EP4003615B1 - Machine de traitement dotée d'au moins un dispositif de nettoyage et procédé de nettoyage - Google Patents

Machine de traitement dotée d'au moins un dispositif de nettoyage et procédé de nettoyage Download PDF

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Publication number
EP4003615B1
EP4003615B1 EP20789925.3A EP20789925A EP4003615B1 EP 4003615 B1 EP4003615 B1 EP 4003615B1 EP 20789925 A EP20789925 A EP 20789925A EP 4003615 B1 EP4003615 B1 EP 4003615B1
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EP
European Patent Office
Prior art keywords
substrate
cleaning
cleaning device
printing
processing machine
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.)
Active
Application number
EP20789925.3A
Other languages
German (de)
English (en)
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EP4003615A1 (fr
Inventor
Thorsten Haag
Elena Lang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Koenig and Bauer AG
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Koenig and Bauer AG
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Publication date
Application filed by Koenig and Bauer AG filed Critical Koenig and Bauer AG
Publication of EP4003615A1 publication Critical patent/EP4003615A1/fr
Application granted granted Critical
Publication of EP4003615B1 publication Critical patent/EP4003615B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/20—Cleaning of moving articles, e.g. of moving webs or of objects on a conveyor
    • 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
    • B41F23/002—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing cleaning devices for sheets or webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B1/00—Cleaning by methods involving the use of tools
    • B08B1/10—Cleaning by methods involving the use of tools characterised by the type of cleaning tool
    • B08B1/12—Brushes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B5/00—Cleaning by methods involving the use of air flow or gas flow
    • B08B5/04—Cleaning by suction, with or without auxiliary action
    • B08B5/043—Cleaning travelling work
    • B08B5/046—Cleaning moving webs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B6/00—Cleaning by electrostatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J29/00—Details of, or accessories for, typewriters or selective printing mechanisms not otherwise provided for
    • B41J29/17—Cleaning arrangements

Definitions

  • the invention relates to a processing machine with at least one cleaning device according to the preamble of claim 1 and a method for cleaning according to the preamble of claim 9.
  • a substrate is usually processed in several processing steps.
  • materials with different dimensions are processed as material webs in web processing machines.
  • flexible materials such as cardboard webs or paper webs or rigid materials such as wood or laminate webs are processed.
  • Web processing machines are designed, for example, as punching, cutting, folding, creasing, coating or printing machines.
  • different printing processes are used in printing presses.
  • non-impact printing methods are ionographic methods, magnetographic methods, thermographic methods, electrophotography, laser printing and in particular inkjet printing methods or inkjet printing methods.
  • Such printing methods usually have at least one image-generating device, for example at least one print head.
  • a print head is designed, for example as an inkjet print head, and has at least one and preferably several nozzles, by means of which at least one printing fluid, for example in the form of ink drops, can be transferred to a printing material.
  • Alternative printing methods have solid printing forms, for example gravure printing methods, planographic printing methods, offset printing methods and relief printing methods, in particular flexographic printing methods.
  • a non-impact printing process or a printing process with a solid printing form may be preferable.
  • Material webs for example paper webs
  • the paper rolls contain dust and other foreign bodies such as sand or metal shavings.
  • cleaning devices are used to clean the paper web before processing, in particular printing, for example by cleaning brushes and/or vacuum chambers.
  • a device for cleaning a surface in a printing press is known.
  • the device has a plurality of brushes and is in contact with a printing material for cleaning.
  • the rotary printing machine has a printing material cleaning device with at least one brush and/or at least one suction device.
  • the EP 0 682 992 A2 discloses a cleaning device with compressed air nozzles and suction openings.
  • the cleaning device can be moved from a cleaning position (running position) into a parking position/web threading position (web threading position). In this position, the cleaning device only provides support for the threading of the web. To do this, the cleaning device is moved parallel to the web. It is not a second cleaning position with a second cleaning state.
  • U.S. 2006/0086272 A1 discloses a cleaning device for web cleaning with a suction chamber. Various sections of the suction chamber can be controlled via pressure sensors.
  • the object of the invention is to create a processing machine with at least one cleaning device and a method for cleaning.
  • An advantage that can be achieved with the invention is, in particular, that a distance between a cleaning device and a substrate can be adjusted.
  • the distance and the cleaning position can be adjusted depending on the substrate properties and/or the substrate format and/or a machine speed.
  • the distance between the cleaning device and the substrate can be adjusted in such a way that it is possible to switch between contactless cleaning and cleaning with contact.
  • the substrate surface is protected in this way and the amount of rejects is reduced.
  • a further advantage that can be achieved with the invention consists in particular in the fact that a cleaning device for cleaning the substrate is arranged so that it can be adjusted from a first cleaning position into a further cleaning position.
  • a cleaning position of the cleaning device can be adjusted as a function of the substrate.
  • the number of different substrates to be processed can be increased by an adjustable arrangement of the cleaning device.
  • the number of different cleaning devices can be reduced and a large number of different materials can be processed with just one cleaning device.
  • the maintenance effort is reduced and operating costs of the processing machine are saved.
  • the at least one cleaning device is arranged at a distance from the substrate in the first cleaning position and in contact with the substrate in the further cleaning position is arranged.
  • an adjustment from the first cleaning position to the second cleaning position takes place by moving the cleaning device from a cleaning area with a high force component opposing the suction force to a cleaning area with a lower force component opposing the suction force.
  • an adjustment from the first cleaning position to the second cleaning position takes place by means of a displacement parallel to the transport path of the substrate.
  • Such a cleaning area with a high force component directed counter to the suction force occurs, for example, when a guide element is arranged under the substrate.
