Quick combined container forming device

The utility model belongs to a packing machine for foods, mainly relating to the bag shaper of a liquid packaging machine. The utility model has the main purpose that the utility model changes the complex disassembling process steps of the existing chest and shoulder shaper, particularly the adjustment and the debugging after assembly, when different specifications and varieties are exchanged. The shaping base board of the utility model is formed by that two shaping base boards with different specifications are stacked to be assembled; one of the base boards can be the shaping base board which only has the shoulder of an upper end; the bottom formwork boards of the base boards with different specifications and fastening slotted holes on a left and a right shaping boards are completely fit; thus when the specification is adjusted, fastening parts can be loosed and disassembled in general; the whole process is quick and simple, providing convenience for producing units.