Drum Lining with Glass-Transition Coating for Adhesive-Free Attachment
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Solution Overview
Problem
Existing drum linings for corrugated board machines require time-consuming replacement and pose health and safety risks due to solvent-based adhesives, and existing self-tensioning solutions are unfamiliar to operators, while rubberized drums necessitate full replacement when worn.
Innovation Solution
A drum lining with a textile carrier layer and two coatings, where the first coating prevents belt slippage and the second coating, with a glass transition temperature near ambient temperature, provides stickiness for secure attachment without adhesives and reversibly decreases stickiness for easy removal, ensuring reliable power transmission and reduced maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If solvent-based adhesives are used to bond drum lining to drive drum, then secure attachment is achieved, but health risks and safety risks increase
Solution Approach 1:
The patent removes the adhesive layer entirely from the drum lining structure. Instead of using solvent-based adhesives to bond the textile carrier to the drive drum, the invention relies on the inherent friction and pressure between the drum lining and the drive drum surface, eliminating the harmful adhesive component while maintaining attachment security.
Solution Approach 2:
The drum lining is designed as a disposable component that can be easily replaced without adhesives. The lining is secured through mechanical friction and pressure during operation, allowing for quick removal and replacement, reducing both health risks from adhesives and downtime for maintenance.
2Reliability
If drum lining is firmly glued to drive drum, then power transmission is optimized, but replacement time increases
Solution Approach 1:
The adhesive bonding layer is removed from the drum lining structure. The lining is instead secured through friction and pressure between the textile carrier and the drive drum surface, enabling quick removal and replacement while maintaining effective power transmission during operation.
Solution Approach 2:
The drum lining is designed to be dynamically secure during operation through friction and pressure, but easily removable when needed. The textile carrier material maintains firm attachment during corrugator operation through operational heating and tension, yet can be quickly removed when replacement is required.
3Reliability
If adhesive bonding is used to attach drum lining, then secure attachment is achieved, but process complexity increases
Solution Approach 1:
The adhesive bonding system is completely removed from the drum lining structure. The lining is attached through simple friction and pressure between the textile carrier and drive drum surface, eliminating the need for adhesive application processes, curing time, and associated complexity.
Solution Approach 2:
The drum lining attaches itself to the drive drum through friction and pressure during normal corrugator operation. The operational heating and tensioning of the drive drum automatically secure the textile carrier in place without requiring external adhesives or complex bonding processes.
4Duration of action of stationary object
If rubberized drive drums are used, then durability is improved, but replacement cost increases
Solution Approach 1:
The drum lining system is segmented into a replaceable textile carrier layer that can be independently replaced without replacing the entire drive drum. This allows the expensive rubberized drive drum to be retained and reused, while only the worn textile lining is replaced, significantly reducing replacement costs.
Solution Approach 2:
The textile carrier drum lining is designed to be discarded when worn, while the expensive rubberized drive drum is recovered and reused. This separation allows economical replacement of only the consumable lining component while maintaining the durable drive drum for continued use.
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
Enables quick and safe application and removal of drum linings, reducing downtime and health risks, with enhanced durability and wear resistance, as the second coating's stickiness increases during operation and decreases upon cooling, allowing for easy replacement without residue.
Implementation Method 1
a second coating, with a glass transition temperature in the range from -20° C. to 60° C.
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
A drum lining (20a-c) for a drive drum (12) of a corrugated board machine has a textile carrier layer (21) which has a first coating (22) on one side and a second coating (23) on the other. The second coating (23) has a glass transition temperature in the range of -20°C to 60°C.