刀式齿具、转子、转子组件、混料装置及其在制造禾塑复合材料中的应用

By using a mixing device with a dual-axis discontinuous blade-type toothed rotor rotating in opposite directions, the structural damage and overheating problems of straw fibers during processing have been solved, achieving efficient mixing and equipment stability of straw-plastic composite materials, and improving material performance and equipment lifespan.

CN118216321BActive Publication Date: 2026-07-17NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI
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Patent Information

Application Number
CN202410491426.5
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2024-04-22
Publication Date
2026-07-17
Estimated Expiration
2044-04-22

AI Technical Summary

Technical Problem

Existing equipment suffers from problems such as damage to the straw fiber structure, overheating and carbonization, and equipment instability when processing straw-plastic composite materials, resulting in a decline in material quality and a shortened equipment life.

Method used

The mixing device employs a dual-axis, non-continuous blade-type toothed rotor with opposite rotation. By setting staggered blade-type teeth and roller-type rotors in the mixing chamber, combined with heat insulation and pressure relief structures, it achieves full kneading and stable shearing of plant fibers and polymers, avoiding fiber structure damage and overheating.

Benefits of technology

It effectively avoids deep damage and overheating of straw fibers, maintains the integrity of the fiber structure, improves the overall mechanical properties of the material, extends the service life of the equipment, and reduces noise and vibration.

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Abstract

本发明公开了一种刀式齿具、转子、转子组件、混料装置及其在制造禾塑复合材料中的应用。转子包括转轴以及多个刀式齿具，多个刀式齿具分布在转轴的外壁上，多个刀式齿具组合形成m个齿具组，m个齿具组沿转轴的轴向间隔分布，每一齿具组所包含的n个刀式齿具沿转轴的周向间隔分布，刀式齿具的刀面与转轴的外壁垂直，刀面的延伸面和转轴的外壁的交线的切线与转轴的轴线所呈角度大于0°且小于90°，m≥2，n≥2。本发明在禾塑复合材料的混合加工中，既能保证秸秆等植物纤维与塑料等聚合物的充分捏合，又能有效避免秸秆等植物纤维结构的深度破坏，由此保持秸秆等植物纤维的高长径比及结构完整性，进而赋予秸秆禾塑复合材料优异的综合力学性能。
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Citation Information

Patent Citations

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  • Fiber reinforced composite manufacturing machine

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