Sheet Bundle Crimp Binding with Local Liquid Application
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Solution Overview
Problem
Existing medium processing apparatuses face challenges in maintaining the strength of crimp binding as the number of sheets increases, due to decreased deformation from pressure, and there is a need to enhance binding strength without using metal staples.
Innovation Solution
A liquid applier applies a liquid to a specific region of the sheet bundle, followed by a crimping process using serrated teeth to enhance binding strength, and a post-processing device performs additional processes on the liquid-applied region.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the number of media in the sheet bundle increases, then the binding capacity is improved, but the degree of deformation due to binding teeth pressure decreases, reducing crimping strength
Solution Approach 1:
The liquid is applied to the sheet bundle before the crimp binding process. This preliminary action prepares the media by enhancing its deformability and binding characteristics, ensuring that when the binding teeth apply pressure, the media can be effectively deformed and crimped even in large bundles, thereby maintaining crimping strength despite increased quantity of media
Solution Approach 2:
The invention changes the physical-chemical parameters of the media by applying liquid to it. The liquid modifies the surface properties and mechanical characteristics of the media, making it more susceptible to deformation under binding teeth pressure. This parameter change enables effective crimping of larger bundles without compromising binding strength
2Strength
If liquid is applied in advance to enhance binding, then crimping strength is improved, but sheet quality may deteriorate
Solution Approach 1:
The liquid is applied locally to specific regions of the sheet bundle that will undergo crimping, rather than uniformly across the entire sheet. This localized application enhances binding strength at the critical binding areas while minimizing liquid exposure to other regions, thereby preventing sheet quality deterioration in non-binding areas
Solution Approach 2:
The liquid acts as an intermediary substance between the binding teeth and the media. It facilitates the binding process by improving contact and deformability at the interface, while its controlled application and rapid evaporation or absorption prevent it from causing sheet deterioration, thus mediating between binding effectiveness and sheet quality preservation
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 combination of liquid application and crimping enhances the binding strength of sheet bundles, ensuring robustness even with multiple sheets, while avoiding the use of metal staples.
Implementation Method 1
a liquid application member (44) including a foam capable of containing the liquid and applying the liquid to a liquid application region in a part of at least one medium Pb of a bundle of sheets P
Data Source
AI summary
A medium processing apparatus includes a liquid applier and a post-processing device. The liquid applier includes a liquid application member including a foam containable a liquid to apply the liquid to a liquid application region in a part of at least one medium of a bundle of media. The post-processing device performs a given process on a post-processing region in the part of at least one medium having the liquid application region on which the liquid is applied by the liquid applier. The liquid applier applies the liquid to the liquid application region overlapped with at least a part of the post-processing region.