A rubber tapping knife

CN224330083UActive Publication Date: 2026-06-09NINGBO CIHEVEA TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
NINGBO CIHEVEA TECHNOLOGY CO LTD
Filing Date
2025-06-06
Publication Date
2026-06-09

AI Technical Summary

Technical Problem

Traditional rubber tapping knives have high cutting resistance on the secondary blade, making it difficult to cut the rubber line. Peeling the bark is time-consuming and laborious, and bark fragments can easily clog the cut and affect equipment operation.

Method used

A rubber tapping knife was designed with the included angle between the main blade and the secondary blade adjusted to α≤90° and β>180°-α. The blade line of the secondary blade is tilted forward, and the protruding blade cuts through the surface of the bark in front of the main blade to form a glue channel. The transition section is designed to reduce jamming and avoid the blade from inserting into the cut-off line.

Benefits of technology

It effectively reduces the resistance of the secondary blade, increases the amount of latex, and makes the bark peeling trajectory controllable, avoiding jamming and ensuring tapping efficiency and normal equipment operation.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224330083U_ABST
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Abstract

The utility model provides a kind of rubber tapping knife, the rubber tapping knife has cutting side;The rubber tapping knife includes main blade part, the main blade part is used to remove the predetermined thickness of the bark to be cut in the height direction of trunk;Sub-blade part, the sub-blade part is used to remove the predetermined depth of the bark to be cut in the radial direction of trunk;The main blade part and the sub-blade part will be cut off and form rubber tapping surface by bark layer;Bending portion, the outer wall of the bending portion is camber surface, the bending portion connects the main blade part and the sub-blade part;Projecting blade, the projecting blade connects the cutting side of the bending portion;The included angle of the blade line of the main blade part and the bending portion is alpha, the included angle of the blade line of the sub-blade part and the bending portion is beta, wherein, alpha≤90 °;Beta> 180 °-alpha.The utility model solves the problem that the sub-blade cutting resistance is large, it is inconvenient to cut off rubber line and peel bark, residual rubber line forms lump and pushes away far from cutting surface by blade, resulting in sliding knife, and low latex volume.
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