A small semi-automatic stevia leaf picker

Abstract

The invention provides a small semi-automatic stevia rebaudiana leaf picking machine, relating to the field of agricultural picking mechanical engineering, in particular to leaf picking and harvesting of an agricultural commercial crop, namely stevia rebaudiana. The small semi-automatic stevia rebaudiana leaf picking machine comprises a flexible clamping device, a support bracket, a rack, a discharging sliding plate, a leaf picking mechanism, a built-in conveyer belt, a lower cutter, an upper cutter, a transmission system and a feeding platform. Stevia rebaudiana tender tips are clamped by a manipulator composed of a flexible clamping chain and the support bracket and move forward, leaf picking operation is rapidly carried out under the action of the spurteeth of a comb at the inlets of amain barrel and a secondary barrel, the picked leaves are discharged outside by virtue of an air current and the built-in conveyer belt; the tender tips are rapidly cut off when meeting the upper cutter and the lower cutter and automatically fall into a collecting frame; and steam stalks are discharged outside from the discharging sliding plate under the action of discharging teeth at the terminals of the main barrel and the secondary barrel, and an automatic leaf removing and separating process is completed. The small semi-automatic stevia rebaudiana leaf picking machine provided by the invention has simple structure, good reliability, high automation degree and convenience in maintenance.

Description

technical field [0001] The invention belongs to the field of agricultural picking machinery engineering, and in particular relates to the automatic leaf picking operation of the agricultural economic crop-stevia rebaudiana. Background technique [0002] Stevia was successfully introduced in China in the late 1970s, and has been planted for more than 30 years. Stevia is a promising economic crop and has become the third natural sugar source after sucrose and beet sugar. At present, the planting area of ​​stevia in my country has reached more than 400,000 mu, accounting for two-thirds of the world's planting area, and has become the world's largest planting base. Stevia has its own characteristics when harvesting. It must be in good condition, otherwise the sales price will be greatly reduced. Therefore, the current harvesting process of stevia is: manual harvesting (1.5 mu / person. day) - bundling - artificial leaf picking in the drying field (1 mu / person. four days) - manual...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the problems of low efficiency, unreliable young shoot cutting, inconvenient operation, low degree of automation, poor safety and low production efficiency in the prior art, the present invention has designed a small semi-automatic stevia leaf picker, which consists of a frame, a main Roller, auxiliary roller, flexible clamping chain, support bracket, upper cutter, lower cutter, conveyor belt inside the machine, motor, transmission system, feeding table and other main components

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