Convex Contact Surface Additive Deposition for Aerosol Components
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Solution Overview
Problem
Existing additive deposition chambers in aerosol-generating article manufacturing suffer from imprecise control of additive application and require frequent cleaning, leading to inconsistencies and performance issues.
Innovation Solution
An apparatus with a device having a convex contact surface and nozzles applies additive to a band of material, stretching and spreading it to improve accuracy and consistency, while minimizing contact with funnel surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If an enclosed additive deposition chamber with multiple nozzles is used to apply additive to the sheet, then the additive can be applied to the material, but precise control of the amount and location of additive deposition is not achieved
Solution Approach 1:
The invention extracts the additive application process from the enclosed chamber environment and performs it in the open atmosphere just before the funnel. This eliminates the need for complex enclosed chambers with multiple nozzles while achieving precise control of additive deposition location and amount through a simpler single-nozzle or limited-nozzle configuration positioned at the critical point where precision is needed.
Solution Approach 2:
The additive is applied to the sheet in advance, immediately before the sheet enters the funnel, rather than in an enclosed chamber earlier in the process. This preliminary action at the critical moment ensures precise control of additive location and amount while simplifying the overall device structure by eliminating the need for complex enclosed deposition chambers.
2Manufacturing precision
If the additive deposition chamber is used to apply additive to the sheet, then additive can be deposited, but regular cleaning is required
Solution Approach 1:
The invention removes the additive deposition process from the enclosed chamber that requires cleaning, and performs it in an open configuration where the nozzle is easily accessible. This extraction eliminates the need for regular cleaning of enclosed chamber surfaces while maintaining consistent additive application through simple nozzle positioning and potential nozzle replacement or cleaning access.
Solution Approach 2:
The invention employs a simple, easily replaceable nozzle configuration for additive deposition. Rather than maintaining a complex enclosed chamber that requires regular cleaning, the system uses a straightforward nozzle assembly that can be quickly replaced or cleaned if needed, significantly reducing maintenance time and complexity.
3Ease of manufacture
If additive is applied only to the top surface of the sheet using gravity-dependent deposition, then the deposition process is simple, but the additive on the top surface comes into direct contact with the inner surface of the funnel causing performance issues
Solution Approach 1:
Instead of applying additive only to the top surface where it would contact the funnel, the invention applies additive to the bottom surface of the sheet. This inverted approach allows the additive to be deposited on the surface that will contact the funnel, ensuring proper adhesion and transfer of additive to the material while preventing contamination of the funnel inner surface, as the additive is now on the correct side of the sheet.
Solution Approach 2:
The invention changes the dimension of additive application by switching from top-surface deposition to bottom-surface deposition. This dimensional change in application location allows the additive to be positioned on the sheet surface that will contact the funnel, ensuring proper additive transfer while preventing funnel contamination, effectively solving the problem through a simple spatial reconfiguration.
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
Enhances the precision and consistency of additive application, reduces material deformation, and optimizes the formation of aerosol-generating article components.
Implementation Method 1
one or more nozzles configured to apply additive to the band of material when the band of material passes the device
Data Source
Figure 1~2
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AI summary
A method and apparatus (2) for manufacturing a component of an aerosol-generating article. The apparatus comprises a conveyor (44) for conveying a band of material (40) through the apparatus (2) along a first path (42), and a device (1) disposed along the first path (42). The device (1) comprises one or more nozzles (20) configured to apply additive to the band of material (40), when the band of material passes the device (1), and a device body (10) comprising a contact surface (15) for contacting the conveyed band of material (40) as the band of material passes the device (1), and wherein the contact surface (15) has a convex profile as viewed in the direction of the first path (42) at the device (1).