EP4496710A1 - Zylinder für eine bogenbe- und/oder verarbeitenden maschine mit saugluftöffnungen sowie maschine zur be- und/oder verarbeitung bogenförmigen substrates mit einem solchen zylinder - Google Patents
Zylinder für eine bogenbe- und/oder verarbeitenden maschine mit saugluftöffnungen sowie maschine zur be- und/oder verarbeitung bogenförmigen substrates mit einem solchen zylinderInfo
- Publication number
- EP4496710A1 EP4496710A1 EP23755022.3A EP23755022A EP4496710A1 EP 4496710 A1 EP4496710 A1 EP 4496710A1 EP 23755022 A EP23755022 A EP 23755022A EP 4496710 A1 EP4496710 A1 EP 4496710A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder
- stator
- magnetic
- recess
- substrate
- 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.)
- Pending
Links
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
- B41F21/102—Combinations of transfer drums and grippers with pneumatic means
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/18—Inking arrangements or devices for inking selected parts of printing formes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F11/00—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination
- B41F11/02—Rotary presses or machines having forme cylinders carrying a plurality of printing surfaces, or for performing letterpress, lithographic, or intaglio processes selectively or in combination for securities
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/08—Cylinders
- B41F13/18—Impression cylinders
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/001—Apparatus or machines for carrying out printing operations combined with other operations with means for coating or laminating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
- B41F19/002—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink
- B41F19/005—Apparatus or machines for carrying out printing operations combined with other operations with means for applying specific material other than ink with means for applying metallic, conductive or chargeable material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F23/00—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing
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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
- B65H5/00—Feeding articles separated from piles; Feeding articles to machines
- B65H5/22—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device
- B65H5/222—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices
- B65H5/226—Feeding articles separated from piles; Feeding articles to machines by air-blast or suction device by suction devices by suction rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2406/00—Means using fluid
- B65H2406/30—Suction means
- B65H2406/33—Rotary suction means, e.g. roller, cylinder or drum
- B65H2406/332—Details on suction openings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H2801/00—Application field
- B65H2801/03—Image reproduction devices
- B65H2801/21—Industrial-size printers, e.g. rotary printing press
Definitions
- the invention relates to a cylinder for a sheet-working and/or processing machine with suction air openings and to a machine for working and/or processing sheet-shaped substrates with such a cylinder according to the preamble of claim 1 or 15.
- DE 102018212 429 B4 discloses a printing machine with a screen printing unit and a device for aligning magnetic or magnetizable particles contained in the printing ink or varnish, wherein the device comprises a cylinder with a plurality of elements on the circumference that create a magnetic field and are arranged in several axially adjustable ring elements.
- the ring elements have suction air openings at the level of the cylinder envelopes, which serve to hold conveyed sheets and are or can be connected to a vacuum line or source via a rotary union.
- DE 11 2012 006 348 B4 relates to a combination printing machine and discloses, among other things, a magnetic cylinder with suction openings on the circumference of a rotating cylinder outer body, which are supplied with suction air during rotation from an air chamber extending over an angular range inside the cylinder as the cylinder moves over the angular range.
- the air chamber is delimited by two dividing strips that are firmly attached to an inner shaft and run in the axial direction.
- DE 102012 220401 B4 discloses a transfer drum for transporting a printed sheet, which has an inner tube and a coaxial to the inner tube and on This has a rotatably arranged outer tube which is provided with suction openings on the circumference.
- an intermediate tube Coaxially to the non-rotatable inner tube, an intermediate tube which can be adjusted relative to the inner tube by a limited angle of rotation is arranged between the inner tube and the rotatable outer tube, the intermediate tube enclosing the outer surface of the inner tube with its inner wall.
- the intermediate tube has at least one groove in the circumferential direction which extends along only part of the circumference of the inner tube or the intermediate tube and changes its position in the circumferential direction and thus the position of the angular range for the passage of the suction air by rotating the intermediate tube.
- DE 1 917 795 A relates to a suction air-operated transport device for sheet-shaped objects, wherein a roller shell provided with radial channels is rotatably mounted on an internal stator in the manner of a rotary valve, which has a suction line permanently connected to a suction air source in its interior
- DE 102014 001 969 B4 relates to a device for changing the format of a sheet transport drum, which has an outer sleeve with pneumatic nozzle channels and an inner sleeve with a cover segment for covering the nozzle channels depending on the format.
- the invention is based on the object of creating a cylinder for a sheet-working and/or processing machine with suction air openings and a machine for working and/or processing sheet-shaped substrates with such a cylinder.
- sheet transport on the cylinder can be carried out particularly precisely and/or safely, namely in particular without it being able to perform uncontrolled movements. This is achieved by suction onto the cylinder over at least one rotation angle phase.
- sheet transport can be optimized, particularly with regard to taking over and/or transferring from or to other sheet conveying means.
- This can be achieved in particular by the fact that the rotation angle phase with activated suction openings, i.e. with negative pressure applied, can be varied at least within certain limits with regard to its position and/or size around the rotation axis of the cylinder.
- the rotary union which is preferably arranged in a rotationally fixed manner on the front side of a shaft driving the cylinder or on a front-side cylinder pin, makes complex cylinder installations and/or adjustment mechanisms unnecessary and/or can be retrofitted to existing cylinders.
- a cylinder according to the invention for a sheet-handling and/or processing machine comprises holding means on the circumference, by means of which a substrate sheet to be conveyed via the cylinder is received with its leading end and is or can be held during rotation of the cylinder over a rotation angle range between the receipt of the substrate sheet and its downstream discharge, and a rotary feedthrough via which - in particular when a negative pressure is applied on the input side and/or a suction air source is connected - suction openings provided on the circumference of the cylinder can be subjected to negative pressure during an active and/or defined rotation angle phase of the cylinder, wherein the rotary feedthrough is adjustable at least with respect to a size of an angle sector for passing through the suction air, in short a passage angle sector, which determines the size of the defined and/or active rotation angle phase, and/or with respect to a position of a passage angle sector which determines the position of the defined and/or active rotation angle phase.
- a rotation angle phase that can be varied in position and/or size or a transmission angle sector that can be varied in position and/or size in conjunction with a clamping device that fixes the ring elements (also set out below) and/or with a design of magnet and suction elements as structural units (also set out below) and/or with a mobility of individual or all magnet elements in the axial and/or circumferential direction (also set out below) and/or with a clamping device that clamps the magnet elements or structural units (also set out below).
- the cylinder is designed as a magnetic cylinder and comprises in the area of its outer circumference a number, e.g. n x m (with n, m e N), of magnetic elements arranged in a matrix-like manner in rows running parallel to the axis and in columns running in the circumferential direction, as well as suction elements with suction openings facing outwards.
- n x m with n, m e N
- suction elements with suction openings facing outwards.
- the magnetic elements of columns running in the circumferential direction are arranged on or on a respective, open or closed ring-like support element received on a cylinder shaft, wherein the ring-like support element, viewed in the circumferential direction, comprises several chambers one behind the other, each of which is independently connected via corresponding line paths to the rotor of the rotary feedthrough on the one hand and to at least one group of suction openings opening out at the circumference on the other.
