Movable Rail Coating System for Long Workpieces
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Solution Overview
Problem
Coating elongated workpieces, such as rotor blades, is challenging due to the need to minimize movement of the workpiece to avoid oscillation and the complexity of designing and ventilating long lacquering apparatuses, which results in inefficiencies and quality issues.
Innovation Solution
A modular lacquering system where the movement rail can be moved relative to a stationary reference point, allowing a shorter rail length of 5-10 meters to suffice for workpieces up to 20-70 meters long, with the lacquering robot having good accessibility and the ability to assume different positions, and a lacquering cabin that can be moved with the workpiece to accommodate its length, reducing manufacturing effort and complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a long movement rail is provided to accommodate elongated workpieces, then the workpiece can be coated completely, but the device complexity and ventilation requirements increase significantly
Solution Approach 1:
The invention makes the movement rail movable relative to the stationary reference point, transforming it from a fixed structure to a dynamic one. This allows the rail to be repositioned along the workpiece during coating operations, enabling complete coverage of elongated workpieces without requiring an excessively long fixed rail structure.
Solution Approach 2:
The coating process is divided into multiple sections along the workpiece length. The movable movement rail allows the lacquering robot to access different sections sequentially, effectively segmenting the coating operation into manageable portions that can be handled by a shorter rail system.
2Adaptability or versatility
If a long movement rail is used for elongated workpieces, then complete coverage is achieved, but the ventilation and air filtration requirements become excessively complex
Solution Approach 1:
By making the movement rail movable rather than fixed, the system reduces the effective length of the cabin and ventilation system required. The rail can be positioned to coat specific sections, allowing a more compact ventilation and air filtration system to serve the entire workpiece coating process.
3Adaptability or versatility
If the workpiece is moved during coating to accommodate long workpieces, then the coating process can proceed, but oscillation occurs and coating quality deteriorates
Solution Approach 1:
The movable movement rail allows the coating system to remain stationary relative to the workpiece while still accessing different sections along its length. This eliminates the need to move the workpiece itself during coating, preventing oscillation and maintaining coating quality.
Solution Approach 2:
Instead of moving the workpiece to accommodate the coating process, the invention inverts the approach by making the coating system movable along the stationary workpiece. This reverses the traditional paradigm and eliminates the oscillation problem.
Data Source
AI summary
An arrangement for coating a workpiece with a working surface comprises a movement rail and a lacquering robot. The movement rail is moveable relative to a stationary reference point parallel to the working surface. The lacquering robot is disposed on the movement rail and is moveable on the movement rail. A lacquering cabin for coating a workpiece comprises at least two chassis parallel to one another and a lacquering apparatus with an opening. The lacquering apparatus is supported on the two chassis and is moveable with the chassis. A method for coating a workpiece using a lacquering cabin comprises subdividing the workpiece into adjacent sections, moving the lacquering cabin to a position corresponding to a section, and coating the section.