Sheet Reinspection Apparatus Speed Segmentation
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Solution Overview
Problem
Current sheet reinspection processes are inefficient due to high processing speeds and limited accuracy, leading to increased reinspection rates and potential misclassification of sheets.
Innovation Solution
A reinspection apparatus that operates at a lower speed than the sheet processing apparatus, utilizing higher resolution inspections and customizable thresholds to improve accuracy and reduce reinspection frequency, with modes for normal, check, and no-inspection counting processes to optimize sheet evaluation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the sheet processing apparatus operates at high speed to convey sheets, then productivity is improved, but measurement precision deteriorates due to sheet flapping and reduced inspection accuracy
Solution Approach 1:
The inspection process is segmented into two distinct stages: initial inspection at high speed by the sheet processing apparatus, and reinspection at low speed by the reinspection apparatus. This segmentation allows each stage to operate at optimal speeds for its specific function, resolving the contradiction between productivity and measurement precision.
Solution Approach 2:
The reinspection apparatus acts as an intermediary system that receives rejected sheets from the high-speed processing apparatus and performs detailed inspection at reduced speed. This intermediary stage enables accurate measurement without compromising the overall productivity of the primary processing system.
2Productivity
If the reinspection apparatus operates at high speed to maintain productivity, then productivity is improved, but measurement precision deteriorates due to increased sheet flapping
Solution Approach 1:
The reinspection apparatus dynamically adjusts its operating speed to be lower than the sheet processing apparatus, optimizing inspection accuracy for rejected sheets. This dynamic speed differentiation allows the system to prioritize measurement precision in the reinspection stage while maintaining overall system productivity through efficient high-speed initial processing.
Data Source
AI summary
According to one embodiment, a reinspection apparatus which reinspects rejected sheets rejected from sheet processing apparatus configured to convey sheets at first speed, to inspect conveyed sheet in accordance with first determination threshold, and to reject sheets in accordance with an inspection result, reinspection apparatus includes, conveying unit configured to convey taken sheets at second speed lower than first speed, inspection unit configured to inspect sheets conveyed at second speed, determination unit configured to determine whether to reject sheets, and counting unit configured to count sheets which have been determined not to be rejected.