A method for detecting defects in injection molded products

By setting up a three-axis coordinate system (xyz) on the injection-molded product for slicing and recording the defect coordinates, an inspection report is generated, which solves the problem of non-standard text descriptions in the defect inspection of injection-molded products and achieves fast and accurate defect location and report generation.

CN122199515APending Publication Date: 2026-06-12TONTEC PRECISION TOOLING (SUZHOU) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONTEC PRECISION TOOLING (SUZHOU) CO LTD
Filing Date
2026-04-15
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

In existing defect detection methods for injection molded products, non-standard text descriptions make defect location difficult, time-consuming, and difficult to quickly trace back to the cause.

⚗Method used

The injection-molded product is sliced ​​using an xyz three-axis coordinate system to record defect coordinates and generate a defect inspection report. By comparing CCD or manually captured images with the sliced ​​images, defect coordinates are recorded. A table is used to summarize the defect codes and coordinates and generate an inspection report.

🎯Benefits of technology

It achieves accurate and rapid defect location, eliminates the problem of non-standard text descriptions, and improves detection efficiency and report generation accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The defect detection method for injection molded products provided by this invention includes the following steps: S1. Classifying defects and assigning a numerical or alphanumeric code to each type of defect; S2. Setting up a three-axis coordinate system (xyz), placing the 3D image of the product into this coordinate system, and slicing it to obtain a sliced ​​image with multiple marker lines; S3. Taking pictures of the injection molded product and recording the defect codes; S4. Comparing the taken pictures with the sliced ​​images, recording the coordinates of the intersection points of the marker lines corresponding to the defects, and obtaining the defect coordinates; S5. Statistically calculating the defect coordinates corresponding to each defect code in a table, generating a defect detection report for the injection molded product. This method can eliminate the phenomenon of non-standard text descriptions and statistically calculate the defect coordinates corresponding to the defect codes, making it clear at a glance and allowing for quick tracing of the cause.
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