EP3090846A1 - Board machining device - Google Patents

Abstract

A plate processing plant (10) comprises: a machine table (12) on which a plate-shaped workpiece (34) can be machined; a feed table (16) disposed on a first side of the machine table (12); a removal table (20) disposed on a second side of the machine table (12) opposite the first side; and at least one first transport device (32) which can transport a workpiece (34) from the feed table (16) in the direction of the machine table (12) (transport direction 36). It is proposed that it has a second transport device (44), which is separate from the first transport device (32) and by means of an engagement section (46) a workpiece (34) lying at least partially on the machine table (12) from the machine table (12). in a direction (36) away from the feed table (16), the second transport means (44) having a rest position in which the engaging portion (46) is below a top (30) of the feed table (16) and the machine table (12). is arranged, and has an operating position in which the engaging portion (46) at least partially above the top (30) of the feed table (16) and the machine table (12) is arranged.

Description

The invention relates to a plate processing plant according to the preamble of claim 1.

From the market plate processing plants are known, for example as panel saws. With these large-format plate-shaped workpieces can be divided by a sub-table circular saw. For this purpose, the plate-shaped workpieces are fed by a first transport device, namely a program pusher with existing collets on this, from a feed table arranged in or below a machine table saw. On the side facing away from the feed side of the machine table, a discharge table is present, on which an operator stands, the manually machined, so split workpiece from the machine table to the unloading table. An example of this is the DE 10 2010 010 746 A1 ,

A known from the market program slider includes a Ausschubvorrichtung that is activated when pushing the last workpiece on the unloading table. Furthermore, there is usually a waste flap in the area of the discharge table of an automatic plant. Also known for example from the DE 10 2005 020 979 A1 to use a lower finger of a collet to push off a workpiece. Finally, the reveals EP 2 422 944 A1 a largely automatic panel sizing unit.

The present invention has an object to provide a plate processing plant, which works very efficiently and in which the safety of the operator is particularly high.

This object is achieved by a plate processing system having the features of claim 1. Advantageous developments of the invention are specified in subclaims. Features important to the invention are further set forth in the following description and in the accompanying drawings. These features may be important to the invention in various combinations as well as in isolation.

According to the invention, the plate processing installation has a second transport device, which is separate from the first transport device and can transport a workpiece lying on the machine table at least in regions from the machine table in a direction away from the feed table by means of an engagement section.

In the present case, "separate" means, for example, that the second transport device is structurally independent of the first transport device and insofar can preferably be operated completely independently of this. The second transport device has a rest position, in which the engaging portion is arranged below the top of the feed table and the machine table. Furthermore, it has an operating position in which the engaging portion is arranged at least partially above the top of the feed table and the machine table.

The plate processing system according to the invention has the advantage that even narrow strips that lie on the machine table, no longer have to be manually pulled away by an operator from the machine table, but automatically be moved away from the second transport from the machine table in the direction of the unloading table. As a result, it is no longer necessary for the first transport device to move such a workpiece from the machine table in the direction of the removal table.

Instead, the first transport device can already drive back again and grab a new workpiece and transport it to the machine table, while the second transport device moves the workpiece lying on the machine table, for example, in the direction of the removal table. Thus, not only the occupational safety of the operator who operates the plate processing plant is increased, but it also increases the cycle times of the plate processing system according to the invention, so that more workpieces can be processed in a shorter time. This is even more so when the Panel processing plant is set up for fully automatic operation.

In a first development, it is proposed that the second transport device comprise at least one base section which is movable in and counter to the transport direction and at least one slide section which is at least indirectly fixed and vertically movable and which belongs to or forms the engagement section. Such a second transport device is structurally simple and works very reliable. An engaging portion formed as a slider portion is basically the simplest configuration because, for example, no clamping mechanism or the like is required.

