Rice classifier with high screening efficiency

Abstract

The invention belongs to the technical field of rice classifiers, and particularly relates to a rice classifier with high screening efficiency. The rice classifier comprises a feeding port, a discharging port, a rack, a machine body and a controller; the machine body is located in the rack, and at least four screening plates are arranged in the machine body; and every two screening plates are oppositely arranged along the center of the machine body, and the ends, away from each other, of every two screening plates are hinged to the inner wall of the machine body. According to the rice classifier, a rotating plate is arranged, rice is thrown out through the rotating plate, and therefore the rice is prevented from being accumulated at the centers of the screening plates; through mutual cooperation of baffles and the rotating plate, the rice thrown to the baffles through the rotating plate is dispersed towards the centers of the screening plates under the elastic force action of the baffles, the rice dispersing effect of the rotating plate is improved, and then the rice screening efficiency is improved; and the rotating plate is tightly attached to the feeding port, the interior of the machine body can be kept in a sealed state in the process that the rice is screened in the machine body, and therefore the rice is prevented from being gelatinized in the screening process.

Description

technical field [0001] The invention belongs to the technical field of rice graders, in particular to a rice grader with high screening efficiency. Background technique [0002] In the processing of modern rice, the rice will be screened. The main purpose of screening is to separate the plump rice from the broken rice, so as to facilitate the sale of rice; in the existing rice screening method, a screening machine is used for screening. When sieving, the rice is poured into the classifier through the feed port, but the rice is easily pushed in the center of the sieve plate, which affects the screening efficiency of the sieve plate, and when the rice is sifted, it will rub against each other, resulting in the inside of the classifier. When the temperature rises, when it is in humid weather, the classifier is connected with the outside world, which increases the air humidity in the classifier, and then gelatinization will occur. [0003] There are also some technical solution...

AI Technical Summary

Problems solved by technology

[0002] In the processing of modern rice, the rice will be screened. The main purpose of screening is to separate the plump rice from the broken rice, so as to facilitate the sale of rice; in the existing rice screening method, a screening machine is used for screening. When sieving, the rice is poured into the classifier through the feed port, but the rice is easily pushed in the center of the sieve plate, which affects the screening efficiency of the sieve plate, and when the rice is sifted, it will rub against each other, resulting in the inside of the classifier. When the temperature rises, when it is in humid weather, the classifier is connected to the outside world, which increases the air humidity in the classifier, and then gelatinization occurs

[0003] There are also some technical solutions for rice graders with high screening efficiency in the prior art. For example, a Chinese patent with application number CN201820957232.X discloses a rice grader with high screening efficiency, including a base and a cylindrical shell The shell is vertically fixed on the base, the top of the shell is provided with a top plate, and the top plate is fixedly connected with a feed port. There are multiple horizontal sieve plates layered inside the shell. The sieve plates are circular. The outer peripheral surface is continuously provided with transmission teeth, and several sieve holes are opened on the sieve plate. The inner ring and the outer ring are provided with grooves opposite to each other, and balls are arranged in the grooves; this technical solution sets a cross-shaped sieve hole on the sieve plate, so that when the rice moves horizontally on the sieve plate, it can easily fall into the pores of the sieve holes to speed up the rice falling from the sieve plate, so as to achieve the purpose of increasing the screening rate of rice; but this technical solution cannot solve the problem that rice is easy to accumulate on the sieve plate The center affects the screening efficiency of the sieve plate, and when the rice is screened, friction occurs between each other, which causes the temperature inside the classifier to rise. When it is in humid weather, the classifier communicates with the outside world, which increases the air humidity in the classifier. , causing the rice to gelatinize during the screening process, which in turn causes the limitation of this technical solution

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