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Front view of the machine
TECHNICAL DESCRIPTION
It is a very simple machine which works a new technology managed by microprocessors which allows to print with only one plate cylinder all the printing repeats needed, without having a large and expensive stock of plate cylinders.
The printing unit can be installed in line with extruder, in line with bag machine or bag maker and can also be a reel to reel press.
The computer installed at machine side has a simplified software which allows, by inserting only two coordinates which are the printing length and the plate length to change the printing repeat which means that it is possible to give the customers all the printing repeats which are needed with the big advantage that small lot will not be anymore very expensive due to machine stops and plate cylinders purchasing.
The theoretical time for job change, included also the color change, is reduced to ten/fifteen minutes to be able to start again with a new job. Furthermore, if the machine is a four colors press and the user needs to print only two colors it is possible to do it without stopping the extruder.
Even if this could appear a standard performance, the real innovation is that the beginning of the print is automatic for each group. This means that with maximum one complete turn of the printing roll, all the groups settle on the "print center" which is the printing beginning, of course with the possibility to go ahead or back simply by using the switcher plus or minus.
The plate roll with cantilever to change the sleeves is very easy to use.
View of the extracted sleeve.
Lower down, the remote control joypad.
Behind the sleeve, the main console.
The ceramic anilox roll has a number of lines depending upon customer requests. The doctor blade is installed in such a way to avoid any color loss and guarantee the filling up eliminating the air which is formed during the printing.
The printing unit can easily be disassembled to allow the cleaning for the color change.
The counterimpression roll is very big and is made with chromed steel and it is lapped.
Motor reducers with high precision ball screws and electronic position reader drive all the movements.
The machine can be driven by the computer positioned on the main desk and from the joypad (a small keyboard connected to the machine through an electric wire).
MACHINE EQUIPMENTS
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Printing systems which allows to change the printing length.
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Printing system with double plate to print covers with double printing length.
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Continuous printing system gearless type.
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Joypad keyboard for the micrometric or rapid regulations and for printing register. It manages also automatic and simultaneous throw on-and-off.
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It is possible to preset the machine for the desired printing dimensions.
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Plate cylinders with sleeves.
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Hot air drying system, which can be centralized or single performed by electric resistor, gas burner or
UV.
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The machine is equipped with a computer which controls eventual failures in the system and shows them in a monitor.
ELECTRIC
EQUIPMENT
The electric and electronic system is installed in a box at machine side. The electric equipment includes wire, box, guards, electronic cards etc.
It includes also the computer, the PLC and the inverter.
Automation:
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Processing of speed references
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Processing of optimal speed depending from the preset repeat and plate dimension
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Processing of acceleration and deceleration depending from the job and the speed
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Possibility for the operator to preset all the system settings.
Technical Data:
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Electric equipment three phases 380/50 Hz
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Auxiliary circuits tension 110 V
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Earthing value close to zero
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Electric operator manual
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Instructions manual to operate following CE safety rules
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Electric schemes
CHARACTERISTICS
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NUMBER OF PRINTING STATION: from 1 up to 10
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PRINTING WIDTH: upon customer request
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Maximum printing repeat: upon customer request
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Maximum dimension of the plate: upon customer request
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Nominal printing repeat: upon customer request
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Web passage: upon customer request
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Printing speed: up to 200 m/min. depending on printing repeat (see speed/printing repeat chart)
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PRINTING LENGHT: all the printing repeats can be digitally settled by the consolle.
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Printing unit alignment: performed through an electrical input with two speeds ball crews (rapid or micrometrical preset)
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SLEEVE CHANGE: with cantilever and plate roll opening from head side with pneumatic block
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WEB SPEED CONTROL: upon customer request
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