EP0432225A1

EP0432225A1 - Device for cutting stacked sheet material.

Info

Publication number: EP0432225A1
Application number: EP90906136A
Authority: EP
Inventors: Wolfgang Mohr
Original assignee: Individual
Current assignee: Adolf Mohr Maschinenfabrik GmbH and Co KG
Priority date: 1989-07-04
Filing date: 1990-04-25
Publication date: 1991-06-19
Anticipated expiration: 2010-04-25
Also published as: DE3921886A1; WO1991000168A1; EP0432225B1; JPH0790507B2; US5279196A; JPH04500635A; ES2047325T3; DE3921886C2; DE59002306D1

Abstract

Un dispositif de découpage de feuilles empilées comprend une surface de support formée d'un champ d'admission (4) qui reçoit les feuilles (5) à découper, d'un champ de travail (3) au-dessus duquel sont agencés une lame de coupe (10) et un sommier de serrage (9), suivi d'un champ de sortie (22, 32) qui reçoit les feuilles découpées. Le champ de sortie est subdivisé en une première zone (22) adjacente au champ de travail (3) et en une deuxième zone (32) située en aval de la première. Une première règle (41) est agencée sous le champ de sortie à la hauteur de l'interface entre les deux zones (22, 32). La deuxième zone (32) peut être soulevée au-dessus d'une position où elle forme un seul plan avec la première zone (22). La première règle (41) peut elle aussi être soulevée et mise dans une position de travail où elle coopère avec la première zone (22) du champ de sortie. L'ensemble du champ de sortie peut se déplacer perpendiculairement au plan de découpage (13), créant un écartement entre le champ de sortie et le champ de travail.A device for cutting stacked sheets comprises a support surface formed by an inlet field (4) which receives the sheets (5) to be cut, by a working field (3) above which a blade is arranged. cutting (10) and a clamping base (9), followed by an output field (22, 32) which receives the cut sheets. The output field is subdivided into a first zone (22) adjacent to the work field (3) and into a second zone (32) located downstream from the first. A first rule (41) is arranged under the exit field at the height of the interface between the two zones (22, 32). The second zone (32) can be raised above a position where it forms a single plane with the first zone (22). The first rule (41) can also be lifted and put in a working position where it cooperates with the first zone (22) of the exit field. The entire output field can move perpendicular to the cutting plane (13), creating a gap between the output field and the working field.

Description

Device for cutting stacked, sheet-like material

The invention relates to a device for cutting stacked, sheet-like material, with a table surface which has a working area above which a cutting knife and a press beam are located, behind it an input field for receiving the material to be cut and, in front of it, an output field for receiving the cut material and with a feed device for the material to be cut, the starting field being movable relative to the working field with the formation of a gap and a transverse channel leading to a further processing step being provided on the starting field, which can be brought into a working position by means of an interaction with the starting field. first ruler and a second ruler located behind it is formed, which can be brought into its working position after opening the gap, and an ejector movable along the transverse channel is provided. Such a device is known from DE 36 13 316 C1, which is used as a second cutting device of a cutting system, in which a first cutting device is designed for the production of block strips by parallel longitudinal cuts, while the block strips are cut in the transverse direction with the second cutting device that individual blocks are created. The use of two cutting devices, each of which is designed for one function, namely longitudinal cutting on the one hand to produce the block strips and cross cutting of these block strips on the other hand, results in efficient production. A disadvantage of the known system is that two cutting devices are required to cut the block strips, which requires high system costs.

It is an object of the present invention to develop a device of the type mentioned so that with this, i.e. with a single cutting device, both functions of longitudinal and transverse cutting of the block strips are carried out with minimal manual effort and the cut blocks are simply fed to the further processing station can. In addition, the device should also make it possible to carry out conventional cutting operations, that is to say main, edge and intermediate cuts.

The object is achieved in that the output field is divided into a first field area adjacent to the working field and a second field area arranged in front of it, and the first ruler is arranged below the output field in the area of the separating surface of the two field areas, the second field area consisting of the position forming a plane with the first field area can be raised, and the first ruler can be raised and brought into the working position with the first field area of the starting field. A defined position is not mandatory under the working situation to understand the first ruler, but several positions of this ruler with respect to the first field area of the starting field are conceivable.

