EP4177024A1 - Dispositif pour séparer un paquet de bois de sciage dans des produits principaux et latéraux - Google Patents

Dispositif pour séparer un paquet de bois de sciage dans des produits principaux et latéraux Download PDF

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Publication number
EP4177024A1
EP4177024A1 EP22202516.5A EP22202516A EP4177024A1 EP 4177024 A1 EP4177024 A1 EP 4177024A1 EP 22202516 A EP22202516 A EP 22202516A EP 4177024 A1 EP4177024 A1 EP 4177024A1
Authority
EP
European Patent Office
Prior art keywords
conical rollers
lumber
separating
bundle
plane
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.)
Pending
Application number
EP22202516.5A
Other languages
German (de)
English (en)
Inventor
Albert Haas
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.)
Gebr Linck Maschinenfabrik "gatterlinck" & Co Kg GmbH
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
Original Assignee
Gebr Linck Maschinenfabrik "gatterlinck" & Co Kg GmbH
Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik
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 Gebr Linck Maschinenfabrik "gatterlinck" & Co Kg GmbH, Gebrueder Linck GmbH and Co KG Gatterlinck Maschinen Fabrik filed Critical Gebr Linck Maschinenfabrik "gatterlinck" & Co Kg GmbH
Publication of EP4177024A1 publication Critical patent/EP4177024A1/fr
Pending 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
    • B27B31/00—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines
    • B27B31/08—Discharging equipment
    • 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
    • B27B31/003—Arrangements for conveying, loading, turning, adjusting, or discharging the log or timber, specially designed for saw mills or sawing machines with rollers
    • 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
    • B27L—REMOVING BARK OR VESTIGES OF BRANCHES; SPLITTING WOOD; MANUFACTURE OF VENEER, WOODEN STICKS, WOOD SHAVINGS, WOOD FIBRES OR WOOD POWDER
    • B27L5/00—Manufacture of veneer ; Preparatory processing therefor
    • B27L5/006—Cutting strips from a trunk or piece by a rotating tool
    • 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
    • B27B15/00—Band or strap sawing machines specially designed for length cutting of trunks
    • B27B15/02—Band or strap sawing machines specially designed for length cutting of trunks with horizontally-guided saw blade, i.e. horizontal log band saw

