EP4353432A1 - Panel partitioning facility - Google Patents

Abstract

Panel dividing system (1) for dividing workpieces (2), wherein the panel dividing system (1) has a saw (3) for sawing the workpieces (2) along a sawing line (4) and a workpiece support table (6) extending in the area in front of and behind the sawing line (4) with a support plane (7) and a pressure beam (8) that can be raised and lowered, and a feed device (9) for transporting the workpieces (2) to be sawed in the main transport direction (5) towards the sawing line (4), and a removal device (10) for transporting partial workpieces (11) produced by sawing the workpieces (2) in the main transport direction (5) away from the sawing line (4), and a waste disposal opening (12) arranged behind the sawing line (4), wherein the panel dividing system (1) additionally has a waste transport device (13) with at least one movable back and forth parallel to the main transport direction (5) and across the sawing line (4). Waste conveyor (14) for transporting waste pieces (15) across the saw line to the waste disposal opening (12).

Description

The invention relates to a panel dividing system according to the preamble of patent claim 1 and a method for dividing workpieces according to the preamble of patent claim 13.

Panel dividing systems are generally highly automated and divide large-format workpieces consisting of panels or stacks of panels made of wood, metal, plastic or corresponding composite materials into smaller partial workpieces. This also produces waste pieces. These dividing processes usually involve processing pre-generated cutting plans at high cycle speeds. It is essential for the performance of the panel dividing system that not only the sawing processes are carried out at high speed, but also the entire handling of the workpieces, especially their transport. Feeding the workpieces to the saw line and transporting partial workpieces and waste pieces away from the saw line should cause as little downtime for the saw as possible.

A generic panel cutting machine is, for example, from the EP2 578 370 AI known.

The object of the invention is to further develop a generic panel dividing system in such a way that the required downtime of the saw is reduced even further The generic procedure mentioned at the beginning should also be improved in this regard.

To solve this problem, on the one hand a panel dividing system according to patent claim 1 and on the other hand a method according to patent claim 13 are proposed.

A panel dividing system according to the invention is thus characterized in that the panel dividing system additionally has a waste transport device which is mounted at a distance above the support plane and can be moved back and forth at least parallel to the main transport direction, with at least one waste conveyor which can be moved back and forth parallel to the main transport direction and across the sawing line for transporting waste pieces across the sawing line to the preferably closable waste disposal opening.

A method according to the invention is characterized in that, following a sawing process mentioned in the preamble of claim 13, at least one further workpiece is transported by means of the feed device in the main transport direction to the sawing line, while at the same time the waste piece produced by the sawing process is transported by a waste transport device of the panel dividing system in the main transport direction to the, preferably closable, waste disposal opening, while at the same time the partial workpiece is transported away from the sawing line by the removal device in the main transport direction.

To minimize the downtime of the saw, in a panel dividing system according to the invention, in simple terms, in addition to the feeding device and the A waste transport device is provided which can feed waste pieces across the saw line to a waste disposal opening in the workpiece support table.

In the method according to the invention, to put it simply, it is provided that at the same time as the feed device, another workpiece is transported to the sawing line, while the waste transport device transports the piece of waste produced during the last sawing process to the waste disposal opening and, at the same time, the removal device transports the last-produced partial workpiece away from the sawing line.

In the method according to the invention, it is preferably provided that the waste piece produced by the sawing process is transported by the waste transport device of the panel dividing system in the main transport direction across the sawing line to the preferably closable waste disposal opening.

Preferably, the method according to the invention is carried out with a panel dividing system according to the invention, or in other words, it is preferably provided that the panel dividing system with which the method according to the invention is carried out is a panel dividing system according to the invention.

Panel dividing systems according to the invention have the advantage that they can work very quickly and efficiently. When carrying out the method according to the invention, the cycle time of the saw can be carried out just as quickly in sawing processes that produce waste pieces as in sawing processes that do not produce waste pieces. The method according to the invention ensures that the removal of the waste pieces does not cause any additional downtime for the saw.

The indefinite articles a and an used in connection with the description of the invention and its preferred embodiments are also to be understood in the sense of at least one or at least one. All of the components of the panel dividing system mentioned can therefore also be present in multiples. For features where this is particularly preferred, we immediately speak of at least one or at least one.

The type and design of the saw can be based on a wide variety of options known per se in the state of the art. All of these options can be used, as far as they are technically possible and sensible, in panel dividing systems according to the invention and methods for operating them. However, the saw is particularly preferably at least a circular saw which can be moved back and forth along the sawing line in a saw carriage. The saw can be conveniently raised above the support level in the saw carriage in order to carry out a sawing process. However, it can also be conveniently lowered below the support level in order to be able to move under the sawing line without collision. The saw can also include known scoring saw blades. These details of the saw are known per se in the state of the art and do not need to be explained further here.

The term sawing describes the sawing process in which one or more workpieces are sawn into partial workpieces and/or waste pieces by means of the saw by moving it along the sawing line. The term Dividing the workpieces includes the sawing operations but also other transport operations and other work steps carried out with the panel dividing system for dividing the workpieces.

The feed device is first of all intended to transport workpieces to be sawn in the main transport direction towards the saw line and preferably also to position them there for the next sawing process. Preferably, however, workpieces can also be transported with the feed device against the main transport direction and, if necessary, also pulled back over the saw line. Preferably, the feed device has known grippers that can be raised and lowered, with which it can grip the panels and also release them again. The grippers can also reach across the saw line, viewed in the main transport direction, from the area in front of the saw line to the area behind the saw line. Usually, the feed device has several such grippers, which are arranged at a distance from one another, viewed parallel to the saw line. The distances can vary or be the same. The feed device can have a preferably elongated gripper carrier, to which the grippers are attached so that they can be raised and lowered. This gripper carrier can in turn be mounted on guide rails so that they can be moved back and forth, parallel to the main transport direction. Other types of feeding device are also conceivable. There are numerous different designs in the current state of the art. The feeding device could also be referred to as a feed device.

The removal device is primarily intended to transport the partial workpieces produced by a sawing process in the direction of the main transport direction away from the sawing line. transport. However, in preferred embodiments, the removal device can also be used to push workpieces or partial workpieces back against the main transport direction and in particular also to push them back over the saw line. There are also various possible designs for the removal device, which are known per se in the state of the art. These can be suction grippers, among others. These can be raised and lowered together with the workpiece or partial workpiece. In addition to moving back and forth parallel to the main transport direction, it can also be possible to lift the workpieces or partial workpieces with the removal device. For example, it can also be a robot with a robot arm and a suction gripper arranged on it. With such a robot arm, the workpieces or partial workpieces can then be moved by the removal device in all three spatial directions. In preferred embodiments, the removal device can also reach from the area behind the saw line across the saw line into the area in front of the saw line, seen in the main transport direction.

The state of the art also provides a wide variety of designs for the pressure bar, which can also be implemented in combination with the invention. It can be a single pressure bar, or several pressure bars that can be raised and lowered independently of one another. The pressure bar can be designed with or without suction, etc.

Regarding the pressure beam and the saw, it should be noted that one saw and one pressure beam are generally sufficient for each sawing line. However, it can also be It can be provided that several saws are mounted so that they can move along a single saw line. In the same way, several pressure beams can be provided for a saw line, preferably arranged one behind the other along the saw line and which can be controlled independently.

In principle, it should also be pointed out that even known panel sizing systems with several sawing lines can be designed according to the invention.

