Retardation device, carrier device for an installation, in particular corrugated board installation, and method

Abstract

The deceleration device 6 according to the invention for braking sheets, in particular corrugated cardboard sheets, transported in a transport direction T, comprises: at least one support device 7, at least one deceleration element 10, which is arranged on the support device 7, a coupling segment 8, which is part of the support device 7 and which is designed and configured to engage positively with a counter-segment 13, and a spring element 9, which is part of the support device 7 and which is designed and configured to press against a contact surface of the counter-segment 13 in a final assembly position 17. The coupling segment 8 is designed and configured to be pivoted relative to the counter-segment 13 in engagement with it and, for this purpose, has at least one curved geometry K in cross-section in the transport direction T.

Description

[0001] The invention relates to a deceleration device for slowing down sheets, particularly corrugated cardboard sheets, transported in a conveying direction. The invention further relates to an associated holding device which engages with such a deceleration device in a final assembly position. The invention also relates to a corrugated cardboard production line comprising the deceleration device and the holding device. Furthermore, the invention relates to methods for assembling and disassembling individual deceleration devices.

[0002] A corrugated board plant is used to produce corrugated board. Corrugated board plants are regularly divided into a so-called "wet end" and a so-called "dry end".

[0003] In the wet end, a virtually endless corrugated board web is produced from three or more quasi-endless paper webs. This part of the system is called the wet end because moist adhesive is applied and dried here. The dry end comprises all the equipment required for further processing of the dry, quasi-endless corrugated board web. The present invention relates at least substantially to the dry end.

[0004] One of the devices in the dry end is the so-called sheet tray. Pre-cut corrugated cardboard sheets enter the sheet tray on a conveyor belt. In the sheet tray, the pre-cut corrugated cardboard sheets are slowed down, shingled, and then stacked. The present invention relates at least substantially to the sheet tray.

[0005] The bow tray preferably has one or more of the following stations: a brush station; a separation station; a belt station; a pull-out station; and a stacking chamber station.

[0006] In the brushing station, the pre-cut corrugated cardboard sheets entering in the transport direction are preferably slowed down and laid down by brush structures and / or spring plates. This slowing down and laying down of the individual corrugated cardboard sheets creates a shingled web, also known as shingled corrugated cardboard sheets. These are individual corrugated cardboard sheets that lie at least partially on top of each other.

[0007] At the junction station, the shed track is separated and a new shed track including a track gap is formed.

[0008] The next step is preferably the conveyor station, which transports the new shingle conveyor further, in particular to the take-out station. The take-out station is preferably designed and equipped to align the individual corrugated board sheets for further processing in the subsequent stacking chamber station.

[0009] The stacking chamber station lays the incoming, overlapping sheets of corrugated board on top of each other. Various stops ensure a uniform stack of individual corrugated board sheets. This is typically the final step in a corrugated board production line.

[0010] The core of the invention relates to the sheet tray arranged in the dry end, in particular the brush station, which slows down the individual corrugated cardboard sheets from a production speed to a defined further processing speed in the sheet tray.

[0011] The term "sheet brake element" encompasses, in light of the state of the art and the invention, spring plates and / or bristle-bearing brushes for braking individual corrugated cardboard sheets.

[0012] Such brush stations are known, for example, from US 5,992,844 A or DE 198 24 694 A1. As disclosed in US 5,992,844 A, the braking of the individual corrugated board sheets is regularly achieved by bristle-equipped brushes. DE 198 24 694 A describes elastic brushes that brake the individual corrugated board sheets. The braking effect and / or braking force of such designs is sometimes unsatisfactory, which is why spring plates are also frequently used in the prior art.

[0013] EP 2 837 90 B1 also discloses a brush station for braking individual sheets of corrugated board. Here, braking is achieved using spring plates. A holder is described that combines a large number of spring plates. A plurality of such holders are preferably distributed side by side across the entire working width of the machine. The disclosed design aims to provide a high braking force while simultaneously ensuring high wear resistance. Due to the continuous force absorption by the sheet brake elements, regular wear of the sheet brake elements occurs. Despite the desired high wear resistance of the disclosed solution, regular replacement of the holders is necessary.

[0014] In practice, a detachable connection is regularly used to fasten such spring plates or supports, in order to on the one hand to transfer the forces into the system when the bows are braked and at the same time to allow for non-destructive replacement, since these spring plates or supports are considered wear parts.

[0015] Furthermore, in practice a large number of individual curved brake bodies are regularly fitted across the entire machine width, which can lead to long assembly times and complex maintenance if several curved brake bodies need to be replaced individually.

[0016] To consistently meet current market demands, it is essential to continuously improve the corrugated board production line through ongoing development. Given high labor costs and a shortage of skilled workers, providing a simple form of machine maintenance is particularly important, especially when replacing individual components such as sheet brake bodies.

[0017] The invention is based on the objective of providing a deceleration device for slowing down sheets, particularly corrugated board sheets, transported in a single direction, which features a maintenance-friendly design while maintaining at least a constant braking effect or braking force. Furthermore, to achieve this maintenance-friendly design, a suitable holding device as a counterpart for such a deceleration device is to be provided. A system, particularly a corrugated board system, with at least one corresponding deceleration device is also to be presented. In addition, suitable assembly and disassembly methods are to be provided.

[0018] This problem is solved according to the invention by a delay device according to claim 1, a holding device according to claim 10, a system according to claim 19, an assembly method according to claim 20 and by a disassembly method according to claim 21. Advantageous embodiments, further developments and variants are the subject of the dependent claims and the description.

[0019] The deceleration device according to the invention for slowing down sheets transported in a transport direction, in particular corrugated cardboard sheets, comprises: at least one support device, at least one deceleration element arranged on the support device, a coupling segment which is part of the support device and which is designed and configured to engage positively with a counter-segment, and a spring element which is part of the support device and which is designed and configured to press against a contact surface of the counter-segment in a final assembly position. The coupling segment is designed and configured to be pivoted relative to the counter-segment in engagement with it and, for this purpose, has at least one curved geometry in cross-section in the transport direction.