In a further development, it is proposed that the slide portion has at least one recess through which, when the second transport device is in the rest position, a support element of the machine table or the feed table can pass. This is particularly advantageous when the slide portion, for example, for reasons of stability, has an area designed as a substantially horizontal plate area. By means of the recess provided according to the invention, for example, a support element of the machine table or of the feed table can remain unchanged, so that the second transport device can also be retrofitted, for example, to existing plate processing systems. A support element is understood to mean, for example, an air outlet nozzle of an air cushion table or a roller of a roller table.

It is further proposed that the slider portion comprises a support arm which is pivotally mounted on the base portion and kinematically coupled to a stationary control portion such that it is moved upward in a transport direction of the base portion and downward in a direction of movement of the base portion , Thus can be dispensed with a separate drive for the pivoting of the support arm or the movement of the slide portion. Rather, the movement of the base portion automatically leads to the corresponding movement of the support arm and thus also of the slide portion.

It is also proposed that the stationary tax area comprises a backdrop. Such a backdrop is inexpensive and very robust.

It is also proposed that the base section is connected to a flexible drive element, in particular a belt or a chain, which is driven by a drive, in particular an electric motor. Again, this is an inexpensive and extremely robust type of drive for the movement of the base section.

It is possible that the second transport device has at least two partial transport devices arranged side by side in the transport direction and operated in the same direction, each having a movable base section and a respective pivotable holding arm. As a result, the possible area at which the second transport device acts on the workpiece, is increased, whereby the force which, during transport of the workpiece by the second transport means on this Piece is applied, is reduced. Overall, this embodiment makes the transport of the workpiece by the second conveyor more reliable.

In a further development, it is proposed that one of the sub-transport means comprises a drive which is coupled by means of a coupling means with another of the sub-transport means so that it also drives the other sub-transport means. This has the advantage that only a single drive is required, which saves costs. On the other hand, this has the advantage that, in spite of a single drive, a synchronous movement of the partial transport devices is ensured, whereby a "straight" transport of the workpiece is ensured by the second transport device.

It is also proposed that at least two partial transport devices have a common slide portion with two holding arms, by means of which the slide portion is pivotally attached to the base portions of the partial transport means. Such a slide portion is therefore basically linear in shape and thus allows a distributed over a larger area of a rear edge of the workpiece attacking the slide portion, whereby damage to the workpiece can be avoided.
A further particularly advantageous embodiment of the plate processing system according to the invention provides that the second transport device has at least one stop portion, on which a workpiece moved by the first transport device in the transport direction can be applied, which in the rest position of Transport device is arranged below the top of the feed table and the machine table, and which is arranged in the operating position of the transport device at least partially above the top of the feed table and the machine table.

Thus, the second transport device is assigned an additional function: It also serves as a stop for aligning a plate-shaped workpiece, which is transported by the first transport device from the feed in the direction of the machine table. As a result, the plate-shaped workpiece is aligned with its front edge seen in the transport direction exactly parallel to a cutting line when it rests against the abutment portion of the second transport device.

In addition, this makes it possible that when the workpiece abuts the abutment portion, the collets a program slider of the first transport device reliably approach the rear edge of the workpiece viewed in the transport direction and can grab this.
In a further development, it is proposed that the stop section is arranged on the holding arm or on the holding arms. This is particularly simple and inexpensive to implement.

In a further development of this, it is proposed that the stop section is formed by a vertical edge formed on the holding arm and vertical in the operating position of the second transport device. This is maximally inexpensive and very robust.

It is also possible that the second transport device has at least one lifting element with which an at least partially located in a kerf remaining workpiece can be lifted out of the kerf. As a result, the reliability of the panel splitter is further improved because even very narrow residual workpieces that can get into an unfavorable case partially into the kerf, and therefore can not be easily detected and removed by the attacking section, are first raised from the Sägeschlitz, so that They can then be reliably transported away.

In a further development, it is proposed that the lifting element comprises a lifting section having an inclined upper side, which is received in the operating position of the second transport device in a groove running in the transport direction in the machine table. This is a very easy to implement variant of a lifting element. In this case, the collet grooves, which are present anyway in a conventional machine table, can be used to receive the lifting section.

