EP0723864B1 - Rotations-Siebdruckmaschine für den Bogendruck - Google Patents

Rotations-Siebdruckmaschine für den Bogendruck Download PDF

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Publication number
EP0723864B1
EP0723864B1 EP96810043A EP96810043A EP0723864B1 EP 0723864 B1 EP0723864 B1 EP 0723864B1 EP 96810043 A EP96810043 A EP 96810043A EP 96810043 A EP96810043 A EP 96810043A EP 0723864 B1 EP0723864 B1 EP 0723864B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
screen printing
printing
pit
doctor
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.)
Expired - Lifetime
Application number
EP96810043A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0723864A1 (de
Inventor
Johannes Georg Schaede
Hans Wyssmann
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.)
KBA Notasys SA
Original Assignee
De la Rue Giori SA
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 De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0723864A1 publication Critical patent/EP0723864A1/de
Application granted granted Critical
Publication of EP0723864B1 publication Critical patent/EP0723864B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F15/00—Screen printers
    • B41F15/08—Machines
    • B41F15/0804—Machines for printing sheets
    • B41F15/0809—Machines for printing sheets with cylindrical or belt-like screens

Definitions

  • the invention relates to a rotary screen printing machine for sheetfed printing according to the generic term of claim 1.
  • Rotary screen printing machines work with one cylindrical, resilient screen printing stencil, the on the circumference of a forme cylinder is stretched and the inside is acted upon by a squeegee which is the one required for the printing process Bead builds up in front of the printing nip.
  • a squeegee which is the one required for the printing process Bead builds up in front of the printing nip.
  • the problem arises that when passing the screen printing template in a cylinder pit of the printing cylinder no support through this pressure cylinder learns which one for printing necessary squeegee pressure can absorb, so that Screen printing stencil pressed into the cylinder pit and can be damaged.
  • measures are provided such that the Passing the squeegee pressure in a cylinder pit Screen printing stencil not damaged and that at the same time the bead of color, which is necessary for printing is preserved.
  • a rotary screen printing machine in the preamble of claim 1 is described by the DE-A-39 03 721 known.
  • the pressure cylinder has no grippers; the bow will with the aid of conveyor roller pairs arranged near the pressure nip fed to the pressure nip.
  • the forme cylinder has a peripheral portion made of a mesh material and a screen printing stencil arranged above it, which with a along a generatrix of the Forme cylinder extending rail is attached.
  • the Impression cylinder has a cylinder pit adapted to this rail, so that this rail when passing the pressure gap can dip into this cylinder pit.
  • in the Inside the forme cylinder is one in the radial direction periodically adjustable doctor roll provided the inside of the mesh material and thus the screen printing template is present.
  • the distance between the Axes of the forme cylinder and the impression cylinder is like this chosen that it is slightly larger than the sum of the Radius of the impression cylinder and the radius of the Forme cylinder in the event that its screen printing template one concentric to the cylinder axis Takes position. Therefore, the impression cylinder and the Forme cylinder as long as the screen printing stencil is yours maintains a concentric position to the cylinder axis, one certain distance from each other that is a multiple of Bottom thickness is.
  • Doctor blade roll a radially outward pressure on the screen printing stencil so that this eccentrically curved outwards and thereby the Pressure gap is closed.
  • the screen printing stencil of the Forme cylinders must therefore periodically go out periodically deformed, which affects their lifespan and the achievable printing speed is obvious limited.
  • the object of the present invention is to achieve this to create a rotary screen printing machine in which the sheets in the usual way by grippers of the impression cylinder are transported and held and where the screen printing stencil as it passes a cylinder pit of the impression cylinder, while maintaining their cylindrical shape, from the pressure of the inner squeegee is relieved.
  • the screen printing machine according to the invention in sheet printing achieve normal printing speeds and any Eliminate the risk of damage to the screen printing stencil. Because to lift the squeegee from the screen printing stencil only a very small adjustment path is required is to relieve them of squeegee pressure, the bead of color necessary for printing remains before Pressure gap practically preserved. This guarantees that when lowering the squeegee onto the screen printing stencil after passing a cylinder pit the pressure after a very short run-up distance can. In addition, the adjustment mechanism stands out for the squeegee by constructive simplicity.
