Sheet Processing Apparatus Fold Line Flattening Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing sheet processing apparatuses face challenges in properly performing fold line processing on thick sheet bundles due to excessive operation load exceeding the driving force of the motor, leading to improper processing and potential erroneous failure detection.
Innovation Solution
A sheet processing apparatus with a folding unit, conveying unit, processing unit, first acquisition unit, second acquisition unit, and determination unit that acquires and adjusts pressing strengths and processing positions based on sheet bundle information to ensure proper flattening processing, preventing excessive operation load and ensuring accurate processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a large amount of pressure is applied to the fold line portion during flattening processing, then the fold properties are improved, but the operation load exceeds the motor driving force causing the unit to be incapable of moving
Solution Approach 1:
The patent makes the pressing strength dynamic by adjusting it based on sheet bundle thickness. The control unit acquires thickness information and selectively applies different pressing strengths from a plurality of predetermined pressing strengths, allowing the system to adapt to varying load conditions and prevent motor overload while maintaining effective fold line processing.
Solution Approach 2:
The patent changes the pressing strength parameter based on sheet bundle thickness. By acquiring thickness information and selecting appropriate pressing strength levels, the system optimizes the pressing parameter to match the actual work conditions, ensuring effective processing without exceeding motor capabilities.
2Manufacturing precision
If the sheet bundle thickness is large, then more pressing strength is needed for effective flattening, but the operation load becomes larger than the driving force from the motor
Solution Approach 1:
The system dynamically adjusts pressing strength based on measured sheet bundle thickness. By acquiring thickness information and selecting from multiple predetermined pressing strength levels, the control unit optimizes the power application to match the actual resistance, ensuring effective flattening of thick bundles without causing motor overload.
Solution Approach 2:
The patent implements a feedback mechanism where the control unit acquires sheet bundle thickness information and uses this feedback to select the appropriate pressing strength. This closed-loop control ensures that the pressing power matches the actual work requirements, preventing both insufficient processing and motor overload.
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
Enables proper fold line processing at the correct position for sheet bundles of varying thickness, preventing operational failures and ensuring accurate processing without erroneous detection.
Implementation Method 1
a processing unit configured to move along a fold line portion of the sheet bundle conveyed to the processing position by the conveying unit, while pressing the fold line portion from a direction orthogonal to a thickness direction of the sheet bundle, to thereby perform flattening processing for flattening the fold line portion
Data Source
AI summary
A sheet processing apparatus that is capable of properly performing fold line processing at a position depending on a sheet bundle. In a sheet processing apparatus, sheets sequentially received from an image forming apparatus are stacked on a bookbinding processing tray to form a sheet bundle. The sheet bundle is folded at the center thereof, and is conveyed to a processing position. A press unit moves along a fold line portion of the sheet bundle to thereby perform flattening processing for flattening the fold line portion by pressing the fold line portion from a direction orthogonal to a thickness direction. A first pressing strength set by a user using the image forming apparatus and the second pressing strength acquired information on the sheet bundle are compared with each other, and the processing position is determined based on a result of the comparison.