[0020] The term "deceleration device" according to the present invention refers to a component of a single machine in a corrugated board production line that decelerates or slows down the pre-cut corrugated board sheets entering in the transport direction. Deceleration is also defined as negative acceleration. In a corrugated board production line, this is typically achieved by a brush station. In such a station, the pre-cut corrugated board sheets entering in the transport direction are preferably slowed down by the sheet braking elements, in particular brushes with bristles and / or spring plates.

[0021] The term "transport direction" according to the present invention defines the direction in which both the virtually endless corrugated board web in the wet end and the finished corrugated board sheets in the dry end pass through the system, in particular the corrugated board system. Thus, the term transport direction describes the main conveying direction or production direction of a system, in particular a corrugated board system.

[0022] The term "corrugated board sheets" according to the present invention refers to a plurality of "corrugated board sheets." A "corrugated board sheet" is a finished piece of corrugated board, defined in particular by the fact that the individual paper webs of the corrugated board are glued together and cut to a specific dimension. Preferably, the length and / or width of the individual corrugated board sheets can be individually adjusted on the corrugating machine. Preferably, the corrugated board sheet has at least one groove for a potentially subsequent folding process.

[0023] The term "carrier device" according to the present invention refers to an auxiliary component, preferably designed as a single piece, which can be functionally differentiated into two separate components: a coupling segment and a spring element. The coupling segment has the technical function of engaging positively with the opposing segment, and the spring element serves as a locking mechanism. The carrier device preferably facilitates the maintenance-friendly assembly and disassembly of a delay element on a holding device.

[0024] The "deceleration element" according to the present invention is a single-piece or multi-piece component of the carrier device, which in turn, together with the holding device, forms the deceleration device. The term "deceleration element" preferably encompasses spring plates and / or bristle-equipped brushes for slowing down the individual corrugated board sheets. The contact between the deceleration elements and the pre-cut corrugated board sheets entering in the transport direction generates a frictional force that causes the deceleration. The term "deceleration element" is at least essentially synonymous with the prior art term "sheet brake element."

[0025] The "coupling segment" according to the present invention is a one-piece or multi-piece component of the support device, which is designed to engage positively with the opposing segment of a holding device in a final assembly position.

[0026] The term "positive locking engagement" according to the present invention refers to a positive locking connection, also called a positive locking connection. A positive locking engagement is created by the interlocking of several elements, according to the present invention, the coupling segment of the delay device and the counter-segment of a holding device, wherein a locking effect restricts the relative movement of the two elements to each other in at least one degree of freedom. Preferably, to fulfill the feature of "positive locking engagement," it is not necessary that all six degrees of freedom in three-dimensional space be restricted. This is often achieved through design details, preferably through the curve geometry disclosed in this document.

[0027] The "spring element" according to the present invention, in addition to the coupling segment, is a further functional component of the support device. Spring elements are typically elastic components used for locking, positioning, and clamping. In the context of the present invention, the term "elastic component" refers to a component that, after loading and subsequent unloading, returns at least substantially to its original shape, i.e., no permanent deformation occurs. Materials with a modulus of elasticity of 30,000 N / mm² to 100,000 N / mm², preferably 50,000 N / mm² to 80,000 N / mm², are particularly suitable for a spring element. For locking, positioning, and clamping, the existing spring force of the spring element must be overcome. Spring force is defined as the ratio of the force acting on the spring to the deflection (extension / compression) of the spring.The spring element of the support device facilitates maintenance-friendly assembly and disassembly of a delay element on a holding device. By utilizing the spring element, the support device is clamped or locked to the opposing segment. Therefore, during assembly or disassembly, it is sufficient to overcome the spring force of the spring element to clamp or lock the support device to the opposing segment.

[0028] The "counter-segment" is mounted, integrally formed, or arranged on the holding device according to any one of claims 10 to 18. Technically speaking, the counter-segment is a further auxiliary component designed and configured to engage positively with the coupling segment in the final assembly position. Therefore, the counter-segment is preferably designed such that it engages positively with a coupling segment of a delay device in the final assembly position.

[0029] In the context of the present invention, the term "pivoting" refers to a rotational movement of at least one component relative to another about at least one spatial axis. The pivoting process preferably includes mutual alignment and engagement of the coupling segment of the support device and the counter-segment of the holding device. The coupling segment and the counter-segment are preferably pivoted such that, in the final assembly position, they are in a positive-locking engagement.

[0030] In the context of the present invention, the term "cut in the direction of transport" means a cut in a plane wherein (a) the plane is spanned perpendicular to the plane of transport and (b) the vector of the direction of transport lies in the plane of cutting.

[0031] It is particularly advantageous to select a cam geometry for the coupling segment that is suitably adapted to the cam geometry of the mating segment to ensure a positive engagement between the coupling segment and the mating segment in the final assembly position. This can be achieved through design details such as a plug connection and / or clamp connection. A particularly advantageous embodiment, especially as shown in the figures, is one in which the coupling segment and the mating segment are pivoted relative to each other within a rotational range of 0 to 120°, preferably up to 90°, and most preferably up to 75°, in order to engage in a positive engagement.

[0032] The term "final assembly position" within the meaning of the present invention refers to a positive-locking positioning and fastening of the coupling segment of the delay device with the counter-segment of the holding device, wherein the delay device is attached to the holding device in such a way that it can be used in the system, in particular a corrugated board system, during regular operation.

[0033] A preferred embodiment of the delay device further comprises a locking element which, in the final assembly position, is in positive engagement with the carrier device, thereby increasing the spring stiffness of the spring element, thereby at least substantially preventing the spring element from springing back.

[0034] The "locking element" within the meaning of the present disclosure is a component independent of the carrier device and a holding device, which is designed and configured to additionally secure the positive engagement between the coupling segment of the carrier device and the mating segment of a holding device. It is particularly advantageous if the locking element is designed as a screw connection, pin, or bolt.

[0035] A screw connection is a detachable connection between two or more components. Preferably, the screw has an external thread and the components have an internal thread to connect them via the screw.

