Stack cutting device with supporting element

Abstract

The invention relates to a stack cutting device (01), comprising a cutting mechanism (13) for cutting a stack of individual sheets (26), a front placing device (11) with a front stack placing surface (04), a rear placing device (68) with a rear stack placing surface (69), and a cutting gap (76) arranged therebetween, wherein a workbench plane (E) includes the front stack placing surface (04), and the cutting mechanism (13) comprises a movable upper knife (18), a lower knife (77) with a cutting edge (81), and a cutting aid (23) for fixing the stack of individual sheets (26), wherein the cutting aid can be numerically moved and moved along a conveying plane (81) provided for conveying the stack of individual sheets (26). The path is arranged before the upper knife (18), and the first cutting mechanism (13) has a movable supporting element (78), which has a contact surface (79) configured to support a single paper (71) and is arranged movably between at least a supporting position and a handling position, and when the supporting element (78) is arranged in the supporting position, at least one contact surface (79) of the supporting element (78) is arranged in and / or below the first workbench plane (E), and when the supporting element (78) is arranged in the supporting position, at least one contact surface (79) of the supporting element (78) is arranged closer to the cutting edge (81) of the lower knife (77) than when the supporting element is arranged in the handling position (78).

Description

Technical Field

[0001] The invention relates to a stack cutting device having a supporting element. Background Art

[0002] A stack cutting device is known which has an upper knife that can be lowered and a fixed lower knife. In this way, the stack of printed sheets is separated from the stack of individual sheets. In this case, the cutting edge of the upper knife must be at least one section lower than the cutting edge of the lower knife in order to be able to carry out the cutting process completely. In particular, when edge cutting is carried out, it may happen that the part of the lowest individual sheet that extends beyond the lower knife is bent downward. If the cutting edge of the upper knife is then guided past the cutting edge of the lower knife, the lowest individual sheet can be folded around the cutting edge of the lower knife, especially in the case of thin individual sheets. This may result in the lowest individual sheet not being cut cleanly, but, for example, only having one layer scraped off. The part that actually needs to be separated then remains on the lowest individual sheet and causes problems during further processing.

[0003] EP 1 018 408 A1 discloses a stack cutting device having a cutting mechanism with a pivotable scale, by means of which the separated stack of printed sheets can be laterally retained in shape when the separated scale is erected after the cutting process.

[0004] DE 10 2009 053 975 A1 discloses a stack cutting device having a movable protective element which, on the one hand, is intended to prevent the cut paper strip from reaching the front table and, on the other hand, can slide the partial stack onto the front table after cutting.

[0005] A stack cutting device is known from DD 62300 B1, in which a stack of individual sheets is conveyed through a cutting gap in order to be cut by an upper knife arranged behind the cutting gap and cooperating with a cutting strip. A pivotable bridge element is arranged in the cutting gap.

[0006] A device for cutting book stacks is known from DE 38 29 682 A1. This device has a cutting strip that cooperates with an upper knife arranged behind a cutting gap. A pivotable bridge element is arranged in the cutting gap.

[0007] By a known a kind of stacking cutting device of FR1150136A, described stacking cutting device has the top knife that cooperates with cutting strip.In the zone behind the knife, stacking and placing face can be folded down, to form space, can discharge waste material by this space.

[0008] A device for cutting books is known from US 3913750 A and US 3146650 A, which has an upper knife and a lower knife with cutting edges. The knife is arranged behind a gap in the conveying direction. The gap can be covered by a pivotable bridge element.

[0009] DE3302946A1 and DE3513418A1 disclose a device for cutting books, which has an upper knife that cooperates with a cutting strip. The knife is arranged at the rear end of the cutting gap. A bridge element is provided for conveying the book through the cutting gap.

[0010] WO 91 / 00168 A1 and US 2007 / 0227323 A1 each disclose a device for cutting a stack of individual sheets, the device having an upper knife that cooperates with a cutting strip. According to WO 91 / 00168 A1, the cut material is transported away using a linearly movable table. US 2007 / 0227323 A1 has a bridge element that must be opened during cutting in order to transport away the cut material.

[0011] EP 1 129 972 A2 discloses a device for cutting the edge of a book. Summary of the invention

[0012] The object of the present invention is to provide a stack cutting device having a supporting element.

[0013] The stack cutting device has at least one, in particular first, cutting mechanism for cutting at least one stack of individual sheets, in particular a cutting mechanism for cutting the stack of individual sheets into stacks of printed sheets. The stack cutting device has at least one first front placement device, which has a first front stack placement surface. The first, at least temporarily horizontal, worktable plane at least partially and preferably completely encompasses the first front stack placement surface. The first stack cutting mechanism particularly preferably has at least one first rear placement device, which has a first rear stack placement surface. Preferably, a cutting gap is arranged between the first front stack placement surface and the first rear stack placement surface. In particular, the first stack cutting mechanism has at least one movable upper knife and at least one, in particular fixed lower knife. The lower knife preferably has a cutting edge. The first cutting mechanism preferably has at least one first cutting aid for fixing the single-sheet stack, which is arranged to be movable at least with respect to the vertical direction and is arranged before the first upper knife along a conveying path provided for conveying single-sheet stacks and / or intermediate stacks and / or printed sheet stacks.

