EP0222728A1 - Appareil de production de poutres prismatiques ou pyramidales - Google Patents

Appareil de production de poutres prismatiques ou pyramidales Download PDF

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Publication number
EP0222728A1
EP0222728A1 EP86890263A EP86890263A EP0222728A1 EP 0222728 A1 EP0222728 A1 EP 0222728A1 EP 86890263 A EP86890263 A EP 86890263A EP 86890263 A EP86890263 A EP 86890263A EP 0222728 A1 EP0222728 A1 EP 0222728A1
Authority
EP
European Patent Office
Prior art keywords
tree trunk
tools
machining tools
machining
processing tools
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
EP86890263A
Other languages
German (de)
English (en)
Other versions
EP0222728B1 (fr
Inventor
Johann Wolf
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.)
Wolf Systembau GmbH
Original Assignee
Wolf Systembau 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 Wolf Systembau GmbH filed Critical Wolf Systembau GmbH
Publication of EP0222728A1 publication Critical patent/EP0222728A1/fr
Application granted granted Critical
Publication of EP0222728B1 publication Critical patent/EP0222728B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B27B—SAWS FOR WOOD OR SIMILAR MATERIAL; COMPONENTS OR ACCESSORIES THEREFOR
    • B27B1/00—Methods for subdividing trunks or logs essentially involving sawing
    • B27B1/007—Methods for subdividing trunks or logs essentially involving sawing taking into account geometric properties of the trunks or logs to be sawn, e.g. curvature
    • 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
    • B27B29/00—Gripping, clamping, or holding devices for the trunk or log in saw mills or sawing machines; Travelling trunk or log carriages

