EP0484825A1 - Dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois - Google Patents

Dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois Download PDF

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Publication number
EP0484825A1
EP0484825A1 EP91118585A EP91118585A EP0484825A1 EP 0484825 A1 EP0484825 A1 EP 0484825A1 EP 91118585 A EP91118585 A EP 91118585A EP 91118585 A EP91118585 A EP 91118585A EP 0484825 A1 EP0484825 A1 EP 0484825A1
Authority
EP
European Patent Office
Prior art keywords
profile piece
separating element
clippings
feed direction
sawn
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
EP91118585A
Other languages
German (de)
English (en)
Other versions
EP0484825B1 (fr
Inventor
Hans Prof. Dr.-Ing. Dietz
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.)
Wurster u Dietz GmbH u Co Maschinenfabrik
Original Assignee
Wurster u Dietz GmbH u Co Maschinenfabrik
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 Wurster u Dietz GmbH u Co Maschinenfabrik filed Critical Wurster u Dietz GmbH u Co Maschinenfabrik
Publication of EP0484825A1 publication Critical patent/EP0484825A1/fr
Application granted granted Critical
Publication of EP0484825B1 publication Critical patent/EP0484825B1/fr
Anticipated expiration legal-status Critical
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Classifications

    • 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
    • B27G19/00—Safety guards or devices specially adapted for wood saws; Auxiliary devices facilitating proper operation of wood saws
    • B27G19/08—Accessories for keeping open the saw kerf, e.g. riving knives or wedge plates
    • 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
    • B27B31/08—Discharging equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27C—PLANING, DRILLING, MILLING, TURNING OR UNIVERSAL MACHINES FOR WOOD OR SIMILAR MATERIAL
    • B27C1/00—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor
    • B27C1/005—Machines for producing flat surfaces, e.g. by rotary cutters; Equipment therefor with tools having a rotational vector which is perpendicular to the working surface
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/002—Wood or veneer transporting devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/006—Cutting strips from a trunk or piece by a rotating tool
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2077—By kerf entering guide
    • 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
    • Y10T83/202—With product handling means
    • Y10T83/2074—Including means to divert one portion of product from another
    • Y10T83/2083—Deflecting guide
    • 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
    • Y10T83/929—Tool or tool with support
    • Y10T83/9372—Rotatable type
    • Y10T83/9403—Disc type

