EP4008507A1 - Méthode pour scier au moins une pièce - Google Patents

Méthode pour scier au moins une pièce Download PDF

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Publication number
EP4008507A1
EP4008507A1 EP20211541.6A EP20211541A EP4008507A1 EP 4008507 A1 EP4008507 A1 EP 4008507A1 EP 20211541 A EP20211541 A EP 20211541A EP 4008507 A1 EP4008507 A1 EP 4008507A1
Authority
EP
European Patent Office
Prior art keywords
workpiece
line
cutting
sawing
along
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
EP20211541.6A
Other languages
German (de)
English (en)
Inventor
Wolfgang Pöschl
Alexander Walch
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.)
IMA Schelling Austria GmbH
Original Assignee
IMA Schelling Austria 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 IMA Schelling Austria GmbH filed Critical IMA Schelling Austria GmbH
Priority to EP20211541.6A priority Critical patent/EP4008507A1/fr
Publication of EP4008507A1 publication Critical patent/EP4008507A1/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
    • 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
    • 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
    • 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
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
    • 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
    • B27B5/06—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels
    • B27B5/065—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage
    • B27B5/075—Sawing machines working with circular or cylindrical saw blades; Components or equipment therefor characterised by a special purpose only for dividing plates in parts of determined size, e.g. panels with feedable saw blades, e.g. arranged on a carriage characterised by having a plurality of saw blades, e.g. turning about perpendicular axes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B27—WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27M—WORKING OF WOOD NOT PROVIDED FOR IN SUBCLASSES B27B - B27L; MANUFACTURE OF SPECIFIC WOODEN ARTICLES
    • B27M1/00—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching
    • B27M1/08—Working of wood not provided for in subclasses B27B - B27L, e.g. by stretching by multi-step processes

Definitions

  • the present invention relates to a method according to the preamble of patent claim 1.
  • the workpieces to be sawn usually have to be trimmed at their edges, since the outer edges of the original raw panels are often damaged and are usually never sufficiently straight and clean.
  • the object of the invention is now to optimize generic methods in such a way that the division of the workpieces into workpiece strips and then into workpiece parts takes place as quickly and efficiently as possible.
  • the invention proposes a method according to patent claim 1 for this purpose.
  • the workpiece is trimmed along at least one hem line of the cutting plan running parallel to the second cutting line(s) using a trimming tool of the panel dividing system before the workpiece is sawed along the first cutting line or the first of the first cutting lines.
  • the cutting plan can have a single first cutting line or a plurality of first cutting lines parallel to one another.
  • the formulation first cutting line(s) includes both possibilities; in this case one could also speak of the at least one first cutting line. When speaking of all first cutting lines, this is precisely this single first cutting line if the cutting plan has only one single first cutting line. If the cutting plan has several first cutting lines, these are all first cutting lines.
  • the first cutting line(s) is or are preferably straight or, in other words, linear over their respective total extent. The same applies to the second cutting lines.
  • the workpiece on which the method according to the invention is carried out can be a previously unprocessed raw panel or a stack of such previously unprocessed raw panels, such as are commercially available.
  • the workpiece can also be a panel or a stack of panels on which processing steps have already been carried out in advance using the panel dividing system or another tool or another machine.
  • the work piece can also be panels or stacks of panels from which parts of the raw panel or stack of raw panels have already been cut off in advance, e.g. Examples of this are described in detail below.
  • the trimming of the workpiece according to the invention would then be carried out along the at least one hem line running parallel to the second cutting line or lines by means of the trimming tool before the first method section.
  • the panel dividing system with which the method according to the invention is carried out has a workpiece support table on which the workpiece, the workpiece strips and also the workpiece parts lie and are transported while the various steps of the method are carried out .
  • known feed devices of the panel dividing system are used to transport the workpiece as well as the workpiece strips and the workpiece parts.
  • these feed devices can have grippers with which they can grip the workpieces, the workpiece strips or the workpiece parts in order to transport or move them on the workpiece support table.
