1. EVOLUTION
AUTOMATIC WASHING SYSTEM
“CLOTH TECHNOLOGY”
Technical documentation release : Rossini_rev.0_11_2010

2. 1. FUNCTIONAL DESCIPTION
Printed
Production Anilox CIC
New
Production
New Roll
The Rossini Automatic Washing System thanks to its unique technology guarantees top level
performance, the special design of the washer creates a uniform application of the mechanical action,
while a patented distribution system of the cleaning agent prepares an even humidification of the cloth
that is in contact with the central impression drum surface.
The combined work of the cleaning agent (chemical action) evenly distributed on the cloth….
..combined with the correct & uniform mechanical action across the complete width of the drum ….
Parked Position Working Position
the fastest, more efficient and most reliable automatic washing cycle today available on the market.
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3. The flexibility of the system comes also from the availability of different washing programs and the
user friendly interface for the operators.
SOME PLUS POINTS ….
 The design of the system has been developed to work with different ink systems: solvent or
water based inks. All the Components including the finished assembly have been certified
according to the EEx standard, where the washer is located.
 Installed at 12 o’clock position on the cylinder, Rossini’s device is the only automatic system
performing the cleaning action with the material present inside the machine: no need to
remove the web from the cylinder means a clear saving in terms of time and waste of
material!
 Oscillation : do not forget that the washer has been designed to oscillate on the lateral side
when is in contact with the CI drum  high frequency oscillation per second (!) added to a
proper mechanical action and chemical action create the real plus of Rossini’s washing
device. But Why oscillate?
During the printing process the ink often creates a build up on the lateral side edges of the material;
this build up can by the end of a print run be to be up to 5 [mm] wide and up to 1[mm] thick and
AROUND the complete circumference of the CI drum!
If you want to work with a cloth system … the cloth gets full of dirt immediately in the area of the
build-up thus forcing you to move continuously the cloth itself to bring “new” clean cloth in touch
with the cylinder’s surface  Final result: meters of cloth to make one washing cycle …?
Not possible to handle this situation during the standard production (we must cut the material to
change the cloth; we use too much cloth, etc.).
Rossini’s system moves the washer back and forth with high level frequency to “break and
distribute” the thick build up of ink and only after this first phase of the cleaning cycle starts the
ratcheting action of the cloth that will keep the dirt inside the cloth.
 Clean & Dry : the special design of the washer guarantees that there will be no carry over
of cleaning agent after the washer itself  no problem also when printing very low weight
paper
THESE ARE ONLY some of the advantages of Rossini Automatic Washing System that make this
device the CORRECT & PROPER choice for an automatic washing cycle for the CI drum of Flexo
machines if you want to work with:
SHORT WASHING TIME  ALMOST HIDDEN WHEN WASHING DURING SET-UP
SAFE CONDITION FOR THE OPERATOR  NO CONTACT WITH CLEANING
AGENTS AND MACHINE COMPLETELY “PROTECTED”
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4. RELIABLE WASHING RESULTS
The cleaning agent spray, the washing cycle timing, the cloth ratcheting, the contact time and
numbers of contacts between washer and cylinder are some of the main parameters and functions that
are controlled by the system whose main components are:
- an electro-pneumatic-hydraulic unit ( EPU unit)
- a control console (touch screen type) for the operator interface
- an electronic control box (PLC and related input/output cards)
A hardwired interface with potential free contacts is prepared in order to create a communication
bridge between the Rossini system and the flexo press to guarantee the right process steps and the
required safety condition of the activity.
1.1 WASHING CYCLES
 IN PRODUCTION WASH
This washing cycle is performed with the material inside the press, typical during the set-up phase.
This washing cycle optimizes the use of consumables (cloth and cleaning agent) with a proper
cleaning result.
The washing cycle has to be selected by the operator referring to the residual dirt present on the CI
drum surface after the printing.
 OUT OF PRODUCTION WASH
It is available also a washing cycle without the material inside the machine; at the production change
(when moving from a narrow web to a wider web, especially) it is important to have a clean cylinder
in order to print. The operator starts the washing cycle ( with the machine in safety condition i.e.
closed guards and safety switches completely activated ) and in some minutes you will find the
cylinder clean and ready to go while doing some other activities ( anilox change, color check , etc.).
