Cognex Checker sensor realizes zero error in production inspection

AstraZeneca is one of the world's leading pharmaceutical companies with headquarters in London, UK and a research and development headquarters in Sweden. The company's product sales cover more than 100 countries, with 31 production bases in 20 countries. AstraZeneca China is headquartered in Shanghai and has offices in 15 cities in mainland China. The company's production base is located in Wuxi.

As a world-renowned pharmaceutical company, ensuring the accuracy of label inspection during production and achieving the accuracy and stability of system testing has become a top priority. So AstraZeneca needed a supplier that could solve the problem of the number of auxiliary system calculations, and the Cognex Checker system was the best choice.

Customer expectations: production zero error

In the increasingly fierce pharmaceutical industry, the quality of products is above all else, the accuracy of the content of the label is closely related to the life of the consumer. AstraZeneca needs to ensure that the label detection is correct, and the quality of the production is guaranteed by the detection of this label. How to solve the problem caused by the auxiliary system for calculating the number of product labels. When the traditional electronic sensor system detects the edges of two adjacent labels, the calculation often fails, which obviously cannot meet the needs of current production. In order to better achieve zero error in production, AstraZeneca needs more accurate and applicable monitoring instruments to solve the problem of detecting the correctness of the edges of adjacent labels on the production line, calculating the number of labels and prompting false alarms.

Customer Choice: Cognex Checker System

Among the many vision system suppliers, AstraZeneca began to initially select Cognex and several other vision systems to be commissioned on the production line. Through a series of experiences and comparisons, Cognex and several other machine visions were discovered. The manufacturer's products basically meet the requirements of the production line, but other manufacturers' product systems also need a light source, which is relatively costly, and Cognex's Checker itself has integrated LED lighting and see-through equipment. Therefore, it is clear that Cognex's Checker system is more in line with AstraZeneca's needs.

Checker inspection ensures efficient, free operation of the system

Each line in the plant is fully automated and operating at high speeds, and the system can be adjusted to accommodate changes in labeling speed. In order to better coordinate Cognex's Checker sensor and production line, Cognex chose the free-running trigger mode as the trigger condition and used the mode contrast sensor to detect the edges of adjacent labels to determine the appropriate label. Labeling location. The two output ports respectively output a counting signal and an alarm signal. The Checker sensor is small in size, simple to install and install, and integrates LED illumination and lens. It can analyze more than 50 frames per second and has "intelligent learning function". Checker controls the operation or stop of the device by communicating with the PLC. The system uses the touch panel to display the number of labels, allowing the operator to quickly and easily select and monitor through the operator panel.

Cognex's Checker system is ideally suited for use on high-speed systems. It fully meets the needs of AstraZeneca, accurately detecting the edges of adjacent labels and ensuring the count of labels during high-speed production. Once a problem occurs, the keen system will find the error in the first time, promptly issue an error alarm to remind the staff to ensure efficient and safe operation of production, and achieve zero error in production inspection.

Customer evaluation: high satisfaction

Thanks to the stability and accuracy of the Checker system, the quality of inspection and counting is guaranteed, the cost of the customer is reduced, and the problem that is usually impossible to solve is solved. AstraZeneca is considering applying this technology to other areas such as detecting data codes and detecting correct packaging.