EP1389509A2 - Procédé et dispositif de traitement d'articles à scier - Google Patents

Procédé et dispositif de traitement d'articles à scier Download PDF

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Publication number
EP1389509A2
EP1389509A2 EP03015863A EP03015863A EP1389509A2 EP 1389509 A2 EP1389509 A2 EP 1389509A2 EP 03015863 A EP03015863 A EP 03015863A EP 03015863 A EP03015863 A EP 03015863A EP 1389509 A2 EP1389509 A2 EP 1389509A2
Authority
EP
European Patent Office
Prior art keywords
zero line
conveyor belt
cut
section
cutting
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
EP03015863A
Other languages
German (de)
English (en)
Other versions
EP1389509A3 (fr
EP1389509B1 (fr
Inventor
Bernhard Rathke
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.)
B Keck GmbH
Original Assignee
B Keck 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 B Keck GmbH filed Critical B Keck GmbH
Publication of EP1389509A2 publication Critical patent/EP1389509A2/fr
Publication of EP1389509A3 publication Critical patent/EP1389509A3/fr
Application granted granted Critical
Publication of EP1389509B1 publication Critical patent/EP1389509B1/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
    • B27B7/00—Sawing machines working with circular saw blades, specially designed for length sawing of trunks
    • B27B7/04—Sawing machines working with circular saw blades, specially designed for length sawing of trunks by making use of a plurality of circular saws mounted on a single spindle; Arrangements for adjusting the mutual distances
    • 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
    • B27B25/00—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees
    • B27B25/04—Feeding devices for timber in saw mills or sawing machines; Feeding devices for trees with feed chains or belts
    • 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
    • B27B31/06—Adjusting equipment, e.g. using optical projection
    • 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
    • B27B5/00—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor
    • B27B5/02—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only
    • B27B5/04—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for edge trimming