In the sense of these numerous different possibilities of how panel dividing systems according to the invention can be equipped, it is also explicitly pointed out that it can also be provided that the workpiece support table is divided into several table strips arranged next to one another parallel to the main transport direction, with each table strip being assigned at least its own feed device and its own removal device and its own waste transport device. These table strips can be separated from one another by guides, separating strips, cross stops and the like arranged between them, which extend beyond the support plane. The table strips are arranged parallel to one another and preferably directly next to one another parallel to the main transport direction. The table strips can be assigned a single saw line with a single saw and a single pressure beam. However, it is also conceivable, for example, to provide several saws in such embodiments that can be moved along the saw line and also several pressure beams, in particular arranged one behind the other along the saw line. In such embodiments, it is preferably provided in each case that the feed devices, removal devices assigned to the respective table strips and waste transport devices can operate independently of those of the other table strips.

In general, it should be noted that panel dividing systems according to the invention can be operated fully or partially automatically. In this sense, it is advantageous if all movable parts are motor-driven. Corresponding motor drives and their control are known in the state of the art and do not need to be explained further.

Preferably, it is in any case provided that the feeding device and the removal device and the waste transport device can be driven independently of one another, preferably by means of their own motor drives.

In order to carry out the method according to the invention with a panel dividing system according to the invention, it is advantageously also provided that the feeding device and the removal device and the waste transport device can be driven simultaneously, preferably by means of their own motor drives.

Preferred variants provide that the waste transport device has two differently designed waste transporters for transporting the waste pieces across the sawing line to the preferably closable waste disposal opening.

The waste disposal opening can be conveniently closed by means of a waste flap, as is known per se. However, other closing devices can also be provided to prevent unwanted objects can fall into the waste disposal opening. In special cases, the waste disposal opening can be permanently open even without a closure, for example if only partial workpieces are produced that are large enough to ensure that they cannot fall into the waste disposal opening. With the waste flap closed, or generally in the closed state, the waste flap or other closure is advantageously a part of the workpiece support table and thus also of the support level.

The waste transporters can be designed in different ways. In a first embodiment, it can be provided that the waste transporter or, in the case of two differently designed waste transporters, one of the waste transporters is designed as a waste sliding bar, preferably driven in a way that can be raised and lowered and extends longitudinally parallel to the saw line.

However, it can also be provided, for example, that the waste transporter or, in the case of two differently designed waste transporters, one of the waste transporters is designed as a waste suction gripper, preferably driven in a way that can be raised and lowered, or as a sequence of waste suction grippers arranged at a distance from one another, preferably driven in a way that can be raised and lowered, aligned parallel to the saw line.

In order to be able to move the waste conveyor back and forth in the main transport direction, various types of motor drives for the waste conveyor or the waste transport device are possible.

In a first embodiment, it can be provided, for example, that the pressure bar is parallel to the Main transport direction is supported so that it can move back and forth across the saw line and at least one waste conveyor is attached to the pressure beam.

In such variants, the waste transport device is integrated with the pressure bar, so that the waste transporter can be moved back and forth together with the pressure bar, parallel to the main transport direction.

In other embodiments, the waste transport device can also have its own motor drive. In such embodiments, it is then provided, for example, that the waste transport device has a waste transport drive that is independent of the pressure beam and the feed device and the removal device for moving the waste conveyor back and forth across the saw line parallel to the main transport direction. Preferred embodiments again provide that the waste transport drive is arranged at a distance above the support plane.

In order to align the workpieces in front of the saw line, preferred variants of the invention provide that, viewed in the main transport direction, in the area in front of the saw line and at a distance from the saw line, at least one stop is arranged in the workpiece support table, which stop can be lowered below the support plane and raised above the support plane by a motor drive.

In order to further optimize the feeding of the workpieces to be sawn, particularly preferred variants of the invention provide that the panel dividing system, seen in the main transport direction, additionally a workpiece feeding device, preferably integrated into the workpiece support table, with which workpieces can be transported in the main transport direction into a working area of the feeding device.

The last two aspects can also be combined in such a way that the workpieces can be moved with the workpiece feeding device in the main transport direction against the stop raised above the support plane.

The preferred embodiments of the panel dividing system according to the invention result in correspondingly preferred variants of the method according to the invention.

Fig.1

ein Beispiel für einen an sich bekannten Schnittplan, welcher unter Verwendung erfindungsgemäßer Plattenaufteilanlagen und auch erfindungsgemäßer Verfahren abgearbeitet werden kann;

Fig. 2

eine vereinfachte, schematisierte Darstellung zur Erläuterung der Erfindung;

Fig. 3

eine perspektivische, schematisierte Darstellung eines ersten erfindungsgemäßen Ausführungsbeispiels einer Plattenaufteilanlage;

Fig. 4

eine Draufsicht auf die Plattenaufteilanlage gemäß Fig. 3;

Fig. 5 bis 9

Detaildarstellungen zu diesem ersten erfindungsgemäßen Ausführungsbeispiel im Bereich des Druckbalkens und der Abfalltransportvorrichtung;

Fig. 10 bis 13

Seitenansichten auf einen zentralen Teilbereich der Plattenaufteilanlage des ersten Ausführungsbeispiels in verschiedenen Betriebszuständen;

Fig. 14 bis 16

Detaildarstellungen zu einer alternativen Ausgestaltung des ersten Ausführungsbeispiels im Bereich des Druckbalkens und der Abfalltransportvorrichtung;

Fig. 17 bis 20

Darstellungen zu einem zweiten erfindungsgemäßen Ausführungsbeispiel einer Plattenaufteilanlage jeweils in einer Seitenansicht in verschiedenen Betriebszuständen;

Fig. 21

eine Variante des zweiten Ausführungsbeispiels einer erfindungsgemäßen Plattenaufteilanlage mit einer als Roboter ausgebildeten Abtransportvorrichtung;

Fig. 22 bis 28

Darstellungen zu verschiedenen Varianten einer Abfallschiebeleiste;

Fig. 29 und 30

eine Weiterentwicklung des zweiten Ausführungsbeispiels einer erfindungsgemäßen Plattenaufteilanlage, jeweils in einer Seitenansicht und

Fig. 31 und 32

Darstellungen zur Verwendung einer Abfallschiebeleiste als Anschlag.

Further features and details of preferred embodiments of the invention are explained by way of example in the following description of the figures. They show:

Fig.1

an example of a cutting plan known per se, which can be processed using panel dividing systems according to the invention and also methods according to the invention;

Fig.2

a simplified, schematic representation to explain the invention;

Fig.3

a perspective, schematic representation of a first embodiment of a panel dividing system according to the invention;

Fig.4

a top view of the panel cutting machine according to Fig.3 ;

Fig. 5 to 9

Detailed representations of this first embodiment according to the invention in the area the pressure beam and the waste transport device;

Fig. 10 to 13

Side views of a central portion of the panel dividing system of the first embodiment in different operating states;

Fig. 14 to 16

Detailed representations of an alternative design of the first embodiment in the area of the pressure bar and the waste transport device;

Fig. 17 to 20

Representations of a second embodiment of a panel dividing system according to the invention, each in a side view in different operating states;

Fig. 21

a variant of the second embodiment of a panel dividing system according to the invention with a removal device designed as a robot;

Fig. 22 to 28

Illustrations of different variants of a waste sliding bar;

Figs. 29 and 30

a further development of the second embodiment of a panel dividing system according to the invention, each in a side view and

Fig. 31 and 32

Illustrations for using a waste sliding bar as a stop.

