Mechanism for moving thread main of a plastic injection mould two

Yellow rack is related to the movable 50 percent mould.
When the movable 50 percent mould moves, the rack pinion generate, two gear drives and the screw generate (blue screw and violet preset nut) make blue shaft carrying the pink thread main rotate and translate.
As a result the thread main is inserted into or removed from the plastic injection portion (not revealed).
The pink gear has sliding crucial joint with the blue screw.
Thread sales opportunities of thread main and the blue screw ought to be equal.
In thought of small stroke of the movable 50 percent mould, two gear drives are utilised for raising revolutions of the blue screw.
Move information of this video clip:

Post time: 02-20-2016