Injection Machine Control System Unit

It functioned to coordinate the machine sequences, to keep certain machine
parameters constant, and to optimise individual steps in the process.
All motion sequences of the machine, the correct order of these sequences, their
initiation, the signalling of positions reached (such as by limit switches), and the
reaction at predetermined times within a cycle have to be achieved, initiated, and
coordinated.
Specific values that must be controlled, by either open loop or closed-loop
control, are: -

a. Barrel temperature
b. Melt temperature
c. Temperature of hot runner systems
d. Screw rotation
e. Injection speed and
f. Holding pressure
The various parameters to be controlled by the control unit



Parameter  of an injection moulding machine to be controlled