Folded paper sheet e.g. letter, opening device, has suction unit with compressed air supply and mechanical conversion unit for redirection of compressed air and generation of dynamic low pressure acting on surface of sheet

摘要

The device (20) has upper and lower sheet parts that are adhered together at a folding line for application of glue on the opened paper sheet using a glueing device. The device (20) opens the sheet using a low pressure produced in a suction unit. The unit has a compressed air supply (21) and a mechanical conversion unit for redirection of compressed air and generation of dynamic low pressure acting on a surface of the sheet.