Fig.1 shows a plan view of a plate-shaped workpiece 2, a cutting plan shown here as an example, according to which this workpiece 2 can be divided using a plate dividing system 1 according to the invention. The workpiece can be a plate or a stack of plates. The method according to the invention can also be used to divide the workpiece, as will be explained in more detail below. Such Cutting plans are known in numerous forms. Ultimately, the design of the cutting plans is about using the workpiece 2 as effectively as possible and producing as little waste as possible. In addition, the cutting plans are designed in such a way that they can be implemented in a panel cutting system 1 with as little downtime as possible and as quickly as possible. Fig.1 the various cutting lines 22 to be carried out are shown, as are the partial panels 11 resulting from them and the waste pieces 15 shown in hatched form that also arise. It is known in the prior art to process such cutting plans with so-called first, second, third and possibly fourth cuts. In the first cuts, the workpiece 2 is first sawn into workpiece strips by means of sawing processes along mutually parallel cutting lines 22. These workpiece strips are then further sawn into second, third and/or fourth cuts as necessary, provided they are not already the final desired partial workpieces 11. This creates either the final desired partial workpieces 11 or intermediate formats that have to be sawn further. The intermediate formats created in this process are rotated and/or returned if necessary or fed to other sawing lines. Ultimately, these sawing processes produce partial workpieces 1 and waste pieces 15. There are a wide variety of variants known per se in the state of the art for dividing workpieces 2 using such cutting plans, which, as far as technically reasonable and possible, can be implemented with panel dividing systems 1 according to the invention and also using methods according to the invention.

Fig.2 shows schematically a sawing line 4 with a saw 3 designed as a circular saw blade, which is arranged so that it can be moved along the sawing line 4. With this, the Fig.2 The first workpiece 2 or 23 shown as an example can be sawn into the partial workpiece 11 and the waste piece 15 after the workpiece 2 or 23 has been cut from the Fig.2 not shown feeding device 9 in the main transport direction 5 to the saw line 4 and positioned accordingly on it. Seen in the main transport direction 5, in front of the saw line 4 in Fig.2 another workpiece 2 or 24 is already positioned in order to then be transported to the sawing line 4 by means of the feed device 9 and positioned on this in such a way that the further workpiece 2 or 24 can then be sawn step by step into the partial workpieces 11 and the waste piece 15.

Based on the Fig.2 In the situation shown, after the first workpiece 2 or 23 has been sawn into the waste piece 15 and the partial workpiece 11 by a corresponding sawing process, the method according to the invention can be applied in which the further workpiece 2 or 24 is sawn off from the Fig.2 not shown feeding device 9 in the main transport direction 5 towards the saw line 4, while at the same time the waste piece 15 is fed by means of the also not shown waste transport device 13 to a Fig.2 waste disposal opening 12 in the workpiece support table 6 (also not shown) and at the same time the partial workpiece 11 of the former first workpiece 23 is transported by means of a Fig.2 is transported away from the saw line 4 by a removal device 10, also not shown. All three transport processes, i.e. those of the further workpiece 2 or 24, the waste piece 15 and of the partial workpiece 11 are carried out simultaneously, so that the removal of the waste piece 15 does not require any additional time and in particular does not result in any additional dead time on the saw 3.

Fig.3 now shows a first embodiment of a panel dividing system 1 according to the invention for dividing workpieces 2, which can consist of individual panels but also of panel stacks. Fig.4 shows a plan view of the panel dividing system 1 of this first embodiment.

As is known per se, the panel dividing system 1 has a workpiece support table 6 extending in front of and behind a saw line 4, as seen in the main transport direction 5. The surface of the workpiece support table 6 forms a Fig. 10 to 13 drawn support level 7. The workpieces 2, i.e. the panels or the panel stacks, are placed on this support level 7 for division.

The saw 3 for sawing the workpieces 2 can be moved along the sawing line 4. In the Fig.3 and 4 the saw line is not directly visible, but hidden under the pressure bar 8. For better orientation, the saw line 4 is in Fig.4 It is better seen in the Fig. 10 to 13 .

In the embodiments implemented here, the saw 3 is a circular saw blade, which, as in the Fig. 10 to 13 indicated, is arranged in a saw carriage 41 that can be raised and lowered. The saw 3 can be moved back and forth along the saw line 4 with the saw carriage 41. If the saw 3 is raised sufficiently far above the support plane 7, a workpiece 2 can be sawn. For example, for For return transport operations, when no sawing operation is to take place, the saw 3 can also be sunk into the saw carriage 41 so far that it does not protrude beyond the support surface 7. All of this is known in the state of the art and does not need to be explained further. The saw 3 can of course comprise not only a main saw blade, but also a scoring saw blade or the like.

Above the saw line 4 there is at least one pressure bar 8 for pressing the workpieces 1 onto the support plane 7 of the workpiece support table 6 in the area of the saw line 4. Such pressure bars 8 are known in the state of the art and do not need to be explained further with regard to their basic function. They can, as in this embodiment, have an integrated suction device, as is the case in the Fig. 10 to 13 can be seen from the suction nozzle 36 shown there. It can be a single pressure beam 8 extending over the entire length of the saw line 4. In the embodiment shown, however, there are two pressure beams 8 arranged one behind the other along the saw line 4 for stability reasons. These also have the advantage that they can be moved up and down independently of one another. The pressure beam 8 can thus be divided into even more segments, but it can also be a single pressure beam 8. This can be adapted to the respective task and dimensions of the panel dividing system 1.

In the first embodiment shown here, as in the Fig.3 and 4 As can be clearly seen, the workpiece support table 6 is divided into several table strips 21 arranged parallel to the main transport direction 5. Here in this embodiment, this is particularly the case, in This is the case, as seen in the main transport direction 5, in front of the saw line 4. Each of these table strips 21 of this first embodiment is assigned its own feed device 9, its own removal device 10 and its own waste transport device 13.

This does not have to be the case. Panel dividing systems 1 according to the invention can of course also be designed in such a way that the entire workpiece support table 6 forms a single table strip 21. In other words, in these embodiments, the workpiece support table 6 is not divided into table strips 21 arranged next to one another. In this case, the panel dividing system 1 then generally has only one feed device 9, one removal device 10 and also only one waste transport device 13.

In this first embodiment, as shown in the Fig.3 and 4 clearly visible, but it is provided that each table strip 21, in the area seen in the main transport direction 5, in front of the sawing line 4, is assigned its own feed device 9, which is mounted so as to be movable back and forth parallel to the main transport direction 5, for transporting the workpieces 2 to be sawn in the main transport direction 5 to the sawing line 4. Theoretically, it is also conceivable that a feed device 9 can transport the workpieces 2 not only parallel to the main transport direction 5, but also horizontally and/or vertically in directions orthogonal to the main transport direction 5. However, this is not implemented here. It should also be noted that the feed devices 9, as is known per se in the prior art, can also be used to transport workpieces 2, or partial workpieces 11 resulting from them, against the main transport direction 5, in particular across the sawing line 4. to pull them back again. The feed devices 9 are here at least mounted so that they can move at a distance above the support plane 7. The feed devices 9 are mounted in this embodiment, as is known per se, so that they can move back and forth on guide rails 25 running parallel to the main transport direction 5. They each have a beam-shaped gripper carrier 52 which extends longitudinally in a direction orthogonal to the guide rails 25 and on which, as is known per se, grippers 26 for gripping the workpieces 2 or the partial workpieces 11 are mounted so that they can be lowered onto the support plane 7 and also lifted off from it. The grippers 26 can, as in Fig.4 can be clearly seen, are arranged at different distances along the respective gripper carrier 52. They could just as well be distributed equidistantly over the length of the gripper carrier 52. It is also possible to design the grippers 26 to be displaceable or adjustable along the respective gripper carrier 52. Such feed devices 9, as shown here in the first embodiment, are sufficiently known in the prior art under the term feed device or insertion carriage, so that they do not need to be explained further. Of course, other types of feed devices 9, such as robots with robot arms or the like, could also be implemented.