[0014] In particular, the first stack cutting mechanism has at least one movable support element, which has at least one contact surface arranged for supporting the single sheet, in particular from below, and the support element is arranged movably between at least a support position and at least one first disposal position, for example, it can be switched, in particular it can be pivoted. When the support element is arranged in the support position, at least one contact surface of the support element is arranged in and / or below the first workbench plane. When the support element is arranged in the support position, at least one contact surface of the support element is arranged closer to the cutting edge of the lower knife, in particular fixed in position and / or below, than when the support element is arranged in the disposal position. This provides the advantage that even a very short end of the lowest single sheet of the stack can be supported from below to prevent the end from bending when the upper knife is lowered and only partially scraped instead of being cut off neatly. It can also be ensured that the paper end does not accidentally enter the gap during the feeding of the single sheet, which is necessary to provide space for the upper knife. Preferably, when the support element is arranged in the disposal position, at least one contact surface of the support element is at least partially and further preferably completely arranged below the first workbench plane.

[0015] In a further development, the stack cutting device is characterized in that the support element is arranged so as to be pivotable about the switching axis. This offers the advantage that a relatively simple movement can be performed and only a small amount of installation space is required.

[0016] In an alternative or additional improvement, the stack cutting device is preferably characterized in that the first cutting mechanism has at least one bridging element, in particular different from the supporting element, which can be moved between at least one transfer position and at least one interruption position. The bridging element preferably has at least one supporting surface. Preferably, when the bridging element is arranged in the transfer position, the placement surface of the bridging element is preferably completely located in the first workbench plane and / or has a vertical normal vector. When the bridging element is arranged in the interruption position, the support surface of the bridging element is preferably located outside the first workbench plane by at least 50%, further preferably at least 75%, further further preferably at least 95% and even further preferably at least 99%, and / or has a normal vector that deviates from the vertical direction. This provides the advantage that even those parts of the single-sheet stack that are to be separated and further processed can be appropriately transferred to the next placement surface and the advantages of the supporting element are still retained.

[0017] In an alternative or additional development, the stack cutting device is preferably characterized in that at least one bridging element is arranged pivotably about a pivot axis. This offers the advantage that a relatively simple movement can be performed and only a small amount of structural space is required. In an alternative or additional development, the stack cutting device is preferably characterized in that at least one supporting element and at least one bridging element are rigidly connected to one another and / or can be pivoted together about a switching axis. This has the advantage that only one drive system is required to perform both movements.

[0018] In an alternative or additional improvement, the stack cutting device is preferably characterized in that the first cutting mechanism has at least one shielding element, which can be moved between at least one shielding position and at least one open position. Preferably, when the shielding element is arranged in its shielding position, the shielding element is at least partially arranged above the first workbench plane. When the shielding element is arranged in its open position, the shielding element is preferably arranged completely below the first workbench plane. This has the advantage that waste segments are only produced in the area provided for it. Preferably, at least one shielding element is rigidly arranged relative to at least one supporting element and / or rigidly arranged relative to at least one bridging element. In this way, a common drive can be used again.

[0019] In an alternative or additional development, the stack cutting device is preferably characterized in that the surface normal of the contact surface of the support element and the surface normal of the support surface of the bridge element enclose an angle of at least 30°, more preferably at least 45°, more preferably at least 60°, even more preferably at least 80° and at most 150°, more preferably at most 135°, even more preferably at most 120°, even more preferably at most 100°. This offers the advantage that, depending on the pivot position, the support element or the contact element is used and the respective other support element or contact element does not block the path.

[0020] At least one supporting element is arranged at least in its supporting position and preferably always between the first front stacking placement surface and the first rear stacking placement surface, in particular along the transport path provided for the sheet stack. Thus, only a small amount of structural space is required.

[0021] In an alternative or additional development, the stack cutting device is preferably characterized in that the first stack cutting mechanism has at least one lowerable cutting aid for pressing a part of the respective sheet stack against the first front stack placement surface and / or the first stack cutting mechanism has at least one lowerable pressure element for pressing the part of the respective stack, in particular the part to be separated, against the first rear stack placement surface. This allows particularly clean cutting to be achieved.

[0022] In alternative or additional improvement, the preferred advantage of the stacking cutting device is that the guide surface for influencing the falling path of the separated stacking component is arranged below the upper knife. Then, the scrap segment can be easily transmitted along the transmission path provided for it, for example, transmitted to the scrap segment container. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Exemplary embodiments of the invention are shown in the drawings and are described in more detail below.

[0024] in:

[0025] Figure 1 A schematic diagram showing a stack cutting device in a top view;

[0026] Figure 2 A schematic diagram of a first cutting mechanism is shown in a side view, wherein the switching device is arranged in the feed state and the supporting element is arranged in the feed position and the bridging element is arranged in the interruption position and the shielding element is arranged in the shielding position and the edge region of the sheet stack projects beyond the lower knife;

[0027] Figure 3 Show according to Figure 2 Schematic diagram of a, wherein the switching device is arranged in a supporting state and the supporting element is arranged in its supporting position and the bridging element is arranged in an interrupting position and the shielding element is arranged in a shielding position;

[0028] Figure 4 Show according to Figure 3 Schematic diagram of , in which the upper knife is lowered;

[0029] Figure 5 Show according to Figure 2 Schematic diagram of a device in which the switching device is arranged in a transfer state, the support element is arranged in its first disposal position, the bridging element is arranged in its transfer position, and the shielding element is arranged in an open position;

