Multi-Path Gas Delivery Torch for Welding Thermal Management
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Welding torches face challenges with manual wire feeding, inadvertent adjustment of wire feed controls, and thermal management issues, leading to inefficiencies and operator fatigue during extended welding processes.
Innovation Solution
The design includes a wire feed assembly with securable rolls and a dual gas path system for efficient shielding gas communication, along with a thermally isolated barrel assembly to reduce heat exposure and a robust feed control mechanism to prevent inadvertent adjustments.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a single gas path is used in the torch, then the structure is simpler, but the cooling efficiency and gas delivery capability are insufficient
Solution Approach 1:
The gas delivery system is segmented into multiple independent gas paths (first gas path, second gas path, third gas path) that can operate simultaneously. Each gas path has its own conduit and can deliver different gases or provide different functions (shielding, cooling, purging), allowing the system to handle complex thermal management requirements while maintaining independent control over each path.
Solution Approach 2:
The multi-path gas delivery system provides universal functionality by enabling multiple gases to be delivered through different paths simultaneously. The system can perform shielding, cooling, and purging functions through different gas paths, making it adaptable to various welding processes and environmental conditions without requiring separate torches for each function.
2Productivity
If manual wire feeding is used, then the device complexity is reduced, but the operator fatigue increases and welding efficiency decreases
Solution Approach 1:
The wire feed assembly enables self-service operation by automatically feeding the consumable wire from the wire feed mechanism through the torch body to the welding area. The system includes automatic wire advancement, feed rate control, and positioning mechanisms that eliminate the need for manual wire handling during the welding process, allowing the operator to focus on guiding the torch and monitoring the weld quality.
3Ease of operation
If the wire feed control is made easily accessible, then the ease of operation improves, but the risk of inadvertent adjustment increases
Solution Approach 1:
The wire feed control mechanism incorporates local quality differentiation through the use of a cam mechanism with specific geometric features. The cam has a controlled engagement surface that requires deliberate rotational movement to adjust the wire feed rate, while the normal operating position provides stable engagement that resists accidental displacement. This local differentiation in the control interface allows easy intentional adjustment while preventing inadvertent changes during torch manipulation.
Data Source
Figure 1
Figure 2~3
Figure 4~7
AI summary
A torch (22) and a welding system having a pair of gas paths (128) are disclosed. The torch (22) includes a wire feed assembly (66) and is connectable to a welding-type power source and a source of shielding gas. A power signal suitable for welding applications and a shielding gas are communicated through the torch. The shielding gas is communicated through the torch by a pair of gas passages (128) .