Stack cutting device with support member

Abstract

The present invention relates to a stack cutting device (01), comprising a cutting device (13) for cutting a sheet stack (26), an upstream stacking device (11) with an upstream stack placement surface (04), a downstream stack placement device (68) with a downstream stack placement surface (69), and a cutting gap (76) arranged between the upstream stack placement surface (04) and the downstream stack placement surface (69), the upstream stack placement surface (04) being included in a table plane (E), the cutting device (13) having a movable upper cutter (18), a lower cutter (77) with a cutting edge (81) and cutting auxiliary means (23) for fixing the position of the sheet stack (26), the cutting auxiliary means (23) being vertically movable. , is disposed in front of the upper cutter (18) along a conveying path provided for conveying the sheet stack (26), and the cutting device (13) has a movable support member (78) having a contact surface (79) provided for supporting the sheet (71) and is disposed movably between a support position and a removal position, the contact surface (79) being disposed inside and / or below the table plane (E) when the support member (78) is disposed in the support position, and the contact surface (79) being disposed closer to the blade edge (81) when the support member (78) is disposed in the support position than when the support member (78) is disposed in the removal position.

Description

[Technical field]

[0001] The present invention relates to a stack cutting device having a support member.

[0002] Stack cutting devices are known that have a lowerable upper cutter and a fixed lower cutter, with which label stacks are cut from a sheet stack. In this case, the cutting edge of the upper cutter must be lowered below the cutting edge of the lower cutter by at least a certain distance in order to be able to carry out the cutting process completely. In particular, when edge cutting is carried out, the part of the bottommost sheet that overhangs the lower cutter can be bent downwards. If the cutting edge of the upper cutter is guided past the cutting edge of the lower cutter, the bottommost sheet can then be folded over the cutting edge of the lower cutter, especially in the case of thin sheets. As a result, the bottommost sheet can not be cut cleanly, but for example only one layer of the bottommost sheet can be cut off. In this case, the part that should have been cut remains on the bottommost sheet, which causes problems in the further processing.

[0003] A stack cutting device with a cutting device known from EP 1 018 408 A1 has a guide which can be pivoted about an axis, so that when the label stack is raised up after the cutting process, the cut label stack can be held in shape by the guide at the sides.

[0004] The stack cutting device known from DE 10 2009 053 975 A1 has a movable protection element which, on the one hand, is intended to prevent the cut paper web from reaching the upstream table, and which, on the other hand, can be used to push the partial stack towards the upstream table after cutting.

[0005] In a stack cutting device known from GDR Patent No. 62300, the sheet stack is transported across a cutting gap and cut by an upper cutter arranged behind the cutting gap and cooperating with a cutting strip, a pivotable bridge element being arranged in the cutting gap.

[0006] From DE 38 29 682 A1 a device for cutting stacks of books is known, which has a cutting strip which cooperates with an upper cutter arranged behind a cutting gap, in which a pivotable bridge element is arranged.

[0007] The stack cutting device known from FR 1 150 136 A1 has an upper cutter which cooperates with a cutting strip, in the area downstream of the cutter the stack rest surface can be folded downwards, thus creating a gap through which the waste strip can be discarded.

[0008] US Patent Nos. 3,913,750 and 3,146,650 each disclose a device for cutting books, which has an upper cutter and a lower cutter with cutting edges, which are arranged in the conveying direction downstream of a gap, which can be covered by a pivotable bridge element.

[0009] From DE 33 02 946 A1 and DE 35 13 418 A1, devices for cutting books are known which have an upper cutter which cooperates with a cutting strip. The cutter is arranged at the rear end of a cutting gap. A bridge element is arranged which transports the book across the cutting gap.

[0010] From WO 91 / 00168 and US 2007 / 0227323 A1 devices for cutting sheet stacks are known, which each have an upper cutter cooperating with a cutting strip. According to WO 91 / 00168, the cut articles are removed by a linearly movable table. In US 2007 / 0227323, a bridge member is provided which must be open during cutting in order to remove the cut articles. EP 1 129 972 A1 discloses a device for trimming the edges of books. .

[0011] SUMMARY OF THE DISCLOSURE The object of the present invention is to provide a stack cutting device with a support member.

[0012] This problem is solved according to the invention by the features of claim 1.

[0013] The stack cutting device has at least one, in particular a first cutting device for cutting at least one sheet stack, in particular a cutting device for cutting the sheet stack into a label stack. The stack cutting device has at least one first upstream placement device with a first upstream stack placement surface. The at least temporarily horizontal first table plane at least partially, preferably completely, includes this first upstream stack placement surface. In particular, the first stack cutting device has at least one first downstream placement device, preferably with a first downstream stack placement surface. A cutting gap is preferably arranged between the first upstream stack placement surface and the first downstream stack placement surface. In particular, the first stack cutting device has at least one movable upper cutter and at least one, in particular fixed, lower cutter. The lower cutter preferably has a cutting edge. The first cutting device preferably has at least one first cutting aid for fixing the sheet stack, which is arranged movable at least in the vertical direction and is arranged upstream of the first upper cutter along the transport path provided for transporting the sheet stack and / or the intermediate stack and / or the label stack.