Definitions

  • the invention relates to a device according to the preamble of claim 1.
  • boards or similar products are typically obtained from logs that have a substantially circular cross-section.
  • said boards are made from both an inner and an outer cross-sectional area of the log.
  • the log is sawn along its longitudinal axis by means of a sawing device, whereupon the boards are spatially bound and present in the form of a sawn timber package.
  • the circular cross-section of the sawn log inevitably means that the boards obtained from the inner cross-section area have different dimensions than the boards that come from the outer cross-section area.
  • Those boards of the sawn timber package that are obtained from the internal cross-section area are referred to as main goods.
  • the boards from the outer cross-section area are referred to as sideboards. Both the main and side boards can be single or multiple.
  • the main product boards and the side product boards can be used for different purposes depending on their dimensions, they must be separated from one another.
  • the separating process required for this takes place in an efficient manner during the conveying movement of the bundle of lumber, with a device of the type mentioned at the outset being used.
  • Such a prior art device is out AT 17009 U1 known and is used to separate a sawn timber package into main and side boards.
  • the device comprises a serving as a separating wedge, which is positioned such that it in a feed movement of the package of lumber Saw gap between the main and the side board engages. As a result, the side board is rejected in a direction away from the main board.
  • the invention is based on the object of proposing a device with an improved separating means in order to increase the operational reliability of the device and to ensure consistently high productivity.
  • the device should have a simple technical structure for the purpose of high susceptibility to faults.
  • the device according to the invention is used for separating a sawn timber package obtained from a trunk through an incision into main material and side material during its longitudinal transport.
  • the device comprises at least one separating means, which is positioned in such a way that it engages in a sawing gap between the single or multi-stemmed main board and the side board during a feed movement of the lumber package and deflects the side board in a direction away from the main board.
  • the sideboard is arranged above and/or below the main product during the longitudinal transport of the lumber package.
  • At least two rotatably mounted conical rollers are provided as the separating means, each of which has a peripheral separating edge formed by two surfaces of rotation enclosing an acute angle.
  • the two conical rollers are arranged on both sides of the sawn timber package and are oriented in such a way that their respective separating edges engage laterally in the horizontally running saw gap and roll off the main board with their first rotational surface, while they deflect the side boards from the main board with their second rotational surface.
  • the invention is based on the knowledge that the conical rollers, due to their geometry and their rotatable mounting, enable a reliable separation of the main and side boards, while the bundle of lumber is transported further in its advance movement. If the bundle of timber hits the cone rollers during its feed movement, the separating edges of the cone rollers penetrate into the saw gap. As a result, the conical rollers can each be set in a rotary motion so that the main product can roll off the conical rollers and the sawn timber package is only slightly slowed down in its feed movement. This prevents jamming between the conical rollers designed as a separating means and the bundle of lumber. At the same time, the acute angle between the two surfaces of rotation of the respective conical rollers causes the side boards to be continuously diverted from the main boards during the further movement of the timber package.
  • the arrangement of two conical rollers according to the invention makes it possible to separate a lumber package, which was produced by horizontal cutting, in which the individual main and side boards are transported stacked one on top of the other, into main and side boards.
  • the invention enables the bottom side board or boards on which the main board or boards rest to be separated from the latter and transported further via a separate transport channel.
  • the main fabric in which the side fabric is arranged below the main fabric, can rest on the conical rollers, while the side fabric is ejected below the main fabric on the second rotational surfaces of the conical rollers and preferably with the aid of gravity, or via a separate guide channel below the main fabric in Transport direction is further promoted.
  • the conical rollers serve here simultaneously as bearing elements for the main product boards and as separating means for the side product board or boards.
  • the side board in which the side board is arranged above the main board, the side board can slide off the main board on the separating edge and corresponding to the acute angle enclosed by the rotational surfaces on the respective second rotational surface of the conical rollers and against the force of gravity.
  • the device can include additional guide means, in particular cylindrical rollers, in order to receive and further promote the sideboard.
  • the device preferably comprises at least four conical rollers.
  • a first pair of the four conical rollers is arranged on both sides of the timber package and oriented in such a way that the conical rollers of the first pair engage with their respective separating edges laterally in a first sawing gap, which is formed between the main board and a side board resting on the main board.
