Eccentric Screw Resin Dispensing for Uniform Hollow Filler Coating
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Solution Overview
Problem
Existing application systems struggle with dispensing resins containing hollow fillers, particularly in achieving uniform application and maintaining low reaction forces in the cured product.
Innovation Solution
The application system incorporates a pressure-feed pump, leveling part, and applying valve, utilizing a rotary volumetric single-shaft eccentric screw pump to deliver viscous materials, and includes components like urethane (meth)acrylate and hollow fillers to achieve planar application with low reaction forces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional dispensing system is used to apply viscous material containing hollow fillers, then the material can be delivered, but the application uniformity deteriorates and reaction forces increase
Solution Approach 1:
The dispensing system is divided into multiple functional segments: a pressure feed pump for material delivery, a leveling part with multiple nozzles for uniform distribution, and an applying valve for controlled application. This segmentation allows each component to optimize its function, reducing overall reaction forces while improving application uniformity of viscous materials containing hollow fillers
Solution Approach 2:
The leveling part acts as an intermediary component between the pressure feed pump and the applying valve. It receives viscous material, levels the flow rate through its internal structure with multiple nozzles, and delivers uniformly distributed material to the applying valve, thereby reducing reaction forces and improving application quality
2Productivity
If the flow rate of viscous material is not leveled, then delivery speed is maintained, but application quality deteriorates
Solution Approach 1:
The pressure feed pump operates continuously to deliver viscous material at high speed, while the leveling part simultaneously performs flow rate leveling through its multi-nozzle structure. This continuous dual-action system maintains both high productivity and high application quality without interruption or trade-off
3Device complexity
If a simple pump structure is used, then device complexity is reduced, but flow rate leveling capability is lost
Solution Approach 1:
The system separates the pumping function from the flow leveling function into distinct components. The pressure feed pump maintains simple structure for ease of manufacture, while the leveling part with its multi-nozzle structure handles the complex flow rate leveling task, allowing each component to be optimized independently
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 system enables effective application of resins with hollow fillers, resulting in a cured product with low reaction forces and rapid curing, suitable for battery pack components.
Implementation Method 1
The dispenser delivers the viscous material leveled by the leveling part, and includes a structure of a rotary volumetric single-shaft eccentric screw pump
Data Source
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AI summary
To provide an application system suitable for dispensing a resin containing a hollow filler. The present invention includes a pressure-feed pump 100 capable of pressure-feeding a viscous material, a leveling part 200 that levels a flow rate of the viscous material delivered by the pressure-feed pump, a dispenser 300 that delivers the viscous material leveled by the leveling part, and includes a structure of a rotary volumetric single-shaft eccentric screw pump, and an applying valve 400 that applies the viscous material delivered from the dispenser in a planar form.