[0036] Preferably, at least two or more components are positively connected to each other in the radial direction of the pin by means of a pin. The pin is inserted through a hole provided in all components and held in place by friction in at least one of the components.

[0037] Compared to a pin, a bolt is easier to disassemble because it typically uses a clearance fit. A bolt is preferably used under transverse loads (shear). Unlike a pin, a bolt also has a head, which prevents the bolt from being lost or slipping during positive engagement. Preferably, the bolt is held in position by gravity and / or another locking component, in particular a nut, a pin, a snap ring, or the like.

[0038] This is particularly advantageous because the locking element runs exclusively through the coupling segment and the spring element, and therefore the opposing segment does not need to have a suitable recess for the locking element.

[0039] In a preferred further development of the delay device, the locking element is further designed and configured to additionally engage positively with the opposing segment in the final assembly position.

[0040] It is particularly advantageous that the locking element connects the coupling segment, the spring element and the counter segment to further increase the stiffness of the overall system.

[0041] In a preferred embodiment of the delay device, the locking element is arranged vertically or horizontally.

[0042] In the context of the present invention, the directions "vertical" and "horizontal" always refer to the direction of transport, wherein "horizontal" corresponds to the direction of transport through the system and "vertical" denotes the perpendicular to the direction of transport.

[0043] The vertical arrangement of the locking element is particularly advantageous because it ensures easy attachment, especially simple fastening and removal, of the locking element when changing the delay device. Furthermore, vertical mounting of the locking element is especially advantageous because no other machine parts of the system, particularly the corrugated board system, are located directly above the locking element, thus ensuring accessibility of the locking element during assembly and disassembly.

[0044] In a different layout of the plant, particularly a corrugated board plant, a horizontal arrangement of the securing element might be more advantageous, depending on how accessible the securing element is during assembly and disassembly.

[0045] In a preferred embodiment of the delay device, the locking element is provided and arranged to be in positive engagement with the carrier device and the counter-segment in the final assembly position.

[0046] It is particularly advantageous that the spring element is not locked by the locking element, in order to allow a slight rebound of the spring element.

[0047] In a preferred embodiment of the delay device, the locking element is designed and configured to form a non-destructively releasable connection with the support device and / or the spring element and / or the counter segment, in particular by means of a screw connection, a bolt, or a pin. The connection of the individual components is preferably realized by the locking element.

[0048] The term "non-destructively detachable connection" refers to a connection between at least two components that is designed and configured so that the individual components are not irreparably damaged before, after, or during the connection.

[0049] This is particularly advantageous because a non-destructive, detachable connection is chosen for attaching the locking element in order to keep the assembly effort as low as possible when changing the delay device.

[0050] The locking element can alternatively be designed as a conditionally detachable connection, in particular as a rivet.

[0051] This is particularly advantageous because only the rivet needs to be destroyed as an auxiliary joining element, and the delay device and the counter-segment are not damaged.

[0052] In a preferred embodiment of the delay device, the support device is formed at least substantially by an extruded profile.

[0053] In an alternative further development of the delay device, the delay element is formed at least essentially by an extruded profile.

[0054] In an alternative further development of the delay device, the coupling segment is formed at least essentially by an extruded profile.

[0055] In an alternative further development of the delay device, the spring element is formed at least essentially by an extruded profile.

[0056] In an alternative further development of the delay device, the holding device is formed at least essentially by an extruded profile.

[0057] In an alternative further development of the delay device, the counter segment is formed at least essentially by an extruded profile.

[0058] The term "extruded profile" here refers to a component manufactured using a primary and secondary forming process, such as bars, tubes, or, in particular, irregularly shaped prismatic profiles. The term "extruded profile" as used in this disclosure also includes components that have undergone post-processing after primary and secondary forming, for example, by drilling or grinding.

[0059] In a preferred embodiment of the delay device, the support device is formed at least substantially by an extruded profile, in particular an extruded profile made of an aluminum alloy.

[0060] An alternative training program proposes that some or all components be made of an aluminum alloy. In this context, "component" refers to the support device, the coupling segment, the spring element, the deceleration element, the holding device, and the counter segment.

[0061] An aluminum alloy has particularly advantageous material properties for the support device, especially with regard to at least one of the following properties: strength, hardness, ductility, durability, processability, weight or cost-efficiency.

[0062] In an alternative further development of the delay device, the support device is formed at least substantially by an extruded profile, in particular an extruded profile made of a plastic.

[0063] In an alternative training program, it is stipulated that some or all components are made of a plastic. In this context, "component" refers to the support device, the coupling segment, the spring element, the deceleration element, the holding device, and the counter segment.

[0064] A plastic is a solid whose basic component is synthetically or at least partially synthetically produced polymers. Suitable plastics include, for example, polyvinyl chloride (PVC), polyethylene (PE), polypropylene (PP), polyamides (PA), polyoxymethylene (POM), polyethylene terephthalate (PET), fluoropolymers (PTFE, PVDF, ECTFE, PFA, FEP, and MFA), high-performance plastics (PEEK, PEI, PES, PSU, and PPS), and polycarbonate (PC). A plastic exhibits particularly advantageous material properties for the carrier device, especially with regard to at least one of the following properties: strength, resistance, lightness, or cost-effectiveness.

[0065] In an alternative training program, it is stipulated that individual or all components are made from a different, commonly used material in mechanical engineering (e.g., steel, metal alloys, or ceramics). In this context, "component" refers to the support device, the coupling segment, the spring element, the deceleration element, the holding device, and the counter segment.

[0066] In a preferred embodiment of the delay device, the spring element is provided and arranged to create a positive-locking connection between the coupling segment and the counter-segment.

[0067] This is particularly advantageous because the spring element, due to its spring action, requires less force during the creation of the positive locking connection between the coupling segment and the counter-segment than if the support device were rigid in the area of ​​the positive locking.

[0068] In a preferred embodiment of the delay device, the spring element has a detent lug which is specifically designed and configured to engage behind an undercut of the opposing segment in the final assembly position.

[0069] This is particularly advantageous because an additional locking element is not necessarily required to achieve the final assembly position, as the locking lug itself serves as such a locking element. Furthermore, it is especially beneficial that no additional technical aids, such as tools, are required during assembly.

