Working Principle of Automatic Weighing Device for Rice Organic Fertilizer Packaging Scale

The automatic weighing device of the finished packaging scale for rice organic fertilizer, in simple terms, is "sensing weight → processing signals → controlling feeding → displaying results". The following is a detailed explanation in plain language:

1. Sense weight (sensor working)

How to perceive?

There is a "sensor" (load cell) on the scale, which can sense pressure like a spring. When organic fertilizer is poured into the scale, the sensor is deformed under pressure, and the degree of deformation is proportional to the weight.

What signal does it turn into?

The sensor converts deformation (weight) into weak electrical signals, just like translating "pressure" into "electric current language".

2. Signal processing (amplifier + computer)

What should I do if the signal is too weak?

The electrical signal is too weak for the computer to understand. Therefore, it first passes through an "amplifier" to make the signal stronger, then filters out the noise (filtering), and finally becomes a digital signal (0 and 1).

What does a computer do?

After the computer receives the digital signal, it compares it with the preset weight (for example, 50 kilograms), calculates the difference, and then commands the feeding mechanism.

3. Control feeding (precise feeding)

How to feed the materials?

The feeding mechanism is like a "funnel + conveyor belt". According to the computer instructions:

If the weight is insufficient, continue to add materials.

If the weight is sufficient, stop immediately.

To what extent is it accurate?

The error can be controlled within ±0.1%. For example, for 50 kilograms of fertilizer, the error does not exceed 50 grams.

4. Display results (screen + alarm)

What does the screen display?

The screen on the scale will display in real time information such as the current weight and the number of bags that have been packaged, making it clear at a glance for the operator.

What does "call the police" mean?

If the weight exceeds (for example, 51 kilograms) or is insufficient (for example, 49 kilograms), the system will give a "beep beep beep" alarm to remind the operator to check.

5. Calibration and Maintenance (Regular Inspection)

Why is calibration necessary?

After long-term use, the sensor may "deviate" (with an increased error), so it is necessary to recalibrate it with standard weights (such as a 50-kilogram iron block) to ensure the accuracy of the scale.

How to maintain it on a daily basis?

Regularly clean the dust on the scale and check if the sensors and circuits are loose, just like giving the scale a "physical examination".

Summary:

Sensing weight: The sensor senses the weight of the fertilizer and converts it into an electrical signal.

Signal processing: The computer calculates how much fertilizer is still lacking and directs the feeding.

Control feeding: Precise placement with minimal error.

Display result: The screen shows the weight. If it is overweight or underweight, an alarm will be triggered.

Calibration and maintenance: Regular inspection to ensure the scale is always accurate.

Zhengzhou Hanke Machinery's rice organic fertilizer finished product packaging scale workshop offers all products in stock. We support users to visit our factory for on-site inspection and Tours. You can also consult online to learn about the preferential prices of the equipment and receive production guidance. Users who are interested can consult and learn online.