Embossing Roll Pair for Stiffened Sheet Metal Profiles
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing metal profiles used in dry construction frameworks, such as stud walls and ceiling grids, face issues with flexibility and stiffness, leading to problems like 'board stepping' and inadequate load-bearing capacity, which can result in unsightly finishes and potential reconstruction or replacement of the structures.
Innovation Solution
A new profile design featuring non-collinear or non-coplanar portions joined by arrays of embossed projections, which provide enhanced strength and stiffness through balanced thinning and embossment, allowing for improved load-bearing capacity and reduced flexibility, while maintaining structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If plain sheet steel C-sections are used to form box sections, then the structure can be easily assembled, but the sections are able to slip longitudinally with respect to one another
Solution Approach 1:
The patent applies local quality by adding embossed projections specifically at the joining portions where C-sections connect, rather than modifying the entire profile. These localized embossed features provide friction and mechanical interlocking precisely where needed to prevent longitudinal slippage, while maintaining the simplicity of plain sheet steel construction elsewhere in the profile.
2Ease of manufacture
If stud members are made from plain sheet steel, then the material is easy to work with, but the members flex during or after securing of plasterboard sections, causing board stepping
Solution Approach 1:
The patent changes the physical parameters of the sheet steel by embossing projections at the joining portions. This embossing process modifies the material structure locally, increasing stiffness and resistance to flexing in the critical joining areas without requiring a complete change in material type or overall profile design, thus maintaining ease of manufacture while improving flex resistance.
3Strength
If profiles are made stronger to support loads, then the load-bearing capacity increases, but the profiles become less flexible and more prone to board stepping
Solution Approach 1:
The patent segments the profile into distinct zones: flexible plain sections for overall structural adaptability and rigid embossed joining portions for stable load transfer. This segmentation allows different parts of the same profile to have different mechanical properties, enabling the profile to be strong where needed for load-bearing while remaining flexible elsewhere to accommodate installation and structural movement.
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 new profile design significantly enhances the stiffness and resistance to deflecting forces, reducing the incidence of 'board stepping' and ensuring better performance under load, with improved compression characteristics and resistance to bending, thus providing a more robust and stable framework.
Implementation Method 1
the or any gap between adjacent plasterboard sections may be filled by plaster or other jointing compounds
Implementation Method 2
the joining portion comprising an array of formations
Implementation Method 3
the profile having enhanced strength and stiffness
Implementation Method 4
resistance to bending
Data Source
Figure 1~1B
Figure 2A~2D
Figure 3~4
AI summary
A pair of rolls (190a, 180a) for forming a pattern on sheet material (101a), the first roll (190a) comprising a first forming portion (192a) for forming at least part of a first pattern (103a) on a sheet material (101a) and a second forming portion (191a) for forming at least part of a second pattern (110a) on the sheet material (101a), the first forming portion (192a) comprising a first array of projections and the second forming portion (191a) comprising a second array of projections, the second roll (180a) comprising a third forming portion (182a) for forming at least part of said first pattern (103a) on the sheet material (101a) and a fourth forming portion (181a) for forming at least part of said second pattern (110a) on the sheet material (103a), the third forming portion (182a) comprising a third array of projections and the fourth forming portion (181a) comprising an array of rebates, the second forming portion (191a) and the fourth forming portion (181a) being co-operable to emboss a pattern corresponding to the respective array of projections and rebates on the sheet material (101a) and the first (192a) and third (182a) forming portions are co-operable to cold work harden the sheet material (101a) to form an array of projections and depressions with each projection on one side of the sheet material (101a) corresponding to a depression on the other side of the sheet material (101a).