FISCHBEIN PBC-6000, Руководство оператора

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FISCHBEIN
®
Co. MODEL PBC-6000™
OPERATOR’S MANUAL
REV. D 2005-03 59
gentle cleaning solution may be needed to remove the tacky film that remains. Check
with your bag provider for a cleaning product recommendation.
E.
This diagram indicates excessive cresting at the leading and trailing edges of the bag flap.
Although some cresting can be expected, too much will compromise the integrity of the seal.
Here are some possible reasons for the excessive cresting:
1. The pressure between the creaser blade and die is too great. As bags enter the creaser
area, the creaser blade and die quickly compress a folding (crease) line below the glue
region. The blade assembly is free to move towards and away from the die to
compensate for varying thicknesses in bags, but still provides enough pressure to
make an effective crease. If the pressure is too great, the bag will initially stall while
entering the creaser area and cause the cresting effect at the leading and trailing
edges. Adjust the pressure of the creaser blade. (
Section 8.5.6, page 42
)
2. The creaser assembly is not properly aligned with the folder. The crease line should
be entering just below the underside of the folder, near its leading end. Follow the
instructions in
Section 8.5.6, page 42
to properly align the creaser assembly with the
folder.
3. The bag top may be catching on an internal component as it passes through. Remove
the front shrouding and inspect a bag as it passes through the machine. Check to see
if any part of the bag is catching on machine components that would momentarily
delay the top of the bag. Make adjustments to the component(s) as needed.
4. The gap setting between the bottom folder guide and the folder is too close. Once the
flap has been folded about 90
o
and heated, the rest of the folder gradually folds the
flap over onto the bag surface for bonding. If the gap between the upper and lower
folders are too close (especially near the exiting portion of the assembly), the leading
edge of the flap will attach to the bag too far back from the leading edge of the bag.
The gradual folding effect near the end of the folders is designed to allow the flap to
straighten out a little before making contact with the bag surface. Check the gap
setting and adjust as needed. The standard setting for most bag types is about ¼ to
3/8 inch (6,4 to 9,5mm) (
Section 8.7, page 49
) May also cause effect
F.
5. The creaser blade and die must be directly across from each other. The path that the
bag travels while passing between the blade and die must run parallel with the
centerline between the carry through belts. If the die or blade is further to the right or
left than the other, the bag will be directed towards the front or rear of the machine
instead of straight into the folder assembly. (
Section 8.5.6, page 42
)
6. The die is not properly aligned with the carry through belts. If the die is too far
forward or backward from the carry through belts, then the bag top is deflected away
from the folder assembly. Follow the instructions for setting the creaser die. (
Section
8.5.6, page 42
)
F.
The bag is being torn or is catching on components as it passes through the machine.
Remove the swing channel shrouding and inspect a couple of bags passing through the
system. Try to isolate the component where the bag is being stalled or jammed. Make
adjustments to the component.