Sheet Glass Alignment System Using Servo Push Rods
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Solution Overview
Problem
The existing sheet glass alignment system for LCD and OLED displays faces issues with uneven pressure distribution during substrate detachment, leading to deformation and reduced production yield due to the degradation of rubber elements, which results in varying bubble sizes and uneven pressure application.
Innovation Solution
The system employs stainless steel push rods driven by servo step motors to evenly distribute pressure by replacing the rubber elements, ensuring synchronized and precise detachment of substrates from the alignment platforms.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If rubber elements are used for bubbling to detach substrates, then the structure is simple and operation is easy, but the rubber elements deform after repeated charges and discharges, causing uneven pressure distribution and substrate deformation
Solution Approach 1:
The patent replaces durable but complex mechanical push rods with inexpensive, replaceable rubber elements. Although the rubber elements deform after repeated use, they can be easily replaced without affecting the overall system structure. This resolves the contradiction by accepting the short service life of cheap components to maintain system simplicity and ease of manufacture.
Solution Approach 2:
The patent introduces adjustable air pressure parameters to compensate for rubber element deformation. By controlling the charging pressure and duration, the system maintains sufficient bubbling force even as rubber elements age and deform, thereby maintaining pressure distribution uniformity throughout the operational lifecycle of the rubber elements.
2Device complexity
If rubber elements are used for substrate detachment, then the structure remains simple, but the ages of rubber elements vary causing different bubble sizes and uneven pressure application
Solution Approach 1:
The patent uses adjustable air pressure parameters to compensate for variations in rubber element age and condition. By dynamically controlling the charging pressure, the system ensures that bubbles of consistent size are generated even when rubber elements have different service histories, thereby maintaining manufacturing precision without increasing device complexity.
Solution Approach 2:
The system allows operators to visually inspect and replace rubber elements based on their condition. This self-service approach enables timely replacement of degraded rubber elements before they cause significant pressure distribution issues, maintaining bubble size consistency without requiring complex automated monitoring systems.
3Productivity
If rubber elements are charged repeatedly for substrate detachment, then the operation is easy and continuous, but the rubber elements degrade leading to reduced production yield
Solution Approach 1:
The patent accepts that rubber elements have limited service lives due to repeated charging cycles. However, since they are inexpensive and easily replaceable, the system maintains high productivity by quickly swapping degraded elements without interrupting the overall production flow, thus preserving both operation continuity and production yield.
Solution Approach 2:
The system incorporates monitoring mechanisms that detect when rubber elements degrade and alert operators for replacement. This feedback loop ensures that degraded elements are replaced before they cause substrate deformation or production defects, maintaining high production yield while allowing continuous operation with minimal interruptions.
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 ensures even pressure distribution across the substrates, preventing deformation and enhancing the production yield of panel display devices by maintaining consistent pressure during the detachment process.
Implementation Method 1
the first air holes 110 are vacuumed to attach the upper substrate 200 to the upper alignment platform 100
Implementation Method 2
respectively charging the first and the second rubber elements 190, 390 through the first and the second stepped holes 130, 330, to bubble the first and the second rubber elements 190, 390
Data Source
AI summary
The present invention provides a sheet glass alignment system. The sheet glass alignment system comprises: an upper alignment platform and a lower alignment platform (1, 3) which are oppositely located; the upper alignment platform (1) is capable of moving up and down relative to the lower alignment platform (3); the upper alignment platform and the lower alignment platform (1, 3) respectively comprise a plurality of first and second stepped holes (13, 33) penetrating upper and lower surfaces thereof, and each of the first stepped holes (13) comprises a first wide portion (131) facing the lower alignment platform (3) and a first narrow portion (132) connecting to the first wide portion (131), and each of the second stepped holes (33) comprises a second wide portion (331) facing the upper alignment platform (1) and a second narrow portion (332) connecting to the second wide portion (331); first and second sucking discs are respectively installed on the first and the second wide portions (131, 331); a plurality of first and second push rods (19, 39) are respectively inserted into the plurality of first and second stepped holes (13, 33) and capable of moving up and down along axes of the plurality of first and second stepped holes (13, 33) where the plurality of first and second push rods (19, 39) are positioned therein.