WO1997034744A3 - Position-based integrated motion controlled curve sawing - Google Patents

Position-based integrated motion controlled curve sawing Download PDF

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Publication number
WO1997034744A3
WO1997034744A3 PCT/CA1997/000191 CA9700191W WO9734744A3 WO 1997034744 A3 WO1997034744 A3 WO 1997034744A3 CA 9700191 W CA9700191 W CA 9700191W WO 9734744 A3 WO9734744 A3 WO 9734744A3
Authority
WO
WIPO (PCT)
Prior art keywords
workpiece
cutting
transfer
curve
cutting devices
Prior art date
Application number
PCT/CA1997/000191
Other languages
French (fr)
Other versions
WO1997034744A2 (en
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=27359954&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO1997034744(A3) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed filed Critical
Priority to NZ33241997A priority Critical patent/NZ332419A/en
Priority to AU19195/97A priority patent/AU737810B2/en
Publication of WO1997034744A2 publication Critical patent/WO1997034744A2/en
Publication of WO1997034744A3 publication Critical patent/WO1997034744A3/en
Priority to SE9803161A priority patent/SE9803161L/en
Priority to FI982015A priority patent/FI982015A/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27BSAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/007Methods for subdividing trunks or logs essentially involving sawing taking into account geometric properties of the trunks or logs to be sawn, e.g. curvature
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/162With control means responsive to replaceable or selectable information program
    • Y10T83/173Arithmetically determined program
    • Y10T83/175With condition sensor
    • Y10T83/178Responsive to work
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/525Operation controlled by detector means responsive to work
    • Y10T83/531With plural work-sensing means
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/525Operation controlled by detector means responsive to work
    • Y10T83/536Movement of work controlled
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/525Operation controlled by detector means responsive to work
    • Y10T83/538Positioning of tool controlled
    • YGENERAL 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
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00Cutting
    • Y10T83/525Operation controlled by detector means responsive to work
    • Y10T83/541Actuation of tool controlled in response to work-sensing means

Abstract

A method of position-based integrated motion controlled curve sawing includes the steps of: transporting a curved workpiece in a downstream direction on a transfer, and monitoring position of the workpiece on the transfer, scanning the workpiece through an upstream scanner to measure workpiece profiles in spaced-apart array, along a surface of the workpiece and communicating the workpiece profiles to a digital processor, computing by the digital processor, a high order polynomial smoothing curve fitted to the array of workpiece profiles of the curved workpiece, and adjusting the smoothing curve for cutting machine constraints of downstream motion controlled cutting devices to generate an adjusted curve generating unique position cams unique to the workpiece from the adjusted curve for optimized cutting by the cutting devices along a tool path corresponding to the position cams, sequencing the transfer and the workpiece with the cutting devices, and sequencing the unique position cams corresponding to the workpiece to match the position of the workpiece feeding the workpiece, on the transfer, longitudinally into cutting engagement with the cutting devices, and actively relatively positioning the workpiece and the cutting devices relative to each other according to a time-based servo loop updated recalculation, based on said workpiece position, of cutting engagement target position as the workpiece is fed longitudinally so as to position the cutting engagement devices along the tool path.
PCT/CA1997/000191 1996-03-21 1997-03-21 Position-based integrated motion controlled curve sawing WO1997034744A2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
NZ33241997A NZ332419A (en) 1996-03-21 1997-03-21 Position-based integrated motion controlled curve sawing
AU19195/97A AU737810B2 (en) 1996-03-21 1997-03-21 Position-based integrated motion controlled curve sawing
SE9803161A SE9803161L (en) 1996-03-21 1998-09-17 Position-based integrated motion-controlled hook saw
FI982015A FI982015A (en) 1996-03-21 1998-09-18 Location-based integrated motion-controlled pattern sawing

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US1380396P 1996-03-21 1996-03-21
US60/013,803 1996-03-21
US1582596P 1996-04-17 1996-04-17
US60/015,825 1996-04-17
US2508696P 1996-08-30 1996-08-30
US60/025,086 1996-08-30

Publications (2)

Publication Number Publication Date
WO1997034744A2 WO1997034744A2 (en) 1997-09-25
WO1997034744A3 true WO1997034744A3 (en) 1997-12-31

Family

ID=27359954

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CA1997/000191 WO1997034744A2 (en) 1996-03-21 1997-03-21 Position-based integrated motion controlled curve sawing

Country Status (7)

Country Link
US (6) US5884682A (en)
AU (1) AU737810B2 (en)
CA (1) CA2205782C (en)
FI (1) FI982015A (en)
NZ (1) NZ332419A (en)
SE (1) SE9803161L (en)
WO (1) WO1997034744A2 (en)

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Also Published As

Publication number Publication date
CA2205782A1 (en) 1997-09-21
US20030102053A1 (en) 2003-06-05
US20040250917A1 (en) 2004-12-16
FI982015A0 (en) 1998-09-18
US6039097A (en) 2000-03-21
FI982015A (en) 1998-11-10
US7017632B2 (en) 2006-03-28
SE9803161D0 (en) 1998-09-17
US5884682A (en) 1999-03-23
WO1997034744A2 (en) 1997-09-25
AU737810B2 (en) 2001-08-30
NZ332419A (en) 2000-03-27
SE9803161L (en) 1998-11-23
US6520228B1 (en) 2003-02-18
US6039098A (en) 2000-03-21
AU1919597A (en) 1997-10-10
CA2205782C (en) 2002-10-22

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