[0030] Figure 6 Show according to Figure 2 Schematic diagram of a, wherein the switching device is arranged in the disposal state and the support element is arranged in its second disposal position and the bridging element is arranged in the interruption position and the shielding element is arranged in the open position;

[0031] Figure 7 Show according to Figure 5 Schematic diagram of a method of manufacturing a paper sheet, wherein the upper knife is raised and the sheet stack is moved further forward;

[0032] Figure 8 Show according to Figure 5 Schematic diagram of a paper sheet stack, wherein the single sheet stack has been moved further forward;

[0033] Fig. 9A schematic diagram showing a second cutting mechanism is shown in side view. DETAILED DESCRIPTION

[0034] The stack cutting device 01 for cutting a stack of individual sheets 26 into stacks of printed sheets 27, in particular stacks of securities 27, preferably has at least one, in particular first cutting mechanism 13, which is also referred to as in particular first stack cutting mechanism 13. The first cutting mechanism 13 is preferably designed as a first cutting mechanism 13 for cutting at least one stack of individual sheets 26, in particular for cutting a stack of individual sheets 26 into stacks of printed sheets 27. In addition to the first cutting mechanism 13, the stack cutting device 01 preferably has at least one second cutting mechanism 14, which is also referred to as in particular second stack cutting mechanism 14. By arranging a plurality of cutting mechanisms 13; 14, unnecessary multiple pivoting of the respective stacks can be avoided and productivity can be increased.

[0035] The first cutting mechanism 13 preferably has at least one first cutter bar 16, on which a first knife 18, referred to as a first upper knife 18, is arranged. The first upper knife 18 preferably has a first upper cutting edge 21, which is preferably designed as a straight cutting edge 21. Here, the respective cutting edge 21; 22; 81 is preferably particularly a straight line, on which the two faces of the corresponding knife 18; 19; 77 meet and is designed for dividing or cutting the material. The first cutter bar 16 is preferably arranged to be movable along a first adjustment path, which is preferably a straight line and further preferably only a straight line, in particular along and / or against the first adjustment direction A1.

[0036] The stack cutting device 01 has at least one first front placement device 11, which has a first front stack placement surface 04. The first front stack placement surface corresponds in particular to the first cutting mechanism 13. The first front placement device 11 is also referred to as the first front workbench 11. The first workbench plane E contains the first front stack placement surface 04, preferably completely contains the first front stack placement surface 04, at least to the extent that the stack placement surface 04 is flat. This is different from an imaginary plane that only intersects the stack placement surface 04, that is, has only one common intersection line with it. The first workbench plane E is preferably at least temporarily, in particular at least during the cutting process, and further preferably permanently oriented in the horizontal direction. The first front stack placement surface 04 is in particular used to support the single-sheet stack 26 to be cut before and / or during the corresponding cutting process. The first stack cutting mechanism 13 has at least one movable first upper knife 18 and at least one fixed knife 77, which is designed as a first lower knife 77. The first lower knife 77 preferably has a cutting edge 81, which is referred to as a lower cutting edge 81. For example, at least a portion of the first lower knife 77 forms a portion and / or a forward extension of the first front stack placement surface 04. For example, the cutting edge 81 of the first lower knife 77 delimits the first front stack placement surface 04 and / or the cutting edge 81 of the first lower knife 77 is arranged before the cutting gap 76 in relation to the transport path provided for the sheet stack 26.

[0037] The stack cutting device 01 preferably has at least one first rear support device 68 with a first rear stack support surface 69. The first rear stack support surface 69 is used to carry at least one corresponding, separated intermediate stack 28 or printed sheet stack 27. Preferably, a cutting gap 76 is arranged between the first front stack support surface 04 and the first rear stack support surface 69. The cutting gap 76 extends along the transport path provided for the sheet stack 26, for example, by at least 2 cm, preferably at least 4 cm, more preferably at least 6 cm, and independently of this, for example, by at most 20 cm, more preferably by at most 10 cm and even more preferably by at most 8 cm. The cutting gap 76 is used in particular to be able to lower the first upper knife 18 below the first table plane E and / or to accommodate at least one supporting element 78 and / or at least one bridging element 83 and / or at least one shielding element 86 and / or at least one switching device 89 and / or to transport away the waste section 91. The first table plane E preferably at least partially and in particular completely encompasses the rear stack placement surface 69. The rear sheet stack 26 can then be laid flat for cutting.

[0038] The first stack cutting mechanism 13 has at least one movable supporting element 78, which has at least one contact surface 79, which is provided for supporting the sheet 71, in particular from below. The at least one supporting element 78 is arranged movably, in particular switchably and preferably pivotably between at least a supporting position and at least a first disposal position. The contact surface 79 is preferably designed at least partially as a flat contact surface 79. At least when the supporting element 78 is arranged in the supporting position, at least one contact surface 79 of the supporting element 78 is arranged in and / or below the first workbench plane E. In particular, when the supporting element 78 is arranged in the supporting position, preferably, no component of the contact surface 79 of the supporting element 78 is arranged above the workbench plane E. When the supporting element 78 is arranged in the supporting position, at least one contact surface 79 of the supporting element 78 is closer to the cutting edge 81, in particular fixed in position, of the lower knife 77a than when the supporting element 78 is arranged in the disposal position. Here, the smallest possible distance is the distance to be considered. Preferably, at least one contact surface 79 of the support element 78 is arranged at least partially and further preferably completely below the first table plane E when the support element 78 is arranged in the treatment position.

