阅读说明：本技术 用于锯切至少一个板的方法 (Method for sawing at least one plate ) 是由 沃尔夫冈·波什赫尔 于 2021-04-28 设计创作，主要内容包括：一种用于借助板分割设备的至少一个沿着锯割线可移动的锯,沿着至少一个切割线路的切割线,锯切至少一个板或至少一个板垛的方法,其中,所述切割线在有时相应的切割线路中部分地相互平行以及部分地相互形成夹角尤其垂直地布置,锯切所述板或所述板垛按前后相继的锯割工序阶段进行,其中,在每一个所述锯割工序阶段中沿着有时相应的所述切割线路的一条单独的切割线仅进行一个锯割过程,或者沿着有时相应的所述切割线路的相互平行的切割线仅进行多个锯割过程,其中,在至少两个前后相继的锯割工序阶段之间,进行板起垛和/或板卸垛,并且至少这两个前后相继的锯割工序阶段的锯割过程是在上下堆叠的板的数量彼此不同的情况下进行的。(Method for sawing at least one plate or at least one plate stack along a cutting line of at least one cutting line by means of at least one saw of a plate separating device, wherein the cutting lines are arranged partially parallel to one another and partially at an angle to one another, in particular perpendicularly, in the respective cutting line, and the plate or plate stack is sawn in successive sawing process phases, wherein in each of the sawing process phases only one sawing process is carried out along an individual cutting line of the respective cutting line, or only a plurality of sawing processes are carried out along mutually parallel cutting lines of the respective cutting line, wherein between at least two successive sawing process phases a plate stacking and/or a plate unstacking is carried out, and the sawing processes of at least two successive sawing process phases are carried out with different numbers of plates stacked one above the other The following procedures were carried out.)

1. Method for sawing at least one plate (1) or at least one plate stack (2) along a cutting line (3) of at least one cutting line (4) by means of at least one saw (6) of a plate separating device (7) which is movable along a saw line (5), wherein the cutting lines (3) are arranged partially parallel to one another and partially at an angle to one another, in particular perpendicularly, in the respective cutting line (4) at times, the plate (1) or the plate stack (2) being sawn in successive sawing process stages, wherein in each of the sawing process stages only one sawing process is carried out along a single cutting line (3) of the respective cutting line (4) at times, or a plurality of sawing processes are carried out only along mutually parallel cutting lines (3) of the respective cutting line (4) at times, characterized in that the plate stacking and/or plate unstacking is carried out between at least two successive sawing process stages, and the sawing process of at least these two successive sawing process stages is carried out with the number of plates (1) stacked one above the other differing from each other.

2. Method according to claim 1, characterized in that the entire sawing process of all sawing process stages of the method is performed with exactly one saw (6) of the plate dividing device (7) which is movable along a sawing line (5).

3. Method according to claim 1 or 2, characterized in that the stacking and/or unstacking of the sheets is preferably carried out solely by means of at least one, preferably program-controlled, operating device (8) of the sheet separating device (7).

4. A method according to claim 3, characterised in that at least one of said plates (1) or at least one of said plate stacks (2) is transported and/or turned between at least two of said sawing process stages by means of at least one of said operating devices (8).

5. A method according to claim 3 or 4, characterized in that after the stacking and/or unstacking of the boards and before the subsequent sawing process stage, the boards (1) in the board stack (2) are brought into mutual alignment using at least one of said handling devices (8).

6. A method as claimed in any one of claims 3 to 5, characterized in that the operating device (8) has a suction hood (9) for sucking the individual sheets (1).

7. Method according to any of claims 3 to 6, characterized in that the operating device (8) has a base body (10) and a slide (11) which is arranged pivotably and/or displaceably on the base body (10) and which serves to push or pull an individual plate (1) or plate stack (2).

8. A method as claimed in any one of claims 3 to 7, characterized in that the operating device (8) has one or said base body (10) and a plurality of clamps (12) for clamping individual panels (1) or stacks (2) between at least two clamping plates (13) of the clamps (12) which are movable relative to one another.

9. Method according to claim 8, characterized in that all clips (12) of the operating device (8) are arranged on one side of a base body (10) of the operating device (8).

10. Method according to claim 8 or 9, characterized in that the clamps (12) each have two clamping plate pairs (14) each having two clamping plates (13) which can be moved relative to one another, wherein the clamping plate pairs (14) are arranged on the base body (10) of the operating device (8) away from one another.

11. Method according to any one of claims 3 to 10, characterized in that, when carrying out a sawing process stage, at least one of the plates (1) or at least one of the plate stacks (2) is transported in a first region (15) of the plate dividing device (7) by a feed mechanism (16) of the plate dividing device (7) in a feed direction (17) towards a sawing line (5) and, viewed in the feed direction (17), after the sawing line (5) they are transported further into a second region (18) of the plate dividing device (7), wherein the plate unstacking and/or plate unstacking is carried out in the second region (18) by at least one of the operating devices (8).

12. Method according to claim 11, characterized in that the second area (18) is a setback area externally surrounding the sawing line (5), in which setback area at least one of the panels (1) or at least one of the stacks (2) is transported back into the first area (15) by at least one of the handling devices (8) between two successive stages of the sawing process.

13. Method according to claim 11 or 12, characterized in that at least one of the plates (1) or at least one of the plate stacks (2) is transported by at least one of the operating devices (8) between two successive sawing process stages from the second region (18) over the sawing line (5) back into the first region (15).

14. A method according to any one of claims 11 to 13, characterized in that at least one of the plates (1) or at least one of the plate stacks (2) is temporarily stored in the second area.

15. A method according to any one of claims 1 to 14, characterised in that at least one previously deposited sheet (1) or at least one previously deposited sheet stack (2) is stacked together during the stacking of the sheets.

