Precise dispensing controller and dispensing control method thereof

Abstract

The invention provides a precise dispensing controller and an adhesive dispensing control method thereof. The precise dispensing controller comprises a dispensing controller body, a pressure reducingvalve, a first air pressure sensor, a quick exhaust valve and a control module; the dispensing controller body is provided with a working air source input interface, a dispensing air pressure output interface and a rapid exhaust output interface, the working air source input interface is used for being connected with an air source, the dispensing air pressure output interface is used for being connected with the rubber barrel; the pressure reducing valve is connected between the air inlet of the discharging valve and the working air source input connector, and the gas outlet of the discharge valve is connected with the dispensing air pressure output interface; and the first air pressure sensor can collect the real-time air pressure of a pipeline between an air outlet of the discharge valveand the dispensing air pressure output interface. According to the precise dispensing controller disclose, the self-adaptive adjustment of dispensing parameters and the alarm function of insufficientresidual glue liquid amount can be realized, and the self-adaptive feedback control of the return air suction pressure is realized.

Description

technical field [0001] The invention relates to the field of dispensing technology, in particular to a precision dispensing controller and a method for controlling dispensing of glue. Background technique [0002] Conventional pneumatic dispensing controller, its built-in analog air pressure gauge, digital air pressure gauge or air pressure sensor is connected to the pipeline between the air outlet of the pressure reducing valve and the air inlet of the discharge valve for measurement and display setting Air pressure, unable to monitor the air pressure waveform in the pipeline of the rubber barrel, and does not have the function of monitoring the air pressure in the glue barrel. [0003] For the specific dispensing process, the dispensing parameters are determined when the glue tank is full of glue. With the increase of the number of glue discharges, the remaining amount of glue in the glue tank will gradually decrease, and the glue output will also decrease. When the amoun...

AI Technical Summary

Problems solved by technology

The core problem of this dispensing application: First, the operator needs to change the dispensing parameters many times, and whether the changed parameters are appropriate or not needs to be tested and verified for the glue volume; second, the operator changes the dispensing parameters many times, which will lead to glue output The amount fluctuates obviously, that is, when the glue output is significantly reduced, the dispensing parameters are suddenly changed, resulting in a significant increase in the next glue output

[0004] In summary, such a dispensing operation not only requires the operator to adjust the parameters many times, but also makes it difficult to improve the dispensing consistency

When the remaining amount of glue gradually decreases until there is no glue left, suddenly no glue will be dispensed, which will lead to abnormal glue dispensing procedures on automatic glue dispensing equipment or production lines, and directly affect the entire process flow

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