Laminating Apparatus Convex Frame Pressing Rubber Thickness Uniformity
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Solution Overview
Problem
Existing laminating apparatuses face challenges in achieving uniform thickness of laminates due to variations in thickness during the lamination of base materials with convex portions and resin films, leading to quality failures and reduced yield.
Innovation Solution
A laminating apparatus with advanceable and retreatable press blocks equipped with pressing rubbers featuring convex frames on their peripheral edges, which are heated to ensure even pressure and prevent film protrusion, thereby maintaining uniform thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a pressing rubber is uniformly pressed against the entire surface of the film, then the film is evenly pressed, but the end portions of the film spread outward causing thickness variation
Solution Approach 1:
The pressing rubber is designed with a convex frame structure where the peripheral edge portion has a different shape (convex/outward protruding) compared to the central portion. This local structural differentiation prevents film spreading at the edges while maintaining even pressing in the central area, thereby achieving uniform thickness without causing harmful film spreading.
2Reliability
If the pressing rubber is pressed against the film to laminate base material and film, then lamination is achieved, but thickness variation occurs at center and end portions
Solution Approach 1:
The pressing rubber features a convex frame structure where the peripheral edge portion protrudes outward beyond the outline of the base material. This local structural modification ensures that the pressing force is distributed evenly across the film surface while the convex edges prevent film spreading, thereby achieving both reliable lamination and uniform thickness without the thickness variation that occurs with conventional uniform pressing rubbers.
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 apparatus effectively prevents film protrusion and achieves improved uniformity in laminate thickness, enhancing the yield and production efficiency of the laminated products.
Implementation Method 1
a first pressing rubber mounted inside the first press block, and a second pressing rubber mounted inside the second press block
Implementation Method 2
the pressing device further includes a first heat source capable of heating the first press block
Data Source
AI summary
Provided is a laminating apparatus configured to improve the uniformity of the thickness of a laminate to be obtained to improve the yield of a product, such as a laminate. The laminating apparatus includes a pressing device including a first press block that is advanceable and retreatable, a second press block arranged to face the first press block, a first pressing rubber mounted inside the first press block, and a second pressing rubber mounted inside the second press block, the first pressing rubber and the second pressing rubber facing each other, the first pressing rubber having formed on a surface thereof facing the second pressing rubber a convex frame configured to surround a peripheral edge portion thereof.