Welding Torch Fume Extractor Attachment for Arc-Source Capture
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Solution Overview
Problem
Existing fume extraction systems for welding operations are often expensive, limited to specific welding machines, and do not efficiently capture fumes at the point of generation, requiring operators to purchase entire systems compatible with their machines.
Innovation Solution
A fume extractor attachment that can be mounted to various welding torches, including MIG torches, providing efficient fume capture at the point of generation, compatible with a range of vacuum systems, and available at a fraction of the cost of integrated systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If localized collection devices are positioned to collect air and fume from a more localized volume, then fume capture efficiency is improved, but device complexity and cost increase
Solution Approach 1:
The fume extractor attachment is nested within the welding torch structure, with the collection device positioned inside the torch body. The slots are formed in the torch walls, and the vacuum source is integrated into the torch assembly, creating a compact nested configuration that achieves localized fume capture without adding external complexity
Solution Approach 2:
The welding torch is designed to perform multiple functions: welding operations and fume extraction. The same torch structure that delivers welding current and shielding gas also incorporates slots and a vacuum source for fume capture, eliminating the need for separate dedicated fume extraction equipment
2Productivity
If integrated fume extraction systems are built into welding machines, then fume capture effectiveness is improved, but system cost increases substantially
Solution Approach 1:
The fume extraction system is segmented into separate modular components: the torch body with slots, the vacuum source, and the collection device. This segmentation allows the fume extraction function to be added to existing welding torches without requiring complete system integration, thereby reducing overall system cost while maintaining effectiveness
Solution Approach 2:
The patent introduces an intermediary attachment device that connects the welding torch to the vacuum source. This intermediate component serves as a bridge, allowing fume extraction to be implemented without direct integration into the welding machine itself, thus reducing system cost and complexity
3Ease of operation
If fume extraction attachment is designed for easy installation and removal, then ease of operation is improved, but connection reliability may worsen
Solution Approach 1:
The connection system employs dynamic elements such as flexible hoses and adjustable clamps that can be easily connected and disconnected. The flexible hose allows for simple attachment to the torch neck while maintaining reliable fluid communication, and the clamp mechanism provides secure connection that can be quickly adjusted or removed as needed
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
Enables effective fume capture at the welding arc location, reducing environmental dispersion of fumes, compatible with multiple torch types, and allowing for easy installation and removal without downtime.
Implementation Method 1
A fume extractor attachment enables fume extraction at a location adjacent to a nozzle of the welding torch, which captures and channels fumes for collection and filtering
Data Source
Figure 1A
Figure 1B~1C
Figure 2A
AI summary
The present application relates to a fume extractor attachement (102) for improved extracting of fume at the point of fume generation extraction for welding torch (104A). The fume extractor attachment (102) is mounted onto the welding torch (104A), in which the fume extractor attachment (102) enables fume extraction at a location adjacent to a nozzle (118) of the welding torch (104A), which captures and channels fumes for collection and filtering. The fume extractor attachment enables an operator to modify a variety of torches to easily add fume source capture capabilities to a standard welding torch, thereby providing improved fume extraction efficiency by locating the fume extraction closer to the welding arc.