- a machine for treating and/or processing, in particular, sheet-shaped substrate comprises a substrate template, in the case of a web-shaped starting substrate, for example a cross cutter, at least one printing unit, through which substrate guided on a transport path through the machine is fed at least to a first side is and/or can be printed in a matrix-like manner using a number m of columns and a number n of rows, a product holder by means of which processed substrate can be combined in containers, and at least one transport cylinder provided in the substrate path between the substrate template and the product holder in the substrate path, which is designed in the manner mentioned above with suction openings and a rotary feedthrough connected to these.
- Fig. 1 shows an embodiment of a machine for producing optically variable image elements on a substrate
- Fig. 2 shows a schematic representation of a substrate printed in printing elements with optically variable coating agent, wherein a) shows a state with not yet oriented magnetic or magnetizable particles and b) shows a state after alignment of an imaging part, here exemplarily in the form of a number “1”;
- Fig. 3 is a schematic representation of a printing and downstream alignment process with an imaging printing unit cylinder and a cylinder having magnetic elements, shown as an example with a substrate sheet widening trapezoidally towards the trailing end;
- Fig. 4 shows an embodiment of a magnetic cylinder in perspective view;
- Fig. 5 is a detailed view of a support element equipped with several exemplary magnetic elements arranged one behind the other in the circumferential direction;
- Fig. 6 is a sectional view through a support element equipped with a magnetic element, but in a narrower design compared to Fig. 5;
- Fig. 7 is a detail of a longitudinal section through a cylinder according to Fig. 4;
- Fig. 8 shows an embodiment of a valve which selectively opens and closes a suction air opening
- Fig. 9 shows an embodiment of an active unit comprising a magnetic element and a suction element in a less complex design
- Fig. 10 is a plan view of an active unit according to Fig. 9, but without magnet and housing;
- Fig. 11 is a section through an embodiment of an active unit comprising a magnetic element and a suction element with a visible adjustment mechanism for axial adjustment of the magnetic element;
- Fig. 12 shows a section through an embodiment of an active unit comprising a magnetic element and a suction element with a recognizable adjustment mechanism for adjusting the magnetic element in the circumferential direction;
- Fig. 13 is a perspective view of an assembly aid for attaching or removing and/or positioning an active unit
- Fig. 14 is a perspective view of an active unit arranged on a ring element with the mounting aid from Fig. 13 attached;
- Fig. 15 is a perspective view of a cylinder inner body equipped with six ring elements
- Fig. 16 is a cross-sectional view of a cylinder with an inner cylinder body, a ring-segment-like support element arranged thereon and, by way of example, ten active units arranged on the latter;
- Fig. 17 shows a detail enlarging the fastening device for the support element
- Fig. 18 is a detail showing the fastening device for the support element
- Fig. 19 is a perspective view of a front connection for a cylinder with an operationally non-rotating stator of a rotary union;
- Fig. 20 shows the operationally non-rotating part of the rotary union according to Fig. 19 with the shafts continuing outwards;
- Fig. 21 shows an enlarged section of the two-part stator of the rotary union from Fig. 20;
- Fig. 22 is a perspective side view of a connection for a cylinder comprising the rotary union with adjusting means for adjusting the stator.
- a machine 01 in particular a security machine 01, e.g. a printing machine 01, in particular a security printing machine 01, which processes and/or processes web-shaped or, in particular, sheet-shaped substrate 02, preferably for producing optically variable image elements 03 on a substrate 02, e.g. a sheet-shaped printing material 02, comprises, for example, an application device 04, e.g. a printing unit 04, by means of which optically variable coating agent 06, e.g. optically variable printing ink 06 or varnish 06, is applied to at least one application point, e.g.
- a device 07 for aligning particles P contained in the optically variable coating agent 06 applied to the substrate 02 and responsible for the optical variability (see e.g. Fig. 1).
- This device 07 is also referred to below as an alignment device 07 or, since it creates an image for the optically variable pattern or motif through defined alignment of the particles P, also as an imaging alignment device 07.
- An application of coating agent 06 containing particles P to the printing material 02 and an image element 03 obtained by subsequent imaging alignment of previously randomly oriented particles P is shown schematically in Fig. 2, for example, using a representation of the number “1”.
- a) represents a state in which the coating agent 06 has been applied and is, for example, still randomly oriented
- b) represents a state in which an imaging alignment has taken place.
- the print image elements 08 made of variable coating agent 06 applied to the substrate 02 by the application device 04 before treatment by the alignment device 07 can correspond in size and position to the optically variable image elements 03 to be produced or can be larger than these, possibly even extending over the surface of several panels 09.
- the optically variable coating agent 06 is not applied to the entire surface. coated surface creates an optically variable image element 03 by alignment.
- the particles P responsible for the optical variability contained in the coating agent 06 are magnetic or magnetizable, non-spherical particles P, e.g. pigment particles P, hereinafter also referred to as magnetic flakes.
- the machine 01 is preferably designed for producing items 09, e.g. securities 09, in particular banknotes 09. This should also include in particular the production of intermediate securities products, e.g. the production of printing material 02, in particular in the form of web- or sheet-shaped printing material sections 02, in particular printing material sheets 02, with printed images of several securities 09.
- the substrate 02 can be formed by paper - e.g. paper based on or at least containing cellulose or preferably cotton fibers - by plastic polymer or by a hybrid product made thereof.
- a printing material section 02 formed by a longitudinal section of web-shaped substrate 02 or a sheet of a sheet-shaped substrate 02 a plurality of blanks 09, e.g. banknotes 09 to be produced or their printed images, are preferably arranged in a matrix-like manner in rows running transversely to the transport direction T next to one another and in columns running in the transport direction T one behind the other or are to be arranged in the course of the processing of the substrate 02 (indicated e.g. in Fig. 2 and in Fig. 3).
- the machine 01 designed as a printing press 01 can in principle comprise one or more printing units 04 of any printing process.
- it comprises a printing unit 04, in particular one operating according to the flexographic printing process or preferably according to the screen printing process.
- Printing unit 04 by means of which the optically variable coating agent 06 is or can be applied to a first side of the printing material 02.
- the printing methods mentioned, in particular the screen printing method can be used to apply a layer that is thicker than other printing methods.
- the term “first side” of the substrate 02 or the printing material 02 is chosen arbitrarily and is intended to refer to the side of the printing material 02 on which the optically variable coating agent 06 to be treated downstream by the alignment device 07 is or was or can be applied.
- the printing press 01 comprises a substrate template 13, preferably designed as a sheet feeder 13, from which the substrate 02, e.g. designed as a sheet-shaped printing material 02 - possibly via further printing or processing units - is or can be fed to the at least one printing unit 04 applying the optically variable coating agent 06, e.g. flexographic or preferably screen printing unit 04, which forms a printing point 11 for printing, e.g. a first side of the printing material 02 between a printing unit cylinder 14, in particular a forme cylinder 14, e.g. a screen printing cylinder 14, and a common cylinder 17, e.g. impression cylinder 17 (see e.g. Fig. 1).