[0014] In particular, the first stack cutting device has at least one movable support member, which has at least one contact surface, in particular for supporting the sheet from below, and which is arranged at least movably, for example switchably, in particular pivotably, between a support position and at least one first removal position. When the support member is arranged in the support position, the at least one contact surface of the support member is arranged inside and / or below the first table plane. When the support member is arranged in the support position, the at least one contact surface of the support member is arranged closer, in particular closer to the fixed and / or lower cutting edge of the lower cutter, than when the support member is arranged in the removal position. This has the advantage that even a very short edge of the bottom sheet of the stack can be supported from below, which prevents this edge from being folded over when the upper cutter descends and only partially sheared off instead of being neatly cut off. Furthermore, it can be ensured that the sheet edge does not inadvertently get into the gap required to create space for the upper cutter during feeding. Preferably, at least one contact surface of the support member is at least partially, more preferably completely, located below the first table plane when the support member is located in the removal position.

[0015] In one refinement, the stack cutting device is distinguished in that the support element is arranged pivotably about a switching axis, which has the advantage that relatively simple movements are performed and only a small installation space is required.

[0016] In an alternative or additional refinement, the stack cutting device is preferably characterized in that the first cutting device has at least one bridge member, in particular different from the support member, which is movable between at least one transfer position and at least one interruption position. The bridge member preferably has at least one support surface. When the bridge member is arranged in the transfer position, its support surface is preferably completely located in the first table plane and / or has a normal vector in the vertical direction. When the bridge member is arranged in the interruption position, its support surface is preferably at least 50%, more preferably at least 75%, even more preferably at least 95%, even more preferably at least 99% outside the first table plane and / or has a normal vector different from the vertical direction. This has the advantage that the cut sheet stack parts to be subsequently processed can also be transferred to the next rest surface in an orderly manner, while the advantages of the support member still remain.

[0017] In an alternative or additional refinement, the stack cutting device is preferably characterized in that at least one bridge element is arranged so as to be pivotable about a pivot axis. This has the advantage that relatively simple movements are performed and only a small installation space is required. In an alternative or additional refinement, the stack cutting device is preferably characterized in that at least one support element and at least one bridge element are rigidly connected to one another and / or are both pivotable 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 refinement, the stack cutting device is preferably characterized in that the first cutting device has at least one shielding member, which is movable between at least one shielding position and at least one release position. Preferably, when the shielding member is arranged in its shielding position, the shielding member is arranged at least partially above the first table plane. Preferably, when the shielding member is arranged in its release position, the shielding member is arranged completely below the first table plane. This provides the advantage that waste pieces are only present in the area provided for waste pieces. Preferably, the at least one shielding member is arranged immovably relative to the at least one support member and / or immovably relative to the at least one bridge member. In this case too, one common drive can be used.

[0019] In an alternative or additional refinement, the stack cutting device is preferably characterized in that the surface normal of the contact surface of the support member and the surface normal of the support surface of the bridge member form an angle of at least 30°, more preferably at least 45°, even more preferably at least 60°, even more preferably at least 80°, and the angle is at most 150°, even more preferably at most 135°, even more preferably at most 120°, even more preferably at most 100°. This provides the advantage that depending on the pivot position, the support member or the contact member is used, without the other blocking the path.

[0020] Small At least one support member is at least at its support position. , good Preferably, the stacking member is always arranged along the transport path provided for the sheet stack, in particular between the first upstream stacking surface and the first downstream stacking surface. 。 This requires little construction space.

[0021] In an alternative or additional refinement, the stack cutting device is preferably characterized in that the first stack cutting device has at least one lowerable cutting aid, which presses a part of each sheet stack against the first upstream stack rest surface and / or the first stack cutting device has at least one lowerable holder, which presses in particular the part of each sheet stack to be cut against the first downstream stack rest surface, which allows a particularly accurate cutting.

[0022] In an alternative or additional refinement, the stack cutting device is preferably characterized in that a guide surface is arranged under the upper cutter, which influences the fall path of the cut stack parts, so that the waste pieces can be transported particularly simply along a path provided for them, for example into a waste container.

