Parameter Settings for double-station double-bag powder packaging scales

The parameter Settings of the double-station double-bag powder packaging scale need to be combined with the equipment performance, production requirements and material characteristics. The following are the suggestions and analysis for the key parameter Settings:

I. Core Parameter Settings

Weighing range and accuracy

Range: Set according to the material characteristics (such as density, fluidity), for example, 10-50kg or 5-25kg. It is necessary to ensure that the weighing sensor's measurement range covers the maximum packaging volume.

Accuracy: For powdered materials, it is recommended that the accuracy be ±0.2%-0.5% (dynamic), and the static accuracy can be higher (such as ±0.1%). The zero point and linearity of the sensor need to be calibrated to avoid errors caused by material residue or mechanical vibration.

Bag clamping and unloading parameters

Bag clamping force: Adjust according to the bag type (such as woven bags, paper bags) to ensure sealing without over-squeezing the material.

Unloading speed: It is divided into fast and slow gears. The fast gear improves efficiency (such as 80%-90% of the target volume), while the slow gear reduces impact (remaining 10%-20%). A lead time (such as 200-500g) needs to be set to compensate for the drop error.

Dual-station collaborative control

Alternating logic: Set the time for workstation switching (such as a delay of 0.5 to 1 second after a single packaging is completed) to avoid mechanical interference.

Synchronous calibration: Dual-station load cells need to be regularly cross-calibrated to ensure that the error consistency is ≤±0.1%.

Ii. Optimization of Auxiliary Parameters

Dust removal and anti-blocking design

Negative pressure dust removal: Set the suction air volume (such as 500-800m³/h) to reduce dust overflow.

Anti-clogging mechanism: The frequency of the vibrator (such as 50-100Hz) needs to be adjusted according to the fluidity of the material to avoid bridging.

Electrical and safety parameters

Voltage and frequency: Compatible with three-phase 380V/50Hz power supply, with overload protection set (such as power-off when the rated current reaches 120%).

Emergency stop response: The emergency stop button must cut off the power source within 0.5 seconds.

Data recording and traceability

Batch management: Record the output and pass rate of each shift, and support data export (such as USB or network interface).

Alarm threshold: Abnormal conditions such as over-tolerance (e.g. ±1%) and empty bags need to trigger audible and visual alarms and shut down the machine.

Iii. Parameter Debugging and Verification

No-load test: Check the smoothness of mechanical movements and adjust the bag clamping and unloading times.

Static calibration: Verify the accuracy of the sensor using standard weights (such as 10kg, 25kg).

Dynamic trial production: Continuously package more than 20 bags, statistically calculate the average error and standard deviation, optimize the lead time and unloading speed.

Long-term stability: One bag is randomly inspected every 4 hours, and the monitoring accuracy drift is recommended (≤±0.3%).

Iv. Examples of Typical Application Scenario Parameters

Flour packaging: Weighing range 5-25kg, accuracy ±0.2%, unloading speed (fast: 2kg/s, slow: 0.5kg/s), bag clamping force 30-50N.

Chemical powder: Weighing range 10-50kg, accuracy ±0.5%, dust removal air volume 800m³/h, anti-clogging vibration frequency 80Hz.

Through the above parameter Settings, it can be ensured that the double-station double-bag powder packaging scale operates efficiently, accurately and stably, while meeting the requirements of hygiene and safety. The actual debugging needs to be further optimized in combination with the characteristics of the materials and the production rhythm.