Viscous Fluid Spray Control via Weight-Based Flow Estimation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The dynamic behavior of spray application systems for viscous fluids is challenging due to high viscosity, leading to imprecise determination of process parameters, which affects the uniformity and width of the applied material strip, and existing measurement methods can be complex and time-consuming, introducing inaccuracies.
Innovation Solution
A system that uses a balance to continuously determine the weight of the applied viscous fluid, generating a weight profile, and a computing device to actuate the application system with changed input parameters, correlating weight and volume flow profiles to optimize process parameters for improved control, avoiding direct volume flow measurement that could influence the application system's dynamics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If direct volume flow measurement is used to determine process parameters, then measurement precision is improved, but device complexity and influence on system dynamics increase
Solution Approach 1:
The patent uses weight measurement as an intermediary parameter to indirectly determine volume flow. Instead of directly measuring volume flow with complex flow meters, the system measures the weight of applied material and converts it to volume flow using density information. This intermediary approach simplifies the measurement system while maintaining accuracy.
Solution Approach 2:
The patent replaces mechanical volume flow measurement devices with a weight-based measurement system. By using a weight sensor to measure the applied material and calculating volume flow from weight and density, the system avoids complex mechanical flow measurement mechanisms and their associated dynamics.
2Manufacturing precision
If filter parameters are optimized to improve dynamic behavior, then manufacturing precision of applied strip is improved, but loss of time in parameter determination increases
Solution Approach 1:
The patent implements feedback by continuously measuring the weight of applied material and using this information to adjust and optimize filter parameters in real-time. The system monitors the actual applied strip characteristics and feeds this information back to the control system, which then adjusts parameters to maintain optimal performance without requiring extensive pre-determination time.
Solution Approach 2:
The patent performs preliminary characterization of the application system's dynamic behavior during the setup phase, storing this information for later use. By pre-determining system characteristics such as response times and transfer functions, the system can quickly adapt to different operating conditions without repeating time-consuming measurements during production.
3Adaptability or versatility
If input parameters are changed to adapt to different application requirements, then adaptability is improved, but dynamic fluctuations in volume flow increase
Solution Approach 1:
The patent explicitly models and utilizes the dynamic behavior of the application system through transfer functions that describe how input parameters affect volume flow over time. By incorporating dynamic compensation algorithms, the system can change input parameters adaptively while predicting and compensating for the resulting dynamic fluctuations, thereby maintaining volume flow stability despite parameter changes.
Data Source
AI summary
A system is disclosed for determining process parameters for the spray application of viscous fluids, which can include an application system, which can be actuated by predefining input parameters, for a viscous fluid having at least the components of metering device, fluid valve and application nozzle. The dynamic behavior of the application system can be dependent, with respect to the volume flow profile of the viscous fluid during the application, and also on predefinable control process parameters. Methods are disclosed for determining and applying process parameters for the spray application of viscous fluids with a system, and for controlling the spray application of an application system, which can be actuated by predefining input parameters, for a viscous fluid.