EP4263200B1 - Separating device and method for regionally separating a film web - Google Patents
Separating device and method for regionally separating a film web Download PDFInfo
- Publication number
- EP4263200B1 EP4263200B1 EP21819772.1A EP21819772A EP4263200B1 EP 4263200 B1 EP4263200 B1 EP 4263200B1 EP 21819772 A EP21819772 A EP 21819772A EP 4263200 B1 EP4263200 B1 EP 4263200B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- film web
- cutting
- working surface
- cylinder
- anvil plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000000034 method Methods 0.000 title claims description 29
- 238000005520 cutting process Methods 0.000 claims description 179
- 239000012530 fluid Substances 0.000 claims description 28
- 230000001154 acute effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 7
- 239000002699 waste material Substances 0.000 claims description 6
- 238000004080 punching Methods 0.000 claims description 4
- 238000000151 deposition Methods 0.000 claims 1
- 230000032258 transport Effects 0.000 description 99
- 238000005096 rolling process Methods 0.000 description 21
- 230000008569 process Effects 0.000 description 19
- 239000000463 material Substances 0.000 description 14
- 239000011888 foil Substances 0.000 description 10
- 238000012545 processing Methods 0.000 description 9
- 238000000926 separation method Methods 0.000 description 9
- 238000013461 design Methods 0.000 description 6
- 238000004049 embossing Methods 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 230000001105 regulatory effect Effects 0.000 description 5
- 238000011161 development Methods 0.000 description 4
- 230000018109 developmental process Effects 0.000 description 4
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- 230000008859 change Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000003908 quality control method Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000013519 translation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011143 downstream manufacturing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
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- 230000003993 interaction Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Images
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
- B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
- B65H35/08—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators from or with revolving, e.g. cylinder, cutters or perforators
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F1/00—Mechanical deformation without removing material, e.g. in combination with laminating
- B31F1/08—Creasing
- B31F1/10—Creasing by rotary tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B31—MAKING ARTICLES OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER; WORKING PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F—MECHANICAL WORKING OR DEFORMATION OF PAPER, CARDBOARD OR MATERIAL WORKED IN A MANNER ANALOGOUS TO PAPER
- B31F2201/00—Mechanical deformation of paper or cardboard without removing material
- B31F2201/07—Embossing
- B31F2201/0707—Embossing by tools working continuously
- B31F2201/0715—The tools being rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/0047—Machines or apparatus for embossing decorations or marks, e.g. embossing coins by rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B44—DECORATIVE ARTS
- B44B—MACHINES, APPARATUS OR TOOLS FOR ARTISTIC WORK, e.g. FOR SCULPTURING, GUILLOCHING, CARVING, BRANDING, INLAYING
- B44B5/00—Machines or apparatus for embossing decorations or marks, e.g. embossing coins
- B44B5/0095—Machines or apparatus for embossing decorations or marks, e.g. embossing coins using computer control means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/40—Type of handling process
- B65H2301/44—Moving, forwarding, guiding material
- B65H2301/449—Features of movement or transforming movement of handled material
- B65H2301/4493—Features of movement or transforming movement of handled material intermittent
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2301/00—Handling processes for sheets or webs
- B65H2301/50—Auxiliary process performed during handling process
- B65H2301/51—Modifying a characteristic of handled material
- B65H2301/515—Cutting handled material
- B65H2301/5153—Details of cutting means
- B65H2301/51532—Blade cutter, e.g. single blade cutter
- B65H2301/515323—Blade cutter, e.g. single blade cutter rotary
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
- B65H2402/31—Pivoting support means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2402/00—Constructional details of the handling apparatus
- B65H2402/30—Supports; Subassemblies; Mountings thereof
- B65H2402/32—Sliding support means
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2701/00—Handled material; Storage means
- B65H2701/10—Handled articles or webs
- B65H2701/17—Nature of material
- B65H2701/175—Plastic
- B65H2701/1752—Polymer film
Definitions
- the invention relates to a separating device and a method for separating a film web in certain areas.
- the EP 2 093 057 A1 discloses a method for disposal of used stamping foil webs when operating an embossing device.
- at least one stamping foil web is moved through an embossing gap with the aid of a foil transport device at varying web speeds and then fed to a disposal device.
- the stamping foil web is then pulled off from a last control device of the foil transport device by means of a pulling conveyor device downstream of the foil transport device, which generates a pulling force acting on the stamping foil web in the same pulling direction, regardless of the direction and magnitude of the web speed of the stamping foil web, and the stamping foil web is severed at predeterminable time intervals downstream of the pulling conveyor device outside an engagement area of the pulling conveyor device to produce severed stamping foil web sections.
- a method and a device for processing and finishing, in particular punching, cutting, embossing, grooving and sealing an endless web of material with recurring, different format lengths are known, wherein the device consists of at least one rotary tool device with which the web of material is processed, and web-guiding components and wherein at least one roller of the tool device has a larger circumference than the maximum format length of the web of material to be processed.
- the invention is based on the object of creating a separating device which makes it possible to separate even thin and thus unstable film webs.
- the separating device comprises an anvil plate which has a working surface for laying out an end region of a film web, a conveyor device which is mounted along a conveyor axis so as to be linearly movable relative to the anvil plate and which is designed to carry out a laying out movement for the end region of the film web which is aligned parallel to the working surface, and a separating device which has at least one cutting edge for carrying out a separating process for an end region of the film web which is received between the cutting edge and the working surface, wherein the conveyor device and the separating device are designed to alternately carry out the laying out movement and the separating process for the end region of the film web.
- the task of the conveyor is to transport a film web, which can be taken from a storage magazine or unwound from a supply roll, in such a way that to be laid out on the working surface of the anvil plate so that in a subsequent work step a separation process for an end region of the film web can be carried out with the aid of the separation device. It is provided that a front edge of the end region of the film web laid out on the working surface by the conveyor device comes to lie at a defined position along the extension of the working surface in the direction of the conveyor axis. It is particularly preferred that this position is always constant for a given separation device.
- a length of the film web can be in a range from several meters to several 100 meters, while a width of the film web is in a range between a few centimeters and several decimetres and that a thickness of the film web is in a range from fractions of a millimetre to several millimetres.
- the film web can optionally be made from a single material, in particular a plastic material, or as a multi-layer arrangement of films, which are in particular made from different materials such as plastic or metal.
- the film web By alternately carrying out the laying-out movement and the separating process for the end region of the film web, as carried out by the conveyor device and the separating device, the film web performs a step-by-step movement along the conveyor axis, whereby separated sections of the film web can be picked up while the film web is at rest, which is particularly advantageous for handling films of low thickness.
- anvil plate is fixed to a machine frame and that a relative movement of the conveying device and the separating device is carried out with respect to the anvil plate in order to carry out the conveying process and the separating process.
- the conveyor device and the separating device are fixedly mounted on the machine frame and that the anvil plate carries out a linear, intermittent and cyclically recurring relative movement parallel to the conveyor axis with respect to the conveyor device and the separating device.
- a storage magazine assigned to the anvil plate for a sheet-like film web or a supply roll assigned to the anvil plate with a wound-up film web is moved with the anvil plate.
- the conveying device and/or the separating device in addition to a linear relative movement along the conveying axis relative to the anvil plate, also have at least one further degree of freedom of movement, for example a rotational degree of freedom of movement or a linear degree of freedom of movement aligned transversely to the conveying axis.
- the conveyor device in a first conveyor position assumes a first, minimum distance from a front edge of the anvil plate aligned transversely to the conveyor axis and in a second conveyor position assumes a second, maximum distance from the front edge and that the separating device has a third, maximum distance from the front edge in a rest position and a fourth, minimum working distance from the front edge in a working position.
- the second distance is selected to be greater than the fourth distance so that an overlap of a working area of the conveyor device and a working area of the separating device is guaranteed.
- a difference between the first, minimum distance for the conveyor device from the front edge of the anvil plate and the second, maximum distance describes the maximum working stroke that the conveyor device can perform along the conveyor axis.
- this maximum working stroke can be fully or only partially utilized for the movement of the conveyor device.
- a difference between the third, maximum distance for the separating device from the front edge of the anvil plate and the fourth, minimum distance describes the maximum working stroke that the separating device can perform along the conveyor axis.
- the extent to which this maximum working stroke is fully or only partially utilized depends on the design of the at least one cutting edge of the separating device. Since the second distance that the conveyor device can take from the front edge of the anvil plate is selected to be greater than the fourth distance that the separating device can take from the front edge of the anvil plate, it is ensured that the separating device can always process an end region of the film web laid out by the conveyor device on the working surface of the anvil plate. It is particularly preferred that movements of the conveyor device and the separating device in the same direction take place synchronously along the conveyor axis in order to ensure that the end region of the film web is processed as quickly as possible.
- the conveyor device has a transport cylinder with a transport cylinder axis aligned transversely to the conveyor axis and parallel to the work surface, which is designed to carry out the conveying process with a linear movement along the conveyor axis and/or with a rotational movement about the transport cylinder axis.
- the task of the transport cylinder is to temporarily hold the end region of the film web and to exert a tensile force on the film web directed in the direction of the conveyor axis in order to pull the film web out of a storage magazine or unroll it from a supply roll.
- the transport cylinder can be equipped with a clamping device, in particular with a gripper bar or a plurality of grippers, for fixing the end region of the film web.
- a clamping device in particular with a gripper bar or a plurality of grippers, for fixing the end region of the film web.
- the transport cylinder is assigned a drive device which is designed to initiate a linear movement parallel to the conveyor axis and to initiate a rotational movement about the transport cylinder axis.
- a drive device can be implemented, for example, as an arrangement of a hydraulic cylinder for the linear movement and a gear train for the rotational movement of the transport cylinder.
- individually controllable drives in particular electric servo drives, are provided both for providing the linear movement and for providing the rotational movement of the transport cylinder, which can be controlled by a control and regulating device depending on the desired working stroke and depending on the desired rotational movement for the transport cylinder.
- the separating device has a cutting cylinder with a cutting cylinder axis aligned transversely to the conveyor axis and parallel to the working surface, which is designed to carry out the separating process with a superposition of a linear movement along the conveyor axis and a rotational movement about the cutting cylinder axis, wherein the at least one cutting edge is attached to an outer surface of the cutting cylinder.
- the task of the cutting cylinder is to either completely separate the end region of the film web from the rest of the film web or to cut out sections from the film web.
- the cutting cylinder has at least one cutting edge, but can also be provided with a plurality of differently shaped cutting edges in order to be able to cut complex geometries from the end region of the film web and/or to cut them out of the end region of the film web.
- the cutting cylinder can also be equipped with an embossing tool and/or a creasing tool.
- the cutting cylinder is the only format part of the separating device, i.e. the only component of the separating device that can be replaced if the component that is to be cut off from the end region of the film web or cut out of the end region of the film web is changed.
- the cutting cylinder can have a dimensionally stable carrier cylinder equipped with permanent magnets and/or electromagnets and cutting plates and/or creasing plates and/or embossing plates applied to it, which enable a quick format change.
- a positioning device in particular in the form of a dowel pin, is provided on the carrier cylinder in order to ensure exact positioning of the replaceable cutting plates and/or creasing plates and/or embossing plates.
- the cutting cylinder is assigned a drive device which is designed to initiate a linear movement parallel to the conveyor axis and to initiate a rotational movement around the cutting cylinder axis.
- a drive device can be implemented, for example, as an arrangement of a hydraulic cylinder for the linear movement and a gear train for the rotational movement of the cutting cylinder.
- individually controllable drives in particular electric servo drives, are provided both for providing the linear movement and for providing the rotational movement of the cutting cylinder, which can be controlled by a control and regulating device depending on the desired working stroke and depending on the desired rotational movement for the cutting cylinder.
- the working surface has a flat, in particular rectangular, support area for the end area of the film web as well as bearing strips on both sides adjacent to the support area and extending along the conveyor axis and protruding from the support area, and that the cutting cylinder rests on the bearing strips with an outer surface at least in part when moving between the rest position and the working position.
- the edges of the working surface each have a longest edge parallel to the Bearing strips aligned with the conveyor axis are used for a rolling movement of the cutting cylinder during the relative movement of the cutting cylinder with respect to the anvil plate.
- the bearing strips Due to the geometry of the bearing strips, the upper sides of which are aligned parallel to one another and at the first acute angle to the work surface, in interaction with the conical sections formed on the outer peripheral surface of the cutting cylinder, flat supports are created between the cutting cylinder and the bearing strips. It is preferably provided that the extension of the conical sections in the direction of the cutting cylinder axis is greater than the extension of the upper sides of the bearing strips in the direction of the cutting cylinder axis. Depending on a lateral positioning of the cutting cylinder with respect to the bearing strips, a distance of the cutting cylinder axis from the work surface can thus be adjusted.
- a suspension of the cutting cylinder enables a change in position for the cutting cylinder along the cutting cylinder axis in order to enable the resulting distance adjustment between the cutting cylinder axis and the work surface.
- the conical sections of the cutting cylinder can also be designed as replaceable races, for example to ensure that the cutting cylinder can be used again after the races have been replaced in the event of wear.
- the bearing strips are designed to be exchangeable and that the cutting cylinder is designed to be circularly cylindrical in those areas of its outer circumferential surface that are intended to rest on the top of the bearing strips. Accordingly, an adjustment of a distance between the cutting cylinder axis and the working surface is made possible by exchanging of the bearing strips without the need to provide a lateral adjustment option for the cutting cylinder.
- a sensor is assigned to the transport cylinder, which is designed to detect a front edge of the end region of the film web, in particular in the first conveying position, and/or that a sensor is assigned to the cutting cylinder for detecting a position of the cutting edge, in particular in the rest position, and/or that a sensor for detecting properties of the film web is arranged in the region of the front edge of the anvil plate.
- the sensor assigned to the transport cylinder in conjunction with a suitable evaluation device for evaluating the sensor signal, therefore has the task of making it possible to determine whether the length of the end region of the film web wound onto the transport cylinder is sufficient. If this is not the case, measures must be taken, in particular by rotating the transport cylinder, to correct the length of the end region of the film web wound onto the transport cylinder to a predetermined value before carrying out the laying-out movement, which is then carried out by the transport cylinder.
- the sensor assigned to the transport cylinder can be arranged in a fixed position on the machine frame in order to enable the detection of the front edge of the end region of the film web in the first conveying position. Alternatively, it can be provided that the sensor is connected to the transport cylinder in such a way that it is carried along during a linear movement of the transport cylinder.
- the sensor assigned to the cutting cylinder has, in conjunction with a suitable evaluation device, to evaluate the The purpose of the sensor signal is to provide information about whether the at least one cutting edge of the cutting cylinder is in the correct position before the cutting process is carried out. If this is not the case, the correct position of the at least one cutting edge can be set, for example, by rotating the cutting cylinder.
- the sensor assigned to the cutting cylinder can be arranged in a fixed location on the machine frame in order to detect the position of the at least one cutting edge in the rest position of the transport cylinder. Alternatively, it can be provided that the sensor is arranged on a drive device for the cutting cylinder and can detect the position of the at least one cutting edge during a relative movement of the cutting cylinder with respect to the anvil plate.
