FISCHBEIN
®
Co. MODEL PBC-6000™
OPERATOR’S MANUAL
REV. D 2005-03
31
DETERMINING THE CORRECT SETTING AND PRESSURE
BETWEEN COMPRESSION BELTS
The amount of pressure required to make a strong complete closure, varies depending upon the
characteristics of the bag. The type of adhesive on the flap and the thickness of the bag may require
more or less pressure. The PBC 6000 is
designed to make adjusting the pressure
quick and easy.
The belts wrap around the compression
take-up roller, compression roller and
drive sprocket. The teeth on the inside
of the belt mesh with the teeth on the
drive sprocket to keep the belt rotating
at a constant rate. If the belt becomes
too loose, the teeth could begin to slip
over the drive sprocket, changing the
timing of the belt. In the middle of the
belt the compression rollers push
towards the centerline between the
channels, to force the hot glue and fold
together, completing the seal. The
compression rollers come together so
that the fixed and swing channel
compression belts are in contact. The
rear roller must be set based on the gap
between the channels and then the
swing channel roller is adjusted to yield
the desired pressure.
Once the machine is “ON” and ready to
run, test bags are fed into the machine.
Carefully inspect the folded portion of
the bag top after they have been sealed.
A proper fold and seal will have a
relatively flat and even fold.
(
Illustration 8.6
) There should not be
excessive amounts of wrinkles on the
flap. When the bag has cooled and the
seal is pulled apart, the adhesive should
be bonding completely across the full
length and width of the seal. There are
two types of wrinkles that can appear to suggest an adjustment is needed. Wrinkles that are
present, but NOT pressed flat, indicate that the pressure between the belts is too small and needs to
be increased by bring the rollers closer together. The second type of wrinkle is large and pressed
flat into the flap. This flat wrinkle indicates that the pressure is too large and needs to be reduced.
Illustration 8.6
Summary of Contents for PBC-6000
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