公开(公告)号：US3843116A

公开(公告)日：1974-10-22

申请号：US36248673

申请日：1973-05-21

Applicant: ADAMOVSKE STROJIRNY NP

Inventor： BLANSKO J

IPC: B65H29/22 ,  B65H9/14 ,  B65H29/68 ,  B65H31/36

CPC classification number: B65H9/14 ,  B65H29/686 ,  B65H2801/21

Abstract: Apparatus for positioning sheets on a pile of a delivery table after their printing in a printing press. A continuous conveyer is provided for carrying successive sheets to the pile. A frame is mounted adjacent the pile and the conveyer and at least one perforated drum is located in the frame and adapted to be connected to a source of vacuum for braking the conveyed sheets. A front layer adapted to engage the edge of the conveyed sheets to position the sheets on the pile is also mounted on the frame. The apparatus includes drive means for synchronously rotating the drum and oscillating the front layer comprising a first shaft journaled in the frame and means connecting the shaft to the conveyer for rotating the shaft jointly with it. A pin extends axially from one end of the first shaft eccentric to its longitudinal axis and a forked member which is linked to the front layer surrounds the eccentric pin. The rotation of the pin causes the forked member and the front layer to oscillate. A second shaft extends freely through the perforated brake drums and is journaled in the frame. Means connecting the first and second shafts are provided so that the second shaft will rotate conjointly with the first. The second shaft is provided with disc means which engage the periphery of the drums whereby the drums are themselves rotated with respect to the second shaft.