EP0808236B1 - Verfahren und vorrichtung zum herstellen von strands - Google Patents

Verfahren und vorrichtung zum herstellen von strands Download PDF

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Publication number
EP0808236B1
EP0808236B1 EP96902976A EP96902976A EP0808236B1 EP 0808236 B1 EP0808236 B1 EP 0808236B1 EP 96902976 A EP96902976 A EP 96902976A EP 96902976 A EP96902976 A EP 96902976A EP 0808236 B1 EP0808236 B1 EP 0808236B1
Authority
EP
European Patent Office
Prior art keywords
strands
tools
slits
transverse
longitudinal
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.)
Expired - Lifetime
Application number
EP96902976A
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German (de)
English (en)
French (fr)
Other versions
EP0808236A1 (de
Inventor
Hans Prof. Dr. Dietz
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Individual
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Individual
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Publication of EP0808236A1 publication Critical patent/EP0808236A1/de
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Publication of EP0808236B1 publication Critical patent/EP0808236B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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 method for producing strands made of round wood, the strands being a length in the direction of the fibers a width between 200 and 350 mm and across the grain and have a thickness between 1 and 15 mm.
  • the invention relates an apparatus for making strands Round timber, with a transport device for the round timber and with at least one chipper device for cutting the Strands, where the strands in the fiber direction have a length between 200 and 350 mm as well as a width across the grain and Have a thickness between 1 and 15 mm.
  • a method and an apparatus of the above Kind are known, for example from DE 38 37 200 C1.
  • the diameter of the chipper drum is approx. 60 cm. With the known machine become relative processed small logs with a diameter of about 15 cm, that is, cut pieces of branch and the like. The Roundwoods are completely machined.
  • a method and a device is known from US Pat. No. 4,681,146 known for making strands.
  • the beaches will be there also made from the already mentioned log, by they in a posting station with their broadside on one be planed like a table. By an oscillating The logs are cut into flat chips. The Flat chips are then further processed using knife rollers divided.
  • the logs are also used in this known method completely machined.
  • Machined by the profile chippers and the corner cutters or machined areas are used in conventional profiling processes transformed into wood chips like those in the cellulose industry and the chipboard industry can.
  • the invention is based on the object To further develop methods of the type mentioned at the beginning, that the production of strands also outside of an area of application is possible with the relatively small logs (Pieces of branch) are completely machined.
  • this task solved in accordance with the invention in that the log is a single tree trunk is that the tree trunk initially has longitudinal slots in the outside of a trunk of the tree trunk lying remaining areas is provided by the width are spaced from each other, and that then the strands from the entire remaining areas can be cut.
  • the task is further achieved by a device of the beginning mentioned type according to the invention solved in that the transport device is designed to transport individual tree trunks, that the at least one chipper device engages with the entire remaining areas outside of a main product of the Trunk can be brought, and that the chipper device first Tools for making longitudinal slots in the remaining areas has, the longitudinal slots by the width of each other are spaced.
  • the invention is fundamentally separate from the previous ones known methods of making strands. This procedure were on such starting materials, namely logs, limited that completely machined when making strands were. The raw materials were therefore only proportionate small logs are considered, that is, cut branches, thicker Twigs and trunks of very young trees at best.
  • the invention extends the field of application of Process for the production of strands or equivalent Devices also on such woodworking processes to whom the solid wood of large logs, namely tree trunks, only partially machined and the rest of the tree trunk too massive Wood products is processed.
