Welding Wire Feeder with Gripper Chain Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing wire feeders for welding face challenges such as long setup times, incorrect roller and guide adjustments leading to wire deformation, clogging, and high maintenance costs, along with risks of tangling and shaving due to misalignment and excessive pressure.
Innovation Solution
A wire feeder device utilizing a gripper assembly with a roller chain and sprockets, featuring flexible gripper members with centering projections and notches to minimize compression and distortion, and biasing members for adjustable pressure, which reduces the need for frequent adjustments and minimizes the risk of tangling and shaving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a pair of rotating rollers is used to feed welding wire, then wire feeding function is achieved, but wire deformation occurs due to high surface pressure
Solution Approach 1:
The wire feeding function is divided into two separate pairs of rollers instead of one pair. Each pair applies lower individual pressure while collectively achieving the necessary gripping force, thereby reducing wire deformation while maintaining feeding reliability
Solution Approach 2:
Two pairs of rollers are combined in sequence to share the workload of wire feeding. The synchronized rotation of multiple roller pairs distributes the mechanical stress, reducing the pressure exerted on the wire at any single point
2Manufacturing precision
If a second pair of rotating rollers is added to reduce surface pressure, then wire deformation is reduced, but wire tangling occurs between the two pairs
Solution Approach 1:
The system dynamically adapts to different wire diameters through adjustable roller positions and synchronized rotation speeds. This dynamic adjustment prevents wire tangling by ensuring proper spacing and coordination between the two pairs of rollers during operation
3Measurement precision
If grooves are formed in rotating rollers to control friction, then wire positioning is improved, but wire shaving occurs due to misalignment
Solution Approach 1:
Instead of forming grooves in rotating rollers, the invention uses grooveless rollers with localized friction control through surface treatment or material selection. This eliminates misalignment issues while maintaining adequate wire positioning through distributed contact pressure
4Ease of operation
If access panel is opened to thread wire through wire feeder, then wire feeding is enabled, but setup time increases
Solution Approach 1:
The wire threading operation is extracted from the enclosed feeder mechanism by providing external wire guides and entry points. This allows wire to be fed into the system without opening the access panel, enabling continuous operation and reducing setup time
5Adaptability or versatility
If rollers and wire guides are changed for different wire diameters, then adaptability is improved, but maintenance complexity increases
Solution Approach 1:
The wire feeder is designed with universal components that can accommodate different wire diameters without replacement. Adjustable roller positions, variable pressure mechanisms, and configurable guide settings allow a single set of components to serve multiple wire size requirements
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 solution significantly reduces setup times, minimizes wire deformation, and decreases maintenance costs by allowing for easy adaptation to different wire diameters, while preventing tangling and shaving, ensuring reliable and efficient wire feeding.
Implementation Method 1
a roller chain, and first and second sprockets operatively coupled to the roller chain so that rotation of the first and second sprockets causes the roller chain to rotate
Implementation Method 2
The first and second gripper members are movable from an open position to a closed position to contact and grip the welding wire
Data Source
AI summary
A wire feeder device for feeding a welding wire in a feeding direction is disclosed. The wire feeder device includes one or more roller chains and a plurality of first and second gripper members. The gripper members are movable from an open position to a closed position to contact and grip the welding wire. In use, the first and second gripper members are longitudinally movable with the roller chain(s) so that the welding wire is pulled along a substantially linear path. The first and second gripper members may be orientated in a vertical (i.e., coplanar) orientation or a horizontal, lateral orientation. The gripper members may include a built-in centering function to center a position of the welding wire.