Pillow type plate automatic packaging machine folding device

The utility model discloses a foldable device for a pillow type automatic packing machine, which is characterized in that the knife frame is provided with a positioning shaft, a moving shaft and a gear shaft, and a connecting rod is arranged between the positioning shaft and the moving shaft. A swinging rod is arranged between the moving shaft and the gear shaft, one end of the swinging rod is fixed on the moving shaft through a locking clip, a sheave is provided on the gear shaft, and the other end of the swinging rod passes the pulley. The utility model is arranged in a special-shaped sliding groove of a sheave, a moving block is mounted on the moving shaft, a hemming leaf is mounted on the moving block, a gear on the gear shaft meshes with a gear on a turntable, and the rotating disk and the motor Rotate the shaft connection. Because the utility model is provided with a sheave and a pulley structure on the machine, the sheave and the special-shaped slide groove of the sheave are matched so that the packaged object passes through the hemming, thereby solving the problem that the width of the package bag after the flattening of both ends is not neat. It will also affect the appearance, but also make the item repackaging and increase the packing volume.