公开(公告)号：US11007771B2

公开(公告)日：2021-05-18

申请号：US16085426

申请日：2017-01-22

Applicant: LONGWOOD INFORMATION TECHNOLOGY LIMITED

Inventor： Jianlong Xiang ,  Bo Gao

IPC: B41F33/00 ,  G01J3/52 ,  B41F31/02 ,  B41M5/00 ,  G01J3/46 ,  G01J3/51

Abstract: The present invention discloses an accurate digital ink supply method for a printing press. The present invention adopts metering-type ink delivery units to replace the ink keys of the traditional printing press, and the metering-type ink delivery units directly deliver the ink to the corresponding ink zones on the metering basis of either volume or mass, realizing the quantitative supply of ink to each one of the ink zones. The present invention can perform accurate adjustment in real time, is high in automation and digitalization degree and large in adjustable range, realizes one-way ink delivery and avoids ink return.