Infrared Oven Curing Adhesives Selective Wavelengths
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Solution Overview
Problem
Manufacturing processes, such as shoe assembly, face challenges in achieving precise control of temperature and humidity for adhesive curing, leading to potential wastage and environmental impact due to suboptimal curing processes.
Innovation Solution
An energy-efficient infrared oven utilizing multiple spectral sources with adjustable peak wavelengths, power outputs, and spatial arrangements to precisely control curing parameters, including temperature, humidity, and air flow, allowing for optimized curing of adhesives and other materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional ovens are used for adhesive curing, then the curing process can be completed, but the temperature and humidity control is imprecise leading to material waste and environmental impact
Solution Approach 1:
The patent applies parameter changes by using multiple infrared sources with different peak wavelengths (e.g., 9.6 micrometers for water, 3.4 micrometers for organic solvents) to precisely control the curing parameters. This enables selective heating of different components based on their absorption characteristics, achieving precise temperature and humidity control during curing, which directly resolves the contradiction between curing effectiveness and material waste.
Solution Approach 2:
The patent implements local quality by directing specific wavelengths of infrared radiation to different components of the adhesive system. Each infrared source targets specific molecules (water, organic solvents, adhesive polymers) based on their absorption spectra, creating localized heating effects that precisely control the curing process without affecting the entire system uniformly, thereby reducing material waste while maintaining curing precision.
2Manufacturing precision
If multiple infrared sources with different peak wavelengths are used, then selective heating of different components is achieved, but the device complexity increases
Solution Approach 1:
The patent applies universality by designing a control system that manages multiple infrared sources with different peak wavelengths. The controller coordinates these multiple sources to achieve selective heating of different adhesive components, making the system multi-functional capable of targeting water, organic solvents, and polymers independently. This resolves the contradiction by organizing the complexity into a unified multi-functional system that provides precise selective heating control.
3Loss of energy
If traditional heating methods are used, then energy is consumed to heat the entire environment, but this is inefficient as energy is emitted at unnecessary wavelengths
Solution Approach 1:
The patent applies parameter changes by shifting from broad-spectrum heating to narrow-band infrared radiation at specific wavelengths matched to the absorption peaks of target molecules. By tuning the infrared sources to emit only at wavelengths absorbed by water (9.6 μm), organic solvents (3.4 μm), or polymers, the system eliminates energy waste at unnecessary wavelengths while maintaining effective heating, thus resolving the contradiction between energy efficiency and energy consumption.
Solution Approach 2:
The patent converts the previously harmful effect of broad-spectrum radiation (wasting energy at unnecessary wavelengths) into a beneficial selective heating mechanism. By matching infrared emission wavelengths to the absorption characteristics of specific adhesive components, the system transforms what was energy waste into targeted effective heating, directly addressing the contradiction between energy efficiency and consumption.
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 enhances adhesive performance, reduces material waste, and minimizes environmental impact by providing precise control over curing processes, resulting in higher-quality products and reduced energy consumption.
Implementation Method 1
a first plurality of infrared sources having a first peak wavelength that preferentially interacts with a first component of an adhesive
Implementation Method 2
a second plurality of infrared sources having a second peak wavelength that preferentially interacts with a second component of an adhesive
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
An oven may facilitate heating, curing, and/or drying processes for manufactured items, such as shoe parts, using multiple groups of infrared sources. Each group of infrared sources may comprise a plurality of sources having heating parameters, such as a peak wavelength, power, distance from items to be cured, number of infrared sources, etc. By staging different types of sources throughout an oven, different aspects of the curing process may be performed in an efficient fashion. Further, conditions within the oven such as temperature and relative humidity may be monitored and adjusted to optimize curing conditions.