  • a cleaning area with a lower force component directed counter to the suction force is present, for example, if the substrate is arranged at a distance from a guide element.
  • Another advantage that can be achieved with the invention is the flexible arrangement of the cleaning device in the processing machine.
  • the cleaning device can be arranged below and/or above the substrate.
  • cleaning of the top and/or bottom of the substrate is possible in this way.
  • Another advantage that can be achieved with the invention is an improved design of the cleaning device.
  • accessibility for maintenance purposes and/or assembly capability of the cleaning device is improved.
  • the improved accessibility and the improved assembly capability are achieved through the adjustable arrangement of the cleaning device.
  • a further advantage that can be achieved with the cleaning device consists in adapting the cleaning performance and/or suction performance to the substrate.
  • a suction power and/or the effective range of the cleaning device can be adapted to the substrate width.
  • Another advantage that can be achieved with the cleaning device is that automatic substrate feed is guaranteed.
  • the distance from a guide element can be achieved by adjusting the cleaning device from a first position to a further position, thus facilitating substrate feed and/or paper feed.
  • the processing machine 01 in particular the web processing machine 01, is preferably embodied as a printing press 01, in particular as a web-fed printing press 01.
  • Printing press 01 is understood here to be at least a machine that applies or is capable of applying printing fluid to a substrate 02, in particular to a printing substrate 02.
  • a printing press 01 preferably has at least one assembly 100 and/or one unit 100, e.g. B. a substrate source 100, in particular a printing material source 100.
  • Printing press 01 more preferably has at least one unit 200 embodied as a first processing unit 200.
  • the processing unit 200 is further preferably configured as a unit 200 and in particular as a first printing unit 200.
  • Printing press 01 also has at least a first drying aid, ie a first aid in a unit 300 and/or a unit 300, in particular a dryer unit 300, for example a first drying aid 301, e.g. B. a first dryer 301 on.
  • Printing press 01 more preferably has at least one assembly 400 and/or unit 400 embodied as a post-processing device 400.
  • Printing machine 01 may have, for example, at least one second printing assembly and, for example, at least one second means that supports drying, ie drying aids, e.g. B. on a second dryer.
  • Printing press 01 is preferred as an inkjet printing press 01 trained.
  • Printing press 01 is preferably embodied as a web-fed printing press 01, more preferably as a web-fed inkjet printing press 01.
  • the printing press 01 can be embodied as a printing press 01 that operates according to the inkjet or inkjet method, in particular as an inkjet printing press 01 and/or as a web-fed inkjet printing press 01.
  • the at least one The first printing unit 200 is preferably embodied as at least one first inkjet printing unit 200.
  • printing assembly 200 is preferably a printing assembly 200 for processing a substrate 02.
  • substrate 02 refers to a sheet-like substrate 02 and/or a web-like substrate 02, in particular substrate web 02.
  • substrate 02 is embodied in particular as printing material 02.
  • the printing material 02 is embodied as a printing material web 02 or sheet 02.
  • the substrate web 02 and/or the printing material web 02 can be a paper web, for example.
  • the sheet-like substrate 02, and in particular the sheet 02, is configured, for example, as corrugated cardboard and/or sheets of corrugated cardboard.
  • the substrate 02 is embodied as a substrate web 02 and the processing machine 01 is embodied as a web processing machine 01.
  • the printing material source 100 is embodied as a roll unwinding device 100.
  • At least substrate 02 is preferably aligned in printing substrate source 100, preferably at least with respect to one edge of this substrate 02.
  • at least one web-type printing substrate 02 i. preferably a paper web 02 unwound from a substrate roll 101, in particular a printing substrate roll 101, and preferably aligned in an axial direction A with respect to its edges.
  • the axial direction A is preferably a direction A which extends parallel to an axis of rotation of a horizontal direction A, in particular a transverse direction A.
  • the transverse direction A is oriented orthogonally to a transport direction T intended for the transport of, in particular, web-type printing substrate 02, and/or orthogonally to an intended transport path of the substrate 02 through the at least one first printing unit 200.
  • the transport direction T is preferably that direction which runs tangentially to a respective reference point, next section and/or point of the intended transport path. This respective reference point is preferably at the point and/or at the component that is related to the transport direction T.
  • the transport path provided for transporting the at least one printing substrate 02, and in particular the printing substrate web 02 runs downstream of the at least one printing substrate source 100, preferably via a plurality of deflection means through the at least one first printing unit 200, where the printing substrate 02 and in particular the printing substrate web 02, preferably by means of at least one Printing ink is provided with a print image on one side.
  • the substrate 02 is preferably a sheet-like material such as paper and/or cardboard and/or cardboard and/or a thin, flexible or solid film. Furthermore, packaging materials with rough surfaces and fabrics can be printed. In particular, the web width is less than the working width of processing machine 01.
  • paper is a flat material consisting essentially of fibers, mostly of vegetable origin, which is formed by draining a fibrous suspension on a sieve. This creates a fiber felt that is then dried.
  • the basis weight of paper is preferably maximum 225 g/m 2 (two hundred and twenty five grams per square meter).
  • cardboard is a flat material consisting essentially of fibers of plant origin, which is formed by dewatering a fibrous suspension on one or between two screens. The fiber structure is compacted and dried.
  • Cardboard is preferably made from cellulose by gluing or pressing together.
  • Cardboard is preferably designed as solid cardboard or corrugated cardboard.
  • the basis weight of paperboard is in excess of 225 g/m 2 (two hundred and twenty five grams per square meter).
  • Corrugated cardboard is cardboard made from one or more layers of corrugated paper glued to one layer or between several layers of another preferably smooth paper or cardboard.