[0070] A further preferred embodiment provides that the locking lug is made of a material with lower strength compared to an aluminum alloy, so that the locking lug can be broken during disassembly without damaging the delay device. Strength is the resistance a material offers to deformation due to its composition, structure, and microstructure. The plastic deformation or breakage of the locking lug releases the locking element, and the delay device can then be disassembled. In the context of the present invention, "plastic deformation" refers to the permanent deformation that occurs after the component has been loaded and unloaded. This is referred to as permanent plastic deformation or plastic material behavior.In the context of the present invention, the term "fracture" refers to a destruction of the component that goes beyond plastic deformation. A light metal (for example, magnesium) is preferred for the locking lug, which can sufficiently counteract the forces of the corrugated cardboard sheets to be slowed down, but also has a lower strength than the material of the deceleration device.

[0071] In an alternative embodiment, the locking lug preferably consists of a plastic, wherein in particular the strength of the locking lug is lower than the strength of the delay device.

[0072] In a preferred embodiment of the delay device, the spring element has a disassembly element projecting from the carrier device, which is provided and arranged so that the end of the disassembly element facing away from the delay device can be pivoted from the final assembly position in order to release the spring element from the contact surface of the counter segment, in particular the detent with the undercut.

[0073] This is particularly advantageous because the locking tab can be released with minimal effort using a disassembly element, especially manually without additional technical aids.

[0074] In a preferred embodiment of the deceleration device, the curve geometry is provided and arranged to be pivoted in engagement with the counter-segment relative to it about a pivot axis, wherein the pivot axis runs at least substantially in the plane of the transported arcs and perpendicular to the transport direction.

[0075] This is particularly advantageous because no other machine parts of the system, especially the corrugated board system, are located directly above the locking element, thus ensuring accessibility during assembly and disassembly. It is also advantageous that the locking effect of the positive engagement continues to prevent pivoting around the pivot axis.

[0076] In a preferred embodiment of the delay device, the curve geometry is designed and configured to engage with the counter-segment during assembly, pivoting around the pivot axis from above or below, starting from the plane of the transported arcs.

[0077] This is particularly advantageous because pivoting the coupling segment with the opposing segment from above or below ensures a vertical locking mechanism. Thus, according to at least one of the aforementioned improved versions, the locking element serves as a horizontal locking device, regardless of its precise design.

[0078] The holding device according to the invention is preferably coupled with a delay device according to the invention. The holding device and the delay device are thus interrelated devices that realize a single general inventive idea and whose technical features, which contribute to the available prior art, are identical or correspond to each other. In other words, the holding device and the delay device complement each other or interact together.

[0079] The holding device according to the invention for coupling with a deceleration device is characterized in that (a) the deceleration device is provided and configured for braking sheets, in particular corrugated cardboard sheets, transported in a transport direction, that (b) the deceleration device is preferably designed according to one of the embodiments described herein, and that (c) the holding device has at least one counter segment which is arranged on the holding device, characterized in that (d) the counter segment is provided and configured to engage in a positive-locking engagement with a coupling segment, in particular the deceleration device, (e) wherein the counter segment is provided and configured to be pivoted relative to the coupling segment in engagement with it, and for this purpose has at least one curved geometry in cross-section, cut in the transport direction, and (f) at least one contact surface.which is formed on the holding device and which is designed and equipped to be subjected to a force by a spring element of the support device in a final assembly position.

[0080] The "holding device" according to the present invention preferably extends transversely to the transport direction across the entire working width of the system, in particular a corrugated board system. The holding device is preferably a support extending transversely to the transport direction, which is preferably designed to absorb acting forces.

[0081] This is particularly advantageous because the counter-segment, when cut in the transport direction, has at least one curved geometry in cross-section which is designed and configured to pivot relative to the coupling segment when engaged with it. The curved geometry of the coupling segment and the curved geometry of the counter-segment are thus designed such that they engage in a positive-locking manner; in particular, a positive-locking interlocking is intended. The interaction of the curved geometries vertically locks the coupling segment and the counter-segment.

[0082] It is also advantageous that a contact surface is provided and set up on the holding device in order to be subjected to a force by a spring element of the support device of the delay device in a final assembly position.

[0083] In a preferred embodiment of the holding device, the holding device further comprises a locking element which, in the final assembly position, is in positive engagement with the holding device and is designed and configured to increase the spring stiffness of a spring element of the delay device, in particular to prevent at least a substantial amount of the spring element from springing back.

[0084] A particular advantage here is that the locking element only secures the holding device and the counter-segment.

[0085] In a preferred further development of the holding device, the locking element is further designed and configured to additionally engage positively with the coupling segment in the final assembly position.

[0086] In a preferred embodiment, the holding device further comprises a recess for the positive locking of the locking element, which is arranged in particular vertically or horizontally.

[0087] This is particularly advantageous because, during assembly, the recess serves as a guide for positioning the locking element.

[0088] In a preferred embodiment of the holding device, the holding device further comprises a locking element which is designed and configured to engage positively with the counter-segment and the support device in the final assembly position.

[0089] This is particularly advantageous because the coupling segment is locked to the opposing segment.

[0090] In a preferred embodiment of the holding device, the locking element is provided and configured to form a non-destructively detachable connection, in particular a screw connection, with the coupling segment and / or the counter segment.

[0091] This is particularly advantageous because it keeps the assembly effort for replacing wear parts as low as possible.

[0092] Furthermore, a conditionally detachable fastening, in which only the auxiliary joining elements need to be destroyed (e.g., a rivet connection), would also be suitable. In this case, the components of the delay device and the holding device would also not be damaged.

[0093] In a preferred embodiment of the holding device, the counter segment is formed at least substantially by an extruded profile.

[0094] In a preferred embodiment of the holding device, the counter segment is formed at least substantially by an extruded profile, in particular an extruded profile made of an aluminum alloy.

[0095] In a preferred embodiment of the holding device, the counter segment is formed at least substantially by an extruded profile, in particular an extruded profile made of a plastic.

