Transparent Tab Guide for Shadow-Free Electrode Sheet Inspection
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Solution Overview
Problem
Conventional electrode sheet defect inspection devices suffer from inspection errors due to shadows formed by the tab guide, leading to incorrect identification of defects in the tab parts of electrode sheets.
Innovation Solution
The electrode sheet defect inspection device incorporates a tab guide part with transparent regions in its openings to prevent shadows, ensuring accurate defect inspection by using upper and lower guide members with transparent components to expose tab parts for clear visibility during the inspection process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a tab guide part is used to guide the tab part during inspection, then the tab part can be properly positioned and guided, but shadows are formed that cause inspection errors
Solution Approach 1:
The tab guide part is made transparent instead of opaque, changing its optical properties from blocking light to allowing light transmission. This eliminates the shadow formation while maintaining the guidance function for the tab part during inspection.
Solution Approach 2:
A transparent member is introduced as an intermediary component between the light source and the tab part. This transparent member serves as the guiding structure while simultaneously allowing light to pass through, mediating between the need for mechanical guidance and optical transparency.
2Measurement precision
If the tab guide part is made transparent to prevent shadows, then inspection accuracy is improved, but the structural strength and guidance capability may be compromised
Solution Approach 1:
The tab guide part uses a composite structure combining a transparent member (such as transparent resin or glass) with supporting elements. This composite approach provides both the required optical transparency for shadow-free inspection and sufficient structural strength for effective tab part guidance.
Solution Approach 2:
Different regions of the tab guide part have different properties: the light-transmitting regions are made transparent for inspection accuracy, while specific structural regions maintain adequate strength and rigidity for guidance functionality. This local differentiation of material properties resolves the contradiction between transparency and strength.
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
This design prevents shadows during defect inspection, reducing errors and improving the accuracy of identifying defective marks on electrode sheets.
Implementation Method 1
a tab guide part disposed to pass the tab part of the electrode sheet passing through the marking part, having an opening for exposing a partial region of the tab part during traveling to the outside, and provided so that a partial region surrounding the opening is transparent
Data Source
AI summary
An electrode sheet defect inspection device includes a vision inspection part configured to inspect defects in each tab part during a traveling process of an electrode sheet on which a plurality of tab parts is formed; a marking part configured to print a defective mark on a selected tab part in response to the tab part being determined to be defective, based on inspection information of the vision inspection part; a tab guide part configured to pass the tab parts when the electrode sheet passes through the marking part and a mark inspection part configured to inspect the defective mark printed on the tab part exposed to an outside through the opening of the tab guide part. The tab guide part has an opening for exposing a partial region of the tab parts traveling to the outside, and the tab guide part includes a transparent region adjacent to the opening.