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The automatic
polishing machine for crystal and glass objects, in "rotary drum"
configuration, is suited for polishing big and heavy glass objects, such
as vases, bowls and dishes, bottles and furthermore for pressed glassware,
where a lot of surface material has to be taken off.
Within the
rotary drum, the glass objects are loaded individually into container
elements of respective size, in several ties, until the overall length
is reached.
The drum is
then put into the operational tank of the polishing and set rotating.
In the automatic
process, polishing acid and rinsing water are alternately pumped in, until
the polishing process is finished and the desired glossy surface has been
obtaining.
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Within
the machine, the required liquids are delivered by pumps into the operational
tank, and back again by big return valves into their respective tanks.
Therefore,
the liquids are moved around, while the glassware itself remains within
the operational tank.
With this
machine, three different liquids are made use of.: polishing acid, process
water and rinsing water.
All of these
media are kept at the right temperature by heating coils, with an automatic
control system.
Obviously,
the polishing acid will have to be filled up again at times, and that
is accomplished by means of suitable dosage vessels, provided with the
required properties to allow safe handling. This operation could be also
automated.
The entire
polishing process runs under electronic control and can be set in such
a way that the various parameters of the processed glassware can be taken
into account in order to obtain an ideal polishing result.
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