EP1827850A1 - Imprimante - Google Patents

Imprimante

Info

Publication number
EP1827850A1
EP1827850A1 EP05803116A EP05803116A EP1827850A1 EP 1827850 A1 EP1827850 A1 EP 1827850A1 EP 05803116 A EP05803116 A EP 05803116A EP 05803116 A EP05803116 A EP 05803116A EP 1827850 A1 EP1827850 A1 EP 1827850A1
Authority
EP
European Patent Office
Prior art keywords
printing
printer according
printer
print head
receiving frame
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Withdrawn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
EP05803116A
Other languages
German (de)
English (en)
Inventor
Stefan Wagler
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.)
Zuend Systemtechnik AG
Original Assignee
Zuend Systemtechnik 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 Zuend Systemtechnik AG filed Critical Zuend Systemtechnik AG
Publication of EP1827850A1 publication Critical patent/EP1827850A1/fr
Withdrawn legal-status Critical Current

Links

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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/10—Sheet holders, retainers, movable guides, or stationary guides
    • 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
    • B41J13/00—Devices or arrangements of selective printing mechanisms, e.g. ink-jet printers or thermal printers, specially adapted for supporting or handling copy material in short lengths, e.g. sheets
    • B41J13/08—Conveyor bands or like feeding devices

Definitions

  • the invention relates to a printer for printing sheets, plates and endless roll materials according to the preamble of patent claim 1.
  • Printers of this type are known. They are used for printing large-area plates made of metal, plastic or wood, sheets or endless roll materials, such as paper, textiles, foils, etc.
  • the known printers comprise a housing having a printing table or a printing surface, via which a print head unit is drivably mounted along a rectilinear path and, moreover, can be lowered onto the workpiece to be printed or moved away from it.
  • a printer of this type usually includes which promote the printing material by friction, one or two transport rollers'.
  • endless roll material can be printed.
  • the printing direction or conveying direction of the endless roll material is always the same.
  • endless roll material also plates, which on the or the transport rollers lie, be printed.
  • Overprinting, for example, a white pre-print with ink, is not possible with the necessary accuracy, since neither the endless roll material, nor lying on the transport rollers plates with sufficient accuracy forward and backward can be passed under the print head unit.
  • Positionally movable printing systems are also known.
  • the print head unit together with its guide over the workpiece, which is held on the printing table, movable or the entire printing table is designed to be movable under the print head unit.
  • the latter devices are usually built as single-purpose machines and can not be switched to printing on endless roll material.
  • the masses of the printing table or printhead unit along with their leadership are relatively large, so that only low speeds are possible.
  • An object of the present invention is to provide a printer in such a way that on this workpieces are printed absolutely positionally stable, in particular small-sized objects and overprints can be reproduced produced.
  • the printing of endlessly supplied, band-shaped material such as films, etc.
  • a receiving frame connected via a positive connection with a feed drive and serving as a plate printing aid makes it possible to guide the printed matter absolutely precisely and to produce reproducible overprints on a printer constructed conventionally for the printing of endlessly fed material.
  • the receiving frame can be moved not only in a conveying direction exactly, but in both directions, so that overprints are possible.
  • the necessary for the drive of the receiving frame drive means interfere with the conventional printing of endless webs or lying on a transport roller, only frictionally engaged in a transport direction plate-shaped workpieces.
  • Conventional printers can be rebuilt or retrofitted with minimum technical and financial outlay by adding traction means incoming to the retainer frame to the end faces of the transport roller or elsewhere and used as a printer for reproducible printing or printing on small size print media.
  • an upstream white print or downstream white print or a post-treatment of the surface to be printed can take place, for example, with a varnish.
  • UV dryers arranged on the front side of the print heads, prints can be produced economically and with low energy consumption, since the UV dryers only have to cover the width of a print head.
  • the printing of small plates, which can not be held by the transport rollers, can be printed individually or simultaneously.
  • the removal and loading of items to be printed from the printer can always be done from the same side of the machine (front or back).
  • Figure 1 shows a schematic cross section through a
  • Figure 2 shows a schematic cross section through the
  • Figure 3 shows a schematic cross section through the Printer with a plate printing aid for the precise printing of plate-shaped materials, after the registration of the plate printing aid as well as the printing medium,
  • Figure 4 shows a schematic cross section through the
  • Figure 5 shows a schematic cross section through the
  • Figure 7 shows a schematic cross section through the
  • Figure 10 is a perspective view of the printer.
