Component Replenishment Prediction for Mounting Line Downtime Prevention
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Solution Overview
Problem
In component mounting lines, workers may fail to notice component shortages in a timely manner, leading to decreased facility operation rates due to unplanned apparatus stops without adequate component replenishment.
Innovation Solution
A component replenishment support method and system that predict component shortage times for each part feeder, select feeders for early warning and replenishment, and manage replenishment work end times to prevent facility downtime, utilizing a predictor, selector, and warning system to optimize component replenishment timing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If component replenishment work is performed based on real-time calculation and display of component shortage notice time to portable devices, then workers can be notified of component shortages, but workers may still fail to notice or respond in time, leading to apparatus stops and decreased facility operation rate
Solution Approach 1:
The system performs preliminary action by calculating and notifying component shortage times in advance before actual shortages occur. The management computer predicts component shortage times based on consumption speeds and notifies workers beforehand, allowing them to replenish components proactively. This prevents apparatus stops by ensuring components are replenished before depletion, directly resolving the contradiction between notification reliability and facility operation rate.
Solution Approach 2:
The system implements feedback by continuously monitoring component consumption speeds, updating predicted shortage times in real-time, and notifying workers of changing situations. The portable device displays updated shortage time information that reflects current consumption rates, creating a closed-loop feedback system that adapts to actual usage patterns and ensures timely replenishment actions.
2Ease of operation
If component replenishment work is performed in sequence of early component shortage time, then all part feeders can be replenished systematically, but replenishment work may extend beyond the warning start time, causing apparatus stops
Solution Approach 1:
The system applies preliminary action by notifying workers of component shortages before the actual depletion time. The management computer calculates predicted shortage times and provides advance warning, allowing workers to begin replenishment operations proactively. This ensures replenishment is completed before components are exhausted, preventing apparatus stops while maintaining systematic workflow.
Solution Approach 2:
The system implements preliminary anti-action by taking preventive measures against potential apparatus stops. The early warning notification system allows workers to counteract the impending component depletion before it causes operational disruption. By acting in advance rather than reactively, the system prevents the harmful effect of apparatus stops while maintaining orderly replenishment procedures.
3Ease of operation
If component shortage notice time is displayed on portable devices carried by workers, then workers receive mobile notifications, but the notification system lacks integration with the component mounting apparatus, reducing effectiveness
Solution Approach 1:
The management computer serves as an intermediary between the component mounting apparatus and the portable notification device. It collects consumption data from the mounting apparatus, calculates predicted shortage times, and transmits notifications to portable devices. This intermediary role bridges the information gap, maintaining real-time integration between the mounting system and worker notifications while preserving mobile accessibility.
Data Source
AI summary
Provided are a component replenishment support method, and a component replenishment support system of a component mounting line that are capable of preventing a decrease in facility operation rate due to component shortage, in which a component shortage time of each part feeder is predicted, a component replenishment work is started from the present time in a case where the component shortage time is earlier than the virtual work end time, a work end time of the work target selection feeders in sequence of early time by using the part feeder within the warning consideration start time as a target is predicted, and a worker is warned of the component replenishment to the selection feeder of which the work end time is within the warning start time, in a case where the selection feeder of which the component shortage time is earlier than the work end time is not present.