Definitions

  • the invention relates to a device for separating or slitting a rigid material to be cut, in particular wood, with a modulus of elasticity of preferably approximately 50,000 to 400,000 kg / cm2, with a narrow tool having cutting elements, in particular a circular saw blade, which creates a gap of finite width in the clippings at a cutting speed of more than about 40 m / s by moving the tool and the clippings relative to one another along a feed direction are, and with a separating element, which is arranged in the feed direction of the clippings directly behind the cutting elements and a profile piece separated by a gap from a clippings from the cleavage plane bends out of the clippings.
  • a device of the type mentioned above is known from WO 88/02683.
  • a circular saw with a rotating circular saw blade is preferably used.
  • the separating element is arranged concentrically to the circular saw blade in the form of a conically tapering and non-rotating collar.
  • the invention has for its object to develop a device of the type mentioned in such a way that an orderly continuation of the separated profile pieces in the feed direction of the material to be cut is possible without this leading to a mechanical overload of the separating element.
  • the object underlying the invention is completely achieved in this way.
  • the deflection device namely causes the bent profile piece to be deflected back into a path or direction which corresponds to the feed direction of the clippings, so that further processing of the cut clippings is possible within the framework of an overall processing system for the clippings.
  • the above-mentioned disadvantages of possible local overstressing of the separating element are, on the other hand, avoided by means of the support device because the support device can absorb part or all of the load which is exerted by the deflection device on the separating element via the bent profile piece.
  • the support device rests under rolling friction on the profile piece.
  • This measure has the advantage that a particularly low-friction support is possible, so that the local load on the separating element due to the action of the deflection device is not only distributed over the separating element and the supporting device, but rather is significantly reduced overall.
  • the torques exerted by the support device on the one hand and the deflection device on the other hand on the profile piece relative to the separating element essentially cancel each other out.
  • This measure has the advantage that the local load on the separating element can be reduced to the amount that is just inevitable in order to bend the profile piece out of the splitting plane.
  • a further embodiment of the invention is characterized in that the support device comprises a roller conveyor which is arranged directly in the feed direction of the material to be cut behind the separating element and which leads the profile piece perpendicular to the feed direction along a path which prevents the natural bending of the profile piece on the separating element in the absence of the Deflection device and the support device corresponds.
  • the support device comprises a roller conveyor which is arranged directly in the feed direction of the material to be cut behind the separating element and which leads the profile piece perpendicular to the feed direction along a path which prevents the natural bending of the profile piece on the separating element in the absence of the Deflection device and the support device corresponds.
  • This measure has the advantage that the area of the profile piece located upstream of the deflection device and the support device is entirely free of forces, based on the forces exerted by the deflection device and the support device on the profile piece.
  • 10 designates a total of clippings, in the exemplary embodiment shown a profiled wood, for example a tree trunk or a model that has already been processed on its surface.
  • a profile piece 12 in the example shown a side board, is to be separated from the clippings 13, in the example as the remaining main goods, along a slit plane 11.
  • a circular saw blade 15 rotating about an axis 14 is provided, which is located in the splitting plane 11.
  • the rotating circular saw blade 15 there is a spatially fixed separating element 20 of flat-conical shape, relative to the axis 14.
  • the separating element 20 On the inlet side of the circular saw blade 15, the separating element 20 has a conical contact surface 21 which corresponds to a contact area or contact point 22 of the running profile piece 12.
  • the cut-off profile piece 12 is bent out of the splitting plane 11, as is shown in broken lines with a first course 25 in FIG. 1.
  • the device according to the invention corresponds entirely to that described in the above-mentioned WO 88/02683 by the same applicant.
  • the disclosure content of which is made by this reference to the disclosure content of the present application.
  • the first course 25 shown in dash-dotted lines in FIG. 1 has the disadvantage that the separated profile piece 12 runs away from the clippings 13 in an oblique direction.
  • a deflection device can therefore be used in order to achieve a second course 26 which does not run away and which is shown in solid lines in FIG. 1.
  • This deflection device can consist, for example, of a deflection roller 27 which is rotatable about an axis 28 and rests on a front section 29 of the separated and bent profile piece 12. The deflection roller 27 thus exerts a force F on the front section 29 of the profile piece 12, which is directed towards the splitting plane 11.
  • the circular saw blade 15 is located on a fixed circular saw.
  • the clippings 10 must be advanced, in the direction 30 indicated by an arrow along the splitting plane 11.
  • the front section 29 likewise moves essentially in the direction 30, that is to say parallel is moved to the advanced clippings 13.
  • the deflection device also has the effect of a lever.
  • the force F of the deflection roller 27 acts relative to this pivot point via a lever arm L, which corresponds to the distance of the axis 28 from Point of engagement of the circular saw blade 15 in the direction 30 corresponds.
  • the contact point or contact area 22 is only a very small distance 1 from this point of engagement. The result is a two-armed lever in which the deflection force F is converted into an additional force via the very large ratio L / 1, which acts in the contact area 22 between the profile piece 12 and the separating element 20.
  • the deflection device results in an additional load on the contact area 22 on the separating element 20. If, as is preferred, the separating element 20 is arranged in a non-rotating and thus spatially fixed manner, this overload always occurs on the same surface area of the separating element 20, with the result that there is overheating and thus material fatigue, combined with increased material removal can.
  • FIG. 2 an additional support device is provided according to FIG. 2. 2, the same elements are provided with the same reference numerals as in FIG. 1.
  • a roller conveyor 40 with first rollers 41 and second rollers 42 is provided immediately downstream of the separating element 20, through which the bent profile piece 12 runs. After passing through the roller conveyor 40, the profile piece 12 again comes into the region of a deflection device with a deflection roller 27 'which can be rotated about an axis 28'.
  • first rollers 41 are arranged upstream of the second rollers 42.
  • the first rollers 41 are preferably arranged in such a way that the movement path of the profile piece 12 defined by them corresponds exactly to the natural bending line of the profile piece 12 after bending in the contact area 22. If this is the case, the profile piece 12 leaves the roller path formed by the first rollers 41 without any force, so that a force which acts essentially radially on the profile piece 12 downstream of the first rollers 41 has no effect on the section of the profile piece 12, which is still upstream of the first rollers 41.
  • first rollers 41 and the second rollers 42 can each be used individually, but preferably in combination with one another.
  • FIGS. 1 and 2 are only to be understood extremely schematically and do not reflect the actual proportions.
  • the arrangement and number of deflection and support rollers must be determined on a case-by-case basis, the type of material being cut, i.e. the material or type of wood to be processed, as well as the thickness of the profile piece to be cut.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Sawing (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
  • Combined Means For Separation Of Solids (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Nonmetal Cutting Devices (AREA)
EP91118585A 1990-11-05 1991-10-31 Dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois Expired - Lifetime EP0484825B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4035048 1990-11-05
DE4035048A DE4035048A1 (de) 1990-11-05 1990-11-05 Vorrichtung zum trennen oder schlitzen eines starren schnittgutes, insbesondere holz

Publications (2)

Publication Number Publication Date
EP0484825A1 true EP0484825A1 (fr) 1992-05-13
EP0484825B1 EP0484825B1 (fr) 1994-09-28

Family

ID=6417616

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91118585A Expired - Lifetime EP0484825B1 (fr) 1990-11-05 1991-10-31 Dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois

Country Status (6)

Country Link
US (1) US5146964A (fr)
EP (1) EP0484825B1 (fr)
AT (1) ATE112206T1 (fr)
CA (1) CA2054938C (fr)
DE (2) DE4035048A1 (fr)
FI (1) FI96287C (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652088A1 (fr) * 1993-11-04 1995-05-10 Dietz, Hans, Prof. Dr. Procédé et dispositif de traitement de troncs d'arbres
DE102021128977A1 (de) 2021-11-08 2023-05-11 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG Vorrichtung zum Separieren eines Schnittholzpaketes in Haupt- und Seitenware

