Automatic Case Sealer

This machine is designed for automatically closing the top flaps of "American" style cardboard cases using hot-melt glue, with an output ranging from 800 to 1,500 cases per hour. It features an automatic device to select cases at the machine infeed. A sensor detects case presence, enabling the lowering of the selector for the synchronised entrance of bars for case transfer. Cases are then transferred to the closing and sealing group via a bar operated by two parallel chains. The front short flap is closed by a moulded device as the case passes, while the back short flap is closed by an electro-pneumatically controlled "hammer". A photocell detects case presence to control glue distribution, ensuring precise application on the first short flap, a pause, and then distribution to the second short flap, managed by a gluing unit complete with a fusion tank, glue hose, 4-nozzle gun, and electro-valve. The long flaps are automatically closed by a double parallel electro-pneumatically controlled device. The entire unit is managed via a touch screen.