Due to the inventive design of the starting field with the first and the second field area, as well as the ruler arranged below the starting field, the desired different functions can be accomplished with the device. Thus, with the second field area lowered, which in this position forms a plane with the first field area and the working field and the input field, the device operates in accordance with the device described in European Patent 0 056 874. The first and the second field area hereby form a unit which can be moved in the direction of advance of the material to be cut and can be moved in the opposite direction, with the possibility of creating a gap between the latter and the working field for the disposal of the chips resulting from an edge or intermediate cut. When the second ruler is moved into its working position after the gap has been opened, this ruler pushes the cut benefit that extends beyond the first field area due to the inevitably recessed position of the cutting bar and the cutting knife, so that it does not become trapped when the gap is closed again can be. In addition, the second ruler ensures that the chips are disposed of through the gap in a defined manner and are not thrown onto the starting field. The cut panel can be freely manipulated on the exit field; the second ruler in the working position also allows the panel to be aligned with it. In contrast to this, the device fulfills the function of the second cutting device of the system described in DE 36 13 316 C1 when the second field area is raised and the second ruler is in the working position. It is essential here that the first ruler is brought to its working height at which it is above the level of the first field area located, in particular at the bottom with the level of the first field area and consequently a benefit located in the first field area can be manipulated by the latter. When the first ruler is used, a transverse channel is formed by this and the second ruler, through which the benefits, for example individual blocks of a block strip, can be fed to the further processing station by means of the movable ejector. Depending on the width of the panels, the width of the transverse channel can be changed by a corresponding adjusting movement of the first ruler perpendicular to the cutting plane. Regardless of this, of course, with the second field area raised, there is still the option of making edge and intermediate cuts after the actual benefits have been cut, the waste again being disposed of through the gap formed between the first field area and the working area and the second ruler as described above Functions.

The first ruler can be mounted differently, for example on the underside of the second field area or also on the top of a bearing part which is arranged parallel to the second field area below it, the first ruler being arranged between the bearing part and the second field area. The second field area and the bearing part are expediently connected to one another, in particular by lateral webs, so that they can be raised and lowered with one another. In order to be able to form a different width of the transverse channel, the second ruler, irrespective of its mounting, should be arranged in the feed direction of the material to be cut and displaceable in the opposite direction. The assembly of the first ruler in the bearing part for the second field area is regarded as the preferred embodiment, since in this case the storage and travelability of this ruler can be accomplished most easily. To process benefits of different widths too If possible, the first ruler should also be able to be moved into the area of the first field area, a transverse channel width being achievable only in the first field area up to that which extends over the first field area. With the large transverse channel width described last, it can be expedient if the bearing part forms a third field area of the starting field, which is arranged parallel to the second field area and can be raised into the plane of the first field area. When the second field area is raised, the large width benefit lies not only on the first field area but also on the third field area of the starting field. In this embodiment, it must be ensured that the clear distance between the second field area, specifically the underside of the component assigned to this field area, and the bearing part or the third field area of the starting field is greater than the maximum thickness of the cut material. With such a dimensioning, the maximum transverse channel width is defined by the position of the first ruler in its end position moved away from the first field area.

Constructively, the area of the device according to the invention is expediently designed such that a first table part is mounted horizontally in a base frame in the direction of advance of the material to be cut and is movable in the opposite direction, this table part accommodating the first field area of the exit field, lifting and lifting a second table part in the first table part is lowerable, which receives the bearing part arranged parallel to one another and the second field area of the starting field. The two table parts are expediently moved using pneumatic or hydraulic power means. The second table part is advantageously mounted in vertical guides of the first table part and the lifting elements for lifting and lowering the second table part act on a base for the second field area which can be removed from them and also on the first table part. Be with cut the device according to the invention over a longer period of time exclusively constant benefits that are fed by means of the ejector to the further processing station, it makes sense to make the second field area removable from the second table part, so that the cutting area and the area of the first ruler can be freely viewed by the operator and so that the cutting cycles can be monitored.