Furthermore, the lifting element can be arranged on an underside of the engaging portion at its projecting edge. Thus, the excavated by the lifting element from the saw slot residual workpiece is removed immediately after excavation, whereby the panel splitter works very efficient.

Figur 1

eine schematische Seitenansicht auf eine erste Ausführungsform einer Plattenbearbeitungsanlage mit einer zweiten Transporteinrichtung, die sich in einer Ruhestellung befindet;

Figur 2

eine Darstellung ähnlich Figur 1 der Plattenbearbeitungsanlage, wobei sich die zweite Transporteinrichtung in einer ersten Betriebsstellung befindet;

Figur 3

eine Darstellung ähnlich Figur 1 der Plattenbearbeitungsanlage, wobei sich die zweite Transporteinrichtung in einer zweiten Betriebsstellung befindet;

Figur 4

eine perspektivische detaillierte Darstellung der zweiten Transporteinrichtung der Plattenbearbeitungsanlage von Figur 1;

Figur 5

eine perspektivische Darstellung der zweiten Transporteinrichtung von Figur 4, eines Zuführtisches und eines Maschinentisches;

Figur 6

eine Seitenansicht auf die Komponenten von Figur 5, wobei zusätzlich eine Abfallklappe im heruntergeklappten Zustand dargestellt ist und wobei sich die zweite Transporteinrichtung in einer Ruhestellung befindet;

Figur 7

eine Darstellung ähnlich Figur 6, wobei die Abfallklappe im hochgeklappten Zustand dargestellt ist und wobei die zweite Transporteinrichtung etwas aus der Ruhestellung heraus bewegt ist;

Figur 8

eine Seitenansicht auf ein Detail der zweiten Transporteinrichtung von Figur 7;

Figur 9

eine Darstellung ähnlich Figur 7, wobei sich die zweite Transporteinrichtung in einer ersten Betriebsstellung befindet;

Figur 10

eine Darstellung ähnlich Figur 7, wobei sich die zweite Transporteinrichtung in einer zweiten Betriebsstellung befindet;

Figur 11

eine Darstellung ähnlich zu Figur 1 einer zweiten Ausführungsform einer Plattenbearbeitungsanlage, wobei sich die zweite Transporteinrichtung in einer Ruhestellung befindet,

Figur 12

eine Darstellung ähnlich Figur 11, wobei sich die zweite Transporteinrichtung in einer ersten Betriebsstellung befindet;

Figur 13

eine Darstellung ähnlich Figur 11, wobei sich die zweite Transporteinrichtung in einer zweiten Betriebsstellung befindet

Figur 14

eine Darstellung ähnlich zu Figur 7 einer dritten Ausführungsform einer Plattenbearbeitungsanlage, wobei sich die zweite Transporteinrichtung in einer ersten Betriebsstellung befindet;

Figur 15

eine Darstellung ähnlich zu Figur 14, wobei sich die zweite Transporteinrichtung Zeit in einer zweiten Betriebsstellung befindet;

Figur 16

eine perspektivische Darstellung der Plattenbearbeitungsanlage von Figur 14, wobei sich die zweite Transporteinrichtung in der ersten Betriebsstellung befindet;

Figur 17

einen schematischen teilweisen Schnitt durch einen Bereich der Plattenbearbeitungsanlage von Figur 14, wobei sich die zweite Transporteinrichtung in der ersten Betriebsstellung befindet; und

Figur 18

eine perspektivische Darstellung eines Bereichs der Plattenbearbeitungsanlage von Figur 14.