  • a second pair of the four conical rollers is arranged on both sides of the timber package and oriented in such a way that the conical rollers of the second pair engage with their respective separating edges laterally in a second sawing gap, which is formed between the main board and a side board arranged below the main board.
  • the invention is not limited to a specific geometry of the respective conical rollers, so that in principle different rotary bodies can be used. It is alone essential that the cone rollers are two Have surfaces of revolution, which enclose the acute angle at their common separating edge, which can be 45°, for example.
  • the tapered rollers can be made of metal, plastic, rubber or a combination of the materials mentioned.
  • the conical rollers preferably each have a bore for receiving one or more bearing means, in particular roller bearings.
  • the conical rollers can be mounted on a machine frame of the device according to the invention such that they can be rotated in a structurally simple manner and are stationary or movable.
  • Stationary storage is advantageous if the device according to the invention is used for separating lumber packages with uniform dimensions and the position of the sawing gap between the main product and the side panels does not vary appreciably between different lumber packages.
  • An adjustable bearing of the conical rollers is advantageous if the positions of their separating edges are to be adjusted depending on varying dimensions of the lumber package and the position of the saw gap.
  • At least the respective second surface of rotation of the conical rollers has a convex curvature in profile.
  • the pressure distribution in the corresponding conical roller can be optimized during the engagement of its separating edge in the sawing gap.
  • the separating edge in particular is relieved during the separating process.
  • the conical rollers each have a lateral surface and a flat base surface, with the respective lateral surface forming the first surface of revolution and the respective base surface forming the second surface of revolution.
  • the conical rollers are mounted in such a way that their respective lateral surfaces roll on the main fabric, while the side fabric is deflected on the side of the respective base surfaces.
  • the orientation of the conical rollers and their axis of rotation is not important here. It is essential that the separating edges of the conical rollers engage in the sawing gap of the lumber package.
  • the conical rollers are each mounted so that they can rotate about a rotation axis and are oriented in such a way that the respective rotation axis encloses an acute angle of inclination in a plane of inclination, which is directed orthogonally to the feed movement, with a plane of the sawing gap formed by the sawing gap and the main product at least partially on the respective separating edge and preferably on the respective lateral surface.
  • the angle of inclination is smaller than the acute angle enclosed by the lateral surface and the base surface.
  • the angle of inclination essentially corresponds to the acute angle enclosed by the lateral surface and the base surface.
  • the conical rollers are mounted in such a way that their lateral surfaces each roll along a line-like contact on the main fabric. Compared to the embodiment in which the main fabric rests on the separating edges, this results in increased friction. However, the separating edge can be mechanically relieved, since the weight of the main product is better distributed on the surfaces of the conical rollers.
  • the respective axis of rotation in the plane of the saw gap encloses an acute angle of incidence with the plane of inclination.
  • the base surfaces of the conical rollers point in the opposite direction to the feed movement of the timber pack and serve as a sliding plane for the sideboards to be rejected.
  • the reliability of the separating process is further improved. Because of the inclined position of the conical rollers, in each case the acute angle of attack described above (also: camber) is formed, the base surface faces in such a way against the feed movement of the lumber pack that the side board can be guided in a ramp-like manner over the flat base surfaces of the conical rollers from the main board.
  • the sliding planes formed in this way allow the side goods to be guided in a geometrically defined manner from the main goods.
  • the conical rollers each also have a lateral surface and a flat base surface, but the base surfaces each form the first surface of revolution and the lateral surfaces each form the second surface of revolution.
  • the conical rollers are mounted in such a way that the base surfaces roll off the main fabric, while the lateral surfaces serve to deflect the side fabric.
  • the conical rollers are preferably mounted in such a way that the base surfaces each run essentially parallel to the plane of the sawing gap formed by the sawing gap.
  • the axes of rotation of the conical rollers each run orthogonally to the plane of the saw gap mentioned above. If the separating edges penetrate into the sawing gap of the bundle of lumber with such an arrangement, the main product is in full contact with the base surfaces, while the side products are rejected on the side of the lateral surfaces.
  • the conical rollers whose base surfaces form the first surfaces of rotation and whose lateral surfaces form the second surfaces of rotation, are inclined in such a way that their axes of rotation are in a tilting plane, which is parallel to the feed movement and orthogonal to the plane of the saw gap, with the plane of the saw gap include an acute tilting angle.
  • the base surfaces here are turned in the feed direction.
