Efficiency
We have incorporated a set of technologies patented by Comexi under the FLEXOEfficiency concept which are already developed in previous machines. These technologies increase the overall efficiency and provide improved ergonomics, thus transforming it into a standard for the industry.
Printing decks
The FLEXO F2 uses 8 printing decks adapted for reverse or surface printing. Its design meets today’s demands for accessibility in order to perform maintenance and daily operations with ease, thanks to the FLEXOEfficiency concept. The grids can be effortlessly moved aside, remaining inside the machine.
Doctor Blade
The doctor blade is assembled in a closed swinging chamber mounted on linear guides. In turn, the doctor blade automatically moves horizontally thanks to the low friction pneumatic cylinders.
The entire system is perfectly designed to maintain the inking position with a minimum blade pressure against the anilox and to offer a high response capacity.
The system can be easily disassembled without having to disconnect the inking lines, greatly simplifying all cleaning and changing tasks.
Changing the blade is fast and safe thanks
to the MAGNETBlade technology patented by Comexi consisting of a toolless magnetic changing system. Changing the seals is also conducted without tools so that changes can be completed quickly on or outside the machine.
Platform
The FLEXO F2 represents excellence in ergonomics and usability. The press is equipped with an overhead platform that allows access to all elements requiring maintenance in order to simplify the replacement of parts, maintenance and cleaning in areas such as the central drum and refrigeration and drying systems, among many others.
Changing sleeves
Changing anilox and plate cylinder sleeves is just a matter of minutes. The clamps, manufactured in a single cast iron block, are opened manually, simply and quickly.
The system as a whole demonstrates an extraordinary durability. The plate cylinder shafts and anilox are held in place by conical and needle bearings specially sized to allow overhanging suspension, and they incorporate pneumatic supply which forms an
air barrier. These two elements are
essential for performing quick sleeve
changes.
Comexi also utilizes DDDrive technology for driving shafts. Absolute encoders directly coupled to the shafts control the alternating current motors, which use no mechanical transfer. These technological advancements improve registration and, in turn, the quality of printing.
Drying
The drying system is composed of two circuits that evaporate the solvent or water content of the ink by blowing hot air at high
speeds.
The first circuit is used for drying between printing groups. The screen lip can be freely withdrawn from the machine by isconnecting
the tubes from the inside, and the casing incorporates an inspection port, thus making maintenance comfortable and simple. Both
concepts are patented by Comexi.
The second circuit consists of the 5 m-long drying tunnel, equipped with carefully positioned line pipes to reduce heat loss and made up of sixteen drying screens each with a blower lip, the screens can be easily disassembled for cleaning. In addition, a specific opening in the tunnel has been designed to allow rapid threading of the
machine.
The entire drying system is located on a platform which creates comfortable access for maintenance tasks, especially when accessing the set of rolls at the end of the tunnel