- a sensor In the area of the front edge of the anvil plate 6 and thus in an area between a storage magazine for a sheet-like film web or a supply roll associated with the anvil plate with a wound-up film web and the anvil plate, a sensor can be arranged with which properties of the film web are recorded. For example, this sensor can be used to detect defects in the film web.
- At least one outlet opening of a fluid channel is formed on the working surface and/or on an outer surface of the conveying device and/or on an outer surface of the separating device, which is designed to provide a negative pressure or a pressurized fluid. It is advantageous if the working surface is provided at least in regions with a plurality of outlet openings of the at least one fluid channel, in particular arranged in a matrix with a uniform division. is, for example, in order to be able to ensure reliable adhesion of the end region of the film web by applying negative pressure to the mouth openings of the fluid channel after the end region of the film web has been laid out.
- the at least one fluid channel is connected to a negative pressure supply and/or a fluid source, in particular a compressed air source.
- a valve device arranged between the negative pressure supply or the fluid source and the fluid channel can influence a negative pressure or positive pressure at the respective mouth openings in the work surface.
- a plurality of separately formed fluid channels, each with associated mouth openings are provided in the anvil plate in order to be able to supply different regions of the work surface with negative pressure or compressed air in different ways.
- the mouth openings of the fluid channel can, for example, be formed by bores that are aligned transversely to the work surface of the anvil plate. If necessary, it is provided to realize at least some of the mouth openings by a porous design of a partial area of the anvil plate.
- a plate made of a metal sintered material which is inserted into a suitable recess in the anvil plate and is connected to one or more fluid channels.
- the bearings on the outer surface of the conveyor which is in particular the transport cylinder or a linearly movable, adjustable roller parallel to the working surface
- the orifices of the at least one fluid channel provided on the conveyor device which can be a transport bar, are used in particular for sucking in the end region of the film web in order to be able to exert tensile forces on the film webs, for example.
- the at least one fluid channel of the conveyor device is connected to a vacuum supply and/or a compressed air source with the interposition of a valve device.
- the orifices of the at least one fluid channel are arranged over at least a partial region of the outer surface, in particular over the entire width of the conveyor device, or over the entire outer surface of the conveyor device.
- the mouth openings of the at least one fluid channel provided on the outer surface of the separating device which can in particular be a cutting cylinder, are used in particular for sucking in sections or cutouts of the film web during and/or after the separating process has been carried out and thus enable, for example, a controlled removal of cut-out areas of the film web or cut-off waste pieces of the film web.
- the at least one fluid channel of the separating device is connected to a vacuum supply and/or a compressed air source with the interposition of a valve device.
- the at least one cutting edge of the separating device and the working surface of the anvil plate are designed to carry out a separating process for the end region of the film web from the group: cross-cutting of the film web, cutting out film sections from the film web (form cutting), crush cutting, stroke punching, scissor cutting.
- the separating device is designed as a lifting punch for carrying out a lifting punch movement aligned transversely to the working surface of the anvil plate and is mounted to the anvil plate so as to be linearly movable between a rest position with a distance that is greater than an extension of the transport device transversely to the working surface and a working position with a vanishing distance to the working surface.
- a gripper for removing good parts to a defined storage position and/or for removing waste is arranged on the anvil plate in a relatively movable manner.
- the task of the gripper is in particular to transport the good parts cut out of the end area of the film web or the good parts cut off from the end area of the film web in a way that can avoid undesirable deformation even when the good parts are very thin.
- the gripper is designed to either place the good parts on a stack of good parts in a defined way, in particular as evenly as possible and with a predeterminable orientation, or to feed them directly to a subsequent processing process for the good parts.
- separating devices are spatially arranged in such a way that the respective grippers feed differently configured good parts to a centrally arranged processing device, which can be a film welding device, for example, so that the good parts provided by the respective separating device can be processed immediately.
- a sensor device in particular a camera with image processing, is assigned to the gripper in order to carry out a quality control for the To be able to carry out the inspection of parts cut out of the film web or cut off from the film web and to qualify these either as good parts or as rejects and to initiate a corresponding gripper movement.
- the object of the invention is achieved by a method for separating a film web in sections with the following steps: detecting an end region of a film web that is laid out on a working surface of an anvil plate with a transport cylinder, carrying out a first rolling movement for the end region of the film web onto the transport cylinder during a first linear retraction movement of the transport cylinder, detecting a front edge of the end region of the film web arranged on the transport cylinder with a sensor and controlling a second rolling movement for the transport cylinder at a first conveying position at which the transport cylinder has a first, minimum distance from a first end region of the anvil plate, carrying out a combination of a rolling movement and a second linear feed movement for the transport cylinder along the working surface of the anvil plate for laying the end region of the film web on the working surface and carrying out a second linear retraction movement of the transport cylinder into the first conveying position, carrying out a combination of a rolling movement and a third linear feed movement for a cutting cylinder along the working
- the film web is either taken from a storage magazine or unwound from a supply roll, whereby the task of the transport cylinder is to lay out the end region of the film web on the working surface of the anvil plate in such a way that a sufficient length of the film web is provided for the subsequent cutting process, alternating with the execution of a cutting process carried out with the cutting cylinder.
- an end region of the film web is laid out on the working surface of the anvil plate at least in such a way that the end region can be grasped by the transport cylinder.
- at least one fluid channel in the transport cylinder which has at least one mouth opening opening out on the outer surface of the transport cylinder, is subjected to negative pressure by controlling a valve device that is connected downstream of a negative pressure supply, so that at least a partial region of the film web is sucked onto the outer surface of the transport cylinder.
- a gripping bar formed on the transport cylinder can also be provided for grasping the end region of the film web.
- a first rolling movement for the end area of the film web onto the transport cylinder takes place during a linear movement of the transport cylinder in Towards a front edge of the anvil plate.
- This first rolling-up movement is carried out as a superposition of a rotation of the transport cylinder about the transport cylinder axis and a translation of the transport cylinder parallel to the working surface.
- the first rolling-up movement is carried out without slippage in relation to the working surface of the anvil plate, with exactly that length of the end region of the film web being wound onto the transport cylinder that can be taken up by the rolling movement of the transport cylinder on the working surface of the anvil plate, without the end region of the film web carrying out a linear relative movement in relation to the working surface.
- the first rolling-up movement for the end region of the film web in relation to the working surface of the anvil plate already takes place with slippage.
- the rotational movement of the transport cylinder which is superimposed on the linear movement of the transport cylinder, is selected such that the end region of the film web performs a linear relative movement with respect to the working surface, whereby tensile forces act on the film web, which leads, for example, to an unwinding process for the film web wound on a supply roll.
- the sensor assigned to the transport cylinder can be used to detect whether a front edge of the end region of the film web is at a predetermined position or whether a further winding movement, also referred to as a second winding movement, is required. If the detection of the front edge of the end region of the film web shows that the front edge is already in the desired position, a target value and an actual value for the control of the second winding movement match, so that practically no second rolling movement is carried out. If, however, there is a deviation between the specified position of the front edge and an actual position of the front edge, the second rolling movement is carried out with feedback from an updated sensor signal until the deviation disappears.
- the end region of the film web is released from the transport cylinder, for example by switching off a vacuum supply for the fluid channel and the associated mouth openings or, if necessary, by providing compressed air at the mouth openings in order to assist in blowing off the end region and thus removing the end region of the film web from the transport cylinder.
- the transport cylinder is then returned to the first functional position to free up the work surface for the separation process to be carried out.
- a negative pressure is applied to at least one of the anvil plates Fluid channel is carried out in order to ensure that the end region of the film web is at least partially attached to the working surface and thus to stabilize it for the execution of the separation process.
- the separation process for the end region of the film web is carried out with the aid of the cutting cylinder, which is transferred from a rest position to a working position with a non-slip rolling movement that includes a superposition of a rotational movement of the cutting cylinder around a cutting cylinder axis and a linear movement of the cutting cylinder along the conveyor axis.
- at least one cutting edge of the cutting cylinder comes into engagement with the end region of the film web and carries out the desired separation process, with which a section of the end region of the film web or a cutout from the end region of the film web or a combination thereof can be produced.
- the cutting cylinder is either first returned from the working position to the rest position without slipping before the produced part is transported away with a gripping device, or the produced part is transported away with a gripping device before the cutting cylinder is returned to the rest position.
- the gripping device comprises a sensor, in particular a camera with image processing, with the aid of which a quality control can be carried out for the produced part and only those parts are fed to downstream processing which can also be qualified as good parts.
- At least one fluid channel in the cutting cylinder is subjected to a negative pressure in order to transport away the produced part and/or any waste when carrying out the return movement.
- a separating device for separating a film web in certain areas which has an anvil plate with a working surface for laying out a film web and which has a conveyor device for conveying the film web along a conveyor axis aligned parallel to the working surface and which has a cutting cylinder which has at least one cutting edge for carrying out a separating process for the film web received between the cutting edge and the working surface, wherein bearing strips are arranged on the edge of the working surface, each with a longest edge aligned parallel to the conveyor axis, which have upper sides aligned parallel to one another and at a first acute angle to the working surface, and wherein the cutting cylinder has two conical sections on an outer peripheral surface which are aligned at a second acute angle to a cutting cylinder axis and which are designed to rest on the upper sides, wherein An adjustment device for positioning the cutting cylinder along the cutting cylinder axis is formed between the anvil plate and the cutting cylinder.
- Such a separating device enables a distance adjustment between the working surface and the at least one cutting edge of the cutting cylinder by moving the cutting cylinder along the cutting cylinder axis, since this causes a superimposed linear movement for the cutting cylinder due to the wedge effect of the upper sides of the bearing strips in conjunction with the conical sections, which influences a distance between the cutting cylinder axis and the working surface.
- Such a design of the bearing strips and the cutting cylinder can also be provided for the separating device described at the beginning and claimed in claim 1 and the associated subclaims.
- the separating device 1 which is only shown schematically and not to scale, is used to process a film web 2, which is cut into individual, purely exemplary rectangular cutouts, as shown in the Figure 3 shown schematically.
- the separating device 1 comprises a material roll 4 on which the film web 2 is wound, a feed device 5 which is designed to support an unwinding movement for the film web 2 from the material roll 4, an anvil plate 6 for supporting the film web 2, a conveyor device 7 and a separating device 8.
- the material roll 4, the feed device 5 and the anvil plate 6 are arranged purely by way of example on a common machine frame (not shown).
- the conveyor device 7 and the separating device 8 are arranged on the machine frame in a manner also not shown so that they can move relative to the anvil plate 6, whereby drives (not shown in detail), for example hydraulic cylinders, pneumatic cylinders, hydraulic motors, pneumatic motors, electric servo motors and combinations thereof, can be used for a relative movement of the conveyor device 7 and the separating device 8 relative to the anvil plate 6.
- the material roll 4 is designed to provide the film web 2, wherein a length of the film web 2 wound onto the material roll 4 is many times greater than a length of the anvil plate 6, so that a plurality of cutouts 3 can be cut out of the film web 2 before a change of the material roll 4 is necessary.
- the feed device 5 arranged adjacent to the material selection 4 comprises, purely by way of example, a side edge control 9, a first deflection roller 10, a second deflection roller 11 and a pair of conveyor rollers 12.
- the task of the side edge control 9, which scans a lateral edge of the film web 2 during a conveying movement of the film web 2 by means of a sensor device (not shown in detail), is to ensure a central arrangement of the film web 2 on the first deflection roller 10.
- the side edge control 9 can influence the alignment of the film web 2 with respect to the first deflection roller 10.
- the film web 2 After passing the first deflection roller 10 and the second deflection roller 11, the film web 2 is guided between two conveyor rollers 15, 16 of the conveyor roller pair 12, wherein at least one of the two conveyor rollers 15, 16 can be driven in order to support a movement of the film web 2 in the schematically drawn conveying direction 17, which can be viewed as a direction vector of a conveying axis.
- a discontinuous conveying is provided for the film web 2, since the processing of the film web 2 on the anvil plate 6 is also carried out discontinuously.
- a first sensor 40 is arranged above the film web 2, which is used to scan the film web 2 and can detect properties of the film web such as a film type, preferably without contact.
- An electrical sensor signal from the first sensor 40 is provided to a control and regulating device (not shown) and processed there. For example, it can be provided to adjust the conveying movements of the feed device 5 based on the sensor signal from the first sensor 40.
- the anvil plate 6 has a purely exemplary flat surface which is perpendicular to the plane of the Figure 1 aligned work surface on which the film web 2 is laid out for carrying out the processing steps described in more detail below.
- the anvil plate 6 comprises a dimensionally stable, for example designed as a plane-parallel plate, Carrier plate 20, which can be connected to the machine frame (not shown) in a manner not shown in detail.
- a work plate 21, also designed purely as a plane-parallel plate, is attached to the carrier plate 20 and, according to the detailed illustration in Figure 2, is partially penetrated by fluid channels 22.
- Mouth openings 23 of the fluid channels 22 open out at the work surface 19, whereby when the fluid channels 22 are subjected to negative pressure via a channel system (not shown) formed in the work plate 21, which is connected to a negative pressure supply (not shown) arranged away from the anvil plate 6, negative pressure adhesion of the film web 2 to the work surface 19 in the region of the fluid channels 22 can be brought about.
- the work surface 19 is provided on both sides with bearing strips 24 which protrude above the work surface 19 and whose longest edge 25 is aligned parallel to a longest edge of the anvil plate 6.
- the bearing strips 24 can have a rectangular cross-section or a cross-section in the form of a right-angled trapezoid with an upper side sloping in the direction of the respective opposite bearing strips 24 in a cross-sectional plane aligned transversely to the longest edge 25.
- the task of the bearing strips 24 is in particular to form a support surface for the separating device 8 described in more detail below with their upper side 27 facing away from the work surface 19.
- the conveyor device 7 is designed purely as an example as a transport cylinder 30.
- a transport cylinder axis 31 extends transversely to the plane of the Figures 1 and 2 and 4 to 9 and simultaneously forms the rotational symmetry axis for the circular cylindrical profiled transport cylinder 30.
- the transport cylinder 30 is provided with a Figures 1 and 4 to 9, which is only schematically shown and extends purely by way of example over an angle of 90 degrees over a circumferential surface 32.
- the intake area 33 is formed by a plurality of purely schematically shown Figure 2 formed by the bores 34 shown in the detailed illustration, wherein the bores 34 are connected to vacuum channels 35 aligned parallel to the transport cylinder axis 31.
- the vacuum channels 35 can be connected in a fluidic manner to a vacuum supply (also not shown) via a rotary union (not shown), so that a vacuum can be provided at the mouth openings 36 of the bores 34 in order to suck in the film web 2.
- the transport cylinder 30 can be moved in various ways relative to the anvil plate 6.
- a drive device (not shown) for the transport cylinder 30 comprises, for example, a combination of a linear drive for a linear movement of the transport cylinder in the conveying direction 17 and against the conveying direction 17 and a rotary drive for a rotation of the transport cylinder 30 about the transport cylinder axis 31.
