Automatic feeding device for heating furnace

The utility model provides an automatic feeding device for a heating furnace, and relates to the technical field of heating furnaces, the automatic feeding device for the heating furnace comprises a heating furnace body for heating metal materials, the upper side of the heating furnace body is provided with a material guide wheel provided with a clamping groove, one end of the material guide wheel is provided with an eccentric wheel, and the other end of the material guide wheel is provided with a clamping groove. One end of the eccentric wheel is connected with a supporting block through a second connecting plate and a first connecting plate, a feeding port is formed in the upper end of the supporting block, and metal materials evenly enter the heating furnace body provided with the feeding port through the material guiding wheel. A metal bar needing to be heated sequentially moves to the other side of a material guiding wheel along with rotation of the material guiding wheel arranged in a clamping groove, v