Particular embodiments of the device relate to the arrangement and travelability of the two rulers and in particular to the design of the second ruler. Since the first ruler serves the purpose of forming a correspondingly wide transverse channel as a function of the width of the cut, it is necessary to arrange this ruler in the direction of advance of the material to be cut and to be movable in opposite directions. In addition, this ruler should be movable between an end position assigned to the first field area and an end position assigned to the bearing part and in its working position should be substantially perpendicular to the table surface. The first ruler is also advantageously pivotally mounted between two working position positions, it being shown in a first position essentially corresponding to the slope and in a second position it is essentially perpendicular to the table surface. The same applies to the second ruler, which should also be essentially perpendicular to the table surface in its working position. In addition, it is considered expedient if the second ruler is arranged in its rest position under the first field area of the starting field and can be brought into its working position through the gap, in which it should extend over the entire length of the separating surface between the working field and the first field area of the starting field touch the rear edge of the first field area. The described design and arrangement of the second ruler makes it possible to effectively remove the chips resulting from edge or intermediate cuts through the gap dispose of, apart from this, the stationary ruler of the cross channel is formed on one side of the channel by the second ruler in its working position. In order to be able to push the benefits in both operating positions of the devices, i.e. lowered second field area or raised third bearing part without pinching the lower sheet layers onto the first field area of the working area, a movable support element upstream of the second ruler should be provided, which last Cut material that projects beyond the rear edge of the first field area is supported at least at the level of the cutting material support surface of this field area, the support element being moved back into the ruler plane when the working position of the second ruler is reached. In detail, the second ruler can be provided with at least one support element, which has an upper free end and is pivoted during the final horizontal transfer of the ruler to achieve its working position from a first to a second end position, such that the free end of the support element in the first end position swiveled out of the ruler contact surface in the direction of the starting field comes to lie below the plane formed by the product support surface of the field area and in the second end position swung into the ruler at least in the plane of the product support surface of the field area. In addition, the second ruler, on its surface facing the material to be cut, can accommodate a contact ruler that can be placed on this surface of the material to be cut. By means of this contact ruler it is possible to align the side of the stacked, sheet-like material facing away from the feed device on the work area. The ruler should be able to be applied to the material to be cut, at least in the area of the upper leaves. In practice, it has been shown that, after the pressing of the material, which is necessary for a perfect cutting process, in particular the upper sheet layers are pulled away from the feed unit. The reason is usually to be seen in the fact that with a high pressure of the material to be cut, air inclusions between the individual sheet layers are squeezed out, which leads to a reduction in the height of the stack to be cut in the region of the press beam and consequently to a rise of the press beam that upper sheet layers are undesirably moved far into the area of the cutting knife, with the risk of subsequent incorrect cuts.

Further features of the invention are shown in the description of the figures and in the subclaims, it being noted that all individual features and all combinations of individual features are essential to the invention.

In the figures, the invention is shown schematically on the basis of two embodiments, without being limited to these. It shows:

1 shows a side view of a first embodiment of the device according to the invention, in which the output field has a first field area, a second field area arranged in front of it and a third field area arranged below this, with a first and second field area forming a plane with the gap closed before an edge cut,

FIG. 2 shows a side view of the device according to FIG. 1 with the gap open after the edge cut,

FIG. 3 shows a side view of the device according to FIG. 1 before the main section,

FIG. 4 shows a side view of the device according to FIG. 1 after several main cuts, with the gap open and the second ruler extended,

FIG. 5 shows a view of the device according to arrow A in FIG. 2, FIG. 6 shows a view of the device according to arrow B in FIG. 2,

FIG. 7 shows a side view of the device according to FIG. 1 with the first and third field regions of the starting field forming a plane, with the gap closed,

FIG. 8 shows a side view of the device according to FIG. 7 with the gap open and the first and second rulers in the working position,

FIG. 9 shows a detailed view of the second ruler, shown before the partial stack is pushed onto the first field area of the starting field,

FIG. 10 shows a detailed view according to FIG. 9 after the pushing-over process with the second ruler moved in the direction of the working field,

Figure 11 is a side view of the device according to a second

Embodiment in which the output field has a first field area, a second field area located in front of it and a bearing part located underneath it for receiving the first ruler, with the first and second field areas of the output field forming a plane with the gap closed after the main cut,

FIG. 12 shows a side view of the device according to FIG. 11, after the main cut, with the gap open and the second ruler extended, following the subsequent intermediate cut,

FIG. 13 shows a side view of the device according to FIG. 11, with the bearing part raised and thus the first ruler raised, after a main cut, with the gap open and the second ruler in the working position, and the first ruler in a first, inclined working position,

FIG. 14 shows a side view of the device according to FIG. 13 with the first ruler moved into the second, vertical working position and the ejector lowered behind the panel. Figures 1, 5 and 6 illustrate the basic structure of the cutting device forming a structural unit, which is designed in the form of a face cutting machine. A work area 3 is formed on a stationary base frame 1 in the front area of the table surface 2 and an input area 4 in the rear area. The input field serves to receive the material 5 to be cut, for example a sheet stack formed from individual sheet layers. By means of a feed device 6 designed as a saddle, the material 5 to be cut can be moved in the feed direction according to arrow C. The material 5 to be cut is aligned on one side with a side stop 7. In a frame part 8 which is connected to the base frame 1 and extends above the table surface 2, a vertically movable press beam 9 and a likewise vertically movable cutting knife 10 are arranged above the working area 3. The latter interacts with a cutting bar 11 embedded in the table surface 2 of the base frame 1, which, for static reasons, is slightly set back from the front edge 12 of the table surface 2. Reference number 13 shows the cutting plane of the cutting knife 10.