Technical Field

The invention relates to a method for sawing at least one board or at least one board stack along a cutting line of at least one cutting line by means of at least one saw of a board separating device that is movable along the cutting line, wherein the cutting lines are arranged partially parallel to one another and partially at an angle to one another, in particular perpendicularly, in the respective cutting line, and the sawing of the board or board stack is carried out in successive stages of the sawing process, wherein in each stage of the sawing process only one sawing process is carried out along a single cutting line of the respective cutting line, or a plurality of sawing processes are carried out only along mutually parallel cutting lines of the respective cutting line.

Background

The division of the plates or plate stacks by means of plate dividing devices using methods of the type described is a strictly sequential process. In carrying out the method, the starting plates are sawn into the final pattern by means of different intermediate patterns, either individually or stacked in stacks, in successive sawing stages. In each case, in a single sawing process stage, a single sawing process or a plurality of sawing processes are carried out only at the cutting lines which are parallel to one another. In the prior art, the plates can be sawn in the form of a plate pack if all plates of the plate pack can be divided along the same cutting line, i.e. according to a common cutting line. If this is not the case, however, in a method of the type in question it is necessary to divide each plate individually into the final patterns by means of corresponding intermediate patterns.

Such a method is described in EP 2422944B 1, wherein the document provides that after a sawing process stage has been carried out, the individual plates are transported back in order to subsequently carry out the next sawing process stage. In this document, the sawing process in the first sawing step is referred to as a first cut, the sawing process in the second sawing step is referred to as a second cut, and the sawing process in the third sawing step, which is sometimes performed, is referred to as a third cut. This way of naming is very common and has also been found, for example, in EP 2193894B 1, which proposes a special solution for making a third cut by means of a so-called deep cut.

With a method of the type described, the plates are sawn in the pack only if all plates of the pack have to be sawn according to the same cutting line. If this is not the case, it is necessary in the prior art to saw each plate individually according to its respective cutting line. This is disadvantageously reflected in the time required for dividing each plate.

Disclosure of Invention

The object of the invention is to propose a possibility for a method of the type mentioned in the introduction, how the total time required for the division of the plate can be reduced.

In order to achieve this object, according to the invention, a method according to claim 1 is proposed.

The method is thus characterized in that the plate stacking and/or plate unstacking is carried out between at least two successive sawing process stages, and the sawing process of at least these two successive sawing process stages is carried out with the number of plates stacked one above the other differing from each other.

The invention is based on the idea that, in the method according to the invention, the plates can always be sawn jointly in the form of a plate stack in each subsequent sawing process stage, as the position of the cutting line in the next sawing process stage allows. If, on the other hand, the cutting lines are positioned differently, so that a common sawing in the next sawing process stage cannot be carried out in the pack, the sawing process in this sawing process stage must be carried out only on packs with plates or on individual plates. By means of the invention, it is thus possible to carry out the sawing process of the sawing process stage on the pack efficiently and always when the position of the cutting line allows it. The total number of sawing operations required can be optimized and reduced in this way.

There are numerous possible solutions for implementing the method according to the invention. In the implementation of the method, both plate stacking and plate unstacking can occur between the different sawing process stages. For example, the method can start with a single plate, wherein the plate produced in this case is then stacked one on top of the other after the first sawing process stage, in order to continue sawing as a plate stack in a subsequent sawing process stage. Subsequently, plate stacking and/or plate unstacking can likewise take place between further subsequent sawing process stages. It is also possible to start with at least one plate stack, wherein a plate unstacking then takes place, for example after the first sawing process stage has been carried out, in order then to saw plates in the subsequent sawing process stage, either in smaller plate stacks or individually. It is then of course also possible to subsequently stack the plates again between subsequent successive sawing stages. The aim is always to saw as many plates as possible in the form of a plate stack jointly in the subsequent sawing process phases, as long as the cutting lines to be considered in each case in this sawing process phase allow.

The method according to the invention can basically have a different number of sawing process stages, depending on the arrangement of the cutting lines in the cutting line.

If the boards are sawn in one sawing process stage by one or more sawing processes in the method according to the invention, a corresponding number of smaller boards and sometimes scrap are produced from the boards preceding the sawing process stage. The same applies to the pack. The plates or plate packs produced in the respective sawing process stage can then also be the starting product for the next sawing process stage, in order to be sawed again into smaller plates or plate packs of small format in this sawing process stage. Depending on the number of sawing process stages, the final pattern is thus produced from a single initial plate or in other words a starting plate or from a plate stack consisting of a plurality of starting plates, with a corresponding number of intermediate patterns. The initial form, i.e. the initial plate or the plate stack made of the initial plates, or the intermediate form and the final form, is always the plate or plate stack. Since a different number of sawing process stages can be specified according to the method of the invention, the plates or plate stacks are always described for the sake of linguistic simplicity. The term "plate" may thus denote both the initial form, as well as the intermediate form and the final form of the original plate form. The same applies to the pack. The pack always comprises a certain number of plates stacked one on top of the other in any case. In the respective sawing process stage, it is possible to saw individual plates, but also stacks of plates, even plates arranged alongside one another or stacks of plates arranged alongside one another, depending on how the respective cutting line allows this.

Each board is assigned to one cutting line. Each cutting line comprises a number of cutting lines which are partially parallel to one another and are arranged at an angle to one another, in particular perpendicularly. Cutting lines are lines along which the board is to be sawn into its intermediate and final form. The cutting line is preferably straight or, in other words, straight.

The method according to the invention can also be provided with a single cutting line for a single or virgin sheet. In this case, for example, after the first sawing process stage has been carried out on the plate, the resulting plate can be stacked one on top of the other and subsequently sawed as a stack in a subsequent sawing process stage.

