Patent ID: 8449286

Claim:
An injection molding machine comprising a moving platen, the moving platen comprising: a fixed support defining an opening in one surface thereof and comprising a first adjustment motor, a second adjustment motor, a first adjustment shaft, and a second adjustment shaft, the first and second adjustment motors opposite to each other, the first adjustment motor connected to the first adjustment shaft, the second adjustment motor connected to the second adjustment shaft; and an ejector assembly comprising two guide shells, two drive shafts, two ejector pins, and two guide protrusions, each guide shell positioned in the fixed support and receiving a corresponding drive shaft and a corresponding ejector pin, each drive shaft passing through the opening, engaging with a corresponding ejector pin and capable of driving the corresponding ejector pin to move back and forth in the guide shell, each guide protrusion extending outwards from a corresponding guide shell, each of the first and second adjustment shafts engaging with a corresponding guide protrusion and capable of driving the corresponding guide protrusion to move along the opening.