Connected to the base frame 1 are two supports 14 which also form part of the base frame and are spaced apart and parallel to one another. Corresponding to the horizontal arrangement of the table surface 2, the supports 14 have horizontal guide rails 15, in which a table part 16 is mounted in the feed direction C and can be moved in the opposite direction. For this purpose, each carrier 14 is assigned a pneumatic cylinder 17, the respective cylinder housing 18 of which is attached to the underside of the table part 16 and the piston rod 19 of which is attached to the respective carrier 14.

As can additionally be seen from the illustration in FIG. 4, the table part has in its rear, that is to say that Base frame 1 facing area four connected to this and upward bearing webs 20, with the upper ends of a horizontal table top 21 is fixedly connected. This extends over the same width of the device as the table surface 2, the table surface of the table top 21 is referred to below as the first field region 22 of an exit field for the cut material, it forms a plane with the table surface 2 of the input field 4 and work field 3. The table top 21 is connected in the region of its front end 23 to the bearing webs 20, when the piston rods 19 of the pneumatic cylinder 17 are retracted for the horizontal movement of the table part 16, the table top 21 lies with its rear end 24 on the front edge 12 of the table surface 2 of the base frame 1, while at extended piston rods 19, the table top 21 is horizontally moved away from the base frame 1 and thus a gap 25 is formed between the base frame 1 and the table top 21.

In the front, upwardly cranked area of the table part 16, two pneumatic cylinders 26 are arranged one behind the other on each carrier side in the feed direction C, the respective cylinder housing 27 of which is firmly connected to the table part 16 and the vertically displaceable piston rod 28 of which is connected to a table plate 29. The table top 29 has a corresponding width as the table top 21, it is also rectangular, but is provided with a V-shaped incision 31 in the front area symmetrically to the central longitudinal axis 30. In the outer area of the incision 31, the four pneumatic cylinders 26 engage in pairs on the underside of the table top 29. When the piston rods 28 are retracted, the table surface of the table top 29, which is referred to below as the second field region 32 of the output field, forms a plane with the first field region 22 of the output field. The rear end 33 of the table top 29 is in the immediate vicinity, that is, as close as possible to the front end 23 of the Table top 21 arranged.

In the area of the two outer sides of the table top 29, a connecting plate 34 is fastened to the underside of the table top, the two connecting plates 34 receive another table top 35 between them in the area of their lower end. The width of the table top 35 corresponds to the width of the table top 29, but the table top 35 is shorter than the table top 29, the area surrounding the incision 31 is omitted there. The vertical distance between the table tops 29 and 35 is greater than the maximum height of the material 5 to be cut. In the extended position of the piston rods 28 of the pneumatic cylinders 26, the table top 35 is raised so far that its table surface, hereinafter referred to as the third field region 36 of the starting field is, forms a plane with the first field area 22 of the starting field. In this position, the rear end 37 of the table top 35 is adjacent to the front end 23 of the first field area 22 of the starting field.

In the area of each outer side of the table top 35, this accommodates toothed racks 38 which are arranged parallel to one another and can be moved in the feed direction C or in the opposite direction and which can be driven synchronously via a common drive 40 which is also mounted in the table top 35 and has gears (not shown in more detail). The toothed racks are positioned parallel and at a minimal distance from the table top 35; in the area of their respective rear free end, they pivotally accommodate a first ruler 41 in the area of the lower edge thereof. Spaced from the pivot axis 42 of the first ruler 41, a pneumatic cylinder 43 assigned to each rack 38 engages with its piston rod 44 on the first ruler 41, so that this extends from a first position oriented perpendicular to the table top 35 when the piston rods 44 are extended in an acute angle in the feed direction C inclined position when the piston rods 44 are retracted. The cylinder housing 45 of the pneumatic cylinder 43 are mounted in a manner not shown in such a way that they are moved together with the feed spindles 38. By means of the toothed racks 38, the first ruler 41 can be moved in the feed direction C to the two bearings 39 of the racks 38 adjacent to it and opposite to the feed direction C via the rear end 37 of the table top 35, with which maximum strip formats which cover both the first field area and partially covering the third field area can be worked on.

