NO920530L - Fremgangsmaate og apparat til sortering av toemmer - Google Patents

Fremgangsmaate og apparat til sortering av toemmer

Info

Publication number
NO920530L
NO920530L NO92920530A NO920530A NO920530L NO 920530 L NO920530 L NO 920530L NO 92920530 A NO92920530 A NO 92920530A NO 920530 A NO920530 A NO 920530A NO 920530 L NO920530 L NO 920530L
Authority
NO
Norway
Prior art keywords
log
timber
ultrasonic
quality grade
length
Prior art date
Application number
NO92920530A
Other languages
English (en)
Other versions
NO920530D0 (no
Inventor
Michael J Mack
Original Assignee
Blount Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Blount Inc filed Critical Blount Inc
Publication of NO920530D0 publication Critical patent/NO920530D0/no
Publication of NO920530L publication Critical patent/NO920530L/no

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
    • B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
    • B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
    • B07C5/04—Sorting according to size
    • B07C5/12—Sorting according to size characterised by the application to particular articles, not otherwise provided for
    • B07C5/14—Sorting timber or logs, e.g. tree trunks, beams, planks or the like
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/08—Felling trees
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
    • A01G23/00—Forestry
    • A01G23/02—Transplanting, uprooting, felling or delimbing trees
    • A01G23/099—Auxiliary devices, e.g. felling wedges
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B17/00—Measuring arrangements characterised by the use of infrasonic, sonic or ultrasonic vibrations
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/04—Analysing solids
    • G01N29/07—Analysing solids by measuring propagation velocity or propagation time of acoustic waves
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
    • G06Q10/00—Administration; Management
    • G06Q10/04—Forecasting or optimisation specially adapted for administrative or management purposes, e.g. linear programming or "cutting stock problem"
    • G06Q10/043—Optimisation of two dimensional placement, e.g. cutting of clothes or wood
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02854—Length, thickness
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/531—With plural work-sensing means
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/525—Operation controlled by detector means responsive to work
    • Y10T83/541—Actuation of tool controlled in response to work-sensing means

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Business, Economics & Management (AREA)
  • General Physics & Mathematics (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Human Resources & Organizations (AREA)
  • Ecology (AREA)
  • Environmental Sciences (AREA)
  • Strategic Management (AREA)
  • Economics (AREA)
  • Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Pathology (AREA)
  • General Health & Medical Sciences (AREA)
  • Biochemistry (AREA)
  • Analytical Chemistry (AREA)
  • Development Economics (AREA)
  • Chemical & Material Sciences (AREA)
  • Game Theory and Decision Science (AREA)
  • Immunology (AREA)
  • Entrepreneurship & Innovation (AREA)
  • Marketing (AREA)
  • Operations Research (AREA)
  • Quality & Reliability (AREA)
  • Tourism & Hospitality (AREA)
  • General Business, Economics & Management (AREA)
  • Theoretical Computer Science (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

Det beskrives et tømmerhøstings-system hvor tømmeret på hugstfeltet sorteres automatisk ved hjelp av ultrasonisk testing. Ultralydbølgepulser sendes inn i tømmerstokken for påvisning av innvendige defekter inne i tømmerstokken ved hjelp av endringer i ultralydbølgepulsenes gjennomløpstid gjennom i det minste et parti av tømmerstokken. En datamaskin anvendes til å bestemme tømmerstokkens kvalitetsgrad og til på grunnlag av data for gjennomgangstid og signaler som vedrører tømmerstokkens lengde og diameter, å frembringe et utgaende kvalitetsgradssignal. Ved hjelp av en merkeinnretning merkes tør.jnerstokken med en maling i en avvikende farge for derved å vise dens kvalitetsgrad, i respons til mottaket av det utgaende kvalitetsgradssignal. Et apparat for ultrasonisk testing kan koples til et trehøstingshode som har en sag for felling av treet og for å sage tømmerstokken til den egnede lengde og kvistingskniver til fjerning av grener, med sikte på å teste tømmerstokken for tømmerdefekter idet tømmerstokken føres gjennom det ovennevnte hodet. Ifølge en utførelsesform, er et par ultrasoniske transduserhjul montert på motsatte sider av tømmerstokken og par av sende- og mottakstransdusere koples selektivt til tømmerstokken gjennom væskesammenkop- lingskammere som er frembragt på hjulenes ytre overflate idet hjulene roterer langs tømmerstokkens lengde.
NO92920530A 1991-04-25 1992-02-11 Fremgangsmaate og apparat til sortering av toemmer NO920530L (no)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US07/691,749 US5097881A (en) 1991-04-25 1991-04-25 Ultrasonic log grading

Publications (2)

Publication Number Publication Date
NO920530D0 NO920530D0 (no) 1992-02-11
NO920530L true NO920530L (no) 1992-10-26

Family

ID=24777809

Family Applications (1)

Application Number Title Priority Date Filing Date
NO92920530A NO920530L (no) 1991-04-25 1992-02-11 Fremgangsmaate og apparat til sortering av toemmer

Country Status (6)

Country Link
US (1) US5097881A (no)
BR (1) BR9200510A (no)
CA (1) CA2061218A1 (no)
FI (1) FI920654A (no)
NO (1) NO920530L (no)
SE (1) SE9200483L (no)

