Q:How can I increase my moulder
and ready to go
at the moulder’s
A:Some of the following items
may be obvious, but I will
bet there are a few that will
make a difference. I asked
Dave Rankin Moulder Services Inc. to
contribute his thoughts too. Both Dave
and I recall the “old days” when runs
on the moulder lasted many thousand
of pieces; today, short runs are the
rule. What techniques will help keep
productivity high? Here are 10 to try:
1. Always be safe!
2. Analyze why you make defective
pieces. If you make 5 percent defective pieces (or 5 percent over-run
just in case), then that means 5 percent longer run time and 5 percent
less yield (= $$$).
3. Pay attention to sharpening
techniques and knife angles. The
sharpening room is important
for rapid wood processing with
minimal defects and maximum
4. Consider material flow. Always
have wood available and ready to
go at the infeed location for the
moulder. That is, the moulder
should never be idle because there
is no wood to run. If appropriate,
use an automatic return system
for bringing wood to the operator
position. Use an automatic infeed
feeder to allow single operator to
both feed and offload at the same
5. Consider scheduling of different
profiles. Schedule similar profiles
consecutively, especially if the
backside is the same. Schedule
similar width profiles consecutively
to avoid having to change feed rollers. Schedule rough stock profiles
separate from rerun profile. Once
again, this will avoid having to
change feed rollers.
6. Pay attention to maintenance.
Follow a defined maintenance
schedule or have an outside
expert fine-tune the machine
regularly. Alignment is critical in
most cases. Use an accurate digital micrometer with 0.001 inch
accuracy (nothing less) on wood
pieces to make sure the machine
is running correctly.
7. Machine set-up. Use “axial constant” grinding and set-up. This
can reduce normal set-up time by
as much as 60 percent. Convert all
locks to “quick locks” and avoid
wrenches when possible. If your machine has counters on the spindle
adjustments use them. Always
eliminate backlash effects by always
going in the same direction. Have
the next set of prepared tooling
at the moulder ready to go. Have
all working tools and wrenches at
machine in easy reach.
8. Consider the opportunity to use
higher speed spindles.
Go to www.fdmonline.
com to see a full list of
Wood Doctor’s Rx question and answers.