Definitions

  • the invention relates to a method and an apparatus for processing of sawdust.
  • a sawing device is used in the production of wood blanks Sawdust fed, which is mostly by several saw blades at the same time is cut.
  • the sawdust consists, for example, of trimmed or untrimmed solid wood boards, basically all sawn goods from the field of solid wood cutting are used can be.
  • These sawn goods also called boards and planks, are made in the sawmill from logs.
  • When cutting the trunks are cut to a certain thickness, before these planks are dried, leaving a residual moisture of, for example, 7 to 9% remains. Be in that state the wood cuts especially for interior work, for stairs, Furniture, parquet as well as used in building construction and other industries.
  • the sawing material has so far been the sawing device on a fixed zero line fed. To this fixed zero line of the sawing device are also further arranged at a fixed or adjustable distance from each other Saw blades aligned. The zero line is always on the drive side the saw shaft positioned.
  • the flat V-shaped or curved Sawdust is used for trimming or producing a first complete cut aligned to the zero line, runs completely the cutting area and is cut into strips or scantlings.
  • the cut surfaces enclose an angle that is larger or smaller than 90 °, which makes for example a trapezoidal Cross section arises.
  • these strips or scantlings must be at an angle to the cut surfaces greater or less than 90 ° for further processing, for example planing, subjected to cut to size.
  • the invention is therefore based on the object, a method and to provide a device for processing saw material, which a high dimensional accuracy when cutting saw material.
  • the method according to the invention makes it possible for the flexible or changeable positioning of the at least one zero line at least a first cut is made in a section of the material to be sawn which lies essentially flat on the conveyor belt and is fed to the cutting area in this position.
  • This will the at least first cut is substantially perpendicular to that already existing saw cut surfaces of the screed or the material to be sawn introduced, whereby dimensionally stable clippings, such as Lasts or scantlings, is cut and a rework by planing or the like may be significantly reduced or unnecessary.
  • the Zero line is positioned in the cutting area in such a way that one on the heartwood adjacent section of the material to be sawn essentially flat rests on a conveyor belt and passed through the sawing device becomes.
  • the second section of the flat V-shaped cross section of the sawing material runs freely through the sawing device without affecting done by the pressure roller or the conveyor belt. This enables that the sawdust is not in an averaged position for cutting is supplied, but for a section of the material to be sawn Alignment is experienced, which increases the dimensional accuracy.
  • the zero line can alternatively be in a range between right and left Edge of the conveyor belt so that the material to be sawed partially or completely through the cutting area.
  • a pressure roller which in is divided into several sections with different diameters or is designed as a multi-part pressure roller, the individual sections are adjustable at a distance from the contact surface.
  • the sawdust is lying flat on the conveyor belt at least in sections performed through the cutting area and at least one other section lies outside the cutting area or is at least by not holding down a platen roller or a platen section, so that only a section lying in the cutting area or between Conveyor belt and pressure roller lying and guided section flat rests on the conveyor belt.
  • the sawing material is preferably positioned in the region of the Heartwood to the zero line for a first dimensionally accurate cut to a to achieve maximum yield. If in the first processing step If only one cut has been made, the two cuts can be made again Sawing device for further processing steps for cutting Strips are fed.
  • the first processing step when aligning the sawed material several further cuts are simultaneously introduced into the section of the zero line be, which lies essentially flat on the conveyor belt.
  • This allows a first section in this first processing step of the sawn material completely - as far as possible - cut and the second section of the sawdust is processed by feeding it again become.
  • feeding the second section of the sawdust it is advantageously taken into account that either close to the first Cut a new one outside the heartwood area along the zero line Cut is made because the first cut is close to the heartwood area for the second section of the sawdust is not true to size and the heartwood preferably completely removed or that the further cuts are provided such that the first cut is close to the heartwood the zero line does not cut the bar.
  • the zero line in an outer edge area of the cutting area preferably positioned opposite the saw shaft drive along which the sawdust is guided.
  • the zero line can be a section outside the cutting area of the material to be sawn and the other section through the Cutting area are passed without the pressure roller on acts on the outside section.
  • the Zero line can be the printing roller, usually with a constant diameter is formed over the entire area of the conveyor belt extend. This allows a simple construction of the sawing device remain.
  • this positioning of the Zero line can be retrofitted to an existing sawing device that an exchange or adjustment of the pressure rollers or the Conveyor belt is required.
  • the zero line can be anywhere within the cutting area be positioned.
  • pressure rollers are advantageous provided which extend sectionally, so that for a first Half of the sawdust is an essentially flat system on the conveyor belt is possible and the second half without influencing the Printing roller is carried out freely through the cutting area.
  • the pressure rollers can also be formed in sections, so that depending the positioning of the zero line also within the cutting area a passage can be created, for example by Lifting the pressure roller upwards is formed and one pass Furthermore, the section not lying flat on the conveyor belt made possible by the cutting area.
