The invention relates to an automatic ink
adding machine for a
printing ink box and an ink adding method thereof. The automatic ink
adding machine comprises a pipeline, a vacuum
distributor, a vacuum valve, an ink measuring
pipe, a residue pump can, a residual liquid can, a
vacuum pump or compressor which are arranged in a casing, a vacuum watch, a residual ink pump connector, an ink injection connector, an ink box fixture which are arranged at the outside of the casing, an air-gas separator, an ink measuring pump, a display screen, a keyboard, a
control unit and an
electromagnetic valve including a negative ink injection valve, a first
positive pressure valve, a second
positive pressure valve and a residual ink pump valve. The automatic ink adding method comprises the following steps: 1. clamping the empty ink box to the fixture; 2. starting the
vacuum pump; 3. opening the corresponding
electromagnetic valve, and vacuumizing the ink measuring
pipe and the ink box; 4. setting the ink application value; 5. opening the ink measuring ink
pipe of the corresponding position and pumping the ink to the corresponding ink measuring pipe; 6. determining negative pressure ink adding or
positive pressure ink adding and injecting the ink into the empty ink box. The
machine and the method of the invention have the advantages of convenient clamping and high ink adding efficiency, thus facilitating the management of a plurality of ink adding chain stores, improving the ink adding speed of a soft ink bin and ensuring that the ink box with
crazing can be reused.