Silver melting surface pretreatment device with high adaptability

Abstract

The invention relates to a high-adaptability electroless silver surface pretreatment device which comprises supporting frames, a first mounting box and a second mounting box, the second mounting box is arranged on one side of the first mounting box, the supporting frames are mounted on the two sides of the upper portion of the first mounting box and the two sides of the upper portion of the second mounting box correspondingly, and supporting guide rails are mounted on the opposite side faces of the upper portions of the two supporting frames correspondingly; a linear motor is installed on the supporting guide rail, a supporting sliding block is slidably connected between the two supporting sliding rails, a lifting electric push rod is installed in the middle of the supporting sliding block, a stepping motor is installed at the telescopic end of the lifting electric push rod, a supporting block is fixedly connected to the end of a rotating shaft of the stepping motor, and electric sliding tables are fixedly connected to the two sides of the supporting block. A lifting rod is installed on a sliding block of the electric sliding table, a clamping piece is installed at the lower end of the lifting rod, solid particles cleaned out of the surface of the PCB are removed through cleaning liquid, the PCB is cleaned again through ultrasonic waves, and therefore the PCB can be combined with silver ions more tightly in the subsequent silver melting process.

Description

technical field [0001] The invention relates to the technical field of PCB board processing, in particular to a pre-treatment device for silver surface with high adaptability. Background technique [0002] The application of PCB boards is extremely extensive. In the manufacturing process of PCB boards, several processes such as surface lamination, film removal, screen printing, etching, targeting, baking, and cleaning are required; PCB boards are mostly made of printed conductive silver paste to make conductive lines. . [0003] The patent document with publication number CN114258206A discloses a front cleaning device for silver paste through-holes for pcb board production, including a workbench, a box body is arranged on the workbench, and a grinding plate assembly is arranged inside the box body. The grinding plate assembly is used for grinding and brushing the copper surface of the printing silver paste, and a micro-etching assembly is arranged on one side of the grindin...

AI Technical Summary

Problems solved by technology

[0004] The existing silver surface pretreatment device often needs to continuously increase the horizontal area to adapt to the gradually increasing size of the PCB board during use, thereby increasing the volume of the device's containing liquid tank, resulting in a large consumption of containing liquid, improving the The production cost is increased, and it cannot be quickly adapted to the existing PCB board silver process production line, which requires a lot of debugging. When performing pre-treatment, it is often necessary to wash for a long time after each leaching to proceed to the next step of infiltration. It takes a long time and the steps are cumbersome. During the cleaning process, the cleaning liquid cannot be kept uniform, which may easily cause uneven cleaning effect on the surface of the PCB board, and the two sides of the PCB board cannot be cleaned efficiently at the same time, and the cleaning effect is not good.

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