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A peelable blue rubber plug hole fixture and peelable blue rubber plug hole method

A technology of blue glue and plugged holes, which is applied to printed circuits, electrical components, printed circuits, etc., can solve problems such as low efficiency, high cost, and cumbersome processing procedures, and achieve smooth surfaces, stable airflow, and prevention of pits and holes The effect of edge overflow glue

Active Publication Date: 2022-04-12
DALIAN CHONGDA CIRCUIT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the production board with the through-hole diameter ≥ 4.0mm. When the hole is plugged and printed with peelable blue glue, the existing method has the problems of cumbersome processing flow, low efficiency and high cost. It provides a silk screen printing on the production board. A strippable blue glue plug hole jig used when the blue glue can be stripped, and a method for using the jig to perform strippable blue glue plug holes on a production board

Method used

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  • A peelable blue rubber plug hole fixture and peelable blue rubber plug hole method
  • A peelable blue rubber plug hole fixture and peelable blue rubber plug hole method
  • A peelable blue rubber plug hole fixture and peelable blue rubber plug hole method

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Embodiment 1

[0033] Such as Figure 1-6 As shown, this embodiment provides a peelable blue glue plug hole jig, which includes an air guide plate 10 , an air guide mesh backing plate 20 and a compressed air box 30 stacked in sequence from top to bottom.

[0034] The air guide plate 10 is provided with air guide through holes 11, and the arrangement of the air guide through holes 11 corresponds to the through holes set on the PCB production board 50 to be processed, and the air guide through holes 11 on the air guide plate 10 The diameter of the hole is 2.0 mm larger than the diameter of the corresponding through hole on the PCB production board 50 .

[0035] The air guide mesh backing plate 20 is provided with perforations 21 arranged in a matrix, and the perforations 21 are square perforations with a side length of 50 mm. The line width of the mesh wire 22 forming the square perforation 21 on the air guide mesh backing plate 20 is 3.0 mm. The thickness of the air guide mesh backing plate...

Embodiment 2

[0044]This embodiment provides a peelable blue glue plug hole jig, including air guide plates and compressed air boxes stacked up and down. The structures of the air guide plate and the compressed air box in this embodiment are the same as those of the air guide plate and the compressed air box described in Embodiment 1. Compared with Example 1, the peelable blue glue plug hole jig of this example has no air guide mesh backing plate.

[0045] When using a screen printing machine to screen-print the peelable blue glue on the PCB production board, use the peelable blue glue plug hole jig of this embodiment to assist the silk screen printing, including steps S1-S4.

[0046] Step S1 is as follows: S1. Fix the strippable blue rubber plug hole fixture on the working table of the screen printing machine, that is, stack the compressed air box and the air guide plate on the working table of the screen printing machine in sequence, and use ordinary tape to seal the compressed air box. ...

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Abstract

The invention relates to the technical field of printed circuit boards, in particular to a strippable blue glue plug hole jig and a strippable blue glue plug hole method. In the present invention, by setting a compressed air box and an air guide plate, compressed air is input into the compressed air box so that the air of a certain pressure is output from the compressed air box and introduced into the through hole of the PCB production board through the air guide hole of the air guide plate, and the silk screen can When stripping the blue glue, the peelable blue glue flowing to the bottom of the through hole is resisted upward by the compressed air, and the balance of gravity and resistance can prevent the peelable blue glue from flowing out of the through hole. At the same time, the air guide mesh backing plate stacked between the air guide plate and the compressed air box can be used to balance and stabilize the airflow entering the air guide plate, so that the airflow finally entering the through holes of the PCB production board is stable. , so that the surface of the peelable blue glue filled at the opening of the through hole is smooth.

Description

technical field [0001] The invention relates to the technical field of printed circuit boards, in particular to a strippable blue glue plug hole jig and a strippable blue glue plug hole method. Background technique [0002] The peelable blue glue covering the surface of the object generally plays the role of insulation, moisture-proof and protection. In the PCB field, it is necessary to screen-print peelable blue glue on some production boards during the production process, which mainly plays the following two roles. The peelable blue glue on the finished product can be effectively used in the process of PCB reflow soldering and then wave soldering. Protect the gold fingers on the PCB and prevent the pads that do not require solder from being polluted by solder; print peelable blue glue before the tin spraying process to protect the gold fingers from being polluted during the tin spraying process. [0003] The processing flow and requirements of silk screen peelable blue gl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H05K3/00
CPCH05K3/0094H05K2201/0959
Inventor 陈志强宋清双赵金亮王学伟
Owner DALIAN CHONGDA CIRCUIT
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