[0023] One embodiment of the invention is illustrated and described in more detail below. [Brief description of the drawings]

[0024] [Figure 1] FIG. 2 is a plan view illustrating a stack cutting device. [Diagram 2] A schematic side view of a first cutting device, in which the switching device is arranged in an approach state, the support member is arranged in an approach position, the bridge member is arranged in an interrupted position, the shielding member is arranged in a shielding position, and the edge area of ​​the sheet stack extends beyond the lower cutter. [Diagram 3] Schematic diagram shown in FIG. 2, in which the switching device is arranged in a supported state, the support member is arranged in its supporting position, the bridge member is arranged in the interrupted position and the shielding member is arranged in the shielding position. [Figure 4] Schematic diagram shown in FIG. 3, where the upper cutter has now been lowered. [Diagram 5]3 is a schematic diagram shown in FIG. 2, in which the switching device is arranged in a transport state, the support member is arranged in its first removal position, the bridge member is arranged in its transport position, and the shielding member is arranged in the release position. [Figure 6] 3 is a schematic diagram shown in FIG. 2, in which the switching device is arranged in a removed state, the support member is arranged in its second removed position, the bridge member is arranged in an interrupted position, and the shielding member is arranged in a released position. [Figure 7] 6 is a schematic diagram as shown in FIG. 5, where the upper cutter has been raised and the sheet stack has been pushed further forward. [Figure 8] 6 is a schematic diagram as shown in FIG. 5, where the sheet stack has now been pushed further forward. [Figure 9] FIG. 4 is a side view illustrating a second cutting device.

[0025] The stack cutting device 01, which cuts the sheet stack 26 into label stacks 27, in particular into stacks of securities 27, preferably has at least one, in particular a first cutting device 13, which is also called in particular a first stack cutting device 13. The first cutting device 13 is preferably configured as a first cutting device 13, which cuts at least one sheet stack 26, in particular cutting the sheet stack 26 into label stacks 27. In addition to the first cutting device 13, the stack cutting device 01 preferably has at least one second cutting device 14, which is also called in particular a second stack cutting device 14. By arranging several cutting devices 13; 14, unnecessary multiple rotations of the corresponding stacks can be avoided and the throughput can be increased.

[0026] The first cutting device 13 preferably has at least one first cutter bar 16, on which a first cutter 18, called first upper cutter 18, is arranged. The first upper cutter 18 preferably has a first upper cutting edge 21, which is preferably formed as a straight cutting edge 21. In this case, the cutting edges 21; 22; 81 are preferably in particular straight along which the two faces of the corresponding cutter 18; 19; 77 come into contact with each other, the cutter 18; 19; 77 being formed to cut or sever the material. The first cutter bar 16 is preferably arranged to be movable along a first working path, preferably straight, more preferably exclusively straight, in particular in the first working direction A1 and / or in a direction opposite to the first working direction A1.

[0027] The stack cutting device 01 has at least one first upstream support device 11 with a first upstream stack placement surface 04. This first upstream support device 11 is arranged in particular corresponding to the first cutting device 13. The first upstream support device 11 is also called the first upstream table 11. The first table plane E preferably completely includes this first upstream stack placement surface 04, at least insofar as this stack placement surface 04 is of flat design. This must be distinguished from an imaginary plane which only intersects the stack placement surface 04, i.e. shares only one intersection line with the stack placement surface 04. The first table plane E is preferably at least temporarily, in particular at least during the cutting process, more preferably permanently, oriented in a horizontal direction. The first upstream stack placement surface 04 is used to support the sheet stack 26 to be cut, in particular before and / or during each cutting process. The first stack cutting device 13 has at least one movable first upper cutter 18 and at least one cutter 77, in particular configured as a first lower cutter 77, which has a cutting edge 81, preferably called a lower cutting edge 81. For example, at least a portion of the first lower cutter 77 forms a part and / or an extension of the first upstream stack placement surface 04. For example, the cutting edge 81 of the first lower cutter 77 forms the boundary of the first upstream stack placement surface 04 and / or the cutting edge 81 of the first lower cutter 77 is arranged upstream of the cutting gap 76 with respect to the transport path provided for the sheet stack 26.

[0028] The stack cutting device 01 preferably has at least one first downstream stack placement device 68 with a first downstream stack placement surface 69. The first downstream stack placement surface 69 is , small1, the first upper cutter 18 is used to support at least one cut intermediate stack 28 or label stack 27, respectively. Preferably, a cutting gap 76 is arranged between the first upstream stack placement surface 04 and the first downstream stack placement surface 69. This cutting gap 76 extends along the transport path provided for the sheet stack 26 for example over at least 2 cm, preferably at least 4 cm, more preferably at least 6 cm, and independently of this over a maximum of 20 cm, more preferably at most 10 cm, even more preferably at most 8 cm. This cutting gap 76 is used in particular to allow the first upper cutter 18 to penetrate below the first table plane E and / or to accommodate at least one support member 78 and / or at least one bridge member 83 and / or at least one shielding member 86 and / or at least one switching device 89 for this purpose and / or to remove the waste pieces 91. Preferably, the first table plane E at least partially, in particular completely, includes this downstream stack rest surface 69. In this case, the sheet stack 26 for cutting can lie flat.

