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CN3600 Setup & Operation Manual Revision : 6/2020
23
3.2.3 FITTING KNIVES TO KNIFE SPINDLE
As previously mentioned, any rust or burrs on the knife, knife spindle, backing plates,
nut or washer will cause problems including significant variations in width from one slit
roll to the next.
Javelin knives have two parallel lines and the
word “top” engraved on the face of the
knife. The knife should be fitted so that the word “top” is uppermost in position and the
two parallel lines face the mandrel. Providing the knife is always ground in this position
as well as being located in this position when slitting, you will ensure axial and radial run
out of the knife is minimal. This is the primary reason for having a knife grinder mounted
on the machine.
Note:
A rust inhibitor or light oil should be regularly wiped over the knife spindle, knife
and backing plates to prevent any rust build up.
3.2.4 KNIFE LOCK
The knife spindle has a locating hole drilled in it in order to accept the spring loaded knife
lock pin. This holds knife in stationary position while removing or replacing knife spindle
nut.
CAUTION:
After fitting the knife, care should be taken to retract this pin.
As a safety precaution a proximity switch prevents knife rotating if locking pin has not been retracted.
Fig. 3.2.4
KNIFE LOCK
DOWN
Engaged
d
UP
Disengaged
Sensor for
Proximity
Switch
