EP2127829A1 - Board separation assembly - Google Patents

Abstract

The system (10) has a supporting table (12) for supporting a plate shaped work piece (22). A feeder device moves the work piece in feed direction (46), and a sawing device (24) separates the work piece, where cutting direction of the sawing device runs transverse to the feed direction. Processing units (48, 50) processing the work piece are placed at distance from a cutting line of the sawing device, and are movable parallel to the cutting direction. The processing units are arranged such that the units engage at the work piece outside of a saw notch (31) provided in a machine table (16).

Description

The invention relates to a panel splitter according to the preamble of claim 1.

Known from the market are plate dividing systems with which plate-shaped workpieces can be divided individually or entire stacks of such workpieces. For this purpose, the panel dividing system has a sawing device which divides the workpiece lying on a support table along a cutting direction. For a successive splitting, the panel dividing installation has a feed device which feeds the workpiece to the sawing device. Of the DE 36 09 331 C1 Such a panel dividing system is known, the sawing device comprises a saw carriage, on which additionally a drilling unit is mounted. This allows the introduction of boreholes in the workpiece.

Object of the present invention is to develop a panel splitter of the type mentioned so that it is compact and at the same time allows the most complete and fast processing of the workpiece.

This object is achieved by a panel splitter with the features of claim 1. Advantageous developments of the invention are specified in subclaims. In addition, find important features for the invention in the following description and in the drawing. The features of the invention may be important both alone and in different combinations, without being referred to again.

Due to the distance between the further processing device and the cutting line of the sawing device, the workpiece can be additionally processed by the further processing device, and either simultaneously or shortly thereafter, a cut can be made by means of the sawing device. In this case, during the processing by the further processing device, the workpiece is still gripped by the feed device and possibly even held by a usually existing pressure bar in the region of the saw line. As a result, a precise and time-saving additional processing of the workpiece by the further processing device is possible. The invention also makes complex changes in the width of the kerf unnecessary, because the other Machining device can be operated quite independently of Sägeschlitz.

As a result of the preferred arrangement of the further processing device between the sawing device and the feed device (that is, from the cutting line to the feed device or towards the feed table), the length of the plate dividing system remains unaffected, so the system builds comparatively short. In principle, however, it is also conceivable to arrange the additional processing device on the other side of the sawing device, ie away from the feed direction or in the direction of the removal table, viewed from the cutting line.

Preferably, the further processing device comprises a milling cutter and / or drill. A combination of a sawing device on the one hand and a milling cutter or drill on the other hand permits a largely complete machining of a plate-shaped workpiece on a single machine.

By an at least indirect support of the further processing device on a support and the mobility relative to this, the forces occurring during further processing are absorbed, which on the one hand protects the tool of the further processing device and on the other facilitates exact positioning and thus a precise work result.

An arrangement of the further processing device above the support table has the advantage that there usually only a few space restrictions prevail and you can handle so far the Platzierüng the other processing device very flexible. For example, in such a case, the other Machining device can be arranged very close to the cutting line of the sawing device. An arrangement of the further processing device below the support table, however, allows a favorable detection and disposal of the resulting chips in the further processing, which simplifies the entire system concept and improves the reliability of the system. In addition, the storage of further processing device below the support table is structurally simpler. However, it is understood that both arrangements can be realized simultaneously, namely, if at least two further processing devices are provided.

The mobility of the further processing device parallel to the cutting direction can - if it is located below the level of the support table - be realized in a structurally particularly simple manner that it is rigidly coupled with a saw carriage of the saw at least temporarily. A separate drive of the further processing device to move it parallel to the cutting line is not required in this case. The length of the saw carriage is also shortened and thus simplifies its construction and storage, when the additional processing device is arranged laterally next to the sawing device.

The same also applies to a further processing device which can be coupled to the saw carriage by means of a coupling, wherein the flexibility in the use of the processing device is increased by the coupling. In addition, at least temporarily, the mass to be moved is reduced, allowing a smaller drive.

A further advantageous embodiment of the invention Plattenaufteilanlage is characterized an additional mobility of the further processing device in a direction parallel to the feed direction. This makes it possible to align the positioning of the plate-shaped workpiece by the feed device substantially to the separating cut by the sawing device, whereas the further processing device can independently assume the desired distance from the cutting line of the sawing device. The flexibility and operating speed of such a panel splitter is particularly high.

To improve the result of the work by the further processing device may be provided in the area of a pressing device which presses the workpiece at least during processing by the further processing device down against the support table. If the tool of the further processing device engages from below on the plate-shaped workpiece, the working speed of the plate dividing system and the processing quality can be improved by such a pressing device, since due to the opposing pressure force the tool can operate at a higher speed.

In order to enable a movement of the workpiece by the feed device even when activated or lowered pressing device, a roller or a roller is advantageous with which the pressing device engages the workpiece.

