Conveying and opening mechanism for folded sheets - has two rollers equipped with grippers for arresting front sheet for opening

摘要

The mechanism has a pair of rollers (3, 15). The folded sheets are delivered to the first roller (3) by a conveyor, on which the sheets are stacked in an overlapping manner. A pair of grippers (6, 8) on one roller (3), together with a suction nozzle (23), separate the edges of the leading folded sheet (5). As the rollers rotate the upper layer of the folded sheet is gripped by a guide hook (18) of the secbnd roller (15) so that the halves of the folded sheet (19) are spread out and the sheet can be laid on a collector chain (20). A second sheet can then be laid on the first one etc. ADVANTAGE - Low-cost opening and collecting mechanism.