Adjustable Tear-Off Edge Coating Device for Profile Adaptation
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Solution Overview
Problem
Existing coating devices require significant effort to reset or adapt to new profiles, limiting their flexibility and efficiency in coating elongated profiles such as window frames and floor coverings.
Innovation Solution
A coating device with a coating chamber under negative pressure, featuring tools with tear-off edges that can be adjusted outside the chamber, allowing for easy adaptation to new profiles and precise control of the coating area through adjustable air flow and masking masks, ensuring accurate coating boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the tool with cutting edge is located inside the coating chamber, then the coating boundary is precisely controlled, but the adjustment to new profiles requires disassembling and accessing the coating chamber, making it time-consuming and complex
Solution Approach 1:
The tool with the cutting edge is extracted from inside the coating chamber and mounted on the outside, allowing it to be adjusted independently without accessing the coating chamber interior. This external mounting enables simple tool replacement or repositioning by manipulating only the external mounting mechanism, significantly reducing adjustment complexity and time while maintaining precise coating boundary control through the tear-off edge configuration
Solution Approach 2:
The tool is divided into a separable mounting portion and a cutting edge portion. The mounting portion is attached to the exterior of the coating chamber while the cutting edge extends inward to define the coating boundary. This segmentation allows the tool to be adjusted or replaced independently without affecting the coating chamber structure, enabling rapid adaptation to different profiles
2Manufacturing precision
If the tool is readjusted during the coating process, then coating accuracy can be improved, but the adjustment process causes downtime and reduces productivity
Solution Approach 1:
The tool with the cutting edge is pre-configured with the appropriate tear-off edge geometry for different profile types and pre-mounted on the exterior of the coating chamber. When a profile change is required, the pre-prepared tool can be quickly swapped or adjusted without interrupting the coating chamber operation, allowing precision adjustments to be made with minimal downtime and maintaining high productivity
3Manufacturing precision
If the tear-off edge is made longer than the coating chamber extension, then the coating boundary is better controlled, but the tool size and adjustment range increase
Solution Approach 1:
Instead of extending the tool length significantly in the longitudinal direction, the tool is mounted at an angle or positioned in a different spatial dimension outside the coating chamber. The tear-off edge extends parallel to the workpiece transport direction but is positioned externally, allowing it to effectively control the coating boundary without requiring excessive tool length that would complicate the adjustment mechanism
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
Enables faster and more efficient adaptation to different profiles during coating, preventing overspray and ensuring a clean, precise coating line, even on profiles with undercuts, by allowing external adjustment of the tear-off edges and utilizing negative pressure to manage air flow and excess coating material.
Implementation Method 1
a vacuum is maintained in the coating chamber and the coating surface is bounded by at least one tool with a tear-off edge
Implementation Method 2
The negative pressure present in the coating chamber reduces the coating to the desired area and removes excess coating material from the workpiece
Implementation Method 3
The airflow in the coating chamber also creates an airflow between the workpiece and the tool's cutting edge, resulting in a clean boundary line up to which the workpiece is coated
Data Source
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AI summary
The invention relates to a coating device (1) comprising a coating chamber (17), in which at least one coating agent (2) is provided, which applies a coating to the coating surface (15) of a workpiece, which moves through the coating chamber in a transport direction (x), wherein in the coating chamber (17) a negative pressure is applied and the coating surface is delimited by at least one tool (6, 7) comprising a tear-off edge and the coating chamber (17) is delimited by an inlet die and and outlet die (11). The present invention further relates to a method for coating the coating surface (15) of a workpiece with a coating agent (2), wherein the coating surface is delimited by at least one tool (6, 7) with a tear-off edge (18).