Susceptor Positioning in Aerosol Rod Manufacturing
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Solution Overview
Problem
Existing aerosol-generating articles face challenges in achieving consistent distribution of aerosol-forming substrate material around the susceptor, leading to uneven heating and varying smoking experiences.
Innovation Solution
An apparatus and method that sandwich a susceptor strip between two sheets of aerosol-forming material, such as homogenized tobacco, to ensure even positioning and heating, using movers to transport and form the components into a rod configuration, ensuring the susceptor is centrally located and surrounded equally on both sides.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the susceptor is inserted into the aerosol-forming substrate after substrate preparation, then the manufacturing process is simple, but the distribution of substrate material around the susceptor is uneven
Solution Approach 1:
The susceptor strip is positioned between the two sheets of aerosol-forming substrate material before they are joined together. This preliminary positioning ensures that when the sheets are compressed and bonded, the susceptor becomes centrally located with equal amounts of substrate material on both sides, eliminating the need for post-assembly adjustments and ensuring uniform substrate distribution.
Solution Approach 2:
The susceptor strip is nested between two sheets of aerosol-forming substrate material during the assembly process. The sheets are then compressed and bonded together, trapping the susceptor in a central position within the resulting rod structure. This nesting approach ensures precise positioning and uniform surrounding of the susceptor by substrate material.
2Adaptability or versatility
If manual positioning of the susceptor is used, then flexibility in placement is achieved, but consistency in substrate distribution is poor
Solution Approach 1:
The susceptor strip is preliminarily positioned on one sheet of substrate material before the second sheet is applied. This preliminary positioning, combined with the subsequent compression and bonding process, ensures that the susceptor becomes centrally located with consistent substrate distribution on both sides, achieving both flexibility in initial placement and consistency in final positioning.
Solution Approach 2:
The compression force and bonding parameters are optimized to ensure that when the two sheets are joined with the susceptor between them, the substrate material distributes uniformly around the susceptor. By controlling the compression parameters, consistent positioning is achieved across all manufactured articles.
3Productivity
If the susceptor is not centrally positioned, then manufacturing is easier, but heating uniformity and smoking experience consistency deteriorate
Solution Approach 1:
The susceptor strip is preliminarily positioned between the two sheets of substrate material during assembly, ensuring central positioning before the compression and bonding steps. This preliminary action guarantees that the susceptor will be centrally located in the final rod structure, ensuring uniform heating during use and consistent smoking experience across all products.
Solution Approach 2:
The invention uses two separate sheets of substrate material, one on each side of the susceptor, rather than a single asymmetric arrangement. This symmetric dual-sheet approach ensures equal distribution of substrate material around the susceptor, leading to uniform heating and consistent product performance.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach enhances production consistency, providing a uniform smoking experience and reducing the likelihood of susceptor misalignment or burning, thereby improving the repeatability and quality of aerosol generation.
Implementation Method 1
an elongate susceptor in thermal contact with the aerosol-forming substrate, such that heating of the aerosol-forming substrate may be effected by induction-heating
Implementation Method 2
an inductive heating device comprises an induction source which produces an alternating electromagnetic field which induces heat generating eddy currents and hysteresis losses in a susceptor
Implementation Method 3
The susceptor is in thermal proximity of the aerosol-forming substrate, for example a tobacco substrate. The heated susceptor in turn heats the aerosol-forming substrate
Implementation Method 4
As the released compounds cool, they condense to form an aerosol that is inhaled by the user
Data Source
AI summary
The invention relates to an apparatus (1) for the production of a rod component (100) of an aerosol generating article, said apparatus comprising: ∘ a first mover (4) adapted to transport a first sheet (2) along a first direction; ∘ a second mover (5) adapted to transport a second sheet (3) along a second direction; ∘ a third mover (6) adapted to transport a susceptor strip (10) along a third direction, said third mover being adapted to position said susceptor strip between the first and the second sheet during transport; and a rod forming device (20) being adapted to form a rod from the first and the second sheets and the susceptor strip and having an inlet (21) and an outlet (22), wherein said first and second sheets and said susceptor strip are introduced in said inlet and said rod is outputted from said outlet.