METHOD AND APPARATUS FOR FEEDING INK IN PRINTING MACHINE

摘要

PROBLEM TO BE SOLVED: To provide a method and an apparatus for feeding ink in a printing machine wherein the ink can be automatically fed by makine flow rate of the ink accurately and steplessly without using an independent pump corresponding to a machine plate and without requiring great skill and a pressure reducing valve and a return line are made unnecessary thereby and generation of shrink of the ink can be minimized and the ink can be directly fed without using the return line and manufacturing cost and running cost of a printing installation can be remarkably decreased thereby. SOLUTION: A flow rate metering valve 12 for measuring flow rate of the ink while shrink of the ink is prevent from being generated, a flow rate controlling valve 14 for controlling the flow rate by changing length of a flow path for the ink and a flow rate controlling tool 16 for controlling the flow rate controlling valve by feeding back the flow rate measured by means of the flow rate metering valve, are provided.