Recessed Panel Door Pressing with Plastic Die Support
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Solution Overview
Problem
Existing door assembly methods face challenges in effectively compressing and deforming lightweight cores between door skins without damaging the skins, especially when dealing with recessed panel designs, and require separate heated presses for adhesive curing.
Innovation Solution
A system utilizing soft, non-marring plastic die sections with raised sections to support recessed panel portions during pressing, allowing for compression of the core and ensuring positive adhesive contact between door skins and the frame, while enabling the use of a single press for initial assembly and subsequent adhesive curing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a separate heated press is used for adhesive curing after assembly, then adhesive bonding strength is improved, but device complexity and production time increase
Solution Approach 1:
The patent combines the assembly press and heated curing press into a single integrated press system. The press performs both the initial assembly function of bonding door skins to the frame and the subsequent curing function of hardening the adhesive, eliminating the need for separate equipment and reducing production steps.
Solution Approach 2:
The press is designed with multi-functionality to perform both assembly and curing operations. By incorporating heating capability into the assembly press, the same device serves dual purposes: mechanically pressing components together and thermally curing the adhesive, thereby simplifying the overall production system.
2Manufacturing precision
If high pressure is applied to compress the lightweight core during pressing, then core compression and deformation are improved, but door skin damage risk increases
Solution Approach 1:
The patent incorporates cushioning elements between the press and the door assembly to protect the door skins during high-pressure compression of the core. The cushioning material absorbs excess pressure and prevents direct transmission of damaging forces to the delicate door skin surfaces while still achieving adequate core compression.
Solution Approach 2:
A protective intermediary layer or cushioning material is introduced between the pressing mechanism and the door assembly. This intermediary element mediates the force transmission, allowing sufficient pressure to compress the lightweight core while preventing direct contact that would cause skin damage.
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 method ensures efficient assembly of doors with recessed panel designs by preventing skin damage and allowing for the use of a single press system for both assembly and adhesive curing, improving production efficiency and reducing equipment needs.
Implementation Method 1
pressing the door assembly between the upper and lower platens of the press with the recessed panel portions supported by the raised sections of the lower and upper die sections, respectively, so that the recessed panel portions press against the core of the door assembly to thereby compress and deform the core therebetween during pressing
Implementation Method 2
applying adhesive to an inside surface of two door skins; laying up a door assembly by stacking an internal frame and lightweight core material between the door skins
Data Source
AI summary
Systems and methods for pressing a door assembly involve one or more die sections installed in a press, wherein the die sections each have a raised section that contacts and supports a recessed panel portion of a door skin of the assembly during the pressing operation to facilitate crushing of portions of a core of the door assembly that underlie the recessed panel portion of the door skin. The die sections may be made of plastic and readily changed out for different sizes or styles of doors.