3.5.2 Support plate
The assembly is mounted on a rigid support plate
8
fixing the winder on the module rail in a
stable way. A cover
13
with rubber sealing protects the winder control
14
from dirt and
humidity.
3.5.3 Drive
The winder mandrel
6
is driven by a current-controlled DC motor
11
via a toothed belt
4
. To
prevent the winding from after-running the winder mandrel is braked with free dancer roller by
brake
5
. The DC motor is equipped with exchangeable brushes
12
.
3.5.4 Dancer
The dancer roller arm has two tasks. On the one hand it represents a paper web stock for rapid
supply or take-up of the paper web, on the other hand it signalizes its position to the winder con-
trol by optical sensors. With adjustable spring force, it stabilizes the tension applied to the paper
web. The cooperation of the dancer roller with the winder control and the winder motor provides
a controlled paper supply or take-up. Two different dancer roller types
1
or
2
are available for
rewinders and unwinders, respectively.
3.5.5 Winder mandrel
The winder mandrels
6
of rewinder and unwinder are also different. The mandrel of the rewinder
is designed to take up a clamping bow which provides a sure but well detachable connection of
the empty paper web with the mandrel.
The winder mandrel can be provided additionally with a clamping core for paper rolls with 3"
core diameter (76.2 mm). The clamping core is intended to correctly transmit the torque to the
paper roll.
On request, also clamping cores with other diameters are available.
3.5.6 Brake
The winder mandrel
6
is braked by a electromagnetic brake. This brake is activated by the
winder control
14
at the moment when the dancer runs free, after detection of a broken paperweb
or when the motor stands still. The breaking force and breaking time can be adjusted.
3.5.7 Winder control
The winder control
14
controls the whole winding process controlling the DC motor
11
as a
function of the dancer position which is optically measured and electrically weighted. The
winder control also controls the electromagnetic brake
5
.
5999.554-01A 16.08.2001 WM
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