In this embodiment, viewed in the main transport direction 5, behind the sawing line 4, there are again several removal devices 10, which are mounted at a distance above the support plane 7 and can be moved back and forth at least parallel to the main transport direction 5. They serve to remove the partial workpieces 11 produced by sawing the workpieces 2, viewed in the main transport direction 5, away from the sawing line 4. In the first embodiment implemented here, this removal device can be used 10 the respective partial workpieces 11 are transported from the sawing line 4 in the main transport direction 5 to a further transport path 29. This is usually done when the partial workpieces 11 created by sawing have already reached their final desired format. If these are intermediate formats on which further sawing processes, such as second, third and/or fourth cuts, have to be carried out, these intermediate formats are fed to the return transport path 30 using the removal device 10. The return transport path 30 transports the intermediate formats that have not yet been fully sawn back to the area in front of the sawing line 4. There they can be placed back on the support level 7 of the workpiece support table 6 using appropriate, known means such as robots or robot arms, in order to then be fed back to the sawing line 4 as workpiece 2 in the main transport direction 5 and further sawn there. This return transport of workpieces 2 or intermediate formats is described in various forms in the state of the art, so that this does not need to be explained in detail here. In the embodiment shown here in the Fig.3 and 4 Each removal device 10, as is known per se, has suction grippers with which it can suck in and thus grip the partial workpieces 11 and, if necessary, also intermediate formats or workpieces 2. Each of the suction grippers shown here in the first embodiment in Fig.3 and 4 The transport devices 10 shown are mounted on a guide rail 33 that extends longitudinally parallel to the main transport direction 5 and can be moved back and forth. Preferably, each transport device 10 can be lowered vertically onto the support plane 7 and lifted off again from there. Even if the transport devices 10 are primarily intended to transport partial workpieces 11 away from the saw line 4 in the main transport direction 5, transport, the removal devices 10 can also be used to transport workpieces 2 or partial workpieces 11 or even intermediate formats against the main transport device 5, e.g. in order to push them back over the saw line 4.

Seen in the main transport direction 5, behind the saw line 4 there is a Fig. 10 to 13 more visible waste disposal opening 12 through which waste pieces 15 can fall into the waste disposal channel 31 below, in order to be subsequently transported away in this waste disposal channel 31. This waste disposal opening 12 is advantageously designed to be closable. In the embodiment shown here, a waste flap 40 known per se is implemented as a closure of the waste disposal opening 12. If the waste flap 40 is in its Fig. 10, 11 and 13 shown, it closes the waste disposal opening 12. In this horizontal starting position, the waste flap 40 also forms a part of the support plane 7 of the workpiece support table 6. If, however, the waste flap 40 is in its Fig. 12 shown, folded-down position, pieces of waste 15 can fall through the waste disposal opening 12 into the waste disposal channel 31 and be transported away from there in a direction orthogonal to the main transport direction 5. Instead of the waste disposal channel 31, other designed waste conveyors could of course also be implemented in order to transport away the pieces of waste 15.

In addition to the feeding devices 9 and the removal devices 10, the panel dividing system 1 according to the invention of this first In the first embodiment, each table strip 21 has a waste transport device 13 which is mounted at a distance above the support plane 7 and can be moved back and forth at least parallel to the main transport direction 5. Each of these waste transport devices 13 in turn comprises at least one waste transporter 14 which can be moved back and forth parallel to the main transport direction 5 and across the saw line 4. With this, waste pieces 15 can be transported across the saw line 4 to the waste disposal opening 12, which is preferably designed to be closable. In this first embodiment, each table strip 21 is assigned its own waste transport device 13. This does not necessarily have to be the case, of course. In particular, if the entire workpiece support table 6 only forms a single table strip 21, a single waste transport device 13 is of course sufficient. Nevertheless, several waste transport devices 13 can also be provided in this embodiment variant. The specific design of the waste transport devices 13 of the first embodiment implemented here is explained further below with reference to the Fig. 5 to 9 explained in more detail.

In any case, in the embodiments shown here, the feed device 9 and the removal device 10 and the waste transport device 13 can be driven independently of one another, each by means of its own motor drive. Suitable motor drives are known per se and do not need to be explained in detail here. Despite the possibility of driving the feed device 9 and the removal device 10 and the waste transport device 13 independently of one another, it is advantageously provided, in particular for the implementation of the method according to the invention, that the feeding devices 9 and the removal devices 10 and the waste transport device 13 can be driven simultaneously by means of their respective motor drives.

How the waste transport devices 13 are designed and driven in this first embodiment will now be explained below with reference to the detailed illustration in Fig. 5 to 9 explained.

This first exemplary embodiment is one in which the pressure beam 8 is mounted so as to be movable back and forth parallel to the main transport direction 5, across the sawing line 4, and at least one waste conveyor 14 is attached to the pressure beam 8. In other words, in this first exemplary embodiment, the waste transport device 13 is integrated into the pressure beam 8, which can be moved back and forth across the sawing line parallel to the main transport direction 5, or is moved along with it parallel to the main transport direction 5. The motor drive for moving the pressure beam 8 in directions parallel to the main transport direction 5 is therefore also used in these exemplary embodiments to transport the waste transport device 13 and thus the waste conveyors 14 in the main transport direction 5 and against the main transport device 5.

In principle, each waste transport device 13 can only have a single waste transporter 14. However, this is not the case in this first embodiment. Rather, it is provided that the waste transport device 13 has two differently designed waste transporters 14 for transporting the Waste pieces across the saw line 4 to the preferably closable waste disposal opening 12.

The Figs. 5, 6, 7 , 8 and 9 now show in detail how the pressure bar 8 of this first embodiment is mounted on the pressure bar supports 32, both parallel to the main transport direction 5, movable back and forth, and in vertical directions, i.e. away from the support plane 7 and towards the support plane 7. Shown in the Fig. 5 to 9 only the suspension of the pressure beam 8 on one of the pressure beam supports 32. The opposite side, not shown here, can be designed analogously.

Especially in the Fig. 5 and 6 It can be clearly seen that the pressure beam supports 32 of this first embodiment are frame-shaped and, as in Fig.6 can be seen, have horizontally running guide rails 37. Guide plates 39 are mounted on these guide rails 37 in a motor-driven manner, so that by moving the guide plates 39 along the guide rails 37, the pressure beam 8 and the parts connected to it can be moved back and forth parallel to the main transport direction 5. Due to this frame-shaped design of the pressure beam supports 32 and the guide rails 37, the pressure beam 8 is thus mounted so that it can be moved in a horizontal direction parallel to the main transport direction 5. The motor drives required for this can be designed very differently. For example, they can be rack and pinion drives with drive motors that move along with them. Only one motor can be installed and the drive torque can be transmitted via a drive shaft to both sides, i.e. to both pressure beam supports 32. A separate motor drive could just as well be mounted on each pressure beam support 32 for moving the pressure beam 8 or the guide plate 39 in directions parallel to the main transport direction 5. If there are several drive motors, their synchronization can be done e.g. electrically or mechanically via a drive shaft.

On the guide plate 39, which could also be referred to as a carriage, there are also vertical guides along which the pressure beam 8 can be moved vertically, i.e. towards and away from the support plane 7. The motor drives for this can be designed in a similar way to the motor drives described above for moving in a horizontal direction, without this having to be explained in detail here. In principle, all drive solutions known per se in the state of the art and suitable for the task can be used here. These can be, for example, pneumatic or hydraulic drives or, for example, spindle or crank drives. Other electric linear drives can also be used.

