Bag Making Machine with Gantry Roll Loading

MWES provided our customer with a roll handling solution by pairing the web handling machine with an overhead gantry equipped with a motorized spreader bar. Utilizing a gantry allows the system operator the easily and with minimal effort to mount two full rolls of film onto the unwinding stand. Through the web handling process, the rolls are glued, perforated, and sliced and ultimately the final product is neatly deposited into containers.

Once two rolls of film are mounted in the unwind station, the web system unwinds them, guides them together and registers the web print together. The web then passes through a nip assembly, over a load cell roll and then into a linear web stop unit and passes vertically down through a punch tooling area and then back through the linear web stop unit.

After the rotary perforation units, the web is fed into the Zinger, SVT or Hot Knife section of the module. Based on the product being made, the web path is altered to slit and seal the web into bag sections and then through the zinger roll. The web is nipped against a driven back-up roll and the zinger roll flicks open the bags.

The web then passes in front of the inspection blower box with an inspection system light curtain. The perforated and sealed bags are drawn through a pull roll with a tension loop and into the wig wag arm using a tendency-driven roll and layer-placed in the final shipping boxes.