Quantitative filling device and quantitative filling method

Abstract

The invention relates to a quantitative filling device and a quantitative filling method. The quantitative filling device comprises a filling pipe, a switching valve, a photoelectric detection device and a controller. The filling pipe is provided with a water outlet. The switching valve is communicated with the filling pipe. The photoelectric detection device comprises a light source transmitter and a receiver, wherein the light source transmitter and the receiver are arranged oppositely. The light source transmitter and the receiver are both arranged below the water outlet. The controller is electrically connected with the photoelectric detection device and the switching valve. After a container reaches the quantitative liquid level, the valve can be quickly closed through the quantitative filling device, the filling accuracy is high, and the response is quick; meanwhile, the anti-interference capacity of the photoelectric detection device is high, and cost is low; and the application occasions of the quantitative filling device can be effectively guaranteed, the reliability of the quantitative filling device can be improved, and the service life of the quantitative filling device can be prolonged.

Description

technical field [0001] The invention relates to filling equipment, in particular to a quantitative filling device and a quantitative filling method. Background technique [0002] Accurate control of liquid quantitative filling is widely required in the production process of industrial products, pharmaceutical products, and daily necessities. The current mechanical valve filling is contact type top-opening valve filling. The cost of mechanical valve filling is low, but the filling accuracy is low and the water supply pressure has a great influence on it, which cannot meet the requirements of quantitative filling. The commonly used flowmeter is equipped with a quantitative filling device consisting of an on-off valve. The filling cost is high. Long-term use will easily lead to a large error in the flowmeter. At the same time, slight vibration will cause measurement errors in the flowmeter, resulting in large errors in quantitative filling accuracy. Contents of the invention ...

AI Technical Summary

Problems solved by technology

The current mechanical valve filling is contact top-opening valve filling. The cost of mechanical valve filling is low, but the filling accuracy is low and the water supply pressure has a great influence on it, which cannot meet the requirements of quantitative filling.

The commonly used flowmeter is equipped with a quantitative filling device composed of a switching valve, which has high filling costs. Long-term use will easily lead to a large error in the flowmeter. At the same time, a slight vibration will cause a measurement error in the flowmeter, resulting in a large error in quantitative filling accuracy.

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