Paper guide apparatus for sheet-fed offset printing press

Details Paper guide apparatus for sheet-fed offset printing press Paper guide apparatus for sheet-fed offset printing press

1997-07-22

1998-08-25

Bennett, Christopher A.

Printing

Rolling contact machines

Rotary

101409, 271197, 271204, B41F 2100

Patent

active

057973210

ABSTRACT:
A paper guide apparatus for a sheet-fed offset printing press includes a conveying unit, a gripper unit, a paper guide member, and an inspection unit. The conveying unit conveys a printed sheet delivered from a printing unit. The gripper unit is supported by the conveying unit for gripping one end of the sheet. The gripper unit has a plurality of sets of grippers and gripper pads. The paper guide unit is arranged along a sheet conveying route to guide the sheet which is being conveyed with a guide surface arranged to be substantially flush with the gripper pads. The paper guide member has a plurality of suction holes for drawing the sheet on the guide surface by suction and a plurality of grooves formed on traveling routes of the grippers. The inspection unit inspects a printed state of the sheet which is conveyed while being drawn on the guide surface of the paper guide unit by suction.

REFERENCES:
patent: 5228391 (1993-07-01), DeMoore et al.
patent: 5263415 (1993-11-01), Pollich
patent: 5497987 (1996-03-01), Henn et al.

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