- the substrate template 13 preferably designed as a sheet feeder 13 from which the substrate 02, e.g. designed as a sheet-shaped printing material 02 - possibly via further printing or processing units - is or can be fed to the at least one printing unit 04 applying the optically variable coating agent 06, e.g. flexographic or preferably screen printing unit 04,
- the printing unit 04 comprises a forme cylinder 14 as an imaging cylinder with a plurality of, in particular similar and/or identical, imaging printing elements 18, hereinafter also referred to as print subjects 18, or, in particular similar and/or identical, groups of imaging printing elements 18 or print subjects 18 on the circumference, which are arranged on a circumference corresponding to the print image length in several, e.g. a number, e.g. from four to eight, in particular five to seven, e.g. six, columns spaced apart from one another transversely to the transport direction T and on a cylinder width corresponding to the print image width in several rows spaced apart from one another in the transport direction T.
- printing subjects 18 are designed in the form of relief prints and, in the preferred case of a printing unit 04 operating according to screen printing, in the form of stencil prints.
- the printing material 02 can be fed to the alignment device 07 via conveying means, e.g. one or more conveying devices 12 designed as transport cylinders 12.
- conveying means e.g. one or more conveying devices 12 designed as transport cylinders 12.
- the conveying means could be formed by one or more positively driven and/or non-driven rollers.
- the printing material 02 can be fed directly or via further conveying means, e.g. further transport cylinders, to a further, e.g. second conveyor device 21 and can be fed by this to a product holder 22 for receiving the printing material 02 processed and/or processed in the machine 01, in the case of sheet-shaped printing material 02, a stack delivery 22.
- sheet-conveying means e.g. one or more transfer cylinders or drums or, as shown here, a conveyor device 21 designed, e.g.
- a gripper circulating conveyor 21, in particular a chain gripper system 21 are provided as conveying means, by means of which the printing material sheets 02 are taken over from the transport path section of the alignment device 07 via, if necessary, one or more further transport cylinders and fed, e.g. to the stack delivery 22.
- At least one drying device with one or more dryers 23 directed at the first side of the printing material 02 e.g. radiation dryers 23, and possibly a cooling device (not shown), e.g. cooling roller, can be provided on the transport path leading away from the alignment device 07.
- an inspection device e.g. one with a cylinder 152, e.g. transport cylinder 152, can be provided on the transport path between the alignment device 07 and the stack delivery 22.
- a sensor device 153 cooperating with the inspection cylinder 152 e.g. a camera 153, in particular a line camera 153, may be provided.
- the printing unit 04 and the alignment device 07 can be structurally combined, e.g. in the form of a module, to form a device 16 for generating optically variable image elements.
- a device 16 for generating optically variable image elements.
- such a device can be provided several times in succession in the machine 01.
- the device 16 is inserted or can be inserted into the transport path of the machine 01 to be equipped with interfaces on the input and output sides to corresponding interfaces of a conveyor system that continues upstream and downstream.
- the alignment device 07 described in detail below is basically arbitrary in its designs, variants or configurations, but is preferably provided or can be provided in a machine 01 or printing press 01 described above.
- the alignment device 07 for forming optically variable image elements 03 e.g. for forming the optically variable effect in the optically variable coating agent 06 previously applied - e.g. in the form of print image elements 08 - to the substrate 02, in particular to the printing material 02, comprises a defined transport path along which the substrate 02 to be conveyed by the alignment device 07 is brought into operative connection in a defined manner from an input area in which the substrate 02 to be treated and having optically variable coating agent 06 on its first side is fed or can be fed, with an alignment device 26 which comprises elements 24 providing magnetic fields as active elements 24, in short magnetic elements 24, preferably in such a way that the magnetic elements 24 of the alignment device 26 serving for image-forming alignment and the printing material 02 printed with the printing ink 06 containing the particles P move synchronously with each other at least on a section of the transport path.
- the alignment device 26 is designed here as a magnetically effective cylinder 26, or magnetic cylinder 26 for short, which has an arrangement of magnetic elements 24 on the circumference and via which the printing material 02 is
- the magnetic elements 24 can be formed directly by single-part or multi-part magnets 27 themselves, or preferably comprise one or more magnets 27 which is or are arranged - preferably detachably - in or on a holder 28, e.g. on or in a base 28.
- Magnets 27 are generally understood here to be magnetically effective devices which permanently or switchably create a magnetic field at least towards the side of the transport path - in particular one which is sufficiently strong for the alignment of particles P contained in the coating agent 06 on the substrate 02 guided over it as described here.
- the magnets 27 can be formed by one or more permanent magnets with or without engraving, by electromagnets or by combinations of one or more permanent and/or one or more electromagnets.
- magnet 27 is also understood to mean a plurality of magnets 27 assigned to the same magnetic element 24 and which as a whole form a magnetic unit, unless explicitly stated otherwise.
- the magnetic element 24 is also intended to include designs with a plurality of one-part or multi-part magnets 27 contained within the magnetic element 24 and spaced apart from one another, as can be used, for example, in the case that the same panel 09 is to be subjected to a respective magnetic field at two different points.
- Such a magnet 27 or an arrangement of a plurality of magnets 27 of a same magnetic element 24 can be accommodated in a housing 38 of the magnetic element 24, which is arranged, for example, in or on the holder 28 so as to be detachable from the holder 28.
- two such magnetic cylinders 26 can also be provided in the transport path, which are arranged on the same or on different sides of a substrate 02 to be conveyed along the transport path.
- the alignment device 07 is assigned a drying and/or curing device 19, e.g. a radiation dryer 19, in particular UV radiation dryer 19, or UV dryer 19 for short, which is preferably designed as a UV-LED dryer 19 and/or is directed at a point in the transport path at which the substrate 02 interacts with the magnetic cylinder 26.
- a drying and/or curing device 19 e.g. a radiation dryer 19, in particular UV radiation dryer 19, or UV dryer 19 for short, which is preferably designed as a UV-LED dryer 19 and/or is directed at a point in the transport path at which the substrate 02 interacts with the magnetic cylinder 26.
- the magnetic cylinder 26 is preferably arranged on the second side of the substrate 02 to be conveyed in the transport path thereof, so that its first side, which is coated inline with optically variable coating agent 06 in particular upstream, faces outwards when passing the magnetic cylinder 26, in particular when being transported over the magnetic cylinder 26.
- the magnetic cylinder 26 comprises a single-part or preferably multi-part cylinder body 29, on or on which the magnetic elements 24 are arranged, preferably detachably.
- the single-part or preferably multi-part cylinder body 29 can be or is mounted rotatably in a frame.
- the term cylinder body 29 is intended to include both closed structures, i.e. with a more or less closed cylinder surface, and open structures, i.e. scaffolding or frame-like structures such as the example presented in Fig. 4.
- the magnetic cylinder 26 has, in the region of the side facing the substrate path, e.g. in the region of the outer circumference, in particular in the region of an outer cylindrical envelope surface of the cylinder body 29, the plurality of magnetic elements 24 which are used to orient at least some of the magnetic or magnetizable particles P of the coating agent 06 applied to the passing printing material 02. serve.
- magnetic elements 24 are provided in a matrix-like manner on the outer circumference. They are preferably arranged in such a way that for each column or group an equal number n of magnetic elements 24 is provided on the circumference and arranged in rows running parallel to the axis and/or in particular in such a way that when developed on the substrate 02 - assuming a correct register between the substrate position in the transport direction T and the cylinder angular position - they correspond to the pattern of the image elements 03 on the substrate 02 to be exposed to magnetic fields.
- the arrangement in rows or columns should also be understood to mean the corresponding grid or matrix-like arrangement in the event that they are partially offset from one another in the axially parallel direction for correction or adjustment purposes.