[0029] The first stack cutting device 13 has at least one movable support member 78, which has at least one contact surface 79 for supporting the sheet 71, in particular from below. The at least one support member 78 is arranged at least movably, in particular switchably and preferably pivotably, between a support position and at least one first removal position. The contact surface 79 is preferably formed as an at least partially flat contact surface 79. The at least one contact surface 79 of the support member 78 is arranged at least in the interior and / or below the first table plane E when the support member 78 is arranged in the support position. In particular when the support member 78 is arranged in the support position, preferably no component of the contact surface 79 of the support member 78 is arranged above the table plane E. The at least one contact surface 79 of the support member 78 is arranged in the support position closer to the cutting edge 81, in particular the fixed cutting edge 81, of the lower cutter 77 than when the support member 78 is arranged in the removal position. In this case, the minimum distance is taken into account in each case. Preferably, at least one contact surface 79 of the support member 78 is at least partially, and more preferably completely, arranged below the first table plane E when the support member 78 is arranged in the removal position.

[0030] For example, the at least one support member 78 is arranged to be pivotable about a switching axis 82, in particular to be able to be switched between a plurality of different positions, such as an entry position and / or a support position and / or a first removal position and / or a second removal position.

[0031] The entry position of the support element 78 is used in particular to enable the edge area 92 of the sheet stack 26 to be positioned relative to the lower cutter 77 and / or the upper cutter 18 of the first cutting device 13 and then to carry out the edge cutting. The support element 78 preferably has a predefined distance from the lower cutter 77 during the edge cutting process, so that the cutting edge 21 of the upper cutter 19 can be moved, in particular lowered, at least a predefined distance below the cutting edge 81 of the lower cutter 77 and / or below the first table plane E. This results in a gap that forms part of the cutting gap 76. This gap extends, for example, over at least 2 mm, preferably at least 4 mm, and independently of this, for example over a maximum of 20 mm, more preferably at most 10 mm, even more preferably at most 8 mm, along the transport path provided for the sheet stack 26. However, when positioning the sheet stack 26, an edge region 92 of the sheet stack 26 must pass through this gap. In doing so, there may be a risk that at least the edge of the lowermost sheet 71 slips into the gap and is therefore no longer supported by the support element 78. For this reason, the support element 78 is first positioned in the entry position, then the sheet stack 26 is positioned relative to the lower cutter 77 and / or the upper cutter 18 of the first cutting device 13, and then the support element 78 is moved, in particular raised and / or pivoted, into the support position, possibly lifting up a portion of the sheet 71 to be cut of the sheet stack 26. Preferably, at least one contact surface 79 of at least one support element 78 is arranged under the first table plane E when the support element 78 is arranged in the entry position and is arranged closer to the cutting edge 81 of the lower cutter 77 than when the support element 78 is arranged in the removal position. Preferably, at least one contact surface 79 of at least one support member 78 is positioned closer to the cutting edge 81 of the lower cutter 77 when the support member 78 is positioned in the support position than when the support member 78 is positioned in the approach position (the support member 78 is illustratively shown in its approach position in FIG. 2).

[0032] The support position of the support member 78 serves in particular to support at least the lowermost sheet 71 of the sheet stack during the edge cutting process and thus to prevent incomplete cutting of this sheet 71. For this purpose, the contact surface 79 of the support member 78 arranged in the support position is preferably contained within the first table plane E or is arranged only very slightly offset from the first table plane E (the support member 78 is shown exemplarily in its support position in FIG. 3).

[0033] The first removal position of the support member 78 is used in particular for removing waste pieces 91 that are too small for further processing, in particular cut-off edge pieces of the sheet stack 26. For this purpose, the support member 78 is preferably moved into the first removal position in which its contact surface 79 is arranged substantially completely outside the first table plane E. Preferably, the contact surface 79 of the support member 78 is arranged at an angle in the first removal position, so that these cut-off edge pieces preferably slide off the support member 78. For example, this is already sufficient for their removal. If this is not the case, the support member 78 can be moved further, in particular into the second removal position, in order, for example, to provide more space or to widen a narrow section. The second removal position of the support member 78 is thus used in particular for reliable removal of the cut edge pieces of the sheet stack 26 (the support member 78 is shown, for example, in its first removal position in FIG. 5 ). (The support member 78 is shown, for example, in its second removal position in FIG. 6 ).