  • rotating devices known per se can also be used in the method according to the invention, with which the workpiece or the workpiece strips or the workpiece parts can be rotated in order to align them accordingly for a subsequent sawing process or other processing process. This is also known per se. Subsequent to the sawing of the workpiece strips into the workpiece parts along the second cutting line or the second cutting lines, the so The workpiece parts produced are either already in the required end format or can be further divided. As is known per se, third cuts, fourth cuts, etc. can also be carried out on the workpiece parts, as will also be explained in more detail below by way of example.
  • Preferred embodiments of the invention provide that a seam to be separated from the workpiece during trimming is completely comminuted into dust and/or chips by the trimming tool during trimming. With these variants, no waste strips are produced during trimming that then have to be disposed of. It is rather the case that the entire hem is comminuted to such an extent during trimming that it is present as dust and/or shavings and can be sucked off if necessary.
  • a waste strip is separated from the workpiece during trimming by means of the trimming tool and this waste strip is fed to a waste disposal device of the panel dividing system. But even then, the waste strip is a residue or waste that is disposed of.
  • Corresponding waste disposal devices can have corresponding shredders or other shredding devices known per se, with which the strip of waste is then further shredded. In any case, material separated from the workpiece during trimming is always waste, which is disposed of. Waste strips separated from the workpiece during trimming are therefore never sawed into any format that can be reused.
  • the trimming tool can be a milling cutter or the like.
  • a trimming saw is used as the trimming tool for the panel sizing system. It can be a circular saw, for example.
  • the cutting width of the trimming saw is advantageously greater than the maximum width of the hem to be cut off.
  • the trimming saw has a smaller cutting width, at least in some areas, than the hem to be separated from the workpiece.
  • Preferred variants provide that the workpiece is trimmed by the trimming tool along the hem line on the way to the sawing line. Provision is particularly preferably made for the workpiece to be transported in a direction orthogonal to the sawing line on the way to the sawing line. In this context, it is also advantageous if the trimming tool is arranged at a distance from the sawing line along which the separating saw can be moved, with which the workpiece is sawed along the first cutting line(s).
  • the trimming tool can be stationary. In such cases, the workpiece is pushed along the trimming tool by a feed device on the way to the saw line, for example, and trimmed along the hem line. In other configurations, however, the workpiece can also be held stationary during the trimming process. In this case, the trimming tool is then moved along the workpiece. Both variants are explained in more detail below in the description of the figures.
  • the inventive method can be based on a wide variety Panel dividing systems are carried out. It is possible, for example, to carry out the method according to the invention on a panel dividing system which has only a single cutting saw that can be moved along a single sawing line.
  • the method according to the invention advantageously provides that the sawing of the workpiece along the first cutting line(s) is carried out with the same separating saw that can be moved along the sawing line as the workpiece strips are sawed along the second cutting line(s), and the workpiece strips before the sawing along the second cutting line(s) by means of a return device of the panel dividing system from an area behind the sawing line to an area in front of the sawing line.
  • the return of workpiece strips or workpiece parts from an area behind a sawing line to an area in front of a sawing line by means of a return device is known per se in the prior art, for example from the document mentioned at the outset.
  • Such return devices may include powered roller tables, conveyor belts, feed devices with grippers, or the like.
  • Rotating devices for rotating the workpiece strips and/or workpiece parts can also be integrated into such return devices.
  • Such rotary devices are also known per se.
  • the return devices can be designed in such a way that they return the workpiece strips laterally around the sawing line from the area behind the sawing line to the area in front of the sawing line.
  • the return devices can also include lifting devices such as robot arms, gantry cranes or the like or be formed from them. In such configurations, it is then possible to move the workpiece strips across the sawing line from the area behind the sawing line to the area in front of the sawing line to lift.
  • Such return devices are also known per se in a wide variety of configurations
  • methods according to the invention can also be carried out on panel dividing systems in which two or more cutting saws can be moved along a sawing line at a distance from one another. If the method according to the invention is implemented on such panel dividing systems, it can be provided, for example, that the workpiece is sawed along the first cutting line(s) with the dividing saw of the panel dividing system that can be moved along the saw line, and the workpiece strips are cut along the second cutting line(s) with another one along it another sawing line, moveable, cut-off saw of the panel dividing plant.
  • the respective dividing saw can be moved along the respective sawing line with a saw carriage.
  • the cutting saw can have a rotating circular saw blade. This can be preceded by a scoring saw blade.
