System for braking sheets in printing machine comprises suction rollers positioned under feeder which consist of perforated suction rings held together by connector rings

摘要

The system for braking sheets in a printing machine comprises suction rollers positioned under a feeder. These consist of suction rings (10) with perforations (11) around their circumference which are held together by connector rings (13). The suction rings have annular ends (14.2, 16) which fit into sockets (14.1) in the connector and mat carry pins (14.3) which fit into bores (14.4).