Pneumatic Ball Platform Control for Liquid Crystal Panel Measurement
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Solution Overview
Problem
Existing measuring apparatuses for liquid crystal panels face measurement errors and reduced productivity due to the inflation of pneumatic balls after the measuring head moves, causing platform instability and longer balancing times.
Innovation Solution
A measuring apparatus with a controlling device that calculates and controls the air inflation amount and time for pneumatic balls during the movement of the measuring head, ensuring the platform remains horizontal by inflating the corresponding pneumatic ball before it reaches the next measuring point.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the inflator inflates the pneumatic ball after the measuring head moves to the corresponding measuring location, then the platform can be kept balanced, but the platform inclines during the inflation process causing measurement errors and reducing productivity
Solution Approach 1:
The controlling device calculates the required air inflation amount in advance based on the measuring head's position and movement speed, then controls the inflator to inflate the pneumatic ball before the measuring head reaches the corresponding measuring location. This preliminary action prevents platform inclination before it occurs, eliminating measurement errors while maintaining productivity.
2Stability of the object's composition
If the inflator inflates the pneumatic ball after the platform descends, then the platform can be restored to horizontal position, but the measurement process is interrupted and productivity is reduced
Solution Approach 1:
The system performs the inflation action in advance based on predicted platform inclination, rather than reacting after the platform has descended. This allows the platform to remain horizontal throughout the measurement process, eliminating interruptions and maximizing productivity.
Solution Approach 2:
The controlling device continuously monitors the measuring head's position and calculates the required inflation amount in real-time, adjusting the inflation process to match the measuring head's movement. This feedback mechanism ensures the platform remains horizontal without interrupting the measurement process.
3Strength
If the pneumatic ball is inflated after compression, then the platform can be supported, but the inflation process causes platform vibration and measurement errors
Solution Approach 1:
The inflator is controlled to inflate the pneumatic ball before the measuring head reaches the position that would cause compression. This timing prevents the harmful vibration and inclination effects, providing smooth platform support without disturbing the measurement 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 solution reduces platform vibration, minimizes measurement errors, and enhances productivity by maintaining platform stability during the scanning process.
Implementation Method 1
pneumatic balls 83 respectively arranged on the supporting posts 84 for supporting the platform 81... the pneumatic balls 83 are arranged under the platform 81 and can be filled with air so as to support the platform 81
Implementation Method 2
an inflator (not shown in the drawing) is used for inflating the pneumatic ball 83b to gradually increase the volume of the pneumatic ball 83b
Data Source
AI summary
The present disclosure provides a measuring apparatus including a platform, a measuring head movably arranged on the platform, pneumatic balls supporting the platform, an inflator, and a controlling device controlling the inflator to inflate the pneumatic balls while the measuring head is moving towards a next measuring point from a current measuring point. The controlling device controls the inflator to inflate the pneumatic balls with the required air inflation amount within the required time evenly during the movement of the measuring head, therefore, the vibration of the platform during the movement of the measuring head and the inflation of the pneumatic ball can be reduced, which can keep the platform horizontal quickly after the measuring head stops moving, reduce the measurement errors of the measuring head, further improve the productivity of the liquid crystal panel. The present disclosure further provides a controlling method of the above measuring apparatus.