B E L 2 7 0 F
U L L Y
A
U T O M A T I C
H
O T
M
E L T
G
L U E
C
A S E
S
E A L E R
20
65-07-6 3/6/2007
S
ECTION
4 - C
ASE
I
NFEED AND
I
NDEXING
– BEL 270
Feeding in of cases is an important issue in the efficient operation of automatic case closing.
In-feed conveyors should be level and horizontally aligned. The cases should remain level and not change
elevation when pushed or powered into the machine. The side belts will grip and hold the case in the same
attitude as presented into the machine in-feed. Cases not level or at an angle will cause machine jams or poor
closure quality.
Case indexing provides a gating function that ensures cases enter automatic sealing machines are separated from
each other to prevent jams. This function is particularly important when there is an accumulation or backlog of
cases on the in-feed conveyor.
The indexing gate is in the normally down [open] position allowing the first case of a series to enter the machine
directly. As a case enters and releases a limit switch, the gate raises and prevents another case from entering the
machine for the period set on the stop gate timer.
If the “squareness” of cases entering the machine is a problem, the logic can be changed to have all cases,
including the first, stop before entering the machine. Although less efficient, it provides some assistance in case
squaring when the moving case strikes the gate. Contact the factory for the procedure to change the gate logic, if
necessary.
PROBLEM CORRECTIVE
ACTION
Two cases are in machine at the
same time and cause a jam
.
•
Check that the gate has power and is working.
•
Check that the timer is set to a sufficient interval to permit proper
separation. Timer T6 located in the main control box controls the stop
gate dwell time.
The case is slow entering the
machine or does not enter at
all
.
•
Check that air is turned on and pressure and volume are correct.
•
Check timer setting (as per previous point).
•
For a normally up or closed gate, check that front of case is contacting the
switch that is ahead of index gate. Failure of the case to adequately
depress the switch will cause gate to remain up.
T
ECHNICAL
R
EFERENCE
I
NFORMATION
: Please see Publication 66-07
