Closed-loop parameter adjusting method for injection molding process

By using the method of collecting and comparing injection molding data in the injection molding machine, the injection molding process parameters are automatically adjusted, and the problems of low efficiency and poor accuracy of manual parameter adjustment in the existing technology are solved, and the automatic closed-loop parameter adjustment of injection molding parameters is realized, which improves the consistency of product quality.

CN119704596APending Publication Date: 2025-03-28QINGDAO HAIER MOLDS
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Patent Information

Application Number
CN202510076312.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-01-17
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

The parameter adjustment of existing injection molding machines depends on manual experience, resulting in inconsistent parameter adjustment results, low efficiency, poor accuracy, and difficult to systematically manage.

Method used

The closed-loop parameter adjustment method of the injection molding process is adopted to collect real-time injection molding data through the mold intelligent terminal to form a real-time cavity pressure curve, compare it with the standard cavity pressure curve, and automatically adjust the injection molding process parameters to achieve closed-loop control.

Benefits of technology

It realizes automatic adjustment of injection molding parameters, consistent standards, simple quantification, reduces manual intervention, improves parameter adjustment efficiency and accuracy, and ensures consistency of product quality.

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Abstract

The invention discloses an injection molding process closed-loop parameter adjustment method which comprises the following steps: S1, collecting real-time injection molding data to form a real-time cavity pressure curve; s2, the mold intelligent terminal compares the real-time cavity pressure curve with the standard cavity pressure curve, compares feature point numerical values, calculates the difference between the real-time cavity pressure curve and the standard cavity pressure curve and judges the difference, and if the difference is within a preset range, injection molding continues to be conducted according to the current injection molding process parameters; if the difference is not within the preset range, executing the step S3; s3, the mold intelligent terminal automatically adjusts injection molding process parameters according to the difference and the injection molding process parameters corresponding to the current real-time cavity pressure curve and inputs the injection molding process parameters into the injection molding machine, and the injection molding machine carries out injection molding again; and S4, the steps S1-S3 are repeated until the difference between the real-time cavity pressure curve and the standard cavity pressure curve is within a preset range, and closed-loop control is formed. According to the invention, the injection molding process is digitalized, closed-loop control is realized, the efficiency is high, the precision is high, and the systematization degree is high.
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