Koenig & Bauer-aktiengesellschaft

Jorg Seefeld

Christian Ziegenbalg

Uwe Becker

Frank Schumann

Gunter Peter

Arndt Jentzsch

Michael Koch

Lutz Halbach

A turning device in a sheet-processing machine includes a sheet-guiding drum. The sheet-guiding drum has at least one gripper system for securing a front edge of a sheet. The sheet-guiding drum also has at least three casing segments cooperating in the circumferential direction and engaging with one another during format adjustment. A method for the format adjustment of a sheet-guiding drum is also disclosed. The object of the invention is to further improve the sheet guiding on format-adjustable sheet-guiding drums in sheet-processing machines. This is achieved in that a middle casing segment in the circumferential direction has a drive.

Sheet-processing machine comprising a turning device with a sheet-guiding drum, and method for adjusting the format of a sheet-guiding drum

A sheet-guiding drum in a sheet-processing machine, comprises a gripper system, a gripper shaft, and a gripper tube. A method for producing a gripper system is also disclosed. The sheet-guiding drum further improves the sheet transport process, in particular the turning process, in sheet-processing machines. The problem addressed by the invention is in particular the provision of a low-wear rolling-element bearing that preferably eliminates the aforementioned disadvantages and, in particular, meets all further boundary conditions. This problem is solved in that the gripper tube is assembled from tube segments.

Sheet-processing machine having a sheet-guiding drum, and method for producing a gripper system

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Radebeul, Germany

Jorg Seefeld