  • the conical rollers are tilted with their respective axes of rotation counter to the feed direction, so that the base surfaces of the conical rollers do not rest over the entire surface on the main product during the separating process.
  • the respective base surfaces and the plane of the sawing gap formed by the sawing gap also enclose the tilting angle, which is open in the direction of the feed movement. This reduces the friction that prevails between the respective base surface and the main fabric.
  • the conical rollers each have a drive which is designed to cause the conical rollers to rotate about their respective axis of rotation.
  • the conical rollers have a tangential speed in the area of the separating edge that engages in the sawing gap, which is directed at least partially in or against the feed movement.
  • the development described above is based on the knowledge that the rotational movements of the conical rollers compared to the feed movement promote the reliability of the separating process. Due to the fact that the two conical rollers engage in the sawing gap of the lumber pack on opposite sides and are set in a counter-rotating movement, the forces acting laterally on the lumber pack are increased as a result of friction. As a result, the main goods and the side goods are better centered during the separating process.
  • the drive also ensures that the pivot bearings of the conical rollers do not get dirty over time and become stiff due to the dust and chips that inevitably occur during a sawing process, since the conical rollers are always in motion.
  • the drive mentioned above can easily comprise an electric machine. Furthermore, a gear and/or a clutch can be provided, in particular in order to be able to convert the drive movement of the electrical machine.
  • the drive is preferably designed to be controllable and connected to an electrical control unit of the device using signals.
  • the device has a centering unit which is arranged in front of the conical rollers with respect to the feed direction.
  • the centering unit is designed to align the bundle of lumber during the feed movement in relation to the separating means.
  • the centering unit can comprise one or more cylindrical rollers, by means of which the bundle of lumber is guided. These rollers are preferably driven and support the feed movement of the lumber package. Such a cylindrical roller is preferably mounted so that it can be adjusted that their displacement causes a corresponding displacement of the lumber package.
  • Such a centering unit preferably comprises at least one adjustment means, which is designed in a simple manner as an electric or hydraulic linear actuator.
  • the centering unit can be connected to the control unit of the device in terms of signals, with the adjustment being able to take place as a function of an expected dimension of the timber and/or an expected position of the sawing gap in the stack of timber.
  • a sensor in particular an optical sensor, is designed to measure the dimension of the timber and/or a saw gap position within the stack of timber.
  • a sensor is preferably arranged upstream of the centering unit with respect to the feed movement of the bundle of lumber and is designed as an optical sensor, in particular as a camera, by means of which the bundle of lumber is detected in a front area.
  • the optical sensor is preferably designed with an integrated evaluation unit or the control unit to determine the position of the sawing gap in the bundle of lumber using a method of digital image processing.
  • the control unit causes the centering unit to be adjusted depending on the measurement signal in order to adjust the sawn timber package with the saw gap to the position of the separating edge.
  • the device comprises a positioning device which is designed to displace and/or rotate the conical rollers in relation to at least one adjustment axis relative to the bundle of lumber.
  • the device comprises a positioning device which is designed to position the conical rollers in a plane orthogonal to the feed movement depending on a position of the saw gap in the timber package and to adjust the positions of the separating edges of the conical rollers to the position of the saw gap .
  • the positioning device can include at least one electric or hydraulic linear actuator, which is connected to the electric control unit in terms of signals.
  • the linear actuator serves to shift the cone rollers along a linear path.
  • the relocation can be in any direction in space and thus in or against the feed direction and/or transverse to it. It is also within the scope of the advantageous development that the positioning device is designed to adjust the angle of inclination and/or the angle of attack and/or the tilting angle of the respective conical roller before and/or during the separating process.
  • the positioning device it is possible by means of the positioning device to dynamically advance the conical rollers during the separating process and thereby positively influence the separating process. This is advantageous because in this way the path of movement of the rejected side board can be influenced or the side board can be lifted from the main board.
  • figure 1 shows a device 1 for separating a bundle of lumber 2.
  • the bundle of lumber 2 comes from a tree trunk with a substantially circular cross-section.
  • the tree trunk was processed in such a way that a single-stemmed beam was obtained from the inner cross-sectional area, which is referred to below as the main product 3 .
  • Those from the outer cross-sectional area of the tree trunk Boards obtained that lie on the top and bottom of the main board are referred to as side board 4.
  • side board 4 In the following, for a simpler understanding, only the side goods 4 arranged above the main goods 3 are referred to.
