EP0891846A2 - Dispositif pour la fabrication de bois équarri - Google Patents

Dispositif pour la fabrication de bois équarri Download PDF

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Publication number
EP0891846A2
EP0891846A2 EP98890193A EP98890193A EP0891846A2 EP 0891846 A2 EP0891846 A2 EP 0891846A2 EP 98890193 A EP98890193 A EP 98890193A EP 98890193 A EP98890193 A EP 98890193A EP 0891846 A2 EP0891846 A2 EP 0891846A2
Authority
EP
European Patent Office
Prior art keywords
cutting
tools
machine according
disks
disc
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.)
Withdrawn
Application number
EP98890193A
Other languages
German (de)
English (en)
Other versions
EP0891846A3 (fr
Inventor
Hans-Peter Ing. Leitinger
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.)
Holzindustrie Preding GmbH
Original Assignee
Holzindustrie Preding 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 Holzindustrie Preding GmbH filed Critical Holzindustrie Preding GmbH
Publication of EP0891846A2 publication Critical patent/EP0891846A2/fr
Publication of EP0891846A3 publication Critical patent/EP0891846A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/005—Tools therefor
    • 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
    • B27L11/00—Manufacture of wood shavings, chips, powder, or the like; Tools therefor
    • B27L11/007—Combined with manufacturing a workpiece

