Rotating Disk Adhesive Application for Lightweight Panels
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Solution Overview
Problem
Existing methods for producing lightweight panels face challenges with adhesive application, including aerosol formation, high maintenance, and limited use to one-component or 2-component hotmelt adhesives, which hinder even distribution and continuous production.
Innovation Solution
The method involves applying adhesive to the cover layer using one or more rotating disks arranged horizontally or at a slight deviation, ensuring even distribution and minimizing aerosol release, allowing for continuous production with various adhesive types.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If adhesive is applied using rollers, then adhesive application is simple, but adhesive distribution is uneven and too much glue is applied
Solution Approach 1:
The adhesive application surface is segmented into multiple outlet openings distributed across the disk surface, allowing controlled discharge of adhesive at multiple locations simultaneously. This segmentation enables uniform adhesive distribution across the entire cover layer width while maintaining simple application mechanics through rotational motion.
Solution Approach 2:
The invention transitions from static adhesive application (rollers) to dynamic application using a rotating disk. The rotational motion dynamically distributes adhesive evenly across the cover layer, preventing both over-application and uneven distribution while maintaining operational simplicity.
2Manufacturing precision
If adhesive is applied using nozzles, then adhesive can be applied precisely, but aerosol formation occurs
Solution Approach 1:
The invention extracts the harmful aerosol generation mechanism by replacing nozzle-based spray application with direct contact discharge through outlet openings. Adhesive is applied in controlled amounts through the rotating disk surface, eliminating the atomization process that creates aerosols while maintaining precise application control.
Solution Approach 2:
The rotating disk with outlet openings provides a simple, low-maintenance adhesive application system that avoids complex nozzle systems. The disk surface can be easily cleaned or replaced, and the system operates without generating harmful byproducts, making it both economically and environmentally favorable.
3Strength
If adhesive is applied to ensure sufficient adhesion, then bonding strength is adequate, but adhesive amount increases
Solution Approach 1:
The rotating disk applies adhesive with locally optimized distribution through strategically positioned outlet openings. Adhesive is discharged precisely where needed on the cover layer, ensuring sufficient bonding strength at critical areas while minimizing total adhesive consumption through efficient local application rather than uniform over-application.
4Productivity
If traditional adhesive application methods are used, then production can proceed, but maintenance requirements increase
Solution Approach 1:
The rotating disk system is designed for minimal maintenance through its simple geometric structure with outlet openings that prevent adhesive accumulation. The disk can be easily cleaned by rinsing, and its robust design allows continuous operation without frequent maintenance interruptions, enabling the system to serve itself with minimal intervention.
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 approach achieves even adhesive distribution, reduces aerosol formation, and ensures sufficient adhesion with minimal maintenance, enabling continuous production of lightweight panels with high tensile strength using small adhesive amounts.
Implementation Method 1
The adhesive is applied to the top layer using at least one rotating disk located horizontally, preferably parallel to the top layer
Data Source
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AI summary
The subject matter of the invention is a method for producing lightweight building panels comprising at least one outer layer and a core layer adhesively bonded to the latter, the adhesive being applied to at least one outer layer, characterized in that the application of the adhesive is performed by means of a rotating disc, which is mounted horizontally or with a slight deviation from the horizontal of up to 15°, preferably parallel to the outer layer.