Printed circuit board cleaning machine

Abstract

The embodiment of the invention provides a printed circuit board cleaning machine, belonging to the technical field of printed circuit cleaning. The cleaning machine comprises a chassis, a master control system, a backing water treatment system, a cleaning system, a drying system, a waste water treatment system and a water detection system; the systems are all arranged in the chassis, the main control system is electrically connected with other systems and controls the operation of other systems; wherein, a water inlet and a water outlet are arranged on the backing water treatment system, the water outlet of the backing water treatment system is connected with the cleaning system, and the water outlet of the cleaning system is connected with the waste water treatment system; the drying system is connected with an air inlet of the cleaning system; the detection ends of the water detection system are respectively arranged on the water outlet ends of the backing water treatment system and the cleaning system, which are used for detecting the effluent water of the backing water treatment system and the cleaning system. The cleaning machine has the advantages of high cleaning efficiency, good cleaning effects, cleaning water saving and environmental protection.

Description

technical field [0001] The invention relates to the field of circuit board cleaning, in particular to a printed circuit board cleaning machine. Background technique [0002] In the circuit board welding assembly in the electronics industry, after the components on the circuit board are processed by various welding processes, due to the influence of flux, solder and the environment, a certain amount of residue is left on the pins of the components on the board. These residues directly affect the quality of the product, and must be cleaned to ensure the electrical performance of the circuit board to ensure the stability, reliability and working life of the electronic product. Therefore, cleaning the circuit board assembly is very important. and highly technical work. [0003] At present, the types of fluxes used in the soldering and assembly of PCB components in the electronics industry include: water-soluble, rosin-based or no-cleaning types. Generally, the latter two are us...

AI Technical Summary

Problems solved by technology

Among them, the deionized water treatment system and the cleaning system in the separated water cleaning machine are separated. Due to the lack of a complete machine form, it takes up a relatively large space, which brings inconvenience to equipment installation and combination, and especially cannot meet the requirements of the R&D institution for the trial production of PCB boards. Process requirements for comprehensive processing capabilities of boards and cards

The quality and water pressure of the deionized water generated by this simple connection are unstable, which will cause the cleanliness of the cleaned PCB board to fail to meet the test requirements, and even cause unnecessary damage to the printed circuit board or components.

Secondly, the temperature setting range of the drying system of the separation host is small, and the drying time is long

[0005] The integrated water cleaning machine is an integrated printed circuit board water cleaning machine that integrates the deionized water treatment system and the cleaning system. Therefore, it is impossible to detect the generated deionized water and discharged wastewater, that is, it is impossible to determine whether the generated deionized water is qualified, which will affect the cleaning effect, and it is also impossible to determine whether the discharged wastewater will cause environmental pollution. The printed circuit boards cannot be dried directly and quickly. Therefore, this all-in-one printed circuit board water cleaning machine cannot complete the entire process of cleaning and processing printed circuit boards, resulting in low cleaning efficiency, large pollution and inability to clean the printed circuit boards after washing. Guaranteed washing effect

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