Technology to Sort Lumber by Color and Grain for Furniture Parts

نویسندگان

  • D. Earl Kline
  • Richard W. Conners
  • Philip A. Araman
چکیده

This paper describes an automatic color and grain sorting system for wood edge-glued panel parts. The color sorting system simultaneously examines both faces of a panel part and then determines which face has the “best” color, and sorts the part into one of a number of color classes at plant production speeds. In-plant test results show that the system generated over 91 percent acceptable panels from automatically sorted red oak panel parts, which exceeded target plant production goals. The technology is also capable of grain sorting panel parts. While sorting parts by grain appears promising in laboratory testing, the grain sorting performance of the technology has not yet been tested in an actual production environment. The color sorting system is a patented technology

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Neural Network Classifiers to Grade Parts Based on Surface Defects with Spatial Dependencies

In many manufacturing operations, unfinished or unassembled parts are not necessarily accepted or rejected in their entirety. Oftentimes, they are given some qualifying grade that indicates their worth to potential buyers or their suitability for particular processing operations. The manufacture of hardwood lumber in sawmills follows this general procedure. Lumber is graded based on appearance ...

متن کامل

Impact of human error on lumber yield in rough mills

Rough sawn, kiln-dried lumber contains characteristics such as knots and bark pockets that are considered by most people to be defects. When using boards to produce furniture components, these defects are removed to produce clear, defect-free parts. Currently, human operators identify and locate the unusable board areas containing defects. Errors in determining a defect and its location, known ...

متن کامل

Scanning Hardwood Lumber for Processing and Grading— What to do Now and Why

A cooperative effort between Virginia Tech, the USDA Forest Service, and the industry has led to the development of a new scanning technology to automatically detect lumber grading features that affect the value of the end product. This effort has resulted in several commercial scanning systems now available through Group Seven Systems and Nova Technologies. These systems include a color sortin...

متن کامل

Simulation Software Validation Using Real Data

The optimal cutting of lumber into dimension parts for products like furniture, windows, and mouldings is a challenging problem due to the almost infinite number of possible cutting patterns. Yet, finding the optimal pattern that utilizes the available lumber most efficiently is of paramount importance, as lumber costs are a major expense of producers of solid wood parts. This study used data d...

متن کامل

Comparative Evaluation of the Effect of Color Factor on Desirability of Urban Furniture Case study; Masjed Hakim and Mohammadbagher Sadr Axes in Isfahan City

The color is one of the forgotten elements in designing urban spaces that can provide legible and harmonic environment for citizens in Islamic cities, according to the principles, values, beliefs and natural and climatic features. Unfortunately, the rapid growth of the urbanization phenomenon in recent decades, especially in developing countries, has dramatically changed the urban landscape, th...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:

دوره   شماره 

صفحات  -

تاریخ انتشار 2000