Coating Die Head Position Sensing for Stable Roll Coating
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Solution Overview
Problem
The challenge in battery manufacturing is maintaining coating stability due to changes in the position of the coating die head relative to the back roll, which can lead to unstable gaps and parallelism, causing fluctuations in coating weight and potential material damage.
Innovation Solution
The implementation of a detection assembly with a level and range finder on the coating die head allows for real-time monitoring of the position change, enabling timely adjustments to maintain specifications and ensure stability through an adjusting mechanism connected to the coating die head.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If real-time detection of coating die head position is implemented using detection assembly with level and range finder, then coating stability and measurement precision are improved, but device complexity increases
Solution Approach 1:
The detection assembly is divided into two independent functional modules: a level for detecting positional deviations and a range finder for measuring gap distances. This segmentation allows each component to perform its specific function independently, improving measurement precision for coating stability while keeping the overall system manageable and not excessively complex
Solution Approach 2:
The detection assembly acts as an intermediary between the coating die head position and the control system. It provides real-time detection data without requiring direct complex interaction between the coating components and control mechanisms, thereby improving measurement precision while maintaining reasonable device complexity
2Measurement precision
If detection assembly with level and range finder is mounted on coating die head, then position change detection accuracy is improved, but ease of operation deteriorates due to additional installation and maintenance requirements
Solution Approach 1:
The level and range finder are mounted directly on the coating die head, allowing the detection system to move with the component it monitors. This self-service arrangement eliminates the need for separate mounting structures and reduces installation complexity, improving ease of operation while maintaining high position change detection accuracy
Solution Approach 2:
The detection functions (level and range finder) are combined with the coating die head structure itself rather than being separate independent systems. This merging reduces the number of separate components to install and maintain, improving ease of operation while achieving accurate position change detection
3Measurement precision
If range finder and level are arranged in different directions on coating die head, then measurement accuracy is improved by avoiding interference, but device complexity increases
Solution Approach 1:
The level and range finder are positioned at specific locations on the coating die head where they can perform their functions independently without interfering with each other. The level is arranged in one direction while the range finder operates in a different direction, allowing each component to achieve optimal measurement accuracy at its specific location without increasing overall device complexity
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
This solution ensures accurate and efficient detection of parallelism and gap deviations, allowing for immediate maintenance and maintaining coating stability, thereby preventing material damage and ensuring continuous production.
Implementation Method 1
a detection assembly, configured to detect a position of the coating die head relative to the back roll and including a level mounted on the coating die head
Implementation Method 2
the range finder determines the parallelism by detecting a distance between the back roll and the range finder
Data Source
AI summary
Disclosed is a coating equipment. The coating equipment may include a back roll, a coating die head, and a detection assembly. The coating die head may have a coating opening facing towards the back roll, and the coating opening may extend in an axial direction of the back roll. The detection assembly may be configured to detect a position of the coating die head relative to the back roll. The detection assembly may include a level mounted on the coating die head.