  • the cut-off saw or the saw blade can be lowered in the saw carriage and raised above the respective support plane of the workpiece support table in the area of the saw line.
  • the sawing lines are preferably linear or straight in each case.
  • At least one pressure bar or at least another pressing device with which the workpiece, the workpiece strips or the workpiece parts can be pressed onto the workpiece support table in the area of the sawing line during the sawing process.
  • the As is known per se, cutting saws and/or pressure beams can be assigned appropriate suction devices for sucking off chips and/or dust. This is also known per se.
  • Particularly preferred variants of the method according to the invention provide that the workpiece strips for sawing are transported along the second cutting line(s) with their already trimmed end in front to the sawing line or to the further sawing line.
  • This has the advantage that at least one workpiece part is produced along a second cutting line during each sawing process. In terms of speed, this is a significant difference compared to the prior art, since there a trimming process must generally be carried out at least once on each workpiece strip before workpiece parts that can be used further can be produced from the workpiece strip by corresponding sawing processes along the second cutting lines.
  • the workpiece strips are positioned very precisely along the first second cutting line or lines before the first sawing process is carried out can become.
  • preferred embodiments of the method provide that the positions of the ends of the workpiece strips pointing to the sawing line or to the further sawing line are determined by means of a position determination device of the panel dividing system before the workpiece strips are sawn into the workpiece parts along the second cutting line(s).
  • the panel sizing system knows then very precisely where the end of the workpiece strip pointing to the sawing line or to the further sawing line is located, so that the workpiece strip can then be aligned over the sawing line or the further sawing line by means of a correspondingly precisely calculated feed so that the second cut provided in the cutting plan is exact is carried out at the point where it is also intended according to the cutting plan.
  • the position determination device is advantageously integrated into the workpiece support table in the area in front of the respective sawing line or the further sawing line. It can be designed differently. Provision can be made, for example, for at least one mechanical measuring sensor of the panel dividing system or at least one optical measuring system of the panel dividing system to be used as the position determination device.
  • a mechanical probe can be, for example, at least one body, such as a button or a finger, which is deflected when the end of the workpiece strip pointing towards the saw line hits it.
  • Such mechanical probes can be integrated into the workpiece support table, for example, or they can also be arranged above it.
  • light barriers or cameras with appropriate image recognition or the like come into consideration as optical measuring systems.
  • the position determination device can also be a stop of the panel dividing system. In this case, the end of the workpiece strip pointing to the sawing line or to the further sawing line is moved against this stop in order to precisely determine its position.
  • the stop can then be removed accordingly, for example by lowering or raising, so that the workpiece strip can then be transported further in the direction of the sawing line or in the direction of another sawing line.
  • the workpiece strips are moved further when determining the position of the ends of the workpiece strips pointing to the sawing line or to the further sawing line. Measurement errors and signal propagation times that may have to be taken into account, as well as signal processing times, can be taken into account when determining the position and, if necessary, included as correction factors.
  • FIG. 1 a top view of a workpiece 1 in the form of a previously unmachined raw panel 31.
  • the cutting plan 2 is shown projected onto the workpiece 1 . It shows the first cut lines 6 and the second cut lines 7, but also the other hem lines 28 and, for example, also third cut lines 29 and a fourth cut line 30. Sawing along the first cut lines 6 creates the workpiece strips 8. These are then cut by sawing along the second cut lines 7 sawed into the workpiece parts 9.
  • the sawing or trimming processes are carried out one after the other along a front other hem line 28 parallel to the first cutting lines 6, along the first cutting lines 6 and then a rear other hem line 28 parallel to the first cutting lines 6 worked off as known per se.
  • the situation is then in accordance with the state of the art 2 before, in which the individual workpiece strips 8 are already separated from one another and the other hems 55 are also already separated by the trimming processes along the other hem lines 28 parallel to the first cut lines 6.
  • the trimming process is carried out along the hem line 10 before the workpiece 1 is sawed along the first cutting lines 6 .
  • a hem 12 is severed in one step on one side of all the workpiece strips 8 that are produced later. Only then is the workpiece 1 sawed along the first cutting lines 6 into the workpiece strips 8.
  • 4 shows the state in which the hem 12 has already been severed along the hem line 10 and then the workpiece 1 has been sawn into the workpiece strips 8 along the first cutting lines 6 and the other hem lines 28 parallel thereto, with the other hems 55 already having been severed.
