Metal Profile Drawing Control With Sensor-Based Auto Setup
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Solution Overview
Problem
Existing drawing plants for metal profiles require manual adjustment and reconfiguration for product changes, leading to inefficiencies and increased changeover times due to the need for intuitive parameter setting and random quality checks.
Innovation Solution
A drawing system with a process controller and self-learning algorithm that automatically adjusts quality-relevant parameters using quality sensors to achieve predefined product qualities, allowing for automatic operation and optimal operating point determination based on specific materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual adjustment and reconfiguration is used for product changes, then the drawing system can be operated with simple equipment, but the changeover time increases and productivity decreases
Solution Approach 1:
The control system automatically adjusts drawing parameters and operates the system based on quality sensor feedback, enabling the drawing plant to self-regulate without manual intervention for each product change, thus reducing changeover time and increasing productivity
Solution Approach 2:
Quality sensors continuously monitor product characteristics and feed this information back to the control system, which automatically adjusts process parameters to maintain quality standards during product transitions, eliminating the need for manual reconfiguration and reducing changeover time
2Manufacturing precision
If manual parameter setting based on operator experience is used, then the system setup is simple, but the manufacturing precision and quality consistency deteriorate
Solution Approach 1:
The manual operator-based parameter setting system is replaced with an automated control system that uses quality sensor data to determine optimal parameters, substituting human intuition and experience with automated measurement and control mechanisms to achieve consistent quality
Solution Approach 2:
The control system independently determines and adjusts process parameters based on real-time quality measurements, eliminating the need for manual operator intervention and ensuring consistent manufacturing precision through automated decision-making
3Manufacturing precision
If random quality checks are performed, then the inspection process is simple and quick, but the measurement precision and quality assurance deteriorate
Solution Approach 1:
Quality sensors continuously monitor product characteristics throughout the drawing process rather than performing random intermittent checks, ensuring consistent quality assurance through uninterrupted measurement and immediate detection of quality deviations
Solution Approach 2:
Continuous quality measurements are fed back to the control system in real-time, enabling immediate detection and correction of quality issues, thereby ensuring high measurement precision and consistent quality assurance through automated closed-loop control
Data Source
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AI summary
The invention relates to a drawing system (1) and to a method for automatically operating a drawing system (1), wherein at least one quality-relevant feature of a drawn product, selected from a group of features comprising the straightness of the drawn product, the length of the drawn product, the diameter and/or at least the thickness of the drawn product, the roundness of the drawn product, and the surface quality of the drawn product, is measured by means of at least one quality sensor (3), and the obtained measurement value is processed in at least one closed loop which acts on at least one quality-relevant manipulated variable of the drawing system (1) or parts of the drawing system (1) via at least one controller. At least one reference variable for at least one quality-relevant feature of a specific drawn product is processed in a process controller (4), wherein the reference variable defines an operating point of the drawing system (1) or parts of the drawing system (1) or is used to define an operating point of the drawing system (1) or parts of the drawing system (1), and the operating point can be selected via an operating unit (6) on the basis of a specific drawn product, said operating unit acting on the at least one controller which automatically sets the operating point in question of the drawing system (1) or the part of the drawing system (1) in question.