A good power absorption of the pressure forces, which occur during operation of the pressing device, is achieved by a mounting of the pressing device to a carrier. The mobility parallel to the cutting direction allows one Positioning of the pressing device very close to the working position of the other processing device.

It is particularly favorable if the carrier on which the further processing device and / or the pressing device are held is a vertically movable pressure bar. Such is in any case present in conventional Plattenaufteilanlagen, so that can be dispensed with additional support. Also, its already existing vertical mobility, for example, be exploited at least for a part of the pressing movement of the pressing device.

The flexibility of the system is additionally improved if the further processing device and / or the pressing device can be moved vertically out of the working range of the feed device. In addition, this collisions can be avoided for example with collets of the feed device.

A further increase in the flexibility of the panel dividing system according to the invention is achieved by a tool magazine and an automatic tool changer for changing the tool of the further processing device.

Figur 1

eine Seitenansicht einer ersten Ausführungsform einer Plattenaufteilanlage;

Figur 2

eine vergrößerte Detaildarstellung eines Ausschnitts der Plattenaufteilanlage von Figur 1; und

Figur 3

eine Darstellung ähnlich Figur 2 einer zweiten Ausführungsform einer Plattenaufteilanlage.

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

FIG. 1

a side view of a first embodiment of a Plattenaufteilanlage;

FIG. 2

an enlarged detail of a section of the panel divider of FIG. 1 ; and

FIG. 3

a representation similar FIG. 2 a second embodiment of a Plattenaufteilanlage.

A panel splitter carries in FIG. 1 overall, the reference numeral 10. It comprises a support table 12, which in turn can be divided into a feed table 14, a machine table 16 and a discharge table 18. The feed table 14 is designed as a roller table. On the support table 12 is a stack 20, which is formed from a plurality of superimposed plate-shaped workpieces 22.

In the area of the machine table 16, the plate dividing system 10 comprises a sawing device 24. This in turn comprises a saw carriage 26, to which a drive motor 28 is fastened, on the output shaft of which a circular saw blade 30 is fastened. The drive motor 28 can be moved together with the circular saw blade 30 relative to the saw carriage 26 in the vertical direction (double arrow 32 in FIG FIG. 2 ). The saw carriage is on rails 34 ( FIG. 2 ), which in turn are mounted on a machine carrier 36, which also carries the machine table 16. The rails 34 and the machine frame 36 extend perpendicular to the plane of the drawing FIGS. 1 and 2 , Due to the vertical mobility of the circular saw blade 30 this can by a Sägeschlitz 31 in the machine table 16 in the in the FIGS. 1 and 2 shown top position can be moved, or can be driven so far down that the circular saw blade 30 is no longer over the top of the machine table 16.

The Plattenaufteilanlage 10 also has a feed device 38. This includes a also referred to as "program shifter" movable portal 40, which is perpendicular to the plane of the FIGS. 1 and 2 extends. The program pusher 40 is mounted at its two ends in each case on a rail 42, of which in the FIGS. 1 and 2 however only the in each case rear one is drawn. At the program pusher 40 a plurality of collets 44 are fixed, which engage in operation a rear edge of the stack 20. By a movement of the program pusher 40 in the feed direction (arrow 46), the stack 20 of the sawing device 24 can be supplied. It can be seen that the cutting direction predetermined by the movement of the saw carriage 26 on the rails 34 extends transversely to the feed direction 46.

Above the sawing device 24, the plate dividing system 10 has a pressure bar 47, which is movable in the vertical direction (double arrow 49). The pressure bar 47 extends parallel to the cutting line, ie perpendicular to the plane of the drawing FIGS. 1 and 2 , During a cut of the stack 20 by the sawing device 24, it is lowered onto the top of the stack 20, whereby it is clamped between the pressure bar 47 and the machine table 16 and thereby securely held.

The plate-dividing system 10 also has two further processing devices, namely a first further processing device 48 and a second further processing device 50.

The first further processing device 48 is arranged above the machine table 16 and on the pressure bar 47 in a manner not shown vertically movable (double arrow 52 in FIG. 2 ) attached. The pressure bar 47 is therefore a carrier for the first further processing device 48. The first further processing device 48 is also opposite to the pressure bar 47 in a direction parallel to the cutting direction, ie in a direction perpendicular to the plane of representation of FIGS. 1 and 2 movable. The first further processing device 48 comprises an assembly carrier 54, which serves for the at least indirect attachment to the pressure bar 47, and a rotating tool 56, in the present case a milling cutter. It can easily be seen that the first further processing device 48 can operate completely independently of the saw slot 31.

