How does a fully automatic pigment filling machine achieve ±0.1% filling accuracy?

 

In the chemical, coating and other industries, the accuracy of pigment filling directly affects product quality and production costs. The fully automatic pigment filling machine uses three core technologies to control the filling error within ±0.1%, which completely changes the inefficiency and error problems of traditional manual filling.

1. High-precision sensing system: dual calibration guarantee
The fully automatic equipment is equipped with a weighing sensor + electromagnetic flowmeter dual detection module:
The weighing sensor monitors the weight of the container in real time with an accuracy of 0.01g;
The electromagnetic flowmeter dynamically tracks the pigment flow rate and automatically corrects the pipeline pressure fluctuation;
The dual system data cross-verifies, and the error exceeds the limit and the alarm stops immediately.

2. Intelligent servo control system: millisecond-level dynamic response
The switching delay of traditional pneumatic valves can easily lead to overfilling, while the fully automatic equipment adopts:
Servo motor driven pump: flow control accuracy of 0.1ml/pulse;
Closed-loop feedback system: automatically adjust the filling speed according to viscosity changes;
Anti-drip design: 0.3ml residual liquid is sucked back instantly after filling to avoid wall hanging.

3. Environmental adaptive compensation technology
For variables such as temperature and viscosity, the device has built-in:
Temperature sensor: automatically adjusts the insulation pipe to prevent pigment condensation/volatization;
Viscosity adaptive algorithm: dynamically optimizes the pump speed through the pressure-flow model;
Data traceability system: records the filling parameters of each batch and supports quality traceability.

Application scenario: Filling metallic paint in a low temperature environment of -10℃ can still maintain ±0.2% accuracy.