Closed-Loop Preload Rollers for Variable Wire Feed Gaps
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Solution Overview
Problem
Current wire feeding systems in welding and 3D printing face challenges in dynamically adjusting the gap size between rollers to accommodate wires of varying dimensions, leading to stress on the wire and potential system components, which can result in reduced longevity and print quality.
Innovation Solution
A system comprising a driver roller and a preload roller with an adjustable gap, actuated by an adjustable mechanism and controlled by a controller, which allows for real-time closed-loop feedback to adjust the gap size and rotation speed to reduce stress on the wire, enabling the use of wires with different dimensions and materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If manual gap adjustment is used between rollers, then the structure is simple, but it is difficult to dynamically change the gap size during feedstock feeding
Solution Approach 1:
The patent applies dynamics by transitioning from static manual gap adjustment to dynamic automated adjustment. The actuator (motorized component) enables the gap between rollers to change automatically during operation based on feedstock dimensions, allowing the system to adapt to varying wire sizes without manual intervention while maintaining a relatively simple overall structure.
Solution Approach 2:
The patent implements feedback through sensors that detect wire diameter and provide real-time information to the controller. This closed-loop feedback system enables the controller to automatically adjust the actuator position, thereby dynamically changing the gap size to match the detected wire dimensions, achieving adaptability through intelligent control.
2Reliability
If fixed gap size is used between rollers, then the system is simple to operate, but stress is imposed on feedstock with varying cross-sectional dimensions
Solution Approach 1:
The system applies self-service by enabling automatic gap adjustment without manual operation. The sensor detects wire dimensions and the controller automatically positions the actuator to set the appropriate gap, eliminating the need for operators to manually adjust gaps for different feedstocks. This reduces operational complexity while ensuring optimal gap settings that minimize stress on varying feedstock dimensions.
3Adaptability or versatility
If manual gap adjustment is used, then device complexity is low, but it cannot accommodate different feedstocks with different cross-sectional dimensions
Solution Approach 1:
The patent replaces manual mechanical adjustment with an automated electromechanical system. The actuator (motorized component) substitutes for manual knobs or screws, and sensors replace visual estimation, creating an automated dimension-matching system that can accommodate various feedstock sizes through electronic control rather than manual mechanical operation.
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
This solution reduces stress on wires and system components, increases the longevity of the feeding system, and improves the quality of welding and 3D printing processes by dynamically adjusting to wire dimensions and materials.
Implementation Method 1
A wire feeder may comprise a roller that is in contact (e.g., frictional contact) with a wire to advance the wire towards a wire receiver.
Implementation Method 2
an actuator coupled to the driver roller or the preload roller and configured to adjust the size of the gap
Data Source
AI summary
The present disclosure provides a system for feeding a wire. The system may comprise a wire source configured to hold a wire. The system may comprise a driver roller configured to undergo rotation to direct the wire towards a wire receiver. The system may comprise a preload roller adjacent to the driver roller and configured to come in contact with the wire at a position adjacent to the driver roller. The preload roller and the driver roller may be separated by a gap. The size of the gap may be adjustable to permit the wire to be directed through the gap. The system may comprise an actuator coupled to the driver roller or the preload roller and configured to adjust the size of the gap. The system may comprise a controller operatively coupled to the actuator. The size of the gap may be adjusted by real-time closed-loop feedback.