  • woodworking processes are of great economic importance and will used on a large scale.
  • the strands are in a single Work between the longitudinal slots by machining with the Length l along transverse slits introduced at the same time and cut with the thickness d.
  • the chipper device downstream of the transport direction has first chipper tools, the strands in one single operation between the longitudinal slots by machining with the length l along cross-slits introduced at the same time and cut with the thickness d.
  • one the remaining areas after making the longitudinal slots first in a first Provide work steps with cross slots that are l are spaced from each other, and the strands are then in cut in a second operation with the thickness d.
  • the chipper device second tools for making the cross slots in the remaining areas has, the transverse slots by the length l are spaced from each other, as well as in the transport direction downstream of the first tools and the second tools third tools for cutting the beaches with the thickness d includes.
  • An exemplary embodiment of an inventive device is also preferred Procedure in which the strands are initially set to two opposite sides of the tree trunk and then on the both sides of the tree trunk offset by 90 ° get cut.
  • This measure has the advantage that sequences known per se of work steps, as known in profiling processes are can be used. For example, two Processing stations located one behind the other in the transport direction are used, between which the already partially processed tree trunk is rotated 90 ° around its longitudinal axis. Alternatively, it is possible to have only one such processing station to be provided and the tree trunk after leaving the processing station by 90 ° and using a Concentricity again at the entrance of the processing station to lead.
  • the longitudinal slots are cut as longitudinal cuts generated.
  • the longitudinal slots can also generated by sawing.
  • transverse slots Cross sections by cutting or the cross slots by sawing to create.
  • the first tools alternatively as the first knife or trained as first saws
  • the second tools as second knife or alternatively be designed as a second saw can.
  • Fig. 1 designates a conventional device as a whole for making strands.
  • a feed 11 in the a slide 12 runs, logs 13 are in the direction of a Arrow 14 pushed through the feed 11.
  • the logs 13 are promoted transversely to their longitudinal axis.
  • a rotating chipping tool 20 Immediately at the exit of the feed 11 is a rotating chipping tool 20.
  • the chipping tool 20 is driven by a shaft 21 in the direction of rotation, as with indicated by an arrow 22.
  • knives 23 On the circumference of the cutting tool 20 there are knives 23 which extend over the circumference of the cutting tool 20 project.
  • the logs fed in from the side 13 thus enter the engagement area of the rotating knives 23, as indicated by dashed lines in Fig. 1.
  • FIG. 1 The illustration in Fig. 1 is extremely schematic. It understands that the beaches 24 shown are still in further stations can be reworked, for example further divided, profiled on their edges etc., as this from the beginning referenced prior art is known in detail.
  • Fig. 2 shows the difference to conventional Wood chips or other shavings a beach 24 in enlarged view.
  • An end face 26 of the beach 24 clearly shows fibers 27 of the wood.
  • the length l of the beach 24 in the fiber direction is significantly larger than the width b or the thickness d, each across the grain.
  • strands In practice, strands have a length l between 100 and 350 mm, a width b between 1 and 15 mm and a thickness d between 1 and 6 mm. But there are also deviations from these values possible.
  • the strands 24 can also have a non-cuboid shape, for example one prismatic or other shape, so that individual strands 24 joined together in a defined orientation and positioning and to composite beams or boards, so-called “beach boards", can be glued.
  • a non-cuboid shape for example one prismatic or other shape
  • Fig. 3 shows a schematic illustration Rundholz 30, namely a complete tree trunk.
  • Main goods 32 On a End face 31 at the thin end of tree trunk 30 is one Main goods 32 shown. This is an area with a rectangular or square cross-sectional area in the center of the tree trunk 30. The corresponding area corresponds the area of the tree trunk 30 from which the said main goods 32, namely beams, boards and the like can be produced.