  • the main fabric 3 is separated from the side fabric 4 by a saw gap 5 .
  • the sawing gap 5 lies in a horizontally running sawing gap plane 6 shown as an aid.
  • the bundle of lumber 2 arrives at the device 1, which comprises four separating means designed as conical rollers 9.
  • the conical rollers 9 are arranged asymmetric to the sides of the bundle of lumber 2 with respect to the feed direction 7 .
  • not all conical rollers 9 are provided with reference numbers.
  • the conical rollers 9 are each designed in the shape of a truncated cone and each have an axis of rotation 10 about which they are mounted to rotate freely. Furthermore, the conical rollers 9 each have a base surface 11 and a lateral surface 12 which enclose an acute angle of approximately 45° and are delimited by a peripheral separating edge 13 .
  • the conical rollers 9 are solid and made of steel and have a correspondingly high mechanical rigidity. During the advance movement of the bundle of lumber 2, the conical rollers serve to separate the side panels 4 from the main panel 3. For this purpose, a conical roller 9 penetrates with its peripheral separating edge 13 into the sawing gap 5 of the bundle of lumber 2.
  • the side board 4 slides transversely to the feed direction 7 on the base surfaces 10 of the conical rollers 9, while the main board 3 rolls on the lateral surfaces 12 and further in Feed direction 7 is funded.
  • the positions and orientations of the conical rollers 9 relative to the lumber package 2 are based on the Figures 2 to 4 explained in detail.
  • figure 2 shows the in figure 1 device 1 shown in front view. How regarding figure 1 has already been described, the conical rollers 9 each have a lateral surface 12 and a peripheral separating edge 13 . In figure 2 the base surfaces of the conical rollers 9 shown are turned into the image plane and are therefore not visible.
  • the feed movement of the lumber package 2 takes place along the feed direction 7, which according to figure 2 is directed out of the image plane and is oriented orthogonally to a tilt plane 14 that has been drawn in as an aid.
  • the conical rollers 9 are inclined with their respective axes of rotation 10 and enclose an acute angle of inclination 15 in the plane of inclination 14 with the plane 6 of the saw gap.
  • the angle of inclination 15 is selected as a function of the geometry of the conical rollers 9 and corresponds to the acute angle between the base surface and the lateral surface 12 of the conical rollers 9. This means that the main product 3 rests or rests along a profile line of the lateral surfaces 12 during the separating process and rolls over this to the cone rollers 9.
  • the angle of inclination can be set smaller, so that the main fabric 3 rolls off in each case via point contact on the separating edges 13 of the conical rollers 9 .
  • figure 3 shows the in the figures 1 and 2 shown device 1 in plan view.
  • the visible base surfaces 11 of the conical rollers 9 point out of the plane of the drawing, which runs parallel to the plane 6 of the sawing gap.
  • the conical rollers 9 are also mounted in such a way that their respective axes of rotation 10 in the plane of the saw gap 6 with the plane of inclination 14 enclose an acute angle of attack 16 (also: camber).
  • This arrangement means that the base surfaces 11 of the conical rollers 9 are turned counter to the feed direction 7 in accordance with the angle of attack 16 .
  • the base surfaces 11 for the side board 3 each form a sliding plane on which the side board 3 slides off the main board 4 .
  • figure 4 shows the in the Figures 1 to 3 device 1 shown in side view. How based on figure 4 can be seen, the conical rollers 9 are stored in such a way that their axes of rotation 10 in the image plane, which runs parallel to the tilting plane 17 shown as an alternative, and with the tilting plane 14 enclose an acute tilting angle 18 .
  • Conical rollers 9 shown are mounted adjustably, not shown.
  • the device 1 has a total of four positioning devices, one of which is in the Figures 5 to 8 shown in different views.
  • FIG 5 shows a positioning device 19 with a holder 20 on which a conical roller 9 is freely rotatably mounted.
  • the conical roller 9 has a bore along its axis of rotation 10 , in which roller bearings are accommodated, which allow free rotation of the conical roller 9 relative to the holder 20 and about the axis of rotation 10 .
  • a drive for the conical roller 9 can be arranged on the holder 20 in order to force it to rotate.
  • the positioning device 19 also has a fastening element 21, which serves to fix the positioning device 19 in a stationary manner, for example on a machine frame.
  • the holder 20 is mounted in an adjustable manner relative to the fastening element 21 by means of a guide 22 .
  • a hydraulic linear actuator 23 is arranged between the holder 20 and the fastening element 21 .
  • the linear actuator 23 has an adjustment axis which corresponds to the guide axis of the guide 22 .
  • the positioning device 19 with the conical roller 9 arranged thereon is used in devices which are used for separating sawn wood chips with widely varying dimensions. Because by adjusting the conical roller 9, its separating edge 13 is also adjusted and can thus be adapted to the position of a saw gap in a bundle of lumber.
  • figure 6 shows the in figure 5 Positioning device 19 shown in front view.
  • the feed direction 7 of a package of lumber to be separated points into the plane of the drawing.
  • the conical roller 9 is inclined in such a way that the axis of rotation 10 encloses an acute angle of inclination 15 in the image plane with the saw gap plane 6 shown here.
  • the lower profile line on the lateral surface 12 of the conical roller 8 runs essentially horizontally and thus parallel to the plane of the saw gap (not shown).