  • reference symbol 1 represents the entirety of a printer 1. This includes - in addition to a number of other, for the understanding of the present invention not necessary and therefore unspecified described parts - a printhead unit 3, in which a plurality of printheads 25 are installed in series. On the front side of the print head unit 3, for example, two UV dryers 5 are grown, which cure the printing ink immediately after the printing process. In addition, a white printhead 26 can each be inserted between the UV dryers 5 and the color print heads 25.
  • the print head unit 3 is arranged movably on a rail 7 in the direction of the arrows P. The print head unit 3 can additionally be moved vertically in the direction of the arrows Y.
  • two horizontal drive and transport rollers 11 and 13 are arranged on a frame in the example shown.
  • the two driven by a drive not shown transport rollers 11,13 are arranged below the print head unit 3, that the nozzles of the print heads 25 to the area between the two parallel transport rollers 11,13 are directed.
  • a plate, preferably a vacuum plate 15 is inserted, on which the material to be printed rests flat.
  • the vacuum plate 15 comprises a bottom and laterally closed box, which is covered at the top by a perforated plate 17 and which sucks on the vacuum plate 15 to be printed Good 19 during printing sucks ( Figure 1).
  • the print material 19 consists of an endlessly fed belt, which is guided by a feed roller, not shown, over a number of carrier rollers 21 via the first transport roller 11. From the first transport roller 11, the print material 19 leads via the vacuum plate 15 under the print heads 25 arranged at the bottom against the printing material 19 directed nozzles to the second transport roller 13, on the also a low pressure roller 23rd can be arranged. From there, the now printed print material 19 is guided directly or indirectly via support rollers 21 to the take-up reel (not shown).
  • FIG. 2 shows the same printer 1, wherein now the print material 19 is not fed and transported as an endless belt, but rather from a rigid plate 27 which in turn is driven by at least one of the transport rollers 11,13 under the print head unit 3 is passed.
  • the endlessly supplied Druckgut 19 and the plate 27 can be transported by the transport rollers 11,13 only by friction and only in the direction of the arrow T reproducible. A reversal of the transport direction to overprint certain areas on the printing material 19 or on the plate 27 is therefore not possible because of the unavoidable slippage and the loss of precision.
  • Figures 3 to 9 show the same printer 1 with an inventive plate printing aid in the form of a receiving frame 28.
  • toothed pinion 29 are placed at a distance a, which are each with a rack 31 in combing engagement.
  • the rack 31 either forms two parallel spaced at a distance frame parts 33 of the receiving frame 28 or they are attached to the undersides of the frame parts 33 of the receiving frame 28. In the schematic illustrations, the racks 31 are integrated in the frame parts 33.
  • the receiving frame 28 serves as a carrier for a rigid or flaccid printing material 19, which can be positioned on a stop 35 on the receiving frame 28. It consists of a closed plate, a grid or the like. Instead of a stop 35 can for the Positioning or registration of the printed material 19 with respect to the receiving frame 28 also be used other means.
  • the registration of the receiving frame 28 with respect to the printheads 25 takes place on a feeler or sensor element 37, which can be lowered after registering the position of the receiving frame 28.
  • Hold-down roller which presses on the top of the frame members 33, but not shown in the figures, ensures the maintenance of the positive connection between the pinion gear 29 and the rack 31.
  • the second transport roller 13 assumes in this embodiment, only supporting function.
  • After lowering the stylus element 37 of the receiving frame 28, driven by the pinion 29 is guided together with the printing material 19 under the print heads 25.
  • the printing is done by moving the printhead unit 3 along the rail 7, i.
  • the still wet printing ink is dried by one of the UV driers 5.
  • the effective width of the UV dryer 5 corresponds to the narrow side of the successive, i.e. in series arranged print heads 25, which are respectively arranged in the direction of travel P before and after the UV dryers 5.
  • FIG. 6 shows the printing process shortly before completion. From the printheads 25 only a narrow area at the end of the printed material 19 is subjected to color. After completion of the printing process according to FIG. 7, the print head unit 3 is moved upwards, ie lifted further from the print material 19. Subsequently, the printing material 19 removed from the receiving frame 28, ie removed from the printer 1 and replaced by new printing material 19, which, as soon as it is positioned on the receiving frame 28, is guided under the print head 25 to the back of the printer 1. A readjustment of the plate printing aid 28 with respect to the pinion 29 is not necessary because the engagement of the pinion 29 in the rack 31 has not been canceled ( Figure 9). Instead of the positive connection between sprockets and racks can also occur another positive connection element.
  • a perforated tape or a Hole row may be attached, in which engage the knobs on a Noppenrad.
  • the racks could also be replaced by timing belts. It is also not mandatory to attach the pinion 29 on the shaft of the transport roller 11; they can also be arranged at another suitable location.
  • the inventive printer 1 can be operated for printing endlessly fed webs without transport rollers.

