Flattening device for packaging bag recycling

The utility model relates to the technical field of flattening mechanisms, in particular to a flattening device for packaging bag recycling, which comprises a flattening mechanism and a conveying mechanism, the flattening mechanism comprises a mounting frame, a first telescopic piece and a pressing plate, the first telescopic piece is connected with the mounting frame, and the movable end of the first telescopic piece is connected with the pressing plate; the conveying mechanism comprises a base and a plurality of rolling parts, the rolling parts are arranged on the two opposite sides of the base at intervals and used for driving the base to be in contact with the ground or separated from the ground, and when the base is separated from the ground, the rolling parts can convert sliding force between the base and the horizontal ground into rolling force. A containing space with an opening in the top is formed in the base, and when the base moves into the mounting frame, the first telescopic piece can drive the