  • the remaining areas 33 are conventional Profiling process partially processed into side boards, partly machined by wood chip production and sawing.
  • strands 38 produced, the length l, width b and thickness d is defined.
  • Figures 4 and 5 show two schematic perspective side views of the tree trunk 30, Figures 6 to 11 cross-sectional views the tree trunk 30 during various processing steps, and Fig. 12 finally shows a perspective view a device used.
  • the longitudinal cuts 35 attached.
  • the tree trunk 30 with a in Fig. 12 only schematically as Arrows indicated transport device 50 in the longitudinal direction passed through two groups of fixed knives 51.
  • the knife 51 produce the longitudinal cuts 35 in the tree trunk 30 down to a boundary line 40 shown in FIG. 6, which is also a side edge of the main article 32. How from 6 and 12 can be clearly seen, the longitudinal sections 35 for example simultaneously on two opposite Sides of tree trunk 30 attached.
  • the tree trunk 30 could then be used to cut the beach 38 run against a graded group of fixed knives, in the direction of transport, i.e. the longitudinal direction of the tree trunk 30, are aligned and already according to length l and width b cut defined beach 38 to a predetermined thickness.
  • a such device is already in the beginning, for example US 4,371,020.
  • the cross sections 36 are in a single Operation along with the cut of the strands 38 attached.
  • the chippers shown by way of example in FIG. 12 serve for this purpose 52.
  • the chippers 52 are driven by means of shafts 53.
  • the Shafts 53 extend along axes 54 transverse to Longitudinal extension of the tree trunk 30.
  • the chippers 52 rotate in the direction of Arrows 55.
  • the chippers 52 are with conical machining surfaces Mistake.
  • knives 60 On the several aisles of conical Machining surfaces are knives 60, each have a main cutting edge 61 and a secondary cutting edge 62.
  • the main cutting edge 61 and the secondary cutting edge 62 can also be cut through separate knives are formed, which are distributed over the circumference are. In this way, in the illustrated embodiment on both sides of the tree trunk 30 each there Machining the remaining area 33 next to the main item 32.
  • Fig. 8 shows the state 30b of the tree trunk 30, in which the both mentioned remaining areas 33 are completely removed. One side 44 of the main article 32 is thus already finished.
  • the tree trunk 30 is now rotated by 90 ° about its longitudinal axis and thus reaches the position shown in FIG. 9. In this position, the tree trunk 30 is in turn by means of the Arrangement according to FIG. 12 in the remaining ones lying to the side The remaining areas 33 'are provided with longitudinal cuts 35' (State 30c).
  • the device according to FIG. 12 arranged twice in the transport direction of the tree trunks 30 be. Between the two devices, either the Tree trunk 30 can be rotated 90 °, or the two individual devices are rotated 90 ° to each other. It is also possible to remove the tree trunk 30 after leaving the one shown in FIG Arrangement to rotate 90 ° and again by means of a concentric run attributable to the input of the device according to FIG. 12.
  • the remaining areas 33, 33 ' completely broken down into strands 38, 38'. It however, it is understood that even a partial disassembly the remaining areas 33, 33 'is possible if, for example would like to process parts of the remaining areas 33, 33 'into boards.
  • the corresponding depths of engagement (boundary lines 40) must then be set accordingly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Ropes Or Cables (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Coating With Molten Metal (AREA)
  • Dry Formation Of Fiberboard And The Like (AREA)
  • Greenhouses (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Manufacture, Treatment Of Glass Fibers (AREA)
EP96902976A 1995-02-08 1996-02-02 Verfahren und vorrichtung zum herstellen von strands Expired - Lifetime EP0808236B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19504030 1995-02-08
DE19504030A DE19504030C1 (de) 1995-02-08 1995-02-08 Verfahren und Vorrichtung zum Herstellen von Strands
PCT/EP1996/000433 WO1996024473A1 (de) 1995-02-08 1996-02-02 Verfahren und vorrichtung zum herstellen von strands

