3D Substrate Laminate Coating with Dual Radiant Heaters
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Solution Overview
Problem
Current methods for coating 3D-substrates with laminates are inefficient, requiring over 300 seconds per cycle and requiring significant operator intervention, limiting their suitability for commercial or industrial applications.
Innovation Solution
A method and device that utilize a forming tool with a pressure bell and heat radiators to apply a laminate to a 3D-substrate in a controlled manner, reducing cycle time to under 60 seconds by using a combination of upward and downward radiating heat radiators to heat the laminate and substrate, and a pressure medium pressure of 2-18 bar to ensure precise application and adhesion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional thermal forming methods are used to coat 3D-substrates with laminates, then the laminate can be applied to the substrate, but the cycle time exceeds 300 seconds and requires significant operator intervention
Solution Approach 1:
The laminate is pre-positioned in the forming tool before the substrate is introduced. The heat radiators are pre-positioned and can be quickly activated. The pressure bell is pre-configured to apply pressure once the substrate is in place. This preliminary arrangement of components eliminates the need for operator intervention during the actual coating process, reducing cycle time from over 300 seconds to under 60 seconds.
Solution Approach 2:
The system is designed to automatically perform the coating operation once the substrate is placed in the tool. The heat radiators automatically heat the laminate and substrate, the pressure bell automatically applies pressure, and the laminate is automatically pressed onto the substrate. This self-service mechanism eliminates continuous operator intervention and significantly reduces cycle time.
2Reliability
If a laminate is heated and pressed onto a 3D-substrate using traditional methods, then adhesion is achieved, but the process requires over 300 seconds and lacks precision in application
Solution Approach 1:
The system uses controlled parameter changes to achieve reliable adhesion quickly. The heat radiators activate to raise the temperature of the laminate and substrate to optimal bonding temperatures. The pressure bell then applies controlled pressure (2-18 bar) to ensure precise application and strong adhesion. This coordinated parameter change sequence achieves reliable bonding in under 60 seconds, improving both reliability and reducing time loss.
Solution Approach 2:
The heating and pressing operations are performed continuously and simultaneously rather than sequentially with idle time between steps. The heat radiators continuously heat the laminate and substrate while the pressure bell continuously applies pressure once activated. This continuous useful action eliminates idle time and achieves both reliable adhesion and fast cycle time.
3Device complexity
If heat radiators are positioned far from the laminate and substrate, then the device structure is simpler, but the heating process becomes inefficient and extends cycle time
Solution Approach 1:
The heat radiator arrangement is designed to be movable rather than fixed. The radiators can be dynamically positioned close to the laminate and substrate during the heating phase to maximize heating efficiency, then retracted to their starting positions after heating is complete. This dynamic positioning achieves both simple device structure (radiators remain in compact retraction cavities) and high heating efficiency (radiators are close to the workpiece during operation), reducing cycle time without increasing permanent complexity.
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 method significantly reduces cycle time, improves adhesion and gluing strength, and enhances the quality and variety of coated products, making it suitable for commercial applications.
Implementation Method 1
at least one upward radiating heat radiator and with at least one downward radiating heat radiator; and in order to heat the laminate the heat radiator arrangement is moved from at least one retraction cavity into an intermediary space between the laminate and the 3D-substrate to be coated and the laminate is heated in a controlled manner by the upward radiating heat radiators and the surface of the 3D-substrate to be coated is heated in a controlled manner by the downward radiating heat radiators
Implementation Method 2
a pressure medium pressure of 2-18 bar is set in the pressure bell interior space by introducing a fluid pressure medium pressure fluid
Data Source
AI summary
A forming tool is used, which has a tool trough arranged in a stationary manner and a pressure bell, which can be lowered onto and lifted away from the tool trough. An arrangement is created in which a single- or multi-layer, initially flat, flexible laminate separates the trough interior from the pressure-bell interior in a pressure tight manner. A table, on which the 3-D substrate to be coated is located, assumes a lowered position within the trough interior; there is a considerable, free intermediate space (between the laminate and the 3-D substrate. A radiant-heater assembly is inserted into said intermediate space. The radiant-heater assembly has a carrier, on the top side of which radiant heaters that can be activated are attached and on the bottom side of which radiant heaters that can be activated are attached.