In the Fig. 5 to 9 it is clearly visible that in this embodiment, a cross-alignment guide 35 with a cross-aligner 34 that can be moved along the cross-aligner guide 35 is provided between the pressure beam supports 32. These cross-aligners 34 are optional and do not necessarily have to be present. They are used when precise right-angled cuts are to be produced. This can be the case especially with second, third and fourth cut parts. The cross-aligner 34 extends to just above the support plane 7 and can align workpieces 2 against cross stops 27 mounted exactly at right angles to the saw line 4. These cross stops 27 could also be referred to as angle stops. In the process sequence, the alignment is advantageously carried out immediately after the feed device 9 has placed the workpiece 2 on the saw line 4. positioned and shortly before the pressure beam 8 presses the workpiece 2 against the support plane 7 of the workpiece support table 6 and fixes it there. Each table strip 21 can have its own cross aligner 34 and its own cross stop 27. If a pressure beam 8 spans several table strips 21, the cross stops 27 located between them are advantageously mounted on the workpiece support table and the pressure beam 8 is provided with corresponding recesses. As explained at the beginning, it could also be provided that each table strip 21 is assigned its own pressure beam 8. The cross stops 27 can also be extended by stop rails reaching into the area in front of the saw line 4. In this area, seen in the main transport direction 5, in front of the saw line 4, there can also be additional cross aligners (not shown here), the guides of which are arranged below the support plane 7 and the aligners of which reach upwards, for example, between the rollers of a roller conveyor or roller table. This also allows very long workpieces 2 to be aligned and/or workpieces 2 to be aligned before being gripped with the grippers 26 of the feed device 9. The alignment of the workpieces 2 with the cross aligners 34 is advantageously carried out before they are gripped by the feed device 9 and aligned in the main transport direction 5 on the saw line 4.

In the Fig. 5 to 9 It is also easy to see that in this embodiment a guide carriage 38 connects the two guide plates 39. This guide carriage 38, which is designed in the form of a plate, runs in a direction orthogonal to the main transport direction 5 and thus parallel to the saw line 4. In this first embodiment, as shown in the Fig. 5 to 9 shown, the waste transport device 13 is arranged with its waste transporters 14. This embodiment is a waste transport device 13 with two differently designed waste transporters 14. These serve to transport the waste pieces 15 across the saw line 14 to the waste disposal opening 12. As can be seen in particular in the Fig. 6 to 9 As can be clearly seen, one of the waste transporters 14 is a waste sliding bar 16 that can be raised and lowered and extends parallel to the saw line 4. This can be moved with its motor drive between the Fig.7 and 9 shown raised position and the one in Fig.8 shown lowered position in vertical directions. The motor drives for this are attached to the guide carriage 38 in this first embodiment. These can be, for example, electric, hydraulic or pneumatic linear drives. Here too, the entire range of drives known in the state of the art and applicable here is available. In the lowered position according to Fig.8 This waste pushing bar 16 can in any case be used to push waste pieces 15 across the sawing line 4 to the waste disposal opening 12 by simultaneously moving the guide carriage 38 and thus also the pressure bar 8 in a horizontal direction, i.e. parallel to the main transport direction 5.

As a second type of waste transporter 14, the waste transport device 13 in this first embodiment has a sequence of waste suction grippers 17 arranged parallel to the saw line 4 and spaced apart from one another. These can also be raised and lowered, i.e. moved vertically towards and away from the support plane 7. Here too, various Linear drives known per se in the prior art are used to move the waste suction grippers 17 in the vertical direction. Suction grippers which are suitable for gripping pieces of waste 15 are known per se in the prior art, so that the waste suction grippers 17 do not need to be explained further in this regard. Instead of the sequence of waste suction grippers 17 arranged at a distance from one another and aligned parallel to the saw line 4, a single waste suction gripper 17 could theoretically also be provided. Fig.8 shows this waste suction gripper 17 in raised position and Fig.9 in a lowered position in which they can suck up and thus pick up a piece of waste 14. In this embodiment, it is therefore possible to transport a piece of waste 15 in the main transport direction 5 over the saw line 4 to the waste disposal opening 12 using both the waste suction grippers 17 and the push-off bar 16. Of course, alternatively, only one of these possible types of waste transporters 14 can be provided with a corresponding waste transport device 13.

The Fig. 14 to 16 show alternative designs to the Fig. 5 to 9 . In the variant according to Fig. 14 to 16 the cross aligner 34, the cross aligner guide 35 and also the guide carriage 38 are omitted. The otherwise as in the previously described variant according to the Fig. 5 to 9 trained waste transporters 14 in the form of the waste sliding bar 16 and the waste suction grippers 17 are with their drives in the variant according to the Fig. 14 to 16 here in this variant, they are attached directly to the pressure beam 8. They can be moved by means of their drives as required relative to the pressure beam 8 in a vertical direction, i.e. towards and away from the support plane 7. Otherwise, this alternative corresponds to the Fig. 14 to 16 in construction and Functioning essentially of the Fig. 5 to 9 described variant, so that reference can be made to its description in addition.

The Fig. 10 to 13 show a schematic vertical section through the panel dividing system 1 of the first embodiment in the area in front of and behind the saw line 4. Before the method according to the invention is explained using this illustration, it should first be pointed out that in this first embodiment, seen in the main transport direction 5, in the area in front of the saw line 4 and at a distance from the saw line 4 in the workpiece support table 6, a stop 19 is arranged which can be lowered below the support level 7 and raised above the support level 7 by a motor. Known motor drives can also be used for this without these having to be explained in more detail. It should also be noted that the panel dividing system 1 of this first embodiment, viewed in the main transport direction 5, has not only the stop 19 for each table strip 21 in front of the saw line 4, but also a workpiece feed device 20 integrated here in the workpiece support table 6, with which workpieces 2 can be transported in the main transport direction 5 into the working area of the respective feed device 9. If, in contrast to the first embodiment shown here, the panel dividing system 1 has only one table strip 21, then a single workpiece feed device 20 and also a single stop 19 are sufficient. The workpiece feed device 20 can in any case preferably be designed as a roller conveyor, belt conveyor or as another workpiece feed device 20 known per se, preferably integrated in the workpiece support table 6. This workpiece feed device 20 can also be designed as a feed device arranged above the support plane 7. Preferably, in any case, it is provided that the workpieces 2 can be moved with the workpiece feed device 20 in the main transport direction 5 against the stop 19 raised above the support plane 7, as can be seen from the Fig. 10 and 11 is shown.

By means of the workpiece feed device 20 it is possible to transport another workpiece 2 or 24 up to the stop 19 into the working area of the feed device 9, while the feed device 9, as in Fig.10 shown, is still busy transporting the preceding first workpiece 23 in the main transport direction 5 to the saw line 4 and aligning it on this. In other words, in preferred embodiments, the workpiece feed device 20 can ensure that further workpieces 24 are already provided in the working area of the respective feed device 9, while the feed device 9 itself is still busy doing something else.

Fig.10 now shows a snapshot in which the feeding device 9 has positioned the first workpiece 2 or 23 gripped with its grippers 26 above the saw line 4 in such a way that, as in Fig.10 shown, with the pressure beam 8 lowered, the saw 3 can be moved in the raised position with the saw carriage 41 along the sawing line 4 in order to carry out the desired sawing process. In this case, sawdust can be sucked out by means of the suction nozzle 36 through the pressure beam 8, as is known per se. The waste transporters 14 in the form of the waste suction grippers 17 and the waste sliding bar 16 are moved upwards accordingly, so that they facilitate the positioning of the workpiece 2 or 23. The waste flap 40 closes in Fig.10 the waste disposal opening 12. In Fig.10 the removal device 14 has already gripped the rear end of the first workpiece 23 with its surface suction grippers, so that after completion of the sawing process and lifting of the pressure beam 8, the partial workpiece 11 thus produced can be transported immediately in the main transport direction 5 to the further transport path 29. In Fig.10 It can also be seen that by means of the workpiece feeding device 20 a further workpiece 2 or 24 is already being fed in the main transport direction 5, while the feeding device 9 is still gripping the first workpiece 2 or 23.

With regard to the removal device 10, it should also be noted that it is advantageously designed to be rotatable about a vertical axis, so that it can transport partial workpieces 11 not only parallel to the main transport direction 5 but also rotate about the said vertical axis. Such rotating devices are known per se and do not need to be explained further here.

