WO2005002814A1 - Machine à fendre des tronçons allongés de bois - Google Patents
Machine à fendre des tronçons allongés de bois Download PDFInfo
- Publication number
- WO2005002814A1 WO2005002814A1 PCT/CH2004/000413 CH2004000413W WO2005002814A1 WO 2005002814 A1 WO2005002814 A1 WO 2005002814A1 CH 2004000413 W CH2004000413 W CH 2004000413W WO 2005002814 A1 WO2005002814 A1 WO 2005002814A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- knives
- series
- machine according
- wood
- knife
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
- B27H—BENDING WOOD OR SIMILAR MATERIAL; COOPERAGE; MAKING WHEELS FROM WOOD OR SIMILAR MATERIAL
- B27H3/00—Manufacture of constructional elements of tubes, coops, or barrels
- B27H3/02—Manufacture of barrel staves
-
- 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
- B27L7/00—Arrangements for splitting wood
- B27L7/06—Arrangements for splitting wood using wedges, knives or spreaders
Definitions
- the present invention relates to a machine for splitting elongated sections of wood, this machine comprising a frame, knives provided with a cutting edge mounted on this frame and a pushing device arranged to push an elongated section of wood substantially axially against the cutting edges of these knives, in which said knives comprise a first series of knives substantially parallel to each other and arranged in a first orientation and a second series of knives substantially parallel to each other and arranged in a second orientation substantially perpendicular to said first orientation-
- Canadian patent CA 1 097 193 relates to a machine for cutting pieces of wood for the production of joists or squares of rectangular or square section, which uses interchangeable knife grids.
- the knives are fixed and each grid corresponds to a template for joists or squares to be made.
- This machine is not suitable for splitting logs for firewood known as firewood, knowing that the rigid knife grates are only suitable for splitting relatively soft wood such as that of conifers, whereas firewood is generally wood of deciduous trees, relatively hard and which does not split regularly.
- European publication EP 0 334 741 describes a machine for cutting pieces of wood of regular section which also comprises a grid with knives perpendicular to each other and a multitude of individual pushers arranged to push the wood through the openings of this grid.
- the purpose of this machine is to make pieces of wood for the frame or carpentry with soft wood like that of conifers. It does not lend itself to splitting large logs to make firewood.
- American patent US 1,406,552 relates to a machine for splitting wood logs simultaneously into several pieces in one direction.
- the knives are not adjustable in spacing and the parts obtained must be returned to the machine to be able to be split in the perpendicular direction.
- American patent US 3 872 903 describes a machine for splitting wooden logs into planks in the same direction.
- the Austrian utility certificate AT 5 889 U relates to a device for manufacturing firewood comprising a first knife for cutting a board and a second perpendicular knife for cutting the board into pieces of wood.
- the knives are adjustable in position.
- the object of the present invention is to provide equipment making it possible to optimize and automate the splitting of wood, in particular so-called fuelwood, in order to obtain pieces of wood of substantially predetermined section, the dimensions of this section possibly be changed almost automatically as needed.
- the frame comprises a support gantry on which are mounted said knives of the knife assembly, said gantry comprising two uprights and two cross members respectively secured to the ends of the uprights, and said knives of one of the series of knives are slidably mounted on the uprights and the knives of the second series of knives are slidably mounted on the crosspieces.
- said first adjustment means comprise a first adjustment device arranged to obtain a regular spacing of the knives of the first series of knives, the space between two adjacent knives being the same for all the knives of this first knife series-
- said second adjustment means comprise a second adjustment device arranged to obtain a regular spacing of the knives of the second series of knives, the space between two adjacent knives being the same for all of the knives. this second series of knives.
- said first device for adjusting the regular spacing of the knives of the first series of knives comprises two control levers respectively mounted on the two uprights of the gantry, said control levers being pivotable respectively around two axes integral with said uprights, these control levers each carrying a set of rods, each of which is integral, on the one hand, with one of the control levers and, on the other hand, with one of the knives of the first series of knives-
- one of the control levers and the sets of rods associated with this lever correspond to one of the ends of the knives of the first series and the other control lever and the sets of rods associated with this lever correspond to the opposite end of the knives of the first series.
