Portable Wire Feeder Layout for Large Spools and Heavy Wire

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Solution Overview

Problem

Conventional suitcase wire feeders are limited in portability due to the weight of large spools of welding wire, restricting their use in industries that require mobility and larger wire spools, and they lack the capacity to handle larger diameter wires due to motor weight constraints.

Innovation Solution

A portable wire feeder system with a separate enclosure for the wire spool, allowing the spool to be disconnected from the drive components, enabling easier movement and replacement, and incorporating a more powerful motor to handle larger diameter wires.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If conventional suitcase wire feeders are designed to use large spools of welding wire, then the wire feeder can handle larger spools, but the weight increases and portability is reduced

Engineering Contradiction:
Improvewire spool sizeVSAvoidwire feeder weight
Core Design Contradiction:
Quantity of substanceVSWeight of moving object

Solution Approach 1:

The wire feeder system is divided into two separate components: a portable drive unit containing the motor and control electronics, and a separate spool carrier that holds the welding wire spool. This segmentation allows the drive unit to remain lightweight and portable while the spool carrier can accommodate large 50-60 pound spools without constraining the overall system portability, as the components can be used independently or combined as needed.

Inventive Principle:
Principle #1Segmentation

2Power

If conventional suitcase wire feeders use larger motors to handle larger diameter wires, then the motor power increases, but the weight increases and portability is reduced

Engineering Contradiction:
Improvemotor powerVSAvoidwire feeder weight
Core Design Contradiction:
PowerVSWeight of moving object

Solution Approach 1:

By separating the motor (drive components) from the spool, the system allows a powerful motor to be housed in the portable drive unit without the weight penalty of enclosing it with a large spool. The motor can be optimized for power to handle larger diameter wires while the drive unit remains portable at under 20 pounds.

Inventive Principle:
Principle #1Segmentation

3Ease of operation

If conventional suitcase wire feeders are designed for portability, then the weight is reduced, but the capacity to handle larger spools and wire diameters is limited

Engineering Contradiction:
ImproveportabilityVSAvoidwire handling capacity
Core Design Contradiction:
Ease of operationVSAdaptability or versatility

Solution Approach 1:

The separation of drive components from the spool enables the system to achieve both portability and versatility. The compact drive unit weighs under 20 pounds for easy portability, while the separate spool carrier can accommodate various spool sizes and wire types, including large 50-60 pound spools and larger diameter wires, thereby expanding the system's adaptability without compromising portability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The portable wire feeder system is designed to handle multiple wire types and spool configurations. The drive unit can work with different spool carriers, allowing it to adapt to various welding applications requiring different wire diameters and spool sizes, making the system universally applicable across different welding tasks while maintaining portability.

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

Data Source

PatentEP3919214A1Wire feeder and suitcase spool carrier
Publication Date: 2021.12.08 ILLINOIS TOOL WORKS INC
  • EP3919214A1 patent drawingFigure 1a
  • EP3919214A1 patent drawingFigure 1b
  • EP3919214A1 patent drawing

AI summary

Disclosed is a system for feeding welding wire for welding-type applications. The system includes a welding wire feeder and a separate wire source including a wire source housing. The wire source is connectable to and disconnectable from the wire feeder.