Irregular Bevel Cutting System for Hand-Scraped Wood Flooring
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Solution Overview
Problem
Machine-produced hand-scraped wood flooring lacks the unique, varied appearance and natural feel of manually scraped floors, as it often features uniform bevel edges that fail to replicate the hand-hewn characteristics.
Innovation Solution
A beveling system that randomly moves a plank's edges toward and away from stationary bevel tools, varying the width and depth of bevel cuts to create irregular, hand-scraped-like edges, simulating the appearance of manually scraped wood.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If machine scraping is used to produce flooring, then productivity is improved, but the uniform appearance is created which lacks the natural feel of hand-scraped flooring
Solution Approach 1:
The system employs a movable plank positioner that dynamically adjusts the plank's position relative to stationary bevel tools during the beveling process. This dynamic positioning creates variable bevel widths and depths, replicating the natural irregularities of hand-scraped flooring while maintaining machine production efficiency. The plucker mechanism moves the plank back and forth in a controlled manner to achieve this effect.
Solution Approach 2:
The invention copies the essential characteristics of hand-scraped flooring by using a mechanical system that replicates the irregular bevel patterns created by manual scraping. The stationary bevel tools combined with plank movement create a copy of the hand-scraped appearance, preserving the authentic look while enabling mass production.
2Manufacturing precision
If uniform bevel edges are produced by machine, then manufacturing precision is improved, but the hand-hewn characteristics are lost
Solution Approach 1:
The system deliberately introduces dynamic variation through the movable plank positioner, which changes the plank's position relative to the bevel tools during operation. This creates controlled irregularities in bevel width and depth that replicate hand-hewn characteristics while maintaining overall process control and precision.
Solution Approach 2:
The invention intentionally creates asymmetric bevel edges with varying widths and depths along the plank length. The plucker mechanism introduces random variations that produce asymmetric patterns, contrasting with the symmetric uniformity of traditional machine beveling, thereby achieving the hand-hewn aesthetic.
3Shape
If stationary bevel tools are used with movable plank, then the appearance of hand-scraped wood is achieved, but device complexity increases
Solution Approach 1:
Instead of moving the bevel tools to create variable bevels, the invention inverts the approach by keeping the tools stationary and moving the plank. This reversal simplifies the tooling system while achieving the same effect, as the plank movement naturally creates the irregular patterns needed for hand-scraped appearance.
Solution Approach 2:
The movable plank positioner utilizes the plank's own movement through the system to create the irregular bevel patterns. The plucker mechanism allows the plank to move back and forth relative to the stationary tools, making the workpiece itself participate in creating the desired variation, thereby reducing the need for complex adjustable tooling.
Data Source
AI summary
A system is provided for creating bevel edges on a plank. In some embodiments, the system comprises two bevel-cutting tools disposed in fixed positions and two guided cylinders disposed to independently move two edges of a plank to within varying degrees of contact with the bevel-cutting tools. Separate controllers can be provided to independently control the time, frequency, and rate of movement of the guided cylinders. Methods are provided for creating the appearance of a hand-scraped wood plank. A method for creating irregular bevel edges on a plank is also provided as are a system and method that use a plank production line operation. A plank having irregular beveled edges and the appearance of a hand-scraped wood plank is also provided.