EP2308681A2 - Dispositif de découpe d'un matériau d'impression ainsi qu'une plieuse et une machine d'impression équipées d'un tel dispositif - Google Patents

Dispositif de découpe d'un matériau d'impression ainsi qu'une plieuse et une machine d'impression équipées d'un tel dispositif Download PDF

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Publication number
EP2308681A2
EP2308681A2 EP20100008872 EP10008872A EP2308681A2 EP 2308681 A2 EP2308681 A2 EP 2308681A2 EP 20100008872 EP20100008872 EP 20100008872 EP 10008872 A EP10008872 A EP 10008872A EP 2308681 A2 EP2308681 A2 EP 2308681A2
Authority
EP
European Patent Office
Prior art keywords
cutting
paper web
printing
web
printing material
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.)
Granted
Application number
EP20100008872
Other languages
German (de)
English (en)
Other versions
EP2308681B1 (fr
EP2308681A3 (fr
Inventor
Theo Keilhau
Helmut Schnell
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.)
Manroland Goss Web Systems GmbH
Original Assignee
Manroland AG
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Publication of EP2308681A2 publication Critical patent/EP2308681A2/fr
Publication of EP2308681A3 publication Critical patent/EP2308681A3/fr
Application granted granted Critical
Publication of EP2308681B1 publication Critical patent/EP2308681B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/02—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for for printing books or manifolding sets
    • 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
    • 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
    • B41F23/04—Devices for treating the surfaces of sheets, webs, or other articles in connection with printing by heat drying, by cooling, by applying powders
    • B41F23/0403—Drying webs
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/66—Applications of cutting devices
    • B41J11/663—Controlling cutting, cutting resulting in special shapes of the cutting line, e.g. controlling cutting positions, e.g. for cutting in the immediate vicinity of a printed image
    • 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
    • B41J15/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in continuous form, e.g. webs
    • B41J15/04—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles
    • 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
    • B41J25/00—Actions or mechanisms not otherwise provided for
    • B41J25/304—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface
    • B41J25/316—Bodily-movable mechanisms for print heads or carriages movable towards or from paper surface with tilting motion mechanisms relative to paper surface
    • 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
    • B41J3/00—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed
    • B41J3/60—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed for printing on both faces of the printing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/02—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with longitudinal slitters or perforators
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H35/00—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers
    • B65H35/04—Delivering articles from cutting or line-perforating machines; Article or web delivery apparatus incorporating cutting or line-perforating devices, e.g. adhesive tape dispensers from or with transverse cutters or perforators
    • 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
    • B41J11/00—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form
    • B41J11/0015—Devices or arrangements  of selective printing mechanisms, e.g. ink-jet printers or thermal printers, for supporting or handling copy material in sheet or web form for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing
    • B41J11/002—Curing or drying the ink on the copy materials, e.g. by heating or irradiating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2301/00—Handling processes for sheets or webs
    • B65H2301/40—Type of handling process
    • B65H2301/44—Moving, forwarding, guiding material
    • B65H2301/443—Moving, forwarding, guiding material by acting on surface of handled material
    • B65H2301/4431—Moving, forwarding, guiding material by acting on surface of handled material by means with operating surfaces contacting opposite faces of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
    • B65H2402/00—Constructional details of the handling apparatus
    • B65H2402/10—Modular constructions, e.g. using preformed elements or profiles
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/727—With means to guide moving work
    • Y10T83/73—Guide fixed to or integral with stationary tool element
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T83/00—Cutting
    • Y10T83/727—With means to guide moving work
    • Y10T83/744—Plural guide elements

Definitions

  • the present invention relates to a variable-format device for cutting substrates, in particular for use in a variable-format cutting and folding or configured as a variable-format cutting and folding apparatus, in particular for use in a variable-format printing machine, in particular such a web-fed printing press.
  • Web presses are known from the prior art in principle, for example, from standard textbooks for web offset printing. So are off Wolfgang Walenski, The Web Offset Printing, 1995, pp. 90-95
  • web presses for commercial printing and newspaper printing known and from pp. 98 - 103 are known, for example, web presses for letterpress printing.
  • web presses are off Helmut Teschner, Offsettiktechnik, 1997, pp. 10/25 - 10/28 known and web presses for the Book printing from Teschner p. 10/76 - 10/82 known.
  • web presses are out of the printing press DE 40 30 863 A1 It is known where a web-fed rotary printing machine is described, which has two successive longitudinal folding devices with two formers, wherein the first longitudinal folding device is arranged rotated by 90 ° relative to the second.
  • the mentioned web presses are all designed as rotary printing machines, so use for applying ink to a paper web rotating printing cylinder in the form of plate cylinders carrying the printing plates and in the form of transfer cylinders or rubber cylinders, which transfer the ink from the plate cylinder to the paper web.
  • p. 10/76 is already on the problem of procedural Disadvantages due to fixed cylinder circumferences pointed out, but there is still working with web offset printing machines, so with web presses that have rotating cylinder pressure.
  • printing presses and also folders with fixed cylinder circumference and thus fixed printing section or printing format are used in web-fed printing presses, in particular in letterpress web presses.
  • the associated folders are set to this fixed perimeters and thus fixed print formats.
  • the producible print formats and printed products are always the same over the entire life of the web press, given by the fixed peripheries of the cylinders.