Definitions

  • the invention relates to a device for producing prismatic or truncated pyramid-shaped beams from tree trunks by trimming them with at least two opposing processing tools, saws, planing, milling or the like. And with a device for generating a relative movement between the tree trunk to be processed and the processing tools.
  • Devices are also known in which trimming is carried out in accordance with the course of the tree trunk, i.e. in approximately the same thickness, using rotating planing or milling tools.
  • the tools are controlled by hand by scanning the tree trunk. This probably results in truncated pyramid-shaped beams, but the processing surfaces are non-uniform and are therefore not suitable for processing into composite beams. Beams produced in this way can rather only be used as individual supports for subordinate purposes, for example for the manufacture of scaffolding etc.
  • Trimming devices are also known (cf. DE-OS 3 155 l88 and 3 ll4 843 and AT-PS 375 862), in which the trimming tools are adjustable transversely to the trunk axis. However, the trimming tools are adjusted gradually, whereby surfaces parallel to the axis of the tree trunk can always be created.
  • the object of the invention is to provide a device which enables tree trunks to be trimmed in a straight line in a prismatic or truncated pyramid fashion in order to be able to process these beams into composite beams.
  • the areas of the beams obtained after trimming should be largely flat.
  • this object is achieved in that the machining tools are movable during trimming transversely to the direction of the longitudinal extent of the tree trunk along straight lines and inclined to the axis of the tree trunk, in particular converging towards the axis of the tree trunk.
  • prismatic bar means not only bars that are processed on four sides, but also bars that are only processed, i.e. have flat and parallel surfaces, whereas the other two surfaces are unprocessed.
  • truncated pyramid-shaped bar used in this description also means bars that only have two converging, machined surfaces.
  • the device according to the invention can be used to produce beams in which there are unworked areas between the processed surfaces, i.e. that the planes defined by the machined surfaces intersect outside the bar.
  • the device according to the invention can be designed so that the tree trunk to be processed is clamped and the processing tools on two opposite sides along the tree trunk.
  • the processing tools are mounted in a fixed frame and the tree trunk is moved on a conveyor track opposite the processing tools.
  • the device shown in FIGS. 1 to 5 comprises at both ends of the device essentially H-shaped blocks 1, which are connected to one another via longitudinal beams 2 and 3 to form a frame.
  • the supports 5 are adjustable in height with the aid of a spindle drive 6.
  • On the supports 5 two lifting arms 7 and 8 are articulated, which can be pivoted with the aid of pressure medium motors 9 and 10.
  • the lifting arms 7 and 8 are used to place the tree trunk 4 and to remove a finished bar laterally.
  • hold-downs 11 acting on the log 4 from above are provided in the frame, and pressure medium motors l2 are provided for their actuation.
  • the hold-downs ll clamp the tree trunk 4 against the supports 5.
  • two opposing processing tools l3 and l4 are provided in the device, which in the exemplary embodiment shown are milling cutters l5 which engage on opposite sides of the tree trunk 4.
  • the processing tools l3 and l4 can be moved in guides l6 along the tree trunk 4, for which purpose the processing tools have shields l7 (FIG. 3).
  • Each plate l7 has two grooved rollers l8 at the bottom, which run on a rib l9 of a T-shaped rail 20.
  • Each plate l7 furthermore has a roller 2l which engages in a downwardly open, U-shaped rail 22.
  • the guides l6 are adjustable on L-profile rails 24, 25, which are attached to the frame. In order to be able to fix the guides 16 in the frame in the desired position, clamping screws 26 are provided.
  • adjusting spindles 27 and 28 are provided at the ends of the guides 16, which can be actuated by means of hand cranks 29.
  • the guides l6 can be adjusted symmetrically to the axis 30 of the tree trunk 4 clamped in the frame, whereby in addition to an alignment of the guides l6 parallel to the axis 30 (production of prismatic beams), the guides l6 can also be aligned at an acute angle to the axis 30, so that frustoconical bars can be generated.
  • An embodiment of the device (not shown) is also conceivable, in which the guides l6 are fastened in the frame of the device parallel to the axis 30 of the tree trunk 4 and the processing tools l3 and l4 as they move along the tree trunk 4 to be processed transversely to the longitudinal extent (axis 30 ) of the tree trunk 4 are adjusted in order to achieve the desired wedge-shaped processing course following the natural conicity of tree trunks.
  • the adjustment of the machining tools relative to the shields l7 carrying them can be controlled with the aid of position-dependent actuators (similar to FIG. 6) or with the aid of reduction gears which are driven, for example, by the tension spindle 23.
  • Another possibility is to drive the drives for the transverse adjustment of the processing tools l3, l4 with respect to their shields l7 via wheels which roll on the guides l6.
  • Another possibility is to record the path covered by the processing tools l3 and l4 along the tree trunk 4 via path measuring devices (e.g. incremental encoders) and to adjust the processing tools transversely to the longitudinal extent of the tree trunk 4 or transversely to their direction of movement depending on the path covered.
  • path measuring devices e.g. incremental encoders
  • the device shown in FIGS. 1 to 5 is to be used to produce a prismatic or truncated pyramid-shaped bar on four sides, then the tree trunk, which is first machined on two opposite sides, is rotated by 90 ° and the other two sides are trimmed in a further machining step.
  • the tree trunk 4 moves past processing tools 40 to 43 which are arranged in a fixed manner with respect to the longitudinal direction of the tree trunk 4. As can be seen from FIG.
  • the processing tools 40 to 43 are mounted opposite one another in pairs in a frame 44, the processing tool pairs 40 to 43, viewed in the longitudinal direction of the tree trunk, being arranged offset from one another in order to ensure that the processing tools mesh with one another while maintaining an assumed adjustment path to avoid transverse to the direction of movement of the tree trunk 4.
  • driven transport rollers For moving the tree trunk 4 relative to the processing tools 40-43, driven transport rollers, not shown in detail, for example arranged in a pincer shape, are arranged on both sides of the frame 44. Conveyor tracks are provided in front of and behind the transport rollers for feeding the logs or beams in and out.
  • pressure medium motors 45 are provided for the transverse adjustment of the machining tool, which act via a lever linkage 46 on a guide bar 47 slidably received in the frame 44.
  • the motor 48 of the machining tool is connected to this guide bar 47.
  • motor-driven adjusting spindles or the like can also be provided. Since, in the embodiment according to FIG. 7, the axis 30 of the tree trunk 4 is inclined to the conveying direction of the tree trunk 4 through the device, the machining tool acting on the tree trunk 4 from below only needs to be adjusted to the necessary removal rate, for which purpose an adjusting screw 49 is assigned.
  • the processing tools 40 and 4l like the processing tools l3 and l4 of the embodiment according to FIGS. 1 to 5, carry out a transverse stroke which corresponds essentially to half the taper of the tree trunk 4 to be processed.
  • conical beams with flat side surfaces can be produced in an efficient continuous process.
  • This device can also be used for the production of prismatic beams.
  • the ratio between the relative movement between the tree trunk and the processing tools for the transverse stroke of the processing tools can be set within limits and can be preselected, for example with the aid of index markings, and remains unchanged for the respectively selected work process, so that the resulting one Movement of the machining tools against the tree trunk is a straight line.
  • this can be achieved in a simple manner in that markings made at both ends of the frame simplify the setting of the device in accordance with the bar thickness or the desired conicity thereof.