The second further processing device 50 has a similar structure: however, it is arranged below the support table 12, between the feed table 14 and the machine table 16. It also comprises a holder body 58 and a rotating tool 60, in this case a drill. The second further processing device 50 is attached via the holder body 58 to a carrier 62, which is designed as a boom of the saw carriage 26, whereby the second further processing device 50 is rigidly coupled to the saw carriage 26 of the sawing device 24. The second further processing device 50 is thus arranged laterally next to the sawing device 24. In this case, "beside" means that practically there is no offset between sawing device 24 or saw carriage 26 and second further machining device 50 parallel to the sawing line. It can be seen that the second further processing device 50 is so far away from the sawing device 24 and the circular saw blade 30 that the further processing device 50 not only not through must attack the saw slot 31 on the workpiece 22, but can attack next to the machine table 16 and between the machine table 16 and feed table 14 on the workpiece 22. The saw slot 31 is therefore unaffected by the further processing devices 48 and 50.

The execution of the second further processing device depends on the technological process or on the necessary processing steps and can be a milling cutter and / or a drill. Thus, for example, in single-plate processing, the second further processing device can be designed as a drilling unit. Thus, the workpieces can be made from below with so-called "pot band holes" or with holes.

The second further processing device 50 can be moved relative to the carrier 62 both vertically (double arrow 64) and in a direction parallel to the feed direction (double arrow 66). Due to the coupling with the saw carriage 26, the second further processing device 50 can also in a direction perpendicular to the plane of representation of the FIGS. 1 and 2 , ie parallel to the cutting direction, are moved.

The plate dividing system 10 further has a first pressing device 68 and a second pressing device 70. The first pressing device 68 comprises a roller 72 and a holding body 74, on which the roller 72 is rotatably mounted. The holding body 74 in turn is attached to the pressure bar 47 and can be moved vertically relative thereto (double arrow 76 in FIG FIG. 2 ). The second pressing device 70 also consists of a roller 78 and a holding body 80. It is also arranged above the support table 12, wherein the holding body 80, however, is attached to a separate portal support 82. Of the Gantry support 82 extends perpendicular to the plane of the drawing FIGS. 1 and 2 and is rigid. The holding body 80 is vertically movable relative to the gantry support 82 (double arrow 84 in FIG FIG. 2 ), and can be moved along the gantry carrier 82, ie in a direction parallel to the cutting direction.

It is understood that all movements (arrows 32, 46, 49, 52, 64, 66, 76 and 84) are motor-driven and controlled or regulated by a control and regulating device, not shown, according to a predetermined program sequence. For example, such a program flow might look like this:

First, the first further processing device 48, the first pressing device 68 and the second pressing device 70 are in their upper end positions in which they have moved out of the working range of the collets 44, and the second further processing device 50 is in its lower end position. Also, the circular saw blade 30 is in its lower end position. From the feed device 38, the stack 20 is moved in the feed direction 46 until it is opposite the sawing device 24 in a desired position. After this positioning, the pressure bar 47 is lowered onto the stack 20. Now, the sawing device 24 performs a saw cut, in which the circular saw blade 30 upwards in the in the FIGS. 1 and 2 shown position is moved, and then in the saw carriage 26 is moved in the cutting direction. In this way, for example, a cut of the head can be performed.

After lifting the pressure bar 47, the remaining stack 20 of the feed device 38 relative to the two further processing devices 48 and 50 by a movement in the feed direction 46 or positioned against it. At the same time, the two further processing devices 48 and 50 are brought into position by movements parallel to the cutting line, parallel to this, the two pressing devices 68 and 70 so that they are in the range of the two other processing devices 48 and 50. It should be noted at this point that the positioning of the second further processing device 50 is parallel to the cutting line by a movement of the saw carriage 26. Now, the tools 56 and 60 are driven and driven along the directions 52 and 64 in the stack 20 of the plate-shaped workpieces 22. In a machining (milling) of the plate-shaped workpieces 22 by the first further processing device 48 in a direction parallel to the cutting direction ("longitudinal milling"), the pressure bar 47 in the lower position and pushes the workpieces 22 against the support table 12. During a machining (milling ) in a direction transverse to the cutting direction ("transverse milling") with simultaneous movement of the workpiece 22 in or against the feed direction 46 of the pressure bar 47 is raised, and the workpiece 22 is pressed by the lowered pressing device 68 on the support table 12.

It is also possible that in the transverse division of the workpieces 22 of the cutter 56 is first positioned and then lowered by a certain distance to a desired "processing depth". Thereafter, the workpiece to be machined 22 is moved in or against the feed direction 46. By a combination of the processes for longitudinal milling and cross milling, so-called "re-cuts" can be realized without rotating the workpiece 22 be saved, whereby an additional processing step is saved.

