EP2028004A2 - Presse pour l'impression multicolore dotée d'un dispositif de revêtement en amont - Google Patents

Presse pour l'impression multicolore dotée d'un dispositif de revêtement en amont Download PDF

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Publication number
EP2028004A2
EP2028004A2 EP20080161773 EP08161773A EP2028004A2 EP 2028004 A2 EP2028004 A2 EP 2028004A2 EP 20080161773 EP20080161773 EP 20080161773 EP 08161773 A EP08161773 A EP 08161773A EP 2028004 A2 EP2028004 A2 EP 2028004A2
Authority
EP
European Patent Office
Prior art keywords
printing
calendering
roll
cylinder
drive
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.)
Withdrawn
Application number
EP20080161773
Other languages
German (de)
English (en)
Inventor
Rainer Gebhardt
Matthias Holder
Thomas Walther
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 AG
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
Application filed by Manroland AG filed Critical Manroland AG
Publication of EP2028004A2 publication Critical patent/EP2028004A2/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • B41F23/08—Print finishing devices, e.g. for glossing prints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/004—Electric or hydraulic features of drives
    • B41F13/0045—Electric driving devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/001—Apparatus or machines for carrying out printing operations combined with other operations with means for coating or laminating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F25/00—Devices for pressing sheets or webs against cylinders, e.g. for smoothing purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control

