A fully automatic corn kernel screening device

Abstract

The invention provides a full-automatic niblet screening device. The full-automatic niblet screening device comprises a feeding device and a screening device, wherein the feeding device comprises a feeding hopper and a feeding tube; a flow distributing plate is arranged in the feeding tube; the inside of the feeding tube is divided into a material flowing channel and an impurity flowing channel by the flow distributing plate; a quantitative feeding device is arranged in the material flowing channel and comprises a quantitative feeding plate and a piston type jacking device; the quantitative feeding plate is mounted on the inner wall of the material flowing channel; a quantitative feeding opening is formed in the quantitative feeding plate; a movable ball is arranged at the quantitative feeding opening; the piston type jacking device is movably mounted on the inner wall of the material flowing channel and is used for jacking up the movable ball in an intermittent manner; and an air feeding tube is arranged at the inlet end, close to the material flowing channel, of the side wall of the feeding tube; and the screening device comprises a screening box as well as a first screening unit and a second screening unit which are arranged in the screening box. The full-automatic niblet screening device is simple in structure and thorough in screening, can completely separate niblets from stalks, can separate the niblets with different plumpness degrees, and is low in labor intensity and high in work efficiency.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a fully automatic corn grain screening device. Background technique [0002] At present, after the corn is harvested and threshed, impurities such as husks and sand grains are often mixed in the corn, which affects the overall quality of the corn. There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of corn; the other is the method of using a corn screening machine. The method has the disadvantage of high cost of purchasing the equipment due to the complex structure of the corn screening machine. In addition, due to the large amount of impurities in the corn, a large amount of dust will appear during the screening process, which will affect the health of the operators. Contents of the invention [0003] Based o...

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Problems solved by technology

[0002] At present, after corn is harvested and threshed, impurities such as hulls and sand are often mixed into the corn, which affects the overall quality of the corn.

There are usually two kinds of existing screening methods: one is the method of manual screening, which has the disadvantages of high labor intensity, high cost, low work efficiency, and low sieving clarity of corn; the other is the method of using a corn screening machine. method, this method has the disadvantage of high cost of purchasing the equipment due to the complex structure of the corn screening machine. In addition, due to the large amount of impurities in the corn, a large amount of dust will appear during the screening process, which will affect the health of the operators

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