- said second device for adjusting the spacing of the second series of knives comprises two hydraulic jacks respectively mounted on the two cross members of the gantry, the bodies of these jacks being coupled to one of the ends of the first knife of the second series of knives and the rods of these jacks being coupled to one of the ends of the last knife of the second series of knives.
- said second device for adjusting the spacing of the second series of knives comprises spring blades in the form of hairpins, the ends of which are respectively integral with two adjacent knives, these spring blades being arranged to urge these knives to increase their spacing.
- each knife of each of the two series of knives has at each of its ends a holding pin located in the vicinity of the cutting edge, the rear part of these knives being floating so that said knives can freely adopt variable angular positions.
- the pushing device comprises a movable carriage comprising a set of horizontal flat parts and a set of sections movable relative to each other between a position in which they define the same thrust plane and a position in which they are offset.
- FIG. 1 is a perspective view of the machine according to the invention
- FIGS. 2A and 2B respectively represent a perspective view and a side view of the knives of the machine, these knives being in a position corresponding to a minimum spacing
- FIGS. 3A and 3B respectively represent a perspective view and a side view of the knives of the machine, these knives being in a position corresponding to a maximum spacing
- FIG. 4 is a partial view illustrating in detail the device for adjusting the spacing of the first series of knives.
- the machine 10 for splitting elongated sections of wood comprises a frame 20 on which are mounted a pushing device 30 and an assembly of knives 40 comprising a first series of knives 50 and a second series of knives 60.
- the pushing device 30 is arranged to push a section of wood (not shown) substantially axially against the cutting edge of the knives 50 and 60 to split said section into pieces of wooden predetermined section.
- the frame 20 comprises a gantry 21 for supporting the knives comprising two uprights 22, which, in the example shown, are vertical and two cross members 23, which, in the example shown, are horizontal.
- the uprights and the crosspieces are perpendicular to each other, but could be arranged in different orientations depending on the needs of the user.
- the horizontal crosspieces 23 are respectively secured to the ends of the vertical uprights 22 so that the gantry 21 is in the form of a rectangular frame.
- the knives 50 of the first series of knives are slidably mounted on the vertical uprights 22 and the knives 60 of the second series of knives are slidably mounted on the horizontal crosspieces 23.
- the frame 20 also comprises two horizontal beams 24 fixed by one of their ends to two vertical supports 25 arranged on either side of the gantry 21 and by their other end to a transverse part 26, this rigid assembly being arranged to serve as a support to the pushing device 30 and in particular to a mobile carriage 31.
- This mobile carriage 31 is composed of two assemblies, one of which comprises an assembly of horizontal flat parts 32 integral with two vertical elements 33 and the other of which comprises two vertical elements 34 which carry profiles 35 having a U-shaped cross section, mutually parallel, substantially horizontal.
- the profiles 35 are integral with the uprights 34 which have slots 36 in which the horizontal flat pieces 32 can slide. Therefore the profiles 35 are movable relative to the horizontal flat pieces 32 so that in a determined position (not shown). in FIG. 1), the front faces of the profiles 35 and the front fields of the flat parts 32 are arranged in the same plane which constitutes a thrust plane intended to bear against the wood.
- the movable carriage 31 is actuated by a hydraulic cylinder (not shown) arranged to generate a very large thrust, for example of the order of 40 to 50 tonnes, fixed below and acting on a guide rod 37, constituted for example by 'a section of square section, which slides through a guide opening 38 formed in a plate 39 integral with the frame 20.
- This guide rod 37 is made integral with the vertical elements 33 carrying the horizontal flat parts 32.
- the relative displacement of these parts 32 and profiles 35 is obtained by means of a hydraulic cylinder 9, the body of which is coupled to the guide rod 37 and the piston rod to a hoop element 8 fixed to the plate 39.
- the pushing device 30 has a dual function. On the one hand, it makes it possible to push the section of wood to be split against the assembly of knives 40.
