Coating Unit Automated Thread Exchange Mechanism
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional coating apparatuses require manual interaction for thread exchange, disrupting the continuous coating process and vacuum conditions.
Innovation Solution
A coating unit with a rotatable support and clamps that automate thread exchange, using electrical contacts to heat and evaporate the thread for continuous coating without manual intervention, integrated with a vacuum chamber and a base unit for efficient material deposition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If manual thread exchange is used in conventional coating apparatuses, then the structure is simple, but the coating process is interrupted and vacuum conditions are disrupted
Solution Approach 1:
The coating unit is divided into modular components: a rotatable support with multiple clamps, a drive mechanism, and deflection means. This segmentation allows automated thread exchange while maintaining a manageable overall structure, as each component performs a specific function in the automation sequence.
Solution Approach 2:
Multiple clamps are pre-positioned on the rotatable support at different angular locations. When one clamp finishes coating, the support rotates to bring the next pre-positioned clamp into the coating position, enabling seamless automated thread exchange without interrupting the coating process or vacuum conditions.
2Productivity
If manual thread exchange is performed, then device complexity is low, but productivity decreases due to process interruptions
Solution Approach 1:
The rotatable support with multiple clamps enables continuous coating operation. While one clamp is coating a sample, the support rotates to position the next clamp with fresh thread material, ensuring the coating process never stops and vacuum conditions remain undisturbed, thereby maximizing productivity.
Solution Approach 2:
The support rotates dynamically between clamps based on coating progress. The drive mechanism activates the rotation only when needed for thread exchange, while deflection means individually control each clamp's opening/closing. This dynamic operation achieves continuous productivity without requiring the entire system to be constantly active.
3Extent of automation
If multiple clamps are added for automated exchange, then automation increases, but the device complexity increases
Solution Approach 1:
The rotatable support serves multiple functions: it holds multiple clamps, provides rotation for thread exchange, and positions clamps sequentially in the coating path. This multi-functionality reduces the need for separate mechanisms for each function, thereby limiting the increase in overall device complexity despite the addition of multiple clamps.
Solution Approach 2:
The drive mechanism and deflection means are integrated with the rotatable support structure. The deflection means are positioned to act on clamps as they pass specific angular positions during rotation, combining the rotation function with the individual clamp control function in a unified mechanism rather than requiring separate actuators for each clamp.
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 fully automated thread exchange and coating without manual interference, maintaining vacuum conditions for improved coating quality and efficiency, allowing for precise control and uniform deposition of materials like carbon coatings.
Implementation Method 1
The thread preferably is heated by means of an electrical current such that the material of the thread dissolves by thermal evaporation and deposits onto the sample
Implementation Method 2
the material of the thread dissolves by thermal evaporation and deposits onto the sample
Implementation Method 3
the material of the thread dissolves by thermal evaporation and deposits onto the sample
Data Source
AI summary
A coating unit is introduced which coating unit comprises a thread conveyor. The thread conveyor comprises a first clamp and a second clamp for holding the thread there between. A rotatable support is provided for holding the first and the second clamp. Deflection means are provided in the thread conveyor for consecutively transforming the first and the second clamp from a closed position into an open position and back to a closed position in response to rotating the support. A drive is provided for rotating the support for evoking an unwinding of the thread from a spool if being clamped by the first or the second clamp and for clamping the unwound thread in the second or first clamp respectively in response to rotating the support.