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Milling, Drilling, And Turning Of Wood (AREA)
  • Milling Processes (AREA)
EP86890263A 1985-11-13 1986-09-22 Appareil de production de poutres prismatiques ou pyramidales Expired - Lifetime EP0222728B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT3308/85 1985-11-13
AT0330885A AT390025B (de) 1985-11-13 1985-11-13 Vorrichtung zum herstellen prismatischer oder pyramidenstumpffoermiger balken

Related Child Applications (3)

Application Number Title Priority Date Filing Date
EP89104356A Division EP0327139A3 (fr) 1985-11-13 1986-09-22 Dispositif pour la protection de poutres prismatiques ou sous forme de pyramides tronquées
EP89104356A Division-Into EP0327139A3 (fr) 1985-11-13 1986-09-22 Dispositif pour la protection de poutres prismatiques ou sous forme de pyramides tronquées
EP89104356.4 Division-Into 1986-09-22

Publications (2)

Publication Number Publication Date
EP0222728A1 true EP0222728A1 (fr) 1987-05-20
EP0222728B1 EP0222728B1 (fr) 1990-02-07

Family

ID=3548539

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86890263A Expired - Lifetime EP0222728B1 (fr) 1985-11-13 1986-09-22 Appareil de production de poutres prismatiques ou pyramidales

Country Status (7)

Country Link
US (1) US4750535A (fr)
EP (1) EP0222728B1 (fr)
AT (1) AT390025B (fr)
CA (1) CA1267592A (fr)
DE (1) DE3668826D1 (fr)
FI (1) FI84235C (fr)
PL (1) PL149664B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662387A1 (fr) * 1990-05-23 1991-11-29 Esterer Ag Maschf Procede pour produire un bois de construction a partir de troncs d'arbres ou de modeles, et dispositif pour la mise en óoeuvre du procede.
AT406131B (de) * 1998-07-17 2000-02-25 Wolf Systembau Gmbh & Co Kg Verfahren und vorrichtung zum herstellen von acht- oder mehrseitigen kanthölzern
US6325119B1 (en) 1999-04-07 2001-12-04 Johann Wolf Device for producing square beams from tree trunks

