Tobacco Rope Compactor Unit for Blockage-Free Alternating Material Feeding
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Solution Overview
Problem
Existing machines in the tobacco industry face challenges in producing continuous ropes with alternating aerosol-generating materials without causing blockages, which affects the quality and continuity of the final product due to difficulties in balancing the width of the containment channel.
Innovation Solution
A machine with a compactor unit that laterally compacts particles of the first aerosol-generating material before feeding the second material, using rotatable rollers and motorized belts to ensure synchrony and reduce friction, while maintaining a predetermined sequence and profile of the materials along the rope.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the containment channel width is increased to avoid blockages, then the reliability of continuous operation is improved, but the manufacturing precision of the rope profile deteriorates
Solution Approach 1:
The compactor unit performs preliminary lateral compaction of the first aerosol-generating material before the second material is fed. This preliminary action densifies the material and creates a compacted surface that prevents subsequent blockages during the feeding of alternating materials, while maintaining the channel width within the optimal range for profile precision.
Solution Approach 2:
The containment channel is functionally segmented into two zones: a first compaction zone where the compactor unit densifies the first material, and a second feeding zone where alternating materials are deposited. This segmentation allows the channel to maintain a width optimized for profile precision while the compaction zone prevents blockages through material densification.
2Manufacturing precision
If the channel width is reduced to maintain rope calibre precision, then the manufacturing precision is improved, but the reliability of continuous operation deteriorates due to blockages
Solution Approach 1:
The compactor unit performs preliminary lateral compaction of the first aerosol-generating material before the second material is fed. This preliminary action densifies the material and creates a compacted surface that prevents subsequent blockages during the feeding of alternating materials, while maintaining the channel width within the optimal range for profile precision.
Solution Approach 2:
The compactor unit changes the physical parameters of the first aerosol-generating material by applying lateral compaction force, increasing its density and reducing its volume. This parameter change allows the material to be fed reliably through a narrower channel without blockages, maintaining both calibre precision and continuous operation reliability.
3Reliability
If a compactor unit is added to prevent blockages, then the reliability of continuous operation is improved, but the device complexity increases
Solution Approach 1:
The compactor unit is designed with multi-functionality: it performs lateral compaction of the first material, defines the containment channel geometry, and works in coordination with the feeding mechanisms for both materials. This multi-functionality reduces the need for separate dedicated components, thereby limiting the increase in device complexity while achieving reliable continuous operation.
Solution Approach 2:
The compactor unit is merged with the containment channel structure, where the side walls of the channel serve dual purposes as both geometric definers and compaction surfaces. This merging eliminates the need for separate compaction mechanisms, reducing device complexity while maintaining reliability improvements.
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 solution prevents blockages and ensures optimal quality and continuity of the final product by maintaining the balance of the containment channel width, allowing for the production of high-quality smoking articles with alternating aerosol-generating materials.
Implementation Method 1
a belt the active branch of which is subject to suction and movable in a conveying direction
Implementation Method 2
laterally compact the particles of the first aerosol-generating material held on the active branch of the belt by friction between said particles and at least a first element and at least a second element of the compactor unit
Data Source
Figure 1
Figure 2
Figure 3
AI summary
The invention relates to a machine (1) for producing a continuous rope of the tobacco industry having particles (3) of a first material and particles (4) of a second material different from each other; the machine (1) has: belt conveying means (2) having an active branch (20) movable in a conveying direction (D), with two opposite lateral edges (21, 22); a first feeder (30) below the active branch (20) to feed particles of the first material (3); a second feeder (40) arranged below the active branch (20), downstream of the first feeder (30), to feed particles of the second material (4); and a compactor unit (5) between the first feeding zone (31) and the second feeding zone (41) to compact the particles (3) of the first material held on the active branch (20) by acting on the opposite lateral edges (21, 22).