Coating Die Cleaning Assembly for Slurry-Free Discharge Ports
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Solution Overview
Problem
Current methods for cleaning the discharge port of coating dies used in battery electrode production are inefficient and require manual intervention, leading to resource waste and potential scratches on the foil due to dried slurry.
Innovation Solution
A coating die equipped with a cleaning assembly that includes a cleaning part and a driving part, allowing for automatic mechanical cleaning by extending into the discharge port to remove debris and dried slurry, utilizing an elastic sheet and a cleaning strip for enhanced efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If manual cleaning method is used, then operation simplicity is maintained, but cleaning efficiency is low and time consumption is high
Solution Approach 1:
The coating die performs its own cleaning operation through the integrated cleaning assembly, eliminating the need for separate manual cleaning processes. The cleaning part extends into the discharge port and removes slurry automatically during the coating process
Solution Approach 2:
The cleaning part is positioned to extend into the discharge port before slurry can dry and cause blockages. By performing cleaning proactively rather than reactively, the system prevents the formation of dried slurry that would require more intensive removal methods
2Loss of time
If manual cleaning is performed, then equipment complexity is low, but cleaning speed is slow and production time is lost
Solution Approach 1:
The manual mechanical wiping action is replaced with an automated cleaning assembly that uses a cleaning part capable of extending into and removing slurry from the discharge port. This mechanical substitution enables continuous operation without manual intervention
Solution Approach 2:
The cleaning assembly is integrated into the coating die structure, allowing the same device to perform both coating and cleaning functions. The cleaning part can extend into the discharge port and remove slurry, while the cleaning strip provides additional cleaning capability for the outer surface
3Reliability
If discharge port is not cleaned, then operational simplicity is maintained, but slurry blockage occurs and causes scratches on foil
Solution Approach 1:
The cleaning assembly takes preliminary action to remove slurry from the discharge port before it can dry and cause blockages or scratches on the foil. By continuously or periodically cleaning the discharge port, the system prevents the formation of harmful dried slurry deposits
Solution Approach 2:
The cleaning part acts as an intermediary between the slurry in the discharge port and the foil being coated. By removing slurry through this intermediate cleaning mechanism, the system prevents direct contact between dried slurry and the foil surface
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 solution enables faster and more efficient cleaning of the discharge port, reducing the risk of scratches and resource waste, while maintaining the integrity of the coating process.
Implementation Method 1
With the elastic force of the elastic sheet, when the transmission shaft rotates, the wound portion of the elastic sheet is released from the transmission shaft under the action of its own elastic force, thereby enabling the another portion of the elastic sheet to extend from the inside of the receiving cavity into the discharge port
Data Source
AI summary
A coating die, a coating apparatus, and a coating method are provided, and pertain to the field of battery technologies. The coating die includes a die body and a cleaning assembly. The die body has a receiving cavity, a feed port, and a discharge port. The cleaning assembly is located in the receiving cavity. The cleaning assembly includes a cleaning part and a driving part, the driving part being configured to drive the cleaning part to extend into the discharge port for cleaning of the discharge port. When the discharge port of the coating die needs to be cleaned, the cleaning part can be driven by the driving part of the cleaning assembly to extend into the discharge port. Debris or dried slurry in the discharge port can be discharged by the cleaning part in the process of extending into the discharge port, thereby cleaning the discharge port.