- magnetic elements 24 of the columns or groups arranged one behind the other are then arranged one behind the other in the circumferential direction, for example, at least in such a way that they at least overlap when unrolling along a circular circumferential line and/or come to lie in the slots 09 of the same column of a substrate 02 to be treated, even if they are partially offset from one another slightly for correction or adjustment purposes.
- an alignment or orientation of particles P in the area of the image elements 03 provided on the blank 09 can be effected by means of the magnetic elements 24, in this case for example through the substrate 02.
- the number m of columns or groups is, for example, four to eight, in particular five and seven, e.g. six, and/or the number n of magnetic elements 24 in a column or group is, for example, two to twelve, advantageously five to ten.
- the magnetic cylinder 26 or its cylinder body 29 is preferably designed such that the number m of columns or groups and/or the number n of rows or of magnetic elements 24 arranged one behind the other in a column or group - for example within the above-mentioned limits - can be varied in order to adapt them to different requirements.
- the magnetic elements 24 - preferably in or on a corresponding holder 28 together with the latter - are arranged or can be arranged on the cylinder 26 in such a detachable manner that, in the assembled state, they can be arranged at a defined location on the circumference of the cylinder 26 and preferably completely removable from the cylinder 26 and/or positioned on the circumference of the cylinder 26 in the axial and/or circumferential direction.
- magnetic elements 24 can be arranged and mounted on or in a cylinder body 29 in such a way that they are mounted on or in the cylinder body 29 in a variable manner, at least relative to other magnetic elements 24 of the same column or group of magnetic elements 24, in their axial position relative to the single- or multi-part cylinder body 29.
- This can be realized, for example, via axially extending guides on the circumference of the cylinder body 29, in or on which the relevant Magnetic elements 24 are mounted directly or indirectly and can be moved into different axial positions.
- Such guides could in principle be provided individually for individual magnetic elements 24 of a row (see, for example, the design according to Fig. 11), but possibly also continuously for several or all magnetic elements 24 of the same row. In this case, the guides could be provided on the above-mentioned axially extending support elements that support all magnetic elements 24 of the same row.
- the magnetic elements 24 of a respective row or preferably of a respective column - if necessary in addition to an independent axial and/or circumferential positioning of individual or all magnetic elements 24 of the row or column as a whole and independently of an adjacent row or column, in the case of the row with respect to its position in the circumferential direction and in the case of the column as a group with respect to its axial position on the magnetic cylinder 26 or on the cylinder body 29, as explained in more detail below.
- a row combined as a group which is not shown here, in particular several, preferably the magnetic elements 24 of all rows, are combined row by row as groups that can be positioned together in the circumferential direction, for example on axially running support elements.
- the magnetic elements 24 can be arranged - directly or indirectly - in or on several, e.g. a number m of e.g. four to eight, in particular five to seven, e.g. six, axially spaced apart and preferably partially or entirely in the axial direction on a cylinder inner body 32, in particular an axially extending cylinder shaft 32, in short shaft 32, positionable, preferably ring-shaped Support elements 31, e.g. here ring elements 31, can be arranged or can be arranged, wherein in or on these ring elements 31 in turn several, e.g.
- magnetic elements 24 are arranged or can be arranged one behind the other in the circumferential direction and preferably at least partially or completely positionable in the circumferential direction (see e.g. Fig. 4 and Fig. 5).
- the magnetic cylinder 26 can be designed without any holding means acting on the substrate 02 and, for example, with ring elements 31 that are closed in the circumferential direction.
- holding means 33 e.g. grippers 33 of a so-called gripper bar
- a magnetic cylinder 26 designed in this way also serves to transport the substrate 02.
- the ring elements 31 are interrupted in the circumferential direction, for example as can be seen in Fig. 4 and Fig.
- ring-like support elements or “ring elements” should also be used here to include non-closed, i.e. ring segment-like elements.
- any fastening means used for fastening - as shown, for example, in connection with an embodiment according to Figs. 15 to 18 and also applicable to the embodiments from Figs. 1 to 14 - are not shown further.
- individual structural units 36 which are positioned or positionable in a matrix-like manner in columns and rows on or in the cylinder body 29 in the above sense, are provided for several or all of the magnetic elements 24, hereinafter also referred to as active units 36, in particular magnetic unit 36, which each comprise at least one magnetic element 24 and at least one suction element 34.
- the device 07 for aligning magnetic or magnetizable particles P in several, preferably in all of the m columns of magnetic elements 24, several, in particular all of the magnetic elements 24 arranged one behind the other are combined with at least one associated suction element 34 in respective structural units 36 as active units 36 and as such can be positioned in the circumferential direction as a whole and independently of all other such active units 36 and/or detached from the cylinder 26.
- the active units 36 each comprise a magnetic element carrier 37, on or in which the magnetic element 24 is arranged on its outward-facing side.
- the at least one suction element 34 can be integrated into the magnetic element carrier 37 as part of the latter or arranged on the latter as a separate part.
- the active unit 36 preferably comprises at least one suction element 34 on each side of the magnetic element 24 - viewed in the axial direction of the cylinder 26.
- the respective suction element 34 comprises a plurality of suction openings 42 in the surface directed outwards, i.e. outside the cylinder 26 and/or at the level of the cylinder envelope, which are provided, for example, in a cover element 41 covering a suction air channel 39 (see e.g. Fig.
- a channel arrangement leads from the respective suction air channel 39 through the active unit 36 to a bottom-side line interface 43, which is formed, for example, by at least one recess 43 open towards the inside of the cylinder (see, for example, Fig. 11) in a bottom of the active unit 36 facing the inside of the cylinder. Air can be sucked in from the suction openings 42 connected via the channel arrangement and the suction air channel 39 through this at least one recess 43 or the line interface 43 formed here and assigned to the active unit 36.
- the active units 36 can in principle be in an embodiment not shown be arranged or can be arranged in a matrix-like manner directly or indirectly on a cylindrical outer surface 44 of the axially running cylinder inner body 32, in particular the shaft 32.
- This or these has, for example, on a longitudinal section that directly or indirectly supports the magnetic elements 24, suction air openings 46 directed radially outwards as line interfaces 46 that carry suction air, which are connected, for example, via radially running passages 47, e.g. bores 47, to a channel 48, e.g. suction air channel 48, that runs axially in the shaft 32 and is to be supplied with suction air from at least one cylinder end.
- the active units 36 are or are to be arranged in a matrix-like manner directly, i.e. immediately on the above-mentioned jacket surface 44 of the axially running cylinder inner body 32 or the shaft 32, the active units 36 are or will be positioned on the jacket surface 44 in such a way that the line interface 43 on the base of the active unit 36, here e.g. the free cross section of the above-mentioned recess 43 in the base of the respective active unit 36, overlaps with at least one of the line interfaces 43 formed by e.g. suction air openings 46 in the shaft 32.
- the above-mentioned recess 43 here forms e.g. B.
- the air is sucked in from the suction openings 42 in the relevant suction element 34 via the suction air channel 39 and the channel arrangement, via the line interface 43 of the active unit 36 formed e.g. by the recess 43 and at least one suction air opening 46 of the inner cylinder body 32 as well as the suction air channel 48.
