Scenario $1$: Plastic Injection Molded Machine

A Process Engineer would like you to design$/$configure a new plastic injection molding

machine. The machine has three components to perform the steps of injection$-$molding

process: the injection unit, the clamp unit, and ejector pins.

$$ Pushing a Button starts the process.

$$ Plastic material is supplied to the machine$$s hopper in granular or pellet form. The

plastic is heated $($minimum $40$ seconds$)$ until it melts.

$$ The mold closes the plastic is injected into the mold.

$$ The injection pressure is held for a period of time until the plastic part is solidified

in the mold. After $5$ seconds the plastic injection stops and mold is allowed to cool

for a period of $10$ seconds.

$$ The pressure is then released, the mold opens, and newly formed plastic parts are

ejected by the ejector pins of the machine and the cycle restarts.

$$ After $5$ Parts have been molded a notification is sent to the operator

$$ After $10$ parts have been molded the system stops and the hopper will have to be

filled with pellets.

$$ After the hopper has been refilled the system should start again.

$$ When out of pellets the operator cannot start the machine again until he$/$she refills

and resets the machine.

$$ Pushing another button at any time will cause the machine to stop.

$$ The count however will be maintained so that the machine will complete the

remaining cycles if the start button is pressed again