Knitted Heat-Resistant Sleeve for Glass Processing Rollers
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing heat-resistant sleeves for metal bending rollers in automotive glass production fail to provide adequate temperature resistance and cushioning, leading to quality defects and breakage of glass panels due to high forces and rapid cooling.
Innovation Solution
A knitted heat-resistant sleeve with plated stitches, comprising two outer yarns and one inner yarn, where the outer yarns are predominantly made of high-temperature resistant materials like stainless steel or PBO fibers, and the inner yarns are glass or synthetic fibers, providing enhanced temperature resistance and insulation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing heat-resistant sleeves are used for metal bending rollers, then the rollers are covered to prevent direct contact with glass panels, but the sleeves fail to provide adequate temperature resistance and cushioning, leading to quality defects and glass panel breakage
Solution Approach 1:
The patent applies composite materials by combining different fiber types (stainless steel fibers for heat resistance, glass fibers for cushioning and insulation) within the same knitted sleeve structure. This composite approach allows the sleeve to simultaneously provide temperature resistance, mechanical cushioning, and thermal insulation, resolving the contradiction between preventing direct contact and providing adequate protection against quality defects and breakage.
Solution Approach 2:
The patent implements local quality by creating different functional zones within the sleeve through the knitted structure with plated stitches. The outer surface provides heat resistance and smooth contact with glass, while the inner surface near the roller provides cushioning and insulation. This spatial differentiation of properties allows the single sleeve to address multiple harmful factors simultaneously.
2Reliability
If existing sleeves are used, then they cover the rollers, but they fail to maintain glass temperature due to insufficient insulation, causing rapid cooling and potential breakage
Solution Approach 1:
The inclusion of glass fibers as a core component provides effective thermal insulation between the metal roller and the glass panel. This composite structure maintains glass temperature by reducing heat transfer to the cooler roller surface, preventing rapid cooling and associated breakage risks.
3Duration of action of stationary object
If existing sleeves are used, then they provide basic coverage, but they suffer from local damage during long term use, causing local defects in processed glass panels
Solution Approach 1:
The combination of stainless steel fibers and glass fibers creates a composite structure where each material compensates for the other's weaknesses. The stainless steel provides durability and heat resistance, while the glass fibers provide cushioning and damage distribution, preventing local damage during long-term use and maintaining glass panel quality.
Solution Approach 2:
The glass fiber component acts as a cushioning layer that absorbs and distributes mechanical stresses before they can concentrate on specific points. This beforehand cushioning prevents local damage to both the roller and glass panel during prolonged operation, extending service life while maintaining quality.
4Force
If metal bending rollers are used without adequate sleeve protection, then the bending process can be performed, but the glass sheet exerts high forces on the sleeve covering, requiring enhanced cushioning and strength
Solution Approach 1:
The composite structure with stainless steel fibers and glass fibers provides both the required cushioning capability to handle high forces during bending and the durability to withstand prolonged mechanical stress. The glass fibers absorb and distribute forces, while the stainless steel framework maintains structural integrity.
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 sleeve ensures high-quality glass production by preventing local damage to rollers and glass panels, maintaining the glass temperature, and reducing defects, while maintaining its functionality over a longer period.
Implementation Method 1
the use of glass fibers creates an effective insulation between the hot glass panel and the metal roller, such that the hot glass panel does not cool down too fast
Implementation Method 2
the combination of the cushioning effect provided by the second yarns or second yarns and the fine surface structure of the outer surface of the sleeve
Data Source
Figure 1~2
Figure 3~4
AI summary
A knitted heat resistant sleeve for covering rollers in glass processing comprises knitted stitches. The knitted stitches are plated stitches comprising at least two first yarns and at least one second yarn. The outer surface of the sleeve is at least predominantly provided or is provided by the at least two first. The inner surface of the sleeve is predominantly provided or is provided by the at least one second yarn.