Hereinafter, embodiments of the invention will be explained with reference to the accompanying drawings. In the drawing show:

FIG. 1

a schematic side view of a first embodiment of a plate processing plant with a second transport device, which is in a rest position;

FIG. 2

a representation similar FIG. 1 the plate processing plant, wherein the second transport device is in a first operating position;

FIG. 3

a representation similar FIG. 1 the plate processing plant, wherein the second transport device is in a second operating position;

FIG. 4

a perspective detailed view of the second conveyor of the plate processing plant of FIG. 1 ;

FIG. 5

a perspective view of the second transport device of FIG. 4 , a feed table and a machine table;

FIG. 6

a side view of the components of FIG. 5 , wherein additionally a waste flap in the folded down state is shown and wherein the second transport device is in a rest position;

FIG. 7

a representation similar FIG. 6 wherein the waste flap is shown in the folded-up state and wherein the second transport device is slightly moved out of the rest position;

FIG. 8

a side view of a detail of the second transport device of FIG. 7 ;

FIG. 9

a representation similar FIG. 7 , wherein the second transport device is in a first operating position;

FIG. 10

a representation similar FIG. 7 , wherein the second transport device is in a second operating position;

FIG. 11

a representation similar to FIG. 1 a second embodiment of a plate processing plant, wherein the second transport device is in a rest position,

FIG. 12

a representation similar FIG. 11 , wherein the second transport device is in a first operating position;

FIG. 13

a representation similar FIG. 11 , wherein the second transport device is in a second operating position

FIG. 14

a representation similar to FIG. 7 a third embodiment of a plate processing plant, wherein the second transport device is in a first operating position;

FIG. 15

a representation similar to FIG. 14 , wherein the second transport device time is in a second operating position;

FIG. 16

a perspective view of the plate processing plant of FIG. 14 , wherein the second transport device is in the first operating position;

FIG. 17

a schematic partial section through an area of the plate processing plant of FIG. 14 , wherein the second transport device is in the first operating position; and

FIG. 18

a perspective view of a portion of the plate processing plant of FIG. 14 ,

Functionally equivalent elements and regions bear the same reference numerals in all figures. Moreover, for reasons of clarity, the reference symbols of all visible elements and regions are not entered in all figures.

In FIG. 1 a plate processing plant as a whole carries the reference numeral 10. It comprises a machine table 12 which is elevated by means of feet 14 on a floor. In FIG. 1 To the right of the machine table 12 is a feed table 16 which is formed by a plurality of rollers 18.

To the plate processing system 10 also includes a left of the machine table 12 existing unloading table 20, which may be as well as the machine table 12, for example, designed as an air cushion table. It is understood that in FIG. 1 only part of the feed table 16 and only part of the unloading table 20 are shown in the drawing. Above the machine table 12 is a Pressure bar available, which is not shown in the drawing. This can be moved vertically and clamp a lying on the machine table 12 workpiece against this, whereby it is securely fixed during processing.

In the panel processing system 10 is in the present case a panel saw. It therefore comprises a sawing device 22, which in the present case is designed as a under-counter circular saw with a vertical saw blade 24 and a horizontal axis of rotation 26 of the saw blade 24. Through a slot 28, the saw blade 24 can be moved upwardly over an upper surface 30 of the machine table 12, so that it can machine a lying on the machine table 12 workpiece. The tops of the machine table 12, feed table 16 and unloading table 20 are present all on the same level. This is in FIG. 1 indicated by a dashed line 30.

Furthermore, the plate processing system 10 includes a first transport device 32, which can transport a workpiece 34 from the feed table 16 in the direction of the machine table 12 (transport direction 36). This first transport device 32 comprises a program pusher 38 which is perpendicular to the plane of the drawing FIG. 1 extends and which can be moved by a motor drive, not shown, both in the transport direction 36 and in the opposite direction. On the program pusher 38 a plurality of collets 40 is fixed, which jaws (without reference numerals) have, between which a rear edge 42 of the workpiece 34 can be clamped.

To the plate processing plant 10 but also includes a second transport device 44, the exact structure will be explained in more detail below. In FIG. 1 is drawn by the second transport device 44 only designed as a slide portion engaging portion 46 and a support arm 48 which the slider portion 46 with a in FIG. 1 not subscribed base section connects. The slide portion 46 is rigidly connected to the holding arm 48, the holding arm 48 relative to the base portion, however, pivotally connected.

