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The system selects Datalogic’s high-end two-dimensional scanner to deform the DataMatrix on the surface of the sphere The 2D code is spread out on the imaging plane to obtain a clear image. Use dedicated data Matrix Visual inspection software to read 2D bar codes, and is equipped with DataMatrix two-dimensional code comparison and printing quality inspection application software.
Performance
Able to identify DataMatrix two-dimensional codes on special metal surfaces and output the results;
The recognition rate is above 99%;
Recognized DataMatrix two-dimensional code type:
ECC000, ECC050, ECC080, ECC100, ECC140, ECC200, ECC000-140, ECC000-200;
DataMatrix two-dimensional code parameters are automatically adjusted to suit different types of bar code detection;
The system can monitor the detection process by displaying images, and can also set parameters and view records through the display interface;
This system can exchange data with the laser printing DataMatrix two-dimensional code equipment to verify the accuracy of the printed barcode;
It can be integrated with other related equipment to detect different functions of workpieces printed with DataMatrix two-dimensional codes;
It can control shutdown for wrong DataMatrix two-dimensional code or unrecognizable number, and it can be confirmed manually;
The system reserves an extended network interface.
system applications
1. Application area
The system mainly cooperates with special DataMatrix two-dimensional code printing or engraving equipment to perform bar code quality inspection on workpieces with DataMatrix two-dimensional codes printed on a special metal sphere, and to ensure the accuracy of the printed bar codes.
It can be used in conjunction with equipment for assembling parts printed with DataMatrix two-dimensional codes. The DataMatrix two-dimensional codes of the workpiece can be read before the next step of processing or assembly to ensure that the workpiece provided by the previous process is accurate.
It can also be used to track the quality of workpieces or equipment with DataMatrix two-dimensional codes printed on the surface of a special metal sphere, and read data information in real time.
2. Applications
The system was successfully applied to the DataMatrix two-dimensional code identification on the surface of the ball piston of an internationally renowned auto parts supplier. The diameter of the steel ball is 6mm, the area of the two-dimensional code printed on the spherical surface is about 5 square millimeters, and the DataMatrix two-dimensional code on the surface of the spherical piston The code printing equipment is provided by a well-known domestic company. The DataMatrix QR code online recognition system on the surface of the metal ball and laser printing equipment have jointly completed the printing of the DataMatrix QR code on the surface of the steel ball and the quality control of the bar code. The DataMatrix two-dimensional code on the surface of the engine ball piston is used for product quality monitoring and tracking the quality of products distributed all over the world.
Because this system is modified on the existing equipment production line, the manual feeding method is currently used. The inspection of the workpiece is integrated with the other functional tests of the workpiece, and the inspection and feedback information are sent to the production equipment in turn.
Appendix: Introduction to DataMatrix QR Code
A two-dimensional code is a symbol that records information in two-dimensional directions on a plane. It makes full use of the two-dimensional space on the plane, greatly improves the information density, and makes it possible to encode big data on a small area; secondly, due to its super error correction ability, it can be accurately identified even if a large area is damaged.
DataMatrix two-dimensional bar code formerly known as Datacode, by the United States International Data Corporation (International Data Matrix, Abbreviation ID Matrix) was invented in 1989. DataMatrix two-dimensional barcode is a matrix type two-dimensional barcode, The smallest size of the DataMatrix 2D barcode is the smallest among all barcodes, especially suitable for the identification of small parts and directly printed on the entity.
As shown in the figure, the appearance of the DataMatrix two-dimensional barcode is a square or rectangular symbol composed of many small squares. The information storage is based on the arrangement and combination of light and dark squares. code), so the computer can directly read the content of the data, without the need for the symbol mapping table (Character Look-up Table).
The size of the DataMatrix two-dimensional barcode can be adjusted arbitrarily, the maximum can be 14 square inches, and the minimum can be 0.0002 square inches. This size is also the smallest among the current one-dimensional and two-dimensional barcodes, so it is especially suitable for printing on the components of the circuit board. Since DataMatrix 2D barcodes can be accurately read only by reading 20% of the data, it is very suitable for applications where barcodes are easily damaged, such as printed on parts exposed to special environments such as high heat, chemical cleaners, and mechanical erosion. .
Data Matrix is mainly used for the identification of small parts in the electronics industry. For example, this code is printed on the back of Intel’s Pentium processor
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