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5. 2. SCOPE OF SUPPLY
1(ONE) ROSSINI AUTOMATIC WASHING SYSTEM includes
1(ONE) Single washer, whose main components
are:
 Brake Side : it includes the components to stop
the cloth and to produce the required back
tension on the cloth when moving one step
ahead
 Cloth ratcheting Side : inside it has the
components to move the cloth and the
connection to the utilities ( compressed air and
hydraulic connection to the pumping station)
 Main Central Body: strong aluminum bar that
distributes the cleaning agent on the cloth by
mean of a patented channels system and also
supports the rubber pads that move against the
cylinder pressing the cloth on the cylinder’s
Brake Side
surface thus giving the required mechanical
Clean Cloth action.
 Spindles : steel shafts that bring the clean and
Safety dirt cloth
Central Lever
body The washer has been designed according to the
following points:
Cloth
 The cleaning agent must be dosed and sprayed
Ratcheting on the cloth in an even and perfect distribution
Side and in a “closed” and protected environment.
 All the residuals of the printing process and the
cleaning agents used are taken by the cloth.
There is no contact between the operators and
the chemical cleaning agents used to wash.
1(ONE) Set of Brackets:
The washer is installed inside the press thanks to
long lateral side brackets to give to the operator
the possibility to bring the washer from “cloth
change” to the working position (and vice
versa) where he can remove the spindles with
the dirt cloth and change them with a new cloth
roll without removing the complete device
Cloth Change Position from the machine !
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6. The working position is on a set of movable
plates where the washer is also connected with
Plug-in Connections to the EPU for hydraulic
and pneumatic distribution.
Working Position
The movable plates can oscillate when the
washer is in contact with the cylinder thanks to
a pneumatic system located outside the
“printing” area. High number of oscillation
means up to 10 per second!!!
Movable plates + Pneumatic system
Movable plates + Pneumatic system +
washer
Movable plates + Pneumatic system +
washer -- installed
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7. PIPING
Electro-Pneumatic
box
Electro-Pneumatica Unit (EPU)
1(ONE) EPU Unit:
pump with electro-pneumatic valves, cleaning
agent storage tank are located inside this
cabinet.
The EPU Unit is connected to:
- the washer by mean of a tube  from the
pump to the washer to distribute the cleaning
agent
- the Electro-pneumatic box  connection to
inform for low level of cleaning agent inside
the tank and to drive the electro-valves of the
pump
All plug-in connection to avoid time waste
during the installation and to minimize possible
mistakes during the connections.
1(ONE) Control console:
touch-screen type with user friendly interface to
select the washing programs and see eventual
alarms or messages from the system
To be installed on the operator working desk, the
connection cable is supplied with the console.
1(ONE) Electro-Pneumatic Box:
Installed over the bridge, it is the place where
you can find the electronic and pneumatic
(electro-valves) components to handle the
system. The set of pipes from the washer to the
box and the interface cable from the box to the
press terminal box are included in the supply.
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8. Consumables
Clean Cloth
Roll
1(ONE) Box of Pre-wound rolls:
Each box includes 15 rolls of cloth that is
wound on a PVC Core.
Spindle
3. CUSTOMER RESPONSIBILITIES
 Cleaning agent: the customer has to select the product in the authorized cleaning agent list
attached to the instruction manual. The selected product must be available for the start-up of
the system (min. 1000 liters )
 Complete set of documents related to the press like drawings (general lay-out and detailed
drawings), electrical schemes, etc.
 Positioning of the EPU according to the approved General Lay-out
 Compressed air supply: 7 [bar] constant pressure - 500 [Lt/Min] (dry and clean air).
Rossini’s EPU is designed with fast connection for plastic pipe external diameter 15 [mm]
inside diameter 12 [mm]
 Current supply: the system needs 2 different connections: 1 x 24 VDC 4 Amps - 1 x 24 VDC
6 Amps this last connection under safety circuit.
 Eventual supply and positioning of channels or trays for the cables and pipes required for the
system installation
 If the customer wants a full integration of the Rossini system with the press; eventual
software costs from the press manufacturer are not included in the present offer
 Analogue telephone connection or VPN connection for remote control and maintenance
support to the Control Box of the system
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