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 |