Dynamic Pressing Separation for Sheet Folding Efficiency
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Solution Overview
Problem
Existing sheet processing apparatuses face inefficiencies in pressing and folding processes due to fixed separation distances between pressing members, which do not adapt to varying fold section thicknesses, leading to suboptimal processing times and efficiency.
Innovation Solution
A sheet processing apparatus with a pair of pressing members that vary their reception and post-receding separation distances, with the post-receding separation being smaller than the reception separation, allowing for dynamic adjustment based on the fold section thickness to enhance processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a fixed separation distance is used between pressing members, then the structure is simple, but the processing efficiency is reduced due to inability to adapt to varying fold section thicknesses
Solution Approach 1:
The pressing members are designed with dynamic separation distance capability, where the post-receding separation distance is set smaller than the reception separation distance. This allows the system to adapt to varying fold section thicknesses dynamically, improving processing efficiency without requiring complex real-time adjustment mechanisms.
Solution Approach 2:
The invention changes the separation distance parameter between pressing members based on the processing stage. By setting different separation distances for reception (larger) and post-receding (smaller) phases, the system optimizes processing efficiency for different fold section thicknesses while maintaining structural simplicity.
2Ease of operation
If the pressing members maintain a larger separation distance, then the fold section can be easily received, but the processing time increases
Solution Approach 1:
The separation distance between pressing members is dynamically adjusted based on the processing phase. During reception, a larger separation distance facilitates easy insertion of the fold section. After pressing, a smaller post-receding separation distance reduces the time for the next processing cycle, thereby optimizing both ease of operation and processing time.
Solution Approach 2:
The pressing members perform periodic advancement and recession cycles. By setting different separation distances for different phases of the periodic cycle (reception phase with larger separation, post-receding phase with smaller separation), the system achieves both easy reception and reduced processing time through rhythmic optimization.
Data Source
AI summary
A sheet processing apparatus includes two pressing members and an advancing-receding unit. The pressing members nip and press against a fold section of a sheet. The advancing-receding unit causes the pressing members to repeatedly press against the fold section by causing at least one of the pressing members to advance to and recede from the other pressing member. The advancing-receding unit varies a reception separation amount and a post-receding separation amount from each other and sets the post-receding separation amount to be smaller than the reception separation amount. The reception separation amount is a separation amount by which the pressing members are separated from each other when the fold section is to be received between the pressing members. The post-receding separation amount is a separation amount by which the pressing members that have pressed against the fold section are separated from each other after receding from the fold section.