  • cardboard refers to a paper fabric that is preferably coated on one side and has a mass per unit area of at least 150 g/m 2 (one hundred and fifty grams per square meter) and at most 600 g/m 2 (six hundred grams per square meter).
  • Cardboard preferably has high strength relative to paper.
  • the term sheet-shaped substrate 02 in particular a printing material 02, specifically sheet 02, is used here to mean any flat substrate 02 or any substrate 02 that is present in sections, i.e. also substrates 02 that are in the form of panels or plates, i.e. also panels or plates, be included.
  • the sheet-like substrate 02 or sheet 02 defined in this way is formed, for example, from paper or cardboard, ie as a sheet of paper or cardboard, or from sheets 02, panels or possibly panels made of plastic, cardboard, glass or metal.
  • the substrate 02 is more preferably corrugated cardboard 02, in particular corrugated cardboard sheets 02.
  • a dimension is preferably orthogonal to a largest area of the sheet 02 to understand. This largest area is also referred to as the main area.
  • the thickness of the sheet-shaped substrate 02 or sheets 02 is, for example, at least 0.1 mm (zero point one millimeter), more preferably at least 0.3 mm (zero point three millimeters), and even more preferably at least 0.5 mm (zero point three millimeters). five millimeters).
  • significantly greater thicknesses are also common, for example at least 4 mm (four millimeters) or also 10 mm (ten millimeters) and more.
  • Corrugated cardboard sheets 02 are comparatively stable and therefore not very flexible. Corresponding adjustments to the processing machine 01 therefore make it easier to process sheet-shaped substrate 02 or thick sheets 02.
  • At least one first dryer 301 is preferably located downstream of the at least one first printing assembly 200 along the transport path provided for substrate 02.
  • One first dryer 301 has an area for substrate 02 that is designed as a drying section and is defined by an area of action of the at least one dryer 301.
  • the transport path of the printing substrate 02 and in particular the printing substrate web 02 preferably runs through the at least one first dryer 301 in order to dry the applied printing fluid.
  • the at least one first dryer 301 is preferably part of the at least one dryer unit 300.
  • the at least one first dryer 301 is preferably embodied as an infrared radiation dryer.
  • the at least one dryer unit 300 is also arranged spatially downstream of the printing unit 200 in a machine direction M, which is arranged pointing from a first unit 100 to a last unit 400.
  • the at least one dryer unit 300 is arranged upstream of the at least one printing assembly 200 in the machine direction M.
  • the transport direction T is then at least partially and in sections arranged opposite to the machine direction M.
  • the substrate 02 is then partially and partially arranged in the processing machine 01 so that it can be returned.
  • a vertical direction V denotes a direction that is preferably orthogonal to the plane spanned by the transverse direction A and the transport direction T.
  • the vertical direction V with the transverse direction A and the transport direction T preferably form a Cartesian coordinate system.
  • the vertical direction V in the case of a transport direction T that runs parallel to the floor, the vertical direction V preferably points away from the floor on which processing machine 01 is standing.
  • the vertical direction V is preferably arranged parallel to the floor on which the web processing machine 01 is standing.
  • Printing press 01 is preferably characterized in that at least within the at least one dryer unit 300 and more preferably also within the at least one processing unit 200 and even more preferably in other areas of printing press 01, at least temporarily and preferably permanently at least one and preferably exactly one along at least a webbing-up means that is movable, preferably endless, for webbing-up a substrate 02 is and/or can be arranged.
  • the at least one webbing-up path and/or the at least one webbing-up means is preferably located outside the working width of printing press 01 with respect to transverse direction A.
  • At least one substrate 02 is and/or can be connected to the at least one webbing-up means via at least one connecting element, more preferably embodied as at least one webbing-up tip, in particular independently of the configuration of the at least one webbing-up means as a webbing-up tape and/or webbing-up chain and/or endless webbing-up means and/or or finite retractant.
  • at least one connecting element more preferably embodied as at least one webbing-up tip, in particular independently of the configuration of the at least one webbing-up means as a webbing-up tape and/or webbing-up chain and/or endless webbing-up means and/or or finite retractant.
  • At least one printing material roll 101 is rotatably arranged in roll unwinding device 100.
  • the roll unwinding device 100 is designed to accommodate a printing material roll 101, ie it has only one Storage position for a roll of printing material 101.
  • the roll unwinding device 100 is embodied as a roll changer 100 and has storage positions for at least two printing material rolls 101.
  • the roll changer 100 is preferably designed in such a way that it enables a flying roll change, i.e. a connection of a first substrate web 02 of a currently processed printing substrate roll 101 with a second substrate web 02 of a printing substrate roll 101 to be processed subsequently, while both the currently processed printing substrate roll 101 and the subsequently to be processed printing material roll 101 rotate.
  • the roll unwinding device 100 along the intended transport path of the substrate 02 downstream of a roll holding device has a dancer roller, which is preferably arranged such that it can be deflected on a dancer lever, and/or a first web edge aligner and/or an infeed gap formed by a tension roller and a tension pressure roller, and a first measuring roller, in particular Infeed measuring roller trained first measuring device having infeed mechanism.
  • This pull roller preferably has its own drive motor, designed as a pull drive motor, which is preferably connected to a machine controller.
  • a web tension can be set and maintained within limits by means of the dancer roll and/or the web tension is preferably kept within limits.
  • the roll unwinding device 100 has a gluing and cutting device, by means of which a roll change can be carried out on the fly, i. H. can take place without the substrate web 02 coming to a standstill.
  • the infeed unit is preferably arranged downstream of the first web edge aligner.
  • the at least one pull roller is preferably arranged, with which the pull pressure roller is preferably arranged together to form the infeed gap.
  • the feed gap is used to regulate web tension and/or to transport substrate 02.
