Filling Apparatus for Smoking Articles Using Mechanical Delivery
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Solution Overview
Problem
Existing technologies struggle to automatically fill containers, such as casings for smoking articles or capsules, with precise metering of incoherent materials like tobacco, which often stick to surfaces due to oily and resinous properties, making high productivity challenging.
Innovation Solution
A filling apparatus with multiple stations and delivery devices, including pressing means, weighing means, and control systems, that progressively delivers precise quantities of incoherent material into containers, preventing sticking and ensuring uniform filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If pneumatic movement systems are used to move incoherent material from hopper to container, then automated filling is achieved, but the chemical-physical characteristics of the incoherent material are degraded
Solution Approach 1:
The patent replaces pneumatic movement systems with a mechanical delivery device consisting of a rotating member with metering elements. This mechanical system directly conveys the incoherent material from the hopper through a delivery tube into the container, eliminating the need for pneumatic transport and thereby preserving the chemical-physical characteristics of the material while achieving automated filling.
2Productivity
If high productivity is achieved with narrow space constraints, then hourly production reaches 7,000 finished products, but the incoherent material sticks to surfaces making the apparatus inefficient
Solution Approach 1:
The patent extracts the harmful effect of sticking by introducing a specific surface treatment to the delivery tube. The delivery tube is provided with a surface that prevents adhesion of the incoherent material, effectively removing the sticking problem from the system while maintaining high productivity and narrow space constraints.
Solution Approach 2:
The patent changes the surface parameters of the delivery tube by providing it with a specific surface treatment or coating. This parameter change modifies the surface properties to be non-sticking, allowing the incoherent material to flow smoothly through the narrow delivery tube without adhering to the walls, thus enabling high productivity in compact spaces.
3Measurement precision
If precise metering of incoherent material is achieved, then metering precision reaches tenths of a gram, but the apparatus complexity increases
Solution Approach 1:
The patent segments the metering function into a dedicated rotating member with specific metering elements (such as ribs or teeth) that work in conjunction with a corresponding rotor. This segmentation allows precise metering of the incoherent material in tens of grams while keeping the overall apparatus structure relatively simple and modular, avoiding excessive complexity.
Data Source
AI summary
Filling apparatus (10) and method for automatically filling containers (100) for smoking articles with a desired metered quantity of incoherent material (M) of the fibrous type. The apparatus (10) comprises a first and a second filling station (A2, A4) each having one or more delivery devices (22) and being configured to deliver respectively a first and a second quantity of incoherent material (M) into each container (100), wherein the second filling station (A4) is disposed downstream of said first filling station (A2) along a working line.