Heated Edge Bevel Forming for High-Filler Building Panels
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Solution Overview
Problem
Existing methods face difficulties in creating desirable embossings or bevels on building panels with high-filler content, such as Luxury Vinyl Tiles (LVT) and Stone Plastic Composite (SPC) panels, which are typically rigid and durable but lack efficient manufacturing techniques for forming aesthetic features like embossings or bevels.
Innovation Solution
A method involving heating and applying pressure to form a bevel along the edge of a building panel, where the panel comprises an inorganic filler of 50-85 wt% and a polymer-based material, including a substrate with inorganic fillers like calcium carbonate and a polymer-based material, and forming the bevel by applying pressure to the edge portion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If building panels with high inorganic filler content (50-85 wt%) are used to achieve rigidity and durability, then the panel strength and durability are improved, but the ability to form desirable embossings or bevels deteriorates due to the rigid material properties
Solution Approach 1:
The patent applies local heating to change the temperature parameter of the panel material, transforming it from a rigid state to a softened state that can be easily formed. This temporary parameter change allows the high-filler-content material to be molded into desired shapes without compromising its inherent strength and durability properties
Solution Approach 2:
The patent performs preliminary heating of the panel material before forming operations to soften the rigid high-filler-content material. This preliminary thermal treatment prepares the material for subsequent molding or embossing operations, enabling complex shapes to be formed without requiring changes to the material composition
2Device complexity
If conventional manufacturing methods are used for building panels, then the production process is simple, but the creation of aesthetic features like embossings or bevels on high-filler-content panels becomes difficult or impossible
Solution Approach 1:
The patent introduces thermal energy as an intermediary medium between the forming tool and the rigid panel material. The heat acts as a mediator that temporarily modifies the material properties, enabling precise embossing or bevel formation without requiring complex mechanical force application or specialized tooling
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 the creation of aesthetically appealing bevels on building panels, enhancing their appearance and facilitating efficient manufacturing processes by controlling elasticity and recovery effects through cooling, allowing for a broader range of materials to be used.
Implementation Method 1
heating at least an edge portion of an edge of the building panel, along which edge the bevel is to be formed
Implementation Method 2
forming the bevel in the edge portion by applying pressure to the portion
Data Source
AI summary
A method to manufacture a bevel at least partly along at least one edge of a building panel, such as a floor panel or wall panel, where the building panel comprises a substrate having an inorganic filler of an amount of 50-85 wt % and a polymer-based material. The method comprising heating at least an edge portion of an edge of the building panel, along which edge the bevel is to be formed, and forming the bevel in said edge portion by applying pressure to said portion, where the bevel is at least partly formed in the substrate.