  • Such fixed formats and, however, are not economically and / or technically optimized especially for short runs (for example less than 1000 pieces) and very short runs (for example smaller than 100 pieces).
  • the production costs of printing plates and the set-up time for the printing plate change have a smaller impact on the production costs of the printed products in smaller runs in percentage terms than in the case of printed products which are printed in always the same print format in large numbers (for example, thousands of pieces).
  • the same can also apply to newspaper printing and commercial printing with short runs and very small print runs, especially for contract printers, who have to provide constantly changing print products on behalf of a large number of customers and publishers.
  • the object of the present invention is to provide an improved device for cutting substrates, in particular paper webs, or a format-variable folding apparatus or a format-variable printing machine, in particular such a web-fed printing machine. This object is solved by the features of the independent claims.
  • a format-variable printing press in particular a web-fed printing press, has printing units having printing devices or groups of printing devices for applying printing ink to a printing substrate or a paper web. It may be provided that the printing devices or groups of printing devices are all formed free of rotating printing cylinders.
  • the printing unit for applying ink may also be suitable for applying any other type of liquid substance to a paper web is to be applied, such as paint, liquid adhesive, dampening solution or other printing inks such as toner-based inks or the like.
  • the device can be detached from the constraint of the fixed cylinder circumferences, the print formats always limited to fractions of the cylinder circumference (1, 1 ⁇ 2, 1 ⁇ 3, 1 ⁇ 4 etc).
  • the printing material and in particular the paper web located on a roll does not have this limitation because it has virtually an "infinite" extent - limited only by the web width of the printing material or the paper web - and allows the printing of any format sizes.
  • a format-variable printing machine in particular a format-variable web printing press, which can print a wide variety of printing formats, is possible.
  • the print formats of a print image or a print page can be characterized in particular by the length (extension in the direction of the printing material or the paper web) and / or the width (extension in the direction transverse to the paper web), but also by the orientation (distance of the print image of the edge of the paper web, distances between the printed images, angle between the printed image longitudinal edge and running direction of the printing material or the paper web) on the printing material or the paper web differ.
  • the printing devices or groups of printing devices can be designed for non-contact application of printing ink to the printing material or the paper web. These can be designed in particular as a device for dripping or spraying ink with the aid of a dripping device or nozzle device, for example in the form of an inkjet device. This avoids direct contact between printing material or paper web and printing devices and enables a variable-format application of printing ink to the printing substrate or the paper web.
  • the printing devices or groups of printing devices can also be designed for contactless application of toner-based printing ink to the printing material or the paper web.
  • control device for controlling and / or regulating the printing devices or groups of printing devices and for controlling and / or regulating an actuating device of at least one cutting device for cutting at least part of the printing material or the paper web, wherein the control of the actuating device is effected as a function of printing format settings for the printing devices or groups of printing devices.
  • This embodiment of the control device in combination with an object of the invention - and possibly its further embodiments as described here - results in a particularly favorable synergy, in particular for a format-variable printing process.
  • Especially the use of the knowledge of the print format settings for the printing devices or groups of printing devices for controlling an actuator of at least one cutting device in a - especially common - control device ensures an optimal and each print format-compliant adjustment of the entire printing and processing process.
  • the direction of the printing material or the paper web in the context of this invention does not define a global fixed plane in space, because the printing material or the web passes through several changes in direction and possibly also wraps, as the figures clearly show. However, it is for the expert locally - ie for each web section of the printing material or the paper web - each a clear spatial direction from the local direction of the paper web determined.
  • control device is designed to control and / or regulate a motorized actuating device of a cutting device with cutting blades.
  • the motor actuating device can be designed, for example, as a drive motor or servomotor.
  • control device is designed to control and / or regulate the actuating device as a function of prestored or precalculated control cams.
  • These cams may define a local and / or temporal course for the operating state of the actuator, i. It can be the operating state or it can be changed operating parameters (such as pressure, intensity, force, speed, spatial position, clock frequency) of the actuator locally or temporally using these cams.
  • the cutting device is designed as a rotating cutting device and the control device for controlling and / or regulating the actuating device is designed such that the cutting device can be operated per revolution with varying angular velocity.
  • the angular velocity (or the tangential component of the rotational speed in the running direction of the printing material or the paper web) of the cutting blade is equal to the conveying speed of the printing material or the paper web.
  • the rotational speed is adjusted per revolution of the rotating cutting device such that both are equally fast at least when the contact between the cutting blade and the paper web is made, so that there is no relative speed between the two at the contact point. As a result, tearing or chipping of the printing material or the paper web is avoided.
  • the printing devices or groups of printing devices have a nozzle device for spraying ink onto a printing substrate or a paper web, for example in the form of an inkjet device or that this toner device for applying toner-based ink on have a printing material or a paper web.
  • printing devices or groups of printing devices or the printing devices adjacent web guide elements for guiding the printing material or the paper web are mounted perpendicular to the web plane slidably. This can be used in particular for the relative alignment of the printing devices or groups of printing devices or the web guide elements to one another and / or relative to the printing material or to the paper web.
  • printing devices or groups of printing devices or the printing devices adjacent web guide elements for guiding the printing material or the paper web are controlled or controlled by a control device perpendicular to the web plane such that in each case a predefined distance between the printing material or the paper web and the pressure devices is maintained. This may be necessary in particular in printing devices which have a nozzle device.
