device and method to adjust the phase of falzwalzen in a ineinanderfaltmaschine

摘要

A folding machine includes a first folding roll (90) with a series of the gripper assemblies and a series of tucker assemblies uniformly and alternately spaced to interact with a series of gripper and tucker assemblies of an adjacent second folding roll (95). The series of alternately spaced gripper and tucker assemblies interact to grip, carry, and release a sheet material (30) in a manner so as to generate an interfolded stack (32) of sheet material. The folding machine further includes a phase adjustment assembly (20) configured to adjust the location of the fold in the sheet material, to locate the fold in a proper position on the sheet relative to the leading end of the successive sheet. The phase adjustment assembly generally includes a first helical gear (125a,125b) that moves along an axial direction, and an input device (160) configured to cause the axial movement of the first gear (125a,125b) so as to cause a change in phasing and a change in location of the fold in the sheet material. IMAGE