Patent ID: 6824130
Filing Date: 2004-11-30
Classification: B65H

Abstract:
In a box-finishing machine including a rotatable major repeat cylinder having a repeat length, a stack of corrugated sheets and nip rolls rotatable in opposite directions at a predetermined surface velocity for feeding corrugated sheets to the repeat cylinder; apparatus for positively feeding a single sheet from the stack of corrugated sheets to the nip rolls comprising in combination feed means engageable with a sheet to drive it to said nip rolls, and drive means for driving said feed means such that the sheet is positively fed to the nip rolls by said feed means at a velocity matched to said predetermined surface velocity of said nip rolls and wherein said drive means includes a first drive member operable at a variable velocity and a second drive member operable at a constant velocity, and wherein said feed means includes a first wheel rotatable by said drive means at a variable velocity to engage and feed a sheet from the bottom of a stack and a second wheel rotatable by said drive means at a constant velocity.