WO1997001421A1 - Procede de production d'elements de ferme et moyens utilises a cet effet - Google Patents

Procede de production d'elements de ferme et moyens utilises a cet effet Download PDF

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Publication number
WO1997001421A1
WO1997001421A1 PCT/NO1996/000159 NO9600159W WO9701421A1 WO 1997001421 A1 WO1997001421 A1 WO 1997001421A1 NO 9600159 W NO9600159 W NO 9600159W WO 9701421 A1 WO9701421 A1 WO 9701421A1
Authority
WO
WIPO (PCT)
Prior art keywords
saw
stock
units
cutting
saws
Prior art date
Application number
PCT/NO1996/000159
Other languages
English (en)
Inventor
Jan Hansen
Original Assignee
Ernex A/S
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 Ernex A/S filed Critical Ernex A/S
Priority to AU63704/96A priority Critical patent/AU6370496A/en
Priority to DE19681476T priority patent/DE19681476T1/de
Publication of WO1997001421A1 publication Critical patent/WO1997001421A1/fr
Priority to SE9704820A priority patent/SE512403C2/sv
Priority to FI974619A priority patent/FI974619A0/fi
Priority to DK199701534A priority patent/DK174043B1/da

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D45/00—Sawing machines or sawing devices with circular saw blades or with friction saw discs
    • B23D45/14—Sawing machines or sawing devices with circular saw blades or with friction saw discs for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut
    • B23D45/143—Sawing machines or sawing devices with circular saw blades or with friction saw discs for cutting otherwise than in a plane perpendicular to the axis of the stock, e.g. for making a mitred cut with a plurality of circular saw blades
    • 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
    • B27B31/003—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines with rollers
    • 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
    • B27B5/16—Saw benches
    • B27B5/18—Saw benches with feedable circular saw blade, e.g. arranged on a carriage
    • B27B5/20—Saw benches with feedable circular saw blade, e.g. arranged on a carriage the saw blade being adjustable according to depth or angle of cut; Radial saws, i.e. sawing machines with a pivoted radial arm for guiding the movable carriage
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27G—ACCESSORY MACHINES OR APPARATUS FOR WORKING WOOD OR SIMILAR MATERIALS; TOOLS FOR WORKING WOOD OR SIMILAR MATERIALS; SAFETY DEVICES FOR WOOD WORKING MACHINES OR TOOLS
    • B27G5/00—Machines or devices for working mitre joints with even abutting ends
    • B27G5/02—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes
    • B27G5/023—Machines or devices for working mitre joints with even abutting ends for sawing mitre joints; Mitre boxes the mitre angle being adjusted by positioning a workpiece relative to a fixed saw