This process is repeated successively, possibly after a repositioning of the stack 20 by the feed device 38 until a desired drilling and milling pattern is reached. Optionally, the stack 20 can also be reciprocated by the programmer 40 during processing by the milling cutter 56 or even 60 (depending on the design) in order to mill any curved contours into the stack 20. When the desired drilling and milling pattern is produced, the processing devices 48 and 50 and the pressing devices 68 and 70 are withdrawn, and the stack 20 is again positioned by the feed device 38 relative to the sawing device 24 so that it matches the drilling and milling pattern can separate detached workpiece from the remaining stack.

Now, another embodiment will be described with reference to FIGS FIG. 3 explained. It holds that such elements and areas, the equivalent functions to already in connection with the FIGS. 1 and 2 have explained elements and areas, will not be explained again in detail, and that they bear the same reference numerals in all figures.

In the FIG. 3 shown plate separation unit 10 initially differs in terms of the coupling of the second further processing device 50 to the saw carriage 26: namely, this coupling is not rigid or permanent, but by means of a clutch 86 which is controlled by the above-mentioned control and regulating device, produced or solvable. However, this implies that the carrier 62, on which the holder body 58 of the second further processing device 50 is fastened, is supported via a rail system 88 directly on the machine carrier 36. In particular, in a saw cut by the sawing device 24, the second further processing device 50 is decoupled, whereby the mass to be moved reduced and the achievable cutting speed is increased.

Another difference relates to the first further processing device 48, which is not held on the pressure bar 47 but on the gantry carrier 82. On a first pressing device is at the in FIG. 3 omitted embodiment.

In a further, not shown embodiment, a tool magazine and an automatic tool changer is also provided for each further processing device. As a result, during the processing of a stack of plate-shaped workpieces, the tool of the respective further processing device can be exchanged.

Claims (16)

A panel dividing installation (10), comprising a support table (12) for placing at least one plate-shaped workpiece (22), a feed device (38) for moving the workpiece (22) at least in one feed direction (46), and a sawing device (24) for dividing the workpiece Workpiece (22), wherein a cutting direction of the sawing device (24) transversely to the feed direction (46) extends, and at least one further processing means (48, 50) for machining the workpiece (22), characterized in that the further processing means (48, 50) is spaced from a cutting line of the sawing device (24) and is movable parallel to the cutting direction and is arranged to engage the workpiece (22) outside a sawing slot (31) present in a machine table (16). Plate dividing plant (10) according to claim 1, characterized in that the further processing device (48, 50) comprises as a tool a milling cutter and / or drill. Panel dividing installation (10) according to one of claims 1 or 2, characterized in that the further processing device (48, 50) is held at least indirectly on a carrier (36, 47; 36, 82) and can be moved parallel to the cutting direction. Panel dividing plant (10) according to one of the preceding claims, characterized in that the further processing device (48) at least in Is arranged substantially above the support table (12). Panel dividing plant (10) according to one of claims 1 to 3, characterized in that the further processing device (50) is arranged at least substantially below the support table (12). Plate dividing plant (10) according to claim 5, characterized in that the further processing device (50) with a saw carriage (26) of the sawing device (24) is at least temporarily rigidly coupled. Panel dividing plant (10) according to claim 6, characterized in that the further processing device (50) via a preferably remote-controlled coupling (86) with the saw carriage (26) of the sawing device (24) coupled and detachable from this. Plate dividing installation (10) according to one of the preceding claims, characterized in that the further processing device (50) is movable in a direction (66) parallel to the feed direction (46). Panel dividing installation (10) according to one of the preceding claims, characterized in that it comprises at least one pressing device (68, 70; 70) in the area of the further processing device (48, 50), which guides the workpiece (22) at least during processing through the further Processing device (48, 50) presses against the support table (12). Panel dividing installation (10) according to claim 9, characterized in that the pressing device (68, 70, 70) comprises a roller or a roller (72, 78). Panel dividing installation (10) according to one of claims 8 or 9, characterized in that the pressing device (68, 70; 70) is held at least indirectly on a carrier (47, 82; 82) and is movable relative to the latter parallel to the cutting direction. Panel dividing installation (10) according to claims 3 and 4 or according to claim 11, characterized in that the support is a vertically movable pressure bar (47), which is arranged above the sawing device (24) and the workpiece (22) during the sawing operation against the Support table (12) presses. Panel dividing installation (10) according to one of the preceding claims, characterized in that the further processing device (48, 50) and / or the pressing device (68, 70; 70) are vertically movable out of the working area of the feed device (38). Panel dividing installation according to one of the preceding claims, characterized in that it comprises a tool magazine and an automatic tool changer for changing the tool of the further machining device. Plate dividing plant (10) according to one of the preceding claims, characterized in that the further processing device (48, 50), viewed from the cutting line, is arranged towards the feed device (38). Panel dividing plant (10) according to one of claims 1 to 14, characterized in that the further processing means (48, 50) seen from the cutting line of the feed device (38) is arranged away.

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