公开(公告)号：EP2271566B1

公开(公告)日：2011-10-12

申请号：EP09769735.3

申请日：2009-06-19

Applicant: KBA-NotaSys SA

Inventor： EITEL, Johann, Emil ,  SIEMER, Axel ,  SCHAEDE, Johannes, Georg

IPC: B65H29/04 ,  B41F33/00 ,  B65H29/24

CPC classification number: B41F33/0036 ,  B65H29/041 ,  B65H2406/111 ,  B65H2406/112 ,  B65H2406/13 ,  B65H2406/31 ,  B65H2406/33 ,  B65H2406/362 ,  B65H2553/42 ,  B65H2801/21

Abstract: There is described an inspection system (10) for inspecting the quality of printed sheets which are transported by a sheet conveyor system comprising at least one sheet gripper system (3a, 3b) including a plurality of spaced-apart gripper bars (32) for holding the printed sheets by a leading edge thereof. The inspection system (10) comprises an optical quality control apparatus for carrying out inspection of a first side of the printed sheets while the printed sheets are being transported by the sheet gripper system (3b). The optical quality control apparatus includes a line camera (11 ) for scanning the first side of the printed sheets at an inspection location which is situated at a location proximate to a portion of the sheet gripper system (3b) where the gripper bars (32) transporting the printed sheets undergo a change of direction of displacement while the printed sheets are still being scanned by the line camera (11 ). The inspection system (10) further comprises a suction roller (50) that is placed in front of the optical path (B) of the line camera (11 ) along the path (A) of the printed sheets being transported by the sheet gripper system (3b), which suction roller (50) contacts a second side of the printed sheets opposite to the first side which is being scanned by the line camera (11 ), the suction roller (50) being driven at a selected circumferential speed to drive successive portions of the printed sheets being inspected by the quality control apparatus at a determined and controlled speed past the line camera (11 ).