[0039] For example, at least one support element 78 is arranged pivotably about a switching axis 82, in particular to switch between different positions, such as an introduction position and / or a support position and / or a first treatment position and / or a second treatment position.

[0040] The feeding position of the support element 78 is used in particular to enable the edge region 92 of the sheet stack 26 to be cut to be positioned relative to the lower knife 77 and / or the upper knife 18 of the first cutting mechanism 13 in such a way that the edge cutting can then be carried out. During the edge cutting process, the support element 78 should be kept at a distance from the lower knife 77 so that the cutting edge 21 of the upper knife 19 can be moved at least one section, in particular lowered below the cutting edge 81 of the lower knife 77 and / or below the first table plane E. This results in a gap that realizes a part of the cutting gap 76. This gap extends along the transport path provided for the sheet stack 26, for example, by at least 2 mm, preferably at least 4 mm, and independently of this, for example, by at most 20 mm, more preferably by at most 10 mm, even more preferably by at least 10 mm and even more preferably by at most 8 mm. However, when positioning the sheet stack 26, this gap must be passed by the edge region 92 of the sheet stack. Here, there is a risk that at least the edge of the lowermost sheet 71 may slide into the gap and therefore cannot be supported by the supporting element 78. Therefore, the supporting element 78 is first positioned in the feed position, then the sheet stack 26 is positioned relative to the lower knife 77 and / or the upper knife 18 of the first cutting mechanism 13, and then the supporting element 78 is moved, in particular raised and / or pivoted into the supporting position. In this case, if necessary, a portion of the sheets 71 to be cut from the sheet stack 26 is lifted. Preferably, when the supporting element 78 is arranged in the feed position, at least one contact surface 79 of at least one supporting element 78 is arranged below the first table plane E and is arranged closer to the cutting edge 81 of the lower knife 77 than when the supporting element 78 is arranged in the handling position. Preferably, when the supporting element 78 is arranged in at least one supporting element 78, at least one contact surface 79 of at least one supporting element 78 is arranged closer to the cutting edge 81 of the lower knife 77 than when the supporting element 78 is arranged in the feed position. (The supporting element 78 is, for example, in Figure 2 It is shown in its inserted position.)

[0041] The supporting position of the supporting element 78 is used in particular to support at least the lowest sheet 71 in the sheet stack during the edge cutting process and thereby prevent such a sheet 71 from being incompletely cut. For this purpose, the contact surface 79 of the supporting element 78 arranged in the supporting position is preferably included in the first table plane E or is arranged only slightly offset from the first table plane E. (The supporting element 78 is, for example, Figure 3 is shown in its supporting position.)

[0042] The first disposal position of the support element 78 is particularly used for disposing of waste segments 91, in particular cut edge segments of the sheet stack 26, which are too small to be further processed. For this purpose, the support element 78 is preferably brought into the first disposal position, in which the contact surface 79 of the support element is essentially completely arranged outside the first workbench plane E. The contact surface 79 of the support element 78 is preferably arranged obliquely in the first disposal position. Therefore, these cut waste segments preferably slide off the support element 78. For example, this is sufficient for transportation. Otherwise, the support element 78 can be moved further, in particular into the second disposal position, for example to create more space or widen the narrow part. Therefore, the second disposal position of the support element 78 is particularly used to reliably transport away the cut waste segments of the sheet stack 26. (The support element 78 is, for example, in Figure 5 ) (The support element 78 is shown in its first handling position. Figure 6 is shown in its second disposed position.)

[0043] The switching axis 82 is preferably oriented horizontally. The switching axis 82 preferably extends in a transverse direction A. The transverse direction A is preferably the direction A in which the cutting edge 81 of the lower knife 77 extends parallel to it. The switching axis 82 is preferably located below the worktable plane E. For example, the switching axis 82 is located in the cutting gap 76 and / or along the conveying path provided for the sheet stack 26 behind the first front stacking placement surface 04, in particular between the first front stacking placement surface 04 and the first rear stacking placement surface 69, and further preferably closer to the first rear stacking placement surface 69 than the first front stacking placement surface 04. Preferably, at least one pivot drive is arranged to pivot at least one support element 78. The at least one rotary drive is designed, for example, as an electric motor and / or a linear motor and / or a pneumatic drive and / or a hydraulic drive. In a preferred embodiment, the at least one rotary drive is designed as a pair of pneumatic cylinders arranged in series. Thus, the first pneumatic cylinder is fixed with its parts that can be moved relative to each other on the one hand to the part of the cutting device that is fixed relative to the frame, and on the other hand to the second pneumatic cylinder. Here, the second pneumatic cylinder is fixed with its parts that can be moved relative to each other on the one hand to the first pneumatic cylinder and on the other hand to a pivotable component, which is the support element 78 or is rigidly connected to the support element 78. By correspondingly controlling the two end positions of the two pneumatic cylinders, four positions of the support element can be achieved, in particular the feed position, the support position, the first handling position and the second handling position.