Publications (2)

Publication Number Publication Date
EP0808236A1 EP0808236A1 (de) 1997-11-26
EP0808236B1 true EP0808236B1 (de) 1998-08-19

Family

ID=7753392

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96902976A Expired - Lifetime EP0808236B1 (de) 1995-02-08 1996-02-02 Verfahren und vorrichtung zum herstellen von strands

Country Status (11)

Country Link
EP (1) EP0808236B1 (xx)
CN (1) CN1065809C (xx)
AT (1) ATE169857T1 (xx)
AU (1) AU692059B2 (xx)
BR (1) BR9607457A (xx)
CA (1) CA2212575C (xx)
DE (2) DE19504030C1 (xx)
ES (1) ES2120805T3 (xx)
FI (1) FI107892B (xx)
NZ (1) NZ301686A (xx)
WO (1) WO1996024473A1 (xx)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19632998B4 (de) * 1996-08-16 2005-07-28 Siempelkamp Maschinen- Und Anlagenbau Gmbh & Co. Kg Verfahren zur Herstellung von Komposit-Balken aus Holzstrands mit holznahen Quellwerten
DE19726396C1 (de) * 1997-06-21 1999-02-25 Inter Wood Maschinen Vorrichtung zur Herstellung von schmalen Furnierstreifen
DE19727127C1 (de) * 1997-06-26 1999-01-21 Inter Wood Maschinen Verfahren und Vorrichtung zur Herstellung von schmalen Furnierstreifen
AU8629998A (en) * 1997-06-27 1999-01-19 Esterer Wd Gmbh & Co. Device for producing strands
AT2146U1 (de) * 1997-07-18 1998-05-25 Holzindustrie Preding Ges M B Blockformungsmaschine
DE19829112C1 (de) * 1998-06-30 2000-03-30 Esterer Wd Gmbh & Co Hackschnitzel, Verfahren und Vorrichtung zum Erzeugen eines Hackschnitzels sowie zum Profilieren eines Baumstammes und deren Verwendungen
US6958147B1 (en) 1998-10-26 2005-10-25 Licentia Ltd Use of VEGF-C to prevent restenosis
AT3796U1 (de) * 1999-07-14 2000-08-25 Holzindustrie Preding Ges M B Anordnung zur herstellung von holzspänen aus rundholz od. dgl.
WO2001019575A1 (de) * 1999-09-14 2001-03-22 Hans Dietz Verfahren und vorrichtung zum herstellen von dreidimensional definierten strands, sowie zerspaner
DE19947399C2 (de) * 1999-10-01 2001-07-26 Pallmann Kg Maschf Messerträger für eine Zerspanervorrichtung
DE10047265C2 (de) * 2000-09-23 2002-10-24 Siempelkamp Gmbh & Co Kg G Verfahren und Vorrichtung zum Herstellen von Strands
DE10327848B4 (de) 2003-06-18 2006-12-21 Kay Brandenburg Holzteilchen-Gemenge für einen Holz-Kunststoff-Verbundwerkstoff und Verfahren zur Herstellung des Holzteilchen-Gemenges
DE102010047253B4 (de) * 2010-10-01 2013-04-18 Doka Industrie Gmbh Vorrichtung zur Herstellung von Makrofasern aus Holzstämmen und Verfahren zur Herstellung eines Holzverbundwerkstoffes mittels der Makrofasern
CN108908497A (zh) * 2018-06-30 2018-11-30 广东知识城运营服务有限公司 一种树木开段装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB853929A (en) * 1956-12-14 1960-11-09 Klara Linck Improvements in or relating to dividing round timber logs
CH352487A (de) * 1956-12-14 1961-02-28 Linck Maschf & Eisen Verfahren und Einrichtung zum Zerteilen von Holzkörpern, vorzugsweise Rundholzstämmen
US4149577A (en) * 1977-03-24 1979-04-17 Matusewicz William P Cant forming machine
CA1098423A (en) * 1978-03-13 1981-03-31 James K. Welsh Process for preparation of long wood strands
US4371020A (en) * 1978-03-13 1983-02-01 Macmillan Bloedel Limited Three-step process for preparation of long wood strands
US4300604A (en) * 1980-05-12 1981-11-17 Zimmerman Edwin H System to produce wood products from peeler core logs
DE3114843C2 (de) * 1981-04-11 1986-02-27 Wurster u. Dietz GmbH u. Co. Maschinenfabrik, 7400 Tübingen Verfahren zur Verarbeitung von Rundholz sowie Vorrichtung zur Durchführung des Verfahrens
CA1192474A (en) * 1984-05-22 1985-08-27 Frank F. Liska Method and apparatus for producing engineered wood flakes, wafers or strands

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022123936A1 (de) 2022-09-19 2024-03-21 Peter Vente GmbH & Co. KG Vorrichtung zur Aufbereitung von langgestreckten Holzelementen

Also Published As

Publication number Publication date
NZ301686A (en) 1998-12-23
DE19504030C1 (de) 1996-07-04
WO1996024473A1 (de) 1996-08-15
AU4717596A (en) 1996-08-27
DE59600456D1 (de) 1998-09-24
FI973154A0 (fi) 1997-07-30
FI107892B (fi) 2001-10-31
CN1173840A (zh) 1998-02-18
FI973154A (fi) 1997-07-30
AU692059B2 (en) 1998-05-28
CA2212575A1 (en) 1996-08-15
EP0808236A1 (de) 1997-11-26
ES2120805T3 (es) 1998-11-01
CN1065809C (zh) 2001-05-16
CA2212575C (en) 2000-12-12
ATE169857T1 (de) 1998-09-15
BR9607457A (pt) 1998-12-15

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