Comparison of swing screen and drum classifier
Fruit grading machine, also called fruit sorting machine, is an important application of food grading machine. With the continuous development and growth of my country's fruit industry, fruit grading machine has also been rapidly developed and applied. Its grading principle is that the size and shape of the holes of the grading device on the grading machine must be determined based on the size, shape and product process requirements of the fruit. Pay special attention to the design and calculation of the grading series to improve the sorting quality to ensure the smooth progress of the subsequent procedures. The fruit sorting machine is composed of a sorting mechanism, a transmission mechanism and a motor. During fruit sorting, the fruits are transported to the hopper, and then flowed into the grading drum or oscillating sieve, so that the fruit rolls and moves in the drum or moves relative to the oscillating sieve, and flows out through the corresponding holes in the process , In order to achieve the purpose of classification. Scheme selection In order to realize the predetermined function, there are two schemes that can realize the scheme one. The fruit sorting scheme adopts the swinging sieve type. The second scheme adopts the drum type for fruit sorting. So what are the advantages and disadvantages of the two schemes? Let's take a look at it in detail: Comparison of the schemes. Scheme 1 uses a swinging sieve to sort fruits. The mechanical vibration device is driven by a belt to rotate the eccentric wheel, and the eccentric wheel drives the crank connecting rod mechanism to realize the straight and reciprocating swing of the body. The advantages of the swing screening machine are: simple structure, easy manufacturing and installation; convenient adjustment of the screen surface, high utilization rate; mainly linear reciprocating swing. Vibration is supplemented, and the damage to the material is less; it is suitable for the classification of multiple materials and the same material with different specifications. The disadvantages are: difficult power balance, high noise, inconvenient cleaning, etc. The second scheme adopts a roller type to sort fruits. The roller is driven by a friction wheel. When the material flows into the roller through the hopper, it rolls and moves between them, and flows out through the corresponding holes in the process to achieve the purpose of grading. The advantages of the rolling sorter are: simple structure, high grading efficiency, stable work, and no power imbalance. The disadvantages are: the machine occupies a large area, and the utilization rate of the screen surface is low; due to the difficulty of adjusting the screen holes, the adaptability to the raw materials is poor. The main purpose of fruit sorting is to realize the large-scale and mechanization of fruit production, and it is mainly for single material classification, and does not make too many requirements for the damage of the fruit, so it is more reasonable to adopt the second scheme.