  • a plurality of pressure devices or groups of pressure devices are arranged one behind the other in the running direction of the printing material or the paper web. This can be used, for example, to print several colors in succession.
  • the individual printing devices of a group of printing devices are each designed to apply different printing inks. It can therefore be provided in principle that printing devices print on the printing material or the paper web only with a single ink. However, it can also be provided that printing devices are provided for printing various printing inks, wherein in each case certain printing devices for printing different printing inks are combined to form a group. These groups are characterized for example by a similar spatial arrangement or a common control.
  • At least one dryer is provided, which is arranged downstream of at least one of the printing units in the running direction of the printing material or the paper web.
  • a so-called heatset production is possible.
  • the dryer is structurally integrated into a printing unit.
  • a particularly compact structural or spatial design of printing unit and dryer is possible.
  • the dryer is so structurally or spatially integrated into a printing unit that an influence of the printing devices by the dryer operation is avoided.
  • the dryer can emit disturbances such as heat radiation, vibrations, electromagnetic fields or the like, which can influence the function of the printing devices. It is avoided by this design, a disturbing influence of the printing devices by the dryer operation, for example, by suitable spatial separation or distances, suitable relative spatial arrangement of dryer and printing devices to each other or by suitable shields.
  • the dryer can be arranged, for example, below the pressure devices.
  • the dryer is arranged spatially above the printing devices of a printing unit.
  • a folding apparatus which is arranged downstream of the printing units and which may have a plurality of folding devices arranged in series in the running direction of the printing material or the paper web or arranged parallel to one another.
  • This embodiment of the folding apparatus in combination with an object of the invention - and possibly its further embodiments as described so far - results in a particularly favorable synergy, especially for a format-variable printing process. Consist of the two folding devices especially for format-variable printing processes great freedom for product design and product processing of printed products.
  • the arrangement of the folding devices and the web guide of the printing material or the paper web are set up in the folder so that the fold lines already mentioned above each define the fold of the printing material or the paper web by one of the folding devices. This can be achieved in particular that not printed or overprinted areas of the printing material or the paper web are aligned exactly so that they are placed on a fold of the printed products and thus not disturbing notice in the finished printed product.
  • one or each folding device is displaceable in at least one spatial direction, wherein the first folding device is displaceable in a first spatial direction and the second folding device is displaceable in a spatial direction perpendicular thereto.
  • the state of the art DE 40 30 863 A1 On the other hand, only one slidability of one of two formers, and the other former is fixed. The embodiment described here thus offers improved freedom in the alignment and adaptation of the folding devices to a wide variety of printing formats and widths as well as guides of the printing material or on paper web widths or paper web guides.
  • At least one folding device is additionally displaceable in the second or in a third spatial direction, which is perpendicular to the first spatial direction.
  • This variability of a folding device is a further improved adaptation to the alignment and adjustment the folding devices to a variety of printing formats and widths and guides the printing material or paper web widths or paper web guides.
  • a symmetrical or asymmetric web guide of the printing material or the paper web can be compensated by the printing devices with simultaneous variability of the web widths and print formats by the biaxial displaceability, wherein it is ensured that downstream in the running direction of the printing material or the paper web post-processing device (cutting devices , Web or sheet guides, grippers, etc.) not or only slightly adapted to changed print formats and widths and guides the printing material or paper web widths or paper web guides must be (eg spatially displaced).
  • the folder has a sheet or paper sheet transport element with a drive, wherein the drive is controlled by the control device or a separate control device that separated by the cutting device of the printing material or the paper web sheets or Paper sheets are accelerated away from the remaining printing material or the remaining paper web in the running direction of the printing material or the paper web.
  • the drive is controlled by the control device or a separate control device that separated by the cutting device of the printing material or the paper web sheets or Paper sheets are accelerated away from the remaining printing material or the remaining paper web in the running direction of the printing material or the paper web.
  • the sheet or paper sheet transport element is followed by a device with a drive, wherein the drive is controlled by the control device or a separate control device, that a slowing down of the transport movement of the previously accelerated sheets or paper sheets , This can be achieved in particular that separate sheets or sheets of paper are collected, for example, to produce multi-layer products.
  • the aforementioned device is designed such that, in addition to the slowing down, at least a part of the sheets or paper sheets is raised or lowered to shed the sheets or paper sheets.
  • lifting or lowering at least a portion of the sheets or paper sheets for example, the leading edge or trailing edge (seen in the running direction of the printing material or the paper web)
  • a shake of the sheets or paper sheets is facilitated, since then subsequent sheets or paper sheets over or be passed under previous sheets or sheets of paper.
  • a format-variable printing press in particular a variable-size web press, can be provided, such as a letterpress web-fed press, variable-format newspaper web press or format-variable commercial web press, which can be designed or developed in particular according to one or more of the technical features described above.
  • comprising printing devices such as inkjet or toner printing devices or groups of inkjet or toner printing devices and a control device for controlling and / or regulating the printing devices or groups of printing devices and for controlling and / or regulating an actuator of at least one cutting device, wherein the control of Actuator in response to printing format settings for the printing devices or groups of printing devices takes place.
  • Inkjet or toner printing devices are an implementation of printing devices, all of which are free of rotating printing cylinders and at the same time of printing devices or groups of printing devices for non-contact application of ink on the printing material or the paper web.
