Coating Transfer Holder with Hydrophobic Screen Spacer
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Solution Overview
Problem
The existing coating processes often result in damage to components due to contact with transfer devices, particularly electromagnets, leading to poor coating characteristics and increased rework or rejection rates, especially for smaller components.
Innovation Solution
An apparatus with a holder featuring an electromagnet and a hydrophobic screen spacer that minimizes contact with the component during transfer, using a magnetic coupling and an open mesh design to reduce coating damage, and optionally includes a shield to prevent direct contact with the electromagnet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional electromagnets are used for component transfer, then component transfer is achieved, but coating damage occurs at the contact area
Solution Approach 1:
A non-magnetic, non-conductive spacer material is introduced between the electromagnet and the coated component during transfer. This intermediary prevents direct contact between the electromagnet and the coating surface, eliminating contact damage while still allowing magnetic force to act through the spacer to hold and transfer the component.
Solution Approach 2:
The contact interface between the electromagnet and component is segmented into multiple discrete contact points rather than a continuous surface. This segmentation reduces the total contact area and distributes forces, minimizing coating damage at any single location while maintaining adequate holding force.
2Productivity
If component size is reduced, then processing efficiency improves, but contact damage increases proportionally
Solution Approach 1:
The physical parameters of the electromagnet-component interface are changed by introducing a spacer with specific thickness and material properties. This changes the contact pressure distribution and contact area, allowing small components to be handled without proportional increases in damage, thus maintaining coating quality while preserving processing efficiency for small parts.
3Manufacturing precision
If multiple coating steps are used to ensure good coating on small components, then coating quality improves, but processing time and complexity increase
Solution Approach 1:
The spacer is applied to the electromagnet before the coating process begins and remains in place throughout component handling. This preliminary protective measure prevents contact damage during transfer operations, ensuring that a single coating step produces sufficient quality without requiring multiple corrective coating passes, thereby reducing total processing time.
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 effectively reduces coating damage and improves coating characteristics by minimizing contact areas, allowing for more efficient and damage-free transfer of components through various processing steps, including multiple coating applications.
Implementation Method 1
The holder includes an electromagnet for selectively forming a magnetic coupling with the component
Implementation Method 2
The screen may comprise a hydrophobic material
Data Source
AI summary
An apparatus for transporting a component at least partially coated with a flowable coating material is provided. The apparatus includes a holder adapted for selectively forming a releasable coupling with the component. The holder including a screen for minimizing contact with the component during the transfer. The screen thus serves as a spacer for creating multiple areas of contact with the component, yet the contact is achieved in a manner such that damage to the coating is minimized. Related methods are also disclosed.