A vertically acting pneumatic cylinder 46 is fastened to the two table parts 16 adjacent to the base frame 1, the piston rods 47 of the pneumatic cylinders 46 receiving between them a likewise plate-shaped ruler 48, hereinafter referred to as the second ruler. The vertically movable and vertically oriented ruler 48 is positioned so that it can be moved past the rear end 24 of the table top 21 at a small distance with a maximum open gap 25. In the lifting position of the ruler 48, its upper edge 49 is at least slightly above the uppermost sheet layer of the material 5 to be cut. The ruler 48 has a length that corresponds to the width of the table top 21.

Finally, a further, vertically acting pneumatic cylinder 50 is mounted in the frame part 8, the piston rod 51 of which is provided with a bearing web 52 which extends in the feed direction C and on the underside of which an ejector 53 is fastened. The ejector 53 is positioned such that it is above the table top 21 when the gap 25 is open to the maximum. When the piston rod 51 is retracted, the lower edge of the ejector 53 is at a level which is higher than the level of the uppermost sheet layer of the material 5 to be cut; when the piston rod 51 is extended, the ejector 53 lies on the table top 21 on. The ejector 53 itself is designed as a rod-shaped part, the rod length is greater than the maximum thickness of the material 5 to be cut. The cylinder housing 54 of the pneumatic cylinder 5 is mounted in a horizontal guide 56 of the frame part 8 via a bearing element 55 and via a horizontally acting one, not shown Pneumatic cylinder movable perpendicular to the feed direction. On both sides of the frame part 8, this is provided at the top with forwardly directed support rods 57 and at the front end of these support rods 57, downwardly directed support rods 58, which in turn accommodate light barrier arrangements 59 in their lower region. The output field area assigned to this light barrier arrangement 59 thus represents the operator side of the face cutting machine, the operator is in the area of the incision 31.

The mode of operation of the device according to the invention is described below with reference to the figures:

When the table top is lowered, in which the input field 4, the working field 3, the first field area 22 of the output field and the second field area 32 of the output field form a plane, the device operates in accordance with the device described in European Patent 0 056 874. Edge, intermediate and main cuts can thus be carried out with the device in a known manner. Figure 1 shows the device before an edge cut. By means of the feed device 6, the material 5 to be cut is advanced beyond the cutting plane 16 by the thickness of the edge cut to be cut. Before the edge cut is made, the table part 16 is moved away from the base frame 1 by acting on the two pneumatic cylinders 17, thus forming the gap 25 between the rear end 24 of the table top 21 and the front edge 12 of the table surface 2 of the two pneumatic cylinders 46 move the second ruler 48 into the extended position, so that during the subsequent edge cut, the cut or possibly brittle material to be cut in this cut cannot be thrown onto the table tops 21 and 29, but can be disposed of downward through the gap 25, by getting there on a conveyor belt, for example. On the side facing the material 5 to be cut, the second ruler 48 is provided at the top with a contact ruler 60 which is mounted in the second ruler 48 by means of two spaced-apart scissors 61. Each scissor 61 is assigned a pneumatic cylinder 62 for opening and closing the scissors 61, so that the contact ruler 60 can thereby be moved against the front surface 63 of the material 5 to be cut. This makes it possible to reverse displacements, in particular of the upper sheet layers, after loosening the press beam 9 following the cutting process by renewed application of these sheet layers to the feed device 6 (see FIGS. 9 and 10). After all the edges of the material to be cut, which has previously been presented as a block, have been trimmed, the actual main cuts, in which the benefits are obtained, and the respective intermediate cut between two main cuts. Figure 3 illustrates the position of the material 5 to be cut before a main cut. The material 5 to be cut has been displaced in the feed direction C by the feed device 6 until the main cutting position is reached. After the block has been cut, there is a benefit shifted in parallelogram shape due to the wedge-shaped design of the cutting knife, that is to say cut good 5 ', which, due to the arrangement of the cutting bar 11 in the table surface 2, also lies slightly on the table surface 2. When opening the gap 25 for the purpose of an intermediate cut, the cut material 5 'thus hangs slightly over the rear end 24 of the table top 21 with the risk that when the gap 25 is closed again, this region of the cut material 5 'is pinched. FIG. 9 illustrates that after reaching the maximally open gap 25, the second ruler 48 moved into the raised position engages under the overhanging area of the material 5 ′ to be cut with a plate-shaped support element 64. The support element is pivotally mounted below the table top 21 in the second ruler 48 and can be pivoted in against the force of several springs 65, only one of which is visible, in a recess 66 in the second ruler 48, so that the support element 64 is level with the second ruler 48 forms. If, starting from the support position of the support element 64 shown in FIG. 9, the table top 21 is moved in the direction of the second ruler 48 by acting on the table part 16 by means of the pneumatic cylinder 17, this leads to the cut goods 5 ′ being pushed completely onto the table top 21. FIG. 4 illustrates this the conditions following a second main cut: the second ruler 48 is extended, by a slight movement of the table top 21 in the sense of a closing movement, the last cut panel 5 'has been pushed completely onto the table top 21 and thus has the initially cut panel 5' pushed on the table top 29. The positioning ruler 60 is then moved against the front surface of the material 5 to be cut, the position of the second ruler 48 shown in the illustration in FIG. 10 is intended to clarify that additional horizontal travelability of the second ruler 48, in particular in the direction of the one to be cut, is certainly also intended Good 5 can be provided. The material 5 to be cut is severed in the cutting sequence main cut, intermediate cut, main cut, intermediate cut, etc. until the material 5 to be cut is completely cut.