Definitions

  • the invention relates to a block molding machine for manufacturing of squared timber from round timbers, with truncated cones Cutting discs with at least one spiral along the lateral surface arranged tools with radially aligned Cutting and with vertically arranged scoring edges, with the cutting tools next to the tools Breakthroughs to derive the machining difference volume between the round timber and the squared timber are.
  • the Side boards are also closed in many cases Side boards and wood chips as starting material for the Cellulose production used.
  • the Spreissel rinds in a downstream operation of a wood chip machine fed, which has a chopping disc. Chop tools in a chopping disc about 6 mm thick, 25 mm wide and 3 cm long chips from the rinds and Chisel. Such boards can also be crushed into slats and via a knife-equipped flat disc to the above Wood chips are processed.
  • Both wood chips and sawdust are inferior Products that are milled out of the full-fledged log become.
  • the invention aims to be much more economical Way to use the difference volume and from the difference volume to produce a high quality product directly.
  • the Chips when cutting the difference in volume between logs and squared timber was previously only usable waste, with one correspondingly low and steadily declining economic Meaning.
  • the invention makes it possible for the first time with the Natural product "tree trunk” in responsible, environmentally conscious Way to deal practically waste-free and in one operation the trunk entirely through the synchronous coupling the production of squared timber with the production of chipboard for high-strength and resilient chipboard in the best possible Way to use.
  • the cutting disc has a driveless one in the middle free-running centering disc or a non-driven one Circular ring for guiding the processed logs to Has the purpose of producing flat chips that are as thick as possible.
  • This centering disc holds the logs directly at Cut tight and prevents uneven thick flakes of what otherwise the surface quality of the squared timber is also disadvantageous influenced.
  • the approximately radially aligned Tools especially those in the largest Diameter of the cutting disc, one support plate each for feeding the stem to the cutting edges and the cutting of the tools as well as the platen limit the openings in the cutting disc.
  • a special embodiment of a block molding machine that works in a continuous process characterized that at least two cutting stations with cutting discs opposite each other in mirror image follow each other and the distance of the cutting stations is greater than a log length and that in each case horizontal Axes of rotation of the cutting discs a turning device is interposed by 90 ° for the trunk.
  • a machining station with mirror images of each other opposing cutting discs is provided and if at the cutting station a turning device by 90 ° for the one-sided processing trunks and a reversing device the feed in the direction of the cutting station Reverses.
  • the cylindrical surface of the cutting discs is similar to a tread on the surface of a Tribe, especially an already straightened side surface on and the projecting wreath with an approximately tapered or triangular cross-section cuts through presses into the surface of the wood, the height of the ribbed ring over the cylinder surface of the penetration depth corresponds.
  • the cutting discs could also be side by side horizontal circular saw blades. These thin ones Circular saw blades e.g. conical saws also produce one negligible chip fall.
  • the depth of penetration through scratches, Cutting or pressing is not deeper than the squared timber, which is a valuable target product, so maximum as deep as the intended removal, e.g. 5-10 mm. This Measures must therefore not leave any visible traces on the squared timber leave.
  • the cutting discs produce flakes that are cut by the Breakthroughs run under the tools or their cutting edges and according to the above-mentioned scoring or the press edges or break perforations and behind the cutting discs, facing away from the tool side of the cutting discs, fall out. To a very small extent, the tool cutting fragments of wood are also torn out, which then immediately fall down on the tool side. Therefore, it is expedient if this to the circumference of the cutting discs at least partially encompassing baffle in the radial direction following the chip fall and the area of the chips falling away from the processing side of the area separates the editing side. It is advantageous if there are separate conveyors on both sides of the baffle for separate removal of coarse ones Splinters and fragments of the tool side of the cutting discs and on the other hand the flakes from the tools facing away from the cutting discs are provided.
  • Another that makes tool changing much easier Measure provides that the cutting discs each have hubs have the drive-less centering discs and that on each hub a frustoconical support ring for the arranged along at least one spiral, above the openings attached tools for the chip drain is. It only needs the support ring for the tool change in Sharpening chamber can be exchanged. This is due to the lesser Weight of the reduced size compared to an entire Cutting disc much easier.
  • FIG. 1 shows a block forming machine in a basic illustration
  • Fig. 2 shows a cutting disc in front view
  • Fig. 3 shows the cutting disc in side view
  • Fig. 4 shows a cross section a tool mounted on the cutting disc
  • Fig. 5 a Roundwood, already flattened with cutting discs
  • Fig. 6 one Cutting disc in view
  • Fig. 7 cutting discs with guide plates
  • FIG. 8 shows a piece of a guide plate in a side view.
  • a block molding machine comprises a first one Cutting station 1 with two mirror images of each other and driven cutting discs 2, 3, which are fed Trunk or a debarked log 4 with approximately circular Mill cross-section 5 sideways so that two parallel ones Levels on the log 4 arise.
  • the cross section 6 shows the shape of the trunk after passing through the cutting station 1. There follows a turning device that flattened the side Trunk rotates 90 °. The position of the cross section 6 is 6 ' clarifies. The trunk thus positioned becomes a second Cutting station 8 fed, which also has two mirror images cutting discs 9, 10 which are in relation to one another. The result is a square timber 11 with a square shape (or rectangular) cross section 12.
  • the log 4 or the trunk is immediately in front of the cutting discs 2, 3 and 9, 10 held or positioned by rollers.
  • a block molding machine of the known type delivers as Main goods squares 11, with a large amount of waste Chips in the form of wood chips arise. This inferior Waste product from valuable logs can hardly be sold and impairs the economic operation of a block molding machine.
  • the invention now lies in a second valuable product at the same time with the squared timber 11, so not from one Intermediate product or in a downstream process.
  • This second valuable product falls as flax in a length of e.g. 7 to 12 cm, a width of e.g. 3 cm and a thickness of about 0.4 to 1 mm.
  • the frustoconical cutting discs 2, 3 and 9, 10 according to FIG. 2 on the lateral surface along one or more concentric spiral tracks 14 with tools 15 (Fig. 4), the cutting edges 16 of which are aligned approximately radially and a length of e.g. Have 7 to 12 cm.
  • the tools 15 are arranged interchangeably on the horizontal spiral tracks 14.
  • the cutting of two tools in a row have a difference in altitude of e.g. 0.5 mm on. Depending on the requirements, the height difference can be between 0.4 and 1 mm. This will cut off strips of wood that thus, for example, 10 cm long and a thickness of 0.5 mm. These strips of wood run through each one, assigned to each tool 15, recess 17 in the Cutting disc 2 (FIGS.
  • a guide surface 18 has at least one kink that breaks off the wooden strip depending on the geometry of the guide surfaces, e.g. 30 mm leads. This creates flakes with a width (usually 30 mm) from the processing zone behind the cutting disc and fall down. The length of the flakes
  • the tool 15 comprises a scoring knife 19, the next one end of e.g. 10 cm long Cutting edge 16 is arranged and that in the approximately vertical Cut the tool 15 the wooden strip from which the Flax chips are created, exactly separated from the sides.
  • FIGS. 2 and 3 there is also a non-driven free-running one Centering disk 20 shown, which the log 4 or the trunk in the area of the cutting station 1 and 8 against moves sideways and prevents vibrations with the aim of producing evenly thin flakes.
  • a Platen 21 is the tools 15, especially those in the outer diameter range of the cutting discs 2, 3, 9, 10, assigned.
  • the log 4 or the Stem also from.
  • a log 4 is shown in dashed lines, as it leads to the cutting disc 2, for example becomes. It runs in the direction of the arrow to the right with its front side on the cutting disc 2 and is by the tools 15 laterally flattened.
  • the flattening takes on the Centering disks 20.
  • the cutting disks are 2, 3 arranged in mirror image, so that the laterally flattened Trunk 4 on both sides through the centering disks 20 is held.
  • a perforation for exact dimensioning and parallel To give shape to the flaxboard width and thus the quality 5, in the course of the combined Squared wood and flax chip production on the left and right cutting discs 22 on the log 4. You press or score a perforation from parallel lines when feeding of the trunk or log 4. If that's essentially tools aligned radially on the cutting disc Attack the log 4 from top to bottom, then loosen them Tools flakes off the trunk, their width the distance the cutting disks 22 correspond to each other.
  • circular cutting disk 22 comprises a narrow disc with a circular cylindrical surface 23 on the circumference, which rests on the wood and a disc with Wreath 24 (ribbed wreath), which as an acute-angled isosceles triangle is formed in cross section and worried about indentation or scratching. It can also be a knife disc, similar to a food slicer or a powered circular saw blade, can be used.
  • Fig. 7 shows a pair of opposing cutting disks 2, 3 in principle. The one on the cone surface arranged tools and the breakthroughs have been omitted. Close at the two cutting discs 2, 3 towards guide plates 25 and 26, which the tool side of the Separate the side of the flake chip case. The fragments, which are unsuitable for OSB board production Direction of arrow 27 on a conveyor belt 28. The flakes however, on the other side of the guide plate 25, 26 according to arrow 27 'on the conveyor belt 29. A guide plate 25 is shown fragmentarily in side view in FIG. 8.
  • the cutting disc 2 also has two parts represented by dashed lines.
  • a hub 30 with the centering disc 20 carries the replaceable and screwed support ring 31 for the tools.
  • the support ring 31 is part of the cutting disc 2 and also has the breakthroughs that are important for the chip flow (in FIG. 7 not shown).
  • the design as a hub ring washer enables the knife carrier rings to be exchanged at short notice for generation, e.g. required longer flax chip strips in the desired dimension. By quick This means that the required change can be made on each pair of chip rings Flax chip dimensions are generated in order for different Flax particle board the appropriate wood strip dimension to create.
  • the system can also be drenched via a steaming tunnel of the wood, but the squared timber quality the quality of the flake also increases.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Crushing And Pulverization Processes (AREA)
EP98890193A 1997-07-18 1998-07-03 Dispositif pour la fabrication de bois équarri Withdrawn EP0891846A3 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT445/97U 1997-07-18
AT44597U AT2146U1 (de) 1997-07-18 1997-07-18 Blockformungsmaschine
AT44597U 1997-07-18