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US5747693A (en) * 1992-11-06 1998-05-05 The United States Of America As Represented By The Secretary Of The Army System for taking transverse measurements
DE4408970A1 (de) * 1993-04-30 1994-11-03 Siemens Ag Einrichtung zum Erfassen des Durchmessers und/oder der Lage des Zentrums eines runden Gegenstandes
CA2131056C (en) * 1994-08-29 2000-07-18 Robert James Murray Method and apparatus for bucksawing logs
US5804728A (en) * 1994-09-07 1998-09-08 The Regents Of The University Of California Method and apparatus for non-intrusively detecting hidden defects caused by bio-deterioration in living trees and round wood materials
US5515895A (en) * 1995-03-07 1996-05-14 Hamby, Jr.; Thomas E. Tree delimbling device with self-aligning cutter head assembly
FR2751593B1 (fr) * 1996-07-24 1998-09-04 Saint Gobain Vitrage Vitrage feuillete equipe d'un detecteur
US5704407A (en) * 1996-09-16 1998-01-06 Hamby, Jr.; Thomas E. Tree delimbing device
SE509719C2 (sv) 1997-05-29 1999-03-01 Hultdin System Ab Sågdon
US6026689A (en) * 1998-02-25 2000-02-22 Weyerhaeuser Company Log cutting optimization system
US6295907B1 (en) * 1998-04-16 2001-10-02 Perceptron, Inc. Method and apparatus for on-line monitoring of log sawing
CA2321576C (en) * 1998-02-26 2007-12-04 Perceptron, Inc. Ultrasonic apparatus for characterizing wooden members using a measurement of wave distortion
CA2321525A1 (en) 1998-02-27 1999-09-02 Massachusetts Institute Of Technology Acoustic tree and wooden member imaging apparatus
US6467352B2 (en) 1998-04-16 2002-10-22 Percepton, Inc. Method and apparatus for on-line monitoring of log sawing
NZ333434A (en) * 1998-12-17 1999-10-28 Carter Holt Harvey Ltd Determining log length by passing ultrasonic signal through log, and using length information to determining cut positions
US6769306B2 (en) * 1998-12-17 2004-08-03 Carter Holt Harvey Limited Log cutting procedures
CA2273541A1 (en) 1999-06-03 2000-12-03 Canadian Forest Products Ltd. A method of lumber preparation to improve drying and treatment and development of a new engineered wood composite
CA2380988C (en) * 1999-07-30 2009-01-06 Carter Holt Harvey Limited Log testing apparatus
US6755297B2 (en) * 2001-07-03 2004-06-29 Hi-Tech Engineering, Inc. Symbol printer
FI116679B (fi) * 2001-10-25 2006-01-31 Jarmat Oy Menetelmä ja merkintäväri puun merkitsemiseksi
US6829938B2 (en) * 2002-10-04 2004-12-14 The Johns Hopkins University Method and apparatus for selecting trees for harvest
NZ536400A (en) * 2004-11-04 2007-05-31 Fibre Gen Instr Ltd Timber harvesting apparatus
NZ545247A (en) * 2005-02-11 2007-05-31 Waratah Nz Ltd Method and apparatus for assessing or predicting the characteristics of wood
EA011414B1 (ru) * 2005-07-15 2009-02-27 А-Сорт Аб Средства и способ классификации бревен
US7938156B2 (en) * 2006-04-20 2011-05-10 Weyerhaeuser Nr Company Method for optimizing lumber
WO2009072968A1 (en) * 2007-12-07 2009-06-11 A-Sort Ab Method and arrangement for log classification
SE533023C2 (sv) * 2008-04-16 2010-06-08 Log Max Ab Bestämning av grovlek hos en trädstam
RU2480326C2 (ru) * 2011-06-15 2013-04-27 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Братский государственный университет" Способ окорки лесоматериалов ультразвуком в воздушной среде
CA2907295C (en) * 2014-10-09 2021-05-04 W. Daniel Hamby Scanning system for hardwood flooring
SE543792C2 (sv) * 2018-09-27 2021-07-27 Logscom Ab System för märkning

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SE353958B (no) * 1967-04-19 1973-02-19 Asea Ab
US3722263A (en) * 1970-12-21 1973-03-27 Ithaco Ultrasonic inspection apparatus
US3759384A (en) * 1971-09-01 1973-09-18 B Holmberg Apparatus for grading lumber
SE380464B (sv) * 1974-05-08 1975-11-10 Hammars Mekaniska Verkstad Ab Sett att bedoma och lengdsetta virke och anordning vid justerverk for utforande av settet
SE398450B (sv) * 1975-10-15 1977-12-27 Umea Mekaniska Ab Forfarande och anordning for fergmerkning av stockar
CA1043463A (en) * 1975-12-05 1978-11-28 Paul A. Mueller Lumber inspection and optimization system
US4207472A (en) * 1975-12-05 1980-06-10 The Bendix Corporation Lumber inspection and optimization system
US4027528A (en) * 1975-12-15 1977-06-07 Tyree Bill D Apparatus for ultrasonic inspection of ferromagnetic materials
US4099420A (en) * 1977-06-03 1978-07-11 Cornell Research Foundation, Inc. Transducer positioning apparatus
US4356850A (en) * 1980-09-29 1982-11-02 Black Clawson, Inc. Veneer lathe scanning system
US4412297A (en) * 1980-10-06 1983-10-25 Black Clawson, Inc. Ultrasonic log scanning and orientation system
US4785817A (en) * 1986-10-10 1988-11-22 Cornell Research Foundation, Inc. Method and apparatus for ultrasonic grading of meat

Also Published As

Publication number Publication date
AU648867B2 (en) 1994-05-05
CA2061218A1 (en) 1992-10-26
FI920654A0 (fi) 1992-02-14
US5097881A (en) 1992-03-24
BR9200510A (pt) 1992-12-01
FI920654A (fi) 1992-10-26
SE9200483L (sv) 1992-10-26
AU1089592A (en) 1992-10-29
SE9200483D0 (sv) 1992-02-18
NO920530D0 (no) 1992-02-11

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