If the cut material 5 'present in block strips is to be cut further into individual blocks, this can in principle be done by cutting the cut material 5' by means of a Utility angle is manually aligned on the second ruler 48, with which it has the shape of a rectangular block, then rotated by 90 ° and then fed to the work area 3 again as the good 5 to be cut. Subsequently, the table top 29 and thus also the table top 35 is raised by acting on the pneumatic cylinder 26, into a position in which the table top 35 forms a plane with the table top 21. In this position, the workflow relating to the cutting of the block strips into individual blocks takes place in accordance with that described in DE 36 13 316 C1: First, the individual block strips are pushed forward by the feed device 6 in a thickness desired for a first main cut. The first ruler 41 is moved from the vertical inclined position by means of the feed spindles 38 against the lower region of the material 5 to be cut. After the cut, the situation shown in FIG. 7 results, in which the individual blocks are again shifted in a parallelogram shape and are supported by the first ruler 41. The table part 16 and thus the table tops 21 and 35 are then moved away from the base frame 1 by acting on the pneumatic cylinders 17, forming the gap 25. The second ruler 48 is then extended and the first ruler 41 is transferred by acting on the table Pneumatic cylinder 43 in its vertical position, with which the individual blocks are erected again. A transverse channel 47 is now formed between the first ruler 41 and the second ruler 48, through which the individual blocks can be pushed out to a further processing station after the ejector 53 has been lowered. In any case, an intermediate cut can be made during this pushing-out process; after the gap 25 has been closed, the next main cut then takes place.

In Figures 11 to 14 related to the second embodiment of the invention parts shown with those according to the the first embodiment according to Figures 1 to 10, are referred to below for the sake of simplicity with the same reference numerals, insofar as the structure and mode of operation of the two embodiments match, furthermore, for the sake of simplicity, their explanation in the second embodiment is omitted and, in this respect, the explanations relating to the figures 1 to 10 referenced.

As can be seen from the illustration in FIG. 11, the horizontally movable table part 16 has, in the region of its end facing away from the cutting plane, an upwardly extending extension 68 which has two pneumatic cylinders 26 spaced apart from one another on its side facing the cutting plane. Their vertically extendable piston rods 28 engage on the underside of a plate-shaped, horizontally oriented base 69, into which the table top 29, to which the second field area 32 of the starting field is assigned, can be inserted via plug elements (not shown). A vertically arranged strut 70, which extends over the width of the table top 29, connects the underside of the support 69 to the end of the table top 35 facing away from the cutting plane, which is arranged parallel to the table top 29. The table top 35 serves exclusively as a bearing part for the first ruler 41; in contrast to the previously described embodiment, it therefore does not comprise a third field region 36 of the starting field and, with its end edge facing the cutting plane, also ends at a greater distance from the facing edge of the table top 21 to which the first field area 22 of the output field is assigned.

The possibility of removing the table top 29 from the support 69 serves the purpose of enabling the operator to check the cutting process unhindered when the first ruler 41 is at working height. The table top 29 will so that they are always removed if, over a longer period of time, block-like panels are to be cut and fed to a further processing station using the first ruler 41.

On the table top 35, a feed cylinder 71 can be moved in the feed direction and in the opposite direction in a manner to be described in more detail below. The piston rod 72 of the feed cylinder 71 is positioned at a short distance from the surface of the table top 35 and, with its free end facing the cutting plane, pivots on the lower end of the first ruler 41.

The pneumatic cylinder 43 is mounted on top of the feed cylinder 71, the piston rod 44 pivotably engaging the first ruler 41 at a distance from the pivot point thereof.

