Roller-Guided Substrate Carrier Handling for Dust Reduction
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Solution Overview
Problem
The conventional substrate carrying device generates dust due to friction between the substrate carrier and the carrier body, affecting the cleanliness of the production environment.
Innovation Solution
A carrying device with a carrier body featuring loading grooves equipped with protruding blocks, first rollers, and second rollers, which facilitate rolling contact between the substrate carrier and the rollers, reducing friction and dust generation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the substrate carrier is placed directly into the loading groove, then the operation is simple and fast, but dust is generated due to friction between the substrate carrier and the loading groove walls
Solution Approach 1:
The patent introduces rollers as intermediary elements between the substrate carrier and the loading groove. These rollers mediate the contact interaction, allowing the substrate carrier to be placed into the loading groove while rolling rather than sliding directly against the groove walls, thereby reducing friction and dust generation without complicating the placement operation
Solution Approach 2:
The patent replaces the direct sliding friction mechanism with a rolling friction mechanism by incorporating rollers. This substitution changes the fundamental mechanical interaction from sliding contact to rolling contact, significantly reducing friction coefficients and preventing dust generation while maintaining operational simplicity
2Device complexity
If the substrate carrier is placed directly into the loading groove, then the structure is simple, but the friction between substrate carrier and loading groove generates dust affecting production environment
Solution Approach 1:
The rollers serve as intermediary components that are relatively simple in structure but effectively eliminate dust generation. They are mounted on the loading groove walls and provide a rolling surface that prevents direct contact between the substrate carrier and the groove, maintaining structural simplicity while solving the dust problem
Solution Approach 2:
The patent employs cylindrical rollers that introduce curved rolling surfaces into the loading groove structure. This curvature enables rolling motion instead of sliding, reducing friction and dust generation while adding minimal structural complexity to the overall device
3Device complexity
If the substrate carrier is placed directly into the loading groove, then no additional components are needed, but impact force is generated due to gravity causing greater friction and dust
Solution Approach 1:
The rollers act as intermediary elements that absorb and distribute the impact force generated when the substrate carrier is placed into the loading groove. By providing a rolling contact surface, they gradually accommodate the substrate carrier's weight, reducing impact forces and preventing dust generation without requiring additional complex damping components
Solution Approach 2:
The rollers are pre-installed on the loading groove walls to provide cushioning protection before the substrate carrier is placed. This beforehand preparation ensures that when the substrate carrier is inserted, the rollers are already in position to reduce impact forces through rolling contact, preventing dust generation from the outset
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 device effectively minimizes dust generation during the placement and retrieval of substrate carriers, maintaining a cleaner production environment by utilizing rollers with low friction coefficients.
Implementation Method 1
the substrate carriers will not directly rub against the side walls of the loading groove, but will instead rub against the high hardness and low friction coefficient of the rollers to create rolling contact, thus avoiding the generation of dust
Data Source
AI summary
A carrier device for substrate carriers is provided, having loading grooves on the upper part of a carrier body. Protruding blocks are formed on opposite sides of the loading grooves. Each protruding block is rotatably provided with first rollers protruding into the loading groove, and the bottoms of the loading grooves are rotatably provided with second rollers. Abase of the carrier body is also provided with positioning grooves, positioning blocks are formed on opposite sides of the positioning grooves, and the positioning blocks are rotatably provided with positioning rollers protruding into the positioning groove. The upper side of the substrate carrier is vertically placed into the loading groove guided by the first rollers and supported on the second rollers, while the lower end of the substrate carrier is guided by the positioning rollers and enters the positioning groove for positioning, thereby preventing dust generated from the friction.