EP3251859B1 - Dispositif d'impression d'une bande de support - Google Patents

Dispositif d'impression d'une bande de support Download PDF

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Publication number
EP3251859B1
EP3251859B1 EP17167458.3A EP17167458A EP3251859B1 EP 3251859 B1 EP3251859 B1 EP 3251859B1 EP 17167458 A EP17167458 A EP 17167458A EP 3251859 B1 EP3251859 B1 EP 3251859B1
Authority
EP
European Patent Office
Prior art keywords
printing
web
modules
relative movement
guide element
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
EP17167458.3A
Other languages
German (de)
English (en)
Other versions
EP3251859A1 (fr
Inventor
Andreas MÜLLER
Dr. Burkhard Wolf
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP3251859A1 publication Critical patent/EP3251859A1/fr
Application granted granted Critical
Publication of EP3251859B1 publication Critical patent/EP3251859B1/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
    • 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
    • B41J3/54—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements
    • B41J3/543—Typewriters or selective printing or marking mechanisms characterised by the purpose for which they are constructed with two or more sets of type or printing elements with multiple inkjet print heads
    • 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
    • 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
    • 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
    • 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
    • B41J15/046—Supporting, feeding, or guiding devices; Mountings for web rolls or spindles for the guidance of continuous copy material, e.g. for preventing skewed conveyance of the continuous copy material
    • 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