  • the zero line on the outside Edge area of the cutting area is provided and in a second Processing step, the zero line is hidden or as another cutting line is visualized.
  • the zero line can be hidden or be provided as a further cutting line to another Allow cutting. This advantageously also allows a small number of light sources through which the Zero line and the intersection line are visualized needed to the Equip the sawing device.
  • a first and subsequent one Machining steps are programmable and via a control unit be retrieved.
  • the zero line and if necessary at least one further cutting line for the first and for the further processing steps are adjusted, which gives great flexibility and quick changeover of the sawing device even during processing of the sawn material for different geometries of cut material is made possible.
  • the zero line is preferably on the drive side positioned opposite side. Programming the zero and if necessary further cutting line can both for on the drive shaft Fixed or adjustable saw blades are made. The positioning the other cutting lines are from the zero line as a reference.
  • a first zero line is advantageously flush or arranged at a short distance from the edge of the conveyor belt and positioned the further zero line at a predetermined distance.
  • the device according to the invention in particular for implementation of the method according to the invention is a flexible arrangement at least one zero line in the feed area for a first cut of the Saw material is provided, thereby producing dimensionally stable Clippings is enabled.
  • the flexible arrangement and positioning of the at least one zero line within the cutting area allows a section of the material to be sawn with an essentially flat system on the conveyor belt is fed to the cutting area, so that a first dimensionally stable Cut can be made in the area of the planar saw material.
  • the Width of the section lying flat can be on the curved surface be adjusted so that the greatest possible dimensional accuracy is given.
  • a sawmill with a heartwood area can change the width of the section be trained and located between the heartwood and extend an outermost edge.
  • the zero line is visualized by a light source and is by a Positioning unit advantageously at least along the cutting area positionable. This allows the zero line to be on both a left and also be provided on a right edge of the cutting area, so that an area of the material to be sawn between the conveyor belt and the Pressure roller passes through the sawing device and the other area without Influence is passed through the sawing device.
  • the zero line between the left and right margins or in a central area of the cutting area is adjustable, for example when cutting a sawn good a pressure roller is provided, which is only in some areas extends transversely to the cutting area, thus one or individual sections of the sawn material lie essentially flat on the conveyor belt can.
  • a guide bar is provided, which is advantageously at least between the saw blade and the end of the conveyor belt.
  • the use of the guide bar is special then provided if the zero line is within the cutting range with a small distance to the lateral edge area of the transport roller and pressure roller is positioned. After full insertion of the cut is essentially outside the cutting area lying section of the sawdust still from the transport roller and pressure roller for removal, captured by the guide bar is supported.
  • a further transport conveyor is provided, which connects to the side and at least from the saw blade extends from the saw to the end of the transport device. Thereby the section of the material to be sawn outside the cutting area removed after the cut along the zero line and if necessary the feed area for a subsequent processing step are fed.
  • the pressure rollers extend over the entire width of the conveyor belt, the width of the conveyor belt corresponds to the cutting area. Deviations from this are possible as for example the pressure roller protrudes over the edge of the Conveyor belt out or does not extend to the edge and allow also the implementation of the process and the use of Contraption.
  • conveyor belt is only an example and can be designed be as a roller belt, as a chain conveyor belt or the like. Also can promote the separation of the function of support and drive be provided. Likewise, the printing rollers can also promote support the sawing material or carry it out alone and in this case the conveyor belt is only designed as a support.
  • FIGs 1 to 3 is a device 11 for processing sawing material 12 shown in several perspectives.
  • the device 11 has at least one conveyor belt 13 through which the material to be sawn 12 or more saw blades 14 is supplied.
  • the sawdust 12 is by at least one pressure roller 16 before and after the saw blades 14 held down so that the surface of the conveyor belt 13 can attack the saw material 12 and ensure transport.
  • the distance between the saw blades 14 is within one Cutting area 17 adjustable and are on a common shaft 18 driven by a motor 19.
  • the saw blades 14 can with a fixed setting, a so-called fixed hook on shaft 18 be positioned or displaceable on the shaft 18 as a so-called Sliding clip can be arranged by a sleeve.
  • the shaft 18 can have a counter bearing at an end opposite the motor exhibit. Furthermore, alternative or additional storage locations be provided for low-vibration mounting of the saw blades 14 for an exact cut.
  • the device 11 has a programmable control unit 21 for controlling the motor 19 and the cutting speed of the saw blades 14.
  • the sawdust 12 becomes in a feed area 23 according to FIGS. 2 and 3 on the conveyor belt 13 placed and runs through the cutting area 17.
  • the Conveyor belt 13 becomes the sawdust 12, which after passing through of the cutting area 17 at least one clippings from a first section 26 and a second section 27 led out of the device 11 and a removal device 28.
  • This removal device 28 guides the clippings, for example cut ones Moldings that have an edge length of up to approx. 20 to 25 mm or Scantlings with a longer edge length for further processing or for storage.
