Bow transport device and method for bow transport

The combination of two transport cylinders with a sheet tensioning device and suction grippers addresses the issue of sheet tension and distance maintenance, improving print quality by ensuring a wrinkle-free and contact-free sheet transfer in printing presses.

DE102015225605B4Active Publication Date: 2026-05-28HEIDELBERGER DRUCKMASCHINEN AG
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Patent Information

Application Number
DE102015225605
Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
Filing Date
2015-12-17
Publication Date
2026-05-28
Estimated Expiration
2035-12-17

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Abstract

Method for transporting sheets in a printing press (1) with a printing cylinder (12) and an upstream transfer cylinder (11), wherein a sheet (3) transferred to the upstream transfer cylinder (11) at its leading edge is gripped at its trailing edge during winding onto the transfer cylinder (11) and the sheet (3) is transferred from the transfer cylinder (11) to the printing cylinder (12) in a taut and stretched, flat state, characterized in that the printing cylinder (12) has additional suction grippers (24) on its outer surface, which are successively supplied with suction air in the circumferential direction.
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Citation Information

Patent Citations

  • Cylinder of a printing press, especially impression cylinder for a rotary sheet-fed printing press

    EP0990518B1

  • Device for detecting missing sheets in a turning device of a printing press

    DE19653353A1