- the transport cylinder 30 can carry out a purely linear movement, a purely rotary movement or a superposition of a linear movement and a rotary movement.
- the transport cylinder 30 can be driven from the Figure 2 shown first conveying position, in which there is a first, minimum distance 37 of the transport cylinder 30 to the front edge 18 of the anvil plate 6, into a second conveying position, in which there is a second, maximum distance of the transport cylinder 30 to the front edge 18 of the anvil plate 6.
- the transport cylinder 30 can optionally be rotated or not.
- the transport cylinder 30 can also perform an exclusively rotational movement in any position between the first conveying position and the second conveying position, but in particular in the first conveying position.
- the separating device 8 is designed purely as an example as a cutting cylinder 50, which is equipped with a first cutting edge 52 and a second cutting edge 53 on a circular cylindrical outer surface 51.
- the first cutting edge 52 extends over an entire width of the cutting cylinder 50 and serves to carry out a cross-section 54 on the film web 2, as shown in Figure 3 shown schematically.
- the second cutting edge 53 is a form cutting edge and serves to produce the cutouts 3 in the film web 2, as shown in the Figure 3 is shown schematically.
- the cutting cylinder 50 is moved by a drive device (not shown) between a rest position in which the cutting cylinder 50 has a third, maximum distance 55 from the front edge 18 of the anvil plate 6, and a working position in which the cutting cylinder 50 has a fourth, minimum distance 56 from the front edge 18.
- the drive device is designed in such a way that there is always a forced coupling between a rotational movement about a cutting cylinder axis 57 and a translational movement parallel to the conveying direction 17 for the cutting cylinder 50. It is preferably provided that the drive device and the cutting cylinder 50 are coordinated with one another in such a way that the cutting cylinder 50 with its outer surface 51 performs a slip-free rolling movement on the bearing strips 24.
- the transport cylinder 30 is positioned by superimposing a rotational movement and a translational movement such that the suction area 33 is arranged above the end area 14.
- the transport cylinder 30 is arranged such that the suction area 33 ends with a front edge 44 of the end area 14 of the film web 2.
- the vacuum supply can be activated so that a vacuum is provided at the mouth openings 36 of the bores 34, with which a flat suction of the end area 14 onto the peripheral surface 32 of the transport cylinder 30 takes place.
- a rolling movement of the transport cylinder 30 onto the end region 14 of the film web 2 takes place with a counterclockwise direction of rotation in order to start a winding process for the end region 14 onto the transport cylinder 30.
- the rolling movement for the transport cylinder 30 is caused by a coordinated superimposition movement between a rotation and a translation for the transport cylinder 30 by the drive device, wherein a distance of the transport cylinder 30 to the front edge 18 is reduced.
- the transport cylinder 30 has reached the first conveying position and is at the first, minimum distance 37 from the front edge 18.
- the peripheral surface 32 of the transport cylinder 30 is scanned by a second sensor 41, which is attached to the machine frame of the separating device 1 in a manner not shown in detail and which is designed to detect the front edge 44 of the end region 14 of the film web 2.
- a corresponding sensor signal is provided to the control and regulating device (not shown), which controls the drive device (not shown) for the transport cylinder 30 in such a way that a pure rotational movement of the transport cylinder 30 in the direction of the arrow according to the illustration of the Figure 6 , which is oriented counterclockwise purely by way of example, is carried out in order to continue the winding process for the film web onto the transport cylinder 30.
- the control and regulating device not shown
- a pure rolling movement of the transport cylinder 30 takes place to lay out the film web 2 on the working surface of the anvil plate (not shown).
- This rolling movement is a synchronized superposition of a rotational movement and a translational movement of the transport cylinder 30 by the drive device (not shown).
- a fifth step as described in the Figure 8 As shown, the cutting cylinder 50 is moved from the rest position to the Working position, whereby the distance of the cutting cylinder 50 from the front edge 18 is reduced.
- the drive device (not shown) for the cutting cylinder 50 causes a slip-free rolling movement of the outer surface 51 of the cutting cylinder 50 on the bearing strips 24, whereby the cutting edges 52 and 53 bring about the desired separating processes for the end region 14 of the film web 2.
- a third sensor 42 can be used to check whether the cutting edge 53 is arranged in the correct rotational position.
- the third sensor 42 should provide a sensor signal to the control and regulating device (not shown) from which it can be seen that the cutting edge 53 is not correctly positioned, for example, a shutdown of the separating device 1 and the output of a warning message can be provided.
- a suitable design of the drive device for the cutting cylinder 50 an adjustment process can also be provided by exclusively rotating the cutting cylinder 50 until the cutting edge 53 assumes the desired position.
- a gripper 60 which can be designed in particular as a vacuum gripper and which can deposit the section 3 in a suitable magazine away from the separating device 1.
- the gripper 60 can be equipped with a fourth sensor 43, which is designed to carry out a quality control for the section 3 and to qualify it as a good part or a bad part using predetermined criteria.
- An evaluation of a sensor signal from the third sensor 42 can be carried out, for example, in an evaluation device (not shown), which subsequently provides a control signal for the gripper 60 in order to either feed the cutout 3 to a subsequent processing step or to dispose of the cutout 3 as scrap.
- the 63 can have one or more fluid channels that are connected to a common vacuum supply and can be controlled by a common valve device or by separate valve devices. This makes it possible, for example, to selectively grip and/or deposit or throw off the cutout 3 and a waste grid with the gripper 60. Furthermore, a further gripper (not shown) can be provided that transports a remaining piece of the end region 14 of the film web 2, which is also referred to as a waste grid, away from the separating device 1 after the cutout 3 has been removed.
- the Indian Figure 10 The cutting cylinder 50 shown, like the anvil plate 6, is shown only schematically and in no way authoritatively.
- the first cutting edge 52 arranged on the outer surface 51 of the cutting cylinder 50 extends almost over the entire width of the cutting cylinder 50 and is purely exemplary in cutting engagement with the end region 14 of the film web 2.
- the second cutting edge 53 is designed purely by way of example as a closed, circumferential cutting edge for cutting out a rectangular section 3 from the film web 2.
- bearing rings 58 in the shape of conical sections are arranged on the outer surface 51 of the cutting cylinder 50, the conical surfaces 59 of which are aligned at an acute angle 64 to the working surface 19.
- the bearing rings 58 carry out a slip-free rolling movement on the bearing strips 24, which are arranged on both sides at the edge of the working surface 19. and which have a profile in the form of a right-angled trapezoid.
- the upper sides 27 of the bearing strips 24 assume the same acute angle 64 to the working surface 19 as the conical surfaces 59 of the bearing rings 58. Accordingly, a distance 63 between the cutting cylinder axis 57 and the working surface 19 can be set by a linear displacement of the cutting cylinder 50 along the cutting cylinder axis 57.
- depressions are arranged in the respective surfaces, which are designed for temporarily receiving components that protrude from the film web, such as electronic components integrated into the film web, or the depressions in the anvil plate 6 are arranged such that a cutting edge is formed in the anvil plate 6 itself, which acts as a counter cutting edge to at least one of the cutting edges 52, 53 on the cutting cylinder 50.
Landscapes
- Perforating, Stamping-Out Or Severing By Means Other Than Cutting (AREA)
- Details Of Cutting Devices (AREA)
Description
Die Erfindung betrifft eine Trennvorrichtung sowie ein Verfahren zum bereichsweisen Trennen einer Folienbahn.The invention relates to a separating device and a method for separating a film web in certain areas.
Die
Aus der
Der Erfindung liegt die Aufgabe zugrunde, eine Trennvorrichtung zu schaffen, die es ermöglicht, auch dünne und damit instabile Folienbahnen trennen.The invention is based on the object of creating a separating device which makes it possible to separate even thin and thus unstable film webs.
Diese Aufgabe wird mit einer Trennvorrichtung zum bereichsweisen Trennen einer Folienbahn gelöst. Hierbei umfasst die Trennvorrichtung eine Ambossplatte, die eine Arbeitsoberfläche zum Auslegen eines Endbereichs einer Folienbahn aufweist, eine Fördereinrichtung, die längs einer Förderachse linearbeweglich zur Ambossplatte gelagert ist und die zur Durchführung einer parallel zur Arbeitsoberfläche ausgerichteten Auslegebewegung für den Endbereich der Folienbahn ausgebildet ist, sowie eine Trenneinrichtung, die wenigstens eine Schneide zur Durchführung eines Trennvorgangs für einen zwischen der Schneide und der Arbeitsoberfläche aufgenommenen Endbereich der Folienbahn aufweist, wobei die Fördereinrichtung und die Trenneinrichtung für eine wechselweise Durchführung der Auslegebewegung und des Trennvorgangs für den Endbereich der Folienbahn ausgebildet sind.This object is achieved with a separating device for separating a film web in sections. The separating device comprises an anvil plate which has a working surface for laying out an end region of a film web, a conveyor device which is mounted along a conveyor axis so as to be linearly movable relative to the anvil plate and which is designed to carry out a laying out movement for the end region of the film web which is aligned parallel to the working surface, and a separating device which has at least one cutting edge for carrying out a separating process for an end region of the film web which is received between the cutting edge and the working surface, wherein the conveyor device and the separating device are designed to alternately carry out the laying out movement and the separating process for the end region of the film web.
Die Aufgabe der Fördereinrichtung besteht darin, eine Folienbahn, die aus einem Ablagemagazin entnommen werden kann oder die von einer Vorratsrolle abgewickelt werden kann, derart auf der Arbeitsoberfläche der Ambossplatte auszulegen, dass in einem nachfolgenden Arbeitsschritt ein Trennvorgang für einen Endbereich der Folienbahn mit Hilfe der Trenneinrichtung durchgeführt werden kann. Dabei ist vorgesehen, dass eine Vorderkante des von der Fördereinrichtung auf der Arbeitsoberfläche ausgelegten Endbereichs der Folienbahn an einer definierten Position längs der Erstreckung der Arbeitsoberfläche in Richtung der Förderachse zu liegen kommt. Besonders bevorzugt ist vorgesehen, dass diese Position für eine gegebene Trenneinrichtung stets konstant ist.The task of the conveyor is to transport a film web, which can be taken from a storage magazine or unwound from a supply roll, in such a way that to be laid out on the working surface of the anvil plate so that in a subsequent work step a separation process for an end region of the film web can be carried out with the aid of the separation device. It is provided that a front edge of the end region of the film web laid out on the working surface by the conveyor device comes to lie at a defined position along the extension of the working surface in the direction of the conveyor axis. It is particularly preferred that this position is always constant for a given separation device.
Beispielhaft ist vorgesehen, dass eine Länge der Folienbahn in einem Bereich von mehreren Metern bis mehreren 100 Metern betragen kann, während eine Breite der Folienbahn in einem Bereich zwischen wenigen Zentimetern und mehreren Dezimetern beträgt und dass eine Dicke der Folienbahn in einem Bereich von Bruchteilen eines Millimeter bis zu mehreren Millimetern beträgt. Die Folienbahn kann wahlweise aus einem einzigen Werkstoff, insbesondere einem Kunststoffmaterial, oder als mehrlagige Anordnung von Folien, die insbesondere aus unterschiedlichen Materialien wie Kunststoff oder Metall gebildet, hergestellt sein.For example, it is provided that a length of the film web can be in a range from several meters to several 100 meters, while a width of the film web is in a range between a few centimeters and several decimetres and that a thickness of the film web is in a range from fractions of a millimetre to several millimetres. The film web can optionally be made from a single material, in particular a plastic material, or as a multi-layer arrangement of films, which are in particular made from different materials such as plastic or metal.
Durch die wechselweise Durchführung der Auslegebewegung und des Trennvorgangs für den Endbereich der Folienbahn, wie die von der Fördereinrichtung und der Trenneinrichtung vorgenommen werden, vollzieht die Folienbahn eine schrittweise Bewegung längs der Förderachse, womit eine Aufnehmen von abgetrennten Abschnitten der Folienbahn bei ruhender Folienbahn vorgenommen werden kann, was insbesondere für die Handhabung von Folien mit geringer Dicke von Vorteil ist.By alternately carrying out the laying-out movement and the separating process for the end region of the film web, as carried out by the conveyor device and the separating device, the film web performs a step-by-step movement along the conveyor axis, whereby separated sections of the film web can be picked up while the film web is at rest, which is particularly advantageous for handling films of low thickness.
Prinzipiell ist vorgesehen, dass die Ambossplatte ortsfest an einem Maschinengestell aufgenommen ist und eine Relativbewegung der Fördereinrichtung und der Trenneinrichtung gegenüber der Ambossplatte zur Durchführung des Fördervorgangs und des Trennvorgangs vorgenommen wird.In principle, it is intended that the anvil plate is fixed to a machine frame and that a relative movement of the conveying device and the separating device is carried out with respect to the anvil plate in order to carry out the conveying process and the separating process.
Bei einer alternativen Ausführungsform ist vorgesehen, dass die Fördereinrichtung und die Trenneinrichtung ortsfest am Maschinengestell aufgenommen sind und dass die Ambossplatte eine lineare, intermittierende und zyklisch wiederkehrende Relativbewegung parallel zur Förderachse gegenüber der Fördereinrichtung und der Trenneinrichtung vornimmt. Hierbei kann insbesondere vorgesehen sein, dass ein der Ambossplatte zugeordnetes Ablagemagazin für eine bogenartig konfektionierte Folienbahn bzw. eine der Ambossplatte zugeordnete Vorratsrolle mit einer aufgewickelten Folienbahn mit der Ambossplatte bewegt wird.In an alternative embodiment, it is provided that the conveyor device and the separating device are fixedly mounted on the machine frame and that the anvil plate carries out a linear, intermittent and cyclically recurring relative movement parallel to the conveyor axis with respect to the conveyor device and the separating device. In this case, it can be provided in particular that a storage magazine assigned to the anvil plate for a sheet-like film web or a supply roll assigned to the anvil plate with a wound-up film web is moved with the anvil plate.
In jedem Fall kann vorgesehen sein, dass die Fördereinrichtung und/oder die Trenneinrichtung zusätzlich zu einer linearen Relativbewegung längs der Förderachse gegenüber der Ambossplatte noch wenigstens einen weiteren Freiheitsgrad der Bewegung, beispielsweise einen rotatorischen Bewegungsfreiheitsgrad oder einen quer zur Förderachse ausgerichteten linearen Bewegungsfreiheitsgrad aufweisen.In any case, it can be provided that the conveying device and/or the separating device, in addition to a linear relative movement along the conveying axis relative to the anvil plate, also have at least one further degree of freedom of movement, for example a rotational degree of freedom of movement or a linear degree of freedom of movement aligned transversely to the conveying axis.
Vorteilhafte Weiterbildungen der Erfindung sind Gegenstand der Unteransprüche.Advantageous developments of the invention are the subject of the subclaims.
