Automated Coating Adhesion Test Jig with Precision Cutting
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Solution Overview
Problem
Conventional coating adhesion strength test methods are unreliable due to manual cutting procedures that lack precision in cutting angle, pressure, and velocity, making them unsuitable for small or uneven surfaces, and prone to operator error.
Innovation Solution
A test jig with a base, sample carrier, displacement mechanisms, and cutting knife holder with load cell feedback to control cutting velocity and pressure, enabling precise and automatic cutting of a grid pattern on the coating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If manual cutting procedure is used, then operation simplicity is maintained, but cutting precision and test reliability deteriorate
Solution Approach 1:
The patent replaces the manual mechanical cutting system with an automated cutting mechanism. The cutting knife is mounted on a positioning mechanism that can be precisely controlled to move along X and Y directions, automatically achieving the grid pattern cutting without manual intervention. This substitution eliminates the imprecision of manual cutting while maintaining operational simplicity through automation.
Solution Approach 2:
The cutting mechanism is designed to be self-positioning and self-executing. The positioning mechanism automatically controls the cutting knife's movement and depth, and the system can independently complete the grid pattern cutting process without requiring continuous manual adjustment. This self-service capability ensures consistent cutting precision while simplifying the operator's role to merely initiating the process.
2Reliability
If automated cutting mechanism is introduced, then cutting precision and reliability are improved, but device complexity increases
Solution Approach 1:
The automated cutting device is segmented into independent functional modules: a positioning mechanism with X and Y direction controls, a cutting knife mounting structure, and a control system. Each module performs a specific function and can be adjusted or maintained independently. This segmentation reduces overall system complexity by making each component simpler and more manageable while collectively achieving high test reliability.
3Device complexity
If manual cutting is used, then device complexity is low, but adaptability to different sample surfaces deteriorates
Solution Approach 1:
The cutting mechanism incorporates dynamic adjustment capabilities through its positioning system. The cutting knife can be dynamically positioned at different locations and depths based on the sample's surface characteristics. The mechanism can adapt to various surface conditions including small areas and uneven surfaces by adjusting the cutting path and pressure, providing high versatility without requiring complex specialized equipment for each surface type.
Data Source
AI summary
A test jig for coating adhesion strength includes a base, a sample carrier, a first displacement mechanism and a second displacement mechanism mounted on the base, and a cutting knife holder equipped with two differently oriented cutting knives that is mounted between the second displacement mechanism and the sample carrier. The sample carrier, the first displacement mechanism and the second displacement mechanism can be driven to move such that the cutting knives can exert a constant pressure to cut the sample on the sample carrier.