Multi-Die Heat Sealing System Independent Temperature Control
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Solution Overview
Problem
Existing heat sealing systems for substrate layers lack precise temperature control, leading to inconsistent heat seals and potential damage to materials due to variations in heating conductor resistances and temperatures.
Innovation Solution
A system with movable dies and a power supply that monitors and maintains the resistance of heating conductors to specific target values, ensuring consistent temperature control during the heat sealing process by using separate power supplies for each die set and independent temperature monitoring and power supply for each heating conductor.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a single power supply is used for multiple heating conductors, then device complexity is reduced, but temperature control precision deteriorates due to inability to independently monitor and adjust each conductor's resistance
Solution Approach 1:
The patent divides the power supply system into separate power supply units for each heating conductor. Each power supply independently monitors and controls its corresponding heating conductor's resistance, enabling precise temperature control without compromising system complexity
Solution Approach 2:
The patent implements feedback control by continuously monitoring the resistance of each heating conductor and adjusting the power supply accordingly. The system uses the monitored resistance values to maintain target temperatures, creating a closed-loop control mechanism that improves temperature precision
2Device complexity
If heating conductors are not individually monitored, then device complexity is reduced, but heat sealing quality deteriorates due to temperature variations causing inconsistent seals and material damage
Solution Approach 1:
The patent segments the monitoring function by assigning separate monitoring capabilities to each heating conductor. This allows individual tracking of resistance changes and temperature variations, enabling precise control of heat sealing quality without excessive system complexity
Solution Approach 2:
The patent employs feedback mechanisms where the resistance of each heating conductor is continuously monitored and used to adjust power delivery. This ensures consistent temperature maintenance throughout the heat sealing process, improving seal uniformity and preventing material damage
3Ease of operation
If target resistance values are not maintained, then ease of operation is improved, but heat sealing reliability deteriorates due to temperature deviations causing inconsistent results
Solution Approach 1:
The patent implements self-service control where the power supply system automatically adjusts power delivery based on monitored resistance values. The system maintains target temperatures without requiring manual intervention, ensuring reliable heat sealing while keeping operations simple
Solution Approach 2:
The patent uses feedback control to automatically correct temperature deviations by adjusting power supply based on resistance monitoring. This maintains target resistance values and temperature consistency, ensuring reliable heat sealing results without complex manual control
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
This solution ensures consistent and precise heat sealing, reducing material damage and improving the quality of heat seals by maintaining heating conductors at predetermined target temperatures, thereby enhancing the efficiency and reliability of the heat sealing process.
Implementation Method 1
The first die may have a first heating conductor and the second die may have a second heating conductor
Implementation Method 2
The power supply system may monitor the temperature of each of the first, second, third and fourth heating conductors by monitoring the resistance of each of the first, second, third and fourth heating conductors, wherein the resistance of the heating conductors varies proportionally with temperature
Data Source
AI summary
A process is provided for heat sealing substrate layers. The process comprising: conveying an upper die having a heating conductor and a lower die having a heating conductor to a sealing region, where a substrate is applied to one or more items; activating a power supply system; monitoring, via the power supply system, a temperature of the heating conductor of the upper die when in the sealing region; monitoring, via the power supply system, a temperature of the heating conductor of the lower die when in the sealing region, wherein the monitoring of the temperature of the heating conductor of the upper die is performed independently of the monitoring of the temperature of the heating conductor of the lower die; supplying power to the upper die based on the temperature of the heating conductor of the upper die; supplying power to the lower die based on the temperature of the heating conductor of the lower die, wherein the power is supplied to the lower die independently of the power being supplied to the upper die.