Definitions

  • the present invention concerns a method for producing roof truss elements or other wood materials, wherein both ends of the elements have to be cut, and a device for use in the method.
  • One of the objects of the present invention is to provide a simple, reasonably priced design, which has extensive possibilities for variation, both in angle and length, where exact cutting and feeding are ensured with simple operation, and where the safety of the operator is guaranteed. Furthermore it should be possible to cut all possible angles, from very sharp to blunt, and by having a saw blade which can be tilted, it should be possible to manufacture roof trusses for hip roofs in one operation.
  • the device should be able to be controlled from a separate console which enables both saws to be controlled from one location, also with synchronous operation including fixing.
  • the object of the present invention is therefore to provide a method for producing roof truss elements which permits simultaneous cutting of the ends of the roof truss elements and a device for use in the method.
  • a device is achieved by simple means for use in double cutting, preferably of roof truss elements, which substantially increases the accuracy of the cutting of such roof trusses as well as reducing their manufacture time.
  • the design according to the invention gives a highly efficient operation which is suitable for a high degree of automation.
  • fig. 1 is a perspective view of the device according to the invention.
  • fig. 2 is a perspective view of a saw unit according to the invention, where retractors and ejection mechanisms for stocks/elements are omitted, and
  • fig. 3 is a perspective view which illustrates the mechanisms omitted in fig.
  • Figure 1 illustrates an embodiment consisting of two saw units 1 and 2, in the form of known per se saw units, arranged alongside each other and connected by means of a rail track 13, where one of the saws 2 is stationary while the other saw 1 is movable in the lateral direction in relation to saw 1, thus providing a simple adjustment of the desired cutting length of a roof truss element.
  • the saw units 1 and 2 comprise a turntable 3 for adjusting the cutting angle ( ⁇ 90 ) with a saw blade which can be tilted 45 .
  • the turntable 3 can be adjusted 180 by means of a tool (not shown) which is located in suitable holes in the turntable for manual or motorized rotation/adjustment of the cutting angle.
  • An upper protector 4 with suction is provided above the turntable 3, where the upper protector 4 is raisably and lowerably mounted to a securing body 5 which is mounted via an arm 6 in one edge/corner of the saw.
  • retractors 7 for securing the element stock against a slide 8 which is adjustably provided on the work table, and ejection mechanisms 9 in the form of raisable and lowerable roller conveyors for automatic transfer of finished roof trusses from the work table to an area behind the saws.
  • an adjustable stopper 14 is provided opposite the slide 8. Furthermore end cuts and the like are removed automatically by means of a pneumatically driven device 15 which "sweeps" the work table, preferably on the saw unit 1.
  • the device is operated by means of a control device 12, provided between the saw units 1 and 2, and consists of a two-handed release device, which by means of PLS control (not shown) controls the work cycle.
  • the device which according to fig. 1 is composed of two semi-automatic machines, preferably the Gjerde saw, where the saw blade is located under the tabletop/turntable and during cutting it is raised up through this, and where only the feeding in of the element stocks is performed manually, is adjusted in relation to the desired cutting length by means of the saw 1 and in relation to the element's width by means of the lever 11.
  • the element stocks are positioned in the longitudinal direction by means of the adjustable stopper 14 and then fed in continuously by means of the retractor to the correct position.
  • the subsequent work cycle is controlled automatically by means of the two-handed release device 12.
  • the element stock which is positioned against the stoppers 10 by means of the pneumatic retractors 7, is then fixed by means of the securing mechanisms 5, while at the same time the upper protectors 4 are lowered over the cutting zones.
  • the saw blades are passed up through a slot in the work table, cut the element stock and return to the starting position.
  • the upper protectors 4, the securing mechanisms 5 and the retractors 7 then return, and the element stock is lifted by means of the roller conveyors 9 and is tipped out behind the saw units. Finally end cuts and the like are removed by means of the device 15, preferably on the saw unit 1.
  • the roller conveyor 9 which is provided in extension of the rail track 13 enables short material stocks to be cut and possibly cutting of both straight and longitudinal incisions in the form of wedges.
  • the machines can also be supplied with additional equipment which increases the degree of automation with the result that the device can be converted to a preprogrammable wholly-automatic device for the manufacture of roof truss elements.
  • This can be implemented by means of, e.g., PC control, and supply turntables (cutting angle), tilting mechanism for saw blade, length adjustment as well as feeding in and out of the element stocks by pneumatic, hydraulic or electrical operation.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Shearing Machines (AREA)
  • Sawing (AREA)
  • Dovetailed Work, And Nailing Machines And Stapling Machines For Wood (AREA)

Abstract

La présente invention concerne un procédé ainsi qu'un dispositif de production d'éléments de ferme, ou d'autres produits en bois, dont les deux extrémités doivent être sciées. On effectue cette opération en réglant deux scies (1, 2) d'angle montées sur un rail (13), de manière à obtenir un angle souhaité pour la lame de scie et à conserver entre les scies une distance qui corresponde à la longueur voulue de l'élément de ferme. On apporte ensuite le bois débité à la demande, de manière à le mettre en contact avec les deux scies (1, 2) et à l'immobiliser dans cette position, les deux scies étant alors mises en action, de préférence de manière synchronisée, pour la finition dudit élément, lequel est ensuite libéré et enlevé de la table à scier.
PCT/NO1996/000159 1995-06-28 1996-06-27 Procede de production d'elements de ferme et moyens utilises a cet effet WO1997001421A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
AU63704/96A AU6370496A (en) 1995-06-28 1996-06-27 Method for producing roof truss elements and means for use by the method
DE19681476T DE19681476T1 (de) 1995-06-28 1996-06-27 Verfahren zum Herstellen von Dachbinderelementen und Vorrichtung zur Verwendung mit dem Verfahren
SE9704820A SE512403C2 (sv) 1995-06-28 1997-12-22 Sätt att framställa takstolselement och anordning för användning vid sättet
FI974619A FI974619A0 (fi) 1995-06-28 1997-12-23 Menetelmä kattoristikkoelementtien valmistamiseksi ja menetelmässä käytettävä laite
DK199701534A DK174043B1 (da) 1995-06-28 1997-12-23 Fremgangsmåde til fremstilling af tagværkselementer og midler til udøvelse af fremgangsmåden

