公开(公告)号：US20160325953A1

公开(公告)日：2016-11-10

申请号：US15134598

申请日：2016-04-21

Applicant: HEIDELBERGER DRUCKMASCHINEN AG

Inventor： JUERGEN ROTHAUG ,  ARNO JUENGER ,  ALBERT MAUL ,  SVEN GOLL ,  THOMAS SCHMIDT ,  ALEXANDER KNABE ,  DANIEL CONZELMANN ,  WOLFGANG DOLZ ,  KAI OSKAR MUELLER ,  RAIMUND SCHROEDER

IPC: B65H5/12 ,  B65H5/06 ,  B65H5/14 ,  B65H5/22

CPC classification number: B65H5/08 ,  B41F21/10 ,  B65H2405/50

Abstract: A sheet-transporting drum includes sheet-supporting areas each being formed of a first comb segment and a second comb segment having segment teeth. At least one of the comb segments is rotatable for adaptation to a sheet format. A mechanical leading-edge gripper is provided on the first comb segment and a pneumatic trailing-edge gripper is provided on the second comb segment. A mechanical trailing-edge gripper is additionally disposed on the second comb segment and is deactivatable in particular by format adjustments. This advantageously allows either the trailing edge of a sheet to be securely held down mechanically or a full-bleed print to be applied to the sheet when the trailing edge of the sheet is held down pneumatically. A sheet-fed printing machine is also provided.

Abstract translation: 片材输送滚筒包括每个由第一梳状部分和具有分段齿的第二梳状部分形成的片材支撑区域。 梳状段中的至少一个可旋转以适应片材格式。 机械前缘夹持器设置在第一梳状部分上，并且气动后缘夹持器设置在第二梳状部分上。 机械后缘夹持器另外设置在第二梳状部分上，并且特别是通过格式调节而可停用。 这有利地允许片材的后缘机械地牢固地保持下来，或者当纸张的后缘气动地压下时，全张血印刷被施加到片材上。 还提供单张纸印刷机。