Vacuum Reel Test Apparatus for Flexible Screen Coiling
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Solution Overview
Problem
Flexible screens do not fit properly around the reel in coil testing devices, leading to damage and large errors in evaluating coil characteristics due to improper fitting and stress-induced distortions.
Innovation Solution
A testing apparatus with a hollow reel connected to an evacuating device via a gas path, allowing vacuumization to securely attach and coil the flexible screen, and a clamping member to prevent damage and ensure accurate fitting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the flexible screen is coiled on a conventional reel, then the coiling operation can be performed, but the screen does not fit properly around the reel causing damage and measurement errors
Solution Approach 1:
The patent employs a vacuum reel that creates a vacuum environment to hold and coil the flexible screen. The vacuum pressure ensures the screen fits tightly around the reel during coiling operations, preventing improper fitting and stress-induced damage while maintaining measurement accuracy.
Solution Approach 2:
The patent changes the pressure parameter by creating a vacuum environment inside the reel. This parameter change allows the flexible screen to conform properly to the reel surface through pressure differential, ensuring accurate coiling and eliminating fitting errors that occur at atmospheric pressure.
2Measurement precision
If the screen body is loosely coiled on the reel, then the coiling operation is simple, but the coil radius becomes inaccurate leading to large errors in evaluating coil characteristics
Solution Approach 1:
The vacuum reel uses pneumatic principles to create a vacuum that tightly holds the flexible screen during coiling. This ensures the screen maintains accurate coil radius and proper fitting without requiring complex mechanical clamping or positioning mechanisms, thus achieving high measurement precision with relatively simple device structure.
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 ensures accurate and damage-free coil testing by maintaining the flexible screen's integrity and correct coil radius, reducing errors in evaluating coil characteristics.
Implementation Method 1
The reel is connected to a evacuating device through a gas path formed in the hollow structure to enable the evacuating device vacuumizes the inside of the reel to fit the flexible screen attach to the reel and coil around the reel
Data Source
AI summary
A testing apparatus for a flexible screen includes a slide rail, a reel, and a clamping member. The reel is disposed at an end of the slide rail in the extension direction of the slide rail which the axial direction of the reel is perpendicular to. The reel has a hollow structure and is connected to a evacuating device through a gas path formed in the hollow structure to enable the evacuating device to vacuumize inside of the reel to fit the flexible screen and coil around the reel. The reel is configured to affix first end of flexible screen and rotate to coil the flexible screen. The clamping member is configured to clamp a second end of the flexible screen opposite to the first end. The reel is further configured to rotate to drive, through the flexible screen, the reel and the clamping member to slide towards each other along the slide rail.