In Fig. 11 the workpiece feed device 20 has already brought the further workpiece 2 or 24 up to the stop 19 raised above the support plane 7. In the meantime, the feed device 9 has positioned the first workpiece 2 or 23 above the sawing line 4 so that the pressure beam 9 could be lowered for the last sawing process on this first workpiece 2 or 23. In Fig. 11 the feeding device 9 has already released this first workpiece 23 with its grippers 26 and is on the way back against the main transport direction 5 with the grippers 26 folded up over the other workpiece 2 or 24 in order to be able to grip it for the next positioning process. In Fig. 11 It can also be seen that one of the waste transporters 14, namely here the waste slide bar 16, has been lowered so far towards the support level 7 that it is suitable for the, based on Fig. 12 transport process described below. The waste flap 40 closes in Fig. 11 still the waste disposal opening 12. The removal device 10 has in Fig. 11 the rear end of the first workpiece 2 or 23 to be sawn has already been gripped.

Once the sawing process is finished, the pressure bar 8 can be raised again in order to then, as shown in Fig. 12 shown to continue the process according to the invention. In Fig. 12 the situation is shown in which, following the sawing process described above, the further workpiece 2 or 24 is transported by means of the feed device 9 in the main transport direction 5 to the sawing line 4, while at the same time the waste piece 15 produced by the sawing process is transported by the waste transport device 13 here by means of the waste sliding bar 16 in the main transport direction 5 to the now opened waste disposal opening 12, while at the same time the partial workpiece 11 is transported by the removal device 13, in the main transport direction 5, away from the sawing line 4. To open the waste disposal opening 12, in Fig. 12 the waste flap 40 is folded down. The waste piece 15 produced by the sawing process is transported by the waste transport device 13, here with the waste sliding bar 16, in the main transport direction 5 over the sawing line 4 to the waste disposal opening 12. In this embodiment, the pressure bar 8 is moved together with the waste transport device 13 in the main transport direction 5. As soon as the waste piece 15, as in Fig. 13 shown, has fallen into the waste disposal channel 31, the Waste flap 40 can be swung upwards again so that it, as in Fig. 13 shown, then closes the waste disposal opening 12 again. The feed device 9 can now align the further workpiece 2 or 24 over the sawing line 4 so that the pressure beam 8 can then be lowered again and the next sawing process can be carried out. This situation is in Fig. 13 The process can then be continued to process the corresponding cutting plan.

As an alternative to the waste sliding bar 16, the waste suction grippers 17 can of course also be used as waste transporters 14 in order to transport the generated waste piece 15 in the main transport direction 5 over the saw line 4 to the waste disposal opening 12. In this case, in deviation from the Fig. 11 and 12 then it is not the waste sliding bar 16 but rather the sequence of waste suction grippers 17 that is lowered onto the piece of waste 15 in order to then grip it and transport it accordingly in the main transport direction 5. The use of a waste sliding bar 16 is particularly suitable when particularly thin or small pieces of waste 15 are to be transported. The use of the waste suction grippers 17 instead of the waste sliding bar 16, on the other hand, is particularly suitable when the remaining piece of waste 15 to be transported extends sufficiently far into the area in front of the saw line 4 against the main transport direction 5, so that the waste sliding bar 16 does not extend far enough into this area to be lowered behind the piece of waste 15 to be transported away, as seen in the main transport direction 5.

Based on Fig. 17 to 21 A second embodiment of a panel dividing system 1 according to the invention and its use in a method according to the invention will now be explained. In this case, only the differences from the first embodiment will be discussed and otherwise reference will be made to the previous explanations of the first embodiment. The main difference from the first embodiment in this second embodiment is that the waste transport device 13 has a waste transport drive 18 that is independent of the pressure beam 8 and the feed device 9 and the removal device 13 for moving the waste transporter 14 back and forth parallel to the main transport direction 5 across the saw line 4. Preferably, the waste transport drive 18 is arranged at a distance above the support plane 7, as is also the case here in the second embodiment. In other words, in this second embodiment, the removal device 13 is not moved back and forth together with the pressure beam 8 parallel to the main transport direction 5. Instead, the removal device 13 has its own and independently operating waste transport drive 18. As in the Fig. 17 to 21 As can be clearly seen, this waste transport drive 18 is specifically a rack drive with a rack 42 on which the waste transporter 14, designed here as a raising and lowering waste slide bar 16, is arranged. By moving the rack 42 back and forth together with the waste transporter 14, the waste slide bar 16 can be used, when folded down accordingly, to transport waste pieces 15 in the main transport direction 5 over the saw line 4 to the waste disposal opening 12. Instead of the variant shown here, Of course, a corresponding sequence of waste suction grippers 17 or a single waste suction gripper 17 can be implemented as a waste transporter 14. Of course, other linear drives could also be used to form the waste transport drive 18. The waste transport device 13 with the waste transport drive 18 and the waste transporter 14 are advantageously designed in such a way that they do not collide with the feed device 9. In Fig. 18 This can be seen in concrete terms in that the grippers 26 of the feed device 9, in the folded-down state with the workpiece 2 or 23, can be moved under the waste transport device 13 with its waste transport drive 18 and the upwardly folded waste transporter 14. The grippers 26 are, as is also implemented here, conveniently arranged at a distance from one another in such a way that they can be moved past the waste transport drive 18 with its rack 42.

A further difference from the first embodiment is that in the second embodiment the pressure bar 8 can still be moved in vertical directions away from the support plane 7 and towards it, but not parallel to the main transport direction 5. In the main transport direction 5 the pressure bar 8 of the second embodiment is stationary.

Based on Fig. 17 to 21 A few successive steps in the method for operating this panel dividing system 1 of the second embodiment will now be explained, wherein, among other things, the method according to the invention is also used.

In Fig. 17 the feeding device 9 has a first The workpiece 2 or 23 to be sawn is positioned appropriately above the sawing line 4, and the pressure beam 8 is lowered onto the workpiece 2 or 23 in order to press it against the support plane 7. In this position, the sawing process can then take place using the saw 3 and the saw carriage 41 along the sawing line 4. Meanwhile, the removal device 19, which is designed as in the first embodiment, is already lowered onto the rear end of the workpiece 2 or 23 to be sawn so that it is already gripped. Meanwhile, the workpiece feed device 20 is already transporting the next or further workpiece 2 or 24 in the main transport direction 5 into the working area of the feed device 9.

In Fig. 18 it is shown how this further workpiece 2 or 24 is already aligned on the upwardly moved stop 19, while the removal device 10 has removed the previously produced partial workpiece 11 and the feeding device 9 positions the first workpiece 2 or 23 for a next sawing process with the pressure beam 8 moved upwards on the sawing line 4.

Afterwards, as in Fig. 19 shown, the pressure beam 8 is lowered for the next sawing process and the sawing process is carried out along the sawing line 4, while the feed device 9 has already released the workpiece 2 or 23 and moves back against the main transport direction 5 with the gripper 26 moved upwards in order to fetch the next workpiece 2 or 24. In Fig. 19 the waste transport device 13 is already positioned by means of the waste transport drive 18 in such a way that the waste sliding bar 16 is folded down and, viewed in the main transport direction 5, is positioned behind the workpiece 2 or 23 while it is being sawn. At the same time drives in Fig. 19 the removal device 10 moves back against the main transport direction 5 in order to already grasp the end of the first workpiece 2 or 23 that has been moved over the saw line 4. The waste flap 40 is in Fig. 19 still closed. In Fig. 20 the method according to the invention is then shown again, in which the feed device 9 transports the next or further workpiece 2, 24 in the main transport direction 5, while at the same time the waste transport device 13 pushes the last piece of waste 15 produced over the sawing line 4 in the main transport direction 5 towards the waste disposal opening 12, and while at the same time the removal device 10 transports the last piece of workpiece 11 produced away in the main transport direction 5. The waste flap 40 folded downwards releases the waste disposal opening 12 so that the piece of waste 15 can fall into the waste disposal trough 31. The waste flap 40 is then folded up again and the further workpiece 2 or 24 can be positioned over the sawing line 4 by means of the feed device 9 so that the next sawing process can be carried out accordingly after the pressure beam 9 has been lowered.

