GRINDING DEVICE FOR MANUFACTURING VALVE

A grinding device for manufacturing a valve, comprising a machine box. Grinding wheels used for grinding are arranged above the machine box. The grinding wheels are installed on transmission shafts and the transmission shafts are transmittingly connected to a driving motor which provides power for rotation of the grinding wheels. A grinding positioning assembly is arranged on one side of each of the grinding wheels, and the grinding positioning assemblies can support a plurality of blank bars to be ground at the same time. Each grinding positioning assembly comprises a first bottom plate, a first curved plate is provided at the end of the first bottom plate proximate to the corresponding grinding wheel, a discharge slot is formed on the first curved plate, an inclined first fixed plate is connected to the upper end of the first curved plate, fixed blocking plates are arranged on the two sides of the first bottom plate, respectively, and a first supporting shaft and a second supporting shaft are arranged betwe