Sheet Folding Apparatus with Central Pressing Force Control
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Solution Overview
Problem
Conventional sheet folding technologies face challenges in uniformly enhancing fold lines, particularly at the central part of the sheet, due to insufficient resistance against resilience, leading to incomplete pressing and reduced productivity.
Innovation Solution
A sheet processing apparatus is designed with a sheet supporting unit and a pressing unit that generates a pressing force along the fold line, ensuring uniform pressing across the sheet, including at the central part, using a fold-enhancing roller and a sheet supporting plate to effectively enhance the fold line.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If conventional fold-enhancing apparatus is used, then fold lines at both ends can be sufficiently pressed, but fold lines at the central part cannot be sufficiently pressed due to bending of the roller and supporting plate
Solution Approach 1:
The fold-enhancing apparatus is divided into a first fold-enhancing apparatus for the leading end and a second fold-enhancing apparatus for the trailing end, with each apparatus independently pressing fold lines at its respective location. This segmentation allows each apparatus to focus on a specific region, eliminating the bending problem that occurs in conventional single-structure apparatus when pressing central fold lines.
Solution Approach 2:
A pressing force generating unit is introduced as an intermediary component between the fold-enhancing roller and the sheet supporting plate. This unit applies a pressing force in the pressing direction to prevent the roller and supporting plate from bending in the opposite direction when resilience is received, thereby enabling sufficient pressing force to be applied to central fold lines.
2Manufacturing precision
If pressing force is applied to enhance fold lines, then fold line enhancement is achieved, but the structure becomes complex to accommodate multiple pressing mechanisms
Solution Approach 1:
The pressing apparatus is segmented into functionally independent first and second fold-enhancing apparatus, each with its own fold-enhancing roller, sheet supporting plate, and pressing force generating unit. This segmentation allows each module to be simpler in design while collectively achieving comprehensive fold line enhancement across the entire sheet.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus achieves uniform pressing force distribution, enhancing fold lines effectively and improving productivity by preventing bending and ensuring sufficient pressing force across the entire sheet area.
Implementation Method 1
a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit
Implementation Method 2
when a fold line is pressed, resilience is generated from the sheet in response to the pressing force
Data Source
AI summary
A sheet processing apparatus is configured to press a fold line that is formed on a sheet. The sheet processing apparatus includes: a sheet supporting unit configured to support the sheet in a pressing direction for pressing the fold line; a pressing unit configured to press the fold line that is formed on the sheet that is supported by the sheet supporting unit; and a pressing-force generating unit configured to generate a pressing force for pressing the sheet supporting unit against the pressing unit at a central part in a direction along which the fold line is formed.