Adjustable Coating Die for Local Thickness Control
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Solution Overview
Problem
Existing coating devices lack flexibility in adjusting coating thickness for different sizes due to fixed adjusting members that cannot be moved in the width direction, leading to inconsistent coating thickness and reduced performance in applications like battery production.
Innovation Solution
A coating die with detachable driving assemblies and adjusting members connected through a communicating pore, allowing the adjusting members to move perpendicular to the discharge direction for precise thickness adjustment, facilitated by connectors and driving members with threaded connections for mechanical control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If adjusting members are fixed in position on the coating die, then the structure is simple and easy to manufacture, but the flexibility in adjusting coating thickness for different sizes is poor
Solution Approach 1:
The adjusting members are made movable along the width direction of the coating die through driving assemblies, transforming from a fixed static structure to a dynamic adjustable structure. This allows the adjusting members to be positioned at different locations according to different coating size requirements, thereby improving adaptability without significantly increasing overall structural complexity.
Solution Approach 2:
The coating die is designed with multiple adjusting members that can independently control discharge flow rates at different positions. This multi-functional design allows a single coating die to handle various coating sizes and thickness requirements, replacing the need for multiple specialized dies, thus improving versatility while maintaining reasonable structural complexity.
2Adaptability or versatility
If adjusting members are made movable in the width direction, then the flexibility for different coating sizes is improved, but the device complexity increases due to additional driving assemblies
Solution Approach 1:
The coating die is divided into multiple independent control zones with separate adjusting members and driving assemblies. Each segment can be independently adjusted to control the discharge flow rate at specific positions, allowing localized adjustments without affecting other areas. This segmentation enables flexible adaptation to different coating size requirements while keeping each individual driving assembly relatively simple.
3Manufacturing precision
If multiple adjusting members are used to control different areas, then the precision of coating thickness adjustment is improved, but the ease of operation decreases due to multiple control points
Solution Approach 1:
Each adjusting member is responsible for controlling the discharge flow rate at its specific local position along the width direction. This localized control allows precise adjustment of coating thickness at different areas independently, ensuring consistent coating quality across the entire substrate while maintaining straightforward operation at each control point.
Data Source
AI summary
The present application discloses a coating die and a coating device. The coating die comprises a die body, a plurality of driving assemblies and a plurality of adjusting members. The die body is provided with a discharge channel communicated to the outside, and the die body is further provided with a communicating pore communicated to the discharge channel; the driving assemblies are detachably connected to the die body; and at least a part of each adjusting member is disposed in the discharge channel, the plurality of adjusting members are all connected to the corresponding driving assemblies through the communicating pore, the driving assemblies are used for driving the adjusting members to move in the discharge channel, and the plurality of adjusting members are arranged in a first direction, the first direction being perpendicular to a movement direction of the adjusting members.