Segmented Liquid Coating for Variable-Width Recess Filling
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Solution Overview
Problem
Existing methods fail to maintain an appropriate application amount of liquid material when the width of a recessed application area changes between the start and end points of the application route, leading to quality issues.
Innovation Solution
A method and apparatus that segment the application route into segments based on position coordinates, adjust application parameters for each segment, and apply liquid material while moving the discharge device along the segmented route, accounting for changes in application area width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If liquid material is discharged under constant conditions along the application route, then the discharge process is simple and stable, but the application amount becomes excessive or insufficient at portions where the application area width changes, leading to quality deterioration
Solution Approach 1:
The application route is divided into multiple segments based on position coordinates, and the application area width is calculated for each segment. This segmentation allows the discharge amount to be adjusted according to the actual width variations at different portions of the route, ensuring appropriate application amounts while maintaining manageable control complexity through systematic division.
Solution Approach 2:
The discharge amount is dynamically adjusted for each segment based on the calculated application area width. Instead of using a constant discharge rate, the system varies the discharge parameters according to the specific width requirements of each segment, thereby adapting to width changes along the application route and ensuring consistent application quality.
2Quantity of substance
If the application amount is increased to ensure sufficient filling in wider portions, then filling adequacy is improved, but excess liquid material is applied in narrower portions, causing waste and quality issues
Solution Approach 1:
The discharge amount is customized for each segment based on its specific application area width. Wider portions receive increased discharge amounts to ensure sufficient filling, while narrower portions receive reduced discharge amounts to prevent excess. This localized adjustment of material quantity ensures both adequate filling and precise control, eliminating the trade-off between sufficiency and precision.
3Adaptability or versatility
If the application route is adjusted to accommodate component position variations, then adaptability is improved, but the complexity of route determination increases
Solution Approach 1:
The system acquires position coordinates of components and uses this feedback information to determine the application route and calculate segment widths. By incorporating real-time position data into the route planning, the system adapts to component position variations automatically, while the systematic feedback mechanism keeps the complexity manageable through structured data processing.
Data Source
AI summary
Problem: To solve a problem of deterioration in application quality that occurs in a case where a width of a recessed application area changes between a start point and an end point of an application route. Solution: Provided is a liquid application method for filling, with liquid material, an application area made up of gaps between an inner wall surface of a recess 201 of a workpiece 111 and outer peripheries of components 202, 203 disposed in the recess 201, the application method including: a position acquisition step of acquiring position coordinates of the components 202, 203 based on captured images including feature portions of the components 202, 203; an application route setting step of setting, based on the position coordinates, an application area and an application route for a discharge device 102 to perform application; an application parameter setting step of segmenting the application route of the discharge device 102 into application route segments based on the position coordinates and setting an application amount for each application route segment; and an application step of applying the liquid material to the application area while moving the discharge device 102 along the application route. Also provided is a liquid application apparatus that executes the liquid application method.