B - Operations – Transporting – 65 – H
Patent
B - Operations, Transporting
65
H
341/99
B65H 7/20 (2006.01) B41F 21/00 (2006.01) B65H 7/08 (2006.01)
Patent
CA 2032037
In order to ensure that a sheet is accepted in register by the grippers of the register feed drum (7) and that it is transported in register into the printing press (1), it must arrive at a preselected number of degrees at the front stops (8) of the feed table (6). The optimum number of degrees at sheet arrival, however, is not constant, but changes, for example, as a function of the press speed. The device according to the invention for the feedback control of sheet feeding in sheet-processing machines is able to improve the feeding of the sheets in such a manner that, throughout the entire printing process, the sheet arrives at the optimum number of degrees at the front stops (8) of the feed table (6).
Hauck Dieter
Schramek Edmund
Heidelberger Druckmaschinen Aktiengesellschaft
Johnson Douglas S. Q.c.
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