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NO952604 1995-06-28
NO952604A NO303050B1 (no) 1995-06-28 1995-06-28 Innretning til fremstilling av takstolelementer

Publications (1)

Publication Number Publication Date
WO1997001421A1 true WO1997001421A1 (fr) 1997-01-16

Family

ID=19898357

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/NO1996/000159 WO1997001421A1 (fr) 1995-06-28 1996-06-27 Procede de production d'elements de ferme et moyens utilises a cet effet

Country Status (7)

Country Link
AU (1) AU6370496A (fr)
DE (1) DE19681476T1 (fr)
DK (1) DK174043B1 (fr)
FI (1) FI974619A0 (fr)
NO (1) NO303050B1 (fr)
SE (1) SE512403C2 (fr)
WO (1) WO1997001421A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044794A1 (fr) * 1998-03-06 1999-09-10 Ernex As Table a rouleaux pour scie de menuisier
WO1999044795A1 (fr) * 1998-03-06 1999-09-10 Ernex As Scie de menuisier

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH161109A (de) * 1932-04-04 1933-04-15 Isler Fritz Vorrichtung zum Schneiden von Leisten, Rahmenteilen etc.
GB1124586A (en) * 1965-06-18 1968-08-21 Beves & Co Ltd Saw unit
GB1320203A (en) * 1967-09-25 1973-06-13 Troy Steel Corp Truss cutting apparatus with two cutting stations
DE2903574A1 (de) * 1978-03-22 1979-09-27 Irion W & P Kapp-kreissaege
DE3314175C1 (de) * 1983-04-19 1984-08-16 Josef Aigner KG, 8223 Traunreut Verfahren und Vorrichtung zum Ablängen von Holz
FR2553331A1 (fr) * 1983-10-13 1985-04-19 Archetti Guy Dispositif pour la coupe de l'extremite libre des chevrons d'une charpente mise en place
DE3523033A1 (de) * 1984-08-01 1986-02-13 Speed Cut, Inc., Corvallis, Oreg. Vorrichtung zum schneiden von grat-, kehl- und ecksparren
DE3630908C2 (de) * 1986-09-11 1995-11-16 Bernhard Kreye Doppelgehrungssägevorrichtung zum Zuschneiden von Profilen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH161109A (de) * 1932-04-04 1933-04-15 Isler Fritz Vorrichtung zum Schneiden von Leisten, Rahmenteilen etc.
GB1124586A (en) * 1965-06-18 1968-08-21 Beves & Co Ltd Saw unit
GB1320203A (en) * 1967-09-25 1973-06-13 Troy Steel Corp Truss cutting apparatus with two cutting stations
DE2903574A1 (de) * 1978-03-22 1979-09-27 Irion W & P Kapp-kreissaege
DE3314175C1 (de) * 1983-04-19 1984-08-16 Josef Aigner KG, 8223 Traunreut Verfahren und Vorrichtung zum Ablängen von Holz
FR2553331A1 (fr) * 1983-10-13 1985-04-19 Archetti Guy Dispositif pour la coupe de l'extremite libre des chevrons d'une charpente mise en place
DE3523033A1 (de) * 1984-08-01 1986-02-13 Speed Cut, Inc., Corvallis, Oreg. Vorrichtung zum schneiden von grat-, kehl- und ecksparren
DE3630908C2 (de) * 1986-09-11 1995-11-16 Bernhard Kreye Doppelgehrungssägevorrichtung zum Zuschneiden von Profilen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999044794A1 (fr) * 1998-03-06 1999-09-10 Ernex As Table a rouleaux pour scie de menuisier
WO1999044795A1 (fr) * 1998-03-06 1999-09-10 Ernex As Scie de menuisier

Also Published As

Publication number Publication date
AU6370496A (en) 1997-01-30
FI974619A (fi) 1997-12-23
SE9704820D0 (sv) 1997-12-22
NO303050B1 (no) 1998-05-25
FI974619A0 (fi) 1997-12-23
SE9704820L (sv) 1997-12-22
SE512403C2 (sv) 2000-03-13
DE19681476T1 (de) 1998-07-02
NO952604L (no) 1996-12-30
DK174043B1 (da) 2002-05-06
DK153497A (da) 1997-12-23
NO952604D0 (no) 1995-06-28

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