[0044] In an alternative or additional improvement, the stack cutting device 01 preferably has the advantage that the first cutting mechanism 13 has at least one bridging element 83, which is movable, in particular switchable and, for example, pivotable between at least one transfer position and at least one interruption position. The bridging element 83 preferably has at least one support surface 84. When the bridging element 83 is arranged in the transfer position, the support surface 84 of the bridging element is preferably completely located in the first workbench plane E, and / or the support surface 84 of the bridging element has a vertical normal vector N84. When the bridging element 83 is arranged in the interruption position, the support surface 84 of the bridging element is at least 50%, preferably at least 75%, further preferably at least 95% and further preferably at least 99% located outside the first workbench plane E, or the support surface 84 of the bridging element has a normal vector N84 that deviates from the vertical direction V. For example, at least one bridging element 83 is pivotably arranged around the pivot axis 82, in particular switchable between different positions. These positions are, for example, the transfer position and at least one interruption position. The pivot axis 82 is preferably a switching axis 82. The transfer position of the bridging element 83 is used in particular to reliably guide the front end of the sheet stack 26 to the second stacking surface 69, from which the part provided as the intermediate stack 28 or the printed sheet stack 27 for further processing is to be cut. For this purpose, the surface normal N84 of the support surface 84 of the bridging element 83 in its transfer position is preferably oriented vertically and / or the support surface 84 of the bridging element 83 in its transfer position is preferably contained in the first workbench plane E. At least one interruption position of the bridging element 83 is used in particular to enable the position of the supporting element 78 to be adapted and / or to provide space for the movement or relocation of the supporting element 78. For example, the bridging element 83 can be arranged in several different interruption positions. Preferably, the cutting gap 76 can be at least partially covered by the bridging element 83. Preferably, the cutting gap 76 can be at least partially covered by the supporting element 78. Preferably, the cutting gap 76 can only be covered by the bridging element 83 or the supporting element 78 or only one of the two at any one time.

[0045] In an alternative or additional improvement, the stack cutting device 01 is preferably characterized in that the at least one supporting element 78 and the at least one bridging element 83 are rigidly connected to each other. The at least one supporting element 78 and the at least one bridging element 83 are preferably arranged pivotably together about the switching axis 82. Preferably, the surface normal N79 of the contact surface 79 of the supporting element 78 and the surface normal N84 of the supporting surface 84 of the bridging element 83 enclose an angle W. The angle W is preferably at least 30°, more preferably at least 45°, more preferably at least 60°, more preferably at least 80°. The angle W is preferably at most 150°, more preferably at most 135°, more preferably at most 120°, and more preferably at most 100°.

[0046] In an alternative or additional improvement, the stack cutting device 01 is preferably characterized in that the first cutting mechanism 13 has at least one shielding element 86, which is movable, in particular switchable, for example pivotable, between at least one shielding position and at least one open position. When the shielding element 86 is arranged in its shielding position, the shielding element 86 is preferably arranged at least partially above the first table plane E. When the shielding element 86 is arranged in its open position, the shielding element 86 is preferably arranged completely below the first table plane E. The shielding position of the shielding element 86 is used in particular to prevent individual components of the waste section 91, in particular the cut edge region 92 of the cut sheet stack 26, from being thrown onto the second stack placement surface 69 during cutting. Preferably, the at least one shielding element 86 is arranged rigidly relative to the at least one supporting element 78 and / or rigidly relative to the at least one bridging element 83. Preferably, the at least one shielding element 86 is also arranged pivotably about the switching axis 82. The open position of the shielding element 86 is used in particular to enable the sheet stack 26 to be pushed forward onto the second stack placement surface 69. For example, at least one shielding element 86 has at least one ramp surface 88 and / or at least one shielding element 86 in at least one open position serves as a ramp element 86, in particular to facilitate the pushing of the corresponding sheet stack 26 forward across the cutting gap 76. The special open position of the shielding element 86 is then referred to as a ramp position, for example. The ramp position of the shielding element 86 as a special open position of the shielding element 86 is used in particular to enable the front end of the sheet stack 26, which may be suspended, to be brought back to the height of the first workbench plane E when it advances toward the second stack placement surface 69.

[0047] The at least one supporting element 78 is arranged at least in its supporting position and preferably always between the first front stack placement surface 04 and the first rear stack placement surface 69 , in particular along a transport path provided for the sheet stacks 26 .

[0048] In an alternative or additional development, the stack cutting device 01 is preferably characterized in that at least one switching device 89 is arranged, which comprises at least one supporting element 78 and at least one bridging element 83. Further preferably, the at least one switching device 89 also comprises at least one shielding element 86. The at least one switching device 89 has, for example, a base body 91, to which at least one supporting element 78 and at least one bridging element 83 and further preferably also at least one shielding element 86 are rigidly arranged and / or to which at least one supporting element 78 and at least one bridging element 83 and further preferably also at least one shielding element 86 are fixed. Preferably, the at least one switching device 89 and in particular its base body 91 are arranged pivotably about the switching axis 82.

