Poly-V Belt Wire Feed Drive for Welding Systems
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Solution Overview
Problem
Conventional wire feeding systems in welding operations often deform or break the welding wire due to excessive force, leading to wire shavings that can compromise the quality of the weld by lodging inside the welding system components.
Innovation Solution
A wire drive system utilizing back-driven poly-V belts with v-shaped grooves and projections mounted on rollers, which form an interfacing arrangement to securely grip and feed the welding wire, distributing the contact area and reducing the risk of deformation and breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If conventional drive rollers with small contact area are used to grip and feed welding wire, then the wire feed force is sufficient to pull the wire, but the wire is deformed or broken and produces shavings that compromise weld quality
Solution Approach 1:
The drive system is segmented into multiple drive rollers (at least two rollers) that work in conjunction with multiple belts. Each roller-belt combination provides a distributed gripping point along the wire length, transforming a concentrated force application into a distributed force system that maintains wire integrity while achieving sufficient feed force.
Solution Approach 2:
Belts with v-shaped grooves and projections serve as intermediaries between the drive rollers and the welding wire. These belts increase the contact area and provide a compliant interface that grips the wire through the v-shaped geometry while distributing stress, preventing direct metal-to-metal contact that would cause deformation and shavings.
2Productivity
If substantial force is applied to the wire during feeding to ensure proper wire feed, then the wire feed speed is maintained, but wire shavings are generated that can lodge inside welding components
Solution Approach 1:
The belts act as compliant intermediaries between the drive system and wire, allowing substantial feeding force to be applied without generating shavings. The v-shaped grooves and projections on the belts provide positive grip and controlled deformation of the belt material itself rather than the wire, eliminating harmful wire particles while maintaining productivity.
Solution Approach 2:
The system changes the physical parameters of the contact interface by introducing belts with specific v-shaped groove geometries. This transforms the interaction from rigid roller-to-wire contact into a controlled belt-to-wire interface with increased contact area and optimized stress distribution, enabling high feed speeds without wire degradation.
3Device complexity
If small contact area between drive rolls and wire is used, then the drive system is simple, but excessive force concentrates on the wire causing deformation and breakage
Solution Approach 1:
The drive system is divided into multiple rollers and belts, creating multiple contact zones along the wire. This segmentation distributes the mechanical stress across several points rather than concentrating it at a single contact area, maintaining wire strength while achieving the necessary drive capability without excessive structural complexity.
Solution Approach 2:
The introduction of belts adds a dimensional element to the drive system, transforming point-contact drive rollers into line-contact or area-contact drive belts. This dimensional expansion increases the contact area significantly while adding minimal structural complexity, as the belts are flexible components that conform to the roller surfaces.
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
The system effectively feeds welding wire with increased grip and reduced deformation, ensuring consistent wire feed and preventing wire shavings from entering the welding system, thereby improving weld quality and reliability.
Implementation Method 1
a first belt including a first series of generally v-shaped grooves and a first series of generally v-shaped projection, the belt being adapted to be mounted on the first roller in a back-driven configuration with the grooves and projections facing outward from a surface of the first drive roller
Data Source
AI summary
A welding wire feed drive system is provided including belts mounted on wire drive rollers. One or both belts may be poly-V belts mounted on the rollers and positioned such that grooves of the belts are outward facing. Opposing grooves and projections of the belts may form an interfacing or interlocking arrangement suitable for the securement of a welding wire therein. The grooves and projections of the belts may be utilized to facilitate the movement of the welding wire towards a welding application.