[0034] The switching axis 82 is preferably oriented horizontally. The switching axis 82 preferably extends in a transverse direction A, which is preferably parallel to the direction in which the cutting edge 81 of the lower cutter 77 extends. The switching axis 82 is preferably located below the table plane E. For example, the switching axis 82 is located in the cutting gap 76 downstream of the first upstream stack placement surface 04 and / or along the transport path provided for the sheet stack 26, in particular between the first upstream stack placement surface 04 and the first downstream stack placement surface 69, more preferably closer to the first downstream stack placement surface 69 than the first upstream stack placement surface 04. Preferably, at least one swivel drive is arranged for pivoting the at least one placement element 78. The at least one swivel drive is formed, for example, as an electric motor and / or a linear motor and / or a pneumatic drive and / or a hydraulic drive. In one preferred embodiment, at least one swivel drive is formed as a pair of pneumatic cylinders arranged in series, i.e. the first pneumatic cylinder is attached with its mutually movable components on the one hand to a component fixed to the frame of the cutting device and on the other hand to the second pneumatic cylinder. In this case, the second pneumatic cylinder is attached with its mutually movable components on the one hand to the first pneumatic cylinder and on the other hand to a swivellable component which is the support 78 or is rigidly connected to the support 78. In this case, four positions of the support can be realized, in particular the entry position, the support position, the first removal position and the second removal position, by correspondingly controlling the two respective end positions of the two pneumatic cylinders.

[0035] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that the first cutting device 13 has at least one bridge member 83, which is movable, in particular switchable, for example swivellable, between at least one transfer position and at least one interruption position. The bridge member 83 preferably has at least one support surface 84. When the bridge member 83 is arranged in the transfer position, its support surface 84 is preferably completely located in the first table plane E and / or its support surface 84 has a vertical normal vector N84. When the bridge member 83 is arranged in the interruption position, at least 50%, preferably at least 75%, more preferably at least 95%, even more preferably at least 99% of its support surface 84 is located outside the first table plane E and / or its support surface 84 has a normal vector N84 different from the vertical direction V. For example, the at least one bridge element 83 is arranged pivotably about a pivot axis 82, in order in particular to be able to be switched between a number of different positions, such as a transport position and at least one interruption position. This pivot axis 82 is preferably a switching axis 82. The transport position of the bridge element 83 is used in particular to reliably guide the leading end of the sheet stack 26, from which a portion intended as an intermediate stack 28 or a label stack 27 for post-processing is to be cut, to the second stack placement surface 69. For this purpose, the surface normal N84 of the support surface 84 of the bridge element 83 is preferably oriented vertically in the transport position of the bridge element 83 and / or the support surface 84 of the bridge element 83 is preferably included in the first table plane E in the transport position. The at least one interruption position of the bridge element 83 is used in particular to allow an adaptation of the position of the support element 78 and / or to provide space for a movement or displacement of the support element 78. For example, the bridge element 83 can be arranged in a number of different interruption positions. Preferably, the cutting gap 76 can be at least partially covered by a bridge member 83. Preferably, the cutting gap 76 can be at least partially covered by a support member 78.Preferably, the cut gap 76 can be covered at any one time by either the bridge member 83 or the support member 78, or neither.

[0036] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that at least one support member 78 and at least one bridge member 83 are rigidly connected to one another. Preferably, the at least one support member 78 and the at least one bridge member 83 are arranged together so as to be pivotable about a switching axis 82. Preferably, a surface normal N79 of the contact surface 79 of the support member 78 forms an angle W with a surface normal N84 of the support surface 84 of the bridge member 83. This angle W is preferably at least 30°, more preferably at least 45°, even more preferably at least 60°, even more preferably at least 80°. Preferably, the angle W is at most 150°, more preferably at most 135°, even more preferably at most 120°, even more preferably at most 100°.

[0037] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that the first cutting device 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 release position. Preferably, when the shielding element 86 is arranged in its shielding position, the shielding element 86 is arranged at least partially above the first table plane E. Preferably, when the shielding element 86 is arranged in its release position, the shielding element 86 is arranged completely below the first table plane E. The shielding position of the shielding element 86 is used in particular to prevent waste pieces 91, in particular individual components of the cut edge area 92 of the cut sheet stack 26, from being thrown towards the second stack rest surface 69, for example during cutting. Preferably, the at least one shielding member 86 is arranged immovably relative to the at least one support member 78 and / or immovably relative to the at least one bridge member 83. Preferably, the at least one shielding member 86 is also arranged pivotably about the switching axis 82. The release position of the shielding member 86 is used in particular to enable the sheet stack 26 to be fed up to the second stack rest surface 69. For example, the at least one shielding member 86 has at least one inclined surface 88 and / or is used as an inclined member 86 in the at least one release position, which in particular facilitates the feeding of the respective sheet stack 26 across the cutting gap 76. In this case, this special release position of the shielding member 86 is called, for example, an inclined position. The inclined position of the shielding member 86, as a special release position of the shielding member 86, is used in particular when the sheet stack 26 has a drooping leading end, in order to raise it again to the height of the first table plane E when it is fed in the direction of the second stack placement surface 69.