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5209253A (en) * 1991-05-06 1993-05-11 Taylor Julian S Emergency shutoff valve and regulator assembly
DE4121021A1 (de) * 1991-06-18 1992-12-24 Wurster & Dietz Maschf Verfahren und vorrichtung zum trennen oder schlitzen eines starren schnittguts
AT404107B (de) * 1996-06-13 1998-08-25 Rupert Hirnsperger Vorrichtung bzw. verfahren zum spanlosen schneiden von holzlamellen und brettern
US7293488B2 (en) * 2003-11-04 2007-11-13 Henry Wang Splitter for circular table saw and method of installation
US7475621B2 (en) * 2004-11-02 2009-01-13 Henry Wang Kerf control apparatus for a table saw
ITBZ20110014A1 (it) * 2011-04-11 2012-10-12 Albert Rabensteiner Rifilatrice per legno, in particolare squadratrice doppia.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1528302A1 (de) * 1965-03-17 1970-04-16 Bosse Carl Bernd Einrichtung zum Transport von Furnierblaettern
DE2142864A1 (de) * 1970-08-27 1972-03-02 Kralovopolska strojirna, N.P., Brunn (Tschechoslowakei) Einrichtung zum Herausziehen und Abnehmen von Furnierblättern aus Furniermessermaschinen
EP0144003A2 (fr) * 1983-11-30 1985-06-12 Gebrüder Linck Maschinenfabrik "Gatterlinck" GmbH & Co. KG Dispositif pour la fabrication de bois équarri à partir de troncs d'arbre en y tranchant des planches sur les côtés opposés
WO1988000517A1 (fr) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif de decoupage sans eclats de troncs d'arbres en produits de bois
WO1988002683A1 (fr) * 1986-10-17 1988-04-21 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3207548C2 (de) * 1982-03-03 1984-02-23 Gebrüder Linck Maschinenfabrik und Eisengießerei "Gatterlinck", 7602 Oberkirch Vorrichtung zur Herstellung von flachen Holzerzeugnissen, wie Brettern
US4589458A (en) * 1984-10-29 1986-05-20 Vermont American Corporation Multiple saw blade adjustable dado cutter
DE3623235A1 (de) * 1986-07-10 1988-01-21 Wurster & Dietz Gmbh U Co Masc Verfahren und vorrichtung zum zerlegen von baumstaemmen in holz-fertigerzeugnisse
DE4026346A1 (de) * 1989-11-01 1991-05-02 Linck Masch Gatterlinck Verfahren zum spanlosen aufteilen eines kantholzes in bretter gleicher dicke

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1528302A1 (de) * 1965-03-17 1970-04-16 Bosse Carl Bernd Einrichtung zum Transport von Furnierblaettern
DE2142864A1 (de) * 1970-08-27 1972-03-02 Kralovopolska strojirna, N.P., Brunn (Tschechoslowakei) Einrichtung zum Herausziehen und Abnehmen von Furnierblättern aus Furniermessermaschinen
EP0144003A2 (fr) * 1983-11-30 1985-06-12 Gebrüder Linck Maschinenfabrik "Gatterlinck" GmbH & Co. KG Dispositif pour la fabrication de bois équarri à partir de troncs d'arbre en y tranchant des planches sur les côtés opposés
WO1988000517A1 (fr) * 1986-07-10 1988-01-28 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif de decoupage sans eclats de troncs d'arbres en produits de bois
WO1988002683A1 (fr) * 1986-10-17 1988-04-21 Wurster U. Dietz Gmbh U. Co. Maschinenfabrik Procede et dispositif pour fendre ou refendre un produit de sciage rigide, notamment du bois

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0652088A1 (fr) * 1993-11-04 1995-05-10 Dietz, Hans, Prof. Dr. Procédé et dispositif de traitement de troncs d'arbres
DE102021128977A1 (de) 2021-11-08 2023-05-11 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG Vorrichtung zum Separieren eines Schnittholzpaketes in Haupt- und Seitenware
US12350856B2 (en) 2021-11-08 2025-07-08 Gebrüder Linck, Maschinfabrik “Gatterlinck” GmbH & Co. KG Apparatus for separating a sawn timber package into main and side products

Also Published As

Publication number Publication date
FI96287B (fi) 1996-02-29
FI96287C (fi) 1996-06-10
US5146964A (en) 1992-09-15
FI915191A0 (fi) 1991-11-04
DE4035048A1 (de) 1992-05-07
EP0484825B1 (fr) 1994-09-28
FI915191A7 (fi) 1992-05-06
ATE112206T1 (de) 1994-10-15
CA2054938A1 (fr) 1992-05-06
CA2054938C (fr) 1996-10-01
DE59103108D1 (de) 1994-11-03
DE4035048C2 (fr) 1992-10-08

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