Analysis Of The Application Of Photoelectric Sensor In Automated Production Line

Photoelectric sensors generally consist of a light source, an optical path, and a photovoltaic element. The photoelectric detection method has the advantages of high precision, fast response, non-contact, etc., and has many parameters to be measured, the sensor has a simple structure, a flexible form and a small volume. In recent years, with the development of optoelectronic technology, photoelectric sensors have become a series of products, and their varieties and output are increasing. Users can select various specifications according to their needs and obtain wide applications in various light industrial automata.

1. Photoelectric strip deviation detector. The strip deviation detector is used to detect the size and direction of the strip material in the correct position during processing, thereby providing a correction signal for the rectification control circuit, which is mainly used in the production process of printing, dyeing, paper feeding, film and tape.

Principle of photoelectric strip deviation detector: The light from the light source is concentrated by the lens 1 into a beam of light, which is directed to the lens 2 and then concentrated on the photoresistor. On the way that the parallel beam reaches the lens 2, part of the light is blocked by the strip under test, reducing the amount of light transmitted to the photoresistor.

2, packaging filling height detection. The volumetric method is used to measure the finished product of the package. In addition to the certain error range requirements for the weight, there are certain requirements for the filling height to ensure the appearance quality of the product. The finished product that does not meet the filling height will not be allowed to leave the factory. When the filling height h deviation is too large, the photoelectric connector has no electrical signal, that is, the packaged article is pushed out by the actuator for processing.

3. Photoelectric color quality detection. Photoelectric correction sensor manufacturers believe that if the packaged item is white, the quality will be poor, and some will appear yellow. Before the product is packaged, the color will be detected by photoelectricity. When the item is yellow, there will be a comparison of the voltage difference output. A valve that blows out yellowed items by compressed air.