In FIG. 1 the second transport device 44 is shown in a rest position, in which the slide portion 46 is disposed below the top 30 of the feed table 16 and the machine table 12. The workpiece 34 and the first transport device 32 are both located in a relatively right region of the feed table 16.

In FIG. 2 the workpiece 34 is no longer, as in FIG. 1 on the feed table 16, but on the machine table 12, where it has passed through the first conveyor 32. There, the collets 40 of the first conveyor 32 have released the workpiece 34, and the first conveyor 32 has then been moved back against the transport direction 36 to grip and transport another workpiece (not shown).

The second transport device 44 is no longer in the rest position but in a first operating position, in which the slide portion 46 above the top 30 of the feed table 16 and the machine table 12 is arranged. How out FIG. 3 it can be seen, the second transport device 44 was there moved by motor in the transport direction 36, so that the slider portion 46 came into contact with the rear edge 42 of the workpiece 34, and then the workpiece 34 has been pushed from the machine table 12 to the unloading table 20. The slider portion 46 and the entire second conveyor 44 are located in FIG. 3 Thus, in a second operating position, in which the slide portion 46 is also disposed above the top 30 of the feed table 16 and the machine table 12, but was additionally moved in the transport direction 36 for pushing out of the workpiece 34 on the unloading table 20.

The function of the second transport device 44 is particularly helpful, for example, in a so-called scratch cut at a rear edge 42 of the workpiece 34. In such a scratch cut, the workpiece is positioned relative to the saw blade 24 such that a material width at the rear edge 42 is removed by the sawing process, which is smaller than the thickness of the saw blade 24. Thus, only the rear edge 42 is processed. This is only possible if after fixing the workpiece by the pressure bar and before machining the collets 40 have released the rear edge 42, the workpiece 34 is thus no longer held by the program pusher 38 during processing by the saw 22.

Especially in such a case, after the scraping cut, the machined workpiece 34 can be moved by the second transport device 44 in the direction of the removal table 20, while the first transport device 32 already moves backwards against the transport direction 36 is to get another workpiece and to move towards the machine table 12 out. This saves time. In the case of manual handling of the workpieces, the operator, who is usually standing in the area of the removal table 20, no longer has to move into the area of the machine table 12 to pull the workpiece 34 from there onto the removal table 20. As a result, the reliability of the operator is improved. But also in so-called. "Unmanned" Plattenaufteilanlagen, which are set up for an at least largely or even completely automatic operation, considerable time is saved.

Now, the components of the second conveyor 44 will be described with reference to FIGS FIGS. 4 and 5 explained in more detail: it can be seen that the slide portion 46 as elongated and perpendicular to the plane of the Figures 1-3 extending beam is formed, which has approximately the cross section of a downwardly open C-profile. The length of the slide portion 46 corresponds approximately to the extent (viewed transversely to the transport direction 36) of a cutting region of the sawing device 22. In the upper side of the slide portion 46, a plurality of recesses 50 are present. By this, when the second transport device 44 according to the FIGS. 1 and 5 is in its rest position, which act as supporting elements rollers 18 of the feed table 16 pass. This is especially out FIG. 5 seen.

One recognizes further from the FIGS. 4 and 5 in that the second transport device 44 has two partial transport devices 44 A and 44 B arranged side by side and viewed in the direction of transport 36 and each having a holding arm 48 A and 48 B have, which are rigidly connected to the common slide portion 46. The sub-transport device 44 A and 44 B are constructed largely identical, so that for reasons of clarity in the figures not all two reference characters 44 A and 44 B are registered. The following are the components of the FIGS. 4 and 5 right sub-transport means 44 A, wherein for simplicity, the index A will be omitted in these components.

The sub-transport device 44 A comprises a previously mentioned slide-like base portion 52 which is held by a linear guide 54 on a stationary support structure 56 in the transport direction 36 movable. As mentioned above, the support arm 48 is pivotally supported on the base portion 52 by means of hinge pins 58.