  • the separating edge 13 penetrates the saw gap of the bundle of lumber in the manner already explained, with the conical roller 9 rolling on the main product in the region of the horizontal profile line.
  • the side fabric slides over the base surface 11 and is directed transversely to the feed direction 7 from the main fabric.
  • figure 7 shows the in the figures 5 and 6 Positioning device 19 shown in plan view.
  • the feed direction 7 of a bundle of lumber is shown again.
  • the conical roller 9 is tilted in such a way that its axis of rotation 10 in the plane of the drawing encloses an acute angle of attack 16 (also: camber) with the plane of inclination 14 shown here as an aid.
  • figure 8 shows the in the Figures 5 to 7 positioning device 19 shown in a side view.
  • the cone roller 8 is inclined in such a way that its axis of rotation 10 is in the plane of the drawing with the plane of inclination 14, as in relation to FIG figure 4 already explained, includes an acute tilt angle 17 .
  • figure 9 shows the device 1 according to FIG Figures 1 to 4 ,
  • the four conical rollers 9 each on a positioning device 19 corresponding to the Figures 5 to 8 are stored.
  • only one positioning device 19 and the components arranged therein are provided with reference symbols.
  • a camera system determines the structure and geometry of the lumber package 2 before the separating step and transmits the data obtained in the process to an evaluation and control unit.
  • the recorded information contains both the external dimensions of the bundle of lumber and the position as well as the dimensions and the course of the saw gap 6 within the bundle of lumber 2.
  • This information is used in the evaluation and control unit to control the linear actuators 23 in order to position the conical rollers 9 in such a way to adjust that their respective separating edges are adapted to the position of the saw gap 5.
  • the dimensions of the bundle of lumber and the position of the saw cuts can also be obtained from a cutting solution obtained by calculation based on an optical measurement of the tree trunk and/or a resulting adjustment of the preceding sawing device.
  • the conveyor device can also include a centering unit, which is designed to adjust the bundle of lumber 2 in the plane of inclination 14 (not shown here) and to adjust the position of the saw gap 5 to the positions of the separating edges of the conical rollers 9.
  • a centering unit which is designed to adjust the bundle of lumber 2 in the plane of inclination 14 (not shown here) and to adjust the position of the saw gap 5 to the positions of the separating edges of the conical rollers 9.
  • figure 10 shows a device 1, which has the same components as in figure 9 device 1 shown has.
  • the positioning devices 19, which are arranged in pairs above or below the bundle of lumber 2 are mounted in a horizontally adjustable manner on a horizontally extending guide 24.
  • one hydraulic linear actuator 25 is provided for displacing one of the positioning devices 19 and the conical rollers 9 mounted thereon along the guide 24 .
  • the conical rollers 9 and the positions of their respective separating edges 13 can be adapted not only to a vertical position of the saw gap 5, but also to a width dimension of the lumber pack 2 .
  • figure 11 shows that in figure 10 embodiment shown in a rear view.
  • FIGS figures 10 and 11 show a second exemplary embodiment of a device 1 for separating a bundle of lumber 2 obtained from a trunk.
  • This has essentially the same structure as that in FIGS figures 10 and 11 shown device 1, but differs from this in the installation position of the conical rollers 9.
  • the axes of rotation of the conical rollers 9 run orthogonally through the saw gap plane 6.
  • figure 13 shows the in figure 12 Device 1 shown with one of the four conical rollers 9.
  • the axis of rotation 10 of the conical roller 9 runs orthogonally to the plane of the saw gap 6.
  • the base surface of the conical roller 9 lies flat on the main fabric 3, while the side fabric 4 over the lateral surface 12 is rejected by the main goods 3.
  • the axis of rotation 10 can be tilted by a tilting angle in the image plane, so that the base surface does not rest on the main fabric over its entire surface. Instead, the base surface encloses an acute angle with the plane of the saw gap, which angle corresponds to the tilting angle and is open in the feed direction 7 .
  • Section BB corresponds to the illustration in figure 14
  • section CC corresponds to the representation in figure 15 .
  • the storage of the conical rollers 9 is shown.
  • the conical rollers each have a bore in which roller bearings 26 are accommodated.
  • the roller bearings serve to mount the conical rollers 9 so that they can rotate freely, with the axes of rotation 10 running orthogonally to the plane 6 of the sawing gap.
  • figure 16 shows one of the in the Figures 10 to 15 shown positioning devices.
  • the positioning device 19 is essentially identical to the positioning device according to FIG figure 5 built up.
  • the conical roller 9 shown is arranged in such a way that the base surface of the holder 9 faces away and faces the main goods in a built-in solution provided during the separating process.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Attitude Control For Articles On Conveyors (AREA)
  • Rollers For Roller Conveyors For Transfer (AREA)
  • Debarking, Splitting, And Disintegration Of Timber (AREA)
EP22202516.5A 2021-11-08 2022-10-19 Dispositif pour séparer un paquet de bois de sciage dans des produits principaux et latéraux Pending EP4177024A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102021128977.7A DE102021128977A1 (de) 2021-11-08 2021-11-08 Vorrichtung zum Separieren eines Schnittholzpaketes in Haupt- und Seitenware

