Supporting mechanism of packaging bag opening

The utility model aims to provide a supporting mechanism of a packaging bag opening, which can keep the packaging bag opening in a vertical state, two clamping plates are arranged on a rack below a material receiving opening, a belt-shaped restraining area is formed between the two clamping plates, and the packaging bag opening is arranged in the belt-shaped restraining area. The strip-shaped restraining area extends towards the downstream and is connected to the bag receiving end of the clamping and conveying mechanism, blowing nozzles are arranged on the two clamping plates in the length direction of the two clamping plates, the blowing directions of the blowing nozzles are arranged upwards, and the blowing nozzles blow the packaging bag openings above the two clamping plates so that thepackaging bag openings can be kept in a vertical state. According to the scheme, the packaging bag body is clamped between the two clamping plates, and the air blowing nozzle blows air towards the bag opening above the clamp