Automatic feeding device

The utility model relates to the field of reflow soldering, in particular to an automatic feeding device. The PCB feeding buffer device comprises a PCB feeding buffer belt, a feeding module belt, a transverse moving assembly and a grabbing assembly which are arranged on a cabinet, the incoming end of the PCB feeding buffer belt is connected with a PCB assembly line, the incoming end of the transverse moving assembly is connected with a carrier backflow line transmission carrier, and the outgoing end of the transverse moving assembly is connected with the feeding module belt; the grabbing assembly adsorbs the PCB on the PCB feeding buffer belt, the carrier inner cover plate is separated from the bottom plate to enable the PCB to be assembled in the carrier, and the feeding module belt conveys the carrier containing the PCB to the reflow soldering line. The PCB to be welded is automatically assembled in the carrier, automatic feeding is achieved, the PCB welding machine can be suitable for feeding and dischargi