Landscapes

  • Ink Jet (AREA)

Abstract

L'invention concerne une imprimante (1) comprenant deux pignons (29) espacés l'un de l'autre, qui sont en prise avec deux crémaillères (31), lesquelles forment les bords d'une aide à la stéréotypie ou elles sont fixées sur la partie inférieure des bords de l'aide à la stéréotypie. L'aide à la stéréotypie peut être déplacée en avant et en arrière dans la même position à l'aide des pignons, de sorte qu'une surimpression pouvant être reproduite ainsi que l'impression des articles (19) d'impression de petites dimensions sont possibles au moyen d'une unité de tête d'impression (3) pouvant être déplacée dans une dimension.
EP05803116A 2004-11-23 2005-11-23 Imprimante Withdrawn EP1827850A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH19222004 2004-11-23
PCT/CH2005/000689 WO2006056088A1 (fr) 2004-11-23 2005-11-23 Imprimante

Publications (1)

Publication Number Publication Date
EP1827850A1 true EP1827850A1 (fr) 2007-09-05

Family

ID=35811631

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05803116A Withdrawn EP1827850A1 (fr) 2004-11-23 2005-11-23 Imprimante

Country Status (3)

Country Link
US (1) US20090139416A1 (fr)
EP (1) EP1827850A1 (fr)
WO (1) WO2006056088A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008039684A1 (de) 2008-08-26 2010-03-04 Schott Ag Thermokatalytische Beschichtung

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2883255A (en) * 1954-04-28 1959-04-21 Panellit Inc Automatic process logging system
US3922688A (en) * 1974-07-22 1975-11-25 Bailey Meter Co Strip-chart recorder
JP2966688B2 (ja) * 1993-04-10 1999-10-25 太陽誘電株式会社 光ディスク用表面印刷装置
JPH0752428A (ja) * 1993-08-21 1995-02-28 Sony Corp 印刷装置
US5927208A (en) * 1997-12-31 1999-07-27 Primera Technology, Inc. CD printer centering adjustment
US6755518B2 (en) * 2001-08-30 2004-06-29 L&P Property Management Company Method and apparatus for ink jet printing on rigid panels
US6585439B2 (en) * 2000-12-15 2003-07-01 Hewlett-Packard Development Company, L.P. Printer media alignment apparatus and method
US6634729B1 (en) * 2002-06-12 2003-10-21 J.M. Huber Corporation Apparatus for applying ink indicia to boards
US7134749B2 (en) * 2003-06-16 2006-11-14 Kornit Digital Ltd. Method for image printing on a dark textile piece

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO2006056088A1 *

Also Published As

Publication number Publication date
WO2006056088A1 (fr) 2006-06-01
US20090139416A1 (en) 2009-06-04

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