B E L 1 5 0 - 1 5 1 / 1 5 0 X - 1 5 1 X S e m i - A u t o m a t i c U n i f o r m C a s e T a p e S e a l e r s
17
65-02-7
02/06/07
Trouble
Shooting
Guide
Section 1 - Corrugated Case Quality & Specifications
Corrugated case quality is a major factor in smooth running and quality sealing.
1.
Check your case dimensions
to see that the products fill the case efficiently and do not bulge, over-
fill or under-fill the case. Re-sizing of cases can often result in cost savings by using the correct box
size and material weight. Consult your corrugated supplier, for help to achieve this. A correctly filled
box will help the automatic process by supporting the case body during flap folding and the top flap
sealing.
2.
Make sure that all scores (fold lines) on your cases are well defined
to help with the automatic
folding process. Your corrugated case supplier can help with this by making sure that correct scoring
pressure is used for your case specification.
This is one of the most common causes of poor case
closing performance
3.
Corrugated case weakness
is often an area that needs quality control. The fluted construction of
corrugated board can be impaired by various factors in the corrugated box manufacturing process
.
Points to watch for:
a. that the flutes have not been crushed overall, causing the box to have a ‘soft’ and limp
feeling. This causes poor case rigidity during machining and also does not give your product
the protection it deserves.
b. selective bands of crushing, usually parallel to the box flutes that can cause failure lines down
the box and result in poor machine handling performance.
c. case storage, flat cases should be stored in dry conditions and on a flat surface. Be careful
not to stack excessive weight on to the cases as crushing can result.
4.
Check the ‘squareness’ of cases
. The glue joint where the manufacturer glues the flat case together
often can present a quality problem by being misaligned. It causes the case to be wider at one end
than the other or to be twisted from end to end. Both conditions can cause case jams and poor sealing
quality.
5.
Corner
slots in the case should be wide as possible
so cases can be automatically folded with a
minimum of interference between major and minor flaps.
6.
Overlap or gapped case flaps
can be a result of incorrect flap lengths. Fold the box by hand to see
that flaps meet neatly in the case center.
Use your corrugated case supplier’s expertise to help you achieve the correct specifications for your
automatic sealing line.