  • an adjustable partial cover of a cylinder pit of the impression cylinder and the ones inside Provide grippers This cover takes off before printing begins their cover position so that the squeegee of the Forme cylinders shortly before the point in time the gripper edge passes the pressure gap, lowered can be because the squeegee and the screen printing stencil experience support from this cover.
  • A is such a special design of the impression cylinder specified in dependent claim 7.
  • the rotary screen printing machine a forme cylinder 1 and an impression cylinder 2, which with the forme cylinder Printing gap forms the sheet B for printing pass through the forme cylinder 1.
  • the directions of rotation the cylinder is indicated by arrows.
  • the coat of the forme cylinder 1 consists only of one cylindrical, concentric to the cylinder axis Screen printing stencil 3, which is resilient and flexible on both sides of the forme cylinder 1 on ring flanges is attached.
  • these cylinder pits 4 are in Mounted adjustable on gripper shafts 20 in the usual way Bow gripper 5 housed, which with their Gripper edge the leading edge of a sheet B during its transport on the printing cylinder 2 and during the printing process ( Figure 1) by pressing against the Hold the gripper pad 21.
  • the grippers 5 are mounted that in its closed position it is printing Do not protrude the surface of the impression cylinder 2.
  • a doctor blade 6 is installed, which on the one hand the color inside the forme cylinder 1 directly before the printing nip to a colored bead F accumulates and on the other hand serves the screen printing stencil 3 against the inside during printing to press the pressure cylinder 2, that is against the lying on a printing zone of the printing cylinder 2 Sheet B ( Figure 1).
  • the squeegee 6 by a Control mechanism controlled, which in the considered Example a lever 7 in the form of an angle lever, a Control cam rotating in rotation with the forme cylinder 1 8 in the form of a cam disk and an actuating cylinder 9 having.
  • the lever 7 is in the middle, that is its angular corner, pivotable about a fixed axis 10 stored.
  • On the inside of the forme cylinder 1 the end of the lever 7, the squeegee 6 is attached, while the other end of the lever has a cam roller 11 carries, which cooperates with the control cam 8.
  • Lever 7 attacks the actuating cylinder 9 by one Fixed axis 12 is pivotally mounted and the Lever 7 with an adjustable force about the axis 10 counterclockwise according to Figure 1 to seeks to pivot, so that the squeegee 6 in the direction pressed onto the inside of the screen printing stencil 3 becomes.
  • the control cam 8 has a radially outward enlarged area 8a, the circumferential length of which Dimension of a cylinder pit 4 is adjusted.
  • This Area 8a of the control curve contains such a register arranged with the cylinder pits 4 and its radius is dimensioned such that whenever a cylinder pit 4 of the impression cylinder 2 the forme cylinder 1 happens, the doctor blade 6 by rolling the cam roller 11th on this area 8a pivoted inward and so from the screen printing stencil 3 is lifted off and separated ( Figure 2). The screen printing stencil 3 can on this Way not pressed into a cylinder pit 4 and to be damaged.
  • the radius of the remaining large circumferential section the control curve 8, outside the area 8a, is so small that the squeegee 6 under the effect of on the lever 7 pushing actuating cylinder 9 with predetermined force the screen printing stencil against one lying on a printing zone of the printing cylinder 2 Bow B presses ( Figure 1).
  • the doctor blade 6 is only subject to the force of the actuating cylinder 9, and the lever 7 with its cam roller 11 does not touch the control curve 8.
  • the adjustment of the Squeegee 6 in the separated from the screen printing stencil Position by the control curve 8 takes place against the effect of the actuating cylinder with constant force 9.
  • the measure described allows printing speeds which the in the sheet processing correspond to usual speeds. So that's it also possible the screen printing process with others Directly chain printing processes, so that personnel savings are possible without loss of production. So can in particular a screen printing machine according to the invention with another printing press, for example a downstream numbering machine or one downstream offset printing machine, combined in this way that are leaving the screen printing machine Arch through, without any interruptions appropriate transport system, especially a Chain gripper system, directly from the following printing machine are fed, which with the usual printing speed can be operated.
  • the lever 7 with provided a stop 16, behind which the pawl of Jack lever 14 in the last-mentioned position takes hold. In this blocking position, with the Squeegee 6, the lever 7 is always brought in when an interruption or at the end of printing of the Printing cylinder 2 is lifted from the forme cylinder 1.
  • a pivotable lever arm 22 is provided, the inner end around one near the pit floor below the gripper shaft 20 in the pressure cylinder 2 installed shaft 23 is pivotable and the other End is provided with a flat cover 24.
