US 11,787,185 B2
Printing press and method for cleaning at least one nozzle bar of at least one printing unit
Christian Arnold, Rimpar (DE); Joachim Keupp, Rimpar (DE); Wolfgang Reder, Veitshöchheim (DE); and Karl Schäfer, Kürnach (DE)
Assigned to KOENIG & BAUER AG, Würzburg (DE)
Appl. No. 17/795,048
Filed by KOENIG & BAUER AG, Würzburg (DE)
PCT Filed Dec. 7, 2020, PCT No. PCT/EP2020/084870
§ 371(c)(1), (2) Date Jul. 25, 2022,
PCT Pub. No. WO2021/175468, PCT Pub. Date Sep. 10, 2021.
Claims priority of application No. 10 2020 105 975.2 (DE), filed on Mar. 5, 2020.
Prior Publication US 2023/0136315 A1, May 4, 2023
Int. Cl. B41J 2/165 (2006.01)
CPC B41J 2/16535 (2013.01) [B41J 2/16508 (2013.01); B41J 2/16544 (2013.01); B41J 2/16547 (2013.01); B41J 2/16585 (2013.01); B41J 2/16588 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A printing press, the printing press comprising at least one printing unit (01) comprising at least four nozzle bars (04), each comprising at least one print head (08), at least one nozzle bar (04) of the at least four nozzle bars (04) comprising at least one print head (08) including at least one exit surface (09), the at least one printing unit (01) comprising at least two cleaning devices (18), at least two nozzle bars (04) of the at least four nozzle bars (04) being configured to make contact in each case with at least one cleaning device (18) of the at least two cleaning devices (18), at least one cleaning device (18) of the at least two cleaning devices (18) comprising at least one cleaning element (31) including at least one fluid supply opening (38) and at least two fluid removal openings (39;41), the at least one cleaning device (18) comprising at least one guide system (19), the at least one guide system (19) comprising at least one guide element (53), the at least one cleaning device (18) having at least one storage position and at least one usage position, in the at least one storage position, the at least one cleaning device (18) being arranged along a transport direction (T) of printing substrate (03) upstream or downstream from an area between the at least one nozzle bar (04) and the transport path of printing substrate (03), the transport direction (T) being determined at the position of the transport path of printing substrate (03) beneath the at least one nozzle bar (04), the at least one storage position and the at least one usage position being arranged along the at least one guide element (53), the at least one storage position and the at least one usage position being spaced apart from one another at a distance of greater than zero, characterized in that the at least two cleaning devices (18) comprise the at least one guide system (19) configured as a shared guide system (19), that the at least two cleaning devices (18) comprise the at least one guide element (53) configured as a shared guide element (53), and that the at least one guide element (53) configured as a shared guide element (53) is configured as a linear guide and/or a rail.