3.2 Function
The function principle of the grease injection system for the lubrica-
tion of conveyor chains is more or less the same for all systems
(† ig. 2)
.
However some models differ from others by the type of lubrication
points, the number of injection heads, etc.
GVP-S-049-1 system
The lubrication system is dedicated to the lubrication of the rollers of
a conveyor chain. It features one injection head and one pick-up
system.
The lubrication system is controlled by a control unit.
GVP function principle, ig. 2
2. Coupling
3. Drive
& injection
4. Return
initial position
1. Detection
roller
A
B
C
D
E
F
A.
The GVP unit is in its starting position.
The pick-up system and the injection system
are in their resting position on the carriage.
The proximity switch detects the roller to be
lubricated.
B.
Detection of the roller. A signal is sent to
the control unit which triggers an injection
cycle. The pickup system moves forward to
the roller to be lubricated.
C.
The pickup inger is in contact with the
roller to be lubricated.
The carriage is now moving exactly in parallel
to the roller. The injection order is sent. The
injection head moves simultaneously forward
onto the roller to be lubricated.
D.
Lubrication phase. This phase is the
contact time between the injection head and
the lubrication point (user-conigured). The
carriage keeps moving in parallel to the lubri-
cation point.
E.
The injection time has elapsed. The injec-
tion head is pulled away from the lubrication
point. The pick-up system is retracted. There
is no more contact between the GVP unit and
the chain.
F.
Return to the initial position. The injection
and pick-up systems go back to their waiting
position, as well as the carriage.
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