Packaging bag opening and charging mechanism

The invention belongs to the technical field of packaging, and particularly relates to a packaging bag opening supporting and charging mechanism which solves the technical problems in the background technology and comprises an opening supporting mechanism and a feeding mechanism. The opening expanding mechanism comprises an opening expanding main mounting plate, a lower opening expanding platform, an opening expanding pressing strip, a heating sealing pressing strip, a left opening expanding clamping hand, a right opening expanding clamping hand and an opening expanding bottom plate. The feeding mechanism comprises a linear module, clamping fingers and a vacuum suction nozzle, wherein the linear module moves in the front-back direction. After the opening-opening charging mechanism is used, in the opening-opening charging process of the packaging bag, manual operation is not needed, the labor cost is reduced, the problem that the packaging bag is difficult to open due to static electricity is solved, pollution