  • the embodiment of the control device described here for controlling the printing devices or groups of printing devices and for controlling an actuating device of at least one cutting device results in a particularly favorable synergy, in particular for a format-variable printing process.
  • Especially the use of the knowledge of the print format settings for the printing devices or groups of printing devices for controlling an actuator at least one cutting device in a - especially common - control device ensures an optimal and each print format-compliant adjustment of the entire printing and processing process.
  • Variable-format reel machine means that the print format settings of printed pages and / or print images on the printing material or the paper web - in particular length (extent in the direction of the printing material or the paper web) and / or width (expansion in the direction transverse to Printing material or to the paper web) and / or orientation alignment (distance of the print image from the edge of the printing material or the paper web, distances between the printed images, angle between the image longitudinal edge and running direction of the printing material or the paper web - can be varied within wide ranges , Essentially only limited by the width of the printing material or the paper web used.
  • a folding apparatus can also be provided, in particular for use with a roller machine and / or a control device according to one or more of the technical features described above.
  • an actuating device of a rotating cutting device can be controlled by a control device such that the cutting device can be operated per revolution with varying angular velocity. It can also be provided that upon contact of a cutting blade with the printing material or the paper web, the angular velocity is equal to the conveying speed of the printing material or the paper web.
  • the rotational speed is adjusted per revolution as the rotating cutting device so that at least when the contact between cutting blade and paper web are both equally fast, so that there is no relative speed between the two at the point of contact. This avoids tearing or picking.
  • a device for cutting paper webs can be provided with a cutting module, which includes a cutting device, wherein the cutting module has guide devices which have at least one partially planar and / or movable guide region for guiding the paper web through the cutting module.
  • a device for cutting substrates with a cutting module which includes a cutting device, wherein the cutting module has guide devices which have at least one partially planar and / or movable guide region for guiding the printing material through the cutting module.
  • a guide device encloses a cutting element of a cutting device.
  • at least one guide device has movable guide elements with a printing material, in particular with a paper web.
  • the guide elements can be designed such that they move together with a printing material or with a paper web at least in the guide area in the running direction of the printing material or the paper web, in particular at the same speed with which the printing material or the paper web in Moving direction of the printing material or the paper web moves. This speed can also be determined by the movement of the guide elements in the guide areas, for example by actively driven guide elements.
  • the cutting element for cutting a printing material in particular for cutting a paper web, is formed only in those subregions of a printing material or a paper web in which a guide device is not in contact with the printing material or a paper web Has.
  • a cut or partial section is produced by the cutting element only in those areas of a printing material or a paper web, in which a guide device has no contact with the printing material or to a paper web. It can thus be produced, for example, a perforation of a printing material or a paper web or a first partial section of a printing material or a paper web, which is later expanded or supplemented to a complete cut (separating cut) of a printing material or a paper web.
  • At least one guide device is designed as a ribbon cable.
  • a plurality of successively arranged cutting elements are provided which are formed for cutting a printing material or a paper web in subregions of a printing material, in particular a paper web, which transverse to the direction of the printing material or a paper web are offset from each other.
  • each of the cutting elements may be designed such that it produces a cut or partial cut only in those regions of a printing material, in particular a paper web, in which a guide device is not in contact with the printing material or to a paper web has.
  • each of the cutting elements for example, a perforation of a printing material or a paper web or by a first cutting element, a first partial section of a printing material or a paper web, which then by a second cutting element or other cutting elements to a complete cut of a printing material or a paper web is extended or supplemented.
  • the invention thus permits a shape-variable cut with simultaneously improved guidance of the printing material, in particular a paper web.
  • the folder may be provided with an aforementioned means a folding apparatus, wherein the folder has a plurality of, in the running direction of a printing material, in particular a paper web arranged in series or arranged parallel to each other folding devices.
  • This folder may be formed according to one or more features as described in this document.
  • each folding device is displaceable in at least one spatial direction, wherein the first folding device is displaceable in a first spatial direction and the second folding device is displaceable in a spatial direction perpendicular thereto.
  • at least one folding device is additionally displaceable in the second or in a third spatial direction, which is perpendicular to the first spatial direction.
  • a format-variable printing machine in particular a web-fed printing machine, can be provided with a device having one or more of the aforementioned technical features.
  • control device is designed to control and / or regulate a motorized actuating device of a cutting device with cutting elements, in particular with cutting blades.
  • control device is designed for controlling and / or regulating the actuating device as a function of prestored or precalculated control cams.
  • the cutting device has rotating cutting elements and the control device for controlling and / or regulating the actuating device is designed such that the cutting device can be operated per revolution with varying angular velocity, in particular such that upon contact of a cutting blade with the paper web the angular velocity is equal to the conveying speed of a printing material, in particular a paper web.
  • Paper sheets, foils, cardboard or sheets also conceivable.
  • Fig. 1 shows a format-variable printing machine in the form of a variable-size web press, in particular a variable-format heatset web press, for example, for book printing or commercial printing.
  • This has a roll changer 101, from which a paper web 108 is unwound as the printing substrate and is guided by printing units 102a, 102b. Subsequently, the paper web is guided to a folding apparatus 103, which has a web turning device 104, for example in the form of a turning bar device, a folding module 105, a cutting module 106 and a display module 107.
