Wire Binding Machine Retraction Guide to Prevent Feed Buckling

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Solution Overview

Problem

Existing binding machines face difficulties in feeding wires when obstacles block the path, leading to buckling and making it challenging to remove the wire, resulting in feeding troubles and potential failures.

Innovation Solution

The binding machine incorporates a retraction guide part that allows the wire to be retracted downstream of the binding unit, enabling easy removal even when the wire is blocked by an obstacle, by providing a path for the wire to be directed radially outward from the curl guide, thus preventing buckling and feeding troubles.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the wire is fed to the curl guide in a state in which there is an obstacle blocking the feeding path, then the wire comes into contact with the obstacle and cannot be fed further, but with the retraction guide part, the wire can be retracted and easily removed

Engineering Contradiction:
Improveease of wire removalVSAvoidwire feeding reliability
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The retraction guide part extracts the wire from the curl guide when feeding trouble occurs, allowing the wire to be pulled back through a dedicated retraction path. This separation of feeding and retraction paths enables easy wire removal without damaging the curl guide structure.

Inventive Principle:
Principle #2Taking out (Extraction)

Solution Approach 2:

The retraction guide part acts as an intermediary mechanism between the wire feeding system and the curl guide. It provides a dedicated path for wire retraction, mediating the conflict between maintaining feeding path integrity and enabling easy wire removal when obstacles are present.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Productivity

If the wire is continuously fed without a retraction path, then the feeding process is simple, but the wire buckles and becomes difficult to remove when feeding trouble occurs

Engineering Contradiction:
Improvewire feeding efficiencyVSAvoidwire buckling
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The retraction guide part is prepared in advance as a dedicated path, allowing the wire to be quickly retracted when feeding trouble occurs. This preliminary preparation prevents wire buckling by providing an immediate escape route, maintaining both feeding efficiency and preventing harmful buckling effects.

Inventive Principle:
Principle #10Preliminary action

Data Source

PatentEP3708741B1Binding machine
Publication Date: 2024.11.06 MAX CO LTD
  • EP3708741B1 patent drawingFigure 1
  • EP3708741B1 patent drawingFigure 2
  • EP3708741B1 patent drawingFigure 3

AI summary

A binding machine includes a wire feeding unit configured to feed a wire to be wound on an object to be bound, a binding unit configured to twist the wire wound on the object to be bound, a curl guide configured to curl the wire being fed by the wire feeding unit, an inductive guide configured to guide the wire curled by the curl guide toward the binding unit, and a retraction guide part configured to retract the wire to a downstream side of the binding unit with respect to a feeding direction of the wire that is fed by the wire feeding unit in a direction of curling the wire by the curl guide.