Title:
PRINTING MACHINE
Document Type and Number:
Japanese Patent JP2022137658
Kind Code:
A
Abstract:
To provide a printing machine capable of surely sucking a plate even while preventing plate feeding from unnecessarily taking a longer time.SOLUTION: A plate feeding device 12 comprises: a suction part for sucking and holding a plate to be fed to a plate cylinder 6; a vacuum pump P; piping 17 for communicating a suction part and the vacuum pump P; a selector valve 18 disposed in the middle of the piping 17, capable of opening and closing the piping to switch the piping state between a communication state and a non-communication state; a pressure sensor 19 disposed between the selector valve 18 in the middle of the piping and the vacuum pump P, capable of detecting a pressure in the piping; and a control part S for driving the vacuum pump P by closing the selector valve 18 when receiving a plate feeding instruction to feed the plate to the plate cylinder 6, and for performing plate suction control to open the selector valve 18 after the pressure sensor 19 detects a first negative pressure value or less.SELECTED DRAWING: Figure 1
Inventors:
KIMURA KENTA
Application Number:
JP2021037244A
Publication Date:
September 22, 2022
Filing Date:
March 09, 2021
Export Citation:
Assignee:
RYOBI MHI GRAPHIC TECH LTD
International Classes:
B41F7/02; B41F27/12
Attorney, Agent or Firm:
Fujimoto Partners Corporation
Previous Patent: JPWO2022137657
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