Wood Panel Manufacturing via Segmented Slat Assembly
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Solution Overview
Problem
The existing methods for producing wooden boards and blocks are complex and costly due to the need for additional sawing steps to achieve the required length of slat strands, leading to inefficiencies and waste.
Innovation Solution
The method involves dividing raw boards into slats of specific lengths to ensure that assembled slat strands have the desired overall length, eliminating the need for separate sawing and minimizing waste, with slats being glued together with their longitudinal sides and pressed to form blocks or panels, and using finger joints for added strength and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If raw boards are divided into shorter slats to remove imperfections, then quality of wooden panels is improved, but production complexity and time increase due to multiple assembly steps
Solution Approach 1:
The raw board is segmented into multiple slats of different lengths, where each slat is designed to span specific defect-free zones. The segmentation strategy ensures that imperfections are excluded while maintaining efficient use of raw material, reducing the number of slats needed compared to traditional equal-length approaches
Solution Approach 2:
The method performs preliminary planning of slat lengths and positions before actual cutting and assembly. By pre-determining the optimal configuration of slats based on defect locations and panel requirements, the system minimizes unnecessary cutting steps and assembly operations, thereby reducing overall production complexity
2Manufacturing precision
If additional sawing steps are performed to achieve required strand length, then manufacturing precision is improved, but production time and cost increase
Solution Approach 1:
The required strand length is incorporated into the preliminary planning stage, where slat lengths are calculated to achieve the target strand length through assembly alone. This pre-calculation eliminates the need for post-assembly sawing operations, maintaining precision while reducing production time
Solution Approach 2:
The invention extracts the length adjustment operation from the post-assembly stage and integrates it into the preliminary slat design stage. By determining appropriate slat lengths beforehand, the method removes the need for additional sawing steps that would otherwise be required to achieve the correct strand length
3Loss of substance
If slats are cut to minimize waste, then material efficiency is improved, but manufacturing precision for strand assembly becomes more difficult
Solution Approach 1:
The raw board is segmented into slats with specifically optimized lengths that account for both waste minimization and defect avoidance. The segmentation algorithm calculates slat boundaries to maximize material utilization while ensuring each slat spans only defect-free zones, thereby maintaining both material efficiency and assembly precision
Solution Approach 2:
The method dynamically adjusts slat length parameters based on defect locations and panel requirements. By varying slat lengths according to specific needs rather than using uniform lengths, the system optimizes material usage while maintaining the precision required for proper strand assembly
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 simplifies the production process, reduces waste, and enhances the strength and stability of the final products by ensuring precise length and alignment of slats, thereby lowering production costs and time.
Implementation Method 1
The longitudinal sides of the slats are joined together using adhesive to form strands of slats
Implementation Method 2
The strands of slats are pushed into a press where they are compressed to form blocks or panels
Data Source
Figure 1~4
Figure 5~7
AI summary
Raw boards (2) are divided into lamellae (8), which are then assembled into lamella strands (11, 22). These strands are glued together to form panels and/or blocks. The raw boards (2) are divided so that the lamellae (8) are of a length sufficient to assemble the lamella strand (11, 22) with a predetermined total length (12). This ensures a minimum length, particularly for the end pieces, within the lamella strand (11, 22). The assembled lamella strand (11, 22) does not require further cutting to the required total length (12) in an additional step.