3.9 Arrangement and mechanical adjustment of the unwinder
The unwinder is placed, as shown in figure 8, on the top of the module rail.
Legend
1.
Module rail
2.
Traction unit
3.
Unwinder
4.
Dancer
5.
Direction of rotation
toggle switch
6.
Deflection rollers
7.
Paper web
Figure 8
The unwinder is fastened above the module rail
1
. The dancer roller
4
pulls the paper web
upwards. If the dancer is moved downwards the motor starts to rotate. The direction of rotation
of the unwinder is set by the toggle switch
5
. The resetting force of the dancer should be set as
low as possible. But in operation the dancer roller must never touch the lower stop avoiding thus
impacts to the label web and an inaccurate labelling.
NOTE:
In the case of horizontal mounting position and lateral labelling special
paper web guides are available which prevent that the paper web can
slip down.
3.10 Maintenance
The winder does not need maintenance to a large extent. Remove dirt with a cleaning agent free
of solvents. No cleaning agent or humidity must penetrate into the winder. Otherwise there is the
danger of damages to electrical components or bearings.
The brake of the winder mandrel and the motor brushes are liable to wear depending of use.
They must be exchanged or readjusted depending of use and wear.
1
2
3
4
5
7
6
5999.554-01A 16.08.2001 WM
Page 15 / 26