Engineered Stone Slab Forming for Realistic Veining and Uniform Thickness
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Solution Overview
Problem
Existing methods for producing engineered stone slabs fail to replicate the natural, random-looking veins and color patterns of natural stones, and often result in uneven material distribution leading to wastage and increased thickness requirements.
Innovation Solution
A method involving the use of stirring devices to disrupt composite mixtures on a conveyor belt, applying colorants to simulate veining, followed by controlled compression with press rollers to embed patterns, and subsequent cutting and rotation of layers to achieve a realistic aesthetic, ensuring even material distribution and consistent slab thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional layering and compression methods are used, then the engineered stone slab can be produced, but the natural random-looking veins and color patterns cannot be replicated
Solution Approach 1:
The patent applies vibration to the composite material during the forming process to create natural-looking veining patterns. The vibration causes the material to settle and flow in organic, random patterns that mimic natural stone veining, resolving the contradiction between achieving realistic patterns and maintaining ease of manufacture.
Solution Approach 2:
The patent changes physical parameters such as vibration frequency, amplitude, and duration to control the development of veining patterns. By adjusting these parameters, the system can produce varied natural-looking patterns without complex manual intervention, achieving both realism and manufacturing efficiency.
2Manufacturing precision
If composite material is compressed to achieve flat surface, then slab thickness can be controlled, but material distribution becomes uneven leading to wastage
Solution Approach 1:
The patent applies preliminary vibration to the composite material before final compression to pre-distribute the material evenly and eliminate air pockets. This preliminary action ensures uniform density and reduces the need for excessive compression, thereby minimizing material wastage while achieving consistent thickness.
Solution Approach 2:
The patent maintains continuous vibration throughout the compression process to ensure continuous even material distribution. This continuous action prevents localized unevenness that would require additional material or rework, reducing overall wastage while maintaining precise thickness control.
3Stability of the object's composition
If multiple compression stages are used to achieve even distribution, then material uniformity improves, but production time increases
Solution Approach 1:
The patent uses mechanical vibration as a single-stage process to achieve rapid and uniform material distribution. The vibration accelerates particle settling and eliminates the need for multiple gradual compression stages, maintaining high material uniformity while significantly reducing production time.
Solution Approach 2:
The patent skips the traditional multiple-stage compression process by using vibration to rapidly achieve uniform distribution in a single stage. This rushing through of the intermediate steps maintains composition stability while improving production speed and efficiency.
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 produces engineered stone slabs with realistic veining and consistent thickness, reducing material waste and costs by enabling continuous production and precise control over veining patterns and slab dimensions.
Implementation Method 1
processed through a crushing machine to reduce the size of the combined particles. The resultant, finer mixture may be evenly distributed into a supporting mold, tray, or other supporting structure. The mixture may also be slightly compressed to make the surface of the distributed material flatter and smooth.
Implementation Method 2
The mold or tray containing the damp mixture is then moved onto a conveyor belt with a backing sheet, then a processed damp 'slab' is moved into a vacuum press machine to compress the material.
Implementation Method 3
The compressed material is then placed into a curing machine to be heated into a hardened quartz slab.
Data Source
AI summary
A method for producing engineered stone slabs including steps of depositing a composite material onto a supporting structure; disrupting the composite material using a plurality of stirring devices attached to a shifting structure; depositing colorant in a predefined region in the composite material using a spray device to form a colored disrupted composite material; and using a first device to press, flatten and stretch the composite material into a slab after disrupting and depositing colorant. The step of disrupting may occur before, after, or during the step of depositing colorant. The step of disrupting the composite material or the step of depositing colorant may include causing the shifting structure to move along a width of the supporting structure. Prior to depositing the composite material onto the supporting structure, and after compressing the composite material, the composite material may be fragmented into a plurality of fragments of composite material.