[0049] For example, the switching device 89 can be switched between at least four or exactly four states. Such a first state is the feeding state. When the switching device 89 is arranged in the feeding state, the support element 78 is preferably arranged in its feeding position. When the switching device 89 is arranged in the feeding state, the bridging element 83 is preferably arranged in the interruption position. When the switching device 89 is arranged in the feeding state, the shielding element 86 is preferably arranged in the shielding position. (For example, the switching device is arranged in the feeding state in Figure 2 ) Such a second state is a supporting state. When the switching device 89 is arranged in the supporting state, the supporting element 78 is preferably arranged in its supporting position. When the switching device 89 is arranged in the supporting state, the bridging element 83 is preferably arranged in the interrupting position. When the switching device 89 is arranged in the supporting state, the shielding element 86 is preferably arranged in the shielding position. (For example, the switching device is arranged in the supporting state Figure 3 and 4 ) Such a third state is the transfer state. When the switching device 89 is arranged in the transfer state, the support element 78 is preferably arranged in its, in particular, first handling position. When the switching device 89 is arranged in the transfer state, the bridging element 83 is preferably arranged in its transfer position. When the switching device 89 is arranged in the feeding state, the shielding element 86 is preferably arranged in an open position, in particular in a ramp position. (For example, the switching device is arranged in the transfer state in Figure 5 , Figure 7 and Figure 8 ) Such a fourth state is the treatment state. When the switching device 89 is arranged in the treatment state, the support element 78 is preferably arranged in its, in particular, second treatment position. When the switching device 89 is arranged in the treatment state, the bridging element 83 is preferably arranged in the interruption position. When the switching device 89 is arranged in the treatment state, the shielding element 86 is preferably arranged in the open position. (For example, the switching device is arranged in the treatment state Figure 6 .

[0050] In an alternative or preferred improvement, the stack cutting device 01 is preferably characterized in that a guide surface 87 for influencing the falling path of the separated stack components or waste pieces 91 is arranged below the upper knife 18. Thus, after the stack components or waste pieces slide off the contact surface 79 of the deposit device 78 due to gravity, they can be guided to a disposal device, such as a waste section container or a conveyor device.

[0051] In an alternative or additional development, the stack cutting device 01 is preferably characterized in that the first stack cutting mechanism 13 has at least one lowerable cutting aid 23 for pressing a part of the respective sheet stack 26 against the first front stacking placement surface 04 and / or the first stack cutting mechanism 13 has at least one lowerable pressure element 52 for pressing the respective sheet stack 26, in particular the part to be separated, against the first rear stacking placement surface 69. In particular, the first cutting mechanism 13 is preferably characterized in that the first cutting mechanism 13 has at least one first cutting aid 23, in particular a first pressure rod 23, for fixing the sheet stack 26 and / or the intermediate stack 28 and / or the printed sheet stack 27, the first cutting aid being arranged so as to be movable at least with respect to the vertical direction V and being arranged before the first upper knife 18 along a transport path provided for transporting the sheet stack 26 and / or the intermediate stack 28 and / or the printed sheet stack 27. Preferably, a force of 0.5 N / mm is applied by means of the first cutting aid 23. 2 (half Newton per square millimeter) and 2N / mm 2 (2 Newtons per square millimeter). This ensures that no layers move relative to one another during cutting and that all layers are cut cleanly. For example, at least one first pressing element 52 is arranged along the provided conveying path behind the first upper knife 18, which first pressing element is used in particular to prevent the cut components from jumping off in an uncontrolled manner.

[0052] In an alternative or additional improvement, the first cutting mechanism 13 preferably has the advantage that the first cutting mechanism 13 has at least one first cutting drive M1 for moving the first cutter bar 16 along and / or against the first adjustment direction A1. The at least one first cutting drive M1 is designed, for example, as an electric motor M1 and / or a linear motor M1 and / or a pneumatic drive M1 and / or a hydraulic drive M1.

[0053] The second cutting mechanism 14, which is preferably arranged, preferably has at least one second cutter bar 17, on which a second knife 19, referred to as second upper knife 19, is arranged. The second upper knife 19 has in particular a second upper cutting edge 22, which is preferably designed as a straight cutting edge 22. The second cutter bar 17 is preferably arranged movably along a second, preferably straight and further preferably exclusively straight, adjustment conveying path along and / or against a second adjustment direction A2.

[0054] In an alternative or additional improvement, the second cutting mechanism 14 is preferably characterized in that the second cutting mechanism 14 has at least one second cutting aid 24, in particular a second pressure rod 24, for fixing the sheet stack 26 and / or the intermediate stack 28 and / or the printed sheet stack 27, the second cutting aid being arranged movably at least about the vertical direction V, and the second cutting aid being arranged before the second upper knife 19 along the transport path provided for transporting the sheet stack 26 and / or the intermediate stack 28 and / or the printed sheet stack 27. Preferably, a force of 0.5 N / mm is applied by means of the second cutting aid 24. 2 (half Newton per square millimeter) and 2N / mm 2 (two Newtons per square millimeter). This ensures that during cutting, no layers move relative to one another and that all layers are cut cleanly. For example, at least one second pressing element 67 is arranged along the provided conveying path behind the second upper knife 19, which second pressing element serves in particular to prevent the cut components from jumping off in an uncontrolled manner.

[0055] In an alternative or additional improvement, the second cutting mechanism 14 preferably has the advantage that the second cutting mechanism 14 has at least one second cutting drive M2 for moving the second knife bar 17 along and / or against the second adjustment direction A2, and the at least one second cutting drive M2 is designed as an electric motor M2 and / or a linear motor M2 and / or a pneumatic drive M2 and / or a hydraulic drive M2.

