Post-Processing Pressing After Mounting to Reduce Sheet Curling
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing post-processing devices restrict the movement of sheets due to curling, leading to displacement and disorder during discharge and mounting on trays.
Innovation Solution
A post-processing device with a control section that manages a pressing section to perform leading-end and trailing-end pressing operations on sheets after mounting, adjusting the pressing position and timing based on sheet count and ejection amount to reduce curling and maintain order.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If the sheet is pressed by the leading-end pressing section during discharge, then curling is reduced, but the sheet movement is restricted causing displacement and disorder
Solution Approach 1:
The pressing section performs the pressing action after the sheet is discharged and mounted on the tray, rather than during discharge. This preliminary action (mounting first, then pressing) allows the sheet to be freely moved during discharge while still achieving curling reduction through subsequent pressing.
2Stability of the object's composition
If the pressing operation is performed early during discharge, then curling is suppressed, but sheet mounting order may be disrupted
Solution Approach 1:
The sheet is first mounted on the tray in the correct order, then the pressing operation is performed as a subsequent action. This sequence ensures that mounting order is established before any pressing occurs, preventing disruption while still achieving curling suppression.
3Ease of operation
If no pressing operation is performed, then sheet movement is free during mounting, but curling increases causing disorder
Solution Approach 1:
The sheet is first discharged and mounted freely on the tray without pressing, allowing easy movement during mounting. After mounting is complete, the pressing operation is then applied to reduce curling, thus achieving both free movement during mounting and curling reduction afterward.
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
Effectively reduces sheet curling and maintains orderly stacking, enhancing adjustment properties and throughput by minimizing sheet interference and disorder.
Implementation Method 1
a pressing section that performs a leading-end pressing operation of lowering a leading end of the medium by pressing the medium discharged by the first discharge section
Data Source
AI summary
A post-processing device includes a first discharge section that discharges a medium subjected to recording by a recording device, a first tray on which the medium discharged by the first discharge section is mounted, a post-processing section that performs post-processing on the medium mounted on the first tray, a pressing section configured to perform a leading-end pressing operation of lowering a leading end of the medium by pressing the medium discharged by the first discharge section, and a control section that controls the pressing section, in which the control section performs the leading-end pressing operation after the medium is mounted on the first tray.