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4 Design and Functioning
Vacuum fixing device
A vacuum fixing device mainly consists of a base
plate, a 2/2-way ball valve, a vacuum nozzle and
suction cups. When operating the 2/2-way ball valve
the vacuum nozzle generates a vacuum. By this the
suction cups of the vacuum fixing device adheres to
the mounting surface by suction.
Functional unit
Hose set, vacuum fixing device and vibrator together
form a functional unit. The vibrator is tightly bolted to
the vacuum fixing device. Vibrator and vacuum fixing
device are supplied with the necessary energy (com-
pressed air or nitrogen) through the hose set.
The hose set is normally available in two different designs:
Hose set "Standard" HG .. N and hose set "Economy Air Supply" HG .. S:
Hose set HG ... N
The vacuum fixing device (opened main valve - cus-
tomer) will always be under pressure, when the
pressure is applied.
The vibrator is switched on and off by actuation of
the manually operated 3/2-way slide valve.
Hose set HG ... S
In addition to the standard function (see hose set
"Standard" HG .. N) the hose set „Economy Air
Supply" HG .. S has an economy switch position.
With the vibrator switched off the compressed air
consumption can be reduced by approx. 30% in
comparison to the standard version by means of a
throttle. This compressed air reduction makes
sense, because the "holding function" does not re-
quire the totally available compressed air. The total-
ly available compressed air is only needed for op-
eration of the vibrator.
Hose set HG with throttle control valve
Both versions of the hose-sets (N and S) are
available with throttle control valve (DRV) and
recommended by kÉííÉêVibration.
Means of this valve, the pressure which is ap-
plied to the vibrator may be adjusted. Thus, there
is the possibility of the speed of the vibrator and
the impact frequency of the vibrator to adjust.
2/2-way ball valve
suction cups
(in this example 2x)
Connection
between hose set
and compressed
air source
3/2-way slide valve
3/2-way slide valve
12
vacuum nozzle
hose set
vibrator
VAC
vibrator
VAC
vibrator
throttle control valve
VAC
throttle
vibrator
DRV
VAC
vibrator
DRV
VAC
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