In general, however, in the method according to the invention, different plates are machined and the different cutting lines assigned to these plates are machined accordingly. The respective plates are then sawed individually or in stacks according to the respective cutting line. The method can thus be carried out with a single cutting line, but also with a plurality of cutting lines. This also results in the design used in claim 1 of the respective cutting line.

It is of course also possible to saw several plates according to the same cutting line. The method according to the invention is used in particular when different cutting lines of different boards have the same cutting line in some regions and different cutting lines from one another in other regions.

The cutting lines to be sawn in the first sawing process stage may also be referred to as first cutting lines, the cutting lines to be sawn in the second sawing process stage may also be referred to as second cutting lines, the cutting lines to be sawn in the third sawing process stage may also be referred to as third cutting lines, etc., as is known per se in the art. The term "cutting line" is not to be confused with the term "sawing line". The cutting line is a part of the cutting line, indicating where on the respective board the sawing process is to be performed. And the sawing line is a line of the board dividing apparatus along which the saw of the board dividing apparatus moves to perform the sawing process. This is known per se. The sawing lines are preferably straight or straight. The saw may be, for example, an under-table circular saw which is movable in a saw frame along a sawing line, as is the case, for example, in numerous known plate separating devices.

In a sawing process stage, a sawing process is carried out either only along a single cutting line or only along cutting lines which are parallel to one another. In a sawing process stage, at least one plate or at least one plate stack is thus never sawn along cutting lines which are arranged at an angle to one another, in particular perpendicularly. In this case, a sawing process stage comprises the steps of conveying at least one plate to be sawn in each case or at least one plate stack to be sawn in each case toward the sawing line, sawing by moving the saw along the sawing line, continuing the conveying of the plates until the next cutting line is located on the sawing line, the subsequent sawing process, and so on, until all sawing processes to be completed in this sawing process stage have been completed. However, as mentioned, this can also be just a single sawing process.

The transport of at least one plate or at least one plate stack during the sawing process stage can be effected by feed mechanisms known per se on plate separating devices. In a preferred variant of the invention, it is also provided that the known press bar of the plate dividing device presses at least one plate or at least one plate stack against the workpiece support table of the plate dividing device during the sawing process. During the execution of the method, the plate or plate stack is preferably located on a corresponding workpiece support table of the plate dividing apparatus. The workpiece support table may have different regions. The workpiece support table or regions thereof may be designed as roller conveyors, air cushion tables, bristle surfaces, etc., at known cost.

It is advantageously provided for the sawing processes to saw the respective plate or the respective plate stack into two completely separate parts.

In any case, a sawing process stage always ends before the next sawing process stage is started. It is also possible to carry out further process steps, such as conveying, turning, or also plate stacking and/or plate unstacking, between two successive sawing process steps.

Sheet stacking is the process of stacking one or more other sheets onto a sheet or stack of sheets. Plate unstacking is the process of removing or destacking at least one plate from a stack of plates, i.e. at least two plates stacked one on top of the other. For the depalletizing of the plates, the following preconditions are of course present: a pack of plates is pre-existing. It is not possible to depalletize the plates from one single plate. Plate unstacking and/or plate unstacking may also be collectively referred to as plate unstacking.

By stacking and/or unstacking the plates, the height of the stack of plates varies in any case, or in other words the number of plates stacked one above the other in the stack varies. Accordingly, if the plate stacking or plate unstacking is carried out between two successive sawing process stages, one or more sawing processes are carried out in the two successive sawing process stages with the number of plates stacked one above the other differing from each other. If there is even no plate stack at all, but only one single plate, the number of plates stacked one on top of the other is equal to one. If there are two plates stacked one on top of the other in a plate stack, the number of plates stacked one on top of the other equals two, and so on. However, in this case, only the number of plates lying one above the other is always counted. If the individual plates are side by side with each other, the number of plates stacked one on top of the other is still equal to one. If a plurality of plate stacks are arranged next to one another, only the plates stacked one above the other in one plate stack are counted at all times.

As mentioned, the method according to the invention can be performed with a very different number of boards, a very different number of sawing process stages, etc.

In a simple embodiment of the method according to the invention, it is provided that only one unstacking of the plates takes place between at least two successive sawing phases, if any. In this method, the number of plates stacked one on top of the other is reduced from one sawing step to another or remains equal. If only one unstacking is specified, it is of course always possible to start with a plate stack at the start of the method.

Preferably, in the method according to the invention, only such plate stacks are processed as follows: in this pack, all the plates of the pack have the same length and the same width, respectively. The plates of the plate stack may differ from each other in thickness, i.e. the smallest dimension of the respective plate. However, it is of course also possible for the individual plates in the plate stack to have the same thickness.

Various designs of panel dividing apparatus are known in the prior art. Such a plate separating device may have in particular a single sawing line, but also a plurality of sawing lines arranged one behind the other or side by side. In principle, the method according to the invention can also be carried out on a plate separating device with a plurality of sawing lines. However, it is particularly preferably provided that the entire sawing process of all sawing process phases of the method is carried out with exactly one saw of the plate dividing device which is movable along the sawing line. It is possible here for the plate dividing device used for carrying out the method according to the invention to have exactly one sawing line instead of a plurality of sawing lines. In principle, however, it is also conceivable to carry out the entire sawing process of all the sawing process stages of the method with exactly one saw which is movable along a sawing line on a plate separating device which itself has a plurality of sawing lines. The term "saw" refers herein to a sawing unit for carrying out a sawing process. The saw may be the only saw blade, in particular a circular saw blade. However, in the prior art, it is often also provided that a so-called pre-cut saw blade and a main saw blade are arranged in a saw frame so as to be jointly movable. In this case, the unit consisting of the pre-scribed blade and the main blade is considered to be a saw.