- suitable fastening means e.g. in the form of clamp or screw connections, must be provided, by means of which the respective active unit 36 can be fixed to the jacket surface 44.
- the active units 36 however, not arranged or arrangable directly on the section of the cylinder inner body 32 or the shaft 32 having the suction air openings 46, but several or preferably all of the active units 36 provided for a respective column as a group on or on a support element 31 already mentioned above, in particular a ring-like support element 31, e.g. ring element 31, wherein advantageously at least the support elements 31 on both sides that are outermost, but preferably all of the support elements 31 that carry the respective group or column of active units 36 on the cylinder inner body 32 or the shaft 32 can be varied in their axial position.
- the preferably ring-like support elements 31 or ring elements 31 have line interfaces 49; 51 assigned to the respective support element 31 on the side facing inwards, i.e. in the assembled state towards the cylinder inner body 32 or the shaft 32, and on an outward-facing side, as well as a channel arrangement which connects one or more of the inside line interfaces 49 to one or more of the outside line interfaces 51 for the passage of suction air.
- recesses 49 are provided as line interfaces 49 in a wall 52 facing towards the inside of the cylinder, which are each connected via one or more channels 53 running in the ring element 31 to passages 54, e.g. bores 54, leading through the support element 31 to outside line interfaces 51 and e.g.
- the openings of individual bores 54 could also simultaneously represent the outwardly effective line interfaces 51, one or in particular several of the bores 54 preferably also lead on the outside into a recess 51 in the outward-facing wall 56 of the support element 31, which forms the outer line interface 51, for example.
- the ring element 31 can have segmentally separated Line connections between one or more inner line interfaces 49 and one or more outer line interfaces 51, in particular in radially opposite circumferential sections, so that the application of negative pressure to one or more inner line interfaces 49 in a segment 45 only requires the presence of a negative pressure at one or more outer line interfaces 51 assigned to the same segment 45, in particular independently of the application of one or more inner line interfaces 49 of another or adjacent segment 45.
- direct line connections between inner and outer line interfaces 49; 51 can be provided or - as shown in Fig.
- segments 45 assigned to the segments 45, which are separated from one another by walls running between the outer wall 56 and the inner wall 52 of the ring element 31.
- Segments 45 or chambers 55 formed in this way can extend over a smaller or larger section in the circumferential direction depending on the desired gradation and/or comprise one or more inner and/or outer line interfaces 49; 51 provided one behind the other in the circumferential direction.
- the application of negative pressure or suction air in a specific segment 45 then results in suction through suction openings 42 in a corresponding angle segment A x on the circumference of the cylinder 26.
- the ring elements 31 are or will be positioned, for example, on the casing surface 44 in such a way that the respective line interfaces 49 on the inside of the ring element 31, here, for example, the free cross section of the above-mentioned recess 49, overlap with at least one of the suction air openings 46 in the shaft 32 or the cylinder inner body 32.
- the above-mentioned recess 49 forms, for example, a chamber 49 delimited on the bottom side by the casing surface 44, with a surface of the inward-facing wall 52 of the ring element 31 lying outside the recess 49 on the inward-facing side of the ring element 31 forming a sealing surface that seals the chamber 49 with an opposite region of the casing surface 44.
- the active units 36 are positioned in particular on the outward-facing side of the ring element 31 in such a way that the line interface 43 on the base of the active unit 36, here for example the free cross-section of the above-mentioned recess 43 in the base of the active unit 36 in question, overlaps with at least one of the outer line interfaces 51 on the outward-facing side of the ring element 31.
- the recess 43 here forms for example a chamber 43 delimited on the base side by the outer wall 56, with the wall completely surrounding the recess 43 in the foot region of the active unit 36 forming a sealing surface that seals off the chamber 43 with an opposite region of the wall 56 of the support element 31.
- the air is sucked in from the suction openings 42 in the relevant suction element 34 via the suction air duct 39 and the duct arrangement via which for example the air is sucked in.
- a suction air source is understood to be any type of air pressure sink which, via a corresponding line connection to suction openings 42, creates a pressure that is lower than the ambient pressure, i.e. a negative pressure at the relevant suction openings 42.
- This can be e.g. a vacuum pump or possibly a container subjected to negative pressure.
- the respective pattern of the suction air openings 46 or line interfaces 46 on the cylinder inner body 32 and the position and shape of the interacting line interface(s) 43 or recess(es) 43 in the base area of the active unit 36 in connection with the first above-mentioned variant (without support element 31) are preferably coordinated with one another in such a way that a continuous positioning of the active unit 36 in the circumferential direction over at least one adjustment range of two suction air openings 46 on the shaft 32 spaced apart in the circumferential direction is thereby achieved.
- the respective pattern of the suction air openings 46 or line interfaces 46 on the inner cylinder body 32 and the position and shape of the interacting line interface(s) 49 or recess(es) 49 on the inside of the support element 31 as well as the position and shape of the interacting line interfaces 51; 43 or recesses 51; 43 on the outside of the support element 31 on the one hand and in the base area of the active unit 36 on the other hand in connection with the second variant (comprising the support elements 31) are preferably coordinated with one another in such a way that in the circumferential direction a continuous positioning of the active unit 36 in the second variant over an adjustment range of at least two line interfaces 51 or
- Recesses 51 on the outside of the support element 31 is made possible by the fact that at least one line interface 51 or recess 51 on the outside of the support element 31 is completely covered by the underside of the active unit 36, while at the same time the opening cross-section of the at least one line interface 51 or recess 51 on the outside of the support element 31 at least partially overlaps with the bottom-side line interface 43 or recess 43 of the active unit 36.
- line interfaces 46; 51 are provided at more points in the axial direction of the cylinder inner body 32 and/or in the circumferential direction on the support elements 31 than would be necessary for a single specific operational configuration.
- closure means 57; 58 are provided, by means of which passages 47; 54 on the cylinder inner body 32 and/or on the outer circumference of the support element 31 that supply the line interfaces 46; 51 that are not covered by the active units 36 or the support elements 31 can be optionally closed. In the simplest case, this can be a type of plug that is inserted into the relevant passages 47; 54 for closing and can be removed from them again if necessary.
- closure means 57; 58 designed as valves 57; 58 are provided in the passages 47 and 54 that can be closed optionally, which are or can be brought into the closed position in passages 47 and 54 of passages 47 and 54 that are not or only partially covered directly by active units 36 or by support elements 31, while at least some of the passages 47 and 54 of line interfaces 46; 51 that are completely covered by active units 36 or by support elements 31 are or can be brought into a pass-through position.
- a preferred embodiment of such a closure means 57; 58 is designed in the form of a valve 57; 58 which can be brought into a through position and a closed position as desired - without it having to be removed or inserted.
- the passages 47; 54 which are designed in particular as bores 47; 54, are in line connection with the channels 48 and 53 of the inner cylinder body 32 or the support element 31 on the suction side only on one side of the clear cross-section.
- the valve 57; 58 is formed, for example, in a particularly advantageous embodiment by a sleeve 57; 58 which has a recess 61 in the lateral wall 62 on one side, which in a rotational position representing a through position opens the way into the channel 48; 53, while in another rotational position it releases the connection to the relevant channel 47; 54.
- the sleeve-like valve 57; 58 has, e.g. at least in a section that is further out in the assembled state, an actuation interface 63 that can be brought into engagement with a tool 59, via which the valve 57; 58 - in particular without having to be removed - can be rotated by the corresponding tool 59 between the passage and closure positions.
