PCB board cleaning line

Abstract

The invention discloses a PCB cleaning line comprising a conveying platform. An alkali washing device, a first water washing device, a pickling device, a second water washing device, a browning device, a third water washing device and an air drying device are orderly arranged in a conveying direction on the conveying platform. Conveying rollers which are rotatingly connected to the conveying platform are arranged above and under the conveying platform, and a channel for passing a PCB is formed between the upper and lower conveying rollers. The PCB is placed on the conveying platform to be continuously conveyed forward during use, firstly the PCB passes the alkali washing device to be washed by alkali liquor, oxides and fingerprints on the surface of the PCB can be removed, then the PCB passes an acid solution of the pickling device to achieve the purposes of removing surface grease and a residual film, the PCB passes the browning device to perform micro-etch roughening treatment on a copper surface so as to improve the bonding force between a copper foil and epoxy resin when the circuit board is pressed, liquid adhering to the surface of the circuit board is washed and removed by the washing devices in the process and is avoided from being brought to a next cleaning link, and the purpose of a better cleaning result is achieved.

Description

technical field [0001] The invention relates to the field of PCB board cleaning equipment, more specifically, it relates to a PCB board cleaning line. Background technique [0002] Printed circuit board, also known as PCB board, is the support body of electronic components and the carrier of electrical connection of electronic components. The purpose of PCB cleaning is to ensure the quality of subsequent PCB production. Most of the current production processes use water spray to clean the surface of the PCB. This cleaning method is single, and the surface of the PCB is prone to residual grease and oxides. Fingerprints, etc., have the problem of poor cleaning effect, which needs further improvement. Contents of the invention [0003] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a PCB board cleaning line, which has the advantage of good cleaning effect. [0004] To achieve the above object, the present invention provides ...

AI Technical Summary

Problems solved by technology

[0002] Printed circuit board, also known as PCB board, is the support body of electronic components and the carrier of electrical connection of electronic components. The purpose of PCB cleaning is to ensure the quality of subsequent PCB production. Most of the current production processes use water spray to clean the surface of the PCB. This cleaning method is single, and the surface of the PCB is prone to residual grease and oxides. Fingerprints, etc., there is a problem of poor cleaning effect, which needs further improvement

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