Bidirectional Vibration Press for Engineered Stone Slabs
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Solution Overview
Problem
The existing methods for manufacturing engineered stone slabs, such as the Breton vacuum vibration press, are cumbersome, expensive, and inefficient, requiring massive weight, high energy consumption, and long production cycles, while also imparting excessive vibration to surrounding structures and using excessive resin.
Innovation Solution
A lightweight vacuum vibration press that applies vibrational energy from both above and below the slab, eliminating the need for a massive inertial base and reducing vibrational energy input, thereby increasing efficiency, reducing resin usage, and shortening production cycles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional Breton vacuum vibration press is used to manufacture engineered stone slabs, then the slabs achieve the required close-packed configuration and non-porous properties, but the equipment requires massive weight (350+ ton inertial base), high energy consumption, and long production cycles
Solution Approach 1:
The patent inverts the traditional single-direction vibration approach by applying vibrational energy from both above and below the slab simultaneously. This bidirectional vibration approach eliminates the need for a massive inertial base, reducing equipment weight from 350+ tons to a much lighter configuration while achieving the same close-packed granule configuration and non-porous properties
Solution Approach 2:
The patent transitions from unidirectional vibration (single dimension) to bidirectional vibration (adding another dimension). By vibrating the slab from both top and bottom surfaces simultaneously, the system achieves more efficient energy distribution throughout the material, eliminating the need for excessive equipment mass while maintaining manufacturing precision
2Manufacturing precision
If a traditional Breton vacuum vibration press is used, then engineered stone slabs are produced with the required properties, but excessive vibrational energy is imparted to surrounding structures
Solution Approach 1:
By inverting the vibration approach to apply force from both directions simultaneously, the patent creates a balanced vibration system that contains vibrational energy within the vacuum chamber rather than allowing it to propagate to surrounding structures. This bidirectional approach achieves the required non-porous properties while minimizing harmful external vibrations
3Manufacturing precision
If a traditional Breton vacuum vibration press is used, then engineered stone slabs achieve the required density and appearance, but excessive resin (6-10% by weight) must be used to fill voids between stone granules
Solution Approach 1:
The bidirectional vibration approach inverts the traditional compaction method, creating more efficient void elimination that requires less resin binder. By vibrating from both directions simultaneously, the system achieves complete void elimination with reduced resin content, lowering material costs while maintaining the non-porous appearance and properties
Solution Approach 2:
The patent changes the vibration parameter configuration from single-direction to bidirectional vibration, which fundamentally alters the compaction efficiency. This parameter change enables the system to achieve the same non-porous quality with reduced resin content (potentially below the traditional 6-10% range), as the bidirectional energy input creates more effective granule rearrangement and void elimination
4Manufacturing precision
If a traditional Breton vacuum vibration press is used, then engineered stone slabs are produced with correct density, but the production cycle is long and energy consumption is high
Solution Approach 1:
By inverting to a bidirectional vibration system, the patent doubles the effective vibration input efficiency, significantly reducing the time required to achieve proper granule packing and slab density. This approach accelerates production while maintaining manufacturing precision, directly improving productivity
Solution Approach 2:
The bidirectional vibration system enables continuous and simultaneous compaction from both directions, eliminating the sequential processes of traditional single-direction vibration. This continuous dual-directional action reduces production cycle time while maintaining the required slab density and quality
Data Source
AI summary
A method of manufacturing engineered stone slabs provides slabs that are equal or superior in appearance and physical properties to slabs manufactured using a conventional Breton press, while weighing less, costing less to manufacture, providing shorter press cycle times, requiring less resin, and consuming less energy. In addition to providing a vibration device above the slab, the press also includes a second vibration device below the slab, which replaces the massive inertial base of a Breton press. The press can be completely enclosed within a vacuum chamber, and vibrationally isolated from surrounding structures. In embodiments, volume reduction blocks reduce the volume to be evacuated. Embodiments use screw jacks and springs or air bags to provide controlled pressing force and precisely uniform slab thickness. Slabs can be inserted and removed on a conveyor belt, or in rigid, self-supporting trays or molds on rollers.