- a polygonal key 59 and an inner peripheral section 63 in the sleeve 57; 58 designed as an internal polygon 63 are used here, for example.
- a support element 66 is provided between each two columns or groups of construction or active units 36, which has a support surface 67; 68 at the level of the cylinder envelope for supporting the substrate 02 conveyed via the cylinder 26.
- the support surface 67 can be the outward-facing cylindrical surface 67 of a circular ring-shaped support disk 64 or the outward-facing surface 68 of a support plate 71 arranged on a support disk 69, e.g. made of plastic or metal.
- the term "circular ring-shaped” or “ring-like” is also intended to include a support disk 69 that is not completely closed in its circumference, i.e. that is like a circular ring segment.
- the magnetic elements 24 or a magnetic element carrier 37 carrying the magnetic elements 24, viewed in the axial direction comprise at least one clamping element 72; 73 on both sides, e.g. a clamping lever 72; 73, the ends of which are effective for clamping each have a circumferentially extending and inwardly directed projection on the respective end face of the ring-like support element 31, i.e.
- this stop surface 74; 77 can be an inward-facing surface of a groove 76; 78 running in the circumferential direction on the front side of the support element 31, into which the clamping element 72; 73 engages with its effective end, e.g. claw-like or clamp-like.
- the stop surface 74; 77 or groove 76; 78 running in the circumferential direction should not only be a stop surface 74; 77 or groove 76; 78 that preferably runs over the entire circumference or, as shown, the relevant circular arc section, but also a possibly interrupted stop surface 74; 77 or groove 76; 78 that continues in several circular arc sections.
- the latter can, however, limit the variability of the positioning in the circumferential direction.
- an "inward" directed surface is also to be understood as including surfaces that are inclined towards it, the surface vector of which is directed into the cylinder interior, but preferably as a circumferential surface focused on the same point on the cylinder axis line for each end face, and thus offers the clamping element 72; 73 a stop that prevents radial removal.
- two clamping elements 72; 73 spaced apart from one another in the circumferential direction or one clamping element 72; 73 with two claws that interact with the support element 31 at a distance from one another are provided on each side.
- the clamping element 72; 73 could in principle also be designed as a one-armed lever 72; 73, it is preferably designed in the form of a two-armed lever 72; 73 that can be pivoted about an axis 81, e.g. pivot axis 81, mounted on the magnetic element 24 or its holder 28 or a structural unit 36 comprising the magnetic element 24, the lever arm of which is closer to the center of the cylinder having the part that interacts with the stop surface 74; 77, e.g. claw-like or clamp-like part, and the lever arm further out serves for actuation.
- the clamping element 72; 73 is preferably self-locking, e.g.
- a spring element 79 in particular a compression spring 79, acting between the lever 72; 73, in particular the lever arm located further out, and the magnetic element 24 or the holder 28 or the structural unit 36, spring-loaded in such a way that it is in the clamping position in the resting state, ie without actuation, and holds the magnetic element 24 or the holder 38 or the structural unit 36 on the support element 31.
- the fastening device described offers particular advantages together with an assembly aid 97 described in more detail below.
- an optionally provided line 84 is shown or indicated which, in the event that the magnet 27 in the magnetic element 24 is designed to be rotatable by a motor, supplies the motor with signals and/or with electrical energy.
- respective columns of imaging printing subjects 18 running in the circumferential direction of the forme cylinder 14 relate to a same column of imaging printing subjects 18 provided one after the other on the substrate 02. to be provided panel 09.
- These panels 09 are ideally aligned with one another along the transport direction T and have a uniform width. In cases deviating from this, for example if a trapezoidal deformation of the substrate 02, which may already have been printed in the pattern of the panels 09, has occurred in an upstream process or due to other mechanical or physical stress, such a changed geometry can be counteracted by a correspondingly varied arrangement of the print subjects 18 on the forme cylinder 14.
- the print subjects 18 of individual columns are not strictly aligned with one another in the circumferential direction, for example, but rather lie partly on helical lines that are slightly inclined against the circumferential line (e.g. shown exaggerated in Fig. 3 for better perception).
- the width of the panels 09 on the substrate 02 increases, for example, from the leading to the trailing end of the substrate section or substrate sheet 02 or - e.g. B. with corresponding reversed feed at the entrance to the printing machine 01 - possibly vice versa.
- At least one of the magnetic elements 24 is mounted in at least several, preferably in all of the circumferentially extending columns or groups of magnetic elements 24, independently of at least one other magnetic element 24 of the same column or group, at least in the axial direction, adjustably or movably, directly or indirectly on the cylinder body 29 of the magnetic cylinder 26.
- the magnet elements 24 provided one behind the other in the same column are mounted on or on an above-mentioned common support element 31 and can be varied together with this and independently of an adjacent group with regard to their axial position in or on the cylinder 26, wherein in addition to this, the at least two or preferably all of the magnet elements 24 of this or preferably each column are arranged on respective magnet element carriers 37 that can be positioned independently of one another in the circumferential direction on the common support element 31 and/or detachable from the support element 31 and are mounted on the respective magnet element carrier 37 so as to be adjustable in the axial direction within an adjustment range, e.g. of a total of at least 1 mm, preferably at least 2 mm.
- an adjustment range e.g. of a total of at least 1 mm, preferably at least 2 mm.
- the axially movable magnet 27 or the holder 28 is thus carried indirectly via the associated magnetic element carrier 37, which carries the respective, at least axially movable magnetic element 24 and preferably itself in Circumferential direction can be variably positioned on the ring element 31.
- the respective magnetic element 24 or the holder 28 is fastened in or on the magnetic element carrier 37 or its holder 28 by means of a fastening means 83, e.g. a screw 83, in such a way that after at least partially loosening the fastening, e.g. by at least partially loosening the screw 83 using an appropriate tool, the magnetic element 24 or the holder 28 is released to such an extent that it can be moved axially - at least within a relevant adjustment range on the magnetic element carrier 37.
- the fastening means 83 e.g. designed as a screw 83, can be reached, for example, through a recess designed as an elongated hole 82 in a base region of the holder 28 receiving the magnetic element 24 after the magnetic element 24 has been removed.
- a movement or positioning of the magnetic element 24 or of the holder 28 encompassed by it in the axial direction is preferably carried out - in contrast to, for example, a purely manual and/or tool-free movement - via mechanical actuating means 86, 87, 89, in particular comprising a gear.
- the eccentric 86 preferably runs with its axis of rotation radially to the cylinder 26 and/or can be actuated directly or indirectly from the cylinder side facing outwards.
- a shaft 89 which encloses the eccentric 86 or continues outwards has an actuation interface 88, e.g. a polygon socket 88, in the area of its outward-facing end, which can be actuated, in particular pivoted, by means of a corresponding tool, here e.g. a polygon key.
- a tangential position or a position parallel to the tangent is also conceivable, in which case it can then be actuated, for example, from a side facing in the circumferential direction or from the outside via a corner gear.
