The purpose of the hopper scale is to measure and discharge metal powder. The hopper scale barrel is divided into two parts, the upper part is cylindrical and the lower part is conical. The hopper scale is installed under the aggregate bin. The hopper scale bracket is mounted on the lower rung of the equipment bracket in a semi-suspended manner, and rubber vibration damping pads are installed between the contact surfaces to weaken the impact of vibration from the equipment bracket on the hopper scale; 3 Weighing modules (composed of weighing sensor, sensor support and related accessories) are installed on the hopper scale support, and the center of gravity connection of the 3 weighing modules is a regular triangle; There are 3 suspension members on the upper edge of the hopper scale, which are respectively suspended under the weighing sensor in each weighing module.

A vibration motor is installed on the conical outer wall of the hopper scale, and the exciting force is about 30kgf. The hopper scale is equipped with a gate, which is driven by a DC electric push rod. The opening of the gate can be adjusted by a knob potentiometer mounted on the panel of the electric control box.

Vibratory feeding The metal powder removed from the hopper scale is evenly dispersed into the reaction tank at a certain speed. The vibrating Feeder is composed of two parts: a discharging trough and a vibrating motor. The discharge trough is of open trough structure and made of steel plate. The vibration motor is installed just below the back part of the middle of the discharge tank, which has the advantages of such installation; When the vibration motor is working, the exciting force can be absorbed by the metal powder in the discharge tank to the maximum extent, so that the discharge effect is better and the noise is less.

The vibration feeder is suspended on the hopper scale support by 4 suspension cables composed of springs and steel cables, so that the discharge trough of the vibration feeder is just below the feed opening of the hopper scale. The suspension cable can effectively buffer the transmission of vibration between the vibration feeder and the hopper scale bracket, thereby protecting the weighing module. There is a certain Angle between the vibrating feeder and the horizontal plane, which makes the discharge more smooth.

Dust cloth bag prevents dust from flying when metal powder is unloaded from the sump to the hopper scale. The dust-proof cloth bag is made of industrial canvas, and elastic bands are sewn on the upper and lower sides, and nylon adhesive buckles are sewn on the left and right sides. Round holes are opened in the appropriate parts of the dust-proof cloth bag. The production method of the dust cloth bag enables it to be firmly and tightly wrapped between the upper mouth of the hopper scale and the corresponding part in the middle of the aggregate bin, and the moving part of the electric push rod on the aggregate bin can freely pass through the round hole on the dust cloth bag. The real-time measurement, cumulative measurement, automatic control and other functions of each device are integrated into an electrical control system, and the electric control box is installed on the equipment bracket of the device.