  • the invention is described below using an inkjet printing machine 01. However, the invention is also applicable to other processing steps and non-impact Printing methods or completely different printing methods such as rotary printing, offset printing, planographic printing, letterpress printing, screen printing or gravure printing can be used provided there are no contradictions.
  • the invention is described below in connection with a web-type substrate 02, i.e. a substrate web 02, in particular a web-type printing material 02, i.e. a printing material web 02.
  • Corresponding features are preferably also applicable to printing presses 01 for sheet-type substrate 02, in particular sheet-type printing material 02, provided there are no contradictions.
  • web processing machine 01 comprises a processing unit 200, in particular a printing assembly 200.
  • a printing assembly 200 is understood to mean a device by means of which a web-shaped or sheet-shaped printing substrate 02 is or can be provided with at least one pressure fluid on at least one of its sides.
  • the at least one first printing assembly 200 of printing press 01 preferably has at least one printing point 201.
  • a printing point 201 is preferably understood to mean an area in which contact is made or can be made between the same printing fluid and a printing substrate 02.
  • printing point 201 should also be used when the printing fluid is applied to printing substrate 02 without pressure between printing substrate 02 on the one hand and a component that transfers the printing fluid on the other, for example as a result of freely moving printing fluid hitting printing substrate 02, for example flying drops of the pressure fluid.
  • a printing point 201 preferably includes all areas that are provided for a specific printing fluid, in particular one assigned to this printing point 201, to impinge on the printing substrate 02.
  • a printing point 201 comprises all areas that are intended for black and/or colored ink to impinge on a first side of printing substrate 02.
  • the at least one first printing unit 200 preferably has a plurality of printing points 201 each of which is assigned a respective pressure fluid, for example at least four pressure points 201, preferably at least five pressure points 201, more preferably at least six pressure points 201 and even more preferably at least seven pressure points 201.
  • a working width of printing press 01 and/or the at least one printing assembly 200 is a dimension that preferably extends orthogonally to the intended transport path for printing substrate 02 through the at least one first printing assembly 200, more preferably in the transverse direction A.
  • the transverse direction A is preferably a horizontal direction.
  • Transverse direction A is oriented orthogonally to the intended transport direction T of printing substrate 02 and/or orthogonally to the intended transport path of printing substrate 02 through the at least one printing assembly 200.
  • the working width of printing press 01 preferably corresponds to a maximum width that printing material 02 may have in order to still be able to be processed with printing press 01, i.e. a maximum printing material width that can be processed with printing press 01.
  • the working width of printing press 01 preferably corresponds to the working width of the at least one first printing assembly 200.
  • the working width of printing assembly 200 therefore preferably corresponds to the maximum width that a printing substrate 02 may have in order to still be able to be processed with printing assembly 200, i.e. a maximum the printing material width that can be processed with the printing unit 200.
  • the working width of web processing machine 01, in particular printing press 01 and/or the at least one first printing assembly 200 and/or a width of a printing substrate 02 to be processed is, for example, at least 1,500 mm (1,500 millimeters), preferably at least 2,000 mm (2,000 millimeters) and more preferably at least 2,500 mm (two thousand five hundred millimeters). In particular, even larger working widths are possible.
  • the at least one printing unit 200 has at least two with respect to the transport of, in particular, web-type printing substrate 02 provided transport path specified transport direction T arranged one behind the other, preferably embodied as inkjet print heads 202 print heads.
  • the at least one printing unit 200 preferably has at least four, more preferably at least eight, even more preferably at least ten, even more preferably at least twelve and even more preferably at least fourteen such print heads arranged one behind the other with respect to the transport direction T defined by the transport path provided for the transport of printing substrate 02 202 on.
  • the processing machine 01 more preferably has a plurality of guide elements 121 for guiding the substrate 02 through the processing machine 01.
  • the plurality of guide elements 121 are arranged to redirect the transport path and/or the transport direction T, for example.
  • the plurality of guide elements 121 are designed as rollers 121 and/or as guide rollers 121 for this purpose.
  • the substrate 02 and preferably the substrate web 02 preferably wrap around the guide elements 121 at least partially.
  • the at least one guide element 121 is arranged to apply a force to the substrate 02 in order to deflect and/or redirect the substrate 02. This force is preferably arranged to act in the radial direction of the at least one guide element 121.
  • the at least one force of the guide element 121 is a force and/or force component directed counter to the suction force of the cleaning device 120, which is arranged to act in the direction of the guide element 121. In particular, it is more difficult to lift substrate 02 in the area of guide elements 121.
  • support elements and/or transport elements can be arranged to prevent and/or modify the lifting of substrate 02 in sections of processing machine 01.
  • support elements and/or transport elements can be designed as vacuum chambers.
  • the at least one processing machine 01 also has at least one Cleaning device 120 on. Each side of the transport path and/or of the substrate 02 preferably has at least one cleaning device 120.
  • the at least one processing machine 01 preferably has at least one cleaning device 120 on one side of the substrate 02 and at least one additional cleaning device 120 on the opposite side of the substrate 02.
  • the at least one cleaning device 120 is in one of the units 100; 200; 300; 400 and/or units 100; 200; 300; 400 arranged.
  • the at least one cleaning device 120 is preferably arranged in a processing machine 01 embodied as a printing press 01, in particular as an inkjet printing press 01, between a substrate source 100 and/or a roll changer 100 and a processing unit 200 and/or a printing unit 200.
  • the at least one cleaning device 120 is preferably arranged on an adjustment device for adjusting the at least one cleaning device 120.
  • the at least one cleaning device 120 is preferably embodied as a vacuum chamber 136 and/or a vacuum cleaning device.
