Component Dosing Control for Precise Mixture Ratio Correction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing methods for dosing components in mixtures lack precision, often resulting in deviations from the desired component ratio, especially with poorly flowing substances, leading to over-dosing or rejection of already weighed components.
Innovation Solution
A control device connected to scales and dosing systems adjusts the dosing of a target component and auxiliary substances to maintain precise ratios by dosing the target component to a target value and auxiliary components to lower target values, allowing for after-dosing adjustments based on actual weights and tolerance bands to ensure accurate mixing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If components are weighed to within given tolerances, then the weighing accuracy is improved, but the resulting ratio of components may still deviate from the nominal value
Solution Approach 1:
The control device receives actual weight values from the scales and uses this feedback to calculate the actual content of the target component. Based on this feedback, the system determines whether after-dosing is necessary to achieve the desired ratio, thereby resolving the contradiction between individual component accuracy and overall ratio precision
Solution Approach 2:
The system performs preliminary dosing of all components to within tolerances, then calculates the actual content before deciding whether after-dosing is needed. This preliminary action allows the system to assess the situation and apply corrections only when necessary, maintaining both efficiency and precision
2Manufacturing precision
If a component is rejected due to ratio deviation, then the manufacturing precision is improved, but the productivity is reduced
Solution Approach 1:
Instead of directly rejecting components, the system introduces an intermediary calculation step that determines the actual content and compares it to the desired content. This intermediary assessment allows for selective after-dosing rather than blanket rejection, preserving productivity while ensuring precision
Solution Approach 2:
The system changes the dosing parameters dynamically by determining new target values for after-dosing based on the calculated actual content. This parameter adjustment allows correction of ratio deviations without rejecting the originally dosed components, thereby maintaining productivity
3Manufacturing precision
If the target component is dosed to the desired nominal value, then the manufacturing precision is improved, but the auxiliary substances must be adjusted
Solution Approach 1:
The system implements dynamic control where the target values for auxiliary substances are adjusted based on the actual dosing results of the target component. This dynamic adaptation allows the system to maintain precision while managing complexity through automated recalibration rather than fixed rigid controls
Data Source
AI summary
The invention relates to a method for dosing a target component (20), wherein a dosing system (10) doses the target component (20) to a target value (Z20), which corresponds to a desired nominal value (S20soll), wherein an additional dosing system (12) doses at least one additional component (21, 22, 23) to be follow-on dosed, to a target value (Z21) of the component (21, 22, 23) to be follow-on dosed which is lower than a desired nominal value (S21soll) of the component (21, 22, 23) to be follow-on dosed, wherein an actual value (G20ist) of the target component (20) and at least one actual value (G21ist) of the component (21, 22, 23) to be follow-on dosed are then determined, a content (A) of the target component (20) then being calculated according to the actual value (G20ist) of the target component (20) and/or the actual value (G21ist) of the component (21, 22, 23) to be follow-on dosed and the content (A) being compared to a limit value (T) or tolerance band (T), at least the component (21, 22, 23) to be follow-on dosed being additionally dosed in the event of the limit value (T) or tolerance band (T) being exceeded.