Multi-stage screening limit feeding device and method

Abstract

The invention discloses a multi-stage screening limit feeding device and method. The technical scheme is that the device comprises a limiting rail, a bearing plate, a driving device and a limiting mechanism. A bearing plate is arranged below the head end of the limiting rail. The bearing plate can rotate relative to the limiting rail under the action of the driving device. A multi-layer sorting rail is arranged at the tail end of the limiting rail and provided with a sorting groove. The limiting mechanism is fixed to one side of the limiting rail. The device can screen out materials of different quality levels and can realize the orderly conveying of the materials.

Description

technical field [0001] The invention relates to the field of mechanical equipment, in particular to a multi-stage screening limit feeding device and method. Background technique [0002] For vegetatively propagated root crops, root tubers are used for sowing. Cutting the roots of vegetatively propagated root crops into pieces can obtain roots within a preset weight range. Potatoes are vegetatively propagated root crops, which are sown in tubers. It is advisable to control the quality of the whole seed potato to be cut at 50-160g. If it is less than 50g, it will not be cut into pieces and directly enter the mixing system. If it is more than 160g, it will be directly screened and rejected. Therefore, it is necessary to screen and classify seed potatoes of different quality grades to ensure that they can have rich nutrient supply, thereby having better drought resistance and growth rate. [0003] In recent years, with the in-depth research on mechanized potato planting techn...

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Problems solved by technology

[0007] The prior art also provides a seed potato cutting machine. This invention realizes the integration of feeding, dicing, and spraying, and can mechanized convey and cut potatoes, which improves work efficiency, but fails to realize multi-stage potato cutting. Screening The potatoes are separated, screened and cut into pieces according to different quality grades, which cannot guarantee the nutritional content of the cut potato and the germination rate of the cut potato.

[0008] The prior art also provides a potato sorting device, which can sort potatoes according to the size of the potatoes, and can screen the potatoes on different conveyor belts for transport and sorting, but the machine structure is complex and bulky and the feeding Screening cannot be completed in an efficient and orderly manner, which affects the operation of subsequent dicing and other processes and reduces work efficiency

[0009] The prior art provides a seed potato grading, screening and cutting device, which is mechanized to a certain extent, can be used for screening and grading seed potatoes of different sizes, and can flexibly adapt to the size of seed potatoes, but it cannot be used for different weights. Potatoes are separated, which reduces the utilization rate and germination rate of seed potatoes

[0010] To sum up, the feeding system of the automatic potato cutting device above still has overall deficiencies. Although the automatic cutting of seed potatoes has been realized, it has not been able to separate seed potatoes of different weights for differentiated treatment at first. Can carry out simple feeding

Secondly, it is impossible to carry out orderly feeding to control the potato shape into an ideal positioning state, which is convenient for subsequent efficient seed cutting, because it is impossible to separate the seed potatoes for sowing in the most profitable way, resulting in a waste of resources

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