  • the folding module 105 can also be used be omitted or it can be at least bypassed, as will be described below in connection with the FIG. 16 ,
  • FIGS. 1 . 2 . 6 and 7 show means 103 for cutting paper webs 108 with a cutting module 106, which includes a cutting device 6 or cutting devices 6, wherein the cutting module 106 guide means 206, 208, the at least partially planar guide portions F1, F2 for guiding the paper web 108 by the cutting module 106, or movable guide areas F1, F2, which have movable guide elements with a paper web 108, which are designed so that they move together with a paper web at least in the guide area in the running direction of the printing material or the paper web.
  • a guide means 206, 208 encloses a cutting element 207, 209 of a cutting device 6. It can be provided that the cutting element 207, 209 is designed to cut a paper web 108 only in those partial areas TB1, TB2 of a paper web 108 in which a guide device 206, 208 has no contact with a paper web 108. These subregions TB1, TB2 are particularly in the FIG. 7b) shown.
  • each of the cutting elements 207, 209 is designed such that it produces a cut or partial section only in those regions of a paper web 108 in which a guide device 206, 208 has no contact with the printing material, in particular with a paper web.
  • the cutting elements 207, 209 for example, a perforation of a paper web are generated or generated by a first cutting element 207, a first partial section a of a paper web (see Fig. 7b )), which is then expanded or supplemented by a second cutting element 209 or other cutting elements to a complete cut b a paper web. It need not be the cutting elements 207, 209 offset in total to one another, it is sufficient if required for the cutting elements of the cutting elements 207, 209 such as blades or part-cutting blade 16 or blade sections or cutting blade sections of a transverse to the direction L of a paper web 108 interrupted Cutting blade 16 are offset from each other.
  • the cutting blade 16 can have as many partial cutting blades as partial areas TB1, TB2 are provided transversely to the direction L of a paper web 108.
  • the guide means 206, 208 have movable guide regions F1, F2, this being realized in that the guide means 206, 208 comprise movable guide elements FE1, FE2, which are movable together with a printing material, in particular with a paper web 108.
  • the guide elements FE1, FE2 can be designed so that they move together with a paper web 108 at least in the guide region F1, F2 in the direction L of the paper web 108, in particular at the same speed with which the paper web 108 in the direction L of Paper web moves. This speed can also be determined by the movement of the guide elements FE1, FE2 in the guide areas F1, F2, for example by actively driven guide elements FE1, FE2.
  • FIG. 7 it is shown that the guide elements FE1, FE2 can be formed as bands.
  • the endless paper web 108 thus runs in the direction L in a first guide means 206, which is designed as a ribbon cable.
  • This first guide device 206 is guided around a first cutting device 6 with first cutting elements 207 in the form of cutting cylinders.
  • the speed of the guide elements FE1, FE2 formed as bands is identical in the guide areas F1, F2 in the running direction L or approximately identical to the speed of the paper web 108 in the running direction L in the guide areas F1. F2.
  • the first cutting elements 207 in the form of cutting cylinders perform in the subregions TB1 a first, interrupted section a between the individual guide elements FE1 formed as bands.
  • the cutting blade 16 of the first cutting elements 207 has blade sections or a broken blade, which is arranged or designed such that a partial cut is produced only in the partial areas TB1. It can be provided that only during the cutting process is there a synchronous or nearly synchronous speed between the cutting blade 16 of the first cutting elements 207 and the paper web 108, as described below for the corresponding angular velocities. At other times, the cutting blade 16 of the first cutting elements 207 may have a lead or lag with respect to the paper web or the speed of the paper web in the running direction L. During the pre-lag phase, there is no contact between the cutting blade 16 of the first cutting elements 207 and the paper web 108.
  • the paper web 108 now provided with a partial section a or a perforation a in the subregions TB1, leaves the first guide device 206 and is taken over by the second guide device 208.
  • This second guide device 208 is guided around a second cutting device 6 with second cutting elements 209 in the form of cutting cylinders.
  • the - in particular but not necessarily designed as bands - movable guide elements FE1 the first guide means 206 mesh with the - in particular but not necessarily designed as bands - movable guide elements FE2 of the second guide means 208, as in FIG. 7b) shown.
  • the paper web 108 is guided permanently by the guide device 206, 208, in particular by the guide elements FE1, FE2 in the direction of travel L of the paper web 108.
  • the cutting blade 16 of the second cutting elements 209 has blade sections or a broken blade, which is arranged or designed such that a further partial section is produced only in the partial areas TB2.
  • the two partial sections of the cutting blades 16 of the first and second cutting elements 207, 209 add up to a complete separating cut b, which separates a sheet B1 from the paper web 108.
  • the speed of the guide elements FE2 formed as bands is identical or approximately identical to the speed of the paper web 108 in the direction L in the guide areas F2 in the guide areas F2 in the direction L, but may also be slightly greater than the speed of the paper web 108 in the direction L in the guide areas F2. It may be provided that only during the cutting process is there a synchronous or nearly synchronous speed between the cutting blade 16 of the second cutting elements 209 and the paper web 108, as described below for the corresponding angular velocities. At other times, the cutting blade 16 of the second cutting elements 209 may have a lead or lag with respect to the paper web or the speed of the paper web in the running direction L. During the pre-lag phase, there is no contact between the cutting blade 16 of the second cutting elements 209 and the paper web 108.
