© by N&W GLOBAL VENDING S. p. A.
18
09 2010 H 83127 00
CoffEE dIsPENsINg CYCLE
Whenever you request for coffee-based selection, a cap
-
sule is released in the brewing chamber that is vertically
arranged in its standby position (see fig. 23 ).
the ratio-motor handle rotates by 180°, thus causing the
brewing chamber to swing and the upper piston to lower
(see fig. 24 ).
the lock lever is positioned in its seat, thus preventing
the piston pressure from moving the mechanism back-
wards.
as a result of the water pressure, the hydraulic piston is
lowered down until it seals onto the capsule edge and
the brewing piston will pierce the protection film.
as soon as the dispensing solenoid valve is opened,
water will reach the ground coffee through the protection
film that has been pierced.
Hydraulic pressure will push the concave bottom of the
capsule against the piercing filter.
The conical needles of the piercing filter pierce the
capsule bottom and extract coffee, while retaining the
ground coffee inside the capsule.
at the end of the dispensing cycle, the water in the cap-
sule will come out through the 3rd way of the dispens-
ing solenoid valve and the capsule bottom resume its
concave shape.
the ratio-motor continues to rotate, lifting pistons and
the lower piston ejector.
the hydraulic piston is released and replaced in its
standby position.
While the brewing chamber is moving back to its vertical
position, ejection levers push the used capsule and drop
it.
the lower piston ejector returns to the bottom dead
centre.
Fig. 23
Hydraulic piston
1-
Brewing piston
2-
Brewing chamber
3-
Lower piston
4-
Lock lever
5-
Ratio-motor handle
6-
Reference notch
7-
Piercing filter
8-
Fig. 25
Hydraulic piston
1-
Brewing piston
2-
Capsule ejection levers
3-
Ejector piston stem
4-
Fig .24
Capsule
1-
Conical needles
2-
Summary of Contents for Canto LB 3600
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