Dispersion Feeder Defect Detection Through Batch Weight Feedback

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Solution Overview

Problem

Dispersion feeders in food product supply systems become inefficient due to dirt accumulation, leading to inaccurate measurements and undersupply, which affects the formation of batches meeting predefined criteria.

Innovation Solution

A method to identify defective dispersion feeders by measuring product at the feeder and batch measuring units, adjusting operations, and recalibrating the feeder based on measurements to maintain accurate product distribution.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the dispersion feeder operates continuously to supply product, then productivity is improved, but measurement precision deteriorates due to dirt accumulation affecting weight measurements

Engineering Contradiction:
Improvesystem efficiencyVSAvoidweight measurement accuracy
Core Design Contradiction:
ProductivityVSMeasurement precision

Solution Approach 1:

The system uses feedback from batch measuring units to monitor and identify dispersion feeder performance. By comparing expected versus actual product distribution, the system detects when the dispersion feeder becomes defective due to dirt accumulation, enabling timely intervention while maintaining continuous operation

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The dispersion feeder system performs self-diagnosis through the measurement feedback loop. The batch measuring units provide data that reveals the dispersion feeder's condition, allowing the system to identify defects without external inspection, thereby maintaining productivity while detecting measurement accuracy issues

Inventive Principle:
Principle #25Self-service

2Measurement precision

If the dispersion feeder is cleaned frequently to maintain measurement accuracy, then measurement precision is improved, but productivity deteriorates due to system downtime

Engineering Contradiction:
Improveweight measurement accuracyVSAvoidsystem efficiency
Core Design Contradiction:
Measurement precisionVSProductivity

Solution Approach 1:

The system performs preliminary identification of dispersion feeder defects by analyzing measurement data before complete failure occurs. By detecting early signs of dirt accumulation affecting measurements, the system can plan maintenance during scheduled downtime rather than causing unplanned production interruptions

Inventive Principle:
Principle #10Preliminary action

3Productivity

If the dispersion feeder accumulates dirt to maintain continuous operation, then productivity is improved, but reliability deteriorates due to undersupply of product

Engineering Contradiction:
Improvesystem efficiencyVSAvoidproduct supply reliability
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The feedback mechanism from batch measuring units continuously monitors product distribution accuracy. When dirt accumulation causes the dispersion feeder to undersupply product, the measurement discrepancies trigger an identification signal, allowing reliability issues to be detected and addressed while maintaining overall system productivity

Inventive Principle:
Principle #23Feedback

Data Source

PatentUS20250277689A1Methods of identifying defective dispersion feeders
Publication Date: 2025.09.04 ISHIDA EUROPE LTD
  • US20250277689A1 patent drawing
  • US20250277689A1 patent drawing
  • US20250277689A1 patent drawing

AI summary

A method of identifying a defective dispersion feeder in a system suitable for supplying food product from a supply position to a plurality of batch measuring units comprises supplying product to a dispersion feeder configured to receive product at the supply position and distribute the product towards each of the plurality of batch measuring units, operating the dispersion feeder to distribute the product towards each of the plurality of batch measuring units, repeatedly measuring the amount of product at the dispersion feeder using a dispersion feeder measuring unit and supplying additional product to the dispersion feeder based on said measurements, receiving product in at least some of the plurality of batch measuring units, measuring the product received in the plurality of batch measuring units, and outputting an indication that the dispersion feeder is defective based on the measurements of the product received in the plurality of batch measuring units.