Zweckmäßig ist es, wenn die Fördereinrichtung in einer ersten Förderposition einen ersten, minimalen Abstand gegenüber einer quer zur Förderachse ausgerichteten Vorderkante der Ambossplatte und in einer zweiten Förderposition einen zweiten, maximalen Abstand gegenüber der Vorderkante einnimmt und dass die Trenneinrichtung in einer Ruheposition einen dritten, maximalen Abstand gegenüber der Vorderkante einnimmt und in einer Arbeitsposition einen vierten, minimalen Arbeitsabstand gegenüber der Vorderkante einnimmt. Hierbei ist der zweite Abstand größer als der vierte Abstand gewählt, so dass eine Überdeckung eines Arbeitsbereichs der Fördereinrichtung und eines Arbeitsbereichs der Trenneinrichtung gewährleistet ist. Eine Differenz zwischen dem ersten, minimalen Abstand für die Fördereinrichtung gegenüber der Vorderkante der Ambossplatte und dem zweiten, maximalen Abstand beschreibt den maximalen Arbeitshub, den die Fördereinrichtung längs der Förderachse durchführen kann. In Abhängigkeit von der Gestaltung der Trenneinrichtung kann dieser maximale Arbeitshub vollständig oder nur teilweise für die Bewegung der Fördereinrichtung ausgenutzt werden. Eine Differenz zwischen dem dritten, maximalen Abstand für die Trenneinrichtung gegenüber der Vorderkante der Ambossplatte und dem vierten, minimalen Abstand beschreibt den maximalen Arbeitshub, den die Trenneinrichtung längs der Förderachse durchführen kann. Inwieweit dieser maximale Arbeitshub vollständig oder nur teilweise ausgenutzt wird, ist von der Gestaltung der wenigstens einen Schneide der Trenneinrichtung abhängig. Da der zweite Abstand, den die Fördereinrichtung gegenüber der Vorderkante der Ambossplatte einnehmen kann, größer als der vierte Abstand, den die Trenneinrichtung gegenüber der Vorderkante der Ambossplatte einnehmen kann, gewählt ist, ist sichergestellt, dass die Trenneinrichtung stets einen von der Fördereinrichtung auf der Arbeitsoberfläche der Ambossplatte ausgelegten Endbereich der Folienbahn bearbeiten kann. Besonders bevorzugt ist vorgesehen, dass gleichsinnige Bewegungen der Fördereinrichtung und der Trenneinrichtung längs der Förderachse synchron erfolgen, um eine möglichst schnelle Bearbeitung des Endbereichs der Folienbahn zu gewährleisten.It is expedient if the conveyor device in a first conveyor position assumes a first, minimum distance from a front edge of the anvil plate aligned transversely to the conveyor axis and in a second conveyor position assumes a second, maximum distance from the front edge and that the separating device has a third, maximum distance from the front edge in a rest position and a fourth, minimum working distance from the front edge in a working position. The second distance is selected to be greater than the fourth distance so that an overlap of a working area of the conveyor device and a working area of the separating device is guaranteed. A difference between the first, minimum distance for the conveyor device from the front edge of the anvil plate and the second, maximum distance describes the maximum working stroke that the conveyor device can perform along the conveyor axis. Depending on the design of the separating device, this maximum working stroke can be fully or only partially utilized for the movement of the conveyor device. A difference between the third, maximum distance for the separating device from the front edge of the anvil plate and the fourth, minimum distance describes the maximum working stroke that the separating device can perform along the conveyor axis. The extent to which this maximum working stroke is fully or only partially utilized depends on the design of the at least one cutting edge of the separating device. Since the second distance that the conveyor device can take from the front edge of the anvil plate is selected to be greater than the fourth distance that the separating device can take from the front edge of the anvil plate, it is ensured that the separating device can always process an end region of the film web laid out by the conveyor device on the working surface of the anvil plate. It is particularly preferred that movements of the conveyor device and the separating device in the same direction take place synchronously along the conveyor axis in order to ensure that the end region of the film web is processed as quickly as possible.
Bei einer Weiterbildung der Erfindung ist vorgesehen, dass die Fördereinrichtung einen Transportzylinder mit einer quer zur Förderachse und parallel zur Arbeitsoberfläche ausgerichteten Transportzylinderachse aufweist, der für eine Durchführung des Fördervorgangs mit einer Linearbewegung längs der Förderachse und/oder mit einer Rotationsbewegung um die Transportzylinderachse ausgebildet ist. Die Aufgabe des Transportzylinders besteht darin, den Endbereich der Folienbahn zeitweilig aufzunehmen und eine in Richtung der Förderachse gerichtete Zugkraft auf die Folienbahn auszuüben, um die Folienbahn aus einem Ablagemagazin herauszuziehen oder von einer Vorratsrolle abzurollen. Hierzu kann der Transportzylinder mit einer Klemmeinrichtung, insbesondere mit einer Greiferleiste oder einer Mehrzahl von Greifern, zur Festlegung des Endbereichs der Folienbahn ausgerüstet sein. Zur Durchführung der Relativbewegung für den Transportzylinder gegenüber der Ambossplatte ist vorgesehen, dass dem Transportzylinder eine Antriebseinrichtung zugeordnet ist, die zur Einleitung einer linearen Bewegung parallel zur Förderachse und zur Einleitung einer Rotationsbewegung um die Transportzylinderachse ausgebildet ist. Eine derartige Antriebseinrichtung kann beispielsweise als Anordnung eines Hydraulikzylinders für die Linearbewegung und eines Rädergetriebes für die Rotationsbewegung des Transportzylinders verwirklicht werden. Bevorzugt ist vorgesehen, dass sowohl für die Bereitstellung der Linearbewegung als auch für die Bereitstellung der Rotationsbewegung des Transportzylinders jeweils individuell ansteuerbare Antriebe, insbesondere elektrische Servoantriebe, vorgesehen sind, die von einer Steuer- und Regeleinrichtung in Abhängigkeit vom gewünschten Arbeitshub sowie in Abhängigkeit von der gewünschten Rotationsbewegung für den Transportzylinder angesteuert werden können.In a further development of the invention, it is provided that the conveyor device has a transport cylinder with a transport cylinder axis aligned transversely to the conveyor axis and parallel to the work surface, which is designed to carry out the conveying process with a linear movement along the conveyor axis and/or with a rotational movement about the transport cylinder axis. The task of the transport cylinder is to temporarily hold the end region of the film web and to exert a tensile force on the film web directed in the direction of the conveyor axis in order to pull the film web out of a storage magazine or unroll it from a supply roll. For this purpose, the transport cylinder can be equipped with a clamping device, in particular with a gripper bar or a plurality of grippers, for fixing the end region of the film web. In order to carry out the relative movement for the transport cylinder with respect to the anvil plate, it is provided that the transport cylinder is assigned a drive device which is designed to initiate a linear movement parallel to the conveyor axis and to initiate a rotational movement about the transport cylinder axis. Such a drive device can be implemented, for example, as an arrangement of a hydraulic cylinder for the linear movement and a gear train for the rotational movement of the transport cylinder. It is preferably provided that individually controllable drives, in particular electric servo drives, are provided both for providing the linear movement and for providing the rotational movement of the transport cylinder, which can be controlled by a control and regulating device depending on the desired working stroke and depending on the desired rotational movement for the transport cylinder.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die Trenneinrichtung einen Schneidzylinder mit einer quer zur Förderachse und parallel zur Arbeitsoberfläche ausgerichteten Schneidzylinderachse aufweist, der für eine Durchführung des Trennvorgangs mit einer Überlagerung einer Linearbewegung längs der Förderachse und einer Rotationsbewegung um die Schneidzylinderachse ausgebildet ist, wobei die wenigstens eine Schneide an einer Außenoberfläche des Schneidzylinders angebracht ist. Die Aufgabe des Schneidzylinders besteht darin, den Endbereich der Folienbahn entweder vollständig von der übrigen Folienbahn abzutrennen oder Ausschnitte aus der Folienbahn herauszuschneiden. Hierzu weist der Schneidzylinder wenigstens eine Schneide auf, kann jedoch auch mit einer Mehrzahl von unterschiedlich geformten Schneiden versehen sein, um auch komplexe Geometrien vom Endbereich der Folienbahn abschneiden zu können und/oder aus dem Endbereich der Folienbahn ausschneiden zu können. Ergänzend oder alternativ kann der Schneidzylinder auch mit einem Prägewerkzeug und/oder einen Rillwerkzeug ausgerüstet sein.In a further embodiment of the invention, the separating device has a cutting cylinder with a cutting cylinder axis aligned transversely to the conveyor axis and parallel to the working surface, which is designed to carry out the separating process with a superposition of a linear movement along the conveyor axis and a rotational movement about the cutting cylinder axis, wherein the at least one cutting edge is attached to an outer surface of the cutting cylinder. The task of the cutting cylinder is to either completely separate the end region of the film web from the rest of the film web or to cut out sections from the film web. For this purpose, the cutting cylinder has at least one cutting edge, but can also be provided with a plurality of differently shaped cutting edges in order to be able to cut complex geometries from the end region of the film web and/or to cut them out of the end region of the film web. In addition or alternatively, the cutting cylinder can also be equipped with an embossing tool and/or a creasing tool.
Beispielhaft ist vorgesehen, dass der Schneidzylinder das einzige Formatteil der Trennvorrichtung ist, also die einzige Komponente der Trennvorrichtung, die bei einer Veränderung des Bauteils, das vom Endbereich der Folienbahn abgeschnitten oder aus den Endbereich der Folienbahn ausgeschnitten werden soll, ausgetauscht werden kann.For example, it is intended that the cutting cylinder is the only format part of the separating device, i.e. the only component of the separating device that can be replaced if the component that is to be cut off from the end region of the film web or cut out of the end region of the film web is changed.
Um den Aufwand für die Anpassung des Schneidzylinders bei einer Veränderung des Bauteils möglichst gering zu halten kann der Schneidzylinder einen formstabilen, mit Permanentmagneten und/oder Elektromagneten versehenen Trägerzylinder und darauf aufgebrachte Schneidbleche und/oder Rillbleche und/oder Prägebleche aufweisen, die einen raschen Formatwechsel ermöglichen. Hierzu kann insbesondere vorgesehen sein, dass am Trägerzylinder wenigstens eine Positioniereinrichtung, insbesondere in Form eines Paßstifts, vorgesehen ist, um eine exakte Positionierung der auswechselbaren Schneidbleche und/oder Rillbleche und/oder Prägebleche gewährleisten.In order to keep the effort required to adapt the cutting cylinder when the component is changed as low as possible, the cutting cylinder can have a dimensionally stable carrier cylinder equipped with permanent magnets and/or electromagnets and cutting plates and/or creasing plates and/or embossing plates applied to it, which enable a quick format change. For this purpose, it can be provided in particular that at least one positioning device, in particular in the form of a dowel pin, is provided on the carrier cylinder in order to ensure exact positioning of the replaceable cutting plates and/or creasing plates and/or embossing plates.
Zur Durchführung der Relativbewegung für den Schneidzylinder gegenüber der Ambossplatte ist vorgesehen, dass dem Schneidzylinder eine Antriebseinrichtung zugeordnet ist, die zur Einleitung einer linearen Bewegung parallel zur Förderachse und zur Einleitung einer Rotationsbewegung um die Schneidzylinderachse ausgebildet ist. Eine derartige Antriebseinrichtung kann beispielsweise als Anordnung eines Hydraulikzylinders für die Linearbewegung und eines Rädergetriebes für die Rotationsbewegung des Schneidzylinders verwirklicht werden. Bevorzugt ist vorgesehen, dass sowohl für die Bereitstellung der Linearbewegung als auch für die Bereitstellung der Rotationsbewegung des Schneidzylinders jeweils individuell ansteuerbare Antriebe, insbesondere elektrische Servoantriebe, vorgesehen sind, die von einer Steuer- und Regeleinrichtung in Abhängigkeit vom gewünschten Arbeitshub sowie in Abhängigkeit von der gewünschten Rotationsbewegung für den Schneidzylinder angesteuert werden können.In order to carry out the relative movement of the cutting cylinder with respect to the anvil plate, the cutting cylinder is assigned a drive device which is designed to initiate a linear movement parallel to the conveyor axis and to initiate a rotational movement around the cutting cylinder axis. Such a drive device can be implemented, for example, as an arrangement of a hydraulic cylinder for the linear movement and a gear train for the rotational movement of the cutting cylinder. It is preferably provided that individually controllable drives, in particular electric servo drives, are provided both for providing the linear movement and for providing the rotational movement of the cutting cylinder, which can be controlled by a control and regulating device depending on the desired working stroke and depending on the desired rotational movement for the cutting cylinder.
Bevorzugt ist vorgesehen, dass die Arbeitsoberfläche einen ebenen, insbesondere rechteckig ausgebildeten, Auflagebereich für den Endbereich der Folienbahn sowie beidseitig an den Auflagebereich angrenzende und längs der Förderachse erstreckte sowie erhaben vom Auflagebereich abragende Lagerleisten aufweist und dass der Schneidzylinder bei der Durchführung der Bewegung zwischen der Ruheposition und der Arbeitsposition zumindest bereichsweise mit einer Außenoberfläche auf den Lagerleisten aufliegt. Die randseitig an der Arbeitsoberfläche jeweils mit einer längsten Kante parallel zur Förderachse ausgerichteten Lagerleisten werden für eine Abwälzbewegung des Schneidzylinders während der Relativbewegung des Schneidzylinders gegenüber der Ambossplatte genutzt. Aufgrund der Geometrie der Lagerleisten, deren Oberseiten parallel zueinander und mit dem ersten spitzem Winkel zur Arbeitsoberfläche ausgerichtet sind, ergeben sich in Wechselwirkung mit den Konusabschnitten, die an der Außenumfangsfläche des Schneidzylinders ausgebildet sind, jeweils flächige Auflagen zwischen Schneidzylinder und Lagerleisten. Bevorzugt ist vorgesehen, dass die Erstreckung der Konusabschnitte in Richtung der Schneidzylinderachse größer als die Erstreckung der Oberseiten der Lagerleisten in Richtung der Schneidzylinderachse ist. In Abhängigkeit von einer lateralen Positionierung des Schneidzylinders gegenüber den Lagerleisten kann somit ein Abstand der Schneidzylinderachse gegenüber der Arbeitsoberfläche eingestellt werden. Bevorzugt ist vorgesehen, dass eine Aufhängung des Schneidzylinders eine Positionsveränderung für den Schneidzylinder längs der Schneidzylinderachse ermöglicht, um die daraus resultierende Abstandseinstellung zwischen der Schneidzylinderachse und der Arbeitsoberfläche zu ermöglichen. Die Konusabschnitte des Schneidzylinders können auch als austauschbare Laufringe ausgebildet sein, um beispielsweise im Verschleißfall eine Weiterverwendung des Schneidzylinders nach Austausch der Laufringe gewährleisten zu können.It is preferably provided that the working surface has a flat, in particular rectangular, support area for the end area of the film web as well as bearing strips on both sides adjacent to the support area and extending along the conveyor axis and protruding from the support area, and that the cutting cylinder rests on the bearing strips with an outer surface at least in part when moving between the rest position and the working position. The edges of the working surface each have a longest edge parallel to the Bearing strips aligned with the conveyor axis are used for a rolling movement of the cutting cylinder during the relative movement of the cutting cylinder with respect to the anvil plate. Due to the geometry of the bearing strips, the upper sides of which are aligned parallel to one another and at the first acute angle to the work surface, in interaction with the conical sections formed on the outer peripheral surface of the cutting cylinder, flat supports are created between the cutting cylinder and the bearing strips. It is preferably provided that the extension of the conical sections in the direction of the cutting cylinder axis is greater than the extension of the upper sides of the bearing strips in the direction of the cutting cylinder axis. Depending on a lateral positioning of the cutting cylinder with respect to the bearing strips, a distance of the cutting cylinder axis from the work surface can thus be adjusted. It is preferably provided that a suspension of the cutting cylinder enables a change in position for the cutting cylinder along the cutting cylinder axis in order to enable the resulting distance adjustment between the cutting cylinder axis and the work surface. The conical sections of the cutting cylinder can also be designed as replaceable races, for example to ensure that the cutting cylinder can be used again after the races have been replaced in the event of wear.
