This technology relates to an automatic chemical mixing and supply device and method, designed to provide chemicals at precise concentrations required for PCB surface treatment equipment and operational processes. The device includes a stock tank for storing the chemical concentrate; a concentrate supply tank equipped with an ultrasonic sensor to detect the distance to the liquid surface of the concentrate supplied from the stock tank; a mixing tank equipped with third and fourth level sensors to detect the levels of water and the diluted solution, where water from a water tank and concentrate from the supply tank are mixed and diluted; a diluted solution supply tank equipped with fifth and sixth level sensors to detect high and low levels, used for storing and discharging the diluted solution; and a controller that controls the On/Off operation of electric valves in each tank based on sensor signals. A key technical feature is that the controller shuts off the supply of concentrate to the supply tank when the distance to the liquid surface, as detected by the ultrasonic sensor, reaches a preset value, thereby controlling the concentration of the diluted solution by regulating the amount of concentrate stored.
Existing solutions in this field have faced structural and functional limitations that required improvement.
This technology can be applied to relevant industries as an automatic chemical mixing and supply system to enhance performance and efficiency.
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