  • On the side facing the gripper shaft 20 has the Lever arm 22 adapted to this gripper shaft 20 Recess 25.
  • the gripper mechanism, the gripper pad 21 and in their closed position there with their gripper edge 5a resting gripper 5 are under the envelope of the printing cylinder surface lowered.
  • the arrangement is such that the Lever arm 22 between one completely inside the cylinder pit 4 lowered position ( Figure 4) and is pivotable in a position in which the cover 24 from the closed grippers 5 covers occupied area of the pit 4, in such a way that that the cylindrical peripheral surface of the one behind it Printing zone of the printing cylinder 2, on which an arch rests through the top of the cover 24 to about the middle of the cylinder pit 4 is extended ( Figure 3). So this cover 24 is executed so that they have space for the grippers 5 of the Printing cylinder 2 offers, this completely covers and with the subsequent printing segment of the printing cylinder 2 forms a closed surface.
  • the cylinder pit 4 becomes partially covered so that the squeegee 6 in the forme cylinder 1 can be lowered in front of the gripper edge 5a can and still receives support so that on the one hand, correct pressure is guaranteed and on the other hand, the screen printing stencil from being damaged is protected.
  • the cover 24 is so designed to fit seamlessly into the gripper edge Adjacent printing segment of the printing cylinder 2 passes over and the grippers 5 and the cylinder pit 4 with a Start-up curve via a screen printing process sufficiently long run-up distance to the pressure cylinder diameter can cover.
  • the control mechanism for the lever arm 22 with its cover 24 consists, for example, of a usual fixed cam disc or cam 28 and one that is under tension and unwinding Cam roller 26 at the end of one on the lever arm 22 attached arms 27 is mounted.
  • the control curve 28, which is only schematic in FIGS. 3 and 4 is indicated, is similar to the usual for Opening and closing of the gripper 5 serving control curve trained and designed so that during the Pressing the lever arm 22 with the cover 24 occupies the closed position shown in Figure 3.
  • Figures 5 and 6 is a schematic another embodiment of a screen printing machine of the invention, in which the cylinder pits, as described with reference to FIGS. 3 and 4, partially covered when passing the pressure gap and thereby the grippers in their closed position completely are covered.
  • the impression cylinder has 2 three, separated by three cylinder pits 4, 4 'and 4' ' Printing segments.
  • the adjusting mechanism for is of this type the squeegee 6 arranged differently, but consists in essentially from the figures 1 and 2 described parts, namely from the lever 7, which the squeegee 6 carries about the fixed axis 10 pivotable and is also provided with the cam roller 11 which rolls on the control curve 8 ', further from the 12th articulated actuator cylinder 9 through which Doctor blade 6 is subjected to a predetermined force, and from the only schematically indicated further adjusting mechanism 13 ', like parts 13, 14 and 15 after Figures 1 and 2, a blockage of the doctor blade 6 in allowed their off-hook position.
  • the control curve 8 ' has in the areas of the three cylinder pits 4, 4 ', 4' ' each have a radially projecting zone 8a 'through which the Cam roller 11 adjusted with the lever 7 and so the Squeegee 6 every time the open area of a cylinder pit passes the pressure gap, briefly from the Screen printing stencil 3 is lifted as shown in the Figures 1 and 2 described.
  • FIGs 5 and 6 are schematically a Sheets on the transfer cylinder 2 transfer cylinder 30 and the printed sheets from the impression cylinder 2 decreasing transfer cylinder 31 shown.
  • the arrangement is such that the cover 24, which when they pass the pressure gap their closed position takes, then, before reaching the Transfer cylinder 31, adjusted to its lowered position and will keep it until the other Transfer cylinder 30 has been passed. Subsequently, before reaching the pressure gap, the cover is then removed 24 closed again.
  • the control curve 28 a radially outwardly projecting zone 28a which cover the areas of the two transfer cylinders 30 and 31 includes and which ensures that, so long a cam roller 26 rolls on this zone 28a, the cover 24 in question is its lowered, open Takes position. Therefore, the grippers of the transfer cylinder 30 and 31 for handing over a sheet to the open gripper 5 of the pressure cylinder 2 or for takeover a sheet from the impression cylinder 2 in the relevant Intervene in cylinder pits.
  • the invention is not based on those described Embodiments of the adjusting mechanism for the squeegee 6 and the actuating mechanism for the cover 24 of the Printing cylinder 2 limited, but leaves manifold constructive variants too.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Screen Printers (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
EP96810043A 1995-01-24 1996-01-23 Rotations-Siebdruckmaschine für den Bogendruck Expired - Lifetime EP0723864B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH19295 1995-01-24
CH192/95 1995-01-24