- This push takes place when the horizontal flat parts 32 and the profiles 35 define the same plane. On the other hand, it pushes the pieces of wood out of the knives when the section has been split.
- This thrust is carried out by the profiles 35, which are brought into the offset position with respect to said horizontal flat parts 32, as shown in FIG. 1 and when the horizontal knives 50 have been previously moved apart as much as possible.
- the thrust is effected by means of the jack which actuates the mobile carriage 31, the hydraulic jack 9 having only the function of shifting the horizontal flat parts 32 and the profiles 35.
- the gantry 21 is removably attached to the vertical supports 25 so that the knife assembly 40 can be easily disassembled for servicing and maintenance operations, in particular the sharpening of the knives 50 and 60. However, it is also it is possible to disassemble the knives, for example to sharpen them, without first removing the gantry 21.
- Figures 2 to 4 are detailed views which illustrate more particularly the assembly of knives 40 in the different operating positions, with the knives tightened or the knives apart.
- the first series of knives 50 mounted on the gantry is associated with first adjustment means in the form of a first adjustment device 70 making it possible to adjust the spacing of the knives 50 so that this spacing is regular, this is that is to say identical between two adjacent knives of the entire series regardless of the spacing chosen.
- This first adjustment device 70 comprises two control levers 71 respectively mounted on the vertical uprights 22 of the gantry 21 by means of a pivot axis 72
- a set of links 73 is associated with each control lever 71, each of these links 73 being articulated, on the one hand, to the control lever 71 by one of its ends and, on the other hand, to a tenon 51 secured to each end of a knife 50.
- a hydraulic actuating cylinder 74 is associated at each control lever 71 to rotate the latter about its pivot axis 72 in order to move the knives 50 according to the spacing instruction that has been given to the knives.
- the hydraulic cylinder 74 rotates the control lever 71 in one direction, it pushes the rods 73 by one of their ends by driving the knives 50 by their pins 51.
- the knives 50 then slide along the vertical uprights 22 in moving away from each other.
- the two hydraulic cylinders 74 are controlled synchronously so as to act simultaneously on the pins equipping the two ends of the knives 50.
- the system may also have only one cylinder, the two control levers 71 being rigidly coupled by a transverse bar 75 or other rigid connections.
- the hydraulic jack or jacks 74 act in the opposite direction to cause the control levers 71 to tilt downwards by driving the rods 73 coupled to the knives 50.
- the spacing of the knives 60 of the second series of knives is adjusted by second adjustment means in the form of a second adjustment device 80.
- This second adjustment device 80 comprises two hydraulic adjustment cylinders 81 respectively arranged along each horizontal cross member 23 of the gantry 21. The body and the rod of each hydraulic cylinder
- each end of a knife is provided with a holding tenon , respectively 51, 61, the two tenons of the same knife being coaxially arranged in the vicinity of the cutting edge of the knife to define a pivot axis located at the front of the knife and substantially parallel to its cutting edge. In this way, the knives are floating and can freely take variable angular positions.
- the knives tilt independently of each other and according to the orientation of the wood fibers, which avoids blocking and allows the knives to operate according to two distinct operational modes, namely a first mode which consists in splitting wood by splitting the fiber and a second mode which consists in cutting the hard parts having random fiber orientations, for example knots and a magnifying glass.
