EP0055793A3 - Method and apparatus for trimming the edges of planks - Google Patents

Method and apparatus for trimming the edges of planks Download PDF

Info

Publication number
EP0055793A3
EP0055793A3 EP81106664A EP81106664A EP0055793A3 EP 0055793 A3 EP0055793 A3 EP 0055793A3 EP 81106664 A EP81106664 A EP 81106664A EP 81106664 A EP81106664 A EP 81106664A EP 0055793 A3 EP0055793 A3 EP 0055793A3
Authority
EP
European Patent Office
Prior art keywords
board
trimming
boards
edges
tree
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
EP81106664A
Other languages
German (de)
Other versions
EP0055793A2 (en
EP0055793B1 (en
Inventor
Karl-Wolfram Wiegand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dimter GmbH
Original Assignee
Dimter GmbH
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 Dimter GmbH filed Critical Dimter GmbH
Priority to AT81106664T priority Critical patent/ATE12607T1/en
Publication of EP0055793A2 publication Critical patent/EP0055793A2/en
Publication of EP0055793A3 publication Critical patent/EP0055793A3/en
Application granted granted Critical
Publication of EP0055793B1 publication Critical patent/EP0055793B1/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/04—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for edge trimming
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B27B31/06—Adjusting equipment, e.g. using optical projection
    • 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
    • Y10T83/444—Tool engages work during dwell of intermittent workfeed
    • Y10T83/463—Work-feed element contacts and moves with work
    • Y10T83/4635—Comprises element entering aperture in, or engaging abutment surface on, work
    • 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
    • Y10T83/768—Rotatable disc tool pair or tool and carrier
    • Y10T83/7684—With means to support work relative to tool[s]
    • Y10T83/7693—Tool moved relative to work-support during cutting

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Sawing (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)
  • Orthopedics, Nursing, And Contraception (AREA)
  • Baking, Grill, Roasting (AREA)
  • Massaging Devices (AREA)

Abstract

A method and apparatus for trimming boards, wherein a first stage, a first mechanism initially fixes and cuts two positioning short end cuts for each board. These positioning short end cuts are then used for advancing the board into the corresponding cutting plane of a second mechanism for trimming the board. As a result, it is possible to take into account the natural growth of a tree (all trees become thinner towards the top) and produce the minimum of trimmed waste. Because the natural growth of a tree to a conical shape, the positioning end cuts of a board will frequently define two non-parallel cutting lines for the edges of the board. The trimming in the second mechanism can be performed by different tools, e.g. by saws or one or more milling cutters. If a milling cutter is used, the boards can also be positioned in such a way that the sloping edges of the board resulting from the substantially circular cross-section of a tree can be taken into account. i.e., an inclined trimming takes place, taking into account the natural shape of the board so that there is a minimum of waste in this trimming dimension. If two cutters are used, the two stepped milling tools can be arranged in such a way that the largest diameter portion of one cutter is associated with the smallest diameter portion of the other cutter. In this case, the cut profiles on the edges of two adjoining boards that are cut by the two cutters match one another and fit together, so that without further manipulation, gluing in a joint gluing installation is possible. The boards are transported through the trimming mechanism in the desired manner by a pair of stops, a slide and a pair of ejectors. These members function in such a way that the desired cutting quality and shape are obtained for the board, while producing minimum waste.
EP81106664A 1980-12-27 1981-08-27 Apparatus for trimming the edges of planks Expired EP0055793B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81106664T ATE12607T1 (en) 1980-12-27 1981-08-27 DEVICE FOR TRIMMING WOODEN BOARDS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19803049258 DE3049258A1 (en) 1980-12-27 1980-12-27 METHOD AND DEVICE FOR TRIMING WOODEN BOARDS
DE3049258 1980-12-27

Publications (3)

Publication Number Publication Date
EP0055793A2 EP0055793A2 (en) 1982-07-14
EP0055793A3 true EP0055793A3 (en) 1983-08-03
EP0055793B1 EP0055793B1 (en) 1985-04-10

Family

ID=6120435

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81106664A Expired EP0055793B1 (en) 1980-12-27 1981-08-27 Apparatus for trimming the edges of planks

Country Status (7)

