A tobacco leaf slitting machine

By combining multispectral imaging and AI recognition technology with ultraviolet laser ablation, the tobacco leaf slitting machine solves the problems of low efficiency and poor controllability of leaf shape in traditional tobacco leaf slitting. It achieves efficient and precise tobacco leaf slitting and mold removal, thereby improving the purity of tobacco leaves and the quality of cigarettes.

CN224291254UActive Publication Date: 2026-05-29YUNNAN TOBACCO CORP QUJING BRANCH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Utility models(China)
Current Assignee / Owner
YUNNAN TOBACCO CORP QUJING BRANCH
Filing Date
2025-04-24
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Traditional tobacco leaf sorting technology suffers from long process paths, high energy consumption, low efficiency, poor controllability of leaf shape, and manual sorting is easily affected by subjective factors, making it difficult to meet the small-batch and customized needs of high-end raw materials. Furthermore, it cannot accurately remove moldy areas, resulting in low-quality tobacco leaves being mixed into the finished product.

Method used

It employs multispectral imaging and AI recognition technology combined with ultraviolet laser for precise ablation, integrating intelligent correction and laser mold removal. The system automatically slits tobacco leaves using a laser generator and a high-frequency laser, identifies and removes mold and green impurities, and uses an adsorption plate to avoid damaging the tobacco leaves.

Benefits of technology

This improved the purity of tobacco raw materials, increased the pass rate of high-grade cigarettes, significantly improved sorting efficiency, reduced production costs, and avoided subjective errors and missed detections in manual sorting.

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    Figure CN224291254U_ABST
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Abstract

The utility model discloses a tobacco leaf slitting machine, including support frame, be provided with the conveyer belt in the support frame, the top of conveyer belt in the support frame is provided with the blade deviation rectification mechanism for rectifying the tobacco in the conveyance, and one end of support frame top is fixedly connected with the mounting bracket, and the inside both ends symmetry of mounting bracket are installed with the camera, and the inside of mounting bracket is provided with the blade mildew removal mechanism for removing the mildew part of tobacco, and the blade mildew removal mechanism includes laser generator, high frequency laser, lift air cylinder and adsorption board, and the top of mounting bracket inner wall is fixedly installed with high frequency laser, the utility model has the beneficial effects: adopt multispectral imaging + AI identification technology, combine ultraviolet laser precision ablation, can thoroughly remove the defect such as mildew spot, green miscellaneous, avoid the subjective error and the problem of missed inspection of artificial sorting, ensure tobacco raw material purity, improve the qualified rate of high grade cigarette, and the device integrates intelligent deviation rectification and laser mildew removal, realize the automation processing to tobacco slitting.
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