Thermoforming Device Simultaneous Sheet Heating and Substrate Attachment
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Solution Overview
Problem
The vacuum press laminate forming device requires separate time for substrate attachment and sheet heating, making it difficult to reduce cycle time and achieve high-efficiency continuous manufacturing.
Innovation Solution
A thermoforming device with a hot plate and substrate supply portion that allows simultaneous heating of the sheet and attachment/detachment of the substrate, integrating the heating process into the attachment time and enabling continuous sheet supply and efficient substrate movement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If separate time is allocated for substrate attachment and sheet heating, then each process can be completed thoroughly, but cycle time increases and manufacturing efficiency decreases
Solution Approach 1:
The patent combines the substrate attachment process and sheet heating process into a single integrated operation. The heating plate simultaneously performs both functions: attaching the substrate to the base and heating the sheet to the required temperature. This merging of operations eliminates the need for separate time allocation while maintaining the quality of both processes.
Solution Approach 2:
The heating plate is designed to perform multiple functions: it serves as both the attachment mechanism for the substrate and the heating source for the sheet. This multi-functional design allows the same component to accomplish what previously required separate dedicated components and processes, thereby reducing cycle time while maintaining manufacturing precision.
2Reliability
If sequential processing is used for substrate attachment and sheet heating, then each step can be controlled independently, but overall production efficiency is reduced
Solution Approach 1:
The patent merges the substrate attachment function and sheet heating function into a single simultaneous operation using the heating plate. This allows both processes to occur together rather than sequentially, improving productivity while maintaining reliable control through the integrated design of the heating plate system.
3Temperature
If dedicated heating time is allocated after substrate attachment, then the sheet can be heated to required temperature, but the total process time increases
Solution Approach 1:
The patent implements preliminary heating action by starting the sheet heating process simultaneously with the substrate attachment process, rather than waiting for attachment to complete. The heating plate begins heating the sheet immediately while the substrate is being attached, thereby reducing the total time required to achieve the required sheet temperature.
Solution Approach 2:
The heating process is merged with the substrate attachment process, allowing both to occur simultaneously. This eliminates the need for dedicated heating time after attachment, as the heating occurs during the attachment phase itself, thereby reducing total process time while still achieving the required temperature.
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 approach reduces cycle time by incorporating sheet heating into the substrate attachment process, eliminating the need for separate heating time and improving manufacturing efficiency.
Implementation Method 1
a hot plate (3) including a heating surface (3a) facing vertically downward... heating of the sheet using the hot plate
Data Source
AI summary
A thermoforming device includes: a base configured to hold a substrate; a hot plate including a heating surface facing vertically downward; a sheet transport portion that supplies a sheet onto the heating surface of the hot plate; and a substrate supply portion configured to attach the substrate to the base and detach the substrate from the base, and to dispose the substrate at a substrate supply position positioned in a lower area of the sheet which is opposite to a side of the sheet in which the heating surface is provided. In the thermoforming device, heating of the sheet using the hot plate and attachment and detachment of the substrate with respect to the base are performable at the same time, and the sheet heated and softened by the hot plate is attached to the substrate at the substrate supply position.