Patent ID: 6375605
Filing Date: 2002-04-23
Classification: B65H

Abstract:
Folding apparatus for producing folded products simultaneously from a plurality of different colored webs or materials to form stacks of product having sequences or color or materials therein comprising:a pair of side frames to support; means to slit webs into product width webs, to longitudinally fold the product webs, a plurality of web feed metering roll pairs, and, a plurality of cutoff units each including a knife roll and anvil roll for cutting separate streams of spaced segments and arranged to combine said separate streams of segments to form a continuous series of segments on successive repeats on the surface of a multi-repeat common carrier, wherein; said web feed roll pairs each has a surface speed slower than the surface speed of a subsequent anvil roll to slidably advance said web for transfer to a spaced repeat of said anvil roll, said anvil roll having a plurality of repeats around the circumference, means to apply vacuum to a transverse line of ports along the leading edge portion, and to apertures in other selected surfaces of each repeat, said anvil roll and knife roll coacting to cut web portions transferred to said spaced repeats into segments, wherein spaced segments from an anvil roll are synchronized for placement on a carrier repeat between segments from other of said cutoff pluralities, each surface of said carrier having vacuum ports to grip the leading edge of segments for transfer from s aid anvil roll and a transverse line of port s to form a fold line in each repeat, means to apply vacuum to leading, folding, and selected ports, means to fold segments advancing on the carrier surface, means to remove said folded segments from the carrier, means to pack and deliver stacks of the folded product.