  • the at least one cleaning device 120 is preferably arranged to apply a suction force to at least one cleaning region 127.
  • the at least one cleaning device 120 is arranged to apply a cleaning effect over the entire working and/or web width.
  • the at least one cleaning device 120 is suitable for carrying out contactless cleaning.
  • the cleaning device 120 is arranged to apply a suction power and/or suction force to the cleaning area 127 so that contactless cleaning is possible.
  • a distance for contactless cleaning is, for example, between 1 mm (one millimeter) and 3 cm (three centimeters).
  • a non-contact cleaning distance is 2 mm (two millimeters). More preferably, the at least one cleaning device 120 has a plurality of elements that increase turbulence of the intake air. In particular, due to the turbulence of the sucked-in air, preferably before the air is sucked into the cleaning device 120, Particles, especially dust particles, loosened and / or dissolved on the substrate surface.
  • the at least one cleaning device 120 also includes one and/or more brushes for cleaning substrate 02 with contact.
  • the brushes of the at least one cleaning device 120 are preferably arranged such that they can be adjusted.
  • the at least one cleaning device 120 has an electrical charging device 132 and/or device for the ionization 132 of particles, in particular dust particles.
  • the ionization device 132 has at least one first ionization point and one second ionization point. The at least one cleaning device 120 ionizes and/or deionizes the substrate 02 before and/or after it passes through the at least one cleaning device 120 by means of an ionization device 132.
  • a substrate 02 is preferably ionized before it is passed through the at least one cleaning device 120 and is preferred deionized after passing through the cleaning device 120. Particles on the substrate 02 are preferably loosened in this way and can be removed more easily by the at least one cleaning device 120. Deionization means that no charges remain after passing through the cleaning device, so that other parts of the system are not affected by the charges.
  • the at least one cleaning device 120 also has a device for adapting the suction power to the width of substrate 02.
  • the suction air of the at least one cleaning device 120 is preferably discharged by means of a collecting pipe 123, in particular in the case of large web widths of more than 1 m (one meter), more preferably more than 1.5 m (one point five meters).
  • the at least one cleaning device 120 has at least one valve, preferably one valve each, on suction connection piece 135, preferably at least on the outer suction connection piece 135.
  • the suction sockets 135, preferably the at least three, more preferably the at least five suction sockets 135, are arranged in an operative connection with the at least one collecting tube 123.
  • Such a valve can be closed if necessary and so then a Suction power are blocked in the outer areas of the web.
  • the at least one cleaning device 120 can thus be easily adapted to different web widths.
  • the suction power of the at least one cleaning device 120 can be adapted to the width of a substrate 02 by switching suction nozzles 135 on and/or off using a plurality of valves.
  • the at least one cleaning device 120 is preferably designed to be soundproof.
  • the extracted dust and/or the particles are collected and/or stored in a dust collection container that is operatively connected to the collection tube 123 .
  • Each cleaning device 120 is preferably arranged in an operative connection with at least one dust collecting container.
  • the at least one cleaning device 120 is preferably arranged perpendicular to transport direction T above substrate 02 and/or below substrate 02 and/or above substrate 02 and/or below the transport path provided for substrate 02. Furthermore, the at least one cleaning device 120 is arranged so that it can be adjusted in at least two positions, at least parallel to the substrate 02 and/or to the intended transport path for the substrate 02.
  • the at least one cleaning device 120 is assigned a cleaning area 127 on substrate 02 and/or the transport path provided for substrate 02.
  • the cleaning area 127 is the area with which the at least one cleaning device 120 is arranged in operative connection during operation.
  • the cleaning area 127 is the area in which at least 50% (fifty percent) of the suction power of the cleaning device 120 arrives and/or acts.
  • the brushes 133 are arranged to surround the cleaning region 127.
  • the air suction is arranged between the brushes 133 .
  • the cleaning area 127 is then defined by the projection of brushes 133 onto substrate 02 and/or onto the transport path provided for substrate 02.
  • the at least one cleaning area 127 is preferably embodied as a surface on substrate 02 and/or on the intended transport path of substrate 02.
  • the cleaning area 127 is designed as a line 128 of the projection and the line 128 has a center point 129 .
  • the at least one cleaning device 120 is preferably arranged so that it can be adjusted from a first cleaning position into a second cleaning position.
  • the at least one cleaning device 120 in the first cleaning position, has a cleaning area 127 on the substrate 02 of the substrate web 02 and/or on the intended transport path of the substrate 02 and/or arranged in operative connection.
  • the at least one cleaning region 127 is arranged offset, in particular parallel to the substrate 02.
  • the at least one cleaning device 120 is preferably arranged to be adjustable with a drive 124.
  • the at least one drive 124 is arranged, for example, as an electric motor, as a handwheel, and/or more preferably as a hydraulically and/or pneumatically adjustable drive 124.
  • the at least one drive 124 is embodied as a hydraulic cylinder 124.
  • the at least one cleaning device 120 is adjustably arranged on a linear guide 122.
  • the linear guide 122 is preferably arranged to be adjustable at least parallel to the transport direction T and/or the transport path.
  • the at least one cleaning device 120 is attached to the machine housing via a frame 125 .
  • the at least one cleaning device 120 is also arranged so that it can be adjusted perpendicularly to transport direction T.
  • a distance from the transport path and/or from substrate 02 can be set in this way.
  • the at least one cleaning device 120 and/or the substrate 02 are arranged in several states relative to one another. States here preferably mean positions of the cleaning device 120 and of the substrate 02.
  • the at least one cleaning device 120 and/or the substrate 02 can be arranged, preferably at least in a first cleaning state and a second cleaning state, with the at least one cleaning device 120 and the substrate 02 being arranged in a working position in the first cleaning state and the second cleaning state .
