The invention discloses a weighing device for grain
purchasing. The device comprises a feeding
throat, an
impurity outlet, a
solenoid valve and a
humidity sensor, wherein a feeding cylinder is arranged at a lower side of a discharging port, a filter net is arranged at the inside of the feeding cylinder, a left side of the filter net is provided with the
impurity outlet, a right side of the filternet is provided with an
air blower, the
air blower and the
impurity outlet are located on the same straight line, the lower side of the filter net is provided with a first motor, the right side of thefirst motor is provided with a feeding
machine, the right side of the feeding
machine is provided with a weighing
barrel, the lower side of the weighing
barrel is provided with the discharging port,the inside of the weighing
barrel is provided with a weighing inner barrel, the
humidity sensor is arranged at the inside of the weighing inner barrel, the lower side of the weighing inner barrel is provided with two symmetrical connection rods, the lower side of the connection rods is provided with a weight sensor, and the
solenoid valve is arranged between the two connection rods. The weighing device for grain
purchasing can be used for impurity removing, weighing and
humidity detection for the grain, and complete multiple operations through one equipment, thus, cost is reduced, and the weighing device for grain
purchasing is more convenient to use.