Automatic Metering Feeder: Dynamic Weighing, Automatic Control, Achieving Continuous Metering and Batching of Bulk Materials

With the development of society, economy, and science and technology, industrial production technologies are constantly innovating. Weighing products, which occupy an important position in industrial production, are developing rapidly and being applied more widely. In industrial production, weighing equipment is mainly used for static weighing and dynamic weighing. Static weighing refers to the material being weighed being in a stationary state, with high weighing accuracy and little external interference, but low weighing efficiency. Dynamic weighing involves the material being weighed in motion, without the need to stop, representing a continuous and dynamic weighing method with high efficiency. However, the weighing accuracy is greatly affected by the environment and material properties, making it difficult to maintain high precision.

Nonetheless, due to its high efficiency, dynamic weighing equipment is becoming more widely used. With advancements and applications in sensors, the Internet of Things (IoT), and dynamic weighing technologies, the performance of industrial bulk material dynamic weighing equipment has been significantly enhanced, improving accuracy. Furthermore, this type of dynamic weighing equipment integrates advanced technologies such as IoT, network information, computer management, and automatic control, making it a comprehensive technical device. The automatic metering feeder is such a comprehensive production technology equipment that features dynamic weighing, automatic control, and continuous feeding, playing a crucial role in the efficient production and batching of bulk materials.

The automatic metering feeder is equipped with weighing sensors, speed sensors, and instruments on the basis of continuous conveying components to form a dynamic weighing system. It also includes a control cabinet for control operations, thereby completing the feeding process. Conveying equipment predominantly uses belts or spiral tubes, with belts being the most common. As technology advances, the weighing conveyor structure of the metering feeder is becoming more streamlined, ensuring more uniform and stable conveyance and allowing the material flow to pass through the weighing module stably.

During the conveying process, the weighing module performs continuous and dynamic weighing. The weighing sensors detect the weight of the passing material in real-time, while the speed sensors monitor the belt speed. The instrument controller continuously receives weight and speed signals in real-time and displays instantaneous flow rate, cumulative amount, etc., on the instrument display panel. The weighing process is continuous and dynamic as long as the conveying continues.

The automatic metering feeder is equipped with an electrical control system that enables automatic control of quantitative feeding based on continuous conveying and dynamic weighing. The instrument compares the instantaneous flow rate of dynamic weighing with the user-set system flow rate in real-time. It outputs corresponding control signals based on the deviation and the frequency converter adjusts the conveyor motor speed to alter the feed rate, ensuring it matches the user-set flow rate and completing quantitative feeding.

From the above description of conveying, weighing, and feeding, it is evident that the entire process of the automatic metering feeder is continuous and automatic, requiring no manual intervention. It offers high operational efficiency and is applied in the batching of industrial bulk materials, enabling efficient and cost-effective bulk material batching.