The terms first workpiece 23 and further workpiece 24 are chosen here only for the sake of better comprehensibility. It is clear that these can be different starting or intermediate formats during an overall process for dividing an originally existing workpiece 2. For example, a further workpiece 24 can become the first workpiece 23 the next time the method according to the invention is used. The method according to the invention generally only forms a subsection of an overall method or overall process for dividing the originally existing workpiece 2.

Accordingly, various other method steps can be carried out in the overall method or overall process before and/or after carrying out the method according to the invention. The method according to the invention can also be applied several times in succession in the overall method or overall process.

Fig. 21 shows an alternative embodiment of the removal device 10 based on the second embodiment of a panel dividing system according to the invention. Here, it is attached to a robot arm 44 of a robot 43 so that it can move in all three spatial directions. The use of corresponding robots 43 in panel dividing systems 1 is known per se, so that nothing further needs to be said about this. Such robots 43 can of course also be used as the removal device 10 in the first embodiment of the panel dividing system 1 according to the invention.

The Fig. 22 to 24 now show variants of push-off strips 16, which can basically be used in all embodiments of the invention. In Fig. 22 On the rear side of the push-off bar 16, as seen in the transport direction 5, there is a brush bar 45 with which the support plane 7 of the workpiece support table 6 in the area of the saw line 4 is automatically cleaned when a piece of waste 15 is pushed over the saw line 4 with the waste push-off bar 16.

In Fig. 23 a variant of a push-off bar 16 is shown, in which a corresponding brush bar 45 is arranged centrally in the push-off bar 16 in order to achieve the same effect of cleaning the support plane 7 in the area in front of and behind the saw line 4. On the The rear side of this push-off bar 16, seen in the main transport direction 5, is located in Fig. 23 However, there is also an additional stop surface 46, which is shown below using the Fig. 31 and 32 explained, can be used when the push-off bar 16 is used as a stop.

In Fig. 24 a variant of a push-off bar 16 is shown, in which a blow bar 47 with a sequence of nozzles 48 is provided on the back, i.e. behind the push-off bar 16 as seen in the main transport direction 5. By means of these nozzles 48 and the blow bar 47, the support level 7 in front of and behind the saw line 4 can be cleaned by blowing with compressed air. In addition, in Fig. 24 It has also been shown by way of example that teeth 49 can be arranged at the bottom, i.e. on the side of the waste pusher bar 16 facing the support plane 7, which are used when grooves running parallel to the main transport direction 5 are let into the workpiece support table 6, into which, for example, the grippers 26 can engage, as is known per se. By means of the teeth 49, such grooves are then also cleaned at the same time when the pusher bar 16 is lowered to the support plane 7 and pushed in the main transport direction 5 over the saw line 4. In addition, the teeth 49 have the advantage that they reliably prevent very small and/or very thin waste pieces 15 from jamming under the pusher bar 16. Of course, behind the blower bar 47 with its nozzles 48, as in Fig. 23 , also a stop surface 46 on the waste slide bar 16 of the Fig. 24 be trained.

The Fig. 25 to 28 show another variant of a waste sliding bar 16, as used in all embodiments of the invention. In this embodiment, a sequence of toothed strips 28 with teeth 49 extending parallel to the main transport direction 5 is arranged on the back of the push-off strip 16. The toothed strips 28 together with their teeth 49 can be moved parallel to the main transport direction 5 by means of the respective toothed drive 50 relative to the waste push-off strip 16. The teeth 49 of the toothed strip 28 can in turn be introduced into known grooves 53 in the workpiece support table 6, which in turn can already be provided there, for example, for the grippers 26. Fig. 27 shows how, with the pressure beam 8 still lowered, the sliding bar 16 has already been pushed into the area behind the saw line 4, as seen in the main transport direction 5. The teeth 49 of the toothed bar 28 are already in the grooves 53 in the workpiece support table 6. If the saw is now moved along the saw line 4 to carry out the sawing process, those teeth 49 that the saw 3 has already passed can already be moved in the main transport direction 5 into the grooves 53 in the workpiece support table 6. Fig. 28 shown position under the waste piece 15. If all teeth 49 are attached to a single toothed strip 28, this is only possible when the saw 3 has passed all teeth 49. In preferred variants, the toothed strips 28 are not continuous, but separated from each other and each designed to be displaceable with one of the toothed drives 50, so that they always have only individual teeth 49 or a group of teeth 49. In these embodiments, the teeth 49 that the saw 3 has already passed can then be moved into the Fig. 28 shown position under the waste piece 15, while the sawing process 3 is not yet finished. In any case, these variants can, as shown in Fig. 28 shown, prevent very narrow waste pieces 15 from entering the gap of the can fall into the saw line 4. If the very narrow waste pieces 15 fall over after they have been completely separated from the partial workpiece 11, they fall onto the teeth 49 and can be transported to the waste disposal opening 12 by means of the waste sliding bar 16 and its teeth 49 and there pushed off the teeth 49 by means of the toothed drives 50 and the waste sliding bar 16 and thus thrown into the waste disposal opening 12.

The Figs. 29 and 30 show an extended version of the waste transport drive 18 of the second embodiment according to the Fig. 17 to 21 . In the variant according to the Figs. 29 and 30 the waste transport drive 18 is not stationary, but mounted on a drive carriage 51. The drive carriage 51, like the gripper carriers 52, is mounted so that it can move in the guide rails 25 parallel to the main transport direction 5. In this variant, the possible travel path or the range of the waste transport device 13 and its waste transporter 14 parallel to the main transport direction 5 is significantly extended. This means that not only waste pieces 15 but also usable remaining pieces of the workpiece 2 can be pushed out, as is shown in the Figs. 29 and 30 This essentially corresponds to the variants of the second embodiment already described. The only extension is that before the waste transporter 14 or, in this case, the waste sliding bar 16, is lowered, the drive carriage 51 first moves back a corresponding distance in order to then move forward in the main transport direction 15 after the waste transporter 14 or the waste sliding bar 16 has been lowered accordingly, as can be seen from Figs. 29 and 30 results.

For the sake of completeness, this variant of the second embodiment according to Figs. 29 and 30 on it It should be noted that two or more different types of waste transporters 14 can of course also be used here, e.g. in the form of a push-off bar 16 and a corresponding sequence of waste suction grippers 17. Of course, the waste transporter 14 in these design variants can also have only a corresponding sequence of waste suction grippers 17 or even just a single waste suction gripper 17 instead of the waste push-off bar 16.

