Filling Hopper Double Partition Walls Tobacco Tray Alignment
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Solution Overview
Problem
In the tobacco industry, filling apparatuses for multi-segment trays often fail to detect and exclude incorrectly arranged or fragmented rod-like articles moving within the mass flow, which can get stuck behind stationary plates and end up in the tray during filling.
Innovation Solution
A filling hopper design with a receiving region and a storing region featuring double partition walls connected by a carrying framework, allowing access from both sides and eliminating the rear wall, ensures that incorrectly arranged articles are detached from correctly arranged ones and fall outside the tray, enabling observation of article movement and visibility of the tray's walls during filling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional filling hopper with a rear wall is used, then the structure is simple and complete, but incorrectly arranged articles or fragments cannot be detected and remain hidden behind the rear wall, getting fed into the tray
Solution Approach 1:
The hopper is divided into a receiving region and a storing region separated by a partition wall. The partition wall creates distinct functional zones: the receiving region accepts mass flow of rod-like articles, while the storing region holds correctly arranged articles for tray filling. This segmentation allows incorrectly arranged articles to be identified and excluded in the receiving region before they can contaminate the tray.
Solution Approach 2:
The rear wall is completely removed from the hopper structure. This extraction of the rear wall element eliminates the hiding spot where incorrectly arranged articles would otherwise remain undetected. Without the rear wall, all articles in the storing region are visible from the rear side, enabling detection and prevention of defective articles from being fed into the tray.
2Manufacturing precision
If the partition walls extend fully along the height of the storing region, then article arrangement is controlled, but access for observation and removal of articles is limited
Solution Approach 1:
The partition walls are designed with non-uniform characteristics: they extend along a significant portion of the storing region height to provide adequate article arrangement control, but deliberately do not extend to the very top. This local modification creates an open upper section that facilitates easy access for observation and removal of articles, while maintaining sufficient partitioning for proper arrangement in the lower section.
Solution Approach 2:
Access to articles is enabled from multiple dimensions: the open top of the storing region allows vertical access, while the removed rear wall provides horizontal access from the rear. This multi-dimensional access approach maintains article arrangement control through partition walls while overcoming the limitation of single-point access.
3Loss of information
If the hopper operates without a rear wall, then visibility and monitoring of articles is improved, but the structural completeness and support are reduced
Solution Approach 1:
The partition wall acts as an intermediary structural element that provides the necessary support and definition for the storing region without requiring a complete rear wall. The partition wall, extending partially along the height, mediates between the need for structural support and the need for visibility, creating a framework that maintains hopper integrity while allowing observation of article movement from the rear.
Data Source
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AI summary
The object of the application is a filling hopper for a filling apparatus for multi-segment trays in the tobacco industry with a receiving region for rod like articles in the form of a mass flow and a storing region for rod like articles comprising side walls (8, 9) and a bottom wall (10), whereas the storing region has double partition walls (16) alternately forming a plurality of parallel cavities (15) and slots (14), where the partition walls (16) extend in principle along the entire height of the storing region. The partition walls (16) are connected with each other by means of a carrying framework so that at least from one side free access to the articles inside the cavities (15) is maintained. The carrying framework comprises at least one fastening area (19).