Slitter-Winder Control for Vibration and Web Break Reduction
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Solution Overview
Problem
The capacity and efficiency of slitter-winders in fiber web production lines are limited by vibration issues, web breaks, and mechanical wear, leading to significant capacity loss and increased operational costs due to the need for multiple slitter-winders to maintain production speed.
Innovation Solution
A system and method utilizing an advisor unit with AI capabilities to process data from measurement devices and operating models to optimize running parameters, adjust tension, and minimize vibrations, ensuring optimal winding and slitting processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the slitter-winder operates at higher speeds to increase productivity, then production capacity improves, but vibration issues and web breaks increase leading to more frequent stops and reduced reliability
Solution Approach 1:
The system dynamically adjusts running parameters (speed, tension, acceleration rates) based on real-time conditions and web properties. The slitter-winder operates with variable speed profiles rather than constant high speed, optimizing performance while preventing vibration and web breaks through adaptive control
Solution Approach 2:
The system continuously monitors operational parameters and web conditions, using this feedback to adjust running parameters in real-time. This closed-loop control prevents vibration issues and web breaks by responding to actual machine state and material conditions, enabling higher overall productivity with improved reliability
2Productivity
If multiple slitter-winders are deployed to maintain high production speed, then productivity is maintained, but device complexity and operational costs increase
Solution Approach 1:
The slitter-winder is designed with multi-functional capabilities, including adjustable winding patterns, variable speed operation, and adaptive tension control, allowing a single machine to handle diverse production requirements that previously required multiple specialized machines
Solution Approach 2:
The system achieves different production capacities by changing operational parameters (speed, tension, acceleration profiles) rather than adding machines. The ability to optimize parameters for different web types and production rates allows one slitter-winder to replace multiple machines
3Ease of operation
If the slitter-winder operates continuously without parameter adjustments to simplify operation, then ease of operation improves, but mechanical wear and web breaks increase reducing productivity
Solution Approach 1:
The system automatically adjusts running parameters based on monitored conditions without requiring manual intervention. The control system serves itself by making real-time optimizations, reducing mechanical wear and preventing web breaks while maintaining operational simplicity for the user
Solution Approach 2:
The system pre-configures optimal parameter ranges and acceleration profiles based on web properties and production requirements. This preliminary setup enables the machine to operate efficiently with minimal manual adjustment while preventing mechanical wear and web breaks through pre-planned parameter optimization
Data Source
AI summary
A system (50) for controlling performance of a slitter-winder (25) and/or a fiber web production line (100) has an advisor unit (34, 36, 37) with a processor and a memory including computer program code, configured to cause the advisor unit (34, 36,37) to generate and transmit signals as first control data to the slitter-winder (25) and/or as second control data to the fiber web production line (100) based on information data received from the slitter-winder (25) and the fiber web production line (100) to control performance of the slitter-winder (25) and/or the fiber web production line (100). Performance of a slitter-winder (25) and/or a fiber web production line is controlled by receiving information data from the slitter-winder and the fiber web production line (100), processing the received information data according to a predetermined configuration, based on the processed data; generating signals according to the predetermined configuration to control the performance.