[0096] The statements made in the disclosure concerning aluminium alloys also apply mutatis mutandis to the counterpart segment.

[0097] The statements made regarding plastics in the disclosure also apply mutatis mutandis to the counterpart segment.

[0098] The statements made in the disclosure concerning other common materials in mechanical engineering also apply mutatis mutandis to the counterpart segment.

[0099] In a preferred embodiment of the holding device, the holding device is designed and configured to create a positive locking connection between the counter segment and the spring element, in particular the spring element of the deceleration device.

[0100] In a preferred embodiment, the holding device further comprises a recess which is specifically designed and configured to engage with a locking lug of a spring element.

[0101] In a preferred embodiment of the holding device, the curve geometry is provided and arranged to be pivoted about a pivot axis in engagement with the coupling segment relative to it, wherein the pivot axis runs at least substantially in the plane of the transported arcs and perpendicular to the transport direction.

[0102] This is particularly advantageous because the pivot axis runs perpendicular to the transport direction, as sufficient clearance is available above the holding device for pivoting the counter-segment and the coupling segment during assembly and disassembly. This also ensures the locking effect of the positive engagement in relevant directions of movement.

[0103] In a preferred embodiment of the holding device, the curve geometry is designed and configured to engage with the coupling segment pivoting around the pivot axis during assembly, starting from the plane of the transported arcs from above or below.

[0104] This is particularly advantageous because pivoting the counter-segment with the coupling segment from above or below ensures a vertical locking mechanism. Thus, according to the previous embodiments, the locking element serves as a horizontal locking device, regardless of the exact design.

[0105] The system according to the invention, in particular a corrugated board system, comprises a deceleration device for slowing down sheets transported in a transport direction and a holding device, wherein a coupling segment of the deceleration device and a counter segment of the holding device have corresponding geometries which are provided and configured for sliding engagement with one another. Preferably, the holding device and / or deceleration device is designed according to one of the embodiments shown within the scope of the disclosure.

[0106] In a preferred embodiment of the plant, in particular a corrugated board plant, at least one support device is arranged above the holding device running transversely to the transport direction, preferably a plurality of support devices are arranged, particularly preferably a plurality of support devices are arranged, and most particularly preferably five to ten support devices are arranged.

[0107] The assembly method according to the invention for connecting a delay device with a holding device of a system, in particular a corrugated board system, comprises the following steps: aligning the delay device and the holding device relative to each other in a pre-assembly position; pivoting the delay device and / or holding device relative to each other from the pre-assembly position to a final assembly position, wherein a coupling segment of the delay device engages with a counter segment of the holding device, in particular in a sliding manner; and pressing a spring element of the delay device against a contact surface of the counter segment in the final assembly position to hold the delay device on the holding device in the final assembly position, in particular in a releasable manner.

[0108] In a preferred embodiment of the assembly method, the assembly method further comprises a further step: locking, in particular releasable locking, of the delay device and the holding device by means of a locking element, in particular to at least reduce, preferably to prevent, the risk of an unintentional abandonment of the final assembly position.

[0109] The disassembly method according to the invention for connecting a delay device with a holding device of a system, in particular a corrugated board system, comprises the following steps: releasing a spring element of the delay device, which presses against a contact surface of the counter segment in the final assembly position to hold the delay device on the holding device in the final assembly position, in particular releasably; and pivoting the delay device and / or holding device relative to each other from the final assembly position to a disassembly position, wherein in the final assembly position the coupling segment of the delay device is in engagement with a counter segment of the holding device, in particular sliding engagement, and in the disassembly position the delay device and holding device are no longer in engagement, in particular sliding engagement.

[0110] In a preferred further development of the disassembly method, the assembly method additionally includes the following step, which must be carried out beforehand: Detaching, in particular non-destructively detaching, a locking element from the delay device and / or the holding device.

[0111] This is particularly advantageous because the disassembly process has the reverse sequence of the individual assembly steps of the assembly process, thus also ensuring that wear parts can be replaced with minimal effort.

[0112] The accompanying figures illustrate possible implementation variations of the proposed solution. They show: Fig. 1 shows an overall view of a corrugated board line, consisting of a wet end and a dry end. Fig. 1a shows a detailed view of the brush station arranged in the dry end, in particular in the sheet delivery unit. Fig. 2 shows a delay and holding device according to the invention. Fig. 2a shows a detailed view of the Fig. 2 , in particular an arrangement of the delay and holding device according to the invention. Fig. 3 is a top view of the in Fig. 2 The deceleration and holding device shown spans the entire width of the corrugated board machine. Fig. 4 shows an alternative embodiment of the deceleration and holding device. Fig. 4a shows a detailed view of the Fig. 4 , in particular an alternative embodiment of the delay device. Fig. 5 shows a further alternative embodiment of the delay and holding device with a locking lug and a disassembly element.

[0113] The Fig. 1Figure 1 shows a corrugated board production line 1, consisting of a wet end 2 and a dry end 3 following in the transport direction T. The dry end 3 regularly has a sheet delivery unit 4. The sheet delivery unit 4 in turn regularly has a brush station 5.

[0114] The Fig. 1a shows a more detailed view of the brush station 5, in which the delay device 6 is visible.

[0115] The Figs. 2 and 2a Figure 1 shows a more detailed view of the deceleration device 6 and the holding device 12. The deceleration device 6 consists of a support device 7. This support device 7 has a coupling segment 8 and a spring element 9. The coupling segment preferably has a curved geometry. The deceleration elements 10 are preferably attached to the support device 7. The counter-segment 13 is preferably part of the holding device 12. The locking element 11 serves to fasten the deceleration device 6 to the holding device 12.

[0116] The Fig. 2a shows a detailed view of final assembly position 17.

[0117] The Fig. 3 shows a top view of the in Fig. 2 Deceleration device 6 and holding device 12 shown over the entire machine width M of the corrugated board machine 1.