Country Link
US (1) US4449558A (en)
EP (1) EP0055793B1 (en)
AT (1) ATE12607T1 (en)
DE (2) DE3049258A1 (en)
FI (1) FI812806L (en)
NO (1) NO812921L (en)
SU (1) SU1103786A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4619163A (en) * 1984-07-09 1986-10-28 Brown Irving J Automatic mitering apparatus
US4676130A (en) * 1986-02-25 1987-06-30 Filer & Stowell Co., Inc. Lumber edger
US5179883A (en) * 1990-07-30 1993-01-19 Hans Payr Apparatus for dividing wood
DE4114836A1 (en) * 1991-04-25 1992-10-29 Josef Hildebrand Edging system for solid timber on circular saw bench - uses conventional timber advance, and table with straight sharp parallel edges to hold timber
US10118785B2 (en) 2015-02-23 2018-11-06 Chs Automation Assembly and process for a press feed mechanism for providing rapid, efficient and tuned hold and release displacement of an upper feed roller relative to a lower roller and between which is communicated a sheet material for subsequent feeding into a press operation
CN112248138A (en) * 2020-09-11 2021-01-22 邹自强 Cutting and forming equipment for wood board processing

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420976A (en) * 1920-11-02 1922-06-27 Dickerson Glue Jointer Company Lumber-joining machine
US1795953A (en) * 1930-02-14 1931-03-10 Arthur B Johnson Lap-joint-forming machine
DE855491C (en) * 1942-04-12 1952-11-13 Daimler Benz Ag Connecting rod with split bearing
FR1068740A (en) * 1952-08-01 1954-06-30 Automatic edger with two fixed blades
GB1031675A (en) * 1962-01-18 1966-06-02 Wadkin Ltd Improvements in or relating to planing or facing machines
US3276492A (en) * 1962-12-21 1966-10-04 Stora Kopparbergs Bergslags Ab Method and apparatus for trimming timber by means of mutually adjustable parallel cutting members
DE1453014A1 (en) * 1962-10-19 1968-12-19 Ask Jonas Waldemar Method and device for the production of rectangular boards from boards with inclined surfaces
CH472941A (en) * 1968-01-24 1969-05-31 Meyrat & Luisoni Process for machining a bar material and installation for implementing this process
DE1628884A1 (en) * 1967-12-29 1971-12-23 Otto Kreibaum Method and device for the production of cut timber from conically growing stems
GB1484738A (en) * 1975-01-25 1977-09-01 Storti G Apparatus for automatically trimming lengths of wood
US4167961A (en) * 1978-04-13 1979-09-18 New England Log Homes, Inc. Planer and groover

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4240477A (en) * 1979-05-29 1980-12-23 Saab-Scania Aktiebolag Movable support assembly for a board infeed system
SU918095A1 (en) * 1979-09-28 1982-04-07 Всесоюзный проектно-конструкторский и технологический институт мебели Device for milling the edges of wooden parts

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1420976A (en) * 1920-11-02 1922-06-27 Dickerson Glue Jointer Company Lumber-joining machine
US1795953A (en) * 1930-02-14 1931-03-10 Arthur B Johnson Lap-joint-forming machine
DE855491C (en) * 1942-04-12 1952-11-13 Daimler Benz Ag Connecting rod with split bearing
FR1068740A (en) * 1952-08-01 1954-06-30 Automatic edger with two fixed blades
GB1031675A (en) * 1962-01-18 1966-06-02 Wadkin Ltd Improvements in or relating to planing or facing machines
DE1453014A1 (en) * 1962-10-19 1968-12-19 Ask Jonas Waldemar Method and device for the production of rectangular boards from boards with inclined surfaces
US3276492A (en) * 1962-12-21 1966-10-04 Stora Kopparbergs Bergslags Ab Method and apparatus for trimming timber by means of mutually adjustable parallel cutting members
DE1628884A1 (en) * 1967-12-29 1971-12-23 Otto Kreibaum Method and device for the production of cut timber from conically growing stems
CH472941A (en) * 1968-01-24 1969-05-31 Meyrat & Luisoni Process for machining a bar material and installation for implementing this process
GB1484738A (en) * 1975-01-25 1977-09-01 Storti G Apparatus for automatically trimming lengths of wood
US4167961A (en) * 1978-04-13 1979-09-18 New England Log Homes, Inc. Planer and groover

Also Published As

Publication number Publication date
DE3049258A1 (en) 1982-07-29
SU1103786A3 (en) 1984-07-15
NO812921L (en) 1982-06-28
ATE12607T1 (en) 1985-04-15
DE3169837D1 (en) 1985-05-15
EP0055793A2 (en) 1982-07-14
FI812806L (en) 1982-06-28
EP0055793B1 (en) 1985-04-10
US4449558A (en) 1984-05-22

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