Abstract: A stamping machine including a rubber stamping head angular position adjustment mechanism, which can be adjusted to the desired angular position for stamping different workpieces, a horizontal slide adjustment mechanism, which can be adjusted to move the rubber stamping head to the desired horizontal position, an automatic ink feeder, which can be adjusted to supply metered quantity of ink, a scraper carrier, which keeps the scraper blade and the ink application roller unit operated at the same elevation, an ink tray assembly, which is detachable, and a workpiece conveying mechanism, which uses a driving wheel driven by an air cylinder through a rack and a gear to turn a conveying chain in carrying a series of workpiece table plates for a continuous stamping operation.