  • both cleaning states the at least one cleaning device 120 is arranged to clean the substrate 02.
  • the at least one cleaning device 120 is arranged to clean the substrate 02 without contact.
  • the at least one cleaning device 120 is arranged to clean the substrate 02 with contact and/or touch.
  • the at least one cleaning device 120 is arranged in the first cleaning position.
  • substrate 02 is arranged at a distance from the at least one cleaning device 120.
  • the at least one cleaning device 120 is preferably arranged in operative connection with a cleaning area 127 on substrate 02.
  • the at least one cleaning device 120 is arranged in the second cleaning position.
  • substrate 02 is in contact and/or in contact with the at least one cleaning device 120.
  • the at least one cleaning device 120 is preferably in operative connection with a cleaning area 127 on substrate 02 arranged.
  • the at least one cleaning device 120 is arranged in an adjusted manner.
  • the at least one cleaning device 120 is preferably arranged only parallel to the substrate 02 and/or to the transport path provided for the substrate 02 and/or offset to the transport direction T.
  • a cleaning area 127 of the at least one cleaning device 120 is preferably offset along the transport path of substrate 02.
  • the at least one cleaning device 120 is arranged to apply a suction force to the cleaning area 127 of the first cleaning position
  • the at least one cleaning device 120 is arranged to apply a suction force to the cleaning area 127 displaced in the transport path.
  • substrate 02 has a higher force and/or force component counteracting the suction force than in cleaning region 127 of the second cleaning position of cleaning device 120.
  • the force and/or force component counteracting the suction force is so great that the substrate 02 and/or the substrate web 02 is arranged at a distance from the at least one cleaning device 120.
  • the at least one cleaning region 127 of the first cleaning position of cleaning device 120 is arranged in operative connection with at least one guide element 121 and/or a support element and/or a transport element.
  • Actively connected refers in particular to a deflection and/or a force component and/or force counteracting the suction force of the at least one cleaning device 120. That is preferred In the first cleaning position of cleaning device 120, substrate 02 is arranged in contact with a guide element 121 in the area opposite cleaning area 127 on the opposite side of substrate 02 and/or the opposite side of the transport path provided for substrate 02.
  • the cleaning area 127 in the first cleaning position of the cleaning device 120 perpendicular to the transport direction T is arranged above the at least one guide element 121 and/or is at a first distance parallel to the transport direction T from the at least one guide element 121. More preferably, above guide element 121 indicates that the straight line connecting center point 129 of segment 128 is the project of cleaning area 127 and the centroid and/or the axis of rotation of the at least one guide element 121 perpendicular to transport direction T at center point 129.
  • the substrate 02 in the cleaning region 127 of the second cleaning position of the second cleaning device 120 has a lower force and/or force component counteracting the suction force than in the cleaning region 127 of the second cleaning position of the cleaning device 120.
  • the force and/or force component counteracting the suction force is in particular so small that the substrate 02 is arranged in contact with the at least one cleaning device 120 and/or in contact with the brushes 133 of the at least one cleaning device 120.
  • the at least one cleaning region 127 is arranged at a distance from the at least one guide element 121.
  • the cleaning area 127 in the second cleaning position is spaced apart from the at least one guide element 121 parallel to the transport direction T by a distance a127, and the distance a127 is greater than the distance between the cleaning area 127 in the first cleaning position of the at least one cleaning device 120.
  • the distance a127 des cleaning area 127 to a guide element 121 is the distance a127 parallel to the transport direction T from the center point 129 of the cleaning area 127 to the centroid and/or the axis of rotation of the at least one guide element 121.
  • the straight line connecting midpoint 129 of segment 128 of the project of cleaning area 127 and the centroid and/or the axis of rotation of the at least one guide element 121 is at an angle of less than 90° (ninety degrees) to transport direction T at midpoint 129.
  • the at least one cleaning device 120 is arranged at a distance from the at least one guide element 121.
  • a distance is, for example, so large that a paper feed is possible.
  • cleaning device 120 is arranged parallel to substrate 02 and/or the transport path provided for substrate 02 when it is adjusted from the first cleaning position to the second cleaning position. Furthermore, in particular the cleaning area 127 of the first cleaning position of the cleaning device 120 is arranged shifted relative to the cleaning area 127 of the second cleaning position parallel to the transport path.
  • the at least one processing machine 01 preferably has at least one cleaning device 120 on one side of substrate 02 and at least one additional cleaning device 120 on the opposite side of substrate 02.
  • the cleaning of the substrate 02 is preferably set and/or adjusted depending on the substrate properties and/or the substrate format and/or the machine speed.
  • the at least one cleaning device 120 is at a distance from substrate 02 in the case of sensitive Substrates 02, such as operated with thin substrates 02.
  • substrate 02 runs past the at least one cleaning device 120 at a distance of 2 mm (two millimeters), for example.
  • the at least one cleaning device 120 is operated in contact with substrate 02.
  • the distance of at least one cleaning device 120 from a substrate 02 is adjusted as a function of the substrate properties and/or as a function of the substrate format and/or as a function of an operating mode of the processing machine 01.
  • a distance between a cleaning device 120 and a substrate 02 is set by changing the position of the substrate 02 and/or the transport path provided for the substrate 02 by the suction force of the cleaning device 120.
  • the distance between the at least one cleaning device 120 and a substrate 02 is preferably set by moving the at least one cleaning device 120 into an area on the transport path of the substrate 02 with a different force component that opposes the suction force.
  • the at least one cleaning device 120 is preferably changed.
  • the distance between the substrate 02 and/or the transport path provided for the substrate 02 and the at least one cleaning device 120 is arranged to be changed when it is moved from the first cleaning position to the second cleaning position.
