With the development of science and technology and the intensification of market competition, the requirements for various food production enterprises and automatic packaging factories are also increasing. New machinery is needed for automatic packaging to improve production efficiency, meet delivery needs, and reduce the cost of process flow. For certain products, it is also required that packaging machinery be connected to production machinery, and remote diagnostic services can be provided in case of equipment failure.
In addition, packaging noise is required to be low, the process is high, and waste is minimal. In response to this situation, automated packaging design manufacturers continuously innovate their designs based on customer needs, and improve the efficiency and accuracy of automated packaging through the application of more advanced optical sensors and photoelectric control technology.
During the automatic packaging process, due to trademark printing errors and different film deformations, the cutting position may deviate from the designated position, and even be cut onto the trademark pattern due to the accumulation of errors. For this reason, modern packaging machines are equipped with advanced photoelectric tracking automatic control systems to correctly control the sealing position, ensuring that each time sealing and cutting is done at the position determined by the positioning mark, rather than sealing against the pattern.

The basic principle of the photoelectric tracking automatic control system is to use the photoelectric system to determine the position of the target, and then load, seal, and cut the packaging bag based on the position of the photoelectric sensor. The system is mainly composed of emission part, photoelectric sensor, signal processing circuit, A/D converter, single chip microcomputer and computer display. Then, automatic packaging is completed through a step-by-step system of heat sealing, cutting and packaging bags.
With the deepening of food safety certification, food enterprises have increasingly high requirements for packaging equipment, and photoelectric control technology must also be designed and developed reasonably with the requirements of mechanical development. A photoelectric sensor is a sensor device that detects light signals and converts them into electrical signals. It can be used to detect non electrical quantities, such as strong light, illuminance, radiation temperature measurement, gas composition analysis, etc. It can also detect object diameter, surface roughness, strain, displacement, etc.
In terms of light intensity and solar radiation monitoring, Gongcai Network has represented the Japanese EKO photoelectric sensors - ms-802, ms-802f, which are radiation sensors used to measure solar energy. They have high-precision irradiance, and their sturdy brass mechanical structure makes them a durable sensor suitable for use in harsh environments. ms-802 is used as a standard for PV and climate research.
