Corona treatment system
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Solution Overview
Problem
The issue of 'backside treat' in corona treatment systems, where unwanted corona discharge on the opposite side of the web occurs due to dirt buildup on the ground roller, leading to inefficient treatment and potential blocking or picking, is not effectively addressed by existing technologies.
Innovation Solution
A color sensor is integrated into the corona treatment system to detect imperfections on the ground roller, such as debris or oxidation, which change its reflectance level, triggering an alarm and ceasing operation when imperfections are detected, ensuring timely maintenance and preventing backside treat.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the corona treatment system operates continuously without monitoring, then productivity is maintained, but backside treat occurs due to dirt buildup on the ground roller
Solution Approach 1:
The color sensor performs preliminary detection of dirt buildup on the ground roller before it causes backside treat. By monitoring reflectance levels continuously, the system identifies contamination early and triggers maintenance before the harmful effect occurs, allowing continuous operation without backside treat issues
Solution Approach 2:
The color sensor provides continuous feedback on the ground roller's surface condition by measuring reflectance levels. This feedback loop enables real-time monitoring and automatic alarm activation when dirt buildup reaches critical levels, maintaining productivity while preventing backside treat through timely intervention
2Manufacturing precision
If manual inspection of the ground roller is performed frequently, then treatment quality is maintained, but loss of time increases due to停机 for inspection
Solution Approach 1:
The color sensor performs automatic self-inspection of the ground roller surface continuously during operation. The system monitors its own condition without requiring external manual intervention, maintaining treatment quality while eliminating downtime associated with manual inspections
Solution Approach 2:
The optical color sensor replaces manual visual inspection mechanisms. By using optical detection to measure reflectance levels, the system automates the inspection process entirely, maintaining manufacturing precision while eliminating the time loss inherent in manual inspection cycles
3Object-affected harmful factors
If the ground roller is cleaned frequently, then backside treat is prevented, but productivity decreases due to maintenance interruptions
Solution Approach 1:
The color sensor detects dirt buildup on the ground roller at early stages before it causes backside treat. By providing advance warning through reflectance level monitoring, the system enables planned maintenance at optimal intervals, preventing backside treat while minimizing productivity loss from unnecessary maintenance interruptions
Solution Approach 2:
Continuous optical feedback on ground roller condition enables condition-based maintenance scheduling. The system cleans the roller only when the color sensor detects reflectance changes indicating dirt buildup, preventing backside treat while optimizing maintenance timing to minimize productivity interruptions
4Device complexity
If no detection system is installed, then device complexity is low, but harmful factors increase due to undetected dirt buildup
Solution Approach 1:
The color sensor acts as an intermediary detection device that indirectly monitors ground roller condition by measuring reflectance levels. This simple optical intermediary provides effective dirt buildup detection without requiring complex direct inspection mechanisms, preventing backside treat while adding minimal system complexity
Solution Approach 2:
The system exploits color/reflectance changes on the ground roller surface as an indicator of dirt buildup. By monitoring optical properties rather than requiring physical contact or complex sensors, the system detects contamination effectively with minimal added complexity, preventing backside treat through simple reflectance level measurement
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 color sensor effectively identifies when the ground roller needs servicing, preventing backside treat and ensuring consistent treatment quality by alerting operators and halting the system when imperfections are detected, thus maintaining optimal treatment conditions.
Implementation Method 1
The color sensor is capable of detecting imperfections which have changed the reflectance level of the ground roller from a predefined level
Implementation Method 2
Corona treatment is a method using an electrical corona discharge to modify a surface of a web to improve its ability to accept inks and adhesives
Data Source
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AI summary
According to an aspect of the present disclosure, a color sensor is provided for sensing whether a ground roller in a corona treatment system needs to be serviced. The color sensor is capable of detecting imperfections which have changed the reflectance level of the ground roller from a predefined level. According to another aspect of the present disclosure, if a determination is made that the ground roller needs to be serviced, then an alarm is activated and/or the operation of the corona treatment system is ceased.