In principle, it is conceivable that in the method according to the invention the plate lifting and/or plate unstacking can be carried out manually by the respective operator. But it is also advantageous that the stacking and/or unstacking of the plates is a fully automated process. In this context, it is advantageously provided that the stacking and/or unstacking of the sheets is preferably carried out exclusively by means of at least one preferably program-controlled operating device of the sheet separating device.

In a preferred embodiment, the operating device is movably arranged in three spatial directions. For this purpose, it can be mounted movably on rails arranged perpendicularly to one another and adjustable in the vertical direction. However, it is also advantageously provided that the operating device is mounted so as to be rotatable about a vertical axis. Preferably, the handling device is movably arranged via a respective region of the workpiece support table. Depending on the design of the respective plate dividing device, a plurality of operating devices can also be provided in different regions of the plate dividing device. The handling device is advantageously designed such that it can be extended into the adjacent area in order to remove the plate or plate stack there or to place the plate or plate stack there. In any case, it is also preferably provided that at least one plate or at least one plate stack is transported and/or rotated between at least two sawing process steps by means of at least one handling device. The rotation then takes place, as already mentioned, about the vertical axis in question, which is preferably perpendicular to the board to be sawn and/or the stack of boards to be sawn, or also to the workpiece support table.

In a preferred embodiment, after the stacking and/or unstacking of the plates and before the next sawing process stage, the plates stacked one above the other are aligned with respect to one another. In a related manner it is thus advantageously provided that after the stacking and/or unstacking of the plates and before the subsequent sawing process stage, the plates in the plate stack are aligned with each other using at least one handling device. The expression "using at least one operating device" may mean that the operating devices are aligned individually. However, it may also mean that the handling device cooperates with other areas or mechanisms of the sheet separation device for aligning the sheets in the respective sheet stacks. The operating device can then cooperate with the per se known stop rail, per se known feed mechanism, per se known aligning projections, etc. of the sheet separating device in order to align the sheets in the stack.

The handling device can have different mechanisms for handling or holding the plate or plate stack. For example, it can be provided that the handling device has a suction hood for sucking the individual plates. In this case, the individual plates can be sucked by means of the suction hood of the handling device and can be transported and/or rotated in cooperation with the handling device. The use of such suction hoods is known per se for panel separating devices. The suction hood can also be used, for example, during the stacking and/or unstacking of the plates.

In addition or alternatively, it can also be provided that the actuating device has a base body and a slide which is mounted on the base body in a pivotable and/or displaceable manner and which serves to push or pull the individual plates or plate stacks. This can be used firstly for conveying at least one plate or at least one plate stack. However, the slide of the handling device can also be used to align the plates in the plate stack, for example by pulling or pushing the plates of the plate stack against the stops by means of the slide. In addition, however, such a slide of the handling device can also be used for the stacking and/or unstacking of plates, as will be shown by way of example in the description of the figures below.

Alternatively and/or in addition to the suction hood and/or the slide, it can also be provided that the handling device has one or the base body and a plurality of clamps for clamping the individual plates or plate stacks between at least two clamping plates of the clamps that can be moved relative to one another. Such clips are known per se for sheet-cutting devices, in particular for their feed mechanism. Between the two clamping plates of each gripper, which can be moved relative to one another, the plates or plate stacks can be clamped in order to be transported together with the handling device. In this case, the preferred variant provides that all the clips of the actuating device are arranged on one side of the base body of the actuating device. In particular, it is preferably provided that the clamps each have two clamping plate pairs, each of which has two clamping plates that can be moved relative to one another, wherein the clamping plate pairs are arranged on the base body of the actuating device away from one another. In this design, the plate or plate stack is clamped on one side of the clamp by the jaws of one jaw pair, and the plate or plate stack is clamped on the other side of the clamp by the jaws of the other jaw pair.

Provision is preferably made for the gripper to be arranged at a distance from a vertical axis about which the operating device is rotatable. For large boards, this can be used to locate a vertical axis in the region of the board, about which the board fixed to the operating device rotates together with the operating device. This saves space. For small plates this can be used to enable transfer of the plates to or from adjacent areas.

In a preferred variant of the method according to the invention, it is provided that, during the execution of the sawing process phase, at least one plate or at least one plate stack is respectively conveyed in a first region of the plate dividing device by a feed device of the plate dividing device in the feed direction toward the sawing line and, viewed in the feed direction, behind the sawing line they are conveyed further into a second region of the plate dividing device, wherein in the second region the plate stacking and/or the plate unstacking is carried out by at least one operating device. The feed mechanism of the plate dividing device used here is known in the prior art in many ways. These feed mechanisms usually have side-by-side grippers, with which they can grasp the sheet or the sheet stack or the sheet and sheet stack side by side and transport it in the feed direction towards the sawing line or away from it. The first region of the plate dividing apparatus may be referred to as a supply region, or correspondingly, the first region of the workpiece support table may also be referred to as a supply region. There are various possibilities for designing the second area. For example, it can be provided that the second region is a retracted region which surrounds the sawing line on the outside and in which the at least one plate or the at least one plate stack is transported back into the first region by the at least one handling device between successive stages of the sawing operation. However, the second region may be a region opposite to the first region with reference to the saw cut line. In particular, it can also be provided that at least one plate or at least one plate stack is transported between two successive sawing process steps from the second region back into the first region via the sawing line by at least one handling device.

In particular, these second regions can be used for the stacking and/or unstacking of the boards, for the transport and for the temporary storage of the boards or board stacks. In this connection, a preferred variant of the invention provides that at least one sheet or at least one sheet stack is temporarily stored in the second region. In a particularly preferred embodiment, it is also provided that, during the stacking of the sheets, at least one previously deposited sheet or at least one previously deposited sheet stack is stacked together.

Drawings

Further features and details of a preferred design of the method according to the invention and of a plate dividing apparatus usable therefor can be taken from the following description of the figures, for example.