[0118] The Figs. 4 and 4a Figure 1 shows a more detailed view of an alternative embodiment of the delay device 6 and the holding device 12. The delay device 6 consists of a support device 7. This support device 7 has a coupling segment 8 and a spring element 9. The coupling segment preferably has a curved geometry K. The delay elements 10 are preferably attached to the support device 7. The counter-segment 13 is preferably part of the holding device 12. The locking element 11 serves to fasten the delay device 6 to the holding device 12.

[0119] The Fig. 5Figure 1 shows another alternative embodiment in which the holding device 12 has a recess 16 which is specifically designed and equipped to engage with a locking lug 14 of a spring element 9.

[0120] A corrugated board machine 1 is used for the production of corrugated board. A corrugated board machine 1 is typically subdivided into a wet end 2 and a dry end 3. The present invention relates at least substantially to the dry end 3.

[0121] The dry end 3 typically includes a sheet tray 4. Pre-cut corrugated board sheets enter the sheet tray 4 on a conveyor belt. In the sheet tray, the pre-cut corrugated board sheets are slowed down, shingled, and then stacked. The present invention relates at least substantially to the sheet tray 4. The sheet tray 4 preferably includes a brush station 5.

[0122] The core of the invention relates to the sheet tray 4 arranged in the dry end 3, in particular the brush station 5, which slows down the finished corrugated cardboard sheets entering in the transport direction T from a production speed to a defined further processing speed in the sheet tray 4.

[0123] The invention is based on the objective of providing a deceleration device 6 for braking sheets, in particular corrugated board sheets, transported in a transport direction T, which has a maintenance-friendly design while maintaining at least a constant braking effect or braking force. Furthermore, in order to realize the maintenance-friendly design, a suitable holding device 12 as a counterpart for such a deceleration device 6 is to be provided. A system, in particular a corrugated board system 1, with at least one corresponding deceleration device 6 is also to be presented. In addition, suitable assembly and disassembly methods are to be provided.

[0124] This problem is solved according to the invention by a delay device 6 according to claim 1, a holding device 12 according to claim 10, a system according to claim 19, an assembly method according to claim 20 and by a disassembly method according to claim 21. Advantageous embodiments, further developments and variants are the subject of the dependent claims and the description.

[0125] The deceleration device 6 according to the invention for braking sheets, in particular corrugated cardboard sheets, transported in a transport direction T, comprises: at least one support device 7, at least one deceleration element 10, which is arranged on the support device 7, a coupling segment 8, which is part of the support device 7 and which is designed and configured to engage positively with a counter-segment 13, and a spring element 9, which is part of the support device 7 and which is designed and configured to press against a contact surface of the counter-segment 13 in a final assembly position 17. The coupling segment 8 is designed and configured to be pivoted relative to the counter-segment 13 in engagement with it and, for this purpose, has at least one curved geometry in cross-section in the transport direction T.

[0126] A preferred embodiment of the delay device 6 further comprises a locking element 11 which, in the final assembly position 17, is in positive engagement with the carrier device 7, thereby increasing the spring stiffness of the spring element 9, thereby at least substantially preventing the spring element 9 from springing back.

[0127] In a preferred embodiment of the delay device 6, the locking element 11 is further provided and arranged to be in positive engagement with the counter-segment 13 in the final assembly position 17.

[0128] In a preferred embodiment of the delay device 6, the locking element 11 is arranged vertically or horizontally.

[0129] In a preferred embodiment of the delay device 6, the locking element 11 is provided and arranged to be in positive engagement with the carrier device 7 and the counter segment 13 in the final assembly position 17.

[0130] In a preferred embodiment of the delay device 6, the locking element 11 is designed and configured to form a non-destructively releasable connection with the support device 7 and / or the spring element 9 and / or the counter segment 13, in particular by means of a screw connection, a bolt, or a pin. The connection of the individual components is preferably realized by the locking element 11.

[0131] In a preferred embodiment of the delay device 6, the support device 7 is formed at least substantially by an extruded profile.

[0132] In a preferred embodiment of the delay device 6, the support device 7 is formed at least substantially by an extruded profile, in particular an extruded profile made of an aluminum alloy.

[0133] In a preferred embodiment of the delay device 6, the support device 7 is formed at least substantially by an extruded profile, in particular an extruded profile made of a plastic.

[0134] In a preferred embodiment of the delay device 6, the spring element 9 is provided and configured to create a positive locking connection between the coupling segment 8 and the counter segment 13.

[0135] In a preferred embodiment of the delay device 6, the spring element 9 has a locking lug 14, which is particularly designed and configured to engage behind an undercut of the counter segment 13 in the final assembly position 17.

[0136] In a preferred embodiment of the delay device 6, the spring element 9 has a disassembly element 15 projecting from the carrier device 7, which is provided and arranged so that the end of the disassembly element 15 facing away from the delay device 6 can be pivoted from the final assembly position 17 in order to release the spring element 9 from the contact surface of the counter segment 13, in particular the locking mechanism with the undercut.

[0137] In a preferred embodiment of the deceleration device 6, the curve geometry K is provided and arranged to be pivoted in engagement with the counter segment 13 relative to it about a pivot axis A, wherein the pivot axis A runs at least substantially in the plane of the transported arcs and perpendicular to the transport direction T in this plane.

[0138] In a preferred embodiment of the delay device 6, the curve geometry K is provided and arranged to engage with the counter-segment 13 pivoting about the pivot axis A during assembly, starting from the plane of the transported arcs from above or below.

[0139] The holding device 12 according to the invention for coupling with a deceleration device 6 is characterized in that (a) the deceleration device 6 is provided and configured for decelerating sheets, in particular corrugated cardboard sheets, transported in a transport direction T, that (b) the deceleration device 6 is preferably designed according to one of the embodiments described herein, and that (c) the holding device 12 has at least one counter-segment 13, which is arranged on the holding device 12, characterized in that (d) the counter-segment 13 is provided and configured to engage in a positive-locking manner with a coupling segment 8, in particular the deceleration device 6, (e) wherein the counter-segment 13 is provided and configured to be pivoted relative to the coupling segment 8 in engagement with it, and for this purpose in cross-section, cut in the transport direction T,(f) has at least one curve geometry K and (f) at least one contact surface which is formed on the holding device 12 and which is provided and arranged to be subjected to a force by a spring element 9 of the support device 7 in a final assembly position 17.