  • the first and second cutting elements 207, 209 as well as the guide means 206, 208 and the movable guide elements FE1, FE2 can each be driven by their own motors 28 and / or driven by their own variators and / or some or all of the first and Second cutting elements 207, 209 as well as the guide means 206, 208 driven by a common motor 28 and / or common variators.
  • the Fig. 4 shows that the printing units 102a, 102b have printing devices 109, 109a, 109b, all of which are free of rotating printing cylinders.
  • the printing devices 109, 109a, 109b are designed for the contactless application of printing ink to the paper web 108.
  • the printing devices 109, 109a, 109b can be embodied as inkjet printing devices 109, 109a, 109b or, for example, as toner-based printing devices 109, 109a, 109b or other printing devices 109, 109a, 109b, which manage without fixed printing plates ,
  • Fig. 2 . 6 and 7 show again the web press Fig. 1 with an associated control device 20.
  • the control device 20 is provided on the one hand for controlling and / or regulating the pressure devices 109, 109a, 109b.
  • the control device 20 is at least also provided for controlling and / or regulating a - at least one cutting device 6 for cutting at least part of the paper web 108 - here motor-driven.
  • the cutting device 6 is after Fig. 2 and 6 and 7 such as Fig. 15 formed as a cutting blade cylinder 207, 209 with cutting blades 16, wherein the cutting blade cylinder 207, 209 rotates during operation of the web printing press and thereby brings the cutting blade 16 in regular contact with the paper web 108.
  • the motor actuator 28 is according to FIG. 2 and Fig. 15 designed as a drive motor.
  • the control and / or regulation of the actuating device 28 takes place as a function of printing format settings 25, 26 for the printing devices 109, 109a, 109b.
  • the control device 20 is designed to control and / or regulate the motorized actuating device 28 as a function of prestored or precalculated control cams 27.
  • control device 20 has a computing device or data device 24 designed as a data memory, in which control cams 27 are stored or calculated.
  • the variation of the angular velocity wS, wS 'now takes place Fig. 3 such that upon contact of a cutting blade 16 with the paper web at time tK, the angular velocity wS, wS 'of the cutting device 6 and thus also of each cutting blade 16 - or more precisely the tangential component of the rotational speed of the contacting cutting blade 16 in the direction of travel of the paper web at time tK - Equal to the conveying speed vB of the paper web 108, that is equal to the speed vB, with which the paper web 108 moves through the printing press.
  • the rotational speed is adjusted per revolution of the rotating cutting device so that at least when the contact between the cutting blade 16 and the paper web 108 are both equally fast, there is no relative velocity between the two at the point of contact. If, in this case, the angular velocity wS of the cutting device 6 and thus also of each cutting blade 16 - or more precisely the tangential component of the rotational speed of the contacting cutting blade 16 in the running direction of the paper web 108 is smaller than the conveying speed vB of the paper web 108, then at the time tK of the contact between Cutting blade 16 and paper web 108 towards an acceleration of the cutting blade 16 on conveying speed vB.
  • the angular velocity ws' of the cutting device 6 and thus also of each cutting blade 16 - or more precisely, the tangential component of the rotational speed of the contacting cutting blade 16 in the direction of the paper web 108 is greater than the conveying speed vB of the paper web 108, then at the time tK of the contact between Cutting knife 16 and paper web 108 toward a delay of the cutting blade 16 on conveying speed vB. As a result, a tearing or picking of the paper web 108 is avoided in each case.
  • the control device 20 has a control and / or regulating module 21, which communicates with the data device 24 and with the pressure devices 109, 109a, 109b and the motorized actuating device 28 - ie the drive motor - the cutting device 6 in terms of data technology.
  • Fig. 2 shows Fig. 2 in that the control device 20 has or can at least comprise a further data memory 22 in which print format settings 26 are stored and which is connected to the control and / or regulating module 21 via a data-technical connection.
  • print format settings 26 may be in the form of prestored data on print image formats or printed page formats, in particular in the form of data on the length (extent in the direction of travel of the paper web 108) and / or width (extent in the direction transverse to the paper web 108), but also for the alignment (distance of the print image from the edge of the paper web 108, distances between the print images, angle between the image longitudinal edge and the direction L of the paper web 108) to be stored.
  • control device has or can at least comprise a data processing device 23 in which print format settings 25 can be calculated and / or processed, in particular in the form of data on the length (extension in the direction of travel of the paper web 108) and / or the width (extension in the direction transverse to the paper web 108), but also to the orientation (distance of the print image from the edge of the paper web 108, distances between the print images, angle between the image longitudinal edge and the direction L of the paper web 108).
  • pre-stored data on print image formats or printed page formats stored in the data memory 22 can be read out, changed and / or edited, and / or new or modified data can be transmitted to other print media via other interfaces. Formats or printed page formats are read in via the data processing device 23 and transmitted via a data link to the control and / or regulating module 21 of the control device 20.
  • FIG. 4 now shows an example of the internal structure of the printing units 102a, 102b.
  • the paper web 108 is guided successively through the printing units 102a, 102b, for example via suitable deflection rollers or other web guiding elements.
  • the paper web 108 via web guide elements 130, such as support rollers, which are adjacent to the printing devices 109a, 109b.
  • web guide elements 130 such as support rollers, which are adjacent to the printing devices 109a, 109b.
