Electric tapping knife and rotary-cut cutter head thereof

Abstract

The invention discloses an electric tapping knife and a rotary-cut cutter head thereof. The rotary-cut cutter head comprises a knife handle which is provided with a knife handle connection end and a knife handle mounting end, and a knife body which is arranged on the knife handle mounting end; the knife body is provided with a knife edge, the knife edge comprises first knife edges, second knife edges and third knife edges which are connected in sequence, and the first knife edges are located on the sides, close to the knife handle, of the third knife edges; the first knife edges extend from the ends close to the axis of the knife handle to the ends away from the axis of the knife handle; the second knife edges are in an arc shape and protrude in the direction away from the knife handle connection end; the third knife edges extend from the ends close to the second knife edges to the ends away from the second knife edges and incline toward the axis of the knife handle. The rotary-cut cutter head of the electric tapping knife can not only achieve push cutting and pull cutting, but also achieve upward tapping and downward tapping, and effectively improves the operational performance of the electric tapping knife; meanwhile, in tapping, not only is the tapping depth guaranteed, but also it is guaranteed that the cambium of a rubber tree is not harmed, and it is convenient to achieve the standard requirements of tapping.

Description

technical field [0001] The invention relates to the technical field of natural rubber tapping, and more specifically, relates to an electric tapping knife and a rotary cutter head thereof. Background technique [0002] In the natural rubber industry, V-shaped rubber tapping knives are commonly used in China and 7-shaped rubber tapping knives are commonly used abroad to tap rubber manually, but relying on manpower to use V-shaped or 7-shaped rubber tapping knives requires high technical requirements for rubber workers, requires a lot of training costs, and is labor-intensive. It is easy to cause the fatigue of rubber workers and reduce the tapping efficiency and effect. In order to reduce the technical requirements and labor intensity for rubber workers, an electric rubber tapping knife is developed. The electric rubber tapping knife is mainly of the rotary cutting type, specifically imitating a V-shaped or 7-shaped rubber tapping knife driven by mechanical force. [0003] T...

AI Technical Summary

Problems solved by technology

[0004] According to the characteristics of the electric rubber tapping knife invented at home and abroad, the existing electric rubber tapping knife mainly realizes a single push-cut or pull-cut rubber tapping method.

In addition, the existing electric rubber tapping knife can only realize positive knife tapping (cutting the rubber from the middle of the trunk, cutting the bark from the top to the trunk base), and cannot realize negative knife tapping (opposite to the positive knife cutting direction, starting from the trunk of the rubber tree) Cut the bark step by step from the base to the treetop)

Therefore, it is impossible to use one machine for multiple purposes, resulting in lower performance

[0005] In addition, due to the imperfect design of the limit protection device of the existing electric rubber tapping knife, it is easier to damage the rubber tree, and the rubber tapping effect is also poor; moreover, the motor volume of the electric rubber tapping knife, the rubber tapping head, and the limit protection device are relatively large , making the entire electric tapping knife bulky and heavy, not easy to carry and tap

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