  • the sections to be cut further 26, 27 of the material to be sawn 12 are conveyed to a conveyor 29
  • Feed area 23 of the device 11 is conveyed to the device 11 to feed again for editing.
  • Light sources 31 are provided above the cutting area 17 visualize a zero line 32 and further intersection lines 33, 34 and 36.
  • the light source 31 is preferably formed by a laser that in the visible wave spectrum works around the lines on the feed area 23 to project.
  • the lines visualized by the light sources 31 align with the saw blades 14 positioned on the shaft 18.
  • the light sources 31 are each connected to a positioning unit 37.
  • the positioning units 37 are controlled by the control unit 21, so that the light source 31 is free across the cutting area 17 is positionable and adjustable, that is, the position of the light source 31 is assigned to a position of the saw blade 14.
  • the positioning unit 37 includes, for example Linear operation through which the light source 31 can be moved on guides is arranged. Belt, chain, thread, threaded spindle drives, pneumatic, electric, hydraulic drives or a combination of these can be used.
  • a light source 31 is advantageously provided for each saw blade 14.
  • the distances of the saw blades 14 from each other the saw blade 14 provided in the zero line 32 is calculated from.
  • the light sources 31 are positioned analogously Positioning of the zero line according to FIG. 1 or FIG. 5 is taken into account. It However, fewer light sources 31 can also be provided, wherein then another depending on the desired work steps Method and positioning of the light sources 31 is required.
  • the saw material 12 is shown in cross section, which after drying mostly has a flat V-shaped cross section having.
  • a first cut with a high degree of dimensional accuracy, essentially at an angle of 90 ° the cut surfaces 38, 39 is introduced it is provided that a Zero line 32 positioned in an outer edge area of the cutting area 17 becomes.
  • this is shown in FIG Motor 19 side facing away.
  • this can also be done on a side facing the motor 19 may be provided.
  • the first paragraph 26 of the sawdust 12 is fed to the saw blades 14.
  • By the essentially flat system on the conveyor belt 13 can right-angled cuts are placed in this section 26.
  • the first Cut is adjacent to the heartwood 41, creating a first and second section 26, 27 is formed, provided no further cut is introduced simultaneously.
  • the curved saw material 12 on the other hand, has no heartwood 41, as in FIG Figure 7 is shown in more detail. Because of the cut annual rings 43 the saw material 12 experiences a radial and tangential shrinkage during drying, whereby the curvature or bowl of the sawdust 12 he follows.
  • processing curved sawing material 12 is advantageously the size of the section 26, 27, 27 ', 27' ', 27' "etc. so chosen that the major part of a single section 26, 27, 27 ', 27 '', 27 '' 'etc. lies flat on the conveyor belt 13.
  • the neighboring ones Sections become analogous in subsequent processing steps processed for the first processing step.
  • Cuts through saw blades adjacent to the zero line 32, for example 14 are set, as can be seen, for example, from FIG. 1, whereby for example, the outer edge 40 of the sawdust 12 is cut off.
  • the zero line 32 is flush with the edge 44 of the conveyor belt 13 positioned.
  • the material to be sawn 12 has a flat V-shaped cross section preferably fed such that the zero line 32 is near the transition of the two legs in the area or on the area of the heartwood 41 is adjacent.
  • the one lying outside the cutting area 17 Section 27 is made after the complete cut by a conveyor 50 picked up and transported.
  • the first section 26 After the first processing step - as shown in FIG. 1 - the first section 26, if completely tailored, can be removed via the removal device 28. If this section 26 is not completely tailored, it can together with the second section 27 via the conveyor 29 can be returned to the feed area 23. After that there are one or more processing steps corresponding to the first Processing step or as shown in Figure 4, for example.
  • a fixed setting 54 is provided, which by the outermost Saw blade 14 is formed and visualized by the cutting line 36 is. That or the neighboring arranged on the motor side Saw blades 14 are on the width of the clippings to be produced set. Sections 26, 27 are preferably cut line 36 so that the trimmed or untrimmed edge is cut off completely is cut and a variety of the finished strips or scantlings become.
  • the zero line is 32 with respect to an edge 44 of the conveyor belt 13 by a distance 46 shifted inwards.
  • This enables an area 47 of the Section 27 of the material to be sawn 12 between the conveyor belt 13 and the pressure roller 16 held and led out of the cutting area 17 becomes.
  • Support can be provided in the rear area in particular Device 11 a guide bar 51 for supporting and guiding the free Section 27 may be provided.
  • the further Pressure roller 16 or a separate roller have an area 52, which extends at least partially across the guide bar 50, to remove a section 27 from the guide bar 50 sure. The contact pressure is set so that no effects on the clippings in the cutting area.
  • the saw blades 14 are fixed on the shaft 18. Alternatively, it can also be provided that the saw blades 14 on the Shaft 18 movably provided between the individual processing steps are. The change in the distances is controlled by the control unit 21 the saw blades 14 are adjusted and recorded, so that by analogy for this purpose the light sources 31 for visualizing the zero line 32 and intersection line 33, 34, 36 can be adjusted accordingly.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Manufacture Of Wood Veneers (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
  • Sawing (AREA)
EP03015863A 2002-08-12 2003-07-11 Procédé et dispositif de traitement de découpes de bois massif Expired - Lifetime EP1389509B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10237360A DE10237360B4 (de) 2002-08-12 2002-08-12 Verfahren und Vorrichtung zur Herstellung von Leisten aus Massivholzzuschnitt
DE10237360 2002-08-12

