the weighing assembly, then falls into the feeding chamber and is conveyed to the next machining procedure through the conveying assembly,