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GM · CONVERTING UNIT
46
NOTE!
The blade may not be set too hard as both doctor blade and anilox roller will be
exposed to unnecessary wear and tear.
NOTE!
The blade may only be ON when there is ink on the roller. Ink reduces friction.
Impurities in the ink or dried ink residues can damage the doctor blade, giving lines in the
image and at worst scratches in the anilox roller.
NOTE!
If the doctor blade is damaged wiping will be uneven.
NOTE!
A scratch may damage an anilox roller.
A defect doctor blade can be replaced by releasing the five screws on the blade holder.
The blade is pulled out. A new one is inserted and clamped, parallel with the blade
holder, so that the bevelling faces outwards.
Adjust the side wipers as close to the anilox as possible. If there is a gap between the wiper and the
anilox, dripping will become a problem.
18.6.
Filling of ink
Fill in sufficient ink for the ink roller to be inked up during rotation. It is possible to connect an ink-pump
for automatic filling of the ink tray. If ink-pump is connected, use an overflow pipe in the ink tray drain
hole in order to drain excess ink/varnish.
NOTE!
When UV varnish is used cover the station with a blanket when stopping the
daily production. This will prevent light access to the ink tray and unintentionally ink dry
up.
NOTE!
When using water based inks the entire station must be cleaned after production.
18.7.
Mounting of print cylinder
The plate is mounted on the aluminium plate cylinder with the proper tape (see flexo plate
documentation). Make sure that the plate cylinder gear wheel has the correct size (the gear increment is 8
teeth per inch).
After plate mounting slide the plate cylinder into the flexo unit. Lower the plate cylinder until the gear
wheels are in mesh. On start the automatic print throw-off/on will lower the plate roller further.