- At least two magnetic elements 24 provided one behind the other in the same column are arranged on or in different magnetic element carriers 37 that can be positioned independently of one another in the circumferential direction on the cylinder 26, wherein the at least two, in particular all, magnetic elements 24 arranged on the respective magnetic element carriers 37 are mounted so as to be adjustable in the circumferential direction relative to the magnetic element carrier 37 carrying the magnetic element 24 within an adjustment range, e.g. of a total of at least 1 mm, preferably at least 2 mm. This preferably applies to at least two or all of the magnetic elements 24 in all columns.
- a movement or positioning of the magnetic element 24 or of the holder 28 encompassed by it in the circumferential direction is carried out here - in contrast to, for example, a purely manual and/or tool-free movement - preferably via mechanical actuating means 91, 92, 94, in particular comprising a gear.
- a setting or an adjusting movement in the circumferential direction should be understood not only as a movement on a circular arc-like path but also explicitly as a movement along a straight-line path running tangentially or parallel to the tangent on the circumference - over the relevant adjusting range. Since this is usually a very small relevant adjusting range compared to the cylinder diameter, the linear adjusting path does not usually lead to unacceptably large imaging errors.
- an assembly aid 97 already mentioned above is provided, which can be placed on the magnetic element 24 or a magnetic element carrier 37 carrying the magnetic element 24 or a structural unit 36 comprising the magnetic element 24 and by means of which the clamping fit or a Clamping connection between the clamping elements 72; 73 on both sides and the support element 31 is releasable.
- the clamping by the assembly aid 97 or a drive means 102 included in the assembly means 97, in particular a drive means 102 that can be operated manually is not only releasable and openable in such a way that the magnetic element 24 or the structural unit 36 comprising it can be removed from the support element 31, but can also be released in an intermediate position in the strength or degree of opening of the clamping so that the magnetic element 24 or the structural unit 36 is not yet completely free, but can be positioned overall in the circumferential direction on the support element 31.
- the degree of opening can be set just so that there is still contact between the clamping elements 72; 73, but positioning is possible by overcoming any slight frictional forces that may still exist.
- a second bushing 101 which is mounted so as to be twisted against the first part 99 but axially movable and supports the actuating arm 98 on the other side, as well as a screw drive formed inside, by means of which a non- shown, and e.g. via a manual actuation interface 103, such as a rotary handle 103, rotatable threaded spindle on the one hand and an internal thread on the other of the two parts 99; 101 of the drive means 102, the parts carrying the actuation arms 98 can be moved apart and towards each other.
- a manual actuation interface 103 such as a rotary handle 103, rotatable threaded spindle on the one hand and an internal thread on the other of the two parts 99; 101 of the drive means 102, the parts carrying the actuation arms 98 can be moved apart and towards each other.
- the magnetic elements 24 of several or all columns are provided as a respective group on or on a respective support element 31.
- the respective support element 31 is explicitly designed here as a ring-segment-like support element 31, i.e. a ring-like support element 31 interrupted over a circumferential section or intermediate angle, and has a leading and trailing end 106; 107 with respect to a production direction of rotation D.
- the production direction of rotation D is defined, for example, by the arrangement of a gripper bar already mentioned above, which has grippers 33 at the leading end 106 of the segment-like ring element 31 that open and close during operation to pick up a substrate sheet 02.
- Such a safeguard can be implemented, for example, by corresponding deviations of the inner circumferential line of the ring element 31 and the outer circumferential line of the inner cylinder body 32 which are effective as stop pairs.
- a so-called fitting element 112 also commonly referred to as a feather key 112 which is made, for example, from a plastic material.
- B anchored in the outer surface of the cylinder inner body 32 and interacts with a recess, in particular a groove, in the clamping bar 111 or vice versa.
- a fitting element 112 with a correspondingly interacting recess is advantageous in such a way that the cylinder inner body 32 can be easily fitted with the clamping bar 111 radially.
- fastening means (not shown), e.g. screws, can be provided by means of which the clamping bar 111 can be radially attached to the cylinder inner body 32.
- the clamping bar 111 can then be removed from the cylinder inner body 32 in the relaxed, i.e. force-free, state of the clamping device 108 immediately or after the release of the above-mentioned fastening means with the support element 31 still remaining on the cylinder inner body 32 or can be inserted onto the cylinder inner body 32 in the region of the interruption with the ring element 31 already positioned on the cylinder inner body 32.
- the clamping device 108 engages at one of the ends 107; 106, preferably at the trailing end 107, statically, ie in a fixed Relative circumferential position between the clamping bar 111 and the relevant end 107; 106, and at the other, preferably the leading end 106, via the adjusting means 109, i.e. in a variable relative circumferential position between the clamping bar 111 and the relevant other end 106; 107.
- a respective clamping bar 111 and/or a respective associated clamping means 116 can be provided for each ring element 31 to be fastened.
- a clamping bar 111 extending in the axial direction of the cylinder 26 over several or all of the support elements 31 arranged on the cylinder inner body 32 and/or a clamping means 116 extending in the axial direction of the cylinder 26 over several or all of the support elements 31 arranged on the cylinder inner body 32 is provided.
- adjusting means 109 or screw drives 113, 114 to be allocated to a ring element 31.
- the angle segments A x in the cylinder 26, which can be subjected to negative pressure or suction air, can be subjected to negative pressure or suction air, e.g. through separate line paths.
- This can be achieved, for example, by means of a structure that is correspondingly segmented in the circumferential direction for the passage of the suction air, e.g. in an advantageous embodiment with individual segments 45 for the segmented passage of suction air, for example in an above embodiment with groups of suction openings opening into separate chambers 55.
- the latter is or can be connected on the suction side via corresponding line paths to the suction air source or air pressure sink and is arranged off-center in such a way that, by relatively rotating the rotor 124 and stator 126 about the axis of rotation of the cylinder 26 or an axis coinciding with the axis of rotation of the cylinder 26, they can be at least temporarily brought into at least partial alignment with each of the channel openings 127 of the angle segments A x or segments 45 to which suction air is to be supplied.
- the suction openings 42 in the relevant angle segment A x or corresponding segment 45 are or can be supplied with suction air or negative pressure.
- adjusting means 136, 141 are provided, e.g. an adjusting shaft 136, for example in the form of a hollow shaft 136 or sleeve 136, which is connected in a rotationally fixed manner to the stator 126 or the first stator part 131, and an adjusting lever 141, via which, for example, the adjusting shaft 136 can be pivoted.
- an adjusting shaft 136 for example in the form of a hollow shaft 136 or sleeve 136, which is connected in a rotationally fixed manner to the stator 126 or the first stator part 131, and an adjusting lever 141, via which, for example, the adjusting shaft 136 can be pivoted.
- > or the active rotation angle phase can be varied in the manner described above, in which openings are subjected to negative pressure or suction air when the cylinder 26 rotates.
- a pointer 148 connected to the adjusting lever 141 can be provided, which interacts with a set scale 149.
- the passage of the suction air can, for example, be through the hollow shaft 136 designed adjusting shaft 139.
- a clamping element 144 for example in the form of a screw nipple, can be provided, by means of which the adjusting lever 141 can optionally be secured against adjustment.
- a fixed sleeve can be provided between the two adjusting shafts 136; 137 for their mounting.
- the cylinder 26 is accommodated, for example, in one or more bearing shells 151, which are rotatably mounted in the side frame via a radial bearing (not visible here), wherein the rotor 124 (see, for example, Fig. 4 or Fig. 15) and the stator 126 (see, for example, Fig. 19 or Fig. 20) interact at the front in the manner described above to pass the suction air.
