Bend Correction Method Selection for Paper Processing
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Solution Overview
Problem
Conventional post-processing apparatuses prioritize bend correction accuracy over productivity, leading to increased waiting times and decreased overall productivity in paper sheet processing.
Innovation Solution
A post-processing apparatus that selects an optimal bend correction method based on the required bend correction accuracy and productivity of the product, using a hardware processor to minimize the difference between post-processing time and correction time, incorporating a corrector for bend correction and a post-processor for further processing, and employing methods like CD alignment, roller registration, and steering to adjust bend correction accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a bend correction method is selected to maximize bend correction accuracy, then the bend correction accuracy is improved, but the overall productivity decreases due to increased waiting times between correction and post-processing steps
Solution Approach 1:
The system dynamically selects from multiple bend correction methods (registration rollers, steering rollers, or no correction) based on real-time evaluation of product requirements, paper characteristics, and productivity needs. This dynamic adaptation allows the system to optimize both accuracy and productivity for each specific processing scenario rather than using a fixed correction approach
Solution Approach 2:
The hardware processor changes the operational parameters by selecting different correction methods and adjusting correction strength based on product type, paper rigidity, and required accuracy. This parameter optimization enables the system to achieve sufficient bend correction without excessive correction time, thereby maintaining productivity while improving accuracy
2Adaptability or versatility
If multiple bend correction methods are available and selected based on product requirements, then the adaptability is improved, but the device complexity increases
Solution Approach 1:
The hardware processor uses feedback from product specifications, paper sheet characteristics, and processing requirements to automatically determine the appropriate bend correction method. This feedback-driven selection process simplifies the user interface while providing sophisticated multi-method correction capabilities, reducing the perceived complexity for operators
Solution Approach 2:
The post-processing apparatus integrates multiple bend correction methods (registration rollers, steering rollers, and correction by paper feeding) within a single universal system. This multi-functional design allows one apparatus to handle diverse product types and paper characteristics without requiring separate dedicated devices, thereby managing complexity through consolidation
Data Source
AI summary
A post-processing apparatus performs post-processing on a paper sheet conveyed from a previous stage side, and includes: a corrector that performs bend correction on the paper sheet, in accordance with one of a plurality of bend correction methods; a post-processor that performs the post-processing on the paper sheet subjected to the bend correction performed by the corrector; and a hardware processor that selects one of the plurality of bend correction methods, on the basis of a bend correction accuracy corresponding to a product to be created by the post-processing being performed by the post-processor, and a productivity of the product, wherein from the plurality of bend correction methods, the hardware processor selects a bend correction method that reduces a difference between a post-processing time required for the post-processor to perform the post-processing and a correction time required for the corrector to perform the bend correction on the paper sheet.