When the piston rods 28 of the pneumatic cylinders 26 are extended, the support 69 which supports the table top 29 lifts the table top 35 and the delivery cylinder 71 with the pneumatic cylinder 43 and the first ruler 41 via the strut 70. The exact stroke movement of the further table part 73 essentially formed by the base 69 with the table top 29, the strut 70 and the table top 35 ensure lateral guides (not shown in more detail) for the table top 35 and the base 69. As can be seen particularly clearly from the representation of the raised position of the table part 73 according to the representation of FIGS. 13 and 14, the feed cylinder 71 is connected via vertical guides 74 to a format setting slide 75 which can be moved in the feed direction and in the opposite direction by means of two feed spindles 76 arranged parallel to one another is. The format setting slide 75 is guided in the horizontally extending area of the table part 16, the feed spindles 76 driving it are also present a drive 40 in connection, which is mounted in the vertical region of the table part 16. When the table part 35 is lifted, the vertical guides 74, which are firmly connected to the feed cylinder 71, move relatively in the associated guide surfaces of the format setting slide 75. In the raised position of the table top 35, the feed cylinder 71 can then be moved against the feed direction by a corresponding movement of the format setting slide 75, with which a defined utility format between the first ruler 41 and the second ruler 48, which can also be pivoted, can be specified. In detail, the table top 35 is provided with elongated holes, not shown, which extend through the feed direction and penetrate the plate-shaped vertical guides 74 oriented in the feed direction and thus ensure that the feed cylinder 71 is not only moved over it but also guided on the table top 35.

Figure 11 shows the device with the table top 29 lowered, where the starting field consists of the first field area 22 assigned to the table top 21, the second field area 32 assigned to the table top 29, and a further field area 78 adjoining it, which defines the upper limit of the extension 68 of the table top represents first table part 16, composed. FIG. 11 shows the device in this basic arrangement of the starting field following a main cut, FIG. 12 with the gap open and the second ruler 48 extended, which has pushed the cut benefit completely onto the first field region 22 of the starting field. The benefit can be both block strips and blocks. 13 and 14, it should also be assumed that blocks are already on the table top 21. When the format setting slide 75 is retracted, that is to say moved in the feed direction, the table part 73 is extended by means of the pneumatic cylinders 26. the first ruler 41 being positioned with its lower end slightly spaced apart from the plane of the first field region 22 of the starting field. The format setting slide 75 is then moved in the direction of the cutting plane in accordance with the format of the blocks to be cut. According to the illustration in FIG. 7, the situation shown in FIG. 13 arises after the cut, in which the individual blocks are displaced in parallel and are supported by the first ruler 41 when the feed cylinders 71 are retracted. The second ruler 48 is then extended in the feed direction after the first table part 16 has been moved horizontally, the format setting slide 75 being moved away from the good by the amount of the push-over amount before the cut material is moved over by the second ruler 48. After swiveling the first ruler 41 into its vertical position by means of the pneumatic cylinders 43 and lowering the ejector 53 behind the blocks, the situation shown in FIG. 14 results before the blocks are ejected.

B e z u g s z e i c h e n l i s t e

Base frame

Table surface

Field of work

Entrance field

good to be cut

cut good

Feed device

firm stop

Frame part

Press beam

Cutting knife

Cutting bar

Leading edge

Cutting plane

carrier

Guide rail

Table part

Pneumatic cylinder

Cylinder housing

Piston rod

Footbridge

Table top

first field area of the starting field front end

rear end

gap

Pneumatic cylinder

Cylinder housing

Piston rod

Table top

Central longitudinal axis incision

second field area of the starting field at the rear end

Connecting plate

Table top

third field area of the exit field at the rear end

Rack

camp

drive

first ruler

Swivel axis

Pneumatic cylinder

Piston rod

Cylinder housing

Pneumatic cylinder

Piston rod

second ruler

Top edge

Pneumatic cylinder

Piston rod

Footbridge

Ejector

Cylinder housing

Bearing element

Horizontal guidance

Support rod

Photoelectric sensor arrangement

Ruler

Scissors

Pneumatic cylinder

front surface

Support element feather

Recess

Cross channel

approach

document

strut

Delivery cylinder

Piston rod

Table part

Vertical guidance

Format setting slide

Feed spindle

Field area

Claims

Patent claims

1.Device for cutting stacked, sheet-like material, with a table surface which has a working area above which there is a cutting knife and a press beam, an input field for receiving the material to be cut and an output field for receiving the cut material in front of it and with a feed device for the material to be cut, the starting field being movable relative to the working field with the formation of a gap and a transverse channel leading to a further processing station being provided on the starting field, which can be brought into a working position by means of a first ruler and an interactable with the starting field a second ruler behind it is formed, which can be brought into its working position after opening the gap, and an ejector movable along the transverse channel is provided, characterized in that the output field (22, 32) is adjacent to the working field (3) Field area (22) and one of them r arranged second field area (32) is subdivided, and below the output field in the area of the separating surface of the two field areas (22, 32) the first ruler (41) is arranged, the second field area (32) consisting of a plane with the first Field area (22) forming position can be raised, and the first ruler (41) can be raised and brought into the working position with the first field area (22) of the starting field.