  • this is achieved by a vertical adjustment of the at least one cleaning device 120.
  • the at least one cleaning device 120 when moving from the first cleaning position to the second cleaning position perpendicular to the substrate 02 and/or the transport path provided for the substrate 02.
  • the cleaning device 120 is adjusted for the transition from the first cleaning state to the second cleaning state. Only the at least one cleaning device 120 is preferably adjusted. In particular, cleaning area 127 is thereby displaced on substrate 02 and/or the transport path provided for the substrate.
  • the cleaning device 120 acts with a suction force on the substrate 02 in the cleaning states.
  • the substrate 02 has different areas on which different forces and/or directional vectors of the forces and/or force components act.
  • guide elements 121 divert the substrate 02 from its transport path.
  • the substrate 02 preferably at least partially wraps around the at least one guide element 121.
  • a force and/or force component is applied to the substrate in order to deflect the transport path.
  • the substrate 02 has areas in which it is difficult to lift the substrate 02.
  • the at least one cleaning device 120 and thus the cleaning region 127 are displaced.
  • the cleaning device 120 is shifted to an area with a lower opposing force to the suction force of the cleaning device 120 .
  • the negative pressure and/or the suction force on the respective cleaning area 127 lifts the substrate 02 so that the cleaning device 120 and the substrate 02 come into contact.
  • substrate 02 is guided over a contact surface of cleaning device 120 and/or over contact with brushes 133 of cleaning device 120.
  • the contact surface preferably has a pattern to increase the turbulence of the intake air and to improve the cleaning effect.
  • the at least one cleaning device 120 has at least one, preferably two, contact elements 134 with the contact surfaces for this purpose.
  • the contact elements 134 designed as flow elements 134 have a structure which swirls the flow in the area of the cleaning area 127 and thus leads to improved cleaning.
  • air is swirled by means of at least one flow element (134).
  • the contact elements 134 have, for example, grooves, preferably inclined.
  • the flow elements 134 improve cleaning with contact and/or without contact due to the turbulence of the suction air.
  • the at least one cleaning device 120 has at least one, more preferably at least two or exactly two, flow elements 134.
  • a distance from the at least one cleaning device 120 to at least one guide element 121 is increased.
  • cleaning device 120 is adjusted, preferably only, parallel to substrate 02.
  • the cleaning device 120 is adjusted by means of the drive 124 .
  • the drive 124 is preferably designed as a hydraulic cylinder 124 and specifies a preferably purely linear movement.
  • the at least one cleaning device 120 is operatively connected to the drive 124 via a guide element 126.
  • the intake air is collected and discharged via a collecting pipe 123, which is connected to the cleaning device 120.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Advancing Webs (AREA)
  • Ink Jet (AREA)

Claims (15)

  1. Machine de traitement (01) avec au moins un dispositif de nettoyage (120) pour le nettoyage d'un substrat (02), dans laquelle le au moins un dispositif de nettoyage (120) et le au moins un substrat (02) peut être disposé dans un premier état de nettoyage, dans laquelle le au moins un dispositif de nettoyage présente au moins deux éléments d'écoulement (134) et/ou brosses (133), dans laquelle le substrat (02) dans le premier état de nettoyage est disposé de manière espacée du au moins un dispositif de nettoyage (120), dans laquelle le au moins un dispositif de nettoyage (120) et le au moins un substrat (02) peuvent être disposés dans un deuxième état de nettoyage, dans laquelle le substrat (02) dans le deuxième état de nettoyage est disposé en contact avec les au moins deux éléments d'écoulement (134) et/ou les brosses (133) du au moins un dispositif de nettoyage (120) et dans laquelle le au moins un dispositif de nettoyage (120) et le substrat (02) sont disposés de manière à pouvoir être amenés au moins du premier état de nettoyage dans le deuxième état de nettoyage, dans laquelle le au moins un dispositif de nettoyage (120) est disposé de manière à être déplacé à partir d'une première position de nettoyage dans le premier état de nettoyage dans une deuxième position de nettoyage dans le deuxième état de nettoyage, dans laquelle le au moins un dispositif de nettoyage (120) dans la première position de nettoyage est disposé en liaison fonctionnelle avec une zone de nettoyage (127) sur le substrat (02) et/ou sur la voie de transport prévue pour le substrat (02) et dans laquelle dans la deuxième position de nettoyage du au moins un dispositif de nettoyage (120) la zone de nettoyage (127) est disposée de manière à être déplacée sur le substrat (02) et/ou sur la voie de transport prévue pour le substrat (02) et dans laquelle le au moins un dispositif de nettoyage (120) dans le premier état de nettoyage et dans le deuxième état de nettoyage est disposé de manière à appliquer une force d'aspiration au moins sur la zone de nettoyage (127).
  2. Machine de traitement selon la revendication 1, caractérisée en ce qu'un élément de guidage (121) déviant la voie de transport du substrat (02) est disposé de manière à augmenter la composante de force s'opposant à la force d'aspiration sur le substrat (02) dans la zone de nettoyage (127) de la première position de nettoyage en comparaison de la zone de nettoyage (127) dans la deuxième position de nettoyage.
  3. Machine d'usinage selon la revendication 1 ou 2, caractérisée en ce que le dispositif de nettoyage (120) lors du déplacement à partir de la première position de nettoyage dans la deuxième position de nettoyage est disposé de manière à être déplacé parallèlement au substrat (02) et/ou à la voie de transport prévue pour le substrat (02).
  4. Machine d'usinage selon la revendication 1 ou 2 ou 3, caractérisée en ce qu'un élément de guidage (121) est disposé sur la face opposée de la voie de transport prévue pour le substrat (02) et/ou le substrat (02) le au moins un dispositif de nettoyage (120) au moins dans la première position de nettoyage.