  • the remaining workpiece 1 according to 7 is now sawed further according to the invention.
  • the hem 12 is first severed along the hem line 10 running parallel to the second cutting lines 7 before the workpiece 1 is then further sawed along the first cutting lines 6 into the workpiece strips 8 .
  • 8 shows the state after the trimming process has been carried out along the hem line 10 and the subsequent sawing processes along the first cut lines 6 and the trimming process along the other hem line 28 running parallel to the first cut lines 6.
  • the procedure according to the invention ensures that each workpiece strip 8 already has at least one end 23 or 27, which is already finished trimmed and is therefore no longer trimmed along the second cutting lines 7 together with the implementation of the sawing processes got to.
  • FIG. 9 now shows a highly schematic plan view, obliquely from above, of a first exemplary embodiment of a panel dividing system 5 with which the method according to the invention can be carried out.
  • This is a panel dividing system 5 with only a single sawing line 3 along which a cutting saw 4 can be moved in order to carry out the sawing processes along the first cutting lines 6 and the second cutting lines 7 and the other hem lines 28 .
  • the sawing station 38 is shown in a roughly schematic manner. Their essential components are explained below with the help of 10 explained in more detail.
  • the sawing station 38 contains the sawing line 3 running orthogonally to the direction 20 and the cutting saw 4 which can be moved along this sawing line 3.
  • the panel dividing system 5 has, as is known per se, a workpiece support table 35 which extends both in an area 16 in front of the sawing line 3 or the sawing station 38 and also in an area 17 behind the sawing line 3 or the sawing station 38 .
  • a known feed device 36 which with its known grippers 37 grips the workpiece 1, but also the workpiece strips 8 and the workpiece parts 9 and rests on the workpiece support table 35 to the sawing line 3 and over push the sawing line 3 away in direction 20, but can also pull it back again in the opposite direction to 20.
  • area 16 i.e.
  • the panel dividing system 5 has the trimming station 42, with which the trimming process can be carried out on the workpiece 1 along the hem line 10 according to the invention, before the workpiece 1 is cut along the first cutting lines 6 by means of the cutting saw 4 is sawed up.
  • the structure of the trimming station 42 of this Embodiment is based on the 10 and 11 explained in detail below.
  • the workpieces 1 can be fed into the working area of the feed device 36 by means that are known per se and are not shown here.
  • a rotary device 54 which is known per se and is indicated here only by dashed lines, can also be integrated into the workpiece support table 35.
  • This rotating device 54 which is known per se, can be used to rotate raw panels 31, workpieces 1, workpiece strips 8, as well as workpiece parts 9 or other formats resulting from them, about a vertical axis before they are fed to the sawing line 3 to carry out sawing processes, as far as this is necessary.
  • robots, gantry cranes or the like not shown here, arranged above the workpiece support table 35 could also be arranged with corresponding rotating devices in order to rotate the components mentioned before they are fed to the sawing line 3.
  • the panel dividing system 5 has a position-determining device 22 in the form of a stop 26 .
  • This stop 26 can, as in 9 shown, are extended over the support plane 21 of the workpiece support table 35, so that workpiece strips 8 can be driven against this stop 26 to determine the position, as explained further below.
  • the stop 26 can also be lowered below the support plane 21 of the workpiece support table 35 so that the workpiece strips 8 can then be moved over it.
  • Waste disposal 39 can be used to remove and dispose of waste pieces produced during sawing processes with the cutting saw 4, such as the other seams 55 and 56, but also waste produced during the sawing processes along third cutting lines 29 or fourth cutting lines 30, from the material flow immediately after the sawing line 3.
  • the workpiece strips 8 or workpiece parts 9 or other formats that accumulate there can be fed by the robot 40 either to the discharge area 41 or to the return device 15, depending on whether they are further processed have to be or already represent a desired final format. If necessary, the robot 40 can also rotate these formats about a vertical axis.
  • gripping devices for such robots 40 are known which can grip, lift, transport and set down as well as rotate not only a single plate but also a stack of plates.
  • rotating devices 54 or other conveying devices that can carry out a sorting function could also be built into the workpiece support table 35 in the area 17.
