EnglishViews: 0 Author: Site Editor Publish Time: 2022-12-07 Origin: Site
Visual inspection system is to measure and judge with machines instead of human eyes. Visual inspection machine refers to converting the captured object into image signal through machine vision products (i.e., image capture devices, including CMOS and CCD) and transmitting it to a dedicated image processing system, and converting it into digital signal according to pixel distribution, brightness, color and other information; The image system performs various operations on these signals to extract the characteristics of the target, and then controls the equipment action on the site according to the discrimination results. It is a valuable mechanism for production, assembly or packaging. It has inestimable value in detecting defects and preventing defective products from being delivered to consumers.
Typical defects that can be identified by visual inspection include: label defects, sealing and capping defects, product and packaging integrity defects, printing defects, and container defects.
| Test items | Description of detection content |
Full bottle inspection | Suitable filling amount; Whether the cover exists, height, color and skew; label Presence, location and identification. |
| Correct cap position detection | Cap detection: existence, height, inclination, color, safety belt integrity. |
| Bottle neck measurement (edge to edge, height and thread width) | Detect the width (E – edge to edge), height (H), and thread width (T) of the glass bottleneck. |
| Flatness detection | Check the top of the container for hair, silk lines, or wavy planes due to uneven cuts during fine-tuning. |
| Pollutant detection | Detect any defects on the side wall of the container, including dust, scars, stains and built-in or surface particulate matter accumulated during injection molding. |
| Other tests | Barcode/QR code verification, label control number (LCN) verification, inclined label detection,Corner label detection, label existence inspection, etc |
Advantages of visual inspection system:
1. The non-contact measurement will not cause any damage to the observer and the observed, thus improving the reliability of the system.
2. It has a wide spectral response range, such as the use of infrared measurement invisible to the human eye, which expands the visual range of the human eye.
3. It is difficult for humans to observe the same object for a long time due to long-time stable work, while machine vision can perform measurement, analysis and recognition tasks for a long time.
4. The use of machine vision solutions can save a lot of labor resources and bring considerable benefits to the company.
