Binder Ring Parts with Penetration Holes for Thermal Expansion
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Solution Overview
Problem
Existing binders used in binding processing machines face issues with linear expansion due to temperature changes, leading to poor mounting and feeding problems, as they expand and contract, causing misalignment of punched holes and ring pitches.
Innovation Solution
The binder features a back part with ring parts that are openable and closable, including penetration holes along the center line to absorb linear expansion, and position regulating portions on the side surfaces to maintain proper positioning during expansion, ensuring consistent ring pitch and smooth feeding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the binder is made of plastic material, then the binder can be molded into various shapes and is easy to manufacture, but the binder undergoes linear expansion due to temperature changes causing misalignment of punched holes and ring pitches
Solution Approach 1:
The binder is divided into multiple independent ring parts (first ring part, second ring part, third ring part, etc.) that are coupled together through the back part. This segmentation allows each ring part to accommodate thermal expansion independently while maintaining the overall structural integrity and pitch alignment of the binder.
Solution Approach 2:
The ring parts are designed with movable coupling mechanisms that allow for dynamic adjustment during thermal expansion. The coupling structure enables the ring parts to move relative to each other in response to temperature changes, thereby maintaining proper alignment despite linear expansion of the plastic material.
2Stability of the object's composition
If the back part is made rigid to maintain binder shape, then the binder structure is stable, but the binder cannot accommodate linear expansion causing poor mounting and feeding
Solution Approach 1:
The back part couples multiple ring parts together, creating a segmented structure where each ring part can independently accommodate thermal expansion. This segmentation maintains overall binder shape stability while allowing local adjustments for thermal effects.
Solution Approach 2:
The coupling structure between ring parts and the back part is designed with parameter changes that allow for thermal expansion. The structural parameters of the coupling mechanism are optimized to permit controlled movement that absorbs linear expansion while maintaining the binder's external shape and functionality.
3Productivity
If multiple binders are piled up for storage and feeding, then the feeding efficiency is improved, but the binders expand and contract causing misalignment and poor feeding
Solution Approach 1:
The segmented ring part structure allows each binder in the pile to accommodate thermal expansion independently. This ensures that even when multiple binders are piled up for storage and feeding, each binder maintains its pitch alignment and can be fed smoothly without misalignment issues.
Solution Approach 2:
The dynamic coupling mechanism in each binder allows for real-time adjustment during thermal expansion and contraction. This dynamic adaptation ensures consistent ring pitch alignment across multiple binders in the pile, enabling reliable automated feeding operations.
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
This design allows the binder to correct for linear expansion, preventing misalignment of punched holes and ring pitches, thereby ensuring proper mounting and feeding within binding processing machines, even under temperature variations.
Implementation Method 1
the binder varies greatly in length according to temperature. At least one of the ring parts is formed with a penetration hole where the center line of the back part intersects with the at least one of the ring parts so as to absorb a linear expansion of the binder in a longitudinal direction thereof
Data Source
Figure 1
Figure 2
Figure 3(a)~3(b)
AI summary
A binder includes a back part disposed between ring parts, each of the ring parts being openable and closable to constitute a binder. A penetration hole is formed at a portion of the ring parts intersecting with the back part, thereby allowing the binder to expand and contract to a certain degree in a longitudinal direction thereof.