Supplier and Process Quality Audit for Plastic Injection Molding: Deployment and Upgrade

This category covers end-to-end injection molding processes. Data sources include resin batch property sheets, injection molding machine operating

Data profile for this category

This category covers end-to-end injection molding processes. Data sources include resin batch property sheets, injection molding machine operating parameters, mold temperature controller data, workshop MES systems, and dimensional and appearance inspection equipment. Daily documents include injection molding process cards, raw material drying records, mold histories, first-piece inspection forms, patrol inspection logs, and material change and machine cleaning records.

Data updates are triggered by production batches, mold changes, material swaps, and shift operations. Fields include raw material batch numbers, drying temperatures, holding pressures, cooling durations, and corresponding units: degrees Celsius, seconds, megapascals.

Constraints during deployment and upgrade

Multi-source heterogeneous production data access requires adaptation to protocols and data formats of different devices. Reserve dedicated data parsing nodes during deployment to support upload of various parameter sets. Frequently updated production data requires the deployed knowledge base system to support low-latency synchronization. Optimize incremental update logic during upgrades to avoid overwriting audit data from historical batches.

Uniform validation rules must be configured for unit and format requirements of specific fields. This prevents audit logic failures for defects such as shrinkage and short shots caused by format mismatches. Mixed indexing for multiple document types must adapt to different structures of process cards, records, and other document formats. Adjust indexing strategies during upgrades to match differences in document lengths, ensuring retrieval accuracy.

Configuration settings

Configuration ItemRecommended SettingRationale
DB_MAX_LINK100–150 connectionsAdapts to concurrent connection demands for multi-source data, preventing data synchronization interruptions caused by insufficient connection counts
MONGODB_URIDedicated database address pointing to workshop production dataIsolates production data from other business data, ensuring accuracy of data sources for audit logic
REDIS_URLConfigured as a local cache node address, with cache duration set to 300 secondsReduces response time for high-frequency queries, supporting high-volume audit data calls during shifts
STORAGE_S3_ENDPOINTBound to the object storage endpoint for workshop document storageUnifies management of indexing and reading for documents such as injection molding process cards and drying records
FE_DOMAINConfigured as the access domain name of the internal audit systemEnsures document links referenced by the knowledge base work normally in audit scenarios

Three common misconfigurations

  • Symptom: PDF parsing times out, but parsing service logs indicate success. Cause: STORAGE_S3_ENDPOINT is not configured to point to workshop document storage. The knowledge base cannot pull PDF files such as injection molding process cards normally, triggering the timeout logic.
  • Symptom: Docker-deployed services display abnormal prompts every 30 minutes, and recover after restart. Cause: Connection parameters for the cache node configured in REDIS_URL are incorrect. Session cache fails periodically, triggering service exception alerts.
  • Symptom: After upgrading to FastGPT v4.17.0, the system still shows the old version number. Cause: The front-end static resource package was not updated, or FE_DOMAIN is configured to point to the deployment directory of the old version. Version verification fails as a result.

How to verify correct configuration

  • Run a multi-source data synchronization test. Check whether injection molding machine parameters and mold temperature controller data can be imported into the knowledge base normally. Confirm the validity of connections for MONGODB_URI and REDIS_URL.
  • Upload a PDF file of an injection molding process card. Verify that parsing and indexing work normally. Confirm that STORAGE_S3_ENDPOINT is configured correctly.
  • Trigger a supplier quality audit process. Check whether referenced document links can be accessed normally. Confirm that FE_DOMAIN is configured correctly.
  • Check the system version log. Confirm that the FastGPT v4.17.0 version identifier has been loaded. Verify that the upgrade operation took effect.

The values given are common starting points and should be measured against the reader's own samples.