Automatic powder feeder is a device specifically designed to automatically transport powder materials from storage bins or other sources to production lines or other designated locations. Its working principle is usually based on screw conveyor or pneumatic conveying technology. In the screw conveyor mode, the powder material is pushed forward by the rotation of the screw shaft and the frictional force between the screw blades; In pneumatic conveying mode, the powder material is driven by compressed air or nitrogen gas medium and transported to the destination through pipelines. Automatic powder feeding machines are usually equipped with control systems that can automatically control parameters such as feeding speed, conveying distance, and conveying volume, and can be linked with production lines and other equipment to achieve automated production.

The core working principle of automatic powder feeding machine

The working principle of the automatic powder feeder mainly relies on two methods: spiral conveying or pneumatic conveying, as follows:

1. Spiral conveyor

The screw conveyor is composed of a casing, a screw shaft, a driving device, a feeding port, and a discharging port. Spiral blades are installed on the spiral shaft. When the motor drives the spiral shaft to rotate, the spiral blades push the powder material along the casing and finally output it through the discharge port. This method is suitable for situations where the conveying volume is large and the conveying distance is short.

2. Pneumatic conveying

The pneumatic conveying system mainly includes compressed air or nitrogen sources, conveying pipelines, powder silos, hoppers, pneumatic conveying valves, filters, etc. Compressed air or nitrogen enters the pipeline from the compressed air source, enters the silo through the pipeline, drives the powder material into the conveying pipeline, and delivers it to the destination through the pipeline. This method is suitable for situations where the conveying volume is small, the conveying distance is long, and there are special requirements for powder materials (such as avoiding pollution).

3. Automatic control system

Automatic powder feeding machines are usually equipped with control systems that can automatically control parameters such as feeding speed, conveying distance, and conveying volume, and can be linked with production lines and other equipment to achieve automated production. Common control systems include PLC control systems, touch screen control systems, remote monitoring systems, etc.

4. Characteristics of powder materials

The selection and design of an automatic powder feeder should consider the characteristics of the powder material, such as density, particle size, flowability, moisture content, temperature, etc. Different powder materials have different requirements for conveying methods, equipment parameters, etc.

5. Equipment security guarantee

Automatic powder feeding machines should have comprehensive safety measures, such as dust prevention devices, overload protection, emergency stop devices, safety warning devices, etc., to ensure the safety of operators and equipment.

Application of Automatic Powder Feeding Machine

Automatic powder feeding machines are widely used in industries such as chemical, pharmaceutical, food, building materials, metallurgy, etc., for the transportation and feeding of various powder materials. Its advantage lies in its ability to improve production efficiency, reduce labor costs, and enhance production safety, making it an indispensable equipment in modern industrial production.

If you need more detailed information or consult about the selection of an automatic powder feeder, please contact Jiangsu Stek Intelligent Manufacturing Co., Ltd. They have rich experience and technology, and can provide you with professional solutions to help you improve production efficiency and reduce production costs.