Selective Liquid Application for Faster Crimp Binding of Media Bundles
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Solution Overview
Problem
Existing medium processing apparatuses face decreased productivity due to the hydration process required for crimp binding, as they need to temporarily halt sheet conveyance for water application, affecting the retention of the bound state.
Innovation Solution
A medium processing apparatus with a conveyor, liquid applier, and crimper that selectively applies liquid to all or some media based on conveyance intervals, enhancing productivity and retention of the bound state.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If water is added to the sheet bundle before crimp binding, then the binding strength is improved, but the processing time increases due to the hydration process
Solution Approach 1:
The liquid applier applies water to the sheet bundle in advance before the crimp binding operation. This preliminary hydration action ensures that the sheets are sufficiently moistened before binding, improving binding strength without requiring additional processing time during the actual binding operation.
Solution Approach 2:
The liquid applier and crimper are integrated in the same processing station, allowing continuous operation where liquid application and crimp binding occur in sequence without interruption. This eliminates idle time between hydration and binding operations, maintaining continuous productive action.
2Strength
If water is added to each sheet individually after alignment, then the binding strength is improved, but the productivity decreases due to temporary halt in conveyance
Solution Approach 1:
The liquid applier is configured to apply water selectively to specific regions of the sheet bundle rather than requiring individual sheet processing. This segmentation approach allows water to be applied to the binding area of the entire bundle in one operation, eliminating the need to halt conveyance for each sheet.
Solution Approach 2:
The liquid application function is merged with the crimp binding function in a single integrated processing station. This combination allows both operations to occur in continuous sequence without interruption to the conveyance system, maintaining productivity while achieving effective hydration for binding.
3Strength
If liquid is applied to all media in the medium bundle, then the binding strength is maximized, but the liquid consumption and processing complexity increase
Solution Approach 1:
The liquid applier is configured to apply liquid selectively to specific regions of the medium bundle, particularly focusing on the binding area where crimp binding will occur. This localized application approach provides sufficient hydration for strong binding without the need to saturate the entire bundle, reducing liquid consumption and simplifying the processing system.
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
Enhances the productivity of crimping and binding multiple sheet-shaped media while maintaining a strong bound state by optimizing liquid application timing.
Implementation Method 1
The liquid applier applies liquid to the medium conveyed by the conveyor
Implementation Method 2
The crimper presses and deforms a medium bundle including at least one medium to which the liquid is applied by the liquid applier, to bind the medium bundle
Data Source
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AI summary
A medium processing apparatus (20) includes a conveyor (210, 220, 230, 250), a liquid applier (31), and a crimper (32). The conveyor (210, 220, 230, 250) conveys a medium. The liquid applier (31) applies liquid to the medium conveyed by the conveyor. The crimper (32) presses and deforms a medium bundle including at least one medium to which the liquid is applied by the liquid applier, to bind the medium bundle. The liquid applier (31) selectively performs application of the liquid to all media constituting the medium bundle or application of the liquid to only some of the media constituting the medium bundle, based on a conveyance interval at which the media are conveyed by the conveyor.