This document discusses injection moulding machines. It explains that injection moulding machines consist of an injection unit and clamping unit. It describes the injection moulding process in four steps: clamping, injection, cooling, and demoulding/ejection. The document also includes sections on planning, risk assessment, budgeting, and references.

1. Injection Moulding Machine
Parshwa Kikani
Chaitanya Matapathi

2. Abstract
 Injection moulded components are consistently designed to
minimize the design and manufacturing information content of
the enterprise system. First, closed loop pressure control has
enabled tight coupling between the mass and momentum
equations. This tight coupling allows the direct input and
controllability of the melt pressure. Second, the use of multiple
melt actuators provides for the decoupling of melt pressures
between different locations in the mould cavity. Such
decoupling can then be used to maintain functional
independence of multiple qualities attributes. Third, the heat
equation has been decoupled from the mass and momentum
equations. This allows the mould to be filled under isothermal
conditions. Once the cavities are completely full and attain
the desired packing pressure, then the cooling is allowed to
progress.

3. Introduction
What is Injection Moulding Machine ?
An Injection moulding machine, also
known as an injection press, is a
machine for manufacturing plastic
products by the injection moulding
process. It consists of two main parts,
an injection unit and a clamping unit.

5. How it Works ?

6. Clamping
 The moving and
fixed platens of
the injection
moulding
machine holds
the mould tool
together under
pressure.

7. Injection
 The molten plastic
that has been
melted from
pellet form in the
barrel of the
moulding
machine is
injected under
pressure into the
mould.

8. Cooling
 The plastic
parts are then
allowed to
solidify in the
mould.

9. 4. Demould/Ejection
 In stage 4 of the Plastic Injection
Moulding Process as the screw begins
moving back for the next moulding
the tool is opened. The opening of
the tool and the use of e.g. air blast,
a plate or rods, mean that the
finished plastic moulding is ejected.
The mould is then closed and the
whole cycle begins again for the next
moulding.

10. In Principle, Injection
Moulding is SIMPLE !

11. Planning

12. Network diagram
Critical path : A-B-D-E-F-H-I-J-K

13. WBS diagram

14. Risk Assessment Form
Risk Event Likelihood Impact Detection
Difficulty
When
Cost
estimation
7 7 6 Estimating
manufacturing
costs
Error in
Mould
5 8 4 Mould from
vendor
Breakdown
of machine
5 3-7 2 Manufacturing
Process
All Scales Range from 1-10

15. Risk Management
Auditing
 Auditing of a company to maintain shareholders
 Required if loans are sanctioned from banks
 Best if done from the Big Four Companies

16. Budget Form
Process Cost (in dollars)
Raw Material Quotation
Cost Est. for Mould
Final Quotation 1000
Finalization of Order from
Cust.
Mould Manufacturing 5000
Inventory of Raw Material 1000
Inspection of Inventory 500
Manufacturing Process 50,000
Quality Check 1000
Packaging 500
Delivery 2,000

17. Cost/Schedule Graph

18. References
 http://
www.economist.com/news/economic-and-financial-indicato
 https://www.google.co.in/search?
q=plastic+injection+moulding+machine+stage+1&biw
=1366&bih=657&source=lnms&tbm=isch&sa=X&ved=0
ahUKEwjPtK_G2aHQAhUn74MKHRpgBwoQ_AUIBygC#t
bm=isch&q=plastic+injection+moulding+machine+ste
p+process&imgrc=_
 http://www.stephensinjectionmoulding.co.uk/injection
-moulding-revision/
 http://www.haiflymachinery.com/html_news/Injection-
molding-machine-types-120.html