Window Transfer Stage with Protrusions for Static-Free Handling
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Solution Overview
Problem
Large-area thin glass windows are prone to sagging and damage during transfer due to static electricity generated when using a fork-shaped robot hand, especially when stacked with slip sheets.
Innovation Solution
A window transfer method involving a stage with protrusion parts that press the slip sheet layer, allowing the window layer to be suctioned to the stage without contacting the slip sheet, thereby preventing static electricity and damage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a fork-shaped robot hand is used to transfer the window layer, then the transfer operation can be performed, but static electricity is generated and the slip sheet is transferred together with the window layer causing damage
Solution Approach 1:
A stage is introduced as an intermediary device between the robot hand and the window layer. The stage includes a porous layer that allows selective suction: it can suction the window layer through its pores while preventing the slip sheet from being suctioned, thus avoiding static electricity damage and slip sheet transfer issues
Solution Approach 2:
The stage incorporates a porous layer with specific pore structures that enable selective permeability. The porous material allows the window layer to pass through and be suctioned while blocking the slip sheet, solving the problem of static electricity generation and slip sheet adhesion during transfer
2Productivity
If the window layer is suctioned directly without a porous layer, then transfer efficiency is high, but the slip sheet is also suctioned causing damage
Solution Approach 1:
The porous layer on the stage enables selective suction based on material properties. The window layer can pass through the porous structure while the slip sheet is blocked, maintaining transfer efficiency while preventing slip sheet damage
Solution Approach 2:
The porous layer provides different properties at different levels: it is permeable to the thin window layer while impermeable to the thicker slip sheet, enabling selective transfer based on local material characteristics
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 method effectively prevents damage to the window layers by avoiding static electricity and creases, ensuring the window layers are transferred safely and securely.
Implementation Method 1
a porous layer may be attached to the lower surface of the stage, and the window layer may be in contact with the porous layer and may be vacuum-suctioned to the stage
Implementation Method 2
transferring the stage to be adjacent to an upper surface of the window layer and to allow a plurality of protrusion parts attached to side surfaces of the stage to press a portion of a slip sheet layer
Data Source
AI summary
A window transfer method and a window manufacturing method using a window transfer method are provided. A window transfer method includes preparing a stage, transferring the stage over a loading part on which a window layer is loaded, transferring the stage to be adjacent to an upper surface of the window layer and to allow a plurality of protrusion parts attached to side surfaces of the stage to press a slip sheet layer arranged under the window layer and exposed outside the window layer, and suctioning the window layer to a lower surface of the stage to separate the window layer from the slip sheet layer.