Bei einer alternativen Ausführungsform ist vorgesehen, dass die Lagerleisten austauschbar ausgebildet sind und dass der Schneidzylinder in denjenigen Bereichen seiner Außenumfangsfläche, die zur Auflage an den Oberseite der Lagerleisten bestimmt sind, kreiszylindrisch ausgebildet ist. Dementsprechend wird hierbei eine Anpassung eines Abstands zwischen der Schneidzylinderachse und der Arbeitsoberfläche durch den Austausch der Lagerleisten bewirkt, ohne dass eine laterale Einstellmöglichkeit für den Schneidzylinder bereitgestellt werden muss.In an alternative embodiment, it is provided that the bearing strips are designed to be exchangeable and that the cutting cylinder is designed to be circularly cylindrical in those areas of its outer circumferential surface that are intended to rest on the top of the bearing strips. Accordingly, an adjustment of a distance between the cutting cylinder axis and the working surface is made possible by exchanging of the bearing strips without the need to provide a lateral adjustment option for the cutting cylinder.
Vorteilhaft ist es, wenn dem Transportzylinder ein Sensor zugeordnet ist, der zur Erfassung einer Stirnkante des Endbereichs der Folienbahn, insbesondere in der ersten Förderposition ausgebildet ist und/oder dass dem Schneidzylinder ein Sensor zur Erfassung einer Position der Schneide, insbesondere in der Ruheposition, zugeordnet ist und/oder dass im Bereich der Vorderkante der Ambossplatte ein Sensor zur Erfassung von Eigenschaften der Folienbahn angeordnet ist.It is advantageous if a sensor is assigned to the transport cylinder, which is designed to detect a front edge of the end region of the film web, in particular in the first conveying position, and/or that a sensor is assigned to the cutting cylinder for detecting a position of the cutting edge, in particular in the rest position, and/or that a sensor for detecting properties of the film web is arranged in the region of the front edge of the anvil plate.
Der dem Transportzylinder zugeordnete Sensor hat somit in Verbindung mit einer geeigneten Auswerteeinrichtung zur Auswertung des Sensorsignals die Aufgabe, eine Aussage darüber zu ermöglichen, ob die Länge des auf den Transportzylinder aufgewickelten Endbereichs der Folienbahn ausreichend ist. Sofern dies nicht der Fall sein sollte, müssen Maßnahmen getroffen werden, insbesondere durch Rotation des Transportzylinders, um die Länge des Endbereichs der Folienbahn, der auf den Transportzylinder aufgewickelt ist, vor der Durchführung der Auslegebewegung, die anschließend vom Transportzylinder ausgeführt wird, auf ein vorgegebenes Maß zu korrigieren. Der dem Transportzylinder zugeordnete Sensor kann ortsfest am Maschinengestell angeordnet sein, um die Erfassung der Stirnkante des Endereichs der Folienbahn in der ersten Förderposition zu ermöglichen. Alternativ kann vorgesehen sein, dass der Sensor derart mit dem Transportzylinder verbunden ist, dass er bei einer Linearbewegung des Transportzylinders mitgeführt wird.The sensor assigned to the transport cylinder, in conjunction with a suitable evaluation device for evaluating the sensor signal, therefore has the task of making it possible to determine whether the length of the end region of the film web wound onto the transport cylinder is sufficient. If this is not the case, measures must be taken, in particular by rotating the transport cylinder, to correct the length of the end region of the film web wound onto the transport cylinder to a predetermined value before carrying out the laying-out movement, which is then carried out by the transport cylinder. The sensor assigned to the transport cylinder can be arranged in a fixed position on the machine frame in order to enable the detection of the front edge of the end region of the film web in the first conveying position. Alternatively, it can be provided that the sensor is connected to the transport cylinder in such a way that it is carried along during a linear movement of the transport cylinder.
Der dem Schneidzylinder zugeordnete Sensor hat in Verbindung mit einer geeigneten Auswerteeinrichtung zur Auswertung des Sensorsignals die Aufgabe, eine Aussage darüber zu ermöglichen, ob die wenigstens eine Schneide des Schneidzylinders vor der Durchführung des Trennvorgangs in einer korrekten Position ist. Sofern dies nicht der Fall sein sollte, kann beispielsweise durch Rotation des Schneidzylinders eine Einstellung der korrekten Lage der wenigstens eine Schneide eingestellt werden. Der dem Schneidzylinder zugeordnete Sensor kann ortsfest am Maschinengestell angeordnet sein, um die Position der wenigstens einen Schneide in der Ruheposition des Transportzylinders zu erwachen. Alternativ kann vorgesehen sein, dass der Sensor an eine Antriebseinrichtung für den Schneidzylinder angeordnet ist und eine Erfassung der Position der wenigstens eine Schneide während einer Relativbewegung des Schneidzylinders gegenüber der Ambossplatte durchführen kann.The sensor assigned to the cutting cylinder has, in conjunction with a suitable evaluation device, to evaluate the The purpose of the sensor signal is to provide information about whether the at least one cutting edge of the cutting cylinder is in the correct position before the cutting process is carried out. If this is not the case, the correct position of the at least one cutting edge can be set, for example, by rotating the cutting cylinder. The sensor assigned to the cutting cylinder can be arranged in a fixed location on the machine frame in order to detect the position of the at least one cutting edge in the rest position of the transport cylinder. Alternatively, it can be provided that the sensor is arranged on a drive device for the cutting cylinder and can detect the position of the at least one cutting edge during a relative movement of the cutting cylinder with respect to the anvil plate.
Im Bereich der Vorderkante der Ambossplatte 6 und damit in einem Bereich zwischen einem Ablagemagazin für eine bogenartig konfektionierte Folienbahn bzw. einer der Ambossplatte zugeordneten Vorratsrolle mit einer aufgewickelten Folienbahn und der Ambossplatte kann ein Sensor angeordnet sein, mit dem eine Erfassung von Eigenschaften der Folienbahn durchgeführt wird. Beispielhaft kann dieser Sensor zur Erkennung von Mängeln der Folienbahn genutzt werden.In the area of the front edge of the
Zweckmäßig ist es, wenn an der Arbeitsoberfläche und/oder an einer Außenoberfläche der Fördereinrichtung und/oder an einer Außenoberfläche der Trenneinrichtung wenigstens eine Mündungsöffnung eines Fluidkanals ausgebildet ist, der zur Bereitstellung eines Unterdrucks oder eines druckbeaufschlagten Fluids ausgebildet ist. Vorteilhaft ist es, wenn die Arbeitsfläche zumindest bereichsweise mit einer Vielzahl, insbesondere in einer Matrix mit einheitlicher Teilung, angeordneten Mündungsöffnungen des wenigstens einen Fluidkanals versehen ist, um beispielsweise nach dem auslegen des Endbereichs der Folienbahn eine zuverlässige Anhaftung des Endbereichs der Folienbahn durch eine Unterdruckbeaufschlagung der Mündungsöffnungen des Fluidkanals bewirken zu können. Der wenigstens eine Fluidkanals steht mit einer Unterdruckversorgung und/einer Fluidquelle, insbesondere einer Druckluftquelle, in Verbindung. Durch eine Ventileinrichtung, die zwischen der Unterdruckversorgung bzw. der Fluidquelle und dem Fluidkanal angeordnet ist, kann Einfluss auf einem Unterdruck bzw. Überdruck an den jeweiligen Mündungsöffnungen in der Arbeitsoberfläche genommen werden. Gegebenenfalls kann vorgesehen sein, dass in der Ambossplatte mehrere separat voneinander ausgebildete Fluidkanäle mit jeweils zugeordneten Mündungsöffnungen vorgesehen sind, um unterschiedliche Bereiche der Arbeitsoberfläche in unterschiedlicher Weise mit Unterdruck oder Druckluft versorgen zu können. Die Mündungsöffnungen des Fluidkanals können beispielsweise durch Bohrungen ausgebildet sein, die quer zur Arbeitsoberfläche der Ambossplatte ausgerichtet sind. Gegebenenfalls ist vorgesehen, zumindest einen Teil der Mündungsöffnungen durch eine poröse Ausgestaltung eines Teilbereichs der Ambossplatte zu verwirklichen, dies kann beispielsweise durch Verwendung einer Platte aus einem Metall-Sintermaterial erzielt werden, die in eine geeignete Vertiefung in der Ambossplatte eingesetzt wird und mit einem oder mehreren Fluidkanälen in Verbindung steht. Der Vorteil einer derartigen Ausgestaltung zumindest eines Teilbereichs der Ambossplatte liegt darin, dass dort sowohl eine Ansaugung oder auch ein Abblasen der Folienbahn und auch ein Trennvorgang für den Endbereich der Folienbahn vorgenommen werden kann.It is expedient if at least one outlet opening of a fluid channel is formed on the working surface and/or on an outer surface of the conveying device and/or on an outer surface of the separating device, which is designed to provide a negative pressure or a pressurized fluid. It is advantageous if the working surface is provided at least in regions with a plurality of outlet openings of the at least one fluid channel, in particular arranged in a matrix with a uniform division. is, for example, in order to be able to ensure reliable adhesion of the end region of the film web by applying negative pressure to the mouth openings of the fluid channel after the end region of the film web has been laid out. The at least one fluid channel is connected to a negative pressure supply and/or a fluid source, in particular a compressed air source. A valve device arranged between the negative pressure supply or the fluid source and the fluid channel can influence a negative pressure or positive pressure at the respective mouth openings in the work surface. If necessary, it can be provided that a plurality of separately formed fluid channels, each with associated mouth openings, are provided in the anvil plate in order to be able to supply different regions of the work surface with negative pressure or compressed air in different ways. The mouth openings of the fluid channel can, for example, be formed by bores that are aligned transversely to the work surface of the anvil plate. If necessary, it is provided to realize at least some of the mouth openings by a porous design of a partial area of the anvil plate. This can be achieved, for example, by using a plate made of a metal sintered material, which is inserted into a suitable recess in the anvil plate and is connected to one or more fluid channels. The advantage of such a design of at least a partial area of the anvil plate is that both a suction or blowing off of the film web and a separation process for the end area of the film web can be carried out there.
Die an der Außenoberfläche der Fördereinrichtung, bei der es sich insbesondere um den Transportzylinder oder um einen linearbeweglich parallel zur Arbeitsoberfläche einstellbaren Transportbalken handeln kann, vorgesehenen Mündungsöffnungen des wenigstens eines Fluidkanals werden insbesondere zum Ansaugen des Endbereichs der Folienbahn eingesetzt, um beispielsweise Zugkräfte auf die Folienbahnen ausüben zu können. Der wenigstens eine Fluidkanal der Fördereinrichtung steht unter Zwischenschaltung einer Ventileinrichtung mit einer Unterdruckversorgung und/oder einer Druckluftquelle in Verbindung. Beispielhaft kann vorgesehen sein, dass die Mündungsöffnungen des wenigstens einen Fluidkanals über wenigstens einen Teilbereich der Außenoberfläche, insbesondere über die gesamte Breite der Fördereinrichtung, oder über die gesamte Außenoberfläche der Fördereinrichtung angeordnet sind.The bearings on the outer surface of the conveyor, which is in particular the transport cylinder or a linearly movable, adjustable roller parallel to the working surface, The orifices of the at least one fluid channel provided on the conveyor device, which can be a transport bar, are used in particular for sucking in the end region of the film web in order to be able to exert tensile forces on the film webs, for example. The at least one fluid channel of the conveyor device is connected to a vacuum supply and/or a compressed air source with the interposition of a valve device. For example, it can be provided that the orifices of the at least one fluid channel are arranged over at least a partial region of the outer surface, in particular over the entire width of the conveyor device, or over the entire outer surface of the conveyor device.
Die an der Außenoberfläche der Trenneinrichtung, bei der es sich insbesondere um einen Schneidzylinder handeln kann, vorgesehenen Mündungsöffnungen des wenigstens einen Fluidkanals werden insbesondere zum Ansaugen von Abschnitten oder Ausschnitten der Folienbahn während der Durchführung und/oder nach der Durchführung des Trennvorgangs genutzt und ermöglichen damit beispielsweise eine kontrollierte Abfuhr von ausgeschnittenen Bereichen der Folienbahn oder abgeschnittenen Abfallstücken der Folienbahn. Der wenigstens eine Fluidkanal der Trenneinrichtung steht unter Zwischenschaltung einer Ventileinrichtung mit einer Unterdruckversorgung und/oder einer Druckluftquelle in Verbindung. Bei einer vorteilhaften Weiterbildung der Erfindung ist vorgesehen, dass die wenigstens eine Schneide der Trenneinrichtung und die Arbeitsoberfläche der Ambossplatte zur Durchführung eines Trennvorgangs für den Endbereich der Folienbahn aus der Gruppe: Querschneiden der Folienbahn, Ausschneiden von Folienausschnitten aus der Folienbahn (Formschnitt), Quetschschneiden, Hubstanzen, Scherenschneiden ausgebildet ist.The mouth openings of the at least one fluid channel provided on the outer surface of the separating device, which can in particular be a cutting cylinder, are used in particular for sucking in sections or cutouts of the film web during and/or after the separating process has been carried out and thus enable, for example, a controlled removal of cut-out areas of the film web or cut-off waste pieces of the film web. The at least one fluid channel of the separating device is connected to a vacuum supply and/or a compressed air source with the interposition of a valve device. In an advantageous development of the invention, it is provided that the at least one cutting edge of the separating device and the working surface of the anvil plate are designed to carry out a separating process for the end region of the film web from the group: cross-cutting of the film web, cutting out film sections from the film web (form cutting), crush cutting, stroke punching, scissor cutting.