Definitions

  • the invention relates to a printing machine for multicolor printing with an upstream coating device according to the preamble of claim 1.
  • a precoat as a coating on substrates in a printing machine, such as a sheet-fed rotary printing press, apply.
  • a precoat (coating) may be an opaque white, but also a varnish, for example an effect varnish, such as a pearlescent lacquer, which is dried after application and overprinted in the same printing process in the sheet-fed rotary printing press.
  • the precoat can be done partially, for example over a recessed coating plate, or over the entire surface.
  • Out EP 0 620 115 A1 is a device for inline coating of sheet-shaped substrates in offset printing known, which is arranged in a training in the conveying direction of the printing material in front of the first printing unit of an offset printing machine for multi-color printing.
  • this device preferably designed as a flexographic printing unit, basecoats, for example in the form of opaque white, can be applied to the printing substrate before multicolor printing.
  • a further embodiment of such a printing unit upstream of a printing unit finishing unit is in the US 2004/0079246 disclosed.
  • a cause of the uneven layer application is, for example, in the thread formation during the splitting processes between two rolls or cylinders.
  • the coating material preferably paint, varnish or precoating, formed during the separation of the coating film in the gap between two rotating surfaces or between applicator roll or cylinder and substrate threads that tear off after a certain time and indiscriminately on snap back the surfaces involved in the cleavage. Since moisture is simultaneously removed from the coating material in the gap between the application roller / cylinder and printing material by the displacement of the solvent or water, the viscosity increases very rapidly and the coating material can no longer flow away.
  • the roughness of the substrate prevents a complete flow of the local inhomogeneities with a relatively thin coating thickness.
  • the consequence of this is a relatively high surface roughness, which locally influences the formation of gloss, but also the ink acceptance.
  • a calendering apparatus for a printing press is disclosed. Explicitly described in this patent the equalization of a paper coating in a printing press.
  • the calender has a preferably releasably arranged high-gloss and polished plate. The calender can be heated directly or indirectly.
  • the invention is based on the object to improve a printing machine of the type mentioned in such a way that a substrate is provided during the printing run by the printing machine with a smooth, uniform coating before this substrate passes the nip of a downstream printing unit.
  • a calendering device is arranged downstream of this coating device in the conveying direction of the printing material as a device for surface treatment.
  • the calendering follows in the conveying direction, the first of the printing units for multi-color printing.
  • a drying device is arranged between the coating device and the calendering device so that the printing material provided with a coating is perceptibly dried or hardened and, in a relatively dry or hardened state, the subsequent calendering device passes in the press nip.
  • the calendering device with a roller or a cylinder, for example, an impression cylinder, is formed, which / which forms a bearing surface on which a substrate over the format width is guided surface resting. Furthermore, at least one calender roll, which presses onto the printing substrate surface with a defined relative force, is provided. From the aspect of the drive, this is at least one calender roll mechanically from the roller leading to the printing material or the cylinder leading to the printing material is decoupled and driven directly by a single drive. Due to the single drive, a defined relative speed can be achieved during the passage of the printing material through the press nip of the calendering device.
  • the speed of the calender roll can be tracked by means of position-controlled individual drive so that when the next printing material or subject arrives, the starting point of the calender roll returns to the printing roll or substrate or cylinder is synchronized (synchronous peripheral speeds).
  • the at least one calender roll can be driven during the passage through the press nip at a deviating, preferably reduced circumferential speed (in relation to the roll / cylinder leading to the printing substrate).
  • the at least one calender roll is accelerated by means of controllable individual drive in order to synchronize the calender roll with the roll carrying the printing material or the cylinder leading the printing material at its peripheral speed.
  • a smoothing of the coating on the printing material can be achieved in a first embodiment by a high radial pressure.
  • a high radial pressure for this purpose, preferably calender rolls are used with a high bending stiffness.
  • this can also be achieved by deviating peripheral speeds (relative speed) between the at least one calender roll and the associated roll or the associated cylinder.
  • peripheral speeds relative speed
  • the relative speed can be entered once by user input, for example, at the control station of the press.
  • the printer could, for example, with a glossmeter or a device for determining the Surface roughness Determine measured values that serve as the basis for specifying the relative velocity.
  • the relative speed can be adjusted from 0 to 10%.
  • a calender roll with a high radial pressure combined with a roller leading to the printing material or the peripheral cylinder leading to the printing material can be operated.
  • a suitable donor e.g. a gloss meter or an optical surface roughness device one or more characteristics for controlling the calender determined.
  • a control signal for the circumferential speed of the calender roll during the passage of the printing material through the press nip can be generated via a characteristic curve or a calculation algorithm stored in a control.
  • the radial pressure between the calender roll and the roller or cylinder leading to the printing material can also be adjusted via the characteristic values determined by the sensor.
  • a calender roll can be designed as a solid roll or as a roll on which a smoothing plate is clamped with a defined roughness.
  • a sleeve may be arranged in sleevetechnik.
  • a safety-relevant event occurs, for example in the event of failure of a single drive, there may be a collision in the calendering device, in particular in sheet guiding cylinders with sheet holding means.
  • the at least one calender roll can be swiveled over an error signal which triggers an error regime, for example, so that the contact of the calender roll with the printing material is temporarily suspended in the press nip.
  • the shutdown can be done pneumatically, electrically via a motor or a linear drive.
  • the at least one Calender roller mechanically, preferably by means of a clutch in the gear train of the main drive, are engaged.
  • the single drive is simultaneously switched torqueless by the machine control.
  • the sheet-fed printing machine for multi-color printing comprises a rotary printing press with a plurality of identical printing units A to C, in the present embodiment for the single-sided straight printing.
