Penguin bag making machine

The utility model discloses a penguin bag making machine, which relates to packaging bag manufacturing equipment and comprises a frame and a bag film feeding device arranged on one side of the frame in the length direction. The rack is further sequentially provided with a cylinder forming device, a rolling device, a punching device, a first longitudinal heat sealing device, an inward folding device, a second longitudinal heat sealing device, a transverse heat sealing device and a cutting-off device in the length direction of the rack. The cylinder forming device comprises a workbench fixedly arranged on the rack, limiting plates arranged above the workbench at intervals and fixedly arranged on the rack, and first bag sealing assemblies arranged on one sides of the limiting plates at intervals in the length direction of the workbench. The penguin bag making machine is wide in application range, high in operation convenience, capable of achieving automatic operation and capable of greatly improving the producti