Tetra Pak HOYER COMET N, Manual

Page: 63 / 151

6-9
Tetra Pak
Hoyer
CN 03 F A 01
Fig. B.10
3
2
4
1
6.1.8 Topping
The topping station comprises nozzles (Pos.1,
Fig. B.10) supplied by manifolds (Pos.2-3, Fig.
B.10) and connected to the power supply by
means of flexible pipes, controlled by pneumatic
actuators (Pos.4, Fig. B.10).
The operator’s panel, interfaced with a PLC,
enables to set the start and end of the dispensing
that must occur when the shutters are idle.
To circulate the chocolate from the tank to the
sprayer and return it back to the tank when the
machine is idle, perform the operations described
in Chapter 5.
Returning the chocolate to the tank is essential
because the bypass prevents the chocolate from
stopping inside the pipe and solidifying due to
the high temperature of the pipes. This operation
can be performed by always carrying out pumping
cycles with settable ON/OFF cycle. For more
information, see Chapter 5. This cycle can also
be performed when the machine is idle. To
disable the valve that controls the pump, set
value PUMP OFF TIME to zero.
During production, the dosing volume can be
adjusted by reducing or increasing the flow rate
of the pump and by adjusting the opening time of
the spraying nozzles by means of a programmer.
To adjust the time settings, it is sufficient to
change the degree on the corresponding cam, as
explained in Chapter 5.
To enable the station in manual mode, press
buttons Topping (Page 1).
F14