  • Each of the printing units A to C has in a known manner designed as a sheet guiding cylinder impression cylinder 1, a blanket cylinder 7, a plate / forme cylinder 6 with associated inking unit 4 and, if necessary, a dampening unit 5.
  • the sheet-fed printing machine according to Fig. 1 in addition to the counter-pressure cylinders 1, a plurality of transfer cylinders 2, which may be formed as needed, as one or more turning means for the purpose of realizing a two-sided perfecting.
  • These means 1, 2 for sheet transport wear in a known manner sheet holding means, such as grippers, suckers, etc.
  • the impression cylinder 1 and the transfer cylinder 2 based on a single-sized plate / forme cylinder 6, designed with double-sized diameter.
  • Fig. 1 is in the conveying direction 10, the first printing unit A upstream of a first coating device X.
  • This coating device X comprises a counter-pressure cylinder 1 designed as a sheet-guiding cylinder, to which the sheet material is fed, for example, from a feeder, and to a plate / forme cylinder 6 and a metering device 8.
  • the metering device 8 can be designed as a chamber doctor blade system with anilox roll or as a roll mill (two-roll or three-roll mill;
  • the plate / forme cylinder 6 can carry, for example, a flexographic printing form (spot coating) or a rubber blanket (full-surface coating).
  • the impression cylinder 1 of the coating unit X is a drying device 9 in the conveying direction 10 after the coating gap, formed by plate / forme cylinder 6 and impression cylinder 1, assigned in a, preferably variable distance. If required, a dryer section formed from, for example, transfer cylinders 2 with dryer devices 9 may additionally be arranged downstream of the coating unit X (not shown).
  • the coating device X especially the impression cylinder 1 is followed in the conveying direction 10 at least one transfer cylinder 2 and the additional dryer section and then follows a calendering 3.
  • This calendering 3 comprises a printing material, here a sheet material, leading impression cylinder 1 with at least one of the impression cylinder 1 associated , First calender roll 11.
  • a second calender roll 12 downstream and also associated with the impression cylinder 1.
  • At least one of the calender rolls 11, 12 preferably carries a clampable screed plate and forms with the adjacently associated, the sheet material leading impression cylinder 1 each have a press nip 16.
  • Each of the calender rolls 11, 12 is on / ab sensible and with a predetermined radial force during the passage of the sheet material formed by the press nip 16 and the press nips 16.
  • the on the sheet material leading counter pressure cylinder 1 seated calender rolls 11, 12 may be formed individually or both indirectly or directly heated.
  • the two calender rolls 11, 12 are mechanically separated from a main drive 18 with common gear train 17 of the printing press and are individually or in groups by a first and a second individual drive 13, 14, in particular one electric motor, with drive controller in conjunction with signals Angle encoder can be driven according to predetermined target position values.
  • the main drive 18 is formed by at least one, a drive in the gear train 17 feeding electric motor and coupled to a higher-level machine control 15 circuit and data technology.
  • the gear train 17 comprises at least all the sheet guiding cylinders 1, 2 and blanket cylinder 7.
  • the plate / forme cylinder 1 can be mechanically coupled to the gear train 17 or each with a single drive connected to the machine control 15.
  • each calender roll 11, 12 can be coupled to its own individual drive 13, 14.
  • both calender rolls 11, 12 can be coupled together with only one of the individual drives 13, 14, for example the first individual drive 13.
  • Each of the individual drives 13, 14 is further coupled circuitry and signal technology with a higher-level machine control 15, wherein each of the individual drives 13, 14 in a predeterminable manner with respect to the main drive 18 with gear train 17 can be driven.
  • the individual calender roll for example the calender roll 11, or the calender rolls 11, 12 by means of a single drive, for example, the single drive 13, or by means of the individual drives 13, 14 with a peripheral speed of the associated impression cylinder 1 deviating peripheral speeds (relative speed) can be driven.
  • the peripheral speeds can additionally differ between the two calender rolls 11, 12.
  • the calender rolls 11, 12 used have a defined, adjustable radial force, which acts on the sheet material guided on the impression cylinder 1.
  • At least one sensor is arranged, which detects or detects the degree of gloss and / or the surface roughness of the sheet material coated in the coating device X. From the determined values, control signals can be generated via characteristic curves, expert systems or other calculation algorithms. These control signals are to at least one of the individual drives 13, 14 of the calender roll 11 and the calender rolls 11, 12 can be supplied, such that the peripheral speed and / or the radial force of the calender rolls 11, 12 is or are adjustable to the sheet material.
  • the encoders are circuit and signal technology coupled to the higher-level machine control 15.
  • the at least one calender roll 11, alternatively both calender rolls 11, 12, individually or together with a deviating to the peripheral speed of the impression cylinder 1 of the calender 3 peripheral speed can be driven.
  • the circumferential speed of the respective calender roll 11, 12 can be tracked by means of position-controlled single drive 13, 14 such that when the next sheet material or subject arrives, the starting point of the calender roll 11, 12 returns to the press roll or substrate or cylinder is synchronized (synchronous peripheral speeds).
  • the respective calender roll 11, 12 assumes a peripheral speed deviating from the peripheral speed of the impression cylinder 1.
  • the embodiment is not limited to the present example. Rather, according to Fig. 1 the last printing unit C in the conveying direction 10 more printing units, turning devices, processing stations and a boom (not shown) follow. If necessary, in the conveying direction 10 last printing unit C for multi-color printing in Perfecting be a turning device for the substrate to be arranged downstream. This turning device is followed by a further coating device with a drying device, to which a second calendering device can be arranged downstream. The second calendering device is preferably designed identical to the first calendering device 3. This additional calendering device is followed by further printing units for the multi-color printing in perfecting. These additional units, such as turning device, coating device, drying device and printing units for the perfecting can be identical to those already described Units turning device, coating device X, drying device 9 and printing units A - C be formed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Quality & Reliability (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP20080161773 2007-08-18 2008-08-05 Presse pour l'impression multicolore dotée d'un dispositif de revêtement en amont Withdrawn EP2028004A2 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102007039125A DE102007039125A1 (de) 2007-08-18 2007-08-18 Druckmaschine für den Mehrfarbendruck mit einer vorgeordneten Beschichtungseinrichtung

