Electrostatic Tacking Membrane for Non-Planar Carbon Fiber Handling
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Solution Overview
Problem
Conventional electrostatic pad designs for moving dry carbon fiber sheets in manufacturing environments face limitations, including inefficiency in handling non-planar surfaces and the need for separate tools for positioning and heating.
Innovation Solution
The electrostatic tacking membrane assembly (ETMA) combines electrostatic pads and tacking elements on a flexible membrane, allowing for electrostatic adhesion and heating of carbon fiber sheets, and is designed to conform to non-planar surfaces.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional electrostatic pad designs are used for moving dry carbon fiber sheets, then electrostatic adhesion can be achieved, but the pads cannot effectively handle non-planar surfaces and require separate tools for heating
Solution Approach 1:
The patent combines electrostatic adhesion pads and heating elements into a single integrated assembly. The heating elements are embedded within the electrostatic pad structure, allowing simultaneous electrostatic pickup and thermal processing of carbon fiber sheets in one operation, eliminating the need for separate heating tools
Solution Approach 2:
The electrostatic pad assembly serves multiple functions: electrostatic adhesion for pickup, heating for thermal processing, and positioning. This multi-functional design allows a single tool to perform operations that previously required multiple separate devices, improving versatility especially for non-planar surfaces
2Productivity
If separate tools are used for positioning and heating carbon fiber sheets, then each function can be performed independently, but productivity decreases due to multiple operation steps
Solution Approach 1:
By merging electrostatic adhesion and heating functions into one integrated assembly, the patent enables simultaneous performance of pickup, positioning, and heating operations. This eliminates the sequential time required for separate tool operations, directly improving productivity and reducing operational time
Solution Approach 2:
The integrated assembly allows continuous useful action by maintaining electrostatic adhesion while simultaneously applying heat during the entire positioning and processing time. The heating function operates continuously during the pickup and positioning operations, eliminating idle time between separate operations
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 ETMA enables efficient pick-and-place operations on both planar and non-planar surfaces, improving productivity and reliability by integrating adhesion and heating functions into a single flexible assembly.
Implementation Method 1
A voltage may be applied across the pads to create an electrostatic adhesion potential across the pads, and the pads may then be moved to a position near or in contact with a carbon sheet. With the pads positioned near or in contact with the sheet, the electrostatic adhesion potential may be used to attract and electrostatically adhere the sheet to the pads
Implementation Method 2
providing electrical power to the one or more tacking elements so as to electrically heat the selected tacking elements, thereby bonding together the two or more layers of material proximate the overlapped or abutted area
Data Source
AI summary
An electrostatic tacking membrane assembly includes a membrane made of an elastic material, a plurality of electrostatic pads disposed on the membrane, one or more tacking elements disposed on the membrane, and a plurality of electrical leads disposed within or on the membrane and connected with the electrostatic pads and the one or more tacking elements. The electrostatic tacking membrane assembly may be positioned with the tacking elements disposed near or in contact with an overlapped or abutted area of two or more layers of material, and the tacking elements may be electrified and heated so as to bond together the two or more layers proximate the overlapped or abutted area.