Ionizer Unit for UV-Curable Resin Sheet Unloading
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The difficulty in unloading a workpiece with a protective member formed on one surface, due to intensive peeling charges between the glass ultraviolet radiation applying table and the resin protective sheet, leading to issues with intimate contact and successful unloading of the next protective sheet.
Innovation Solution
A protective member forming apparatus that includes an ultraviolet radiation applying table, a sheet placement unit, a resin supply unit, a pressing unit, an unloading unit, and an ionizer unit, which uses ionized air to neutralize electrical charges and facilitate the unloading of the workpiece by spacing the sheet from the support surface, while a light blocking cover and shutter ensure proper orientation of the ionized air to prevent flapping of the resin sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a protective sheet is placed on the ultraviolet radiation applying table and then a workpiece is pressed to spread liquid resin, then the protective member is successfully formed on the workpiece, but intensive peeling charges occur between the glass table and the resin protective sheet during unloading
Solution Approach 1:
An ionizer unit is introduced as an intermediary device between the protective sheet and the glass table. The ionizer ejects ionized air to neutralize the peeling charges that form during the unloading process, allowing the protective sheet to be removed without difficulty while maintaining the integrity of the formed protective member.
Solution Approach 2:
The electrical charge parameter of the protective sheet is changed from charged to neutral through the application of ionized air. This parameter change eliminates the electrostatic attraction between the protective sheet and the glass table, enabling easy unloading while preserving the formed protective member structure.
2Stability of the object's composition
If the protective sheet is held in intimate contact with the ultraviolet radiation applying table during unloading, then stable positioning is maintained, but the next protective sheet fails to be unloaded due to residual charges
Solution Approach 1:
The ionizer unit serves as a mediator that neutralizes residual charges on the glass table after each protective sheet is removed. This allows the next protective sheet to be placed and unloaded without interference from previous charges, maintaining both stable positioning during processing and continuous productivity across multiple cycles.
Solution Approach 2:
The electrical charge parameter of the glass table surface is reset from charged to neutral between processing cycles. This parameter reset enables each protective sheet to be processed independently with consistent positioning stability while maintaining high productivity through uninterrupted continuous operation.
3Ease of operation
If ionized air is ejected directly at the protective sheet, then charges are neutralized, but the sheet may flap or become misaligned
Solution Approach 1:
The ionizer unit is positioned to eject ionized air at a specific angle and location that targets the charge accumulation areas without directly impacting the protective sheet. This localized application of ionized air neutralizes charges while preserving the sheet's alignment and preventing flapping or misalignment issues.
Solution Approach 2:
Instead of applying ionized air directly onto the protective sheet (one-dimensional contact), the ionizer ejects ionized air at an angle, utilizing spatial dimensionality to neutralize charges in the air gap between the sheet and table. This dimensional approach eliminates direct mechanical interaction that could cause sheet flapping while still achieving effective charge neutralization.
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 effectively reduces the difficulty in unloading a workpiece with a protective member by neutralizing static electricity and maintaining contact between the resin sheet and the support surface, allowing for easy removal of the workpiece with the protective member intact.
Implementation Method 1
an ionizer unit that ejects ionized air to the support surface of the ultraviolet radiation applying table
Implementation Method 2
an ultraviolet radiation source disposed in the ultraviolet radiation applying table are transmittable, a resin supply unit that supplies an ultraviolet-curable liquid resin
Data Source
AI summary
A protective member forming apparatus includes an ultraviolet radiation applying table that supports a workpiece on a support surface of a support plate thereof through which ultraviolet rays are transmittable, a delivery unit that holds a resin sheet to which the workpiece is fixed, to unload the workpiece from the ultraviolet radiation applying table, a resin supply unit that supplies an ultraviolet-curable liquid resin to the resin sheet placed on the support surface, a pressing unit that presses the workpiece from a reverse side thereof toward the liquid resin supplied to the resin sheet placed on the support surface, and an ionizer unit that ejects ionized air to the support surface of the ultraviolet radiation applying table.