Hybrid Print Curing Apparatus with Interchangeable UV LED and Mercury Arc Cassettes
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Solution Overview
Problem
The transition from traditional UV arc systems to LED print curing apparatus is hindered by high capital investment, increased spare part costs, and differing power requirements, which complicates the selection of appropriate radiation sources for specific ink types and printing applications.
Innovation Solution
A hybrid print curing apparatus with interchangeable cassettes for mercury arc and LED radiation sources, a controller for automatic power adjustment, and a microchip for detecting and configuring the correct power supply and cooling settings, allowing seamless switching between UV, IR, and LED sources without requiring changes to the power supply or plug.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If LED radiation sources are used instead of traditional mercury arc UV lamps, then energy efficiency is improved and environmental friendliness is enhanced, but capital investment cost and spare part cost increase
Solution Approach 1:
The apparatus is designed with a universal housing that can accommodate both LED radiation sources and traditional mercury arc UV lamps through interchangeable cassettes. This multi-functionality allows the same base apparatus to serve different curing needs while maintaining the energy efficiency benefits of LED technology when selected, without forcing expensive upgrades for all applications.
Solution Approach 2:
The radiation source system is segmented into separate interchangeable cassettes that can be independently selected and replaced. This segmentation allows users to choose the appropriate radiation source type (LED or mercury arc) for specific applications, optimizing energy efficiency for LED-based curing while avoiding unnecessary capital investment for traditional UV applications.
2Temperature
If LED radiation sources are installed, then cooling burden is reduced, but power supply requirements change from AC with high voltage ignition to DC without ignition
Solution Approach 1:
The power supply system is designed to be dynamic and adaptable, automatically adjusting its configuration based on the detected radiation source type. When a LED cassette is inserted, the controller switches to DC power supply mode without ignition requirements. When a mercury arc cassette is inserted, the system automatically switches to AC power supply mode with high voltage ignition capability, thus adapting to different power requirements without increasing overall system complexity.
Solution Approach 2:
A detector automatically identifies the type of radiation source cassette inserted into the housing and provides feedback to the controller. Based on this feedback, the controller automatically configures the appropriate power supply settings (AC/DC, ignition requirements, voltage levels), eliminating the need for manual power supply configuration and reducing operational complexity.
3Adaptability or versatility
If interchangeable cassettes with different radiation sources are used, then adaptability to different ink types and applications is improved, but device complexity increases
Solution Approach 1:
The system performs self-configuration through an automatic detection mechanism that identifies the radiation source type and autonomously adjusts power supply settings. This self-service capability eliminates the need for manual intervention to configure different radiation sources, thereby maintaining system simplicity despite the added versatility of interchangeable cassettes.
Solution Approach 2:
The controller is pre-programmed with the specific power requirements and configuration parameters for both LED and mercury arc radiation sources. When a cassette is inserted, the appropriate settings are automatically retrieved and applied in advance, eliminating the need for complex real-time calculations or manual configuration during operation.
4Reliability
If automatic detection of radiation source type is implemented, then operational errors are reduced, but additional detection components and control complexity are required
Solution Approach 1:
A detector acts as an intermediary component between the radiation source cassette and the controller. This detector automatically identifies the cassette type and translates physical characteristics into electrical signals that the controller can process, thereby achieving reliable automatic detection without requiring complex processing algorithms or multiple sensors.
Solution Approach 2:
The mechanical and electrical interface between the cassette and the apparatus is designed to automatically trigger detection and configuration through simple electrical contacts and signal transmission. This substitution of complex mechanical switching and manual configuration with automatic electrical detection reduces operational errors while keeping the control system relatively simple.
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
Enables efficient and cost-effective switching between radiation sources, minimizing errors and ensuring optimal performance and safety by automatically configuring power and cooling settings based on the detected radiation source, thus avoiding performance degradation and reducing the need for frequent replacements.
Implementation Method 1
a housing for receiving a radiation source wherein the radiation source is provided within a cassette and wherein the apparatus comprises at least two interchangeable cassettes wherein a first cassette contains a mercury arc radiation source and a second cassette contains a LED radiation source
Implementation Method 2
Recent improvements in UV curing technology have included the use of light emitting diodes (LEDs) to emit radiation in the UV spectrum
Implementation Method 3
Traditionally UV curing apparatus comprise a UV lamp, such as a mercury arc UV lamp, which produces UV radiation by generating an electric arc inside an ionized gas chamber
Data Source
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AI summary
A print curing apparatus comprising a housing (1) for receiving a radiation source; a controller for controlling the power supplied to the radiation source (7, 7'); a detector for detecting the type of radiation source (7, 7') and for feeding a signal to the controller in order to alter the power supplied accordingly.