  • the transport, sorting and possibly also the turning function of the robot 40 could also be performed by a corresponding gantry crane behind the sawing station 38 .
  • the return device 15 is always used when workpiece strips 8, workpiece parts 9 or other formats from area 17 behind sawing line 3 have to be transported back to area 16 before sawing line 3 for further processing.
  • the return device 15 can be a conveying device leading around the sawing line 3 or sawing station 38, possibly with corresponding rotating devices.
  • corresponding robots or gantry cranes could of course also be used to lift the workpiece strips 8, workpiece parts 9 or other formats to be returned over the sawing station 38 or the sawing line 3 from the area 17 to the area 16 .
  • the 10 and 11 now show further details of the panel dividing system 5 according to FIG 9 in area 16, particularly in the area of trimming station 42, and in the area of sawing station 38.
  • 10 shows a schematic longitudinal section parallel to direction 20.
  • 11 shows a schematic cross-section orthogonal to direction 20.
  • the saw carriage 48 can be seen, in which the cut-off saw 4, designed here as a circular saw blade, is mounted.
  • the cut-off saw 4 can be raised and lowered in the saw carriage 48 so that it protrudes beyond the support plane 21 of the workpiece support table 35 for sawing and, if necessary, can also be lowered below this support plane 21 .
  • a scoring saw blade which is not shown here but is known per se, can be arranged in front of the cutting saw 4 .
  • the cut-off saw 4 is possibly together with the scoring saw blade with the saw carriage 48 along the sawing line 3, as is known per se.
  • the sawing line 3 is in accordance with the illustration 10 normal at the leaf level.
  • Above the sawing line 3 in the sawing station 38 is a pressure beam 43 which, as is known, is used to press the workpieces 1, workpiece strips 8 or workpiece parts 9 or other formats to be sawn onto the workpiece support table 35 during the sawing process. Dust and shavings produced during the sawing processes can be disposed of by appropriate suction devices, as is known per se in the prior art, without this being shown separately here.
  • the workpiece support table 35 realized here has a sequence of rollers 45 on which the workpieces 1, workpiece strips 8, workpiece parts 9 and other formats can be shifted with little friction.
  • known air cushions, bristles or the like could also be used to implement a support plane 21 of the workpiece support table 35 that is as low-friction as possible.
  • the trimming station 42 is stationary.
  • the trimming tool 11 arranged in this trimming station 42 is a circular saw blade in this exemplary embodiment.
  • a milling head or the like could also be used as the trimming tool 11 .
  • a scorer saw blade 44 known per se is arranged in front of the trimming tool 11 in order to ensure the cleanest possible edge during the trimming process.
  • the workpiece to be trimmed 1 by means of the in 10 Drawn rails 49 movable feed device 36 pushed past the stationary running trimming station 42 in order to realize the trimming process.
  • the trimming tool 11 has a cutting width which is greater than the width of the hem 12 to be cut off during the trimming process. This ensures that the seam 12 to be separated from the workpiece 1 is completely comminuted into dust and/or chips by the trimming tool 11 during trimming and can therefore be completely sucked off. In this exemplary embodiment, no waste strips or the like have to be disposed of.
  • the direction of rotation of the saw blade used as the trimming tool 11 can be selected such that the workpiece 1 is pressed onto the workpiece support table 35 by the trimming tool 11 itself during trimming.
  • other means can also be used in order to press the workpiece 1 onto the workpiece support table 35 during the trimming process.
  • these can be skids or rollers, preferably arranged on the cover hood 46 .
  • the in 3 Workpiece 1 shown be it a single plate or a stack of plates, by known here but not shown means placed on the support plane 21 of the workpiece support table 35 and specifically in front of the trimming station 42.
  • the workpiece 1 is pushed past the trimming station 42 and thus the scoring saw blade 44 and the trimming tool 11 .
  • the hem 12 is severed along the hem line 10 running parallel to the second cutting lines 7 before the workpiece 1 is sawed along the first cutting lines 6 .
  • the hem 12 is, as in 11 illustrated, completely reduced to dust and/or shavings.
  • the sawing processes along the first cutting lines 6 and the other hem lines 28 parallel thereto are then carried out in a manner known per se by means of the cutting saw 4 .
