Decorative Panel Edge Formation via Extrusion and Dividing
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Solution Overview
Problem
Laminate floor panels suffer from moisture sensitivity, leading to ticking noises, and vinyl-based panels have high material density, while existing methods for forming beveled edges are inefficient and material-intensive.
Innovation Solution
A method for manufacturing decorative panels with a mineral or thermoplastic substrate, where lower edge areas are formed during a cutting operation using a stationary knife and molds, allowing for accurate positioning and minimal material loss, and involving continuous operations like extrusion and lamination to create profiled edges.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If laminate floor panels are manufactured with MDF or HDF substrate, then the panels can be produced with standard materials and processes, but the panels become moisture-sensitive and develop ticking noises during use
Solution Approach 1:
The patent changes the fundamental parameter of substrate material from organic fiberboards (MDF/HDF) to inorganic mineral-based materials. This parameter change eliminates moisture sensitivity while maintaining manufacturability through established mineral board production processes.
2Shape
If bevelled edge portions are formed by removing material from the edge, then the edges can be shaped to expose core material, but significant material is wasted and the decorative layer is interrupted
Solution Approach 1:
The patent applies preliminary action by forming the bevelled edge profile during the original panel manufacturing process rather than through subsequent material removal. The extrusion die creates the angled edge geometry before the panel is cut, eliminating the need for later machining and preventing decorative layer interruption.
Solution Approach 2:
The patent segments the panel production into distinct functional zones: the main panel body with full decorative layer, and the edge portions with bevelled profiles. This segmentation allows each zone to be optimized independently - the edges for structural interlocking and the face for decorative continuity.
3Shape
If bevelled edge portions are formed by compressing core material, then the top layer can extend uninterruptedly over the bevelled edge, but the core material structure is altered and additional processing steps are required
Solution Approach 1:
The patent eliminates post-manufacturing compression steps by preliminarily forming the bevelled edge profile during extrusion. The die geometry directly creates the compressed edge shape, integrating what would otherwise be a separate processing step into the primary manufacturing operation.
4Reliability
If vinyl-based floor panels are manufactured with high material density, then the panels achieve durability and stability, but the material consumption and weight increase significantly
Solution Approach 1:
The patent employs composite materials by combining mineral-based substrate with thermoplastic components. This composite structure achieves the durability and stability of dense vinyl panels while reducing overall material consumption through the use of lighter-weight mineral core materials.
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 enables efficient production of decorative panels with accurately positioned edges, minimizing material waste and deformation, and maintaining a continuous decorative layer, suitable for floating floor coverings.
Implementation Method 1
providing a continuous mineral or thermoplastic material layer with embedded coupling means by means of an extrusion process
Implementation Method 2
the decorative top layer is applied to the mineral or thermoplastic substrate
Data Source
Figure 1
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AI summary
Method for manufacturing a decorative panel, wherein said panel (1) comprises a substrate (2) and a decorative top layer (3), wherein said substrate (2) is a mineral containing substrate and/or a thermoplastic material containing substrate, wherein said substrate (2) and/or decorative top layer (3) is obtained from a larger material (4) by means of a dividing operation (S1), characterized in that said panel (1) comprises at at least one and preferably at both upper edges (5) of a pair of opposite side edges a lower edge area (6), wherein said lower edge area (6) is obtained during said dividing operation (S1).