FF711BC
3-3
Tetra Pak
Hoyer
Fig. 3.1
The ingredients are fed manually by the operator
into the main hopper (Pos.1, Fig.3.2). Access to
the main hopper is gained by tilting back the lid
(Pos.2, Fig.3.2). The safety grid (Pos.3, Fig.3.2)
must only be removed for maintenance work
when the machine is turned off.
The ingredients are kept continually moving by
the slow agitator located in the upper part of the
main hopper; they are then fed into the secondary
hopper by means of the screw feeder (Pos.4,
Fig.3.2) located on the bottom of the hopper.
The screw feeder is made of aseptic material and
is available in various versions according to the
type of ingredients to be fed. The speed of the
screw feeder and the slow agitator are variable
and can be regulated by the potentiometer on the
control panel. As a consequence, the flow rate
of ingredients can also be continually varied.
From the secondary hopper the ingredients are
Fig. 3.2
3.2 Operation
fed under gravity towards the inlet port of the
vane pump (Pos.5, Fig.3.2) located on the bottom
of the secondary hopper.
They are then fed into the cavity created between
two adjacent vanes as a result of the special profile
of the eccentric guide.
During rotation the ingredients come into contact
with the ice-cream through the discharge port
located on the bottom of the casing. This way
the ingredients are fed into the ice-cream flow.
The rotor is mounted on the reduction gear
output shaft and its speed of rotation can be
regulated from the potentiometer on the control
panel by means of a frequency converter
connected to the gearmotor.
The mix obtained is fed to the vertical mixer
(Pos.6, Fig.3.2), which serves to mix the ice-
cream and the ingredients and hence obtain a
uniform and well-mixed product.
1
2
3
2
4
6
1
3
5
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