Foil Transfer Device with Cooling Fan for Release Property
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing foil transfer devices face challenges in maintaining the easy-to-release property of foil films when heated, leading to suboptimal foil transfer onto sheets.
Innovation Solution
A foil transfer device is designed with a supply reel, take-up reel, heating member, pressure member, separator, and a fan to improve the easy-to-release property of the foil film by controlling temperature and airflow, ensuring effective separation and transfer of the foil layer onto a sheet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the foil film and sheet are heated to high temperatures for effective foil transfer, then the transfer quality is improved, but the easy-to-release property of the foil film deteriorates
Solution Approach 1:
The patent divides the heating process into two distinct stages: a heating stage where the heating member applies heat to transfer the foil onto the sheet, and a cooling stage where a cooling member (fan) removes heat to restore the release property. This temporal segmentation allows each stage to optimize for its specific function without interference from the other.
Solution Approach 2:
The patent implements periodic alternation between heating and cooling actions. The heating member operates to enable foil transfer, then the cooling member activates to remove heat and restore the release property. This periodic cycling of thermal conditions allows the system to achieve both effective transfer and easy release sequentially.
2Productivity
If high temperature heating is applied to transfer foil onto sheet, then transfer efficiency is improved, but overheating and quality degradation occur
Solution Approach 1:
The cooling member is positioned to act on the foil film and sheet immediately after the heating member completes its heating action. This preliminary cooling action prevents excessive temperature accumulation and avoids overheating damage before the next transfer cycle begins.
Solution Approach 2:
The patent converts the harmful effect of heat into a beneficial cycle by using the cooling member to remove excess heat. The heat that could cause overheating damage is instead used to enable transfer, then systematically removed, transforming a potential harm into a controlled, beneficial 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
The device enhances the easy-to-release property of the foil film, improving the transfer process by cooling the foil and sheet with air, thereby maintaining the quality of the transferred foil layer and preventing overheating issues.
Implementation Method 1
a heating member configured to heat the foil film
Implementation Method 2
a first fan configured to blow air toward the foil film positioned between the heating member and the separator
Implementation Method 3
a separator configured to change a direction of travel of the foil film having passed through between the heating member and the pressure member, into a direction different from a direction of conveyance of the sheet
Data Source
AI summary
In a foil transfer device for transferring a transfer layer from a foil film onto a sheet laid on the foil film, the foil film is wound on a supply reel, and taken up on a take-up reel. A heating member heats the foil film, and a pressure member is provided to press the foil film and the sheet between the pressure member and the heating member. A separator changes a traveling direction of the foil film having passed through between the heating member and the pressure member into a direction different from a direction of conveyance of the sheet, to thereby separate the foil film from the sheet. A first fan blows air toward the foil film positioned between the heating member and the separator.