Milk Tetra Pak bag code coding OCR character visual inspection

2026-01-17 Click： 4

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Dairy industry is an indispensable industry for healthy China and strong nation, a representative industry of food safety, a landmark industry of agricultural modernization and a strategic industry with coordinated development of primary, secondary and tertiary industries. In recent years, the scale, standardization, mechanization and organization level of my country's dairy industry has been greatly improved. Leading enterprises have grown and grown, brand building has continued to advance, quality supervision has been continuously strengthened, and industrial quality has been increasingly improved. It has made contributions to ensuring dairy supply and increasing income for dairy farmers. positive contribution.

When purchasing milk, we must pay attention to the production date and shelf life of the product. Once the milk expires, it means that its safety is difficult to guarantee, so we must avoid eating expired milk.

The production date of milk is not only on the outer packaging carton, but also on the Tetra Pak bag containing the milk. For example, on the top of the milk Tetra Pak bag shown below, we can clearly see the production date and code printing, which is easy to identify whether the milk is within the shelf life.

After Tetra Pak milk bags are coded, how does the manufacturer detect and identify them to control the quality of milk?

It turned out that our OCR character visual detection system was used.

system workflow

1. Install an OCR character detection system on the milk Tetra Pak production line;

2. When the milk Tetra Pak bag flows into the visual inspection station after being coded, the machine vision sensor is triggered to take a three-phase coded picture of the top of the Tetra Pak bag and send it to the system. The system extracts and analyzes the picture and compares it with the set good product character image characteristics;

3. When it is detected that the milk Tetra Pak bag is unqualified, the system sends a signal to the rejection device to give rejection processing and alarm prompt.

detection interface

The milk production line applies the OCR character visual inspection system, which not only can quickly detect the date coding of milk Tetra Pak bags, but also can timely eliminate products that fail the date coding. While improving production efficiency and testing accuracy, it also greatly saves labor costs.

Today, as industrial automation becomes increasingly progressive, machine vision technology is being used more and more widely in the industry, and has been recognized and favored by more and more manufacturers.