3
flat on the table. Twist the core until it locks on the
coreholder.
In actual operation the cores will usually lock
themselves once the rewind starts to turn.
However, locking them by hand is preferred be-
cause the web can be drawn tight before starting
the machine, thus reducing the chance of web
breakage. Since the cams will lock regardless of
which way they are turned, it is important that they
be turned the right way or they will again loosen
once web tension is developed. There are two basic
rules for determining which way to rotate the cams
to lock the cores:
(1) On the unwind, the cam should be rotated in
the direction the roll will be turning (usually
counter-clockwise).
(2) On the rewind, the cam should be turned oppo-
site to the direction of rotation (usually clock-
wise).
Until you become familiar with this operation, it
may be desirable to mark the top of the coreholder
with an arrow to indicate the lock and unlock
directions.
When a full roll is wound it can be difficult to
determine which direction it should be rotated to
release it from the coreholder. The two rules to
remember to loosen a core are:
(1) On the rewind, turn the core in the direction in
which the roll was wound (normally counter-
clockwise).
(2) On the unwind, turn the core in a direction
opposite to the direction in which the roll was
turning (normally clockwise)
NOTE
An alternate method of loosening the roll on the rewind
is to hold the roll tight against the top of the table and
turn the coreholder in the direction opposite to the way
it was running.
AIR INFLATABLE COREHOLDERS
(OPTIONAL)
Air inflatable coreholders offer the advantage of ex-
panding concentrically over their full length simply by
flipping a switch. Machines which are equipped with a
slitting attachment require this type of coreholder sys-
tem on the rewind. That is so that ganged cores (one for
each slit web) can be individually gripped and driven.
Machines that have been equipped with air inflatable
coreholders require connection to a supply of air pres-
sure. A quick disconnect fitting has been provided for
this purpose (located on the back of the machine just to
the rear of the main drive motor). A mating female dis-
connect is supplied as a convenience in hooking up air.
The machine should be connected to an air source ca-
pable of supplying at least 50 psi. Individual regulators
on the machine allow the operator to adjust the pres-
sure between zero and 50 psi. Very narrow cores re-
quire only a small amount of pressure as excessive pres-
sure may burst the core. The coreholders can then be
inflated and deflated by means of toggle switches lo-
cated next to the pressure regulators.
CHANGING FROM 3-INCH TO 1-INCH AIR INFLATABLE
COREHOLDERS
A) Make sure that the coreholder is deflated.
B) Grasp the coreholder with one hand while loosen-
ing the socket head bolt in the center of the top of
the coreholder.
C) Lift the coreholder from the reroll table.
D) Loosen the four screws and remove the three-inch
coreholder adapter from the rewind spindle.
E) To insure that the adapter and retaining screws are
not lost, assemble the adapter onto the three-inch
coreholder.
F) Insert the one-inch coreholder into the hole in the
rewind spindle and align the mounting holes with
the holes in the flange.
G) Place the one-inch coreholder retaining ring on top
of the coreholder flange and install the four retain-
ing screws.
H) Check the operation of the coreholder by inflating
and deflating.
REWINDING
Learning to use the rewind machine should be accom-
plished in steps. Each step will build upon the previous
step. This will be more efficient than trying to learn how
to do everything at once. The first step will be learning
to thread the machine and operate the motor control to
wind rolls. Once you understand how to do that, you
can move on to setting up the counting system to
measure roll length.
A) Set the COUNT/STAND-BY switch to the “STAND-
BY”. This will make it possible to operate the
machine regardless of how the counter system is
set up.