[0038] Small At least one support member 78 is supported at least in its support position. , goodPreferably, the stack stack 26 is always located between the first upstream stack placement surface 04 and the first downstream stack placement surface 69, in particular along the transport path provided for the sheet stack 26. 。

[0039] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that at least one switching device 89 is arranged, which preferably comprises at least one support member 78 and at least one bridge member 83. Furthermore, the at least one switching device 89 also preferably comprises at least one shielding member 86. The at least one switching device 89 has, for example, a base body 91, relative to which the at least one support member 78 and the at least one bridge member 83, and further preferably also the at least one shielding member 86, are arranged stationary and / or to which the at least one support member 78 and the at least one bridge member 83, and further preferably also the at least one shielding member 86, are attached. Preferably, the at least one switching device 89, and in particular its base body 91, is arranged pivotably about a switching axis 82.

[0040] For example, the switching device 89 can be switched between at least four or exactly four states. Such a first state is an approaching state. Preferably, when the switching device 89 is placed in the approaching state, the support member 78 is placed in its approaching position. Preferably, when the switching device 89 is placed in the approaching state, the bridge member 83 is placed in its interrupted position. Preferably, when the switching device 89 is placed in the approaching state, the shielding member 86 is placed in its shielding position (the switching device in the approaching state is illustrated in FIG. 2). Such a second state is a supporting state. Preferably, when the switching device 89 is placed in the supporting state, the support member 78 is placed in its supporting position. Preferably, when the switching device 89 is placed in the supporting state, the bridge member 83 is placed in its interrupted position. Preferably, when the switching device 89 is placed in the supporting state, the shielding member 86 is placed in its shielding position (the switching device in the supporting state is illustrated in FIG. 3 and FIG. 4). Such a third state is a transporting state. Preferably, when the switching device 89 is placed in the transfer state, the support member 78 is placed in its, in particular, first, removal position. Preferably, when the switching device 89 is placed in the transfer state, the bridge member 83 is placed in its transfer position. Preferably, when the switching device 89 is placed in the entry state, the shielding member 86 is placed in the release position, in particular in the tilted position (the switching device in the transfer state is illustrated in Figs. 5, 7 and 8). Such a fourth state is the removal state. Preferably, when the switching device 89 is placed in the removal state, the support member 78 is placed in its, in particular, second removal position. Preferably, when the switching device 89 is placed in the removal state, the bridge member 83 is placed in the interrupted position. Preferably, when the switching device 89 is placed in the removal state, the shielding member 86 is placed in the release position (the switching device in the removal state is illustrated in Fig. 6).

[0041] In one alternative or preferred refinement, the stack cutting device 01 is preferably characterized in that a guide surface 87 is arranged below the upper cutter 18, which influences the fall path of the cut stack parts or waste pieces 91, so that the cut stack parts or waste pieces 91 can be guided after sliding off the contact surface 79 of the support device 78 under the force of gravity into a removal device, for example a waste container or a transport means.

[0042] In one alternative or additional refinement, the stack cutting device 01 is preferably characterized in that the first stack cutting device 13 has at least one lowerable cutting auxiliary means 23 which presses a portion of each sheet stack 26 against the first upstream stack placement surface 04 and / or the first stack cutting device 13 has at least one lowerable holder 52 which presses a portion of each sheet stack 26 in particular to be cut against the first downstream stack placement surface 69. In particular, the first cutting device 13 is preferably characterized in that it has at least one first cutting aid 23, in particular a first pressure bar 23, for fixing the sheet stack 26 and / or the intermediate stack 28 and / or the label stack 27, which is arranged movable at least in the vertical direction V and is arranged upstream of the first upper cutter 18 along the conveying path provided for the conveying of the sheet stack 26 and / or the intermediate stack 28 and / or the label stack 27. Preferably, the first cutting aid 23 provides a cutting force of 0.5 N / mm 2 (1 / 2 Newton per square millimeter) ~ 2N / mm 2 A maximum pressing pressure of 2 Newtons per square millimeter is applied. This can ensure that the layers are not displaced from one another during cutting and that all layers are cut accurately. For example, at least one first holder 52 is arranged downstream of the first upper cutter 18 along the provided transport path, which is used in particular to prevent the cut components from scattering uncontrollably.

[0043] In an alternative or additional refinement, the first cutting device 13 is preferably characterized in that it has at least one first cutting drive M1 for moving the first cutter bar 16 in the first operating direction A1 and / or in a direction opposite to the first operating direction A1. The at least one first cutting drive M1 is formed, 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.

[0044] The preferably arranged second cutting device 14 preferably has at least one second cutter bar 17, on which a second cutter 19, referred to as second upper cutter 19, is arranged. The second upper cutter 19 has in particular a second upper cutting edge 22, which is preferably formed as a straight cutting edge 22. The second cutter bar 17 is preferably arranged to be movable in a second operating direction A2 and / or in a direction opposite to the second operating direction A2, preferably along a straight, more preferably exclusively straight, second operating path.