Fig. 1 is a schematic top view of a first board dividing apparatus;

fig. 2 is a schematic top view of a second plate dividing apparatus;

FIG. 3 is a vertical cross-sectional view taken along the respective saw lines of FIGS. 1 and 2;

fig. 4 to 12 are views of a preferred design of the operating device;

FIG. 13 is a top view of the first plate with a cutting line drawn thereon;

FIG. 14 is a top view of the second plate with a cutting line drawn thereon;

fig. 15 shows two plates according to fig. 13 and 14 stacked one above the other;

fig. 16 shows a third plate with a third cutting line.

Detailed Description

The board dividing device 7 shown in fig. 1 is an example with only one sawing line 5, wherein the board 1 or board stack 2 to be sawn is supplied to the sawing line 5 by means of a feed mechanism 16 from an additional table 25 via a first region 15 of a workpiece support table 20 in a feed direction 17. The feed mechanism 16 has clips 19 known per se, with which the feed mechanism can grip the sheet 1 and/or the stack 2 in a manner known per se. The feed device 16 can be moved in the feed direction 17 toward the sawing line 5, but can also be moved in the opposite direction, in order to be able to feed the boards 1 and/or the board stacks 2 to be sawn in the corresponding direction. In the first shown embodiment of the plate dividing apparatus 7, in the first region 15 in which the workpiece support table 20 is embedded, there is a row of alignment projections 22 which, in order to align the plate 1 or plate stack 2, can project above the lying plane of the workpiece support table 20 and can also be retracted below this in a manner known per se.

Above the sawing line 5 there is a press beam 21, known per se, which is mounted vertically movably on a press beam column 31 and which is used to press the plate 1 and/or the plate stack 2 against the workpiece support table 20 during the respective sawing operation. This can be designed accordingly as shown in fig. 3. The saw 6 is movable along the sawing line 5 in order to perform the sawing process. The sawing line 5 is preferably straight and preferably runs from one top beam column 31 to the other top beam column 31. The embodiment shown here shows a design of the saw 6 which is very widely used in the prior art. In the variation shown here, the saw includes a pre-scored saw blade 26 and a main saw blade 51. As is known in the art, pre-scoring blade 26 is used to score the board and main blade 51 is used to completely saw off board 1 or pack 2. Of course, the pre-scoring blade 26 may be omitted. Two saw blades can be arranged in the saw frame 30 in a manner that it can be raised and lowered. The saw 6 is in any case moved along the sawing line 5 by means of the saw frame 30. All of which are known per se and need not be described further.

Preferably, as is also shown in fig. 3 and 1, there is also at least one alignment projection 23 on the press beam 21, which is arranged on the press beam so as to be movable vertically, but also parallel to the sawing line 5. The alignment projection 23 can be used to press the plate 1 or the respective plate stack 2 located in the region of the sawing line 5 on the workpiece support table 20 against the stop rail 24 in order to thereby achieve a corresponding alignment of the plate 1 or plate stack 2. This is known per se. Of course, other manners and arrangements of saws may be employed for the method according to the invention.

Viewed in the feed direction 17, the sawing line 5 is followed by a second region 18, which in the exemplary embodiment according to fig. 1 surrounds the sawing line 5 as a retraction region, so that the plate 1 and/or the plate stack 2 can be retracted again into the first region 15 in the second region 18 surrounding the sawing line 5. Also located in the second region 18 is a workpiece support table 20 on which the plate 1 and/or the plate stack 2 can be transported, rotated and possibly temporarily stored. For temporary storage, various additional stations 25 adjacent to the second region 18 may also be used. These additional stations 25 can also be used to remove the sawn plates 1 or plate stacks 2, but can also be used to supply the original plates.

In order to operate the plate 1 and/or the plate pack 2 in the second region, two operating devices 8 are provided in the plate separating device 7 according to fig. 1, as will also be described in detail later with reference to fig. 4 to 12. With these handling devices 8, the plates 1 and/or plate stacks 2 can in any case be transported, rotated, stacked and/or unstacked in the second area, and also be temporarily stored. In particular, the plate 1 and/or the plate stack 2 can also be conveyed back in the second region 18 towards the first region 15.

Each operating device 8 is movable in three spatial directions. In one horizontal direction along the slide rails 27 and in a second horizontal direction along the slide rails 28, respectively, and in a vertical direction, i.e. perpendicular to the plane of the board, are raised and/or lowered. Additionally, the two operating devices 8 are each rotatable about a vertical axis 29. The two operating devices 8 shown here have both the suction hood 9 and the slide 11 and the gripper 12, as will be described in more detail with reference to fig. 4 to 13 below.

If the plate dividing device 7 according to fig. 1 is used for carrying out the method according to the invention, the entire sawing process of all sawing process phases of the method is carried out with exactly one of the plate dividing devices 7, i.e. the single saw 6 which is movable along the sawing line 5. At least one plate 1 or at least one plate stack 2 is transported in the first region 15 by the feed device 16 in the feed direction 17 toward the sawing line 5 during the execution of the respective sawing process stage and is sawn there. According to the invention, the plate stacking and/or plate unstacking to be carried out between at least two successive stages of the sawing process is carried out downstream of the sawing line 5, i.e. in the second region 18. One of the operating devices 8 is used for this purpose. The second region 18 can then also be used as a retracted region around the sawing line 5 for conveying the respective plate 1 and/or the respective plate stack 2 back into the first region 15 between two successive stages of the sawing operation by means of the two handling devices 8. In this case, the plates and/or plate stacks can also be rotated correspondingly by means of these actuating devices 8. Temporary storage may also be carried out in the second region 18 and/or sometimes also on the additional table 25. By way of its design, it is possible to use these operating devices 8 to project into the adjacent regions in each case. One of the actuating devices 8 can then project under the respectively raised press beam into the first region 15 through it in order to remove the sheet and/or the sheet stack there or to transport it there. The additional table 25 can likewise be reached well by the operating device 8. In addition, one of the handling devices 8 can also push the plate and/or plate stack from the second region 18 back into the first region 15 via a stop rail 24, which is preferably lowered. The thus conveyed-back plate 1 or plate stack 2 is again gripped by the feed device 16 and fed to the sawing line 5 again for the execution of the subsequent sawing process step. The alignment of the plate 1 and/or the plate stack 2 before the next sawing process stage, respectively, can take place in a direction parallel to the feed direction 17 in a manner known per se by means of the grippers 19 and the alignment projections 22 of the feed device 16. In order to align the plate 1 and/or the plate stack 2 in a direction perpendicular to the feed direction 17, an alignment projection 23 on the press beam 21 can be used, as shown in fig. 3. Alternatively, as will also be described later with reference to fig. 8, it is also possible to use one of the handling devices 8 in cooperation with the stop rail 24 for aligning the plate 1 and/or the plate stack 2. In this way, different designs of the method according to the invention can be implemented on the board separation device 7 according to fig. 1.