Definitions

  • the present invention relates to a device for printing a web of printing material on a first and / or a second side with the features of claim 1.
  • the invention lies in the technical field of digital printing on web-shaped printing materials.
  • it is already known to print on web-shaped printing materials, for example made of paper, using the inkjet printing process.
  • the U.S. 5,878,320 discloses a printing machine for the digital printing of web-shaped printing material. Instead of inkjet printheads, however, electrophotographic printheads are used.
  • the document discloses an embodiment in which four print heads transfer a multicolored print image to an endless intermediate carrier.
  • the web-like printing material is brought into contact with the intermediate carrier at a first point and is thus printed on a first side.
  • the substrate is then guided over turning bars and turned over in the process.
  • the printing material is then brought into contact with the intermediate carrier a second time, but with the side that has not yet been printed, and the reverse side is printed in the process.
  • a structure corresponding to this exemplary embodiment requires a lot of installation space due to the use of the endless intermediate carrier.
  • the circumferential movement of the intermediate carrier and the transport movement of the web must be coordinated with one another in terms of control technology.
  • the DE 10 2014010 904 B3 discloses a printing machine for printing sheet-like printing material.
  • a digital printing unit is pivotably arranged in such a way that it can print both the front side and the rear side of a sheet.
  • the US 2011/0205316 A1 discloses a printing machine for printing on sheets which are fed past the same digital printing units twice. For this purpose, the sheets are guided on a loop of the transport path through a helical turning device.
  • the US 2014/0055548 A1 shows a thermal printer for duplex operation with a pivoting manifold.
  • the US 2006/0028524 A1 shows a printing machine with a transport path for sheet-like printing material.
  • the JP 2011/143628 discloses a printing method and a device for double-sided printing, a web of printing material being divided into web sections.
  • the US 2001/0021331 A1 discloses a duplex printer with a pivoting printing mechanism.
  • a device with the features of claim 1 represents a solution to this object or these objects according to the invention.
  • the device according to the invention advantageously requires little installation space and advantageously uses fewer components and control technology. As a result, the manufacturing costs can be reduced and the device can be operated in a space-saving manner.
  • a particular advantage of the invention can be seen in the fact that the printing modules print directly on the web and therefore an intermediate carrier with additional space requirements and control technology can be dispensed with.
  • This advantage is achieved in that the web is guided a first time and - after being turned - a second time through a respective part of an active area of the printing device with the printing modules directly printing the web.
  • the pressure modules transfer the pressure fluid to the web without an intermediate carrier. Finally, printed products can be finished from the web.
  • the first guide element and the second guide element are different from one another, i.e. not one and the same element.
  • the turning device is also preferably different from the two guide elements.
  • the two parts of the effective area are also preferably different from one another.
  • a further advantage can be seen in the fact that the invention makes it possible to control how little waste is generated during the execution of the relative movement or how productive the device or a printing press equipped with it is by means of the amount of the relative movement.
  • a further development of the invention which is preferred due to the simplicity and speed of implementation can be characterized in that the relative movement is a pivoting movement. It can be provided that the two guide elements are mounted pivotably about a common pivot axis. It can also be provided that the pivot axis lies on the side of the guide elements facing away from the pressure modules.
  • a preferred development of the invention can be characterized in that the relative movement is a linear movement and is essentially parallel to the web running direction present in the effective area.
  • the solution has the advantage that the pressure modules can be arranged without mutual inclination to one another and therefore compact.
  • the printing modules are inkjet print heads and that the printing fluid is ink.
  • a preferred development of the invention can be characterized in that there is at least one drive which generates the relative movement. It can be provided that the drive moves the at least one printing module and / or the at least one guide element at a speed at which less waste is generated than a limit value for waste is established.
  • a preferred further development of the invention can be characterized in that the effective area of the printing device is composed of the effective areas of the pressure modules. It can be provided that the relative movement is a movement along at least the effective areas of two pressure modules.
  • the invention also relates to a printing press which comprises at least one device for printing a web of printing material, the device being a device according to the invention or one of its preferred developments or a specific exemplary embodiment.
  • Figure 1A shows schematically a device 1 for printing a web of printing material, wherein the device can be part of a printing machine 2, preferably an inkjet web printing machine.
  • the printing material web 6 for example a paper or film web
  • the web is guided in a web running direction 7 from an unwinder 3 to a winder 4.
  • the web is guided around several rollers 8.
  • the web has a first side 6A and a second side 6B. With the device shown it is possible to print on both sides of the web 6A, 6B.
  • the device 1 also has a controller 5 which controls the web run and the printing device 10.
  • the printing device 10 comprises three digital printing modules 11, 12 and 13, which are preferably designed as inkjet print heads. However, the printing device can also have more or fewer printing modules, but at least two.
  • the printing device is assigned an active area 20 which is composed of a first and a second part 20a and 20b.
  • the first and the second part of the active area of the printing device can in turn be composed of the active areas of the individual print modules, for example the shown active areas 21, 22 and 23 Printing device, transferred to the printing substrate web 6. In other words: the printing material is printed in the effective areas.
  • FIG. 12 also shows a first and a second guide element 40a and 40b for guiding the web 6.
  • the two guide elements can, for example, be designed as guide plates and generate supporting blown air and / or each have at least one roller, in particular a deflection roller.
  • the two guide elements preferably have curved surfaces.
