Feeding device of bag feeding packaging machine

The utility model is suitable for the technical field of packaging machine feeding devices, and provides a bag feeding packaging machine feeding device which comprises a main conveying belt, the top of the main conveying belt is provided with a material channel allowing materials on the main conveying belt to pass through one by one, and the tail end of the material channel is provided with a transition guide rail enabling the materials to slide down. A material vertical assembly is arranged at the tail end of the transition guide rail; the material vertical assembly comprises two side baffles and guiding pieces arranged on the two sides of the two side baffles, two spring plates which are oppositely arranged and adjustable in bottom distance are arranged at the bottoms of the side baffles, and materials vertically pass through the bottoms of the spring plates under the action of the side baffles and the guiding pieces. The guide rail structure is arranged, it is guaranteed that messy materials on the conveyi