PRINTING PRESS NONSTOP SIDE REGISTER MECHANISM

摘要

The side register mechanism is positioned between a sheet feeder mechanism and the feed rolls of the press and includes a plurality of spaced parallel endless tapes reeved around spaced pulleys mounted on a feed board. The tapes are parallel to the longitudinal axis of the press and are driven by certain of the pulleys to convey separate sheets from the feeder to the press. There are a plurality of parallel suction device guide members positioned below the upper run of the tapes and suction heads are arranged to move reciprocally in the guides. The guides are positioned at an acute angle to the tapes and the suction devices in the guides engage the sheet adjacent the leading edge and direct the sheet laterally toward a side of the feed board as the sheet is conveyed toward the press feed rolls by the tapes. The lateral movement of the sheet moves the side edge of the sheet beneath a rotating brush member that urges the sheet side edge against a moving vertical endless side guide tape. The rotating brush member urges the sheet side edge against and maintains the sheet side edge in abutting relation with the side guide tape. The sheet is thus brought into and maintained in side register and conveyed in side register to the feed rolls. Endless driven chains with stop members move at a slightly lower linear velocity than the main conveying tape so that the front edge of the sheet is maintained in abutting relation with the stops. The suction devices are arranged in pairs and are retracted as they move rearwardly toward the feeder.