  • the device 1 shown has a turning device 41 which turns the web 6 by means of preferably crossed turning bars 42 in a known manner, so that the web can be printed on the second guide element 40b on its reverse side or reverse printing side, while it is printed on the first guide element 40a on its Front side or face side is printed.
  • the device 1 has a web store 43, which comprises rollers that can be displaced relative to one another in a known manner, so that the printing substrate web 6, or a certain length section thereof, can be stored in the web store and removed from the web store.
  • the dimensioning of the path memory determines the length of the storable path section. If a web section of length L is to be printed without interruption on one side of the web and then printed on the opposite side, the web memory must be dimensioned in such a way that it can store at least the web section of length L (if necessary, minus possible stored web lengths on the other web path) .
  • the device 1 shown also has a first dryer 44 and a second dryer 45, each for drying the ink applied to the web 6 or both sides thereof.
  • the dryers can be, for example, UV dryers or IR dryers.
  • a swivel system 53 can be moved around a swivel axis 52 by means of a drive 51 and thereby a relative movement 50 (movement towards the end) for the printing device 10 or its printing modules 11, 12 and 13.
  • a comparison between the Figures 1A and 1B clearly shows how the swivel system 53 is arranged before and after the relative movement.
  • the pivoting system is in a first position (face printing position) in which the first guide element 40A is arranged at least partially adjacent to the printing device or the printing modules.
  • the web 6, which is guided by means of the first guide element 40A, therefore arrives with its front printing side 6a in the active area 20 of the printing device.
  • the web 6 is printed on the straight side, runs into the web memory 43 and is stored there. It can be provided for this purpose to stop the winder 4 or to rotate it only very slowly. After finishing the straight printing, the web 6 is removed from the web storage and made available for the perfecting. It can be provided for this purpose to stop the unwinder 3 or to rotate it only very slowly.
  • the pivoting system 53 is arranged in a second position (perfecting position) in which the second guide element 40b is arranged at least partially adjacent to the printing device 10 or the printing modules 11, 12 and 13.
  • the guide element reaches this position by a relative movement 50 in the opposite direction (backward movement).
  • the web 6 with its back pressure side 6b comes into the effective area of the printing device or the printing modules.
  • the device according to the invention therefore has the advantage of making it possible to print on both sides of the web with the same set of printing modules or of being able to save a second set of printing modules.
  • a sensor 56 can be provided in order to control the so-called reversal register, ie to control the relative position of the face print image and the reverse print image to one another.
  • the sensor can detect the face print image or register marks and initiate the printing of the reverse print image in a suitable manner.
  • the web When switching from straight printing mode to perfecting mode, or during its duration and i.e. During the duration of the relative movements 50, the web can run into the web memory 43 and can be removed from it again after the switchover.
  • the dimensioning of the web store, the transport speed of the web movement and the duration of the switching process can be coordinated.
  • At least one pressure module is preferably deactivated for a short time so that no pressure fluid gets onto the guide elements or into the gap between them.
  • the deactivation time is preferably chosen to be as short as possible in order to reduce the amount of waste (length of the web section that is not completely printed).
  • unprinted web 6 runs into web memory 43 and is stored there. Before the start of a new straight print (printing on the first web side 6a), the stored, unprinted web is removed from the web memory, but returned, i.e. in the direction of unwinder 3, moved.
  • a sensor 57 may be provided to monitor the return of the web and to stop it when it reaches the previously printed image (or images), i. to ensure an essentially seamless printing of the first web side 6a.
  • a linear system 54 with a slide 55 is provided here.
  • This also comprises a first and a second guide element 40a and 40b - each preferably arranged on the slide - and a drive 51, in particular a linear drive, for example a spindle drive for the slide.
  • a linear drive for example a spindle drive for the slide.
  • the two guide elements Preferably have flat, non-curved surfaces.
  • a linear adjustment movement of the guide elements is possible by means of the drive, so that in turn the face printing side 6a or the reverse printing side 6b of the web 6 can be brought into the active area or areas.
  • Unwinder and rewinder 3 and 4 guide rollers 8, turning device 41, web storage 43 and dryer 44 and 45 are corresponding Figure 1A and 1B executed.
  • Figure 3A shows schematically the device 1 in five different states a to e during the relative movement 50 or during the switchover from the straight printing mode to the perfecting mode.
  • the following applies to the values of the speeds in this example, provided they are not zero and are not being accelerated / braked:
  • the first printing module 11, the second printing module 12 and the third printing module 13 print ink on the face printing side 6a of the web 6. It can be seen that on the first side of the web or the face printing side, a first ink 71 of the first printing module, a second ink 72 of the second printing module and a third ink 73 of the third printing module come to rest.
  • this staircase is shown again and it can be seen that if the area of the staircase cannot be used as a printed product, an area 60 is generated which is to be regarded as waste.
  • the area 60 of the waste or its length M depends, as can be seen, on the length of the steps and can be reduced by a higher speed v1 of the relative movement during the adjustment process.
  • the controller 5 can therefore execute the relative movement at a speed which is so high that the waste 60 has a length M which is less than a predetermined limit value M 'for the length of the waste M.
  • M ' for the length of the waste M.
  • v1 approaches infinity
  • M goes to zero.
  • the remaining steps then correspond to the distances between adjacent printing modules.
  • the swivel system 53 or the linear system 54 can be arranged permanently in the straight printing position.
  • the swivel system 53 or the linear system 54 could be arranged permanently in the perfecting position.
  • the web 6 would in any case only be printed on one side.
  • the web can also be guided directly from the first guide element 40a to the second guide element 40b in straight printing operation, that is to say not via the turning device 41 and the web store 43.
  • the exemplary embodiments shown can also be provided not to move the guide elements 40a and 40b, but rather the printing modules 11, 12 and 13 (pivot or move linearly).
  • the guide elements 40a and 40b are preferably moved. These are usually lighter and not, like the print modules, connected to ink supplies.

