Sheet Post-Processing Alignment Paddle Control for Stack Growth
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Solution Overview
Problem
Existing sheet post-processing devices face challenges in efficiently aligning and stapling sheets of varying types and ink usage, leading to inconsistent alignment and stapling quality.
Innovation Solution
The device incorporates a conveying member, processing tray, reference plate, alignment member, holder drive unit, and control unit to adjust the alignment paddle's position based on sheet characteristics and ink usage, ensuring consistent alignment and stapling across different sheet types and ink amounts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the alignment paddle maintains a fixed position, then the structure is simple, but alignment consistency deteriorates when the number of sheets increases or sheet types vary
Solution Approach 1:
The alignment paddle is transformed from a fixed component to a dynamically adjustable one. The control unit varies the acting position of the alignment paddle based on the number of sheets detected, ensuring consistent alignment performance across different sheet quantities and types without requiring complex manual adjustment mechanisms.
Solution Approach 2:
The position parameter of the alignment paddle is changed dynamically according to sheet conditions. The control unit adjusts the acting position (distance from the processing tray) based on sheet count, effectively changing the physical parameter of the alignment paddle to maintain optimal alignment under varying conditions.
2Manufacturing precision
If the alignment paddle contacts the sheet surface at a fixed position, then the mechanism is simple, but alignment quality deteriorates with varying ink usage and sheet types
Solution Approach 1:
The control unit adjusts the acting position parameter of the alignment paddle based on detected sheet characteristics and ink usage variations. This dynamic parameter change allows the system to adapt to different sheet types and ink amounts, maintaining high alignment quality across diverse conditions.
Solution Approach 2:
The system incorporates feedback control where the control unit receives information about sheet conditions (type, ink usage) and adjusts the alignment paddle position accordingly. This closed-loop approach ensures alignment quality is maintained by continuously adapting to varying sheet characteristics.
3Reliability
If the alignment paddle position is adjusted for each sheet condition, then alignment consistency is improved, but the control mechanism complexity increases
Solution Approach 1:
The control unit implements feedback control by detecting sheet conditions and automatically adjusting the alignment paddle position. This automated feedback mechanism ensures reliable alignment without requiring complex manual intervention, as the system self-adjusts based on real-time sheet information.
Solution Approach 2:
The alignment system performs self-adjustment through the control unit, which automatically modifies the alignment paddle position based on detected sheet conditions. This self-service capability eliminates the need for external manual adjustment while maintaining high alignment reliability across varying conditions.
Data Source
AI summary
A sheet post-processing device includes a conveying member, a processing tray, a processing section, a reference plate, an alignment member, a holder drive unit, and a control unit. The alignment member includes a paddle holder supported in a swingable manner along a carry-in direction, and an alignment paddle supported in a rotatable manner at a swinging end of the paddle holder. The holder drive unit moves the alignment paddle in a reciprocating manner, between a reference position to retreat the paddle part above a top sheet placed on the processing tray and an acting position to allow the paddle part to contact with a top surface of the sheet. When the number of the sheets carried in onto the processing tray is increasing, the control unit continuously moves the acting position of the alignment paddle in a direction separating from the processing tray.