Fig. 2 shows a schematic top view of a second plate dividing device 7 with which the method according to the invention can likewise be carried out. Here, the second region 18 is not designed as a run-back region around the sawing line 5. But rather stipulate that: with the aid of the handling device 8 arranged in the second region 18, the plate 1 and/or the plate stack 2 is pushed from the second region 18 over the sawing line 5 into the first region 15 before the first sawing process stage. There, they can be gripped by the feed mechanism 16 with their gripper 19 and transported in a manner known per se in the feed direction 17 for carrying out a first sawing process stage. The saw 6, the sawing wire 5, the pressing beam 21 and the alignment protrusion 23 are shown in fig. 3 and already described in connection with fig. 1. It is also advantageously provided here that, during the execution of the sawing process phase, at least one plate 1 or at least one plate stack 2 is respectively conveyed in a first region 15 of the plate dividing device 7 by a feed mechanism 16 of the plate dividing device 7 in a feed direction 17 toward the sawing line 5 and, viewed in the feed direction 17, is conveyed further behind the sawing line 5 into a second region 18 of the plate dividing device 7, wherein plate stacking and/or plate unstacking is carried out by at least one handling device 8 in the second region 18. In contrast to the solution according to fig. 1, however, in the case of the plate separating device according to fig. 2, it is then preferably provided that at least one plate 1 or at least one plate stack 2 is transported back into the first region 15 from the second region 18 over the sawing line 5 by at least one handling device 8 between two successive stages of the sawing process. The handling device 8 according to fig. 2 is constructed exactly the same as the handling device 8 according to fig. 1, so that the plate 1 as well as the plate stack 2 can be transported, rotated, stacked and unstacked on the workpiece support table 20 in the second region 18, but can also be temporarily stored. Additional stations 25 may also be employed for temporary storage. The handling device 8 can accordingly reach these additional stations 25 by its design and pass under the press beam 21.

Fig. 4 shows the operating device 8 and the slide rail 27. The slide rail 27 and thus the operating device 8 are movable along the slide rail 28, which is not shown in fig. 4, by means of the rollers 32 and the drive wheel 33. A first drive element 34 is provided for this purpose. By means of the second drive 35, the operating device 8 can be moved along the slide rail 27. In addition, the operating device 8 can also be raised and lowered along a vertical line, i.e. parallel to the vertical axis 29, and is likewise rotated about the vertical axis 29 by the rotary drive 36.

The operating device 8 shown here has both a suction hood 9 with a corresponding suction connection 41 and also a slide 11 and a plurality of clips 12 which are arranged movably and pivotably relative to the base body 10 of the operating device 8, as will also be described in more detail below with reference to the drawings.

The suction connection 41 of the suction hood 9 can be seen in fig. 5. In a manner not shown here but known per se, these suction connections extend to a respective underpressure source with which the underpressure required for sucking the board in the suction hood 9 can be provided. One of the slide drives 37 can also be clearly seen in fig. 5. By means of these slide drives 37, the slide 11 can be displaced, but can also be pivoted, under the guidance of guide wheels 38 which roll in guide runners 39, respectively, in order to displace the slide 11 relative to the base body 10.

In fig. 5, the workpiece support table 20 is shown as a bristle table. It has a plurality of bristles 42 arranged one behind the other in a row, on which the plate 1 and/or the plate pack 2 can rest in order to be transported via the workpiece support table 20 or rotated thereon. The clamping plates 13 of the clips 12 are advantageously designed such that they collide as little as possible with the bristles 42, so that the wear of the bristles 42 is kept as low as possible.

This can be achieved, for example, as follows: the operating device 8 or operating devices 8 are suitably moved in such a way that the clamping plate 13 does not collide as much as possible with the bristles 42, for example in such a way that the clamping plate 13 moves in the region between the bristles 42. It is also possible for the bristles 42 to be left free for this purpose in some regions or to have a suitable spacing.

Alternatively, it is also possible to move the actuating device 8 or actuating devices 8 preferably on defined identical paths, on which the bristles 42 swept by the clamping plate 13 are subjected to increased wear, but in the preferably adjacent regions which are not swept or are swept to a lesser extent, the carrying capacity of the bristles 42 is sufficient to be able to reliably carry the plate 1 and/or the plate pack 2.

If the workpiece support table 20 is designed as a roller conveyor, the clamping plate 13 preferably moves in the region between the rollers of the roller conveyor. When the workpiece support table 20 is designed as an air cushion table, a recess is advantageously provided in the support surface of the workpiece support table 20 as a recess for the clamping plate 13. This may also be advantageously applied to any other type of support.

Further structures of the clamp 12 of the operating device 8 of this embodiment will be described in detail below.

