Suction machine for handling stacked paper sheets

摘要

The sheet positioner has, in the working cycle, suction head with suction cups (2) to engage the upper sheet of a stack and separate it from the stack. The head has a support for gripping suction heads (4) which engage the sheet and transfer it from the separating suction heads for feeding. The suction heads are connected via hoses (9,12,13) to a main suction pipe (8) to operate on a vacuum cycle. The separating suction heads are connected via a further suction pipe (14) with a low pressure shaft is connectable. The suction pipe has a closure valve (15), which is opened by changing the drive for a set time.