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G412 Three-proof paint visual comprehensive tester
Details

G412 Three-proof paint visual comprehensive tester

1. Equipment pictures

 

 

2. 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. Detection items include:

 

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

 

Set up the QR code, see the figure below.

 

The operation method is as follows: the tested product flows into the testing equipment, moves to the designated position, the system controls the CCD camera to take pictures, and has a professional image software analysis platform----GOI platform to intelligently analyze 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

1.5mm

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 messages

2D barcode recognition

Identify datamatrix barcodes and associate the same barcode on the front and back

 

3. Equipment testing process

 

 

Test flow chart:

 

4. Comparative analysis of project import efficiency and manual testing

 

Automatic visual inspection before and after import profiling :

Manual inspection overview :

1. The positive judgment rate cannot be guaranteed ;

2. The manual detection time cannot be guaranteed : ;

3. Long-term operation is prone to visual fatigue ;

 

 

Overview after importing visual auto-detection :

1. The detection time of single screen (200mm*150mm) is 4S

2. There is no omission of judgment according to the set rules ;

3. The positive judgment is 99%;

4. The detection rate is 100%;

5. One person can operate n sets of equipment to save manpower ;

Equipment import cost recovery cycle accounting:

 

Take a product that takes 6 minutes to test once as an example:

 

project

before import

after import

Capacity

same

same

The detection rate

Can not guarantee

The missed judgment rate is 0%, and the correct rate is 99%

Number of personnel in a single shift (person)

one line

one line

 

 

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