[0140] In a preferred embodiment of the holding device 12, the holding device 12 further comprises a locking element 11 which, in the final assembly position 17, is in positive engagement with the holding device 12 and is designed and configured to increase the spring stiffness of a spring element 9 of the delay device 6, in particular to prevent at least substantially a springback of the spring element 9.

[0141] In a preferred embodiment of the holding device 12, the locking element 11 is further provided and arranged to be in positive engagement with the coupling segment 8 in the final assembly position 17.

[0142] In a preferred embodiment, the holding device 12 further has a recess 16 for the positive locking reception of the locking element, which is arranged in particular vertically or horizontally.

[0143] In a preferred embodiment of the holding device 12, the holding device 12 further comprises a locking element 11 which is designed and configured to be in positive engagement with the counter-segment 13 and the carrier device 7 in the final assembly position 17.

[0144] In a preferred embodiment of the holding device 12, the locking element 11 is provided and configured to form a non-destructively detachable connection, in particular a screw connection, with the coupling segment 8 and / or the counter segment 13.

[0145] In a preferred embodiment of the holding device 12, the counter segment 13 is formed at least substantially by an extruded profile, in particular an extruded profile made of an aluminum alloy.

[0146] In a preferred embodiment of the holding device 12, the holding device 12 is provided and configured to create a positive locking connection between the counter segment 13 and the spring element 9, in particular the spring element 9 of the delay device 6.

[0147] In a preferred embodiment, the holding device 12 further has a recess 16 which is specifically designed and configured to engage with a locking lug 14 of a spring element 9.

[0148] In a preferred embodiment of the holding device 12, the curve geometry K is provided and arranged to be pivoted relative to the coupling segment 8 about a pivot axis A in engagement with it, wherein the pivot axis A runs at least substantially in the plane of the transported arcs and perpendicular to the transport direction T in this plane.

[0149] In a preferred embodiment of the holding device 12, the curve geometry K is provided and arranged to engage with the coupling segment 8 pivoting about the pivot axis A during assembly, starting from the plane of the transported arcs from above or below.

[0150] The system according to the invention, in particular the corrugated board system 1, comprises a deceleration device 6 for slowing down sheets transported in a transport direction T and a holding device 12, wherein a coupling segment 8 of the deceleration device 6 and a counter segment 13 of the holding device 12 have corresponding geometries which are provided and configured for sliding engagement with one another. Preferably, the holding device 12 and / or deceleration device 6 is designed according to one of the embodiments shown within the scope of the disclosure.

[0151] In a preferred embodiment of the plant, in particular corrugated board plant 1, at least one support device 7 is arranged above the holding device 12 extending transversely to the transport direction T, preferably a plurality of support devices 7 are arranged, particularly preferably a plurality of support devices 7 are arranged, and most particularly preferably five to ten support devices 7 are arranged.

[0152] The assembly method according to the invention for connecting a delay device 6 with a holding device 12 of a system, in particular a corrugated board system 1, comprises the following steps: aligning the delay device 6 and the holding device 12 relative to each other in a pre-assembly position; pivoting the delay device 6 and / or the holding device 12 relative to each other from the pre-assembly position to a final assembly position 17, wherein a coupling segment 8 of the delay device 6 engages with a counter segment 13 of the holding device 12, in particular by sliding; and pressing a spring element 9 of the delay device 6 against a contact surface of the counter segment 13 in the final assembly position 17 to hold the delay device 6 on the holding device 12 in the final assembly position 17, in particular releasably.

[0153] In a preferred embodiment of the assembly method, the assembly method further comprises a further step: locking, in particular releasable locking, of the delay device 6 and the holding device 12 by means of a locking element 11, in particular to at least reduce, preferably to prevent, the risk of an unintentional abandonment of the final assembly position 17.

[0154] The disassembly method according to the invention for connecting a delay device 6 with a holding device 12 of a system, in particular a corrugated board system 1, comprises the following steps: releasing a spring element 9 of the delay device 6, which presses against a contact surface of the counter segment 13 in the final assembly position 17 to hold the delay device 6 on the holding device 12 in the final assembly position 17, in particular releasably; and pivoting the delay device 6 and / or holding device 12 relative to each other from the final assembly position 17 into a disassembly position, wherein in the final assembly position 17 the coupling segment 8 of the delay device 6 is in engagement, in particular sliding engagement, with a counter segment 13 of the holding device 12, and in the disassembly position the delay device 6 and holding device 12 are no longer in engagement, in particular sliding engagement.

[0155] In a preferred embodiment of the disassembly method, the assembly method further comprises the following step, which must be carried out beforehand: Detaching, in particular non-destructively detaching, a locking element 11 from the delay device 6 and / or the holding device 12.

[0156] The indefinite articles specified in the claims are not to be understood as limiting in number. For example, the delay device may have more than one support device and / or more than one delay element.

[0157] The statements relating to the delay device also apply analogously to the holding device, the combination of a corrugated board system with a delay device and / or a holding device, as well as the assembly and disassembly procedures for connecting and / or disconnecting the delay device with the holding device.

[0158] If process steps have been previously described implicitly or explicitly, advantageous designs for the delay device and / or for the holding device or their combination with a corrugated board system result from the fact that the latter is designed to perform one or more of these process steps. Reference symbol list

[0159] 1 Corrugated board machine 2 Wet-end 3 Dry-end 4 Sheet support 5 Brush station 6 Deceleration device 7 Support device 8 Coupling segment 9 Spring element 10 Deceleration element 11 Locking element 12 Holding device 13 Counter segment 14 Locking lug 15 Disassembly element 16 Recess 17 Final assembly position K Curve geometry A Swivel axis T Transport direction

Claims

1. Deceleration device for braking sheets transported in a transport direction, in particular corrugated cardboard sheets, comprising a) at least one support device, and b) at least one deceleration element which is arranged on the support device, characterized by the fact that c) the carrier device has a coupling segment which is designed and configured to engage positively with a counter-segment; d) wherein the coupling segment is designed and configured to pivot relative to the counter-segment in engagement with it, and for this purpose has at least one curved geometry in cross-section in the transport direction; and e) wherein the carrier device further has a spring element which is designed and configured to press against a contact surface of the counter-segment in a final assembly position.

