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
CN110225661BActive Publication Date: 2022-04-12DALIAN CHONGDA CIRCUIT
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DALIAN CHONGDA CIRCUIT
Publication Date
2022-04-12

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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.
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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

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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