EWIKON HPS III, Руководство по эксплуатации

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85 HPS-III-Nadelverschluss-Heißkanalsystem_Montage_BA_V-2-0_EN
Installation of HPS III valve gate hot runner systems
1. Check reference dimensions and tolerances of the hot
half as well as of the contour plate (machined by custo-
mer) again and compare them to the values given in the
installation drawing provided by EWIKON. For required
reference dimensions also see chapter
„5.4 Checks before installation“.
2. Apply a thin coat of high performance grease (see
chapter „5.3.1 Tools and operating materials“) to the
guide elements (pos. 58). Install the contour plate (pos.
56) by carefully sliding it over the guide elements. The
valve pins must be in back position (open). If the hot half
features open cable channels for example when nozzles
for front installation are installed check the position of
the connection cables of the nozzles again to prevent
squeezing when the contour plate is installed.
3. Check if plug assignment is in accordance with the
wiring plan provided by EWIKON.
4. Complete the mould with the moving mould half
(pos. 59) and mount it on the machine.
5. Connect the supply lines for compressed air / hydraulic
fluid / cooling with the corresponding connections at the
hot half. Check all cooling circuits for free flow.
6. Connect the hot half to the hot runner controller and heat
it up in diagnosis mode. If the controller does not feature
a diagnosis function heat up each zone separately and
check if the thermocouple and power connections are
allocated correctly.
Connected power supply during installation
Risk of deadly electric shock or severe injuries due to live compo-
nents.
• The hot half and the mould have to be disconnected from the
voltage source during installation.
HAZARD!
To avoid damage to the sealing collars of the tip inserts when installing
the contour plate the guide elements should always be longer than the
longest hot runner nozzle in the mould.
NOTE!
Installation
Sharp edges and heavy components
• Cut injuries to body and extremities, mainly to the hands.
•
Crushing of fingers or hand.
Control of live components before installation
The electrical equipment of the hot runner system should be
checked, especially those areas which will no longer be accessible
after installation. Physical injuries such as an electric shock can be
prevented that way.
Please check
• if cables are kinked or squeezed.
• if cable insulations are undamaged.
Pressurised systems
During installation all hydraulic or pneumatic supply lines must be de-
pressurised.
•
Injuries caused by flying parts or "whipping" hoses.
• Injuries to eyes caused by escaping pressurised liquids
Hot surfaces
Burns to the body caused by hot surfaces.
WARNING!
Respect operating temperatures
Each hot runner system is individually designed for the material to be
processed. Therefore, the specified operating temperatures must be
observed. The temperature difference ∆T between hot runner tempe
-
rature THK (processing temperature) and mould temperature TWZ,
must be strictly adhered to.
• Non-observance may cause an escape of melt inside the mould
(∆T too low) or damage to components (∆T too large).
CAUTION!