Publications (2)

Publication Number Publication Date
EP0891846A2 true EP0891846A2 (fr) 1999-01-20
EP0891846A3 EP0891846A3 (fr) 2000-10-18

Family

ID=3490809

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98890193A Withdrawn EP0891846A3 (fr) 1997-07-18 1998-07-03 Dispositif pour la fabrication de bois équarri

Country Status (2)

Country Link
EP (1) EP0891846A3 (fr)
AT (1) AT2146U1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0914913A3 (fr) * 1997-11-04 2000-10-18 Holzindustrie Preding Gesellschaft m.b.H. Dispositif pour la fabrication de bois équarri à partir de troncs d'arbre
AT407233B (de) * 1999-04-09 2001-01-25 Johann Wolf Vorrichtung zum erzeugen von vierkantbalken aus baumstämmen
WO2001019575A1 (fr) * 1999-09-14 2001-03-22 Hans Dietz Procede, dispositif et coupeuse a copeaux pour la production de panneaux definis tridimensionnels

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999000232A1 (fr) * 1997-06-27 1999-01-07 Esterer Wd Gmbh & Co. Procede pour la fabrication de copeaux longs
CN109397396B (zh) * 2018-12-20 2020-09-08 徐州市宏达木业有限公司 一种门板倒角装置
CN109397397B (zh) * 2018-12-20 2020-09-08 徐州市宏达木业有限公司 一种木条弧面切割装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2889859A (en) * 1956-12-11 1959-06-09 Donald L Johnson Method and means for cutting a flat surface on wood by producing wood flakes from the material as removed
US3330315A (en) * 1964-05-09 1967-07-11 Dominion Tar & Chemical Co Log reducer
US3360024A (en) * 1964-08-05 1967-12-26 Linck Geb Apparatus for dividing logs into chips
US3776288A (en) * 1967-04-12 1973-12-04 D Johnson Blade assemblies for flacing apparatus
DE1913295A1 (de) * 1969-03-15 1970-10-22 Linck Maschf & Eisen Messerkopf zum Profilzerspanen von Rundholz
AT355792B (de) * 1977-08-05 1980-03-25 Lindner Werk Gmbh Vorrichtung zum abflachen von balken oder staemmen
FI802468A7 (fi) * 1980-08-06 1981-01-01 Kauko Rautio Terä parrunveistokonetta varten.
DE3045107A1 (de) * 1980-11-29 1982-07-01 Wurster u. Dietz GmbH u. Co Maschinenfabrik, 7400 Tübingen Zerspanerwerkzeug
SU1100094A1 (ru) * 1982-01-29 1984-06-30 Центральное Конструкторское Бюро По Мелиоративным Машинам Рабочий орган рубительной машины
FI69981C (fi) * 1983-01-21 1986-09-12 Martti Vuollet Hugg
DE19504030C1 (de) * 1995-02-08 1996-07-04 Dietz Hans Prof Dr Verfahren und Vorrichtung zum Herstellen von Strands

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0914913A3 (fr) * 1997-11-04 2000-10-18 Holzindustrie Preding Gesellschaft m.b.H. Dispositif pour la fabrication de bois équarri à partir de troncs d'arbre
US6325119B1 (en) 1999-04-07 2001-12-04 Johann Wolf Device for producing square beams from tree trunks
AT407233B (de) * 1999-04-09 2001-01-25 Johann Wolf Vorrichtung zum erzeugen von vierkantbalken aus baumstämmen
WO2001019575A1 (fr) * 1999-09-14 2001-03-22 Hans Dietz Procede, dispositif et coupeuse a copeaux pour la production de panneaux definis tridimensionnels

Also Published As

Publication number Publication date
EP0891846A3 (fr) 2000-10-18
AT2146U1 (de) 1998-05-25

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