Publications (2)

Publication Number Publication Date
EP0723864A1 EP0723864A1 (de) 1996-07-31
EP0723864B1 true EP0723864B1 (de) 1998-08-19

Family

ID=4181354

Family Applications (1)

Application Number Title Priority Date Filing Date
EP96810043A Expired - Lifetime EP0723864B1 (de) 1995-01-24 1996-01-23 Rotations-Siebdruckmaschine für den Bogendruck

Country Status (10)

Country Link
US (1) US5671671A (ja)
EP (1) EP0723864B1 (ja)
JP (2) JP3708608B2 (ja)
CN (1) CN1063391C (ja)
AT (1) ATE169867T1 (ja)
AU (1) AU696709B2 (ja)
CA (1) CA2167765C (ja)
DE (1) DE59600440D1 (ja)
RU (1) RU2145548C1 (ja)
UA (1) UA41371C2 (ja)

Cited By (12)

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US5960716A (en) * 1996-02-19 1999-10-05 De La Rue Giori, S.A. Impression cylinder of a sheet-fed machine having grippers and a cover arranged in a cylinder pit
DE10025995C1 (de) * 2000-01-25 2001-08-16 Koenig & Bauer Ag Druckeinheit mit zwei Siebdruckzylindern
DE10025994C1 (de) * 2000-01-25 2001-08-16 Koenig & Bauer Ag Druckeinheit
DE10026000C2 (de) * 2000-01-25 2002-04-11 Koenig & Bauer Ag Siebdruckzylinder
US6412407B1 (en) 1997-10-14 2002-07-02 Gallus Ferd Ruesch Ag Screen printing installation
US6655270B2 (en) 2000-01-25 2003-12-02 Koenig & Bauer Aktiengesellschaft Printing unit having screen printing cylinders and transfer cylinders forming printing nip
US6681690B2 (en) 2000-01-25 2004-01-27 Koenig & Bauer Aktiengesellschaft Sheet-fed printing press with screen-printing cylinder
DE102009017686A1 (de) 2009-04-16 2010-10-28 Steinemann Technology Ag Siebdruckmaschine mit Greifertransport
DE102009030400A1 (de) * 2009-06-25 2011-01-05 Steinemann Technology Ag Bogenrotationsdruckmaschine mit Vollzylinder
DE102009037332A1 (de) 2009-08-14 2011-02-17 Zyrus Beteiligungsgesellschaft Mbh & Co. Patente I Kg Rotationssiebdruckvorrichtung und -verfahren
DE102014226869A1 (de) 2014-12-22 2016-06-23 Koenig & Bauer Ag Rakeleinrichtung für eine Siebdruckmaschine, Siebdruckmaschine sowie Verfahren zum Betrieb einer Rakeleinrichtung
DE102020101680A1 (de) 2020-01-24 2021-07-29 Koenig & Bauer Ag Verfahren zum Betrieb eines Siebdruckwerkes in einer Druckmaschine

