Movable Folding Line Mechanism for Sheet Thickness Adaptation
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Solution Overview
Problem
Conventional sheet folding devices struggle to precisely fold sheets when the thickness or tension changes, as the fixed positions of folding lines restrict flexibility and accuracy.
Innovation Solution
A folding device with a movable second folding line forming portion relative to the first and third folding lines, allowing adjustment of the second folding line's position to accommodate varying sheet thickness and tension, ensuring precise folding by adjusting the folded state before forming the folding lines.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the folding lines are formed at fixed positions, then the device structure is simple and stable, but the folding precision deteriorates when sheet thickness or tension changes
Solution Approach 1:
The second folding line forming portion is made movable relative to the first and third folding lines, allowing dynamic adjustment of the second folding line position to accommodate changes in sheet thickness and tension, thereby maintaining folding precision without requiring complete redesign of the device structure
Solution Approach 2:
The invention allows changing the position parameter of the second folding line relative to the first and third folding lines, enabling adaptation to different sheet conditions (thickness, tension) while maintaining the overall folding mechanism structure
2Adaptability or versatility
If the second folding line position is fixed, then the device operation is simple, but the adaptability to different sheet conditions deteriorates
Solution Approach 1:
The second folding line forming portion can be moved along the conveying direction to adjust its position relative to the first and third folding lines, providing adaptability to different sheet thicknesses and tensions while maintaining a relatively simple operation through linear movement
3Manufacturing precision
If the folding lines are formed at fixed positions, then the device structure is stable, but the folding accuracy deteriorates when sheet thickness changes
Solution Approach 1:
The second folding line forming portion is designed to be movable rather than fixed, allowing it to adjust its position dynamically in response to changes in sheet thickness while maintaining stable operation through controlled movement along the conveying direction
Data Source
AI summary
A folding device includes a folding mechanism configured to form a first folding line extending from one widthwise end of a sheet, a second folding line extending obliquely from the other widthwise end of the sheet toward an end of the first folding line and a third folding line configured to reverse one widthwise part of the sheet such that one widthwise part of the sheet folded along the second folding line overlaps with another part. The folding mechanism includes a second folding member having a second folding line forming portion configured to form the second folding line. The second folding member is so attached to a conveying mechanism that the second folding line forming portion is movable with respect to the formation positions of the first folding line and the third folding line.