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The
group of injection moulding machines range
from 550 to 2000 mp of clamping force with
an injection capacity of 1600 gm. (ps) to
16705 gm.(ps).
Each machine incorporates a multi-fuction
microprocessor-based controller, which gives
a high degree of precision, and veratility
that could not be achieved by a conventional
control system.
The total cost of plant and machinery works
out to Rs 656 lakhs.
The company has not entered into any technical
collaboration.
The technical process for the manufacture
of these plastic items is a conventional injection
moulding process.
The process is as under: |
| 1.
On testing of quality of raw material
(viz. Abs, pp, hd and other nylon based
materials), it is fed into the hopper
mounted on the screw end of the machine
in required quantity. |
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2.
These mixtures fall through an opening
in the hopper base into the barrel chamber,
a heating zone which consists of band
heater mounted over a barrel body and
a rotating screw inside and gets melted. |
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| 3.
The rotating action of the screw inside
mixes the material thoroughly and pushes
it forward towards the end of the barrel. |
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4.
This molted material is then injected
into a closed mould by the forward action
of the screw under pressure where it
takes shape of the mould / die. |
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| 5.
The mould is kept closed for cooling
of the product for a specified period
through the action of circulating water
in the mould water channels. |
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6.
After the cooling the mould opens up
and the operator then ejects the article. |
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| 7.
The ejected article is then sent for
post-moulding operations like slashing,
finishing etc. And then forwarded to
the packing department. |
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8.
Ensuring proper temperature and moisture
conditions control quality in the process. |
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