Rotating Baffle Mechanism for Substrate Cleaning Leakage Control
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Solution Overview
Problem
The existing cleaning devices for glass substrates and semi-finished array substrates face issues with liquid leakage from non-used cleaning units, which can corrode the glass substrate, rendering it useless due to hydrofluoric acid leakage.
Innovation Solution
The cleaning device incorporates a conveyor system with rotatable baffles and a driving mechanism that actuates the baffles to overlap and form a plane, preventing liquid leaks from non-used units from dripping onto the substrate, and allows the liquid spray unit to open wide when necessary.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple cleaning units are arranged in sequence to perform various cleaning functions, then the cleaning capability and versatility are improved, but the risk of liquid leakage from non-used units increasing and harming the substrate
Solution Approach 1:
A baffle is introduced as an intermediary component between the liquid spray unit and the conveyor. The baffle intercepts and redirects liquid leakage before it can reach the substrate, effectively mediating between the cleaning unit and the substrate to prevent harmful contact while allowing the cleaning unit to remain functional
Solution Approach 2:
The harmful effect of liquid leakage is extracted and isolated from the substrate by directing it onto the baffle. The baffle captures the leakage and redirects it to a safe discharge location away from the substrate path, separating the leakage problem from the cleaning function
2Object-affected harmful factors
If a baffle is added to prevent liquid leakage, then the substrate protection is improved, but the device complexity increases
Solution Approach 1:
The baffle is designed as a thin, flat plate that is simple in structure yet effective in function. This thin-film approach provides adequate protection without adding significant structural complexity, weight, or cost to the system
Solution Approach 2:
The baffle is made rotatable about a horizontal axis, allowing it to dynamically adjust its position. This dynamic capability enables the baffle to adapt to different operational conditions while maintaining a simple mechanical structure with only one degree of freedom
3Object-affected harmful factors
If the baffle is made rotatable to control liquid flow, then the liquid leakage prevention is improved, but the ease of operation decreases
Solution Approach 1:
The system automatically controls the baffle position based on whether a cleaning unit is actively spraying. When the liquid spray unit is inactive, the baffle automatically rotates to the blocking position to prevent leakage; when active, it opens to allow normal operation. This self-service mechanism eliminates the need for manual intervention
Solution Approach 2:
The system incorporates feedback from the liquid spray unit's operational status to control the baffle position. The control mechanism receives information about whether the spray unit is active and automatically adjusts the baffle accordingly, creating a closed-loop control system that simplifies operation
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 effectively prevents liquid leaks from harming the substrate by forming a barrier with overlapping baffles, ensuring the substrate is not affected by corrosive liquids from unused cleaning units, enhancing the safety and effectiveness of the cleaning process.
Implementation Method 1
a liquid spray unit arranged in the working chamber and capable of spraying liquid to the object to be cleaned
Implementation Method 2
prevent liquid leakages dripping from the liquid spray unit from dripping onto the object to be cleaned
Data Source
AI summary
Provided is a cleaning device, comprising a plurality of cleaning units, and a conveyor which is used for connecting the plurality of cleaning units. Each of the plurality of cleaning units includes a body having a working chamber, and a liquid spray unit. At least one of the plurality of cleaning units comprises a plurality of baffles arranged between the liquid spray unit and the conveyor, and a driving mechanism. The driving mechanism is configured to actuate each of the plurality of baffles into rotation along a first direction to overlap with adjacent baffles, and further actuate each of the plurality of baffles into rotation along an opposite direction of the first direction.