Fig. 6 shows exemplarily how a plate 1 can be removed from a plate stack 2 on a workpiece support table 20 by means of a suction hood 9. The panels 1 thus sucked to the handling device 8 by means of the suction hood 9 can then be transported and/or rotated, and also be unstacked or unstacked. This rotation is performed by rotating the operating device 8 about its vertical axis 29. The function of such a suction hood 9 and its use in the plate dividing device 7 are known per se and need not be described again.

Fig. 7 shows how the slide 11 can be used to displace a plate stack 2 lying on the workpiece support table 20. This of course also applies entirely to a single plate 1.

Fig. 8 shows how the slide 11 can be used to press the plates 1 of the plate stack 2 against stop rails 24 that can be lowered into and raised out of the work piece support table 20 in order to align the plates 1 in the plate stack 2. For this purpose, the stop rail 24 is arranged in the workpiece support table 20 in a manner that can be raised and lowered in the direction of movement 43. In the fully lowered state, the plate 1 or plate stack 2 can be pushed apart via the stop rail 24. If the stop rail 24 is then lifted above the support level of the workpiece support table 20 in the respective direction of movement 45, it can be used as a stop rail together with the handling device 8 for aligning the plate 1 or plate stack 2 in the manner shown in fig. 8. This can be achieved in particular in the embodiment of the plate dividing device 7 according to fig. 1 in the transition region between the second region 18 and the first region 15.

Fig. 9 and 10 show by way of example how such a slide 11 can also be used for unstacking plates 1 in cooperation with a respective stop 24 and a respective lifting table 44 which are movable in the movement directions 43 and 45. Accordingly, stacking can also be carried out. For this purpose, the lifting table 44 and the stop 24 are always positioned such that the uppermost plate 1 can be pushed down for unstacking or, likewise, a corresponding new plate 1 can be pushed up.

The structure and function of the clamp 12 of the operating device 8 shown here is shown more clearly in fig. 11 and 12. In particular, each clip 12 here has two clamping plate pairs 14, which are each fastened to the base body 10 facing away from one another. Each clamping plate pair 14 has two clamping plates 13 which can be moved away from one another and towards one another. This is achieved by moving the upper clamping plate 13 by means of the clamp drive 40. As can be seen clearly in fig. 14, in a preferred embodiment, all the clips 12 are arranged on one side of the base body 10 of the actuating device 8, as shown here. Preferably, the clip 12 is also arranged spaced from the vertical axis 29. This has two advantages. For one, as shown in fig. 11, this enables the handling device 8 to be used to reach into adjacent areas in order to remove a plate 1 and/or a plate pack 2 there from or to transport a plate 1 and/or a plate pack 2 towards there. A further advantage of this design is that the plate 1 or plate stack 2 can also be gripped in a space-saving manner, so that the vertical axis 29 is located above the plate 1 or plate stack 2. This is advantageous in particular when very large plates 1 and/or plate stacks 2 have to be moved and/or rotated.

Examples for carrying out the method according to the invention are described below with reference to fig. 13 to 16. It is emphasized that this is just a few examples, and that the method as described can also be implemented in many other ways. For the sake of understanding, the plate 1 with the original version will also be referred to as the original plate 52 below. The cut board 1 is also referred to as the final version 46. The panels 1 produced by performing the first sawing process stage are referred to as strips 53 and 54, respectively.

Fig. 13 and 14 show top views of the plates 1 and the cutting lines 4 respectively assigned to these plates. The cutting lines 4 indicate along which cutting lines 3 the respective plate 1 or the original plate 52 has to be sawed in order to produce the desired smaller final form 46 of the plate 1. For the plate 1 according to fig. 13 and the cutting line 4 provided for this purpose, two successive stages of the sawing process are carried out in order to completely divide the initial plate or the base plate 52 into the final versions 46. In both sawing process phases, the sawing process is carried out only at the cutting lines 3 which are parallel to each other. In the case of the original plate 52 according to fig. 13 or its cutting line 4, the sawing process takes place in a first sawing process stage along the cutting line 3 marked as first cutting line 48. The blank 52 is thus sawn into strips 53 and 54, wherein the punched scrap 47 is separated in addition to the trimming. Subsequently, in a subsequent second sawing step, the sheet 1 in the form of the webs 53 and 54, which is present as a result of the first sawing step, must be separated along the cutting line 3 indicated as second cutting line 49 into the sheet 1 in the form of the final pattern 46, wherein the punching trimmings 47 are also separated together in each case. For this, which is common in the prior art, the individual raw plates 52 shown in fig. 13 are first subjected to the entire sawing process of the first sawing process stage. Subsequently, in a second sawing process stage, the resulting plates 1 in the form of the strips 53 and 54 are sawn one after the other, wherein the strips 53 or 54 which have not been sawn in each case are temporarily stored.

If the initial plate 1 or the initial plate 52 according to fig. 14 and its cutting line 4 are now considered, a total of three sawing process stages are required in order to completely divide the plate 52 into the final patterns 46. The sawing process is carried out in a first sawing process stage along the cutting line 3 marked as a first cutting line 48 and then in a second sawing process stage along the cutting line 3 marked as a second cutting line 49. However, in order to completely separate the original plate 52, a sawing process must also be carried out in a third sawing step along the cutting lines 3 identified as third cutting lines 50.

Fig. 15 shows the initial sheet 1 or the initial sheet 52 stacked one above the other in the sheet stack 2 of fig. 13 and 14 with its cutting line 4, wherein in the top view shown the sheets are shown somewhat transparent so that the cutting lines 3 of the two cutting lines 4 are visible. The illustration in fig. 15 makes it possible to understand that the blank 52 according to fig. 13 is positioned on the blank 52 according to fig. 14, the cut lines 3 of the cutting lines 4 of the blank 52 being shown in dashed lines, these cut lines 3 not overlapping the corresponding cut lines 3 of the cutting lines 4 of the blank 52 according to fig. 13.

