Extrusion Mold Shaping Posts for Faster Aerosol Release
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Solution Overview
Problem
Aerosol generating articles produced by the extrusion method have a relatively single form and low aerosol extraction efficiency during the heating process.
Innovation Solution
An extrusion die with a first cavity and multiple shaping posts arranged circumferentially, forming extrusion gaps that create protrusion structures on the aerosol generating substrate, increasing the space for aerosol release and improving extraction efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the extrusion method is used to produce aerosol generating articles, then the production efficiency is improved, but the form of the article becomes relatively single and the aerosol extraction efficiency is low
Solution Approach 1:
The cavity is divided into multiple regions by arranging multiple shaping posts (first shaping posts, second shaping posts, third shaping posts) at different positions. Each shaping post creates distinct extrusion gaps that form different protrusion structures (first protrusions, second protrusions, third protrusions) with varying shapes and sizes, enabling diverse article forms while maintaining efficient extrusion production
Solution Approach 2:
Different regions of the cavity have different shaping post configurations. The first shaping posts are arranged in the first region, second shaping posts in the second region, and third shaping posts in the third region, creating locally optimized extrusion gaps that produce articles with differentiated local structures and functions
2Ease of manufacture
If the traditional extrusion method is used, then the manufacturing process is simple, but the aerosol cannot be released promptly and the extraction efficiency is low
Solution Approach 1:
The shaping posts extend in the extrusion direction (length dimension) and create three-dimensional protrusion structures on the article surface. This dimensional approach increases the surface area and creates complex internal pathways for aerosol release, improving extraction efficiency while maintaining the simplicity of the extrusion process
Solution Approach 2:
The extrusion gaps between shaping posts create a porous structure with multiple channels and cavities within the article. This porous configuration provides numerous pathways for aerosol to escape during heating, significantly improving extraction efficiency without complicating the manufacturing process
Data Source
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AI summary
Embodiments of the present application provide an extrusion mold for fabricating an aerosol-generating article. The extrusion mold comprises a first form cavity and a plurality of first forming columns. The first form cavity is provided with a first side wall, the first side wall is provided with at least one extrusion gap, and the extrusion gap comprises a first extrusion gap. The plurality of first forming columns are arranged on the first side wall at intervals in the circumferential direction of the first form cavity, and each of the first forming columns protrudes towards the interior of the first form cavity, such that a first extrusion gap is defined between each two adjacent first forming columns. At least one protruding structure may be formed on a peripheral side of an aerosol-generating medium extruded by the extrusion mold of the embodiments of the present application, and the protruding structure may enable a space for releasing an aerosol on the peripheral side of the aerosol generating medium to be increased; therefore, the release path of the aerosol may be unimpeded, rapid release of the aerosol is facilitated, and the extraction efficiency of the aerosol may be further improved.