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Forests & Forestry (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Manufacture Of Wood Veneers (AREA)
- Debarking, Splitting, And Disintegration Of Timber (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Road Signs Or Road Markings (AREA)
- Lining And Supports For Tunnels (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA2531075A CA2531075C (fr) | 2003-07-02 | 2004-06-30 | Machine a fendre des troncons allonges de bois |
EP04738054A EP1638744B1 (fr) | 2003-07-02 | 2004-06-30 | Machine a fendre des troncons allonges de bois |
DE602004003821T DE602004003821T2 (de) | 2003-07-02 | 2004-06-30 | Maschine zum spalten horizontaler blöcke |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR0308009A FR2856949B1 (fr) | 2003-07-02 | 2003-07-02 | Machine a fendre des troncons allonges de bois |
FR0308009 | 2003-07-02 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005002814A1 true WO2005002814A1 (fr) | 2005-01-13 |
Family
ID=33522671
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CH2004/000413 WO2005002814A1 (fr) | 2003-07-02 | 2004-06-30 | Machine à fendre des tronçons allongés de bois |
Country Status (7)
Country | Link |
---|---|
EP (1) | EP1638744B1 (fr) |
AT (1) | ATE348698T1 (fr) |
CA (1) | CA2531075C (fr) |
DE (1) | DE602004003821T2 (fr) |
ES (1) | ES2279379T3 (fr) |
FR (1) | FR2856949B1 (fr) |
WO (1) | WO2005002814A1 (fr) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017127249B4 (de) * | 2017-11-20 | 2021-12-09 | Ruf & Keller GmbH & Co. KG | Holzschneider |
SI26188A2 (sl) * | 2021-04-08 | 2022-10-28 | Uniforest, D.O.O. | Rezalno cepilni stroj |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1406552A (en) * | 1920-08-23 | 1922-02-14 | Gorrie James Andrew | Apparatus for splitting logs and the like |
US3872903A (en) * | 1972-04-27 | 1975-03-25 | Charles E Carr | Multiple shake-board splitting method |
CA1097193A (fr) * | 1976-11-09 | 1981-03-10 | Ewan R. Orr | Methode et appareil de fabrication de produits en bois lamelle |
EP0097245A1 (fr) * | 1982-05-18 | 1984-01-04 | Walter Kretzer | Dispositif pour le traitement automatique des troncs de bois |
EP0334741A2 (fr) * | 1988-03-22 | 1989-09-27 | Robert J. Gollahon | Machine pour travailler le bois |
AT5889U2 (de) * | 2002-09-16 | 2003-01-27 | Karl Binderberger Maschb Und H | Brennholzspleisser |
-
2003
- 2003-07-02 FR FR0308009A patent/FR2856949B1/fr not_active Expired - Fee Related
-
2004
- 2004-06-30 DE DE602004003821T patent/DE602004003821T2/de not_active Expired - Lifetime
- 2004-06-30 EP EP04738054A patent/EP1638744B1/fr not_active Expired - Lifetime
- 2004-06-30 CA CA2531075A patent/CA2531075C/fr not_active Expired - Fee Related
- 2004-06-30 ES ES04738054T patent/ES2279379T3/es not_active Expired - Lifetime
- 2004-06-30 AT AT04738054T patent/ATE348698T1/de active
- 2004-06-30 WO PCT/CH2004/000413 patent/WO2005002814A1/fr active IP Right Grant
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1406552A (en) * | 1920-08-23 | 1922-02-14 | Gorrie James Andrew | Apparatus for splitting logs and the like |
US3872903A (en) * | 1972-04-27 | 1975-03-25 | Charles E Carr | Multiple shake-board splitting method |
CA1097193A (fr) * | 1976-11-09 | 1981-03-10 | Ewan R. Orr | Methode et appareil de fabrication de produits en bois lamelle |
EP0097245A1 (fr) * | 1982-05-18 | 1984-01-04 | Walter Kretzer | Dispositif pour le traitement automatique des troncs de bois |
EP0334741A2 (fr) * | 1988-03-22 | 1989-09-27 | Robert J. Gollahon | Machine pour travailler le bois |
AT5889U2 (de) * | 2002-09-16 | 2003-01-27 | Karl Binderberger Maschb Und H | Brennholzspleisser |
Also Published As
Publication number | Publication date |
---|---|
EP1638744A1 (fr) | 2006-03-29 |
EP1638744B1 (fr) | 2006-12-20 |
CA2531075C (fr) | 2011-11-22 |
CA2531075A1 (fr) | 2005-01-13 |
FR2856949A1 (fr) | 2005-01-07 |
FR2856949B1 (fr) | 2006-08-25 |
ES2279379T3 (es) | 2007-08-16 |
ATE348698T1 (de) | 2007-01-15 |
DE602004003821D1 (de) | 2007-02-01 |
DE602004003821T2 (de) | 2007-10-11 |
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