  • the workpiece 1 is always pushed far enough over the saw line 3 by the feed device in a manner known per se that the respective first cut line 6 or other hem line 28 to be sawn is positioned exactly for the sawing process on the saw line 3.
  • the other seams 55 occurring during this process are disposed of in waste disposal 39 .
  • the workpiece strips 8 resulting from the sawing processes along the first cutting lines 6 are rotated as far as necessary from the area 17 behind the sawing line 3 by the robot 40 and transported back to the area 16 in front of the sawing line by the return device 15.
  • the workpiece strips 8 are favorably positioned as in 18 shown, aligned so that they point to the saw line 3 with their already trimmed ends 23 and 27 respectively.
  • This has the advantage that with each of the sawing processes now to be carried out along the Second cutting lines 7 in each case a workpiece part 9 arises.
  • the workpiece strips 8 are again gripped by the feed device 36 by means of their grippers 37 . According to the arrangement 18 This gripping then takes place in the area of the other seams 56.
  • the feed device 36 then pushes the respective workpiece strip 8 back in direction 20 towards the saw line 3.
  • the front, already trimmed end 23 or 27 strikes the position determination device 22 designed as a stop 26 , so that at this moment the position of the front end 23 or 27 of the workpiece strip 8 is determined very precisely. With this procedure, the workpiece strip 8 is thus stopped in order to determine the position of the ends 23 pointing to the sawing line 3 .
  • the workpiece strip can be positioned very precisely by the feed device 36 by further feed in direction 20 and in such a way that the second cutting line 7 to be sawed next is exactly above the sawing line 3 comes to rest and so the sawing process along the second cutting lines 7 can be carried out very precisely.
  • the workpiece parts 9 produced by sawing the workpiece strips 8 along the second cutting lines 7 can then be fed to the discharge area 41 in the area 17 behind the sawing line 3 by the robot 40 when they have reached their final format. If third cuts have to be sawn along the third cutting lines 29 on individual workpiece parts 9, these workpiece parts 9 are placed back onto the return device 15 by the robot 40, if necessary after appropriate rotation, and are then returned to the area 16, which is then followed in itself the third cuts along the third cutting lines 29 can be carried out in a known manner. If fourth cuts are then still necessary along the fourth cut lines 30, the procedure is again the same as for the third cuts.
  • the raw board 31 or the stack of raw boards 31 is first inserted in the area 16 and gripped by the feed device 36 with its grippers 17 .
  • the trimming process along the other trimming line 28 is then initially stopped at the trimming station 42 figure 5 carried out.
  • the head cut along the head cutting line 32 is then made on the sawing line 3 by means of the cutting saw 4 figure 5 carried out.
  • the rest of the hem 34 is in the panel dividing system according to Figures 9 to 11 in turn completely crushed into chips and/or dust, so that it can be sucked off in the trimming station 42 .
  • the head part 33 is sawed further in a manner known per se, without this having to be explained further.
  • the remaining workpiece 1 according to 7 is now pulled back a little by the feed device 36 into the area of the rotating device 54, rotated there by 90°, gripped again by the feed device 36 with its grippers 37 and transported in direction 20 back to the saw line 3.
  • the trimming process along the hem line 10 on the workpiece 1 is first carried out using the trimming tool 11 of the trimming station 42, before the sawing processes are then carried out on the sawing line 3 along the first cutting lines 6 and the parallel other hem lines 28 is carried out.
  • the resulting workpiece strips 8 are then fed back and, if necessary, rotated analogously to the procedure already described, so that the sawing processes can then be carried out on the sawing line 3 along the second cutting lines 7 in a corresponding manner. If the resulting workpiece parts 9 are final formats, they can then be transferred to the removal area 41 . The workpiece part 9, on which a sawing process along the third cutting line 29 still has to be carried out, is fed back accordingly in order to then be able to carry out the third cut.
  • FIG. 12 to 14 now show an embodiment compared to the first embodiment of FIG Figures 9 to 11 somewhat modified panel dividing system 5 with which the method according to the invention can also be carried out.
  • the differences lie on the one hand in the design of the trimming station 42 and on the other hand in the design of the position determination device 22. These two differences will be discussed below. Otherwise, the above description of the embodiment according to the Figures 9 to 11 referred.
