What is the development trend of fruit food graders?

Traditional fruit food graders include volume grading and quality grading. Since the purpose of grading is mainly to unify product appearance specifications, so as to package and improve the sales level, volume grading is the most widely used. What is the development trend of fruit food classifiers? Let’s introduce them in detail: 1. Volume classifiers include drum classifiers, three-roller classifiers and belt classifiers. Their principles are similar, and they all use several levels. The size of the hole frame or gap is screened. 2. The quality grading equipment has developed from the early mechanical weighing and grading form to the current advanced high-speed dynamic electronic weighing and grading form. The fruit grading and waxing equipment of FMC in the United States mainly focuses on quality grading for citrus models. It can complete the cleaning, sorting, waxing, grading, and packaging processes through the entire line; the fruit grading and packaging equipment of MAF France in France , Not only can the fruits and vegetables be classified and packaged, but also can use the electronic and optical principles to sort the defects on the skin of the fruits and vegetables. It is fully computerized and has a high degree of automation. The modernization of food machinery is an important indicator to measure the level of development of a country’s food industry. With the progress of human society, people have put forward higher requirements for the convenience, nutrition, and safety of diet. At the same time, the trend of sustainable development makes The utilization of by-products of agricultural products processing and agricultural waste has become very urgent. Different food machinery has been designed according to production requirements. In the food processing industry, fruits of different sizes, shapes, densities, colors or qualities can be used to process different grades of finished products, which can not only make full use of various materials, but also enable manufacturers to obtain more profits. Fruit processing The fruit must be graded first. Now, a more advanced and ideal classification and quality technology has been applied in the above-mentioned foreign companies-the use of light curtain measurement technology or electronic scanning resolution technology and other new types of fruit classification and quality equipment. The fruit in operation is detected through the light curtain, the outline size is collected, and the central processing unit calculates, compares with the set grading size, and sends an instruction to drive the sorting mechanism to transfer the fruit to the appropriate rank. Using computer vision processing systems such as electronic scanning and distinguishing, it can identify fruits and vegetables with different colors and shapes, and sort the defects on the skin of fruits and vegetables, so as to realize online classification and quality. This is an intelligent model that integrates light, machine, electricity and programming operations. This grading and quality classification technology is a qualitative leap compared with the traditional aperture and quality classification methods, because it achieves a non-contact type of classification and quality classification, which is accurate and high-speed. In the late 1980s, my country introduced citrus fresh-keeping and grading production lines from companies such as the United States and Japan, mainly in the form of quality and aperture grading. Later, after digestion and absorption by domestic scientific and technological personnel, domestically-made drum-type citrus fresh-keeping and grading production lines began to spread. However, there are currently no mature products in China for new types of fruit grading and quality equipment using light curtain measurement technology or electronic scanning resolution technology.