Binding Processing Device with Asymmetric Needleless and Needle Binding Units
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Solution Overview
Problem
Existing binding processing devices face challenges in securely binding paper bundles without using staple needles, leading to issues with looseness and peeling, especially when subjected to exit rolls, and require efficient methods to distinguish and stack paper bundles effectively.
Innovation Solution
A binding processing device incorporating both needle binding and needleless binding units, with the needleless binding unit forming longer binding portions to prevent looseness and peeling, and an exit system that offsets paper bundles to enhance stacking stability and distinguishability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If needleless binding is used to avoid staple needles, then the device complexity is reduced and safety is improved, but the binding strength and resistance to looseness/peeling deteriorates
Solution Approach 1:
The binding process is divided into two distinct segments: a needleless binding unit that initially binds the paper bundle, and a needle binding unit that reinforces the binding. This segmentation allows each unit to perform its specialized function while collectively achieving strong, secure binding without requiring the complex mechanism of a single sophisticated binding device
Solution Approach 2:
The needleless binding unit performs preliminary binding action on the paper bundle before it reaches the needle binding unit. This preliminary action prepares the paper bundle by creating an initial binding structure that reduces loose sheets, making the subsequent needle binding more effective and reducing the overall complexity required for achieving strong binding
2Strength
If needleless binding portion is made longer to prevent looseness, then the binding strength improves, but the distance from exit rolls increases causing stacking instability
Solution Approach 1:
Different binding portions are created with different qualities and lengths optimized for their specific functions. The needleless binding portion has sufficient length to prevent looseness at the binding location, while the needle binding portion provides localized reinforcement at a different position. This local optimization allows each binding portion to perform its function effectively without compromising overall stacking stability
Solution Approach 2:
The binding portions are positioned asymmetrically relative to the paper bundle and exit rolls. The needleless binding portion is positioned at one location with optimized length, while the needle binding portion is positioned at another location providing reinforcement. This asymmetric arrangement allows the binding portions to work together effectively while maintaining proper alignment with the exit rolls for stable stacking
3Loss of information
If paper bundles are offset to enhance stacking distinguishability, then the visibility and organization improves, but the device complexity and alignment precision requirements increase
Solution Approach 1:
The exit rolls are positioned and configured to create equipotential conditions for paper bundle exit, ensuring that bundles naturally align at the same exit level regardless of their binding portion positions. This equipotential exit configuration simplifies the offset mechanism by providing a natural reference plane, reducing the complexity required to achieve proper stacking and distinguishability
Data Source
AI summary
A binding processing device includes: a needle binding unit that forms a needle binding portion that binds a paper bundle using a needle; a needleless binding unit that forms a needleless binding portion that binds the paper bundle without using a needle; and a plurality of exit rolls that exit the bound paper bundle. A distance between the needleless binding portion and a center of the plurality of exit rolls is equal to or longer than a distance between the needle binding portion and the center.