Resilient Contact Surface for Wrapping Fragile Rod Articles
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Solution Overview
Problem
Fragile rod-shaped articles or segments are prone to damage during wrapping due to compression forces when wrapping materials around them, particularly when using tipping and filter rods in smoking articles.
Innovation Solution
A wrapping apparatus with a rotatable drum and a resiliently displaceable contact surface that gently moves rod-shaped articles or segments out of flutes and onto adhesive wrapping material, reducing the risk of damage by controlling the force exerted during the wrapping process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sheet of wrapping material is wrapped around a rod-shaped article using conventional pressing methods, then the wrapping material is securely attached to the article, but the fragile segments of the article may get damaged due to high compression forces
Solution Approach 1:
The patent applies beforehand cushioning by introducing a resiliently displaceable portion on the contact surface that can deform to absorb compression forces. This resilient portion acts as a cushion between the wrapping material and the fragile segments, preventing damage while still allowing secure attachment of the wrapping material to the rod-shaped article.
Solution Approach 2:
The patent changes the physical parameter of the contact surface by making at least a portion of it resiliently displaceable. This transformation from a rigid to a resilient contact surface allows the system to adapt the compression force applied during wrapping, reducing it to safe levels for fragile segments while maintaining effective wrapping attachment.
2Manufacturing precision
If high compression forces are applied to wrap the material securely, then the wrapping material adheres well to the article, but the fragile segments are exposed to damaging forces
Solution Approach 1:
The resiliently displaceable portion is positioned in advance on the contact surface to cushion the interaction between the wrapping material and fragile segments. This cushioning effect ensures that sufficient force is applied for proper wrapping attachment while preventing excessive force that would compromise the integrity of fragile segments.
Solution Approach 2:
The resiliently displaceable portion acts as an intermediary element between the wrapping material and the fragile segments. It mediates the force transmission, allowing effective attachment while protecting the fragile segments from direct exposure to high compression forces.
3Productivity
If a rigid contact surface is used to efficiently move articles out of flutes, then the wrapping process is fast and efficient, but fragile segments may be damaged by the rigid contact
Solution Approach 1:
The patent applies dynamics by making the contact surface resiliently displaceable rather than rigid. This dynamic characteristic allows the contact surface to adapt its hardness in real-time during the wrapping process, maintaining high productivity through efficient article movement while protecting fragile segments through controlled deformation.
Solution Approach 2:
The contact surface parameter is changed from rigid to resiliently displaceable, allowing the system to maintain productivity through efficient article handling while dynamically adjusting the contact characteristics to prevent damage to fragile segments during the wrapping process.
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
The apparatus effectively wraps rod-shaped articles or segments without causing damage, ensuring fragile components are protected and allowing for efficient wrapping of various types of materials, including smoking articles with brittle heat sources or filters.
Implementation Method 1
at least a portion of the contact surface is resiliently displaceable away from the circumferential drum surface
Implementation Method 2
the sheet of wrapping material having an adhesive on an outer surface of the wrapping material
Data Source
AI summary
An apparatus for wrapping a sheet of wrapping material (5) around a rod-shaped article (4) or a plurality of linearly arranged substantially cylindrical segments, either of which comprises a fragile segment (40), comprising: —a rotatable drum (2) having a circumferential drum surface (20) comprising a plurality of flutes (21) adapted to hold a rod-shaped article (4) or a plurality of linearly arranged substantially cylindrical segments, and comprising attachment portions (22) arranged between the flutes (21) adapted to hold a sheet of wrapping material (5) having an adhesive on an outer surface, —a rolling device (1) comprising a contact surface (10) arranged at a predetermined distance from the drum surface (20), to contact a periphery of the rod-shaped article (4) or plurality of linearly arranged substantially cylindrical segments to make the rod-shaped article (4) or plurality of linearly arranged substantially cylindrical segments move out of the flute (21) and roll over the outer surface having the adhesive thereon to wrap the sheet of wrapping material (5) around the rod-shaped article (4) or plurality of linearly arranged substantially cylindrical segments. At least a portion (101) of the contact surface (10) is resiliently displaceable away from the circumferential drum surface (20).