The invention discloses an automatic feeding device used by
brake pad formation, which comprises a rack, and a feeding unit and
a weighting unit arranged on the rack, wherein the feeding unit comprises a material
barrel and a spiral convey shaft arranged in the material
barrel; a hopper is arranged at a feed port of the material
barrel; the spiral convey shaft comprises a shaft rod and spiral feeding blades; a plurality of backspacing holes are formed in the feeding blades; the weighting unit comprises
a weighting container positioned below a
discharge port and an electronic scale below the weighting container; two paralleled first slide tracks are arranged on the weighting platform face of the electronic scale; the weighting container and the first slide tracks are in sliding connection; a
gate valve is arranged at the bottom of the weighting container; the rack is further provided with two second slide tracks positioned above a mould; the second slide tracks and the first slide tracks are coaxially arranged; the rack is provided with a convey air cylinder driving the weighting container, and a discharging air cylinder capable of connecting the
gate valve. The device has the advantages that the weighting precision is high, and materials are not easy to block; the over-all structure is simple, and the working efficiency is high.