Membrane Assembly Web Lamination Without Vacuum Deformation
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Solution Overview
Problem
Existing methods for producing membrane assemblies in web-processing processes lack accurate material positioning, which can lead to material damage and deformation, especially when using sensitive materials.
Innovation Solution
A method and apparatus utilizing a central roller with multiple stations for transferring and laminating frame materials and membrane blanks, where the materials are supported by a protective film to prevent damage, and a vacuum or negative pressure is avoided to prevent deformation, allowing for precise positioning and secure lamination without damaging the materials.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If vacuum or negative pressure is used to hold materials on the roller, then material positioning is improved, but sensitive materials suffer deformation and damage
Solution Approach 1:
A protective film is introduced as an intermediary between the frame material and the roller surface. This film allows the material to be held on the roller without direct contact that would cause deformation, eliminating the need for vacuum or negative pressure while maintaining positioning accuracy.
Solution Approach 2:
The system changes from using vacuum/negative pressure (pressure parameter) to using a protective film (surface parameter) for material holding. This parameter change eliminates the harmful effects of vacuum on sensitive materials while maintaining the functionality of secure material positioning.
2Adaptability or versatility
If frame material is provided from a roll, then production flexibility is improved, but material positioning accuracy deteriorates
Solution Approach 1:
The frame material is prepared in advance on a protective film before being transferred to the roller. This preliminary preparation allows the material to be handled and positioned accurately once on the roller, combining the flexibility of roll-fed material with precise positioning during the lamination process.
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
This approach enables accurate and secure positioning of frame materials and membrane assemblies on a rotating central roller, preventing damage and deformation, and allows for flexible production of membrane assemblies with different formats without the need for vacuum or negative pressure, which is particularly advantageous for sensitive materials.
Implementation Method 1
the first frame material is transferred to the central roller at a first station, the membrane blanks are transferred to the central roller at a second station, downstream of the first station in the direction of rotation of the central roller
Data Source
AI summary
The invention relates to a method and an apparatus for producing a membrane assembly in a web-processing process, comprising providing a first frame material (11) and a second frame material (12) as material from a roll, and forming the membrane assembly in a web-processing process, wherein membrane blanks (13) are laminated with the first frame material (11) and the second frame material is laminated with the composite comprising the first frame material (11) and the membrane blanks (13), and wherein the membrane assembly is formed on a rotating central roller (2).