[0045] In an alternative or additional refinement, the second cutting device 14 is preferably characterized in that it has at least one second cutting aid 24, in particular a second pressure bar 24, for fixing the sheet stack 26 and / or the intermediate stack 28 and / or the label stack 27, which is arranged movable at least in the vertical direction V and is arranged upstream of the second upper cutter 19 along the conveying path provided for the conveying of the sheet stack 26 and / or the intermediate stack 28 and / or the label stack 27. Preferably, the second cutting aid 24 provides a cutting force of 0.5 N / mm 2 (1 / 2 Newton per square millimeter) ~ 2N / mm 2A maximum pressing pressure of 2 Newtons per square millimeter is applied. This can ensure that the layers are not displaced from one another during cutting and that all layers are cut accurately. For example, at least one second holder 67 is arranged downstream of the second upper cutter 19 along the provided transport path, which is used in particular to prevent the cut components from scattering uncontrollably.

[0046] In an alternative or additional refinement, the second cutting device 14 is preferably characterized in that it has at least one second cutting drive M2 for moving the second cutter bar 17 in the second operating direction A2 and / or in a direction opposite to the second operating direction A2, the at least one second cutting drive M2 being formed as an electric motor M2 and / or as a linear motor M2 and / or as a pneumatic drive M2 and / or as a hydraulic drive M2.

[0047] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that it has at least one first stack positioning device 02, which in particular positions at least one sheet stack 26, respectively. The pivot axis arranged corresponding to this first stack positioning device 02 is preferably oriented parallel to the vertical direction V. In an alternative or additional refinement, the stack cutting device 01 and / or each cutting device 13;14 is preferably characterized in that each cutting device 13;14 has at least one sheet feed area 43 and at least one label or security discharge area 44. The stack cutting device 01 is in particular used for producing a plurality of label stacks 27, in particular security stacks 27, respectively, from the at least one sheet stack 26.

[0048] For example, at least one first stack positioning device 02 is arranged in the sheet supply area 43 or along the provided transport path, preferably immediately thereafter. For example, a first cutting device 13 is arranged downstream of the first stack positioning device 02. Preferably, the first cutting device 13 is arranged correspondingly to the first stack positioning device 02, in particular so as to optimally align each sheet stack 26.

[0049] In an alternative or additional refinement, the stack cutting device 01 is preferably characterized in that at least one support element 78 is made of an elastic material, for example rubber. In this case, the support element 78 can be arranged in its support position as close as possible to the lower cutter 77 and, in the event of contact with the upper cutter 18, can be pushed aside by the latter without causing damage. In this way, the critical area of ​​the cutting gap 76 is reduced as effectively as possible. [Explanation of symbols]

[0050] 01 Stack cutting device 02 First stack positioning device 03- 04 First stack placement surface (11) 11 First placement device, table 12 - 13 First cutting device, stack cutting device 14 Second cutting device, stack cutting device 15 - 16 First Cutter Bar 17 Second Cutter Bar 18 First cutter, upper cutter 19 Second cutter, upper cutter 20 - 21 First upper cutting edge 22 Second upper cutting edge 23 First cutting auxiliary means, pressing bar 24 Second cutting auxiliary means, pressing bar twenty five - 26 Sheet Stack 27 Label stack, securities stack 28 Mid Stack 43 Sheet supply area 44 Label derivation area, securities derivation area 52 First Holder 67 Second Holder 68 Second placement device 69 Second stack placement surface (68) 71 sheets 76 Cutting Gap 77 Cutter, lower cutter 78 Support member 79 Contact surface(78) 80 - 81 Lower cutting edge (77) 82 Swivel axis, switching axis 83 Bridge members 84 Support surface(83) 85 - 86 Shielding members, inclined members 87 Guide Surface 88 Slope(86) 89 Switching Device 90 - 91 Discarded Pieces 92 Edge area(71) A direction, horizontal direction A1 First operating direction A2 Second operating direction E First table plane N79 Normal Vector(79) M1 1st pneumatic, hydraulic cutting drive, electric motor, linear motor M2 Second pneumatic, hydraulic cutting drive, electric motor, linear motor N84 Normal Vector(84) V vertical direction W Angle