In weiterer Ausgestaltung der Erfindung ist vorgesehen, dass die Trenneinrichtung als Hubstanze für eine Durchführung einer quer zur Arbeitsoberfläche der Ambossplatte ausgerichteten Hubstanzbewegung ausgebildet ist und zwischen einer Ruheposition mit einem Abstand, der größer als eine Erstreckung der Transporteinrichtung quer zur Arbeitsoberfläche ist, und einer Arbeitsposition mit verschwindendem Abstand zur Arbeitsoberfläche linearbeweglich zur Ambossplatte gelagert ist.In a further embodiment of the invention, it is provided that the separating device is designed as a lifting punch for carrying out a lifting punch movement aligned transversely to the working surface of the anvil plate and is mounted to the anvil plate so as to be linearly movable between a rest position with a distance that is greater than an extension of the transport device transversely to the working surface and a working position with a vanishing distance to the working surface.
Vorteilhaft ist es, wenn ein Greifer für eine Abfuhr von Gutteilen in definierte Ablageposition und/oder für eine Abfuhr von Abfall relativbeweglich an der Ambossplatte angeordnet ist. Die Aufgabe des Greifers besteht insbesondere darin, die aus dem Endbereich der Folienbahn ausgeschnittenen Gutteile bzw. die vom Endbereich der Folienbahn abgeschnittenen und Gutteile in einer Weise abzutransportieren, bei der auch bei einer sehr geringen Dicke der Gutteile eine unerwünschte Deformation vermieden werden kann. Ferner ist der Greifer dazu ausgebildet, die Gutteile in definierte Weise, insbesondere möglichst eben und mit vorgebbarer Ausrichtung entweder auf einen Gutteile-Stapel aufzulegen oder direkt einem nachfolgenden Verarbeitungsprozess für die Gutteile zuzuführen. Beispielhaft kann vorgesehen sein, dass mehrere Trennvorrichtungen räumlich derart angeordnet sind, dass die jeweiligen Greifer unterschiedlich konfigurierte Gutteile einer zentral angeordneten Verarbeitungseinrichtung, bei der es sich beispielsweise um eine Folienschweißeinrichtung handeln kann, zuzuführen, so dass eine unmittelbare Weiterverarbeitung der von der jeweiligen Trennvorrichtung bereitgestellten Gutteile vorgenommen werden kann. Bevorzugt ist dem Greifer eine Sensoreinrichtung, insbesondere eine Kamera mit Bildverarbeitung, zugeordnet, um eine Qualitätskontrolle für die aus der Folienbahn ausgeschnittenen oder von der Folienbahn abgeschnittenen Teile durchzuführen und diese entweder als Gutteile oder als Ausschuss qualifizieren zu können und eine entsprechende Greiferbewegung einzuleiten.It is advantageous if a gripper for removing good parts to a defined storage position and/or for removing waste is arranged on the anvil plate in a relatively movable manner. The task of the gripper is in particular to transport the good parts cut out of the end area of the film web or the good parts cut off from the end area of the film web in a way that can avoid undesirable deformation even when the good parts are very thin. Furthermore, the gripper is designed to either place the good parts on a stack of good parts in a defined way, in particular as evenly as possible and with a predeterminable orientation, or to feed them directly to a subsequent processing process for the good parts. For example, it can be provided that several separating devices are spatially arranged in such a way that the respective grippers feed differently configured good parts to a centrally arranged processing device, which can be a film welding device, for example, so that the good parts provided by the respective separating device can be processed immediately. Preferably, a sensor device, in particular a camera with image processing, is assigned to the gripper in order to carry out a quality control for the To be able to carry out the inspection of parts cut out of the film web or cut off from the film web and to qualify these either as good parts or as rejects and to initiate a corresponding gripper movement.
Die Aufgabe der Erfindung wird durch ein Verfahren zum bereichsweisen Trennen einer Folienbahn mit den folgenden Schritten gelöst: Erfassen eines Endbereichs einer Folienbahn, der auf einer Arbeitsoberfläche einer Ambossplatte ausgelegt ist, mit einem Transportzylinder, Durchführen einer ersten Aufrollbewegung für den Endbereich der Folienbahn auf den Transportzylinder während einer ersten linearen Rückzugsbewegung des Transportzylinders, Detektieren einer am Transportzylinder angeordneten Stirnkante des Endbereichs der Folienbahn mit einem Sensor und Regelung einer zweiten Aufrollbewegung für den Transportzylinder an einer ersten Förderposition, an der der Transportzylinder einen ersten, minimalen Abstand gegenüber einem ersten Endbereich der Ambossplatte aufweist, Durchführung einer Kombination einer Abrollbewegung und einer zweiten linearen Vorschubbewegung für den Transportzylinder längs der Arbeitsoberfläche der Ambossplatte für ein Ablegen des Endbereichs der Folienbahn auf der Arbeitsoberfläche und Durchführen einer zweiten linearen Rückzugsbewegung des Transportzylinders in die erste Förderposition, Durchführen einer Kombination einer Abrollbewegung und einer dritten linearen Vorschubbewegung für einen Schneidzylinder längs der Arbeitsoberfläche der Ambossplatte zwischen einer Ruheposition mit maximalen Abstand vom ersten Endbereich der Ambossplatte und einer Arbeitsposition mit minimalem Abstand vom ersten Endbereich der Ambossplatte, wobei eine Schneide des Schneidzylinders einen Trennvorgang für einen zwischen der Schneide und der Arbeitsoberfläche aufgenommenen Endbereich der Folienbahn vornimmt und Ergreifen und Abtransportieren eines von der Schneide getrennten Abschnitts des Endbereichs der Folienbahn mit einer beweglich an der Ambossplatte gelagerten Greifeinrichtung.The object of the invention is achieved by a method for separating a film web in sections with the following steps: detecting an end region of a film web that is laid out on a working surface of an anvil plate with a transport cylinder, carrying out a first rolling movement for the end region of the film web onto the transport cylinder during a first linear retraction movement of the transport cylinder, detecting a front edge of the end region of the film web arranged on the transport cylinder with a sensor and controlling a second rolling movement for the transport cylinder at a first conveying position at which the transport cylinder has a first, minimum distance from a first end region of the anvil plate, carrying out a combination of a rolling movement and a second linear feed movement for the transport cylinder along the working surface of the anvil plate for laying the end region of the film web on the working surface and carrying out a second linear retraction movement of the transport cylinder into the first conveying position, carrying out a combination of a rolling movement and a third linear feed movement for a cutting cylinder along the working surface of the anvil plate between a rest position with maximum Distance from the first end region of the anvil plate and a working position with a minimum distance from the first end region of the anvil plate, whereby a cutting edge of the cutting cylinder carries out a cutting process for an end region of the film web held between the cutting edge and the working surface and gripping and transporting away a section of the end region of the film web separated from the cutting edge with a gripping device movably mounted on the anvil plate.
Bei der Durchführung des Verfahrens wird die Folienbahn entweder aus einem Ablagemagazin entnommen oder von einer Vorratsrolle abgewickelt, wobei die Aufgabe des Transportzylinders darin besteht, im Wechsel mit der Durchführung eines Trennvorgangs, der mit dem Schneidzylinder durchgeführt wird, jeweils den Endbereich der Folienbahn derart auf der Arbeitsoberfläche der Ambossplatte auszulegen, dass für den nachfolgenden Trennvorgang eine ausreichende Länge der Folienbahn bereitgestellt wird.When carrying out the process, the film web is either taken from a storage magazine or unwound from a supply roll, whereby the task of the transport cylinder is to lay out the end region of the film web on the working surface of the anvil plate in such a way that a sufficient length of the film web is provided for the subsequent cutting process, alternating with the execution of a cutting process carried out with the cutting cylinder.
Für die Verfahrensdurchführung wird davon ausgegangen, dass in einem vorausgegangenen Arbeitsschritt bzw. einem vorbereitenden Arbeitsschritt ein Endbereich der Folienbahn zumindest derart auf der Arbeitsoberfläche der Ambossplatte ausgelegt ist, dass ein Erfassen des Endbereichs durch den Transportzylinder vorgenommen werden kann. Hierzu ist insbesondere vorgesehen, wenigstens einen Fluidkanal im Transportzylinder, der wenigstens eine an der Außenoberfläche des Transportzylinders ausmündende Mündungsöffnung aufweist, durch Ansteuerung einer Ventileinrichtung, die einer Unterdruckversorgung nachgeschaltet ist, mit Unterdruck zu beaufschlagen, so dass eine Ansaugung zumindest eines Teilbereichs der Folienbahn an die Außenoberfläche des Transportzylinders erfolgt. Ergänzend oder alternativ kann auch die Verwendung einer am Transportzylinder ausgebildeten Greifleiste zur Erfassung des Endbereichs der Folienbahn vorgesehen sein.For the implementation of the method, it is assumed that in a previous work step or a preparatory work step, an end region of the film web is laid out on the working surface of the anvil plate at least in such a way that the end region can be grasped by the transport cylinder. For this purpose, it is provided in particular that at least one fluid channel in the transport cylinder, which has at least one mouth opening opening out on the outer surface of the transport cylinder, is subjected to negative pressure by controlling a valve device that is connected downstream of a negative pressure supply, so that at least a partial region of the film web is sucked onto the outer surface of the transport cylinder. In addition or alternatively, the use of a gripping bar formed on the transport cylinder can also be provided for grasping the end region of the film web.
In einem nachfolgenden Schritt erfolgt eine erste Aufrollbewegung für den Endbereich der Folienbahn auf den Transportzylinder im Zuge einer Linearbewegung des Transportzylinders in Richtung einer Vorderkante der Ambossplatte. Diese erste Aufrollbewegung wird als Überlagerung einer Rotation des Transportzylinders um die Transportzylinderachse und einer Translation des Transportzylinders parallel zur Arbeitsoberfläche durchgeführt. Hierbei kann vorgesehen sein, dass die erste Aufrollbewegung bezogen auf die Arbeitsoberfläche der Ambossplatte schlupffrei vorgenommen wird, wobei exakt diejenige Länge des Endbereichs der Folienbahn auf den Transportzylinder aufgewickelt wird, die durch die Abwälzbewegung des Transportzylinders auf der Arbeitsoberfläche der Ambossplatte aufgenommen werden kann, ohne dass der Endbereich der Folienbahn eine lineare Relativbewegung gegenüber der Arbeitsoberfläche durchführt. Alternativ kann vorgesehen sein, dass die erste Aufrollbewegung für den Endbereich der Folienbahn bezogen auf die Arbeitsoberfläche der Ambossplatte bereits mit Schlupf erfolgt. Hierzu wird die Rotationsbewegung des Transportzylinders, die der Linearbewegung des Transportzylinders überlagert wird, derart gewählt, dass der Endbereich der Folienbahn eine lineare Relativbewegung gegenüber der Arbeitsoberfläche durchführt, wobei Zugkräfte auf die Folienbahn einwirken, die beispielsweise zu einem Abwicklungsvorgang für die auf einer Vorratsrolle aufgewickelte Folienbahn führt.In a subsequent step, a first rolling movement for the end area of the film web onto the transport cylinder takes place during a linear movement of the transport cylinder in Towards a front edge of the anvil plate. This first rolling-up movement is carried out as a superposition of a rotation of the transport cylinder about the transport cylinder axis and a translation of the transport cylinder parallel to the working surface. In this case, it can be provided that the first rolling-up movement is carried out without slippage in relation to the working surface of the anvil plate, with exactly that length of the end region of the film web being wound onto the transport cylinder that can be taken up by the rolling movement of the transport cylinder on the working surface of the anvil plate, without the end region of the film web carrying out a linear relative movement in relation to the working surface. Alternatively, it can be provided that the first rolling-up movement for the end region of the film web in relation to the working surface of the anvil plate already takes place with slippage. For this purpose, the rotational movement of the transport cylinder, which is superimposed on the linear movement of the transport cylinder, is selected such that the end region of the film web performs a linear relative movement with respect to the working surface, whereby tensile forces act on the film web, which leads, for example, to an unwinding process for the film web wound on a supply roll.
Während der Durchführung der ersten Aufrollbewegung oder nach Erreichen der ersten Förderposition kann mit Hilfe des Sensors, der dem Transportzylinder zugeordnet ist, detektiert werden, ob eine Stirnkante des Endereichs der Folienbahn an einer vorgegebenen Position ist oder ob durch eine weitere Aufrollbewegung, die auch als zweite Aufrollbewegung bezeichnet wird, erforderlich ist. Ergibt sich bei der Detektion der Stirnkante des Endbereichs der Folienbahn, dass die Stirnkante bereits an der gewünschten Position angeordnet ist, so stimmen ein Sollwert und einem Istwert für die Regelung der zweiten Aufrollbewegung überein, so dass praktisch keine zweite Aufrollbewegung vorgenommen wird. Liegt hingegen eine Abweichung zwischen der vorgegebenen Position der Stirnkante und einer tatsächlichen Position der Stirnkante vor, so wird die zweite Aufrollbewegung unter Rückkopplung eines jeweils aktualisierten Sensorsignals solange durchgeführt, bis die Abweichung verschwindet.During the execution of the first winding movement or after reaching the first conveying position, the sensor assigned to the transport cylinder can be used to detect whether a front edge of the end region of the film web is at a predetermined position or whether a further winding movement, also referred to as a second winding movement, is required. If the detection of the front edge of the end region of the film web shows that the front edge is already in the desired position, a target value and an actual value for the control of the second winding movement match, so that practically no second rolling movement is carried out. If, however, there is a deviation between the specified position of the front edge and an actual position of the front edge, the second rolling movement is carried out with feedback from an updated sensor signal until the deviation disappears.
In einem nachfolgenden Schritt erfolgt eine Abrollbewegung für den Endbereich der Folienbahn, um den Endbereich der Folienbahn derart auf der Arbeitsoberfläche der Ambossplatte auszulegen, dass der nachfolgende Trennvorgang ordnungsgemäß ausgeführt werden kann. Hierzu ist vorgesehen, dass der Transportzylinder eine schlupffreie Abrollbewegung gegenüber der Arbeitsoberfläche der Ambossplatte durchführt, bei der es nicht zu einer linearen Verlagerung des Endbereichs der Folienbahn oder zur Ausübung von nennenswerten Zugkräften auf den Endbereich der Folienbahn kommt. Diese Abrollbewegung ist ebenfalls eine Überlagerung einer Rotationsbewegung des Transportzylinders und die Transportzylinderachse und einer linearen Verlagerung des Transportzylinders längs der Arbeitsoberfläche der Ambossplatte. Am Ende dieser Abrollbewegung wird der Endbereich der Folienbahn vom Transportzylinder freigegeben, beispielsweise durch Abschaltung einer Unterdruckversorgung für den Fluidkanal und die damit verbundenen Mündungsöffnungen oder gegebenenfalls durch Bereitstellung von Druckluft an den Mündungsöffnungen, um ein Abblasen des Endbereichs und damit eine Entfernung des Endbereichs der Folienbahn von dem Transportzylinder zu unterstützen. Anschließend wird der Transportzylinder wieder in die erste Funktionsposition überführt, um die Arbeitsoberfläche für die Durchführung des Trennvorgangs freizugeben.In a subsequent step, the end region of the film web is rolled off in order to lay out the end region of the film web on the working surface of the anvil plate in such a way that the subsequent separation process can be carried out properly. For this purpose, the transport cylinder is designed to carry out a slip-free rolling movement relative to the working surface of the anvil plate, which does not result in a linear displacement of the end region of the film web or in the exertion of significant tensile forces on the end region of the film web. This rolling movement is also a superposition of a rotational movement of the transport cylinder and the transport cylinder axis and a linear displacement of the transport cylinder along the working surface of the anvil plate. At the end of this rolling movement, the end region of the film web is released from the transport cylinder, for example by switching off a vacuum supply for the fluid channel and the associated mouth openings or, if necessary, by providing compressed air at the mouth openings in order to assist in blowing off the end region and thus removing the end region of the film web from the transport cylinder. The transport cylinder is then returned to the first functional position to free up the work surface for the separation process to be carried out.