At the stationary support structure 56, a drive 60 is attached in the form of an electric motor. This drives a circulating chain 62, which in turn is connected to the movable base portion 52. An in FIG. 4 invisible drive wheel of the chain 62 of the sub-transport device 44 A is connected by a coupling means forming a coupling shaft 64 with a likewise not visible drive wheel of the chain 62 of the sub-transport device 44 B. In this way, the electric motor 60 drives not only the chain 62 of the sub-transport 44 A but also the corresponding chain of the sub-transport 44 B, and the two chains 62 of the sub-transport devices 44 A and 44 B are kinematically direct and rigid coupled together.

The stationary support structure 56 further comprises on both sides of the base portion 52 in each case a link 66, which forms a stationary control area. Each of the scenes 66 cooperates with a guide gear 68 which is fixed to a box-like hinge portion 69 of the support arm 48. As in particular from FIG. 8 it can be seen, the gate 66 in an outermost right in the figures end portion an oblique first gate portion 70, to which in the figures to the left a substantially horizontal second gate section 72 connects.

For example FIG. 6 it can also be seen that the holding arm 48 has a slight bend 74. A portion of the support arm 48 located in the figures to the right of the kink 74 is shown in the example in FIG FIG. 6 shown rest position horizontally, whereas in this rest position located on the left of the kink 74 area or portion of the support arm 48 is slightly obliquely downward.

Like from the FIGS. 6 and 7 it can be seen, in the embodiment shown there, a region of the unloading table 20 immediately following the machine table 12 is designed as a waste flap 75 which pivots downwards ( FIG. 6 ) or horizontally ( FIG. 7 ).

A movement of the second conveyor 44 is controlled as follows (see FIGS. 6 to 10 ): FIG. 6 shows the second transport device 44 in its rest position, in which the base portion 52 is in its outermost rightmost position in the figures and in which the slide portion 46 below the top 30 of the machine table 12 and feed table 16 is arranged. The Guide gear 68 is located in the region of the extreme right end of the first link portion 70, whereby the hinge portion 69 is pivoted by the weight of the support arm 48 maximum down.

By driving the electric motor 60, the chain 62 is set in motion, whereby the base portion 52 is moved in the figures to the left. As a result, the guide wheel 68 runs on the inclined first link portion 70 upwards, whereby the joint portion 69 and with it also the support arm 48 are pivoted about the axis of the hinge pin 58 in the clockwise direction. This is in the FIGS. 7 and 8 shown.

When the guide gear 68 has reached the end of the first link section 70 and has arrived at the second, horizontal link section 72, the hinge section 69 is pivoted to a maximum. In this first operating position, the slide portion 46 is already arranged above the top 30 of the feed table 16 and the machine table 12, but it is still in the figures just to the right of the machine table 12th

By further operation of the electric motor 60, the base portion 52 is moved further to the left in the figures until the base portion 52 and the hinge portion 69 in the in FIG. 10 shown extreme left end position have arrived. In this second operating position of the second transport device 44, the slide section 46 is located at the extreme left edge of the machine table 12. A workpiece previously present on the machine table 12 would thus have been completely moved from the machine table 12 into the region of the waste flap 75.

By the guide gear 68 so the base portion 52 is kinematically coupled to the stationary control area formed by the link 66 so that it upon movement of the base portion 52 in the transport direction 36 through the gate 66 upwards and upon movement of the base portion 52nd is moved counter to the transport direction 36 by the weight of the slider portion 46 and the support arm 48 and by an upper portion of the oblique first slide portion 70 down.

It is understood that the plate processing system does not necessarily have to be a panel saw, but any other type of plate processing plant is possible. For example, the processing can also be done by means of a milling device or the like. Further, in addition to or as an alternative to the program pusher, the first transport device may be configured differently, for example comprising a driven roller conveyor, a belt conveyor, a robot, a suction portal, or the like.

Further, the second transport means may comprise a slide portion which is not located below in the rest position, but so far above the top of the feed table and the machine table, that in this rest position the transport of a lying on the feed table and / or the machine table workpiece the first transport device is not obstructed. It is also conceivable that a plurality of second transport means are provided, which are arranged side by side and are operable independently of each other to independently convey adjacent workpieces from the machine table can. Also the unloading table may include a powered roller conveyor, a belt conveyor, a robot, a suction portal, or the like.