Claims

1. A stack cutting device (01), comprising at least one first cutting device (13) for cutting at least one sheet stack (26), the stack cutting device (01) comprising at least one first upstream placement device (11) with a first upstream stack placement surface (04), the stack cutting device (01) comprising at least one first downstream placement device (68) with a first downstream stack placement surface (69), the first downstream stack placement surface (69) being used to support at least one cut intermediate stack (28) or label stack (27), respectively, and a cutting gap ( 76) is arranged on a first upstream stack placement surface (04) included in a first table plane (E), the first cutting device (13) has at least one movable upper cutter (18) and at least one lower cutter (77) with a cutting edge (81), the first cutting device (13) has at least one first cutting assistant (23) for fixing the sheet stack (26), the first cutting assistant (23) being arranged movable at least in the vertical direction (V) and arranged upstream of the first upper cutter (18) along a transport path provided for the transport of the sheet stack (26) and / or the intermediate stack (28) and / or the label stack (27), The first upper cutter (18) is arranged closer to the first upstream placement device (11) than to the first downstream placement device (68), and the first cutting device (13) has at least one movable support member (78) having at least one contact surface (79) provided for supporting the sheet (71) and arranged to be movable at least between a support position and at least one first removal position, and the at least one support member (78) is arranged to be in contact with the first upstream stack placement surface (04) and the first upstream stack placement surface (05) at least in its support position. a first downstream stack placement surface (69) and a second downstream stack placement surface (69) of the support member (78), the at least one contact surface (79) of the support member (78) being located inside and / or below the first table plane (E) when the support member (78) is located in the support position, and the at least one contact surface (79) of the support member (78) being located closer to the cutting edge (81) of the lower cutter (77) when the support member (78) is located in the support position than when the support member (78) is located in the removal position.

2. 2. A stack cutting device according to claim 1, characterized in that the support member (78) is arranged pivotably about a switching axis (82).

3. 3. The stack cutting device according to claim 1 or 2, characterized in that the first cutting device (13) has at least one bridge element (83), which is movable between at least one transfer position and at least one interruption position, the bridge element (83) having at least one support surface (84), which, when the bridge element (83) is arranged in the transfer position, is located in the first table plane (E) and / or has a normal vector (N84) in the vertical direction, and when the bridge element (83) is arranged in the interruption position, the support surface (84) is located outside the first table plane (E) for at least 50%, at least 75%, at least 95%, and / or at least 99% and / or has a normal vector (N84) different from the vertical direction.

4. 4. A stack cutting device according to claim 3, characterized in that the at least one bridge element (83) is arranged pivotably about a pivot axis (82).

5. 4. A stack cutting device according to claim 3, characterized in that said at least one support member (78) and said at least one bridge member (83) are rigidly connected to each other.

6. 4. The stack cutting device according to claim 3, characterized in that the surface normal (N79) of the contact surface (79) of the support member (78) forms an angle (W) with a surface normal (N84) of the support surface (84) of the bridge member (83), the angle (W) being at least 30°, and / or at least 45°, and / or at least 60°, and / or at least 80°, and the angle (W) being at most 150°, and / or at most 135°, and / or at most 120°, and / or at most 100°.

7. 3. The stack cutting device according to claim 1 or 2, characterized in that the first cutting device (13) has at least one shielding member (86), which is movable between at least one shielding position and at least one release position, and when the shielding member (86) is arranged in its shielding position, the shielding member (86) is at least partially arranged above the first table plane (E), and when the shielding member (86) is arranged in its release position, the shielding member (86) is completely arranged below the first table plane (E).

8. 3. The stack cutting device according to claim 1 or 2, characterized in that the at least one contact surface (79) of the support member (78) is at least partially arranged below the first table plane (E) when the support member (78) is arranged in the removal position, or the at least one contact surface (79) of the support member (78) is completely arranged below the first table plane (E) when the support member (78) is arranged in the removal position.

9. 3. A stack cutting device according to claim 1 or 2, characterized in that a guide surface (87) is arranged below the upper cutter (18) to influence the falling path of the cut stack components.

10. 3. The stack cutting device according to claim 1 or 2, characterized in that the first cutting aid (23) is formed as a lowerable cutting aid (23) which presses a part of each sheet stack (26) against the first upstream stack placement surface (04).

11. 3. The stack cutting device according to claim 1 or 2, characterized in that the first cutting device (13) has at least one lowerable holder (52) which presses a portion of each sheet stack (26) against the first downstream stack placement surface (69).

12. 3. The stack cutting device according to claim 1 or 2, characterized in that the support member (78) is arranged pivotably about a switching axis (82), the switching axis (82) being located below the table plane (E).

13. Stack cutting device according to claim 12, characterized in that the switching axis (82) is located within the cutting gap (76).

14. 13. A stack cutting device according to claim 12, characterized in that the switching axis (82) lies downstream of the first upstream stack placement surface (04) along a transport path provided for the sheet stack (26).

15. 13. The stack cutting device according to claim 12, characterized in that the switching axis (82) is located along the transport path provided for the sheet stack (26) between the first upstream stack placement surface (04) and the first downstream stack placement surface (69) closer to the first downstream stack placement surface (69) than to the first upstream stack placement surface (04).

Images