Box Making Machine Drive Diagnosis With Segmented Abnormality Detection
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Solution Overview
Problem
Box making machines face challenges in accurately monitoring and diagnosing the operation states of their drive devices due to variations in motor capacities, directions, locations, and manufacturers, making it difficult to detect abnormalities in drive states with high precision.
Innovation Solution
A production machine diagnosing system that includes a data collecting unit to gather operation data from multiple drive devices and a diagnosing unit to detect abnormalities, with separate units for the first drive device that transfers sheets and the second drive device, allowing for high-accuracy diagnosis by optimizing the timing of detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If multiple drive devices with different motor capacities, drive directions, disposition locations, drive times, and manufacturing companies are monitored using a single monitoring method, then the monitoring system is simple, but the diagnosis accuracy is insufficient
Solution Approach 1:
The patent divides the monitoring system into separate first and second diagnosing units, each specialized for specific drive devices. The first diagnosing unit monitors drive devices that transfer sheets, while the second diagnosing unit monitors other drive devices. This segmentation allows each unit to be optimized for its specific monitoring tasks, improving diagnosis accuracy without requiring a completely complex unified system.
Solution Approach 2:
The patent applies different monitoring approaches tailored to specific drive devices based on their characteristics. Drive devices transferring sheets receive specialized monitoring through the first diagnosing unit, while other drive devices are monitored by the second diagnosing unit. This local optimization ensures each drive device is monitored with the appropriate method for its specific function and characteristics.
2Measurement precision
If drive devices are monitored simultaneously without separate diagnosis units, then the monitoring process is simple, but abnormality detection accuracy is reduced due to interference between devices
Solution Approach 1:
The patent segments the diagnosis system into distinct first and second diagnosing units that operate independently. The first diagnosing unit processes operation data from drive devices transferring sheets, while the second diagnosing unit processes data from other drive devices. This segmentation eliminates interference between different drive device monitoring processes, allowing each unit to detect abnormalities with higher accuracy.
3Measurement precision
If a single diagnosing unit monitors all drive devices, then the system structure is simple, but the timing of detection cannot be optimized for different devices
Solution Approach 1:
The patent creates separate first and second diagnosing units that can independently optimize their detection timing for different drive devices. The first diagnosing unit can be tuned to detect abnormalities in sheet-transferring drive devices at optimal moments in their operational cycle, while the second diagnosing unit optimizes timing for other drive devices. This segmentation enables precise timing optimization without compromising system manageability.
Data Source
AI summary
This production machine diagnosing system and method, box making machine, and remote monitoring system include a data collecting unit for collecting operation data of a plurality of drive devices, and a diagnosing unit for detecting an abnormality on the basis of the operation data of the plurality of drive devices collected by the data collecting unit, wherein the diagnosing unit comprises: a first diagnosing unit which, when a first drive device among the plurality of drive devices, for driving an apparatus that conveys a sheet, is driven, detects an abnormality on the basis of the operation data of the first drive device; and a second diagnosing unit which, when a second drive device other than the first drive device, among the plurality of drive devices, is driven, detects an abnormality on the basis of the operation data of the second drive device.