The in the FIGS. 11-13 embodiment shown is basically similar to those of Figures 1-10 , However, in the embodiment of the FIGS. 11-13 on the hinge portion 69 of the support arm 48, a stopper portion 76 is present, which is formed by a formed on the hinge portion 69 and in the first and second operating positions of the second conveyor 44 vertical edge.

Like from the FIGS. 11-13 can be seen, is the vertical edge 76 in the in FIG. 11 shown rest position of the second conveyor 44 below the top 30 of the machine table 12 and the feed table 16, whereas said vertical edge 76 in the in FIG. 12 shown first operating position and in the in FIG. 13 shown second operating position of the second transport device 44 above the top 30 of the machine table 12 and the feed table 16 is located. On the vertical edge 76, a workpiece 34 moved by the first transport device 32 in the transport direction 36 can be applied.

The in the Figures 14-18 embodiment shown is also basically similar to those of Figures 1-10 , but of course also with that of FIGS. 11-13 be combined. However, a plurality of spaced apart lifting elements 78 are arranged in the region of the projecting edge of the slide portion 46. As in particular from FIG. 16 it can be seen, the lifting elements 78 are seen in the direction of the kerf 28 at such positions on the slide portion 46th arranged where in the top of the machine table 12 so-called "collet grooves" 80 extend in the transport direction 36.

These collet grooves 80 are normally used in a movement of a workpiece by means of the first transport device 32 to the kerf slot 28 or even beyond a lower clamping finger (without reference numerals, but in FIG. 1 schematically drawn) of a collet 40 record. How out FIG. 16 As can be seen, therefore, the collet grooves 80 extend at least as far as the kerf slot 28, but in the present case even on both sides of the kerf slot 28 in the upper side of the machine table 12.

How out FIG. 18 As can be seen, the lifting elements 78 comprise a block-like and in the side view in the present embodiment rectangular base portion 82 (in principle, other cross-sections are possible), which is arranged on a bottom 84 of the slide portion 46, in this case by means of a screw connection, that it with a Leading edge 86 is aligned with a front edge 88 of the slide portion 46 in the vertical direction. From the base portion 82 extends a wedge-shaped Aushebeabschnitt 90, which has an oblique, for example, at an angle of 30-45 ° extending top 92 which tapers to the projecting end of a lifting element 78.

How out FIG. 17 shows, it is possible by means of the lifting elements 78, a resulting in a splitting operation narrow residual workpiece 94, which is partially sunken into the kerf 28 and therefore from Slider portion 46 can not be easily pushed away by means of the sloping top 92 of the Aushebeabschnitts 90 from the kerf 28. For this purpose, the residual workpiece 94 slides along the top 92 of a lifting element 78, whereby it is moved upwards. Thereafter, it may be conveyed away from the machine table 12 by means of the leading edge 86 of the lifting members 78 and the leading edge 88 of the slide portion 46. During the conveying away, the largest part of a lifting element 78, namely that part which lies below the front edge 86, is accommodated in the respective collet groove 80, ie arranged below the upper side 30 of the machine table 12.

It is understood that this basic function of excavating a residual workpiece 94 from the kerf 28 is also possible when the excavation elements 78 do not have a vertical leading edge 86. Further, the base portion 82 may not be block-like, but only consist of a narrow vertical sheet metal or the like, which has on its upper side a mounting portion for attachment to the slider portion 46. As material for the lifting element 78 is both metal and plastic in question. If the slide portion 46 made of plastic, the lifting elements 78 could be made in one piece with this.

