In-Line Wire Feeder Layout for Long-Lead MIG Wire Feeding

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Solution Overview

Problem

Conventional welding systems, particularly those using metal inert gas (MIG) welding, are limited by the short lead distance between the power source and the worksite, which restricts the movement of the welding gun and can cause wire feeding issues due to increased friction and tension, especially with aluminum wires.

Innovation Solution

The introduction of an in-line wire feeder as a separate device that separates the wire feeding mechanism from the power source, allowing for longer leads by connecting to gas, wire, and power sources on one end and the torch on the other, enabling extended reach and reducing wire feeding tension.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Length of moving object

If the lead distance between the power source and the worksite is extended, then the flexibility and reach of the welding system is improved, but the wire feeding tension and friction increase causing feeding issues

Engineering Contradiction:
Improvelead distanceVSAvoidwire feeding performance
Core Design Contradiction:
Length of moving objectVSReliability

Solution Approach 1:

The wire feeding system is divided into two separate feeding mechanisms: a first wire feeder at the power source and a second wire feeder at the in-line position. This segmentation allows each feeder to handle a portion of the wire path, reducing the tension and friction on the wire throughout the extended lead distance while maintaining reliable feeding performance.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

An in-line wire feeder device is introduced as an intermediary component between the power source and the welding torch. This intermediate device actively feeds the electrode wire through the extended lead distance, acting as a mediator that reduces wire feeding tension and friction by providing localized driving force at critical points along the wire path.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Adaptability or versatility

If a separate in-line wire feeder is introduced, then the lead distance and flexibility are improved, but the device complexity increases

Engineering Contradiction:
ImproveflexibilityVSAvoidsystem complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The in-line wire feeder device is designed to be compatible with various welding systems and configurations, serving multiple functions including wire feeding, system extension, and flexibility enhancement. This multi-functionality justifies the added complexity by providing comprehensive benefits across different welding applications.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The system allows dynamic configuration where the in-line wire feeder can be positioned at different locations along the lead distance depending on the specific welding application requirements. This dynamic adaptability enables the system to optimize performance for different workspace configurations while managing complexity through flexible positioning rather than fixed installations.

Inventive Principle:
Principle #15Dynamics

Data Source

PatentEP4434664A1Systems and methods for utilizing in-line wire feeders
Publication Date: 2024.09.25 ILLINOIS TOOL WORKS INC
  • EP4434664A1 patent drawingFigure 1
  • EP4434664A1 patent drawingFigure 1B
  • EP4434664A1 patent drawingFigure 1C

AI summary

Systems and methods are provided for utilizing in-line wire feeders. A welding-type system may include an in-line wire feeder device configured to feed electrode wire from a wire source. The in-line wire feeder device may include an in-line wire feeding mechanism, may be a physically separate component from both of a second wire feeder device and a welding-type torch, and may be connected in series with the second wire feeder device. The in-line wire feeder device may control feeding of the electrode wire from a wire source, with the controlling including causing the second wire feeder device to feed the electrode wire from the wire source until the electrode wire reaches the in-line wire feeding mechanism, and then afterwards deactivating at least a feeding function of the second wire feeder device, and causing the in-line wire feeding mechanism to take overfeeding of the electrode wire from the wire source.