In the Fig. 31 and 32 It is now shown by way of example that in both embodiments the respective push-off bar 16 can also be used with its stop surface 46 in a position lowered to the support level 7 as a stop for further workpieces 2 or 24 transported in the main transport direction 5. In this way, the stops 19 can also be replaced, so that they do not have to be present separately. Legend to the reference numbers: 1 Panel cutting machine 27 Cross stop 2 workpiece 28 Tooth strip 3 saw 29 Onward transport track 4 Saw line 30 Return transport track 5 Main transport direction 31 Waste disposal channel 6 Workpiece support table 32 Pressure beam support 7 Support level 33 Guide rail 8th Pressure bar 34 Cross aligner 9 Feeding device 35 Cross aligner guide 10 Removal device 36 Extraction nozzle 11 Partial workpiece 37 Guardrail 12 Waste disposal opening 38 Guide carriage 39 Guide plate 13 Waste transport device 40 Waste flap 41 Saw carriage 14 Waste transporter 42 Rack and pinion 15 Waste piece 43 robot 16 Waste slide bar 44 Robot arm 17 Waste suction gripper 45 Brush strip 18 Waste transport drive 46 Stop surface 19 attack 47 Blow bar 20 Workpiece feeding device 48 jet 49 Tooth 21 Table strips 50 Gear drive 22 Cutting line 51 Drive car 23 first workpiece 52 Gripper carrier 24 another workpiece 53 Groove 25 Guide rail 26 Gripper

Claims (16)

Panel dividing system (1) for dividing workpieces (2) which consist of individual panels and/or panel stacks, the panel dividing system (1) comprising: - a saw (3) for sawing the workpieces (2) along a saw line (4) and - a workpiece support table (6) extending in the area in front of and behind the saw line (4), as seen in a main transport direction (5) of the panel dividing system (1), with a support plane (7) on which the workpieces (2) can be placed for dividing and - a lifting and lowering driven pressure beam (8) for pressing the workpieces (1) onto the support plane (7) of the workpiece support table (6) in the area of the saw line (4) and - a feeding device (9) mounted in front of the saw line (4) and at a distance above the support plane (7) in the main transport direction (5) so as to be movable back and forth at least parallel to the main transport direction (5) for transporting the workpieces (2) to be sawn in the main transport direction (5) towards the saw line (4) and - a sawing device arranged behind the sawing line (4) in the main transport direction (5) and movable back and forth at least parallel to the main transport direction (5) at a distance above the support plane (7) stored removal device (10) for removing partial workpieces (11) produced by sawing the workpieces (2) in the main transport direction (5) away from the sawing line (4) and - a preferably closable waste disposal opening (12) arranged behind the sawing line (4) as seen in the main transport direction (5), characterized in that the panel dividing system (1) additionally has a waste transport device (13) mounted at a distance above the support plane (7) so as to be movable back and forth at least parallel to the main transport direction (5) with at least one waste conveyor (14) which can be moved back and forth parallel to the main transport direction (5) and across the sawing line (4) for transporting waste pieces (15) across the sawing line to the preferably closable waste disposal opening (12). Panel dividing system (1) according to claim 1, characterized in that the feeding device (9) and the removal device (10) and the waste transport device (13) can be driven independently of one another, preferably by means of their own motor drives. Panel dividing system (1) according to claim 1 or 2, characterized in that the feeding device (9) and the removal device (10) and the waste transport device (13) can be driven simultaneously, preferably by means of their own motor drives. Panel dividing system (1) according to one of claims 1 to 3, characterized in that the waste transport device (13) has two differently designed waste transporters (14) for transporting the waste pieces (15) across the sawing line (4) to the preferably closable waste disposal opening (12). Panel dividing system (1) according to one of claims 1 to 4, characterized in that the waste conveyor (14) or, in the case of two differently designed waste conveyors (14), one of the waste conveyors is designed as a waste sliding bar (16), preferably driven so as to be able to be raised and lowered, extending longitudinally parallel to the saw line (4). Panel dividing system (1) according to claim 5, characterized in that a stop surface (46) is formed on a rear side of the push-off bar (16), seen in the main transport direction (5). Panel dividing system (1) according to one of claims 1 to 6, characterized in that the waste conveyor (14) or, in the case of two differently designed waste conveyors (14), one of the waste conveyors (14) is designed as a waste suction gripper (17), preferably driven so as to be raised and lowered, or as a sequence of waste suction grippers (17) arranged at a distance from one another, preferably driven so as to be raised and lowered, aligned parallel to the saw line (4). Panel dividing system (1) according to one of claims 1 to 7, characterized in that the pressure beam (8) is mounted so as to be movable back and forth across the saw line (4) parallel to the main transport direction (5) and the at least one waste conveyor (14) is attached to the pressure beam (8). Panel dividing system (1) according to one of claims 1 to 7, characterized in that the waste transport device (13) has a waste transport drive (18) which is independent of the pressure beam (8) and of the feed device (9) and of the removal device (10) for moving the waste conveyor (14) back and forth parallel to the main transport direction (5) over the saw line (4), wherein it is preferably provided that the waste transport drive (18) is arranged at a distance above the support plane (7). Panel dividing system (1) according to one of claims 1 to 9, characterized in that , seen in the main transport direction (5), in the area in front of the saw line (4) and at a distance from the saw line (4) in the workpiece support table (6) at least one stop (19) is arranged, which can be lowered below the support plane (7) and raised above the support plane (7) and is motor-driven. Panel dividing system (1) according to one of claims 1 to 10, characterized in that the panel dividing system (1), seen in the main transport direction (5), in front of the sawing line (4) additionally has a workpiece feeding device (20), preferably integrated in the workpiece support table (6), with which workpieces (2) can be transported in the main transport direction (5) into a working area of the feeding device (9). Panel dividing system (1) according to claims 10 and 11, characterized in that the workpieces (2) can be moved with the workpiece feed device (20) in the main transport direction (5) against the stop (19) raised above the support plane (7). Panel dividing system (1) according to one of claims 1 to 12, characterized in that the workpiece support table (6) is divided into several table strips (21) arranged next to one another parallel to the main transport direction (5), each table strip (21) being assigned at least one separate feed device (9) and one separate removal device (10) and one separate waste transport device (13). Method for dividing workpieces (2) which consist of individual plates and/or plate stacks, with a plate dividing system (1), the plate dividing system (1) comprising: - a saw (3) for sawing the workpieces (2) along a saw line (4) and - a workpiece support table (6) extending in the area in front of and behind the saw line (4), as seen in a main transport direction (5) of the panel dividing system (1), with a support plane (7) on which the workpieces (2) can be placed for dividing and - a lifting and lowering driven pressure beam (8) for pressing the workpieces (2) onto the support plane (7) of the workpiece support table (6) in the area of the saw line (4) and - a feeding device (9) mounted in front of the sawing line (4) so as to be movable back and forth at least parallel to the main transport direction (5), as seen in the main transport direction (5), for transporting the workpieces (2) to be sawn in the main transport direction (5) towards the sawing line (4) and - a removal device (13) arranged behind the sawing line (4) as seen in the main transport direction (5) and mounted so as to be movable back and forth at least parallel to the main transport direction (5) for removing partial workpieces (11) produced by sawing the workpieces (2) in the main transport direction (5) away from the sawing line (4) and - a waste disposal opening (12) arranged behind the saw line (4) in the main transport direction (5), preferably closable, wherein in the method at least a first workpiece (2, 23) is transported by means of the feed device (9) in the main transport direction (5) to the saw line (4) and positioned lying on the saw line (4), and then the first workpiece (2, 23) is sawn by the saw (3) along the saw line (4) into a waste piece (15) and a partial workpiece (11), characterized in that following this sawing operation, at least one further workpiece (2, 24) is transported by means of the feed device (9) in the main transport direction (5) to the sawing line (4), while at the same time the workpiece (2, 24) The waste piece (15) produced during the sawing process is transported by a waste transport device (13) of the panel dividing system (1) in the main transport direction (5) to the preferably closable waste disposal opening (12), while at the same time the partial workpiece (11) is transported away from the sawing line (4) by the removal device (13) in the main transport direction (5). Method according to claim 14, characterized in that the waste piece (15) produced by the sawing process is transported by the waste transport device (13) of the panel dividing system (1) in the main transport direction (5) over the sawing line (4) to the preferably closable waste disposal opening (12). Method according to claim 14 or 15, characterized in that the method is carried out with a panel dividing system (1) according to one of claims 1 to 12.

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