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0286701B1 (fr) * 1987-04-13 1992-06-24 Johann Wolf GmbH KG Procédé et dispositif pour le débitage de grumes rondes
AT397224B (de) * 1991-05-14 1994-02-25 Wolf Systembau Gmbh & Co Kg Verfahren und vorrichtung zum herstellen von vierkantern aus baumstämmen od. dgl.
US5765615A (en) * 1996-09-20 1998-06-16 Optimil Machinery, Inc. Canter with curve-cutting capability
AT2298U1 (de) * 1997-11-04 1998-08-25 Holzindustrie Preding Ges M B Vorrichtung zur herstellung von kantholz aus rundhölzern
ATE254016T1 (de) * 1997-11-04 2003-11-15 Holzindustrie Preding Ges M B Vorrichtung zur herstellung von kantholz aus rundhölzern
AT406840B (de) * 1999-02-09 2000-09-25 Wolf Systembau Gmbh & Co Kg Vorrichtung zum bearbeiten von baumstämmen
CA2409636A1 (fr) * 2002-10-24 2004-04-24 Equipement Hydraulique Boreal Inc. Machine de traitement de grumes a systeme a pivot
CN103831884A (zh) * 2012-11-22 2014-06-04 南京林业大学 一种原木精准制备正六棱柱体方法
CN106493658B (zh) * 2014-11-05 2018-03-27 南京林业大学 一种用于压紧正六棱柱毛坯材的制造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151188A1 (de) * 1969-03-05 1982-08-12 Kockums Industri AB, 826 01 Söderhamn Verfahren zur bearbeitung sich verjuengender staemme und vorrichtung zur durchfuehrung dieses verfahrens

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE304676C (fr) *
US3190326A (en) * 1960-05-27 1965-06-22 Standal George Martin Chipper apparatus
US4272256A (en) * 1979-10-15 1981-06-09 Koppers Company Inc. Method for heating oxygen containing gas in conjunction with a gasification system
CH646366A5 (en) * 1979-11-28 1984-11-30 Wurster & Dietz Gmbh Co Sawing machine and method of operating it
SE431621B (sv) * 1980-07-03 1984-02-20 Kockums Ind Ab Anordning for inleggning av virkesblock lengs en inmatningsbana i en virkesbearbetningsmaskin
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
SE444784B (sv) * 1984-09-14 1986-05-12 Eriksson Ab A K Sagutrustning
AT382549B (de) * 1985-09-30 1987-03-10 Wolf Johann Gmbh Kg Verfahren und vorrichtung zum besaeumen von baumstaemmen

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3151188A1 (de) * 1969-03-05 1982-08-12 Kockums Industri AB, 826 01 Söderhamn Verfahren zur bearbeitung sich verjuengender staemme und vorrichtung zur durchfuehrung dieses verfahrens

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2662387A1 (fr) * 1990-05-23 1991-11-29 Esterer Ag Maschf Procede pour produire un bois de construction a partir de troncs d'arbres ou de modeles, et dispositif pour la mise en óoeuvre du procede.
BE1004756A5 (fr) * 1990-05-23 1993-01-26 Esterer Ag Maschf Procede d'obtention de bois d'oeuvre a partir de troncs d'arbre ou de planches de sciage de tronc, et dispositif pour la mise en oeuvre du procede.
AT406131B (de) * 1998-07-17 2000-02-25 Wolf Systembau Gmbh & Co Kg Verfahren und vorrichtung zum herstellen von acht- oder mehrseitigen kanthölzern
US6240988B1 (en) 1998-07-17 2001-06-05 Wol Systembau Gesellschaft M.B.H. Process and device for production of octagonal or polygonal beams
US6325119B1 (en) 1999-04-07 2001-12-04 Johann Wolf Device for producing square beams from tree trunks

Also Published As

Publication number Publication date
AT390025B (de) 1990-03-12
FI864501A (fi) 1987-05-14
ATA330885A (de) 1989-08-15
FI864501A0 (fi) 1986-11-05
DE3668826D1 (de) 1990-03-15
US4750535A (en) 1988-06-14
PL149664B1 (en) 1990-03-31
EP0222728B1 (fr) 1990-02-07
PL261949A1 (en) 1987-08-24
FI84235B (fi) 1991-07-31
FI84235C (fi) 1991-11-11
CA1267592A (fr) 1990-04-10

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