The utility model discloses an automatic material feeder, including bottom plate, baffle, slider, elastic component, slide rail and pay -off arm, baffle and slide rail are fixed in on the bottom plate, be equipped with on the slider with the spout that the slide rail matches will through this spout the slider install in on the slide rail, the slider is followed the slide rail removes, the elastic component connect in the slider with the baffle, the pay -off arm is fixed in on the slider, keep away from on the pay -off arm slider department is equipped with the recess. Automatic material feeder can be to the stamping equipment autoloading of explosion -proof cover cap to it is high to have improved automatic level and production efficiency, does not need the manual work material of placing and take, has reduced the cost of labor.