Thermoforming; Opening Of The Pressure Chamber - Dreve Drufosmart Instrucciones De Trabajo

Drufosmart

7.3 Thermoforming

After the heating time has elapsed there
will be an acoustic signal; the heating
time in the display will be 0:00. The
heating will be switched off automati-
cally. Pull the heating carrier (20) with
the right hand at the handle (5) com-
pletely out of the centre of the unit.
Then push the activation lever (34)
with the left hand downwards as far
as it will go.
By pulling the heating handle (5) again
for approx. 3 seconds as far as it will go
pressurising of the piston will be carried
out automatically. This is confirmed by
an acoustic signal.
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Info
For safety reasons the pressure
chamber can only be pressurised,
if it has been moved downwards
completely manually. Always make
sure that no objects are in the con-
tact area between piston and insert
bowl while the piston is closing! In
order to protect the operating per-
sonnel securely against bruises of
the fingers, pressurising can only
be effected, if the unit is operated
with two hands at the same time
(two-hand control).
The forming pressure will be verified
continuously and regulated, if neces-
sary. The display shows the duration
since turning off the heating (cooling
time). The maximum time that can be
shown is 9:55 min. Please refer to the
enclosed information folder in order to
find out the optimum cooling times for
the used Dreve thermoforming foil.

7.4 Opening of the pressure chamber

In order to attain a complete cool down
of the thermoforming blank the valve
at the tension ring (12) is to be opened
slightly after 2/3 of the adjusted cooling
time. Through this the warm air inside
the piston will be released and replaced
by cool air due to the automatic pres-
sure regulation. After the cooling time
has elapsed pull the heating handle (5)
as far as it will go and maintain it in this
position (approx. 3 seconds) until an Swivel out the plate reception (11) at
acoustic signal can be heard. Release
the corresponding handle (10) and
the heating handle and the pressure remove tension ring and thermoformed
will be relieved automatically. result.
Then swivel the pressure chamber into
its original position by leading back the
activation lever (34).
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