Binding Machine Wire Guide Structure for Buckling Control

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Solution Overview

Problem

Conventional binding machines face issues with wire looseness and buckling due to the lack of a means to restrict deviation, leading to instability and reduced workability, especially when using small-diameter flexible wires, which results in increased machine size and decreased handling efficiency.

Innovation Solution

A binding machine with a feeding unit that includes a first restriction unit to guide the wire within a specific route and a second restriction unit to prevent deviation during pullback, along with a curl arm that deforms the wire to form a circle locus, offsetting the virtual plane of the wire's arc within the curl arm to minimize scattering and maintain alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the wire is forced to be pulled back at the feeding unit without a restriction means, then the wire feeding operation is simple, but wire looseness occurs between the feeding unit and the reel, causing buckling and instability

Engineering Contradiction:
Improvewire feeding operation simplicityVSAvoidwire position stability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

A wire restriction member is introduced as an intermediary component between the feeding unit and the reel. This member acts as a mediator to guide and constrain the wire, preventing looseness and buckling while maintaining smooth wire feeding operations.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The wire restriction function is extracted from the feeding unit itself and implemented as a separate, dedicated component. This allows the feeding unit to maintain its simplicity while the restriction member independently handles wire stabilization.

Inventive Principle:
Principle #2Taking out (Extraction)

2Device complexity

If the wire is forced to be pulled back without deviation restriction, then the structure remains simple, but the wire buckles easily when curvature exceeds predetermined values

Engineering Contradiction:
Improvestructure simplicityVSAvoidwire shape stability
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The wire restriction member serves as a mediator that provides gentle guidance to the wire during pullback operations. It prevents the wire from deviating into buckled positions while avoiding excessive force that could cause deformation, thus maintaining both structural simplicity and wire shape stability.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Adaptability or versatility

If multiple small-diameter flexible wires are used to improve contact with reinforcing bars, then binding effectiveness increases, but wire looseness and buckling problems are amplified

Engineering Contradiction:
Improvecontact with reinforcing barsVSAvoidwire stability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The wire restriction member acts as a dedicated intermediary for small-diameter wires, providing the necessary guidance and constraint that these flexible wires require. This enables the use of multiple small-diameter wires for better adaptability to reinforcing bars while preventing the amplified looseness and buckling issues.

Inventive Principle:
Principle #24Intermediary (Mediator)

4Device complexity

If the wire is allowed to deviate freely during feeding, then no restriction components are needed, but the wire scattering increases and machine size must be enlarged to accommodate

Engineering Contradiction:
Improvecomponent quantityVSAvoidmachine size
Core Design Contradiction:
Device complexityVSArea of stationary object

Solution Approach 1:

The wire restriction function is extracted as a separate, compact component rather than being integrated into the main machine structure. This allows the machine to maintain a compact size while providing necessary wire guidance through the dedicated restriction member.

Inventive Principle:
Principle #2Taking out (Extraction)

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 solution effectively restricts wire deviation and buckling, enhancing the machine's workability by preventing wire scattering and allowing for a smaller machine design, thus improving handling and efficiency.

Implementation Method 1

a curve forming unit for curling the wire fed out from the feeding unit to make a loop

Methodology Applied
Scientific EffectPlastic deformation: Plasticity

Data Source

PatentUS11958100B2Binding machine
Publication Date: 2024.04.16 MAX CO LTD
  • US11958100B2 patent drawing
  • US11958100B2 patent drawing
  • US11958100B2 patent drawing

AI summary

The wire fed or pulled back from the reel by the feeding unit can be properly restricted. The invention relates to a binding machine (2) having a feeding unit (16) for feeding out a wire (3) from a reel (12) provided in a housing unit (11). With respect to the entering route (81) of the wire (3) when the wire (3) drawn out from the reel (12) by the feeding unit (16) is guided to the feeding unit (83), the first restriction unit (83) that restricts the drawing portion (3a) of the wire (3) disposed between the reel (12) and the feeding unit (16) from being deviating from the entering route (81) is provided inside the housing unit (11).