In order to meet the quality requirements of drugs, pharmaceutical manufacturers, combined with machine vision detection system and automatic production line machines, through graphic analysis, color identification, bar code identification and character detection, to achieve high-quality and high-efficiency production line process.
In recent years, pharmaceutical manufacturers have joined the ranks of fully automated production lines. Among them, the manufacturing and testing process of liquid medicine bottle has gone through many levels of barriers. With the help of machine vision system, the overall detection efficiency and detection accuracy are greatly improved compared with the previous manpower. The color industrial camera can capture the image of each medicine bottle passing through the high-speed production line, and then through the analysis of the back-end image software, the good and bad products can be screened. At the same time, the image data can also be recorded, so that the subsequent order can quickly and accurately query, trace and retrieve the items.
Bottled drug testing
After the liquid medicine is bottled, it usually needs to go through a test link to judge whether the liquid medicine is bottled enough, whether the bottle mouth is damaged, whether the bottle cap is pressed in place, so as to ensure that the drug quantity is correct, the medicine bottle is sealed well, and the vacuum degree in the bottle is normal. Therefore, before the detection of bottled liquid medicine, pharmaceutical manufacturers usually use image sensors to record the characteristics of the normal bottle mouth and the standard position of the liquid medicine. When each bottle of liquid medicine passes through the detection lens, the camera will capture the characteristics of the currently detected object, and then compare the captured image with the previous sample image. The detection standard adopts the relative position standard, so it will not make wrong judgment because the bottle is affected by the weak beating on the conveyor belt.
Application of USB industrial camera in medicine bottle detection
Nowadays, USB industrial camera has been widely installed on the conveyor belt instead of human eyes to judge and measure, because it can capture clear images in the process of high-speed movement, and can transfer and process image data quickly and accurately. USB 3.1 industrial camera can run continuously for a long time under harsh environment, and can ensure stable and reliable performance and accurate shooting efficiency. It can be used to monitor, analyze and optimize pharmaceutical process, ensure drug quality and improve productivity.
Bottle mouth defect or defect
It is inevitable that the empty medicine bottle will collide and be damaged in the transportation process. In order to avoid the mixing of broken glass in the bottle and the failure of sealing the bottle cap, the industrial camera can be used for vertical detection of the bottle mouth before filling the liquid medicine. Firstly, the empty medicine bottle with defect or broken bottle mouth is screened and filtered. The photosensitive element provides high-speed and low-noise image quality, and can clearly present the captured bottle mouth. The frame rate is up to 593 frames / s, which can capture each medicine bottle passing through the production line quickly. The captured image can be immediately transmitted to a small computer. After the computer automatically compares the normal sample images, the small computer can send instructions to the automatic machine to send the unqualified medicine bottles The waste area will be eliminated.
Bottle cap and liquid position detection
When the medicine bottle is filled with liquid medicine by automatic machine, it is sealed directly. In general, the bottle mouth is sealed with an inner plug, and then the air pressure inside the cover is sealed with a machine to ensure that the liquid medicine in the bottle is not polluted or deteriorated. First, the color of the bottle cap is photographed vertically by the color industrial camera of the camera, and the image is transmitted to the computer. By storing the set color in advance, the color comparison is carried out to identify whether the medicine bottle passed by is correct. Then, a side camera is set up at the next level, and the obtained image is identified by measuring software or program. At the same time, the position of bottle cap is compared up and down to confirm whether each cap is sealed. At these two levels, unqualified medicine bottles, such as the results of bottle mouth detection, are automatically sent to the automatic machine by the small computer and sent to the waste area.
Label / code detection and character recognition
In addition to bottle testing, many pharmacists attach or embed the label number, date or related drug name on the bottle body or cap. Yingmei precision camera provides an efficient and robust barcode identification algorithm, which can quickly detect and identify one-dimensional and two-dimensional barcodes in any direction; it can also set to scan only specific barcode graphics and orientation; or set ROI to accelerate detection and decoding efficiency. Pharmaceutical manufacturers only need to read the one-dimensional or two-dimensional barcode on the label or sprayed on the package by using industrial camera to obtain the detailed information of drug ingredients, production date, batch number and expiration date in real time.
The machine vision detection system in some applications of drug bottle detection really greatly improves the efficiency and accuracy of pharmaceutical. For pharmaceutical manufacturers, it fully solves the part that cannot be completed by manual detection. With the help of machine vision system, the efficiency and accuracy of drug bottle detection are greatly improved.