Landscapes

  • Ink Jet (AREA)
  • Registering, Tensioning, Guiding Webs, And Rollers Therefor (AREA)

Claims (8)

  1. Dispositif (1) pour l'impression d'une bande (6) de support d'impression sur une première et/ou une deuxième face (6a, 6b),
    caractérisé par
    un dispositif d'impression (10) avec au moins deux modules d'impression (11, 12, 13), les modules d'impression étant des têtes d'impression à jet d'encre et le fluide d'impression de l'encre, le transfert s'effectuant avec une zone active (20) assignée au dispositif d'impression, dans laquelle le fluide d'impression (30) est transféré sur la bande au moyen des modules d'impression,
    un premier élément de guidage (40a) pour le guidage de la bande le long d'au moins une première partie (20a) de la zone active,
    un dispositif de retournement (41) pour la bande installé en aval du premier élément de guidage dans le sens de déplacement de la bande (7) et
    un deuxième élément de guidage (40b) différent du premier élément de guidage (40a) installé en aval du dispositif de retournement dans le sens de déplacement de la bande pour le guidage de la bande le long d'au moins une seconde partie (20b) de la zone active, au moins un module d'impression étant agencé de façon mobile par rapport à au moins l'un des deux éléments de guidage pour l'exécution d'un déplacement relatif (50) et/ou au moins l'un des deux éléments de guidage étant agencé de façon mobile par rapport à au moins l'un des modules d'impression.
  2. Dispositif selon la revendication 1, caractérisé en ce que le déplacement relatif est un pivotement.
  3. Dispositif selon la revendication 2, caractérisé en ce que les deux éléments de guidage sont agencés de façon pivotante autour d'un axe de pivotement (52) commun.
  4. Dispositif selon la revendication 3, caractérisé en ce que l'axe de pivotement est situé du côté des éléments de guidage opposé aux modules d'impression.
  5. Dispositif selon la revendication 1, caractérisé en ce que le déplacement relatif est un déplacement linéaire et a essentiellement lieu parallèlement au sens de déplacement de la bande se trouvant dans la zone active.
  6. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce
    qu'il existe au moins un entraînement (51) générant le déplacement relatif.
  7. Dispositif selon l'une des revendications précédentes,
    caractérisé en ce
    que la zone active du dispositif d'impression se compose des zones actives (21, 22, 23) des modules d'impression.
  8. Dispositif selon la revendication 7,
    caractérisé en ce
    que le déplacement relatif est un déplacement le long d'au moins les zones actives de deux modules d'impression.
EP17167458.3A 2016-05-30 2017-04-21 Dispositif d'impression d'une bande de support Active EP3251859B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102016209280.4A DE102016209280A1 (de) 2016-05-30 2016-05-30 Vorrichtung zum Bedrucken einer Bahn aus Bedruckstoff

Publications (2)

Publication Number Publication Date
EP3251859A1 EP3251859A1 (fr) 2017-12-06
EP3251859B1 true EP3251859B1 (fr) 2020-09-02

Family

ID=58606097

Family Applications (1)

Application Number Title Priority Date Filing Date
EP17167458.3A Active EP3251859B1 (fr) 2016-05-30 2017-04-21 Dispositif d'impression d'une bande de support

Country Status (3)

Country Link
EP (1) EP3251859B1 (fr)
CN (1) CN107443928B (fr)
DE (1) DE102016209280A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108819495B (zh) * 2018-04-02 2020-09-11 付灵 一种玻璃加工过程产品管理方法、系统及使用方法
CN111976310B (zh) * 2020-08-28 2021-07-13 重庆久丰印务有限公司 一种全自动快速高效旋转曲面数码喷墨印刷机
DE102021132015B3 (de) 2021-12-06 2023-03-30 Canon Production Printing Holding B.V. Vorrichtung zum Bedrucken eines Aufzeichnungsträgers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659569A1 (fr) * 1993-12-21 1995-06-28 Nipson S.A. Imprimante à haute cadence d'impression et utilisations d'une telle imprimante

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DE59001716D1 (de) * 1989-03-08 1993-07-15 Siemens Nixdorf Inf Syst Druckvorrichtung mit wenigstens zwei, raeumlich voneinander getrennten druckstationen.
US5878320A (en) 1997-09-30 1999-03-02 Xerox Corporation Continuous imaging of a continuous web substrate with a single print engine with a photoreceptor belt seam
US6296405B1 (en) * 2000-01-04 2001-10-02 International Business Machines Corporation Duplex check printer using a print mechanism pivoted between document paths
JP4687031B2 (ja) * 2004-08-04 2011-05-25 富士ゼロックス株式会社 記録装置
JP2011143628A (ja) * 2010-01-15 2011-07-28 Seiko Epson Corp 記録紙の印刷方法および両面印刷装置
JP2011168383A (ja) 2010-02-22 2011-09-01 Seiko Epson Corp ターゲット搬送装置、流体噴射装置
JP5751151B2 (ja) * 2011-12-02 2015-07-22 ブラザー工業株式会社 画像記録装置
US8885003B2 (en) * 2012-06-26 2014-11-11 Kodak Alaris Inc. Duplex thermal printing system with pivotable diverter
US8777399B2 (en) * 2012-09-26 2014-07-15 Xerox Corporation System and method for first and second side process registration in a single print zone duplex web printer
DE102014010904B3 (de) 2014-07-24 2015-01-15 Heidelberger Druckmaschinen Ag Vorrichtung zum beidseitigen Bedrucken
US9145007B1 (en) * 2014-11-14 2015-09-29 Eastman Kodak Company Duplex printer with print belts for sheet and web printing
DE102015205105B4 (de) * 2015-03-20 2019-09-12 Koenig & Bauer Ag Rollen-Druckmaschine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0659569A1 (fr) * 1993-12-21 1995-06-28 Nipson S.A. Imprimante à haute cadence d'impression et utilisations d'une telle imprimante

Also Published As

Publication number Publication date
CN107443928B (zh) 2020-08-18
EP3251859A1 (fr) 2017-12-06
DE102016209280A1 (de) 2017-11-30
CN107443928A (zh) 2017-12-08

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