[0056] In an alternative or additional improvement, the stack cutting device 01 is preferably characterized in that the stack cutting device 01 has at least one first stack positioning device 02, in particular for positioning at least one corresponding sheet stack 26. The pivot axis corresponding to the first stack positioning device 02 is preferably oriented parallel to the vertical direction V. In an alternative or additional improvement, the stack cutting device 01 and / or the corresponding cutting mechanism 13; 14 is preferably characterized in that the stack cutting device and / or the corresponding cutting mechanism has at least one sheet feed area 43 and at least one sheet discharge area 44 or a securities discharge area 44. The stack cutting device 01 is particularly used to produce a plurality of sheet stacks 27, in particular securities stacks 27, from at least one corresponding sheet stack 26.

[0057] For example, at least one first stack positioning device 02 is preferably arranged directly in the sheet feed area 43 or subsequently along the provided transport path. For example, the first cutting mechanism 13 is arranged after the first stack positioning device 02. The first paper stack positioning device 02 is preferably assigned to the first cutting mechanism 13, in particular to be able to optimally align the corresponding sheet stacks 26.

[0058] In another or additional improvement, the stack cutting device 01 is preferably characterized in that at least one supporting element 78 is made of an elastic material (e.g. rubber). The supporting element 78 can then be arranged in its supporting position as close as possible to the lower knife 77 and, when in contact with the upper knife 18, is squeezed by the upper knife without being damaged. This reduces the problematic area of ​​the cutting gap 76 as effectively as possible.

[0059] Reference numerals list

[0060] 01Stacking and cutting device

[0061] 02Stacking positioning device, first

[0062] 03-

[0063] 04 Stacking surface, first (of 11)

[0064] 11 Shelves, workbenches, first

[0065] 12-

[0066] 13 cutting mechanism, stacking cutting mechanism, first

[0067] 14 cutting mechanism, stacking cutting mechanism, second

[0068] 15-

[0069] 16 Tool bar

[0070] 17 knife bar, second

[0071] 18 knife, upper knife, first

[0072] 19 knife, upper knife, second

[0073] 20-

[0074] 21 cutting edge, upper, first

[0075] 22 cutting edge, upper, second

[0076] 23 Cutting aids, pressure rod, first

[0077] 24 Cutting auxiliary parts, pressure rod, second

[0078] 25-

[0079] 26 single sheet stacking

[0080] 27 Printed sheets and securities

[0081] 28 Middle stacking

[0082] 43 Sheet feeding area

[0083] 44 Printed sheet discharge area, securities discharge area

[0084] 52 Pressing piece, first

[0085] 67 Pressing piece, second

[0086] 68 Shelving device, second

[0087] 69 Stacking Shelf, Second (of 68)

[0088] 71 single sheets

[0089] 76 Cutting Gap

[0090] 77 knife, lower knife

[0091] 78 Support elements

[0092] 79 contact surface (belongs to 78)

[0093] 80-

[0094] 81 Cutting edge, lower (of 77)

[0095] 82 pivot axis, switching axis

[0096] 83 bridge element

[0097] 84 Support surface (belongs to 83) 85

[0099] 86 shielding elements, slope elements

[0100] 87 Guide surface

[0101] 88 Slope Area (belongs to 86)

[0102] 89 Switching device 90

[0104] 91 Waste Segment

[0105] 92 marginal areas (of 71)

[0106] A direction, horizontal

[0107] A1 adjusts the direction, first

[0108] A2 adjusts the direction, the second

[0109] E workbench plane, first

[0110] N79 Normal vector (belongs to 79)

[0111] M1 cutting drive, electric motor, linear motor, pneumatic, hydraulic, first

[0112] M2 cutting drive, electric motor, linear motor, pneumatic, hydraulic, second

[0113] N84 normal vector (belongs to 84)

[0114] VVertical direction

[0115] W angle

Claims

1. A stacking and cutting device (01), wherein: The stack cutting device (01) has at least one first cutting mechanism (13) for cutting at least one single-sheet stack (26), and the stack cutting device (01) has at least one first front placing device (11), the first front placing device has a first front stack placing surface (04), and the stack cutting device (01) has at least one first rear placing device (68), the first rear placing device (68) has a first rear stack placing surface (69), and the first rear stack placing surface (69) is used to carry at least one corresponding separated The invention relates to a method of cutting a sheet stack (26) for cutting paper from a first sheet of paper and a first workbench plane (E) for cutting paper sheets. The method comprises: firstly, a cutting mechanism (13) for cutting paper sheets from a first sheet of paper and a first cutting aid (23) for fixing the sheet stack (26). The method comprises: firstly, a cutting mechanism (13) for cutting paper sheets from a first sheet of paper and a first cutting aid (23) for fixing the sheet stack (26). The first cutting aid is arranged to be movable at least with respect to the vertical direction (V), and the first cutting aid is arranged in front of the first upper knife (18) along a conveying path provided for conveying a single paper stack (26) and / or an intermediate stack (28) and / or a printed sheet stack (27), characterized in that the first cutting mechanism (13) has at least one movable supporting element (78), the supporting element has at least one contact surface (79) provided for supporting a single paper (71), and the supporting element is arranged to be movable at least between a supporting position and a handling position, The at least one supporting element (78) is arranged between the first front stacking placement surface (04) and the first rear stacking placement surface (69) at least in its supporting position, and when the supporting element (78) is arranged in the supporting position, at least one contact surface (79) of the supporting element (78) is arranged in and / or below the first workbench plane (E), and when the supporting element (78) is arranged in the supporting position, at least one contact surface (79) of the supporting element (78) is arranged closer to the cutting edge (81) of the lower knife (77) than when the supporting element (78) is arranged in the handling position.