  • the trimming tool 11 is arranged here together with its scoring saw blade 44 in a trimming carriage 50, with which it can be moved parallel to the direction 20 for carrying out the trimming process.
  • the workpiece 1 to be trimmed is thus kept at rest during the trimming process by the feed device 36, while the trimming tool 11, which is also shown here as a Circular saw blade is formed, is moved along with the trimming carriage 50 on the workpiece 1, for example for trimming along the hem line 10.
  • the trimming station 42 has a trimming pressure bar 51 for this trimming process, with which the workpiece 1 or another part to be trimmed can be pressed onto the workpiece support table 35 during this trimming process.
  • the suction of the chips and/or the dust produced during the trimming process can take place via suction devices, which are not explicitly shown here but are known per se.
  • the second difference from the embodiment according to the Figures 9 to 11 is in 14 shown. It consists in the fact that in this exemplary embodiment the cutting width of the trimming tool 11 is designed so narrow that a waste strip 13 is separated from the workpiece 1 during trimming and then fed to the waste disposal device 14 of the panel dividing system 5, which is only shown schematically here. the inside 14 For this purpose, separated waste strips 13 slide over the chute 52 into the waste disposal device 14 and are disposed of there, for example as is known per se from the waste disposal 39, and may have been comminuted beforehand.
  • stop 26 is in the panel dividing systems 5 according to Figures 12 to 16 as a position determination device 22 either an optical measuring system 25 such as a light barrier or a camera system or an arrangement of in 12 illustrated probes 24 realized.
  • the mechanical probes can be measuring fingers or buttons that can be tilted or otherwise passed over, which then emit a signal from the position determination device 22 that is used to determine the position when the already trimmed end 23 or 27 of the workpiece strip 8 is moved over the mechanical probe 24 .
  • this position determination device 22 it is therefore possible to determine the position of the ends 23 of the workpiece strips 28 pointing to the sawing line 3 while the workpiece strip 8 is moved further away by the feed device 36 via the position determination device 22 .
  • the position determination device 22 is an optical measuring system 25 .
  • stopping the workpiece strips 8 when determining the position with these position determining devices 22 would also be conceivable.
  • the position of the front end 23 or 27 of the respective workpiece strip 8 can be determined very precisely, in order then to be able to position the workpiece strips 8 with their second cutting lines 7 exactly over the sawing lines 3. Delays in the measurement expression that may have to be taken into account can be taken into account by appropriate correction factors, insofar as this is necessary.
  • FIG. 17 now shows a variant of a panel dividing system 5, in which the workpiece 1 is sawed along the first cutting line 6 with the cutting saw 4, which can be moved along the sawing line 3, in the sawing station 38, and the workpiece strips 8 are cut along the second cutting line 7 with a further, along a further sawing line 18 movable cut-off saw 19 of the panel dividing system 5 are sawed.
  • the further sawing line 18 and the further separating saw 19 are located in the further sawing station 53. They are designed analogously to the sawing line 3 and the separating saw 4 of the sawing station 38, as is shown in FIGS 10 , 13 and 15 is shown schematically and was explained above.
  • the trimming process is carried out along the hem line 10 and the sawing processes are carried out along the first cut lines 6 and the other hem line 28 parallel thereto, as in the exemplary embodiments already described.
  • the trimming station 42 can be carried out as in all the embodiments already discussed.
  • the workpiece strips 8 produced in this way are then, in the variant according to FIG 17 but no longer fed back from the area 17 behind the sawing line 3 or the sawing station 38 back into the area 16 in front of the sawing line 3 or the sawing station 38 .
  • the robot 40 feeds the workpiece strips 8, if necessary with appropriate rotation, to the feed devices 36 upstream of the further sawing station 53, so that they grip the workpiece strips 9 with their grippers 37 and carry out the sawing processes along the second cutting lines 7 and the lines parallel thereto other hemline 28 of the other sawing line 18 can perform.
  • the position determination devices 22 for determining the already trimmed front ends 23 or 27 of the workpiece strips 8 are arranged correspondingly in front of the further sawing station 53 .