2. Device according to claim 1, characterized in that a bearing part (35) for the first ruler (41) is arranged parallel to the second field area (32) below this, the ruler (41) between the bearing part (35) and the second Field area (32) is arranged, as well as the second Field area (32) and the bearing part (35) are connected to one another (parts 34; 70) and can be raised and lowered with one another.

3. Apparatus according to claim 2, characterized in that the clear distance between the second field region (32) of the starting field and the bearing part (35) is greater than the maximum stack thickness of the material to be cut (5 ').

4. Apparatus according to claim 2 or 3, characterized in that the transverse channel width is approximately as large as the extent of the first field region (22) between the working field (3) and the second field region (32) of the output field.

5. Device according to one of claims 1 to 4, characterized in that in a base frame (1, 14, 14) a first table part (16) is mounted horizontally in the feed direction (C) of the material to be cut (5) and movable in opposite directions, wherein this table part (16) receives the first field area (22) of the starting field, in the first table part (16) a second table part (73) is mounted such that it can be raised and lowered, said bearing part (35) and the second field area (32 ) of the starting field.

6. The device according to claim 5, characterized in that the second table part (73) is mounted in vertical guides of the first table part (16) and lifting members (26) for lifting and lowering the second table part (73) on a base (69) for attack the second field area (32) that can be removed and on the first table part (16).

7. Device according to one of claims 1 to 6, characterized characterized in that the first ruler (41) is mounted in the bearing part (35).

8. Device according to one of claims 1 to 7, characterized in that the first ruler (41) in the feed direction (C) of the material to be cut (5) and can be moved in opposite directions.

9. The device according to claim 8, characterized in that the first ruler (41) between an end position assigned to the first field region (22) and an end position assigned to the bearing part (35) can be moved.

10. Device according to one of claims 1 to 9, characterized in that the first ruler (41) is pivotable between two working position positions, wherein it is inclined in a first position substantially according to the slope of the cutting knife (10) and in a second position is substantially perpendicular to the table surface (2, 22).

11. Device according to one of claims 1 to 10, characterized in that the bearing part (35) forms a third field region (35) of the output field, which is arranged parallel to the second field region (32) and can be raised into the plane of the first field region (22) is.

12. Device according to one of claims 1 to 11, characterized in that the second ruler (48) is arranged in its rest position under the first field region (22) of the starting field and can be brought into its working position through the gap (25), in which it over the entire length of the separating surface between the working field (3) and the first field area (22) of the starting field at the rear edge (24) of the first Field area (22) abuts and is substantially perpendicular to the table surface (2, 22, 32).

13. The apparatus according to claim 12, characterized by a second ruler (48) upstream movable support element (64), the last cut, over the rear edge (24) of the first field region (22) projecting good (5 ') at least at the level of Cutting material support surface of this field area (22) is supported, the support element (64) being moved back into the ruler plane when the working position of the second ruler (48) is reached.

14. The apparatus according to claim 13, characterized in that the second ruler (48) is provided with at least one support element (64), the support element (64) having an upper free end and with a final relative movement of the second ruler (48) and first field area

(22) to reach the working position of the second ruler (48) is pivoted from a first to a second end position, such that the free end of the support element (64) in the first, swung out of the ruler contact surface in the direction of the first field area (22) End position below the plane formed by the cutting material support surface of this field area (22) and in the second end position pivoted into the ruler (48) at least in the plane of the cutting material support surface of this field area

(22) comes to rest.

15. The device according to one of claims 1 to 14, characterized in that the second ruler (48) on its surface to be cut the good (5) facing surface on this surface of the good to be cut (5) can be applied ruler (60).

16. The apparatus according to claim 15, »characterized in that the contact ruler (60) at least in the area of the upper sheets of the material to be cut (5) can be applied to this.

17. The apparatus of claim 15 or 16, characterized in that the contact ruler (60) is mounted in the second ruler (48) by means of several scissors (61).