In fig. 15, it can be clearly seen in any case that the individual cutting lines 3 of the cutting lines 4 of the two original plates 52 in the form of the first cutting lines 48 are superimposed, while some of the second cutting lines 49 and in particular the cutting lines 3 in the form of the third cutting lines 50 are not superimposed.

In order to separate the two original plates 52 according to fig. 13 and 14 in the method according to the invention, as effective and as few sawing processes as possible, the following process is now carried out:

the two raw plates 52 of fig. 13 and 14 are stacked one on top of the other and aligned with each other before the first stage of the sawing process is performed. In a first sawing step, the plates 1 stacked one on top of the other are then separated as a plate stack 2 into the strips 53 and 54 by a sawing process of the plate stack 2 along the cutting lines 3 indicated as first cutting lines 48. After the end of the first sawing process stage, the two metal strips 53 shown in fig. 13, 14 and 15, respectively, above are temporarily stored as a plate pack 2. The slats 54 lying on top of one another are then unstacked on the lower slat 54 in fig. 13, 14 and 15. Subsequently, these unstacked panels 1 in the form of strips 54 are separated into their final pattern 46 by sawing along the cutting lines 3 in the form of the second cutting lines 49 and the cutting lines 3 in the form of the third cutting lines 50, respectively in the second sawing process stage and subsequently, if necessary, also in the third sawing process stage. In this case, the number of plates 1 stacked one on top of the other is different between the first sawing process stage and the second sawing process stage. Subsequently, two temporarily stored strips 53 stacked one on top of the other as before can be sawn in a second sawing step as a plate stack 2 along the cutting line 3 shown as the second cutting line 49, in order to also produce a plate 1 in the form of the final pattern 46 here.

This is of course only an example. In this case, for example, the sequence of the further dividing steps of the panel 1 in the form of the webs 53 and 54 can also be changed in comparison with the described procedure in the second sawing process stage and, if necessary, also in the third sawing process stage.

Fig. 16 now shows a third or original plate 1, 52, which likewise has to be sawn in accordance with a further cutting line 4. Unlike the original plate 52 of fig. 13 and 14, the cutting lines 3 which have to be sawn as first cutting lines 48 in the first sawing process stage are already located in this cutting line 4 of the plate 1 of fig. 16. This means that the first sawing step for dividing the panel 1 according to fig. 16 into strips 52 has to be carried out separately on the panel 1 or the original panel 52. This can be achieved, for example, as follows: the first sawing process stage is carried out on the raw plates 52 according to fig. 16 before the first sawing process stage of the raw plates 52 stacked one on top of the other according to fig. 13 and 14 begins. The strips 53 and 54 produced in the first sawing process stage on the original plate 52 according to fig. 16 can then be temporarily stored in the plate separating device until the second and third sawing process stages of the two lower strips 54 of fig. 13 and 14 have ended. The two lower strips 54 of the panel 1 according to fig. 16 can then be divided into the final pattern 46 by means of a corresponding second sawing process stage. Subsequently, the uppermost strip 53 of fig. 16 can be additionally stacked on two other strips 53 already stacked one above the other in fig. 13 and 14, so that a second sawing process stage for sawing the plate pack 2 along the respective second sawing line 49 is then carried out on the plate pack 2 consisting of three strips 53 stacked one above the other.

The variants of the method according to the invention, which are shown by way of example in fig. 13 to 16, can be implemented both on the plate separating device 7 shown in fig. 1 and on the plate separating device 7 shown in fig. 2, but also on plate separating devices 7 of other configurations.

With the board dividing devices 7 according to fig. 1 and 2, the entire sawing process is carried out here along all the cutting lines 3 at the respectively single sawing line 5 of the respective board dividing device 7. For this purpose, each plate 1 or plate stack 2 to be sawn is supplied in a respective first region 15 by a respective feed mechanism 16 to the respective sawing line 5 in a respective feed direction 17. The sometimes required sheet stacking and/or sheet unstacking is then carried out in the second region 18 by means of a corresponding operating device 8 or a corresponding plurality of operating devices 8. It is sometimes necessary to rotate the respective plate 1 or plate stack 2 and to retract the plate 1 or plate stack 2 to be sawn from the second region 18 into the first region 15 in the subsequent sawing process phase, respectively, which is likewise effected by the respective operating device 8, wherein, for the plate separating device 7 according to fig. 1, the retraction takes place exactly around the sawing line 5 in the second region 18 and over the sawing line 5 in the plate separating device 7 according to fig. 2. The alignment of the board 1 and/or the board stack 2 can be carried out in the manner described above between the individual sawing process stages.

List of reference numerals

1 board

2 plate pile

3 cutting line

4 cutting line

5 saw cutting line

6 saw

7 board segmentation equipment

8 operating device

9 suction hood

10 base body

11 slide block

12 clip

13 Splint

14 clamping plate pair

15 first region

16 feeding mechanism

17 direction of feed

18 second region

19 clip

20 workpiece support table

21 top pressure beam

22 alignment projection

23 alignment projection

24 stop rail

25 additional table

26 pre-carved saw blade

27 slide rail

28 slide rail

29 vertical axis

30 saw frame

31 top pressing beam upright post

32 contact roller

33 driving wheel

34 first driving member

35 second driving member

36 rotation driving part

37 slide driving piece

38 guide wheel

39 guide chute

40 clip driving member

41 suction joint

42 bristles

43 direction of motion

44 lifting platform

45 direction of motion

46 final form

47 punching press rim charge

48 first cutting line

49 second cutting line

50 third cut line

51 Main saw blade

52 original plate

53 lath

54 lath