Sheet Folding Device Guide Member Position Adjustment
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Solution Overview
Problem
Conventional sheet folding devices require complex mechanisms and increased components to adjust folding positions, leading to distortions in the transport path and potential wrinkles, as they alter the length of the folding position and transport distance.
Innovation Solution
A sheet folding device with a position adjustment unit that adjusts the guide member's position using a pivot point axis, allowing for varying exposure of the folding roller without changing the transport path shape, and includes a driving unit to rotate the guide member for precise gradient adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the transport path guide plates are separately moved to adjust the gradient of the folding position, then the folding position gradient can be adjusted, but the transport path shape is distorted, wrinkles may occur, and the mechanism becomes complicated
Solution Approach 1:
The guide plate is divided into a fixed portion and a movable portion. The movable portion can be independently adjusted to change the gradient of the folding position, while the fixed portion maintains the overall transport path stability. This segmentation allows gradient adjustment without distorting the entire transport path shape.
Solution Approach 2:
The guide plate incorporates a movable portion that can be dynamically adjusted during operation. This movable portion is positioned and sized to affect only the folding position gradient while leaving the rest of the transport path unchanged, enabling dynamic adjustment without complexity.
2Manufacturing precision
If the whole guide plate is moved to adjust the folding position gradient, then the gradient can be changed, but the transport path shape is distorted and wrinkles may occur
Solution Approach 1:
The guide plate is segmented into fixed and movable portions. Only the movable portion is adjusted to achieve the desired folding position gradient, while the fixed portion maintains the transport path shape. This prevents distortion and wrinkles by isolating the adjustment to a minimal area.
Solution Approach 2:
The adjustment is localized to a specific movable portion of the guide plate rather than moving the entire guide plate. This local adjustment changes the folding position gradient without affecting the overall transport path shape, preventing wrinkles and distortion in other areas.
3Manufacturing precision
If the folding roller is tilted according to the sheet to adjust the folding position, then the gradient can be adjusted, but the number of components increases and the mechanism becomes very complicated
Solution Approach 1:
Instead of tilting the entire folding roller assembly, the guide plate is segmented with a movable portion that can be independently adjusted. This approach achieves gradient adjustment by moving a small component rather than reconfiguring the entire folding mechanism, significantly reducing complexity.
Solution Approach 2:
The movable portion of the guide plate provides dynamic adjustment capability for the folding position gradient. This simple dynamic element replaces complex tilting mechanisms, achieving the same functional result with fewer components and simpler structure.
Data Source
AI summary
A sheet folding device includes a transport unit that transports a sheet; an abutting unit that abuts an end of the sheet being transported to form a bent portion at the sheet; a folding unit that nips the bent portion of the sheet by a pair of folding rollers to form a fold line in the sheet; a guide member that partially covers the folding roller and guides the sheet; and a position adjustment unit that adjusts a position of the guide member. An exposure amount of the folding roller with respect to the sheet can be varied by adjusting the position of the guide member through the position adjustment unit.