  • two feed devices 36 that operate in parallel and independently of one another are provided in front of the further sawing station 53, so that two workpiece strips 8 can be fed parallel and simultaneously next to one another, if necessary with different feeds of the further sawing station 53 and thus also of the further sawing line 18 for carrying out the sawing processes along the Second cut lines 7 and/or other hem lines 28 parallel thereto can be supplied.
  • the panel dividing system 5 shown can also be modified in such a way that the further sawing station 53 is preceded by only a single feed device 36 or by more than two feed devices 36 working parallel to one another.
  • the return device 15 leading around the further sawing station 53 can optionally be designed with a rotary device 54 in the manner already described.
  • the workpiece 1 can be trimmed along the at least one hem line 10 of the cutting plan 2 running parallel to the second cutting line(s) 7 using the trimming tool 11 before the workpiece 1 is sawed along the first cutting lines 6.
  • the position determining device 22 according to FIG 17 can be embodied in all the variants described above with regard to the other exemplary embodiments. Their function corresponds to the function of the position determination devices 22 described for the other exemplary embodiments.
  • FIG. 1 shows that it is also fundamentally possible to feed the workpiece strips 8 to the sawing lines 3 or 18 and the cutting saws 4 or 19 the other way round.

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
EP20211541.6A 2020-12-03 2020-12-03 Méthode pour scier au moins une pièce Pending EP4008507A1 (fr)

Priority Applications (1)

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EP20211541.6A EP4008507A1 (fr) 2020-12-03 2020-12-03 Méthode pour scier au moins une pièce

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP20211541.6A EP4008507A1 (fr) 2020-12-03 2020-12-03 Méthode pour scier au moins une pièce

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EP4008507A1 true EP4008507A1 (fr) 2022-06-08

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021125896A1 (de) 2021-10-06 2023-04-06 Ima Schelling Deutschland Gmbh Anlage, insbesondere Holzverarbeitungsanlage, zur Bearbeitung und Handhabung von plattenförmigen Werkstücken
EP4353432A1 (fr) * 2022-10-12 2024-04-17 IMA Schelling Austria GmbH Installation de division de plaques

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381686A (en) * 1980-05-21 1983-05-03 Schelling & Co. Apparatus for cutting and conveying planar workpieces
AT372035B (de) * 1981-09-25 1983-08-25 Schelling & C0 Plattenaufteilanlage mit mindestens einer laengssaege und einer quersaege
DE19930757A1 (de) * 1999-07-02 2001-01-04 Wessel Karl Heinz Aufteil-Sägenanlage
DE202007010479U1 (de) * 2007-07-27 2007-11-08 C.F. Scheer & Cie. Gmbh & Co. Plattenaufteilsäge
EP2422944B1 (fr) 2010-08-23 2016-06-15 Schelling Anlagenbau GmbH Procédé de sciage d'au moins une plaque
EP3081343A1 (fr) * 2015-04-15 2016-10-19 HOLZMA Plattenaufteiltechnik GmbH Installation de repartition de plaques et procede destine a repartir des pieces usinees en forme de plaques

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4381686A (en) * 1980-05-21 1983-05-03 Schelling & Co. Apparatus for cutting and conveying planar workpieces
AT372035B (de) * 1981-09-25 1983-08-25 Schelling & C0 Plattenaufteilanlage mit mindestens einer laengssaege und einer quersaege
DE19930757A1 (de) * 1999-07-02 2001-01-04 Wessel Karl Heinz Aufteil-Sägenanlage
DE202007010479U1 (de) * 2007-07-27 2007-11-08 C.F. Scheer & Cie. Gmbh & Co. Plattenaufteilsäge
EP2422944B1 (fr) 2010-08-23 2016-06-15 Schelling Anlagenbau GmbH Procédé de sciage d'au moins une plaque
EP3081343A1 (fr) * 2015-04-15 2016-10-19 HOLZMA Plattenaufteiltechnik GmbH Installation de repartition de plaques et procede destine a repartir des pieces usinees en forme de plaques

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021125896A1 (de) 2021-10-06 2023-04-06 Ima Schelling Deutschland Gmbh Anlage, insbesondere Holzverarbeitungsanlage, zur Bearbeitung und Handhabung von plattenförmigen Werkstücken
EP4353432A1 (fr) * 2022-10-12 2024-04-17 IMA Schelling Austria GmbH Installation de division de plaques

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