Page 84 - Glass-Technology International no. 4-2019

Easy maintenance thanks to
particular mechanical solutions

be set accordingly module from the bottom, which re-
by module. quires a lamp or mirrors on
Since we are talking about the bottom of the conveying
a tunnel, the glass needs to system. A belt would mask
be driven through the dryer and interfere with the radia- AIR RECIRCULATION SYSTEM
with a conveying system. tion, while a roller system
grants the proper space bed may lead to undesired steel free rollers instead of
BELT SYSTEMS ON without interference. wearing of the belt and may bars. With this simple kit,
CUGHER IR DRYERS Last but not least, in the also result in issues on the glass up to 19 millimetres
The conveying system can case of broken glass, tracking of the belt. Cugh- thick can be cured in the
be a fibre-glass PTFE coat- since we are mainly talk- er dryers are designed to dryer running smoothly on
ed belt with a width slightly ing about non tempered or be installed with stainless- the belt.
wider than the maximum laminated glass, with the
glass size, or it can be a roller system the pieces are
roller conveyor (donuts or small enough to fall in be- IR DRYERS FEATURES
full roller), where the roll- tween the rollers, while in
ers need to be in steel cov- case of belts the pieces will In a decade of installations, Cugher has improved its IR dryers
ered with some sort of pro- be transported on the mesh with a number of interesting features:
tection, typically fibre-glass out of the dryer. • Internal parts of the dryer in stainless steel;
or ceramic material. Cugher IR dryers are there- • Hot swappable recirculation fans;
From the mechanical point fore equipped with a belt • Rotation feedback of the fans;
• Adjustable speed of the fans;
of view, the belt system is system, which runs on a • Heating and cooling sections of the dryer with independent belts;
preferred due to the fact stainless-steel bars bed. • Tracking of the belts with optical sensors and mechanical over-run;
that the motor and track- This system originally used • Rotation feedback to check if the belt is broken or not running;
ing are totally outside the a grid, but with some inks • Shell opening of the hoods on the operator side, with LOTO
hot chamber, facilitating the longitudinal supports ready lockable device;
the work of maintenance reflected the radiation and • Recipe system;
personnel. Operations such overheated the glass, which • Temperature trend recording;
as greasing and tuning are were visible after temper- • Possibility to bypass one single module in the case of failure,
carried out in safety outside ing or bending processes. enabling to continue production, even though at lower rate;
the IR tunnel – even if the For this reason, Cugher re- • Energy saving mode;
dryer is hot – while the belt moved the longitudinal sup- • Bypass mode.
In addition, on request it is possible to integrate the following:
can be cleaned when the ports many years ago, and • Heating elements in parallel to the IR lamps;
dryer is at set-point simply nowadays the belt runs on • Shell opening at the back for easier maintenance, with LOTO
brushing the belt while run- transversal bars only. ready lockable device;
ning with brushes and rags. • Pyrometer kit out of the hot section;
On the contrary, in the case Stainless steel rollers • Pyrometer kit out of the cold section;
of UV dryers, a roller system If the glass is thicker than • Kit for small glasses;
is preferred because modern 8 millimetres, the friction • Remote assistance device.
inks require radiation also of the belt on the bars’
Cugher Glass Srl
Cugher Glass S
INTERIOR DESIGN PRINTED GLASS

Via G. di Vittorio, 70
20026 Novate Milanese (MI) - Italy
Tel.: +39 - 02 - 66207762
Fax: +39 - 02 - 66202917
E-mail: info@cugher.com
www.cugher.com