Publications (1)

Publication Number Publication Date
EP2028004A2 true EP2028004A2 (fr) 2009-02-25

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EP20080161773 Withdrawn EP2028004A2 (fr) 2007-08-18 2008-08-05 Presse pour l'impression multicolore dotée d'un dispositif de revêtement en amont

Country Status (3)

Country Link
EP (1) EP2028004A2 (fr)
JP (1) JP2009045936A (fr)
DE (1) DE102007039125A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11006011B2 (en) 2017-05-01 2021-05-11 Hewlett-Packard Development Company, L.P. Conditioner modules with calender rollers
CN114103257A (zh) * 2021-11-29 2022-03-01 东莞市青洋包装制品有限公司 一种纸盒生产用上光油系统

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009043518A1 (de) * 2009-09-29 2011-04-07 Steinemann Technology Ag Tintenstrahldrucker
CN115362064B (zh) * 2020-03-26 2024-11-05 东丽株式会社 印刷物的制造方法和印刷物

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036253C1 (fr) 1990-11-14 1992-10-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
EP0620115A1 (fr) 1993-04-16 1994-10-19 MAN Roland Druckmaschinen AG Dispositif de revêtement en ligne dans des machines d'impression
EP1287204B1 (fr) 2000-05-17 2004-03-03 MAN Roland Druckmaschinen AG Procede pour traiter la surface d'un substrat et dispositif pour mettre ledit procede en oeuvre
US20040079246A1 (en) 1995-08-14 2004-04-29 Williamson Printing Corporation Combined lithographic/flexographic printing apparatus and process
DE102004050725A1 (de) 2004-10-19 2006-04-20 Man Roland Druckmaschinen Ag Verfahren zum Transport von Bogenmaterial und Verarbeitungsmaschine dazu

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3334077A1 (de) * 1983-09-21 1985-04-04 Interprint Rotationsdruck GmbH & Co. KG, 5760 Arnsberg Verfahren und vorrichtung zum bedrucken eines drucktraegers
DE19757896A1 (de) * 1997-12-24 1999-07-08 Koenig & Bauer Ag Verfahren und Einrichtung zum Behandeln einer Papierbahn
DE20113639U1 (de) * 2001-08-17 2001-10-11 Man Roland Druckmaschinen Ag, 63069 Offenbach Beschichtungsmaschine zum Veredeln von Druckbogen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4036253C1 (fr) 1990-11-14 1992-10-15 Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De
EP0620115A1 (fr) 1993-04-16 1994-10-19 MAN Roland Druckmaschinen AG Dispositif de revêtement en ligne dans des machines d'impression
US20040079246A1 (en) 1995-08-14 2004-04-29 Williamson Printing Corporation Combined lithographic/flexographic printing apparatus and process
EP1287204B1 (fr) 2000-05-17 2004-03-03 MAN Roland Druckmaschinen AG Procede pour traiter la surface d'un substrat et dispositif pour mettre ledit procede en oeuvre
DE102004050725A1 (de) 2004-10-19 2006-04-20 Man Roland Druckmaschinen Ag Verfahren zum Transport von Bogenmaterial und Verarbeitungsmaschine dazu

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11006011B2 (en) 2017-05-01 2021-05-11 Hewlett-Packard Development Company, L.P. Conditioner modules with calender rollers
CN114103257A (zh) * 2021-11-29 2022-03-01 东莞市青洋包装制品有限公司 一种纸盒生产用上光油系统
CN114103257B (zh) * 2021-11-29 2022-06-14 东莞市青洋包装制品有限公司 一种纸盒生产用上光油系统

Also Published As

Publication number Publication date
JP2009045936A (ja) 2009-03-05
DE102007039125A1 (de) 2009-02-19

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