2. The stacking cutting device according to claim 1, characterized in that: The support element (78) is arranged so as to be pivotable about a switching axis (82).

3. The stacking cutting device according to claim 1 or 2, characterized in that: The first cutting mechanism (13) has at least one bridging element (83), which is capable of moving between at least one transfer position and at least one interruption position, and the bridging element (83) has at least one supporting surface (84), and when the bridging element (83) is arranged in the transfer position, the supporting surface (84) of the bridging element has a vertical normal vector (N84), and when the bridging element (83) is arranged in the interruption position, the supporting surface (84) of the bridging element is at least 50% outside the first workbench plane (E) and has a normal vector (N84) deviating from the vertical direction.

4. The stacking cutting device according to claim 3, characterized in that: When the bridge element (83) is arranged in the interruption position, the support surface (84) of the bridge element is located at least 75% outside the first table plane (E).

5. The stack cutting device according to claim 4, characterized in that: When the bridge element (83) is arranged in the interruption position, the support surface (84) of the bridge element is located at least 95% outside the first table plane (E).

6. The stack cutting device according to claim 5, characterized in that: When the bridge element (83) is arranged in the interruption position, the support surface (84) of the bridge element is located at least 99% outside the first table plane (E).

7. The stack cutting device according to claim 3, characterized in that: When the bridge element (83) is arranged in the transfer position, the support surface (84) of the bridge element is located in the first table plane (E).

8. The stack cutting device according to claim 3, characterized in that: The at least one bridging element (83) is arranged so as to be pivotable about a pivot axis designed as a switching axis (82).

9. The stack cutting device according to claim 3, characterized in that: The at least one supporting element (78) and the at least one bridging element (83) are rigidly connected to one another.

10. The stack cutting device according to claim 3, characterized in that: A surface normal (N79) of the contact surface (79) of the support element (78) and a normal vector (N84) of the support surface (84) of the bridge element (83) enclose an angle (W) of at least 30° and at most 150°.

11. The stack cutting device according to claim 10, characterized in that: The angle is at least 45°.

12. The stack cutting device according to claim 11, characterized in that: The angle is at least 60°.

13. The stack cutting device according to claim 12, characterized in that: The angle is at least 80°.

14. The stack cutting device according to claim 10, characterized in that: The angle is at most 135°.

15. The stack cutting device according to claim 14, characterized in that: The angle is at most 120°.

16. The stack cutting device according to claim 15, characterized in that: The angle is at most 100°.

17. The stack cutting device according to claim 1 or 2, characterized in that: The first cutting mechanism (13) has at least one shielding element (86), which is capable of moving between at least one shielding position and at least one open position, and when the shielding element (86) is arranged in its shielding position, the shielding element (86) is at least partially arranged above the first workbench plane (E), and when the shielding element (86) is arranged in its open position, the shielding element (86) is completely arranged below the first workbench plane (E).

18. The stack cutting device according to claim 1 or 2, characterized in that: When the support element (78) is arranged in the handling position, at least one contact surface (79) of the support element (78) is at least partially arranged below the first workbench plane (E) of the support element (78), or when the support element (78) is arranged in the handling position, at least one contact surface (79) of the support element (78) is completely arranged below the first workbench plane (E).

19. The stack cutting device according to claim 1 or 2, characterized in that: A guide surface (87) is arranged below the first upper knife (18) for influencing the falling path of the separated stack components.

20. The stack cutting device according to claim 1 or 2, characterized in that: The first cutting aid (23) is designed as a first cutting aid (23) that can be lowered to press a portion of the corresponding sheet stack (26) toward the first front stack placement surface (04).

21. The stack cutting device according to claim 1 or 2, characterized in that: The first cutting mechanism (13) has at least one lowerable pressing member (52) for pressing a portion of the corresponding sheet stack (26) toward the first rear stack placement surface (69).

22. The stack cutting device according to claim 1 or 2, characterized in that: The stack cutting device (01) has at least one second cutting mechanism (14) in addition to the first cutting mechanism (13).

23. The stack cutting device according to claim 1 or 2, characterized in that: The support element (78) is arranged in a pivotable manner about a switching axis (82), and the switching axis (82) is located below the first workbench plane (E).

24. The stack cutting device according to claim 23, characterized in that: The switching shaft (82) is located in the cutting gap (76).

25. The stack cutting device according to claim 23, characterized in that: The switching axis (82) is located behind the first front stacking placement surface (04) along the transport path provided for the sheet stack (26).

26. The stack cutting device according to claim 23, characterized in that: The switching axis (82) is arranged between a first front stacking placement surface (04) and a first rear stacking placement surface (69) along a transport path provided for a sheet stack (26), and is closer to the first rear stacking placement surface (69) than to the first front stacking placement surface (04).

27. The stack cutting device according to claim 1 or 2, characterized in that: The at least one support element (78) is constructed from an elastic material.

28. The stack cutting device according to claim 1 or 2, characterized in that: The at least one supporting element (78) is constructed from rubber.

29. The stack cutting device according to claim 1 or 2, characterized in that: The first cutting mechanism (13) has at least one lowerable pressing element (52) for pressing the part of the corresponding sheet stack (26) to be separated toward the first rear stack placement surface (69).

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