Index
A: PL120100.100
B: PL120100.100
E: 03.93 / T. Weiß
G: 06.93 / T. Weiß
Chapter: 10
Page: 3
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A
C
B
Nozzle
The front end of the screw cylinder is a nozzle, providing a link
between the screw cylinder and the mould.
Nozzle plate
The nozzle and closing plates are equipped with centering
bores to hold the eccentric rings of the mould. This ensures
the precise and close fitting of the two halves of the mould.
Plastification
As a result of the screw rotation, the moulding material is
transported through the screw volutions to the tip of the screw;
in the course of this movement, it is heated (electical heater
bands) and plastifies (melts).
Removal from mould
After completion of the cooling process, the mould opens and
the piece is removed from the mould by means of the ejector
system.
Temperature regulating device
The mould contains temperature channels situated close to
the mould cavity. The heating/cooling medium (water or oil)
flows through these channels and is heated to the required
temperature by the temperature regulating devices (heating
or cooling devices).
Thermoelement
The thermostat receives a signal for activating and
deactivating the heating system. This signal is emitted by a
thermoelement in the screw cylinder.
Thermostat
Regulates the current conduction through the heating wires
and activates and deactivates the heating system within a
preset temperature range.
Screw
The screw consists of a core; around this core, the land of the
screw coils, screw-fashion. The moulding material is
transported through the screw duct from the input zone to the
compression area and output zone right in front of the screw
tip.
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