  5. Machine d'usinage selon la revendication 1 ou 2 ou 3 ou 4, caractérisée en ce que le au moins un dispositif de nettoyage (120) est disposé entre une source de substrat (100) et un groupe d'impression (200).
  6. Machine d'usinage selon la revendication 1 ou 2 ou 3 ou 4 ou 5, caractérisée en ce que la au moins une machine d'usinage (01) présente respectivement au moins un dispositif de nettoyage (120) sur l'une des faces du substrat (02) et respectivement au moins un autre dispositif de nettoyage (120) sur la face opposée du substrat (02).
  7. Machine d'usinage selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6, caractérisée en ce que le au moins un dispositif de nettoyage (120) est réalisé sous la forme d'un dispositif de nettoyage (120) avec une chambre à vide (136) et/ou un système d'ionisation (132).
  8. Machine d'usinage selon la revendication 1 ou 2 ou 3 ou 4 ou 5 ou 6 ou 7, caractérisée en ce que la puissance d'aspiration du au moins un dispositif de nettoyage (120) peut être adaptée à une largeur d'un substrat (02) par mise sous tension et/ou hors tension de tubulures d'aspiration (135) au moyen de plusieurs soupapes.
  9. Procédé pour le nettoyage d'un substrat (02) dans une machine d'usinage (01), dans lequel une distance d'au moins un dispositif de nettoyage (120) par rapport à un substrat (02) est réglée en fonction des propriétés du substrat et/ou en fonction du format du substrat et/ou en fonction d'un mode de fonctionnement de la machine d'usinage (01), caractérisé en ce que le dispositif de nettoyage (120) est déplacé pour l'ajustement du dispositif de nettoyage (120) par rapport au substrat (02) à partir d'un premier état de nettoyage dans un deuxième état de nettoyage parallèlement au substrat (02) et/ou par rapport à la voie de transport prévue pour le substrat (02) et que le dispositif de nettoyage (120) dans les états de nettoyage exerce une force d'aspiration sur le substrat (02).
  10. Procédé selon la revendication 9, caractérisé en ce qu'une distance d'un dispositif de nettoyage (120) par rapport à un substrat (02) est ajustée du fait que le substrat (02) et/ou la voie de transport prévue pour le substrat (02) est modifiée par la force d'aspiration du dispositif de nettoyage (120) dans la position.
  11. Procédé selon la revendication 9 ou 10, caractérisé en ce qu'une distance d'un dispositif de nettoyage (120) par rapport à un substrat (02) est ajustée du fait que le dispositif de nettoyage (120) est décalé dans une zone sur la voie de transport du substrat (02) avec une autre composante de force dirigée dans le sens inverse de la force d'aspiration.
  12. Procédé selon la revendication 9 ou 10 ou 11, caractérisé en ce que le dispositif de nettoyage (120) pour l'ajustement de la distance du dispositif de nettoyage (120) par rapport au substrat (02) une distance du dispositif de nettoyage (120) par rapport à un élément de guidage (121) disposé sous le substrat (02) et/ou sous la voie de transport prévue pour le substrat est modifiée.
  13. Procédé selon la revendication 9 ou 10 ou 11 ou 12, caractérisé en ce que le au moins un dispositif de nettoyage (120) ionise et/ou déionise le substrat (02) avant le passage et/ou après le passage à travers le au moins un dispositif de nettoyage (120) au moyen d'un système d'ionisation (132).
  14. Procédé selon la revendication 9 ou 10 ou 11 ou 12 ou 13, caractérisé en ce que la puissance d'aspiration du au moins un dispositif de nettoyage (120) est adaptée à une largeur d'un substrat (02) par mise sous tension et/ou hors tension de tubulures d'aspiration (135) au moyen de plusieurs soupapes.
  15. Procédé selon la revendication 9 ou 10 ou 11 ou 12 ou 13 ou 14, caractérisé en ce que de l'air est amené à tourbillonner au moyen d'au moins un élément d'écoulement (134) dans une zone de nettoyage (127) du au moins un dispositif de nettoyage (120).
EP20789925.3A 2019-11-25 2020-10-08 Machine de traitement dotée d'au moins un dispositif de nettoyage et procédé de nettoyage Active EP4003615B1 (fr)

Applications Claiming Priority (2)

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DE102019131799.1A DE102019131799A1 (de) 2019-11-25 2019-11-25 Bearbeitungsmaschine mit zumindest einer Reinigungsvorrichtung und Verfahren zur Reinigung
PCT/EP2020/078264 WO2021104732A1 (fr) 2019-11-25 2020-10-08 Machine de traitement dotée d'au moins un dispositif de nettoyage et procédé de nettoyage

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EP4003615A1 EP4003615A1 (fr) 2022-06-01
EP4003615B1 true EP4003615B1 (fr) 2023-06-21

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US (1) US11724289B2 (fr)
EP (1) EP4003615B1 (fr)
CN (1) CN114466707B (fr)
DE (1) DE102019131799A1 (fr)
WO (1) WO2021104732A1 (fr)

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EP4400314A1 (fr) * 2023-01-10 2024-07-17 Bobst Bielefeld GmbH Presse rotative d'impression avec unité de nettoyage et procédé de nettoyage d'un substrat

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US11724289B2 (en) 2023-08-15
CN114466707B (zh) 2023-07-04
US20220362816A1 (en) 2022-11-17
CN114466707A (zh) 2022-05-10
EP4003615A1 (fr) 2022-06-01
DE102019131799A1 (de) 2021-05-27
WO2021104732A1 (fr) 2021-06-03

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