- the machine 01 can be designed in the above manner with, for example, a magnetic cylinder 26 designed in the above manner.
- inspection cylinder 152 can be designed with a suction opening 42 or groups of suction openings 42 in the above-mentioned embodiment, which are only connected to the suction air source or air pressure sink while passing through or over an above-mentioned active rotation angle phase, i.e. a defined or definable angle range around the rotation axis of the cylinder 26 of less than 360°, wherein the rotation angle phase can preferably be varied in its position and/or size in the circumferential direction in the manner described above using the example of the magnetic cylinder 26. All of these cylinders 26; 17; 152 have in common that they are part of a device that acts on the substrate sheet 02 or inspects the substrate sheet 02 and require a particularly secure support and optimized sheet transfer behavior.
- active rotation angle phase i.e. a defined or definable angle range around the rotation axis of the cylinder 26 of less than 360°
- the rotation angle phase can preferably be varied in its position and/or size in the circumferential direction in the manner described above using the example
- such a rotary feedthrough 123 is provided on each end face of the cylinder 26; 17; 152; 12 in order to be able to apply or apply negative pressure to the relevant suction openings 42 or groups of suction openings 42 from both sides in the active rotation angle phase.
- the chambers 55 can be applied from both sides or can be divided in the axial direction and applied with negative pressure separately.
- clamping element clamping lever, lever
- clamping element clamping lever, lever
- Control shaft hollow shaft, sleeve
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Feeding Of Articles By Means Other Than Belts Or Rollers (AREA)
- Screen Printers (AREA)
- Rotary Presses (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102022127807.7A DE102022127807A1 (de) | 2022-10-21 | 2022-10-21 | Zylinder für eine bogenbe- und/oder verarbeitenden Maschine mit Saugluftöffnungen sowie Maschine zur Be- und/oder Verarbeitung bogenförmigen Substrates mit einem solchen Zylinder |
| PCT/EP2023/071447 WO2024083377A1 (de) | 2022-10-21 | 2023-08-02 | Zylinder für eine bogenbe- und/oder verarbeitenden maschine mit saugluftöffnungen sowie maschine zur be- und/oder verarbeitung bogenförmigen substrates mit einem solchen zylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4496710A1 true EP4496710A1 (de) | 2025-01-29 |
Family
ID=87576023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP23755022.3A Pending EP4496710A1 (de) | 2022-10-21 | 2023-08-02 | Zylinder für eine bogenbe- und/oder verarbeitenden maschine mit saugluftöffnungen sowie maschine zur be- und/oder verarbeitung bogenförmigen substrates mit einem solchen zylinder |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US12384144B2 (de) |
| EP (1) | EP4496710A1 (de) |
| JP (1) | JP7678239B1 (de) |
| CN (1) | CN119173395A (de) |
| DE (1) | DE102022127807A1 (de) |
| WO (1) | WO2024083377A1 (de) |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH467713A (de) * | 1968-04-19 | 1969-01-31 | De La Rue Giori Sa | Mit Saugluft arbeitende Transportvorrichtung für blattförmige Objekte |
| JPH0653143U (ja) * | 1993-01-05 | 1994-07-19 | 東京航空計器株式会社 | 印刷機の紙尻緊張装置 |
| EP0981443B1 (de) * | 1997-05-14 | 2001-07-18 | Koenig & Bauer Aktiengesellschaft | Antrieb für ein rotierendes bauteil einer rotationsdruckmaschine |
| US6539829B1 (en) * | 1999-06-03 | 2003-04-01 | C. G. Bretting Manufacturing Company, Inc. | Rotary valve assembly and method |
| US20080148974A1 (en) * | 2006-12-22 | 2008-06-26 | Heidelberger Druckmaschinen Ag | Printing Press with Printing Plate Manipulation Device |
| EP1961559A1 (de) * | 2007-02-20 | 2008-08-27 | Kba-Giori S.A. | Zylinderkörper zur Ausrichtung von Magnetspänen eines auf einem blatt- oder bahnförmigen Substrat aufgetragenen Tinten- oder Lackbindemittels |
| DE112012006348B4 (de) * | 2012-05-09 | 2018-09-13 | China Banknote Printing And Minting Corp. | Kombinationsdruckvorrichtung |
| DE102012220401B4 (de) * | 2012-11-09 | 2015-07-02 | Koenig & Bauer Aktiengesellschaft | Bogendruckmaschine mit einer dem Transport eines Druckbogens dienenden Transfertrommel |
| DE102014001969B4 (de) * | 2013-03-11 | 2022-03-24 | Heidelberger Druckmaschinen Ag | Formatumstellung einer Pneumatiktrommel |
| DE102015209695B4 (de) * | 2015-05-27 | 2020-04-16 | Koenig & Bauer Ag | Bogenführungszylinder und Verfahren zur Formatverstellung eines Bogenführungszylinders |
| JP6522188B2 (ja) * | 2018-03-19 | 2019-05-29 | 株式会社小森コーポレーション | 枚葉印刷機 |
| DE102018212428A1 (de) | 2018-07-25 | 2020-01-30 | Koenig & Bauer Ag | Vorrichtung zum Ausrichten von magnetischen oder magnetisierbaren Partikeln, Maschine und Verfahren zur Erzeugung optisch variabler Bildelemente |
| DE102018212429B4 (de) | 2018-07-25 | 2021-12-02 | Koenig & Bauer Ag | Vorrichtung zum Ausrichten von magnetischen oder magnetisierbaren Partikeln, Maschine und Verfahren zur Erzeugung optisch variabler Bildelemente |
| ES2929050T3 (es) * | 2018-07-25 | 2022-11-24 | Koenig & Bauer Ag | Dispositivos para alinear partículas magnéticas o magnetizables, así como máquina para generar elementos de imagen ópticamente variables |
| DE102018127936A1 (de) * | 2018-11-08 | 2020-05-14 | Koenig & Bauer Ag | Vorrichtung, Druckmaschine und Verfahren zur Herstellung eines Sicherheitselementes auf einem Substrat |
| CN112058875B (zh) * | 2020-09-07 | 2023-12-05 | 青海黄河上游水电开发有限责任公司光伏产业技术分公司 | 一种真空吸附辊及吸附方法 |
-
2022
- 2022-10-21 DE DE102022127807.7A patent/DE102022127807A1/de not_active Withdrawn
-
2023
- 2023-08-02 WO PCT/EP2023/071447 patent/WO2024083377A1/de not_active Ceased
- 2023-08-02 EP EP23755022.3A patent/EP4496710A1/de active Pending
- 2023-08-02 US US18/867,821 patent/US12384144B2/en active Active
- 2023-08-02 JP JP2024568350A patent/JP7678239B1/ja active Active
- 2023-08-02 CN CN202380040563.0A patent/CN119173395A/zh active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP2025516030A (ja) | 2025-05-23 |
| US12384144B2 (en) | 2025-08-12 |
| WO2024083377A1 (de) | 2024-04-25 |
| JP7678239B1 (ja) | 2025-05-15 |
| CN119173395A (zh) | 2024-12-20 |
| US20250170817A1 (en) | 2025-05-29 |
| DE102022127807A1 (de) | 2024-05-02 |
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