Ergänzend kann vorgesehen sein, dass eine Unterdruckbeaufschlagung wenigstens eines in der Ambossplatte ausgebildeten Fluidkanals vorgenommen wird, um den Endbereich der Folienbahn zumindest abschnittsweise an der Arbeitsoberfläche an zu sorgen und damit für die Durchführung des Trennvorgangs zu stabilisieren.In addition, it can be provided that a negative pressure is applied to at least one of the anvil plates Fluid channel is carried out in order to ensure that the end region of the film web is at least partially attached to the working surface and thus to stabilize it for the execution of the separation process.
Der Trennvorgang für den Endbereich der Folienbahn wird mit Hilfe des Schneidzylinders durchgeführt, der mit einer schupffreien Abrollbewegung, die eine Überlagerung einer Rotationsbewegung des Schneidzylinders um eine Schneidzylinderachse und eine lineare Bewegung des Schneidzylinders längs der Förderachse umfasst, ausgehend von einer Ruheposition in eine Arbeitsposition überführt wird. Hierbei gelangt die wenigstens eine Schneide des Schneidzylinders in Eingriff mit den Endbereich der Folienbahn und führt den gewünschten Trennvorgang aus, mit dem ein Abschnitt vom Endbereich der Folienbahn oder ein Ausschnitt aus den Endbereich der Folienbahn oder eine Kombination hiervon bewirkt werden kann.The separation process for the end region of the film web is carried out with the aid of the cutting cylinder, which is transferred from a rest position to a working position with a non-slip rolling movement that includes a superposition of a rotational movement of the cutting cylinder around a cutting cylinder axis and a linear movement of the cutting cylinder along the conveyor axis. In this case, at least one cutting edge of the cutting cylinder comes into engagement with the end region of the film web and carries out the desired separation process, with which a section of the end region of the film web or a cutout from the end region of the film web or a combination thereof can be produced.
Je nach Geometrie des Schneidzylinders und in Abhängigkeit von der Geometrie des vom Endbereich der Folienbahn abgeschnittenen oder aus dem Endbereich der Folienbahn ausgeschnittenen Teils erfolgt entweder zunächst eine schlupffreie Rückführung des Schneidzylinders aus der Arbeitsposition in die Ruheposition, bevor das erzeugte Teil mit einer Greifeinrichtung abtransportiert wird, oder es erfolgt ein Abtransport des erzeugten Teils mit einer Greifeinrichtung vor der Rückführung des Schneidzylinders in die Ruheposition.Depending on the geometry of the cutting cylinder and the geometry of the part cut off from the end area of the film web or cut out from the end area of the film web, the cutting cylinder is either first returned from the working position to the rest position without slipping before the produced part is transported away with a gripping device, or the produced part is transported away with a gripping device before the cutting cylinder is returned to the rest position.
Bevorzugt ist vorgesehen, dass die Greifeinrichtung einen Sensor, insbesondere eine Kamera mit Bildverarbeitung, umfasst, mit deren Hilfe eine Qualitätskontrolle für das erzeugte Teil vorgenommen werden kann und nur diejenigen Teile einer nachgelagerten Verarbeitung zugeführt werden, die auch als Gutteile qualifiziert werden können.It is preferably provided that the gripping device comprises a sensor, in particular a camera with image processing, with the aid of which a quality control can be carried out for the produced part and only those parts are fed to downstream processing which can also be qualified as good parts.
Ergänzend oder alternativ kann vorgesehen sein, dass wenigstens ein Fluidkanal im Schneidzylinder mit einem Unterdruck beaufschlagt wird, um bei der Durchführung der Rückführbewegung das erzeugte Teil und/oder eventuelle Abfälle abzutransportieren.Additionally or alternatively, it can be provided that at least one fluid channel in the cutting cylinder is subjected to a negative pressure in order to transport away the produced part and/or any waste when carrying out the return movement.
Bei einer Weiterbildung des Verfahrens kann vorgesehen sein, dass der Endbereich der Folienbahn mit dem Transportzylinder erfasst wird, um eine erste lineare Vorschubbewegung für den Transportzylinder längs einer Arbeitsoberfläche der Ambossplatte für ein Auslegen des Endbereichs der Folienbahn auf der Arbeitsoberfläche vorzunehmen. Dieser Schritt kann beispielsweise vor der Durchführung der ersten Aufrollbewegung durchgeführt werden, um zunächst eine ausreichende Länge des Endbereichs der Folienbahn für die Durchführung der ersten Aufrollbewegung zur Verfügung zu stellen.In a further development of the method, it can be provided that the end region of the film web is grasped by the transport cylinder in order to carry out a first linear feed movement for the transport cylinder along a working surface of the anvil plate for laying out the end region of the film web on the working surface. This step can be carried out, for example, before the first rolling-up movement is carried out in order to initially provide a sufficient length of the end region of the film web for carrying out the first rolling-up movement.
Ferner kann eine Trennvorrichtung zum bereichsweisen Trennen einer Folienbahn vorgesehen werden, die eine Ambossplatte mit einer Arbeitsoberfläche zum Auslegen einer Folienbahn aufweist und die eine Fördereinrichtung zur Förderung der Folienbahn längs einer parallel zur Arbeitsoberfläche ausgerichteten Förderachse aufweist und die einen Schneidzylinder aufweist, der wenigstens eine Schneide zur Durchführung eines Trennvorgangs für die zwischen der Schneide und der Arbeitsoberfläche aufgenommene Folienbahn aufweist, wobei randseitig an der Arbeitsoberfläche jeweils mit einer längsten Kante parallel zur Förderachse ausgerichtete Lagerleisten angeordnet sind, die parallel zueinander und in einem ersten spitzem Winkel zur Arbeitsoberfläche ausgerichtete Oberseiten aufweisen und wobei der Schneidzylinder an einer Außenumfangsfläche zwei Konusabschnitte aufweist, die in einem zweiten spitzen Winkel zu einer Schneidzylinderachse ausgerichtet sind und die zur Auflage auf den Oberseiten ausgebildet sind, wobei zwischen Ambossplatte und Schneidzylinder eine Verstelleinrichtung zur Positionierung des Schneidzylinders längs der Schneidzylinderachse ausgebildet ist.Furthermore, a separating device for separating a film web in certain areas can be provided, which has an anvil plate with a working surface for laying out a film web and which has a conveyor device for conveying the film web along a conveyor axis aligned parallel to the working surface and which has a cutting cylinder which has at least one cutting edge for carrying out a separating process for the film web received between the cutting edge and the working surface, wherein bearing strips are arranged on the edge of the working surface, each with a longest edge aligned parallel to the conveyor axis, which have upper sides aligned parallel to one another and at a first acute angle to the working surface, and wherein the cutting cylinder has two conical sections on an outer peripheral surface which are aligned at a second acute angle to a cutting cylinder axis and which are designed to rest on the upper sides, wherein An adjustment device for positioning the cutting cylinder along the cutting cylinder axis is formed between the anvil plate and the cutting cylinder.
Eine derartige Trenneinrichtung ermöglicht eine Abstandseinstellung zwischen der Arbeitsoberfläche und der wenigstens einen Schneide des Schneidzylinders durch eine Bewegung des Schneidzylinders längs der Schneidzylinderachse, da hierdurch aufgrund der Keilwirkung der Oberseiten der Lagerleisten in Verbindung mit den Konusabschnitten eine überlagerte Linearbewegung für den Schneidzylinder bewirkt wird, mit der ein Abstand zwischen der Schneidzylinderachse und der Arbeitsoberfläche beeinflusst wird. Eine derartige Ausgestaltung der Lagerleisten und des Schneidzylinders kann auch für die eingangs beschriebene sowie im Anspruch 1 sowie den zugehörigen Unteransprüchen beanspruchte Trenneinrichtung vorgesehen werden.Such a separating device enables a distance adjustment between the working surface and the at least one cutting edge of the cutting cylinder by moving the cutting cylinder along the cutting cylinder axis, since this causes a superimposed linear movement for the cutting cylinder due to the wedge effect of the upper sides of the bearing strips in conjunction with the conical sections, which influences a distance between the cutting cylinder axis and the working surface. Such a design of the bearing strips and the cutting cylinder can also be provided for the separating device described at the beginning and claimed in
Eine vorteilhafte Ausführungsform der Erfindung ist in der Zeichnung dargestellt. Hierbei zeigt:
Figur 1- eine Seitenansicht einer Trennvorrichtung mit einer Fördereinrichtung, einer Ambossplatte und einer Trenneinrichtung,
Figur 2- eine Ausschnittvergrößerung der Trennvorrichtung gemäß der
Figur 1 mit einigen Detaildarstellungen, Figur 3- eine Draufsicht auf eine Folienbahn, die mit der Trennvorrichtung gemäß den Figuren ein und 2 bearbeitet wurde,
Figur 4- eine schematische Darstellung der Fördereinrichtung und der Trenneinrichtung sowie der Folienbahn bei einem ersten Arbeitsschritt,
Figur 5- einen zweiten Arbeitsschritt für die Fördereinrichtung und die Trenneinrichtung,
Figur 6- einen dritten Arbeitsschritt für die Fördereinrichtung und die Trenneinrichtung,
Figur 7- einen vierten Arbeitsschritt für die Fördereinrichtung und die Trenneinrichtung,
Figur 8- einen fünften Arbeitsschritt für die Fördereinrichtung und die Trenneinrichtung,
Figur 9- einen sechsten Arbeitsschritt für die Fördereinrichtung und die Trenneinrichtung, und
Figur 10- eine stirnseitige Ansicht auf die mit Lagerleisten versehene Ambossplatte und den darauf abgestimmten Schneidzylinder.
- Figure 1
- a side view of a separating device with a conveyor, an anvil plate and a separating device,
- Figure 2
- a detail enlargement of the separating device according to the
Figure 1 with some detailed illustrations, - Figure 3
- a plan view of a film web which has been processed with the separating device according to Figures one and 2,
- Figure 4
- a schematic representation of the conveyor and separating device as well as the film web in a first work step,
- Figure 5
- a second work step for the conveyor and the separating device,
- Figure 6
- a third work step for the conveyor and the separating device,
- Figure 7
- a fourth work step for the conveyor and the separating device,
- Figure 8
- a fifth work step for the conveyor and the separating device,
- Figure 9
- a sixth work step for the conveyor and the separating device, and
- Figure 10
- a front view of the anvil plate with bearing strips and the matching cutting cylinder.