Claims (15)

A plate processing system (10), comprising: a machine table (12) on which a plate-shaped workpiece (34) can be machined; a feed table (16) disposed on a first side of the machine table (12); a removal table (20) disposed on a second side of the machine table (12) opposite the first side; and at least one first transport device (32) which can transport a workpiece (34) from the feed table (16) in a transport direction (36) to the machine table (12); characterized in that it comprises a second transport device (44), which is separate from the first transport device (32) and by means of an engaging portion (46) at least partially on the machine table (12) lying workpiece (34) from the machine table (12) the transport direction (36) can be transported away from the feed table (16), wherein the second transport device (44) has a rest position in which the engagement section (46) is outside, preferably below an upper side (30) of the feed table (16) and the machine table (16). 12) is arranged, and has an operating position in which the engaging portion (46) at least partially directly above the top (30) of the feed table (16) and the machine table (12) is arranged. Plate processing plant (10) according to claim 1, characterized in that the second transport device (44) at least one in and against the transport direction (36) movable Base portion (52) and at least one at least indirectly fixed thereto and vertically movable slide portion (46), which belongs to the engaging portion or forms, comprises. Panel dividing plant (10) according to claim 2, characterized in that the slide portion (46) has at least one recess (50) through which, when the second transport means (44) is in the rest position, a support member (18) of the machine table or the feed table (16) can pass at least partially. The panel divider (10) of claim 2 or 3, characterized in that the slider portion (46) includes a support arm (48) pivotally mounted to the base portion (52) and kinematically coupled to a stationary control portion (66) such that it is moved upwards in a movement of the base portion (52) in the transport direction (36) and against a movement of the base portion (52) counter to the transport direction (36). Panel dividing installation (10) according to claim 4, characterized in that the stationary control area comprises a link (66). Panel dividing installation (10) according to one of claims 2-5, characterized in that the base section (52) is connected to a flexible drive element, in particular a belt or a chain (62), which is driven by a drive, in particular an electric motor (60). , is driven. Panel dividing installation (10) according to one of the preceding claims, characterized in that the second transport device (44) has at least two partial transport devices (44A, 44B) arranged side by side and in the same direction in the transport direction (30), each having a movable base section (52 ) and in each case a pivotable holding arm (48). A panel dividing plant (10) according to claim 7, characterized in that one of the sub-transport means (44 A) comprises a drive (60) coupled by means of a coupling means (64) to another (44 B) of the sub-transport means, that he also drives the other part-transporting device (44 B). Panel dividing plant (10) according to one of claims 7 or 8 in conjunction with claim 2, characterized in that at least two partial transport means (44 A, 44 B) have a common slide portion (46) with two holding arms (48), by means of which he at the base portions (52) of the sub-transport means (44 A, 44 B) is pivotally mounted. Panel dividing installation (10) according to one of the preceding claims, characterized in that the second transport device (44) has at least one abutment section (76) on which a workpiece (34) moved in particular in the transport direction (36) by the first transport device (32) can be applied is, in the rest position of the second transport device (44) below the top (30) of the feed table (16) and the machine table (12) is arranged, and in the operating position of the second transport device (44) at least partially above the top (30) of the feed table (16) and the machine table (12) is arranged. Panel dividing installation (10) according to claim 10 in combination with at least one of claims 4, 7 or 9, characterized in that the abutment portion (76) on the support arm (48) or on the support arms (48) is arranged. A panel dividing installation (10) according to claim 11, characterized in that the abutment portion is formed by a vertical edge (76) formed on the support arm (48) and in the operative position of the second transport means (44), preferably wherein the abutment portion (76) is on the to Feed table (16) facing side of the second transport device (44) is arranged. Panel dividing installation (10) according to one of the preceding claims, characterized in that the second transport device (44) has at least one lifting element (78) with which a residual workpiece (94) located at least partially in a saw slot (28) leaves the saw slot (28). can be raised. Panel dividing installation (10) according to claim 13, characterized in that the lifting element (78) comprises an inclined upper side (92) having Aushebeabschnitt (90) in the operating position of the second transport device (44) in a direction of transport (36) extending Groove (80) is received in the machine table (12). Panel dividing installation (10) according to one of claims 13 or 14, characterized in that the lifting element (78) is arranged on an underside of the engaging portion (46) at its projecting edge (88).

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