Publications (3)

Publication Number Publication Date
EP1389509A2 true EP1389509A2 (fr) 2004-02-18
EP1389509A3 EP1389509A3 (fr) 2004-07-07
EP1389509B1 EP1389509B1 (fr) 2006-12-27

Family

ID=30469742

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03015863A Expired - Lifetime EP1389509B1 (fr) 2002-08-12 2003-07-11 Procédé et dispositif de traitement de découpes de bois massif

Country Status (3)

Country Link
EP (1) EP1389509B1 (fr)
AT (1) ATE349303T1 (fr)
DE (2) DE10237360B4 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1716997A1 (fr) * 2005-04-28 2006-11-02 Raimann Holzoptimierung GmbH & Co. KG Procédé de commande d'une machine avec scie circulaire longitudinale pour la fabrication de marches d'escalier
CN106696003A (zh) * 2016-12-29 2017-05-24 佛山市顺德区新马木工机械设备有限公司 修整木制家具用的平脚锯
CN113878639A (zh) * 2021-11-07 2022-01-04 广西桑海丝业有限公司 一种稳定高效桑条切断机

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE434812B (sv) * 1982-12-27 1984-08-20 Svenska Traeforskningsinst Forfarande for uppsagning i lengdriktningen av en stock
DE3839997C1 (en) * 1988-11-26 1990-05-10 Kuno 8300 Landshut De Neuhierl Panel-sizing saw
US5819622A (en) * 1996-10-15 1998-10-13 Quick; Bradley S. Automated infeed system
DE20108813U1 (de) * 2001-05-17 2001-08-23 Raimann Holzoptimierung GmbH & Co. KG, 79108 Freiburg Sägeguthandhabungsvorrichtung
US6405769B1 (en) * 2001-07-27 2002-06-18 Thom L. Labrie Material-recovery apparatus

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1716997A1 (fr) * 2005-04-28 2006-11-02 Raimann Holzoptimierung GmbH & Co. KG Procédé de commande d'une machine avec scie circulaire longitudinale pour la fabrication de marches d'escalier
CN106696003A (zh) * 2016-12-29 2017-05-24 佛山市顺德区新马木工机械设备有限公司 修整木制家具用的平脚锯
CN113878639A (zh) * 2021-11-07 2022-01-04 广西桑海丝业有限公司 一种稳定高效桑条切断机

Also Published As

Publication number Publication date
DE10237360A1 (de) 2004-03-11
ATE349303T1 (de) 2007-01-15
EP1389509A3 (fr) 2004-07-07
DE50306088D1 (de) 2007-02-08
DE10237360B4 (de) 2004-12-02
EP1389509B1 (fr) 2006-12-27

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