  • These web guide elements 130 or support rollers are opposite the printing devices 109a, 109b on the other side of the paper web 108.
  • the web guide elements 130 or support rollers serve to guide the paper web 108 and to ensure that in each case a predefined distance between the paper web 108 and the printing devices 109a, 109b is maintained.
  • This distance can basically be fixed, but it can also be controlled or regulated by a control device such as the control device 20, for example by the fact that the printing devices 109a, 109b or the web guide elements 130 are displaceable perpendicular to the web plane of the paper web 108, as by the double arrows in Fig. 4 indicated.
  • a control device such as the control device 20, for example by the fact that the printing devices 109a, 109b or the web guide elements 130 are displaceable perpendicular to the web plane of the paper web 108, as by the double arrows in Fig. 4 indicated.
  • FIG. 4 further shows at least one respective dryer 110, which is each downstream of one of the printing units 102a, 102b in the direction of the paper web 108 L.
  • the direction of travel L of the paper web in the context of this invention does not define a global fixed plane in space, because the paper web 108 undergoes several changes of direction and possibly also wraps, such as Fig. 1 clearly shows. However, it is for the expert locally - ie for each web section of the paper web 108 - each a clear spatial direction from the local direction L of the paper web 108 determined.
  • FIG. 4 shows an embodiment in which each dryer 110 is structurally integrated into a printing unit 102a, 102b.
  • Each dryer 110 can be structurally or spatially integrated into a printing unit 102a, 102b in such a way that influencing of the printing devices 109a, 109b by the dryer operation is avoided.
  • each of the dryers 110 can be arranged spatially above the pressure devices 109a, 109b of the respective printing unit 102a, 102b. This avoids the risk of the resulting heat rising and undesirably heating the pressure devices 109a, 109b.
  • the dryer 110 can also be arranged below the printing devices 109a, 109b of the respective printing unit 102a, 102b.
  • FIG. 5 and FIG. 6 show in each case exemplary embodiment of a folding apparatus 103, which is downstream of the printing units 102a, 102b or printing units 102a, 102b can be arranged downstream and after Fig. 5 and 6 a plurality, in the running direction L of the paper web 108 arranged in series folding devices T1, T2 in the form of formers has.
  • the folding devices T1, T2 are each arranged in a funnel module TM1, TM2.
  • TM1, TM2 As in Fig. 16 will be explained, but in the context of the invention can also be dispensed with the folding devices T1, T2 or these can be at least bypassed.
  • Folding apparatus 103 includes a web turning device 104, for example in the form of a turning bar device, a folding module 105 (can also be as exemplary in embodiment of Fig. 16 omitted), a cutting module 106 and a display module 107.
  • a web turning device 104 for example in the form of a turning bar device
  • a folding module 105 can also be as exemplary in embodiment of Fig. 16 omitted
  • a cutting module 106 and a display module 107.
  • Cutting module 106 and display module 107 include in the example of the Figures 5 and 6 the following - but not mandatory - components: a first train group 1 (driven in the example by a separate motor), a strand separation device 2, a second train group 3, an optionally optional cutting register camera 4 for optical monitoring of the operation and function of the cutting device 6 and Delivery of appropriate monitoring data to the control device 20, a small train group 5, a cutting device 6 with drive motor 28, a paper sheet transport element 131 in the form of a ribbon cable, a Abschwenkvorides 7 for the paper sheet transport element 131, a (on product length or print format) adjustable Belt roller 8, a drive 9 for the ribbon cable 7, a device 10 for slowing down the transport movement of paper sheets B1, B2, B3 ...
  • a transfer device 211st to take over the paper sheets on a ribbon cable a Paper sheet delivery, adjustable to the respective format length of the paper sheets and a tape retarder 212 of the tape line in the delivery.
  • the folding module 105 is formed so that each folding device T1, T2 - ie each former - in at least one spatial direction R1, R2 is displaceable, wherein the first folding device T1 - ie the first former - a first spatial direction R1 parallel to the plane of the drawing (double arrow) is displaceable and the second folding device T2 - ie the second former - in a perpendicular spatial direction R2 perpendicular to the plane (arrowhead represented by circle with point, arrow end represented by circle with cross) is displaceable.
  • a change in the width of the paper web 108 by moving the first folding device T1 - ie the first former - in the first spatial direction R1 parallel to the plane of the drawing are compensated so that the center of the folded paper web 108 again exactly on the fold line (dashed line ), which leads to the tip of the second folding device T2 - ie the second former - leads.
  • the relative position and arrangement of the paper-sheet transport element 131 in the form of a ribbon cable does not have to be adapted to changed printing formats and paper web widths or paper web guides, as is the case with the DE 40 30 863 A1 the case is.
  • Fig. 8 shows, in addition, the first folding device T1 - ie the first former - additionally in the second spatial direction R2 perpendicular to the plane (arrowhead represented by circle with point, arrow end represented by circle with cross) displaced.
  • an asymmetric, that is, off-center web guide of the paper web can be compensated by the printing devices with simultaneous variability of the web widths and print formats by the biaxial displaceability, without the components 1 to 12 of downstream in the direction of the paper web 108 post-processing device 103a to changed print formats and paper web widths or paper web guides adapted (eg spatially shifted) must be.
