B E L 1 8 0 S E M I - A U T O M A T I C R A N D O M T A P E S E A L E R
15
General Taping Conditions
Problem
:
Tape Does Not Stick To Case Surface.
The tape is not bonding to the corrugated board of the flaps or ends of the case to provide a secure
seal. Look for the following conditions:
•
Under-filled Case
. Ensure that the product provides support under the top flaps so that they
are not simply pushed down or away from the tape head rather than having the tape rolled
onto the surface.
•
Overlapping flaps
. If the outside (major) flaps are allowed to overlap, the ‘step’ created
results in an uneven taping surface, causing poor tape adhesion that can release during
shipping and handling. See comments on flaps (Troubleshooting Section 1,
Corrugated Case
Quality & Specifications
)
•
Tape-head roller contact
. Ensure that the tape-head contact or wipe-down rollers are
making good contact with the case and that the roller spring tension is correct.
•
Dust or dirt
. Large amounts of dust or dirt gathering on the cases or in the air will impair
adhesive effectiveness.
•
Temperature
. Extremely hot or cold temperature may require tapes with appropriate
adhesive formulations for good initial bond and permanent sealing performance.
•
Tape adhesive
. Ensure the presence and quality of tape adhesive. We recommend the ‘hot
melt’ type of adhesive over Acrylic adhesive.
Problem
:
Tape is not cut uniformly.
The tape is not cut properly every time. In the worst situations several cases may be taped
together.
SAFETY CAUTION
–
Tape Head knife is very sharp
Ensure the following conditions
:
•
Tape head position
.
If the top tape head is set too high [in manual machine operation] the
cut-off knife will not be fully activated, resulting in poor cut off. The tape head side plates
should be within 1/16 to 1/8” of the case. Ensure also that cases ride fully down between the
conveyor belts to provide proper contact with the bottom head cut-off knife.
•
Knife extension
.
Ensure that the knife extends enough to fully contact the tape during the
cutting stroke.
•
Tape tension
.
The unroll tension should be smooth and not too tight, as a ‘snap back’
caused by stretched tape can cause a jagged cut-off and tape pieces to stick to the blade.
•
Clean knife
.
Clean the blade, and apply a little silicon or oil to avoid adhesive build up on
the sharp points.
•
Knife blade wear or damage
.
Blades must be very sharp to work well. The points are
easily damaged if contacted by any hard material. Replace the blade if it seems dull.
65-34-5 4/21/10