Publications (1)

Publication Number Publication Date
EP4177024A1 true EP4177024A1 (fr) 2023-05-10

Family

ID=84331941

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Application Number Title Priority Date Filing Date
EP22202516.5A Pending EP4177024A1 (fr) 2021-11-08 2022-10-19 Dispositif pour séparer un paquet de bois de sciage dans des produits principaux et latéraux

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Country Link
US (1) US20230146108A1 (fr)
EP (1) EP4177024A1 (fr)
JP (1) JP2023075042A (fr)
CA (1) CA3181135A1 (fr)
DE (1) DE102021128977A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102022132324A1 (de) 2022-12-06 2024-06-06 Gebrüder Linck, Maschinenfabrik "Gatterlinck" GmbH & Co. KG Verfahren und Sägewerksvorrichtung zum Herstellen von Schnittholz aus einem Baumstamm

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3313329A (en) * 1965-11-10 1967-04-11 Runnion Ernest E Production of stud lumber from logs of small diameter
US3401785A (en) 1967-01-30 1968-09-17 Arthur M. Ferrari Separator unit for lumber strips
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AT17009U1 (fr) 2020-01-31 2021-02-15 Leitinger Hans Peter

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US3313329A (en) * 1965-11-10 1967-04-11 Runnion Ernest E Production of stud lumber from logs of small diameter
US3401785A (en) 1967-01-30 1968-09-17 Arthur M. Ferrari Separator unit for lumber strips
DE3030602A1 (de) * 1980-08-13 1982-02-18 Maschinenfabrik Esterer AG, 8262 Altötting Vorrichtung zum trennen der seitenware von der hauptware bei nachschnittkreissaegen mit festem blatteinhang
AT17009U1 (fr) 2020-01-31 2021-02-15 Leitinger Hans Peter

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DE102021128977A1 (de) 2023-05-11

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