Eine in der
Hier zu umfasst die Trennvorrichtung 1 eine Materialrolle 4, auf der die Folienbahn 2 aufgewickelt ist eine Vorschubeinrichtung 5, die zur Unterstützung einer Abwickelbewegung für die Folienbahn 2 von der Materialrolle 4 ausgebildet ist, eine Ambossplatte 6 zur Auflage der Folienbahn 2, eine Fördereinrichtung 7 sowie eine Trenneinrichtung 8.For this purpose, the
Die Materialrolle 4, die Vorschubeinrichtung 5 und die Ambossplatte 6 sind rein exemplarisch an einem gemeinsamen, nicht dargestellten Maschinenrahmen angeordnet. Die Fördereinrichtung 7 sowie die Trenneinrichtung 8 sind in ebenfalls nicht dargestellter Weise relativbeweglich zur Ambossplatte 6 am Maschinenrahmen angeordnet, wobei für eine Relativbewegung der Fördereinrichtung 7 und der Trenneinrichtung 8 gegenüber der Ambossplatte 6 nicht näher dargestellte Antriebe, beispielsweise Hydraulikzylinder, Pneumatikzylinder, Hydraulikmotoren, Pneumatikmotoren, elektrische Servomotoren und Kombinationen hiervon eingesetzt werden können.The
Die Materialrolle 4 ist zur Bereitstellung der Folienbahn 2 ausgebildet, wobei eine Länge der auf die Materialrolle 4 aufgewickelten Folienbahn 2 um ein Vielfaches größer als eine Länge der Ambossplatte 6 ist, so dass eine Vielzahl von Ausschnitten 3 aus der Folienbahn 2 ausgeschnitten werden können, bevor ein Wechsel der Materialrolle 4 erforderlich ist.The
Die benachbart zur Materialwahl 4 angeordnete Vorschubeinrichtung 5 umfasst rein exemplarisch eine Seitenkantensteuerung 9, eine erste Umlenkrolle 10, eine zweite Umlenkrolle 11 sowie ein Förderwalzenpaar 12. Die Aufgabe der Seitenkantensteuerung 9, die während einer Förderbewegung der Folienbahn 2 eine seitliche Kante der Folienbahn 2 mittels einer nicht näher dargestellten Sensoreinrichtung abgetastet, besteht darin, eine mittige Anordnung der Folienbahn 2 auf der ersten Umlenkrolle 10 zu gewährleisten. Hierzu kann die Seitenkantensteuerung 9 über einen ebenfalls nicht dargestellten Aktor Einfluss auf die Ausrichtung der Folienbahn 2 gegenüber der ersten Umlenkrolle 10 nehmen. Nach Passieren der ersten Umlenkrolle 10 und der zweiten Umlenkrolle 11 wird die Folienbahn 2 zwischen zwei Förderwalzen 15, 16 des Förderwalzepaars 12 hindurchgeführt, wobei wenigstens eine der beiden Förderwalzen 15, 16 angetrieben sein kann, um eine Bewegung der Folienbahn 2 in der schematisch eingezeichneten Förderrichtung 17 zu unterstützen, die als Richtungsvektor einer Förderachse angesehen werden kann.The
Wie nachstehend näher erläutert wird, ist eine diskontinuierliche Förderung für die Folienbahn 2 vorgesehen, da die Bearbeitung der Folienbahn 2 auf der Ambossplatte 6 ebenfalls diskontinuierlich vorgenommen wird.As will be explained in more detail below, a discontinuous conveying is provided for the
Beispielhaft ist vorgesehen, dass in einem Bereich zwischen dem Förderwalzenpaar 12 und einer Vorderkante 18 der Ambossplatte 6 ein erster Sensor 40 oberhalb der Folienbahn 2 angeordnet ist, der zur Abtastung der Folienbahn 2 genutzt wird und Eigenschaften der Folienbahn wie beispielsweise einen Folientyp, vorzugsweise kontaktlos, erfassen kann. Ein elektrisches Sensorsignal des ersten Sensors 40 wird an eine nicht dargestellte Steuer- und Regeleinrichtung bereitgestellt und dort verarbeitet. Beispielhaft kann vorgesehen sein, anhand des Sensorsignals des ersten Sensors 40 eine Anpassung der Förderbewegungen der Vorschubeinrichtung 5 vorzunehmen.For example, it is provided that in an area between the
Die Ambossplatte 6 weist eine rein exemplarisch eben ausgebildete und quer zur Darstellungsebene der
Rein exemplarisch ist vorgesehen, dass die Arbeitsoberfläche 19 beidseitig mit Lagerleisten 24 versehen ist, die erhaben über die Arbeitsoberfläche 19 abragenden und deren längste Kante 25 parallel zu einer längsten Kante der Ambossplatte 6 ausgerichtet ist. Die Lagerleisten 24 können in einer quer zur längsten Kante 25 ausgerichteten Querschnittsebene einen rechteckigen Querschnitt oder einen Querschnitt in Form eines rechtwinkeligen Trapezes mit einer in Richtung der jeweils gegenüberliegenden Lagerleisten 24 abfallenden Oberseite aufweisen. Die Aufgabe der Lagerleisten 24 besteht insbesondere darin, mit ihrer der Arbeitsoberfläche 19 abgewandten Oberseite 27 eine Auflagefläche für die nachstehend näher beschriebene Trenneinrichtung 8 zu bilden.Purely as an example, it is provided that the
Die Fördereinrichtung 7 ist rein exemplarisch als Transportzylinder 30 ausgebildet. Eine Transportzylinderachse 31 erstreckt sich quer zur Darstellungsebene der
Der Transportzylinder 30 kann auf verschiedene Weisen relativ zur Ambossplatte 6 bewegt werden. Eine nicht dargestellte Antriebseinrichtung für den Transportzylinder 30 umfasst beispielsweise eine Kombination eines Linearantriebs für eine Linearbewegung des Transportzylinders in der Förderrichtung 17 und entgegen der Förderrichtung 17 und eines Drehantriebs für eine Rotation des Transportzylinders 30 um die Transportzylinderachse 31. Mit einer derartigen Antriebseinrichtung kann der Transportzylinder 30 eine reine Linearbewegung, eine reine Rotationsbewegung oder eine Überlagerung einer Linearbewegung und einer Rotationsbewegung durchführen. Hierbei kann der Transportzylinder 30 aus der in
Die Trenneinrichtung 8 ist rein exemplarisch als Schneidzylinder 50 ausgebildet, der an einer kreiszylindrischen Außenoberfläche 51 mit einer ersten Schneide 52 und einer zweiten Schneide 53 ausgerüstet ist. Dabei ist die erste Schneide 52 über eine Gesamtbreite des Schneidzylinders 50 erstreckt und dient zur Durchführung eines Querschnitts 54 an der Folienbahn 2, wie dies in
Der Schneidzylinder 50 wird durch eine nicht dargestellte Antriebseinrichtung zwischen einer Ruheposition, in der der Schneidzylinder 50 einen dritten, maximalen Abstand 55 zur Vorderkante 18 der Ambossplatte 6 aufweist, und einer Arbeitsposition, in der der Schneidzylinder 50 einen vierten, minimalen Abstand 56 zur Vorderkante 18 aufweist, bewegt. Rein exemplarisch ist vorgesehen, dass die Antriebseinrichtung derart ausgebildet ist, dass stets eine Zwangskopplung zwischen einer Rotationsbewegung um eine Schneidzylinderachse 57 und einer Translationsbewegung parallel zur Förderrichtung 17 für den Schneidzylinder 50 vorliegt. Bevorzugt ist vorgesehen, dass die Antriebseinrichtung und der Schneidzylinder 50 derart aufeinander abgestimmt sind, dass der Schneidzylinder 50 mit seiner Außenoberfläche 51 eine schlupffreie Abwälzbewegung auf den Lagerleisten 24 durchführt.The cutting
Aus den
In einem ersten Schritt wird der Transportzylinder 30 durch eine Überlagerung einer Rotationsbewegung und einer Translationsbewegung derart positioniert, dass der Ansaugbereich 33 oberhalb des Endbereichs 14 angeordnet ist. Rein exemplarisch ist der Transportzylinder 30 derart angeordnet, dass der Ansaugbereich 33 mit einer Vorderkante 44 des Endbereichs 14 der Folienbahn 2 abschließt. Sobald der Transportzylinder 30 diese Position einnimmt, kann eine Aktivierung der Unterdruckversorgung vornehmen, so dass an den Mündungsöffnungen 36 der Bohrungen 34 ein Unterdruck bereitgestellt wird, mit dem eine flächige Ansaugung des Endbereichs 14 an die Umfangsfläche 32 des Transportzylinders 30 erfolgt.In a first step, the
In einem zweiten Schritt, wie er in der
In einem dritten Schritt, wie er in der
In einem vierten Schritt, wie er in der
In einem fünften Schritt, wie er in der
In einem sechsten Schritt, wie er in der
Der in der
Bei einer nicht dargestellten Ausführungsform der Ambossplatte und/oder des Schneidzylinders sind in den jeweiligen Oberflächen Vertiefungen angeordnet, die für eine zeitweilige Aufnahme von erhaben von der Folienbahn abragenden Komponenten wie beispielsweise in die Folienbahn integrierten elektronischen Bauteilen ausgebildet sind oder dass die Vertiefungen in der Ambossplatte 6 so angeordnet sind, dass sich in der Ambossplatte 6 selbst eine Schneide bildet, die als Gegenschneide zur wenigstens einer der Schneiden 52, 53 am Schneidzylinder 50 wirkt.In an embodiment of the anvil plate and/or the cutting cylinder (not shown), depressions are arranged in the respective surfaces, which are designed for temporarily receiving components that protrude from the film web, such as electronic components integrated into the film web, or the depressions in the
Claims (13)
- Separator (1) for separating a film web (2) region by region, having an anvil plate (6) which has a working surface (19) for laying out an end region (14) of a film web (2), having a conveyor (7) which is mounted such that it can be moved linearly with respect to the anvil plate (6) along a conveying axis (17) and which is designed to carry out a laying-out movement for the end region (14) of the film web (2), which laying-out movement is aligned parallel to the working surface (19), having a cutting unit (8) which has at least one cutting edge (52, 53) for carrying out a separating operation for an end region (14) of the film web (2) received between the cutting edge (52, 53) and the working surface (19), the conveyor (7) and the cutting unit (8) being designed for alternately carrying out the lay out movement and the separating operation for the end region (14) of the film web (2) .
- Separator (1) according to claim 1, characterized in that the conveyor (7) in a first conveying position has a first, minimum distance (37) relative to a front edge (18) of the anvil plate (6) aligned transversely to the conveying axis (17) and in a second conveying position has a second, maximum distance (38) relative to the front edge (18), and in that the cutting unit (8) assumes a third, maximum distance (55) relative to the front edge (18) in a rest position and assumes a fourth, minimum working distance (56) relative to the front edge (18) in a working position.
- Separator (1) according to claim 2, characterized in that the conveyor (7) has a transport cylinder (30) with a transport cylinder axis (31) aligned transversely to the conveying axis (17) and parallel to the working surface (19), which transport cylinder is designed for carrying out the conveying operation with a linear movement along the conveying axis (17) and/or with a rotational movement about the transport cylinder axis (31).
- Separator (1) according to claim 3, characterized in that the cutting unit (8) has a cutting cylinder (50) with a cutting cylinder axis (57) aligned transversely to the conveying axis (17) and parallel to the working surface (19), which is designed for carrying out the separating operation with a superimposition of a linear movement along the conveying axis (17) and a rotational movement about the cutting cylinder axis (57), the at least one cutting edge (52, 53) being attached to an outer surface of the cutting cylinder (50) .
- Separator (1) according to claim 4, characterized in that the working surface (19) has a planar, in particular rectangular, bearing region for the end region (14) of the film web (2) and bearing strips (24) which adjoin the bearing region on both sides, extend along the conveying axis (17) and project in a raised manner from the bearing region, and in that the cutting cylinder (50) rests with an outer surface (51) on the bearing strips (24) at least in regions when the movement between the rest position and the working position is carried out.
- Separator (1) according to one of claims 3 to 5, characterized in that the transport cylinder (30) is assigned a sensor (41) which is designed to detect a front edge (44) of the end region (14) of the film web (2), in particular in the first conveying position, and/or in that the cutting cylinder (50), in particular in the rest position, is assigned a sensor (42) for detecting a position of the cutting edge, and/or in that a sensor (40) for detecting properties of the film web (2) is arranged in the region of the front edge (18) of the anvil plate (6).
- Separator (1) according to one of the preceding claims, characterized in that at least one mouth opening (36) of a fluid channel (34) is formed on the working surface (19) and/or on an outer surface (32) of the conveyor (7) and/or on an outer surface (51) of the cutting unit (8), which fluid channel (34) is designed to provide a negative pressure or a pressurized fluid.
- Separator (1) according to claim 1, characterized in that the at least one cutting edge (52, 53) of the cutting unit (8) and the working surface (19) of the anvil plate (6) are designed for carrying out a separating operation for the end region (14) of the film web (2) from the group: transverse cutting of the film web (2), cutting out of film cutouts (3) from the film web (2), crush cutting, lifting punching, shear cutting.
- Separator (1) according to claim 1, characterized in that the cutting unit is designed as a lifting punch for carrying out a lifting punching movement aligned transversely to the working surface (19) of the anvil plate (6) and is mounted so as to be linearly movable with respect to the anvil plate (6) between a rest position at a distance which is greater than an extension of the transport device (7) transversely to the working surface and a working position at a disappearing distance from the working surface (19).
- Separator (1) according to one of the preceding claims, characterized in that a gripper (60) is arranged on the anvil plate (6) so as to be relatively movable for a removal of good parts into defined deposit position and/or for a removal of waste.
- Separator (1), in particular according to one of the preceding claims, for separating a film web (2) region by region, having an anvil plate (6) which has a working surface (19) for laying out a film web (2) and with which a conveyor (7) for conveying the film web (2) along a conveying axis (17) aligned parallel to the working surface (19) is associated, and with which is associated a cutting cylinder (50) which is movable parallel to the working surface (19) and which has at least one cutting edge (52, 53) for carrying out a cutting operation for the film web (2) received between the cutting edge (52, 53) and the working surface (19), wherein bearing strips (24) are arranged at the edges of the working surface (19), each with a longest edge (25) aligned parallel to the conveying axis (17), which bearing strips (24) have upper sides (27) aligned parallel to one another and at an acute angle (64) to the working surface (19), and wherein the cutting cylinder (50) has two cone sections (58) on an outer circumferential surface (51) which are aligned at an acute angle (64) to a cutting cylinder axis (57) and which are designed to rest on the upper sides (27) of the bearing strips (24), wherein an adjusting unit for positioning the cutting cylinder (50) along the cutting cylinder axis (57) is formed between the anvil plate (6) and the cutting cylinder (50).
- Method for cutting a film web (2) region by region, comprising the steps: Detecting an end region (14) of a film web (2) laid out on a working surface (19) of an anvil plate (6) with a transport cylinder (30), performing a first winding movement for the end region (14) of the film web (2) onto the transport cylinder (30) during a first linear retracting movement of the transport cylinder (30), detecting an end edge (44) of the end region (14) of the film web (2), which end edge (44) is arranged on the transport cylinder (30), with a sensor (41), and controlling a second rewinding movement for the transport cylinder (30) at a first conveying position at which the transport cylinder (30) has a first, minimum distance (37) from a first end region (18) of the anvil plate (6), performing a combination of an unwinding movement and a second linear advancing movement for the transport cylinder (30) along the working surface (19) of the anvil plate (6) for depositing the end region (14) of the film web (2) on the working surface (19), and performing a second linear retracting movement of the transport cylinder (30) to the first conveying position, performing a combination of an unwinding movement and a third linear advancing movement for a cutting cylinder (50) along the working surface (19) of the anvil plate (6) between a rest position with maximum distance (55) from the first end region of the anvil plate (6) and a working position with minimum distance (56) from the first end region (18) of the anvil plate (6), wherein a cutting edge (52, 53) of the cutting cylinder (50) performs a cutting operation for an end region (14) of the film web (2) received between the cutting edge (52, 53) and the working surface (19), and gripping and transporting away a portion (3) of the end region (14) of the film web (2)cut from the cutting edge (52, 53) by means of a gripping device (60) mounted movably on the anvil plate (6).
- Method according to claim 12, characterized in that the end region (14) of a film web (2) is gripped by the transport cylinder (30) to make a first linear feed movement for the transport cylinder (30) along a working surface (19) of the anvil plate (6) for laying out the end region (14) of the film web (2) on the working surface (19).
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102020134021.4A DE102020134021B4 (en) | 2020-12-17 | 2020-12-17 | Separating device and method for separating a film web in certain areas |
PCT/EP2021/082673 WO2022128363A1 (en) | 2020-12-17 | 2021-11-23 | Separating device and method for regionally separating a film web |
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EP4263200A1 EP4263200A1 (en) | 2023-10-25 |
EP4263200B1 true EP4263200B1 (en) | 2024-06-12 |
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EP21819772.1A Active EP4263200B1 (en) | 2020-12-17 | 2021-11-23 | Separating device and method for regionally separating a film web |
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US (1) | US20240034591A1 (en) |
EP (1) | EP4263200B1 (en) |
CA (1) | CA3205565A1 (en) |
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WO (1) | WO2022128363A1 (en) |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE1560111B1 (en) | 1962-08-16 | 1971-01-14 | Edgar Von Ruedgisch | Device for storing, laying and cutting lengths of fabric |
DE3218544A1 (en) | 1982-05-17 | 1983-11-17 | Bullmerwerk G.O. Stumpf GmbH Spezialmaschinenfabrik, 7421 Mehrstetten | DEVICE FOR HANGING AND UNHANGING MATERIAL CARRIERS |
DE102008011493A1 (en) * | 2008-02-20 | 2009-08-27 | Spm Steuer Gmbh & Co. Kg | Method for disposal of spent embossing foil web and embossing device with continuously operating disposal device |
DE102015010251A1 (en) | 2015-08-06 | 2017-02-09 | Schobertechnologies GmbH | Method and device for processing and finishing an endless web |
-
2020
- 2020-12-17 DE DE102020134021.4A patent/DE102020134021B4/en active Active
-
2021
- 2021-11-23 EP EP21819772.1A patent/EP4263200B1/en active Active
- 2021-11-23 WO PCT/EP2021/082673 patent/WO2022128363A1/en active Application Filing
- 2021-11-23 US US18/257,860 patent/US20240034591A1/en active Pending
- 2021-11-23 CA CA3205565A patent/CA3205565A1/en active Pending
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DE102020134021A1 (en) | 2022-06-23 |
EP4263200A1 (en) | 2023-10-25 |
WO2022128363A1 (en) | 2022-06-23 |
US20240034591A1 (en) | 2024-02-01 |
CA3205565A1 (en) | 2022-06-23 |
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