Dynamic Laser Marking Speed Control for Moving Objects
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Solution Overview
Problem
Conventional laser marking systems struggle to maintain effective marking of moving objects when the production line speed exceeds a critical speed, leading to incomplete marking, as the system cannot adapt in real-time to varying speeds and may result in products being unmarked if the speed is too high.
Innovation Solution
A system that dynamically controls the speed of the production line based on the position of the object within the working area and the position of the laser beam, using a sensor to adjust the speed through a servocontroller, allowing for real-time optimization of marking parameters and ensuring complete marking by adjusting the speed accordingly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the production line speed is increased to improve productivity, then productivity increases, but the object leaves the working area before complete marking occurs
Solution Approach 1:
The patent applies dynamics by making the production line speed variable rather than fixed. The speed is dynamically adjusted based on the object's position within the working area and the marking progress, allowing the system to adapt to real-time conditions and complete marking before the object exits the working area.
Solution Approach 2:
The patent implements feedback control by using a position encoder to obtain real-time position information of the moving object and feeding this information back to the control system. This feedback enables the system to adjust the production line speed accordingly, ensuring complete marking while maintaining high productivity.
2Manufacturing precision
If the production line speed is reduced to ensure complete marking, then marking completeness improves, but productivity decreases
Solution Approach 1:
The patent applies local quality by differentiating the speed control based on the object's position within the working area. Different sections of the marking process may require different speed levels, allowing the system to optimize both completeness and productivity by applying appropriate speed control to each local situation.
Solution Approach 2:
The patent changes the speed parameter dynamically during the marking process rather than maintaining a constant speed. The control system adjusts the production line speed based on marking parameters and object position, enabling the system to achieve complete marking while minimizing productivity loss.
3Manufacturing precision
If a position encoder is added to track object position in real time, then marking precision improves, but device complexity increases
Solution Approach 1:
The patent applies universality by designing the control system to perform multiple functions: it processes position encoder data, controls production line speed, monitors marking progress, and adjusts parameters in real time. This multi-functional approach consolidates complexity into a single integrated system rather than adding separate dedicated systems for each function.
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 complete and efficient marking of moving objects by optimizing the production line speed according to the marking parameters, preventing incomplete marking due to high speeds and ensuring consistent product quality.
Implementation Method 1
marking a moving object (whether the movement is translational or rotational) by laser
Implementation Method 2
A 2D laser marking system of the conventional type can be used to print a set of vector or rasterised data on a planar square area
Data Source
AI summary
Device and process for marking a moving object by laserA process for marking a moving object by means of a laser using a laser system with a laser beam with the ability to mark within a working area characterised in that:the position of the object to be marked is obtained by means of a sensor, andthe speed of the object to be marked is varied in relation to the position of the object to be marked relative to the working area and/or the position of the laser beam within the working area.