Consumable Wire Mark Reading With Radial Optical Sensors

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Solution Overview

Problem

Existing welding systems face challenges in determining the remaining length of consumables like metal wire or metal strip in a spool or coil without interrupting the welding operation, and often rely on user visual inspection or manual scanning of markings, which can lead to incorrect settings or depletion during welding.

Innovation Solution

A reader system with multiple optical sensors arranged radially around the consumable path, scanning laser-etched markings on the wire to detect and decode information about the consumable's characteristics, including length, type, and authenticity, ensuring consistent reading regardless of wire orientation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If multiple optical sensors are arranged radially around the consumable path to scan markings regardless of wire orientation, then the reliability of consumable identification is improved, but the device complexity increases

Engineering Contradiction:
Improveconsumable identification reliabilityVSAvoidsensor arrangement complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The reading system is segmented into multiple independent optical sensors positioned at different radial locations around the wire path. Each sensor can independently detect markings when the wire passes by, ensuring that at least one sensor will capture the marking regardless of the wire's rotational orientation during feeding.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The system transitions from a single-point detection approach to a multi-dimensional radial arrangement of sensors around the wire path. This spatial distribution in multiple dimensions ensures comprehensive coverage of all possible wire orientations, making the identification process reliable without requiring precise orientation control.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Productivity

If automatic optical sensing is implemented to identify consumable characteristics, then the productivity is improved by eliminating manual inspection, but the device complexity increases

Engineering Contradiction:
Improveconsumable identification speedVSAvoidreading system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system enables self-service by automatically detecting and identifying consumable characteristics through optical sensing without requiring manual intervention. The multiple sensors continuously monitor the wire path, automatically capture marking information, and provide real-time identification, freeing operators from manual inspection tasks.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The manual mechanical inspection process is replaced with an optical sensing system that uses light to detect markings on the consumable. This substitution eliminates the need for physical contact and manual reading, enabling faster, more consistent identification while reducing labor requirements.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Measurement precision

If radial sensor arrangement is used to detect markings on moving wire, then the measurement precision is improved for various wire orientations, but the loss of time for system setup increases

Engineering Contradiction:
Improvemarking detection accuracyVSAvoidsystem configuration time
Core Design Contradiction:
Measurement precisionVSLoss of time

Solution Approach 1:

The sensors are pre-positioned in a radial arrangement around the wire path during system manufacturing, establishing optimal detection positions before the system is put into service. This preliminary configuration ensures that when the wire passes through, at least one sensor will be in the correct position to detect markings regardless of the wire's rotational orientation, eliminating the need for time-consuming alignment adjustments.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system accommodates various wire orientations by changing the spatial parameters of sensor positions rather than requiring changes in wire position or system configuration. The radial arrangement allows the detection geometry to adapt to different wire orientations through the fixed spatial distribution of sensors, maintaining measurement precision without requiring time-consuming reconfiguration.

Inventive Principle:
Principle #35Parameter changes

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 accurately tracks consumable usage, sets appropriate welding parameters, authenticates the consumable, and alerts when supply is low, enhancing operational efficiency and accuracy.

Implementation Method 1

The first sensor and the second sensor are configured to detect marks on a wire when light is incident on the wire

Methodology Applied
Scientific EffectLight reflection: Reflection

Data Source

PatentUS12423537B2Marked consumable reading
Publication Date: 2025.09.23 ESAB AB
  • US12423537B2 patent drawing
  • US12423537B2 patent drawing
  • US12423537B2 patent drawing

AI summary

Techniques for automatic reading of marked consumables are disclosed. The techniques involve a reader having a plurality of sensors for receiving a marked consumable and detecting includes markings on the consumable, regardless of the orientation of the consumable to the reader.