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Three-proof paint visual comprehensive tester
Details

1. Device function description

 

This equipment is mainly used for online inspection of PCB three-proof paint spraying area. The general defects are missing spraying, multi-spraying, splashing paint on protective parts, etc. It can be placed in front of the furnace (wet film station) and after the furnace (dry film worker). bit), the front and back can be tested at the same time. It mainly uses conformal paint to produce different color characteristics under the irradiation of purple light for visual analysis. Detected items include

 

uDetect   multi-spray, splash paint and missing spray, see the figure below

 

uSet   the QR code, see the figure below .

 

The operation method is: put it in the customer's assembly line, the tested product flows into the testing equipment, moves to the designated photoelectric position, takes pictures of the upper and lower CCD camera signals, and has a professional image software analysis platform - GOI platform for intelligent analysis of the image, Instead of manual visual inspection. And separate GOOD and NG pieces, discharge.

The entire testing process is automated, fast, intelligent, and standardized. The entire testing process achieves uniform quality and standardized rapid testing.

Since the entire testing process is automated, one person can control multiple devices, which can save a lot of manpower while improving efficiency.

 

 

name

Configuration

Measurable size range (board size)

20*20-450*550mm

Test items

The position where the circuit board must be painted with conformal paint, the position where it must not be sprayed, and the oil stain

Detection accuracy

0.1mm

camera

2 industrial-grade high-precision CCD color cameras

pixel

10 million, accuracy 0.069mm/pt

Type of light source

UV Lamp, White Strip Light

How to take pictures

2 cameras each take 4 shots

Test speed

200mm*150mm/s

transfer method

Orbital transport

transfer track

Adopt track drive, adjustable width, height and speed

front and back

Support positive and negative test

misprint

Support printing error daughter board NG information

2D barcode recognition

The barcode on the back panel is the same as the barcode on the front panel.

 

2. Equipment testing process

 

 

Test flow chart:

 

3. Project case

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