  • a partially wide web can be guided through the printing units 102a, 102b, specifically in such a way that it is not guided centrally or symmetrically by the pressure units 102a, 102b, but rather off-center or asymmetrically.
  • the offset of the center of the paper web 108 against the center of the printing units 102a, 102b can then be compensated by moving the first folding device T1 - ie the first former - in the second spatial direction R2 perpendicular to the plane of the drawing.
  • the folder 103 or the post-processing device 103a has a paper-sheet transport element 131 with a drive 9 - here in the form of a motor - on.
  • the drive 9 is controlled or regulated in such a way by the control device 20 or a separate control device that separated by the cutting device 6 from the paper web 108 sheets of paper B1, B2, B3, B4, B5, B6 away from the remaining paper web 108 in the direction L of Paper web 108 are accelerated.
  • This is in Fig. 15 shown and can in principle also in a folder according to the FIGS. 1 . 2 . 6 and 7 be realized.
  • the paper sheet transport element 131 is then a device 10 with a drive 11 - downstream here - in the form of a motor.
  • the drive 11 is controlled or regulated by the control device 20 or a separate control device in such a way that a slowing down of the transport movement of the previously accelerated paper sheets B1, B2, B3, B4, B5, B6 takes place.
  • the device 10 is designed such that, in addition to the slowing down, raising or lowering of at least part of the paper sheets B1, B2, B3, B4, B5, B6 causes the paper sheets B1, B2, B3, B4, B5, B6 to flare up to achieve, as in Fig. 17 shown. This is done after Fig.
  • Fig. 17 shows how the individual paper sheets B1, B2, B3, B4, B5, B6 are pushed together into a scale. Subsequently, this scale in a downstream collator to a stack of superimposed sheets of paper 1 .... 6 compacted, for example, to a book block and if necessary then the side edges are trimmed again to obtain a stack of individual sheets, for example in the form of a conventional book as a final printed product of a letterpress production. View X shows a top view of this stack. It shows in the example Fig. 17 each sheet has two printed pages. This corresponds to the result of a production type Fig. 12 ,
  • Figures 12 and 13 show production modes with the aforementioned invention, in which a (full width) paper web 108 is cut by a slitter 26 for dividing the paper web 108 into partial webs TB and then successively over two formers (indicated by triangles) is guided, as in Fig. 9 and 10 shown. Each partial web TB is then subsequently cut by the cutting device 6 into paper sheets B1, B2.
  • the folding apparatus 103 does not necessarily have to have a folding module 105 with folding devices T1, T2. In a particular embodiment can also be dispensed with the folding module 105 or it can be at least bypassed. This can in a device or production of the folding apparatus 103 after Fig. 16 respectively. All that is required for this purpose is a web turning device 104, which is arranged downstream of the printing units 102a, 102b and has a plurality of longitudinal cutting devices 26 for dividing the paper web 108 into partial webs TB, and also a folding hopeless postprocessing device 103a according to FIGS.
  • the partial webs TB produced in the web turning device 104 are no longer folded, but these are merely cut by the cutting device 6 into paper sheets B1, B2, B3 - possibly after some or all of the part webs TB by corresponding devices such as turning bars in the web turning device 104 were superimposed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
  • Handling Of Sheets (AREA)
  • Rotary Presses (AREA)
EP10008872.3A 2009-08-28 2010-08-26 Dispositif a format variable pour decouper des produits imprimes ainsi que appareil de pliage et machine a imprimer avec un tel dispositif Active EP2308681B1 (fr)

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DE102009039278A DE102009039278A1 (de) 2009-08-28 2009-08-28 Formatvariable Rollendruckmaschine

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EP2308681A2 true EP2308681A2 (fr) 2011-04-13
EP2308681A3 EP2308681A3 (fr) 2011-09-28
EP2308681B1 EP2308681B1 (fr) 2023-10-04

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EP20100008454 Withdrawn EP2305468A1 (fr) 2009-08-28 2010-08-13 Presse rotative à format variable
EP20100008499 Withdrawn EP2308684A1 (fr) 2009-08-28 2010-08-14 Presse rotative à format variable
EP20100008498 Active EP2305466B1 (fr) 2009-08-28 2010-08-14 Presse rotative à format variable
EP10008872.3A Active EP2308681B1 (fr) 2009-08-28 2010-08-26 Dispositif a format variable pour decouper des produits imprimes ainsi que appareil de pliage et machine a imprimer avec un tel dispositif

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EP20100008499 Withdrawn EP2308684A1 (fr) 2009-08-28 2010-08-14 Presse rotative à format variable
EP20100008498 Active EP2305466B1 (fr) 2009-08-28 2010-08-14 Presse rotative à format variable

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EP2862716A2 (fr) 2013-10-17 2015-04-22 manroland web systems GmbH Procédé et dispositif destinés au traitement d'une bande de matériau à imprimer
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EP2308681B1 (fr) 2023-10-04
EP2308681A3 (fr) 2011-09-28
DE102009061056A1 (de) 2011-06-16
EP2305468A1 (fr) 2011-04-06
EP2308684A1 (fr) 2011-04-13
US8827397B2 (en) 2014-09-09
US20110058885A1 (en) 2011-03-10
US20110050767A1 (en) 2011-03-03
EP2305466A1 (fr) 2011-04-06
DE102009039278A1 (de) 2011-06-01
EP2305466B1 (fr) 2014-01-22

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