The blue and green sliders move back and forth vertically in opposite directions and gradually bring the red workpiece onto the oblique slide.
The pink crankshaft, blue and green connecting rod and the sliders form two slider crank mechanisms.
The advantage of this double-action feeder compared to a single-action feeder (https://youtu.be/D-0s5_dU4jQ)
with the same features: the slider travel is reduced by two times.
See a real feeder:
https://youtu.be/pcdgMsiTLDA
STEP files of this video:
https://www.mediafire.com/file/tiy2d6ypb5up2lk/VerticalStepFeederDoubleActionSTEP.zip/file
Inventor files of this video:
https://www.mediafire.com/file/f6nrqtyjs554pii/VerticalStepFeederDoubleActionInv.zip/file
