Sheet Processing Apparatus Dual-Mode Folding Control
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Solution Overview
Problem
Existing sheet processing apparatuses face challenges in improving productivity and processing accuracy, particularly in handling sheets of varying sizes and numbers, where deviations in sheet alignment and folding accuracy can lead to inefficiencies and suboptimal results.
Innovation Solution
A sheet processing apparatus equipped with a regulation portion, position adjustment portion, and a control system that allows for two modes of operation: one without position adjustment for high-accuracy folding and another with adjustment for improved productivity, utilizing a folding unit, regulating stoppers, and a paddle wheel to manage sheet alignment and folding, ensuring precise folding even with deviations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If position adjustment is performed on sheets before folding, then processing accuracy is improved, but productivity decreases due to additional adjustment time
Solution Approach 1:
The patent implements a dual-mode operation system where the sheet processing apparatus can dynamically switch between first mode (without position adjustment) for high productivity and second mode (with position adjustment) for high accuracy. The control portion automatically selects the appropriate mode based on sheet conditions, allowing the system to adapt its processing approach rather than being fixed in one operational state.
Solution Approach 2:
The invention changes the operational parameters of the apparatus by introducing two distinct processing modes with different levels of position adjustment. In the first mode, position adjustment is disabled to maximize speed, while in the second mode, position adjustment is enabled to maximize accuracy. This parameter change allows the system to optimize performance based on specific processing requirements.
2Productivity
If position adjustment is skipped for high- speed processing, then productivity is improved, but sheet alignment accuracy deteriorates
Solution Approach 1:
The control system dynamically adjusts the processing approach by selecting between two modes. When sheets are conveyed with small deviations, the system operates in first mode without position adjustment, maintaining high productivity. When larger deviations are detected or accuracy is prioritized, the system switches to second mode with position adjustment, ensuring proper alignment.
Solution Approach 2:
The invention applies partial position adjustment only when necessary. In the first mode, position adjustment is partially applied (skipped) to maintain speed, while in the second mode, full position adjustment is applied to ensure accuracy. This selective application of adjustment based on actual needs optimizes the balance between productivity and precision.
3Adaptability or versatility
If the apparatus handles sheets of varying sizes and numbers, then versatility is improved, but maintaining consistent folding accuracy becomes more difficult
Solution Approach 1:
The dual-mode system allows the apparatus to dynamically adapt to different sheet conditions. For sheets with consistent dimensions and small deviations, the first mode maintains high speed and consistent accuracy. For sheets with varying sizes or larger deviations, the second mode provides the necessary position adjustment to maintain folding accuracy consistency across diverse sheet types.
Solution Approach 2:
The apparatus achieves multi-functionality by incorporating both first mode (no position adjustment) and second mode (with position adjustment) operations within a single system. This universal design allows the same apparatus to handle various sheet sizes, quantities, and alignment conditions effectively, switching between modes as needed to maintain performance.
Data Source
AI summary
Provided is a sheet processing apparatus, including: a regulation portion configured to contact with an end edge of a sheet to be conveyed and to regulate a position of the sheet; a position adjustment portion configured to perform position adjustment on a sheet in a direction along an end edge of the sheet of which the end edge is in contact with the regulation portion; a folding portion configured to perform folding processing on a sheet which has been regulated by the regulation portion; and a control portion configured to execute: a first mode of causing the folding portion to perform the folding processing on a sheet which has been regulated by the regulation portion, without causing the position adjustment portion to perform the position adjustment on the sheet; and a second mode of causing the position adjustment portion to perform the position adjustment with respect to the regulated sheet.