2. Delay device according to the preceding claim, further showinga locking element, in particular arranged vertically or horizontally, which in the final assembly position is in positive engagement with the support device and increases the spring stiffness of the spring element, in particular preventing the spring element from springing back at least substantially.

3. Delay device according to the previous claim, characterized by the fact that The locking element is further designed and configured to additionally engage positively with the opposing segment in the final assembly position.

4. Delay device according to claim 1, further showing a locking element which is designed and configured to be in positive engagement with the carrier device and the counter segment in the final assembly position.

5. Delay device according to one of claims 2 to 4, characterized by the fact thatThe locking element is designed and configured to form a non-destructively detachable connection, in particular a screw connection, with the carrier device and / or the spring element and / or the counter segment.

6. Delay device according to one of the preceding claims, characterized by the fact that The spring element is designed and configured to create a positive-locking connection between the coupling segment and the counter-segment.

7. Delay device according to one of the preceding claims, characterized by the fact that the spring element has a locking lug which is specifically designed and configured to engage behind an undercut of the opposing segment in the final assembly position.

8. Delay device according to one of the preceding claims, characterized by the fact thatthe spring element has a disassembly element projecting from the carrier device, which is provided and arranged so that the end of the disassembly element facing away from the delay device can be pivoted from the final assembly position in order to release the spring element from the contact surface of the counter segment, in particular the locking mechanism with the undercut according to the previous claim.

9. Delay device according to one of the preceding claims, characterized by the fact that The curve geometry is designed and configured to be pivoted around a pivot axis in engagement with the opposing segment relative to it, the pivot axis being at least substantially in the plane of the transported arcs and perpendicular to the transport direction.

10. Holding device for coupling with a deceleration device, a) wherein the deceleration device is provided and configured for braking sheets, in particular corrugated cardboard sheets, transported in a transport direction, b) wherein the deceleration device is designed in particular according to one of the preceding claims, c) wherein the holding device has at least one counter segment which is arranged on the holding device, characterized by the fact thatd) the counter segment is provided and configured to engage in a positive-locking manner with a coupling segment, in particular the deceleration device; e) wherein the counter segment is provided and configured to be pivoted relative to the coupling segment in engagement with it, and for this purpose has at least one curved geometry in cross-section, cut in the transport direction; and f) at least one contact surface which is formed on the holding device and which is provided and configured to be subjected to a force by a spring element of the support device in a final assembly position.

11. Holding device according to the previous claim, further showinga locking element which, in the final assembly position, is in positive engagement with the holding device and is designed and configured to increase the spring stiffness of a spring element of the delay device, in particular to prevent at least a substantial amount of the spring element from springing back.

12. Holding device according to the previous claim, characterized by the fact that The locking element is further designed and configured to additionally engage positively with the coupling segment in the final assembly position.

13. Holding device according to one of claims 11 or 12, characterized by the fact that The holding device further comprises a recess for the positive locking of the locking element, which is arranged in particular vertically or horizontally.

14. Holding device according to claim 10, further showinga locking element which is designed and configured to be in positive engagement with the counter-segment and the support device in the final assembly position.

15. Holding device according to one of claims 11 to 14, characterized by the fact that The locking element is designed and configured to form a non-destructively detachable connection, in particular a screw connection, with the coupling segment and / or the counter segment.

16. Holding device according to one of claims 10 to 15, characterized by the fact that The holding device is provided and configured to create a positive locking connection between the counter segment and the spring element, in particular the spring element of the deceleration device.

17. Holding device according to one of claims 10 to 15, characterized by the fact thatThe holding device further has a recess which is specifically designed and equipped to engage with a locking lug of a spring element.

18. Holding device according to one of claims 10 to 17, characterized by the fact that The curve geometry is designed and configured to be pivoted around a pivot axis relative to the coupling segment in engagement with it, the pivot axis being at least substantially in the plane of the transported arcs and perpendicular to the transport direction.

19. Plant, in particular corrugated board plant, comprising a) a deceleration device for braking sheets transported in a transport direction, in particular according to one of claims 1 to 9; and b) a support device, in particular according to one of claims 10 to 18, c) wherein a coupling segment of the deceleration device and a counter segment of the support device have geometries corresponding to each other, which are provided and arranged for a sliding engagement with each other.

20. Assembly method for connecting a delay device, in particular according to one of claims 1 to 9, with a holding device, in particular according to one of claims 10 to 18, a system, in particular a corrugated board system according to claim 19, comprising the following steps: a) aligning the delay device and the holding device relative to each other in a pre-assembly position; b) pivoting the delay device and / or holding device relative to each other from the pre-assembly position to a final assembly position, wherein a coupling segment of the delay device engages, in particular by sliding, engagement with a counter-segment of the holding device; and c) pressing a spring element of the delay device against a contact surface of the counter-segment in the final assembly position to hold, in particular releasably, the delay device on the holding device in the final assembly position;and in particular d) locking, in particular releasable locking, of the delay device and the holding device by means of a locking element.; 21. Disassembly method for connecting a delay device, in particular according to one of claims 1 to 9, with a holding device, in particular according to one of claims 10 to 18, a system, in particular a corrugated board system according to claim 19, comprising the following steps: b) releasing a spring element of the delay device, which presses against a contact surface of the counter segment in the final assembly position to hold the delay device on the holding device in the final assembly position, in particular releasably;and c) pivoting the delay device and / or holding device relative to each other from the final assembly position to a disassembly position, wherein in the final assembly position the coupling segment of the delay device is engaged with a counter-segment of the holding device, in particular in a sliding manner, and in the disassembly position the delay device and holding device are no longer engaged, in particular in a sliding manner; in particular wherein the disassembly method further comprises the following step, which is to be carried out before step b): a) releasing, in particular non-destructively releasing, a locking element from the delay device and / or the holding device.;

Images