Blow Applicator with Swing Cylinder
16
cab - Produkttechnik GmbH & Co KG
5.2. Pneumatic Adjustments
Control Valves
1
2
3
4
5
Fig. 5.2a Control Valves
To reach the control valves, the casing of the manifold has to be
removed. Therefore, loosen the screws at the cover, two on the left
and one on the right.
That way, four electric switchable control valves for compressed air
become accessible. For manual tuning, the valves can also be
operated by integrated keys (
1
).
The functions of the valves are as explained below.
'Zylinder' (
2
/ swing cylinder) :
Two-way valve to control the swing cylinder.
When the valve is switched off the pad is kept in the starting position.
Switching the valve on will move the pad into the labelling position.
Normally the disconnection of the valve is controlled by the signal of
the labelling position sensor. When operated manually, there is no
controlling by the labelling position sensor. The pad moves to the
bottom as far as possible and stays in that position until the key is
released.
'Stützluft' (
3
/ supporting air) :
This valve controls the switch-on of the supporting air at the blow tube.
'Blasluft' (
4
/ blow air) :
This valve controls the external blow valve and thereby the switching
on of the blow air at the pad.
'Vakuum' (
5
/ vacuum nozzle) :
This valve operates the vacuum nozzle and, consequently, controls
the vacuum on the pad for picking up the label.