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US6109172A (en) * 1996-03-21 2000-08-29 De La Rue Giori S.A. Silk-screen printing machine
DE19703312A1 (de) * 1997-01-30 1998-08-06 Rk Siebdrucktechnik Gmbh Verfahren zur Steuerung einer Siebdruckzylindermaschine
JP3792844B2 (ja) * 1997-06-24 2006-07-05 理想科学工業株式会社 インキ漏れ防止構造を有する孔版印刷機
DE19949099C2 (de) * 1999-10-12 2003-08-14 Sonko Konstruktions Und Sonder Rotationssiebdruckmaschine
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JP5180006B2 (ja) * 2008-08-22 2013-04-10 株式会社小森コーポレーション 輪転式孔版印刷機の同期制御方法及び装置
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ES2540864T3 (es) 2010-09-24 2015-07-14 Kba-Notasys Sa Sistema y método para orientar escamas o laminillas magnéticas contenidas en un vehículo de tinta o barniz aplicado sobre un sustrato en forma de lámina o en forma de banda
EP2637396A1 (en) 2012-03-07 2013-09-11 KBA-NotaSys SA Method of checking producibility of a composite security design of a security document on a line of production equipment and digital computer environment for implementing the same
US20140020583A1 (en) * 2012-07-17 2014-01-23 Avi Barazani Adaptable impression drum
JP6168692B2 (ja) * 2013-08-06 2017-07-26 株式会社小森コーポレーション ロータリースクリーン印刷装置
CA2919796A1 (en) 2013-08-14 2015-02-19 Kba-Notasys Sa Creation of a transparent polymer window with a field of lenses in a security paper substrate
JP6559686B2 (ja) 2014-01-16 2019-08-14 カーベーアー−ノタシ ソシエテ アノニム セキュリティ印刷に利用するためのセキュリティ基板への透明窓部の形成
JP6596701B2 (ja) 2014-08-22 2019-10-30 シクパ ホルディング ソシエテ アノニム 光学効果層を作製する装置及び方法
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EP3401114A1 (en) 2017-05-12 2018-11-14 KBA-NotaSys SA Security element or document and process of producing the same
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RU2746243C1 (ru) * 2020-08-11 2021-04-09 Анатолий Юрьевич Кутняков Способ печати на ткани Fotoprint
DE102021105634A1 (de) 2021-03-09 2022-09-15 Koenig & Bauer Ag Siebdruckeinheit und ein Verfahren zum Betreiben einer als Siebdruckeinheit ausgebildeten Bogendruckeinheit
DE102021105636A1 (de) 2021-03-09 2022-09-15 Koenig & Bauer Ag Siebdruckeinheit und eine als Siebdruckeinheit ausgebildete Bogendruckeinheit
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CN113103744B (zh) * 2021-03-17 2022-07-08 广州盛雅图玻璃工艺有限公司 一种转式丝网印刷机的丝网滚筒机构

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5960716A (en) * 1996-02-19 1999-10-05 De La Rue Giori, S.A. Impression cylinder of a sheet-fed machine having grippers and a cover arranged in a cylinder pit
US6412407B1 (en) 1997-10-14 2002-07-02 Gallus Ferd Ruesch Ag Screen printing installation
US6681690B2 (en) 2000-01-25 2004-01-27 Koenig & Bauer Aktiengesellschaft Sheet-fed printing press with screen-printing cylinder
DE10026000C2 (de) * 2000-01-25 2002-04-11 Koenig & Bauer Ag Siebdruckzylinder
DE10025994C1 (de) * 2000-01-25 2001-08-16 Koenig & Bauer Ag Druckeinheit
US6655270B2 (en) 2000-01-25 2003-12-02 Koenig & Bauer Aktiengesellschaft Printing unit having screen printing cylinders and transfer cylinders forming printing nip
DE10025995C1 (de) * 2000-01-25 2001-08-16 Koenig & Bauer Ag Druckeinheit mit zwei Siebdruckzylindern
EP1440802A2 (de) 2000-01-25 2004-07-28 Koenig & Bauer Aktiengesellschaft Siebdruckzylinder
DE102009017686A1 (de) 2009-04-16 2010-10-28 Steinemann Technology Ag Siebdruckmaschine mit Greifertransport
DE102009030400A1 (de) * 2009-06-25 2011-01-05 Steinemann Technology Ag Bogenrotationsdruckmaschine mit Vollzylinder
DE102009037332A1 (de) 2009-08-14 2011-02-17 Zyrus Beteiligungsgesellschaft Mbh & Co. Patente I Kg Rotationssiebdruckvorrichtung und -verfahren
WO2011018243A1 (de) 2009-08-14 2011-02-17 Zyrus Beteiligungsgesellschaft Mbh & Co. Patente I Kg Rotationssiebdruckvorrichtung und -verfahren
DE102014226869A1 (de) 2014-12-22 2016-06-23 Koenig & Bauer Ag Rakeleinrichtung für eine Siebdruckmaschine, Siebdruckmaschine sowie Verfahren zum Betrieb einer Rakeleinrichtung
DE102014226869B4 (de) 2014-12-22 2022-03-17 Koenig & Bauer Ag Rakeleinrichtung für eine Siebdruckmaschine und Siebdruckmaschine
DE102020101680A1 (de) 2020-01-24 2021-07-29 Koenig & Bauer Ag Verfahren zum Betrieb eines Siebdruckwerkes in einer Druckmaschine

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JPH08230149A (ja) 1996-09-10
CN1136497A (zh) 1996-11-27
CN1063391C (zh) 2001-03-21
RU2145548C1 (ru) 2000-02-20
UA41371C2 (uk) 2001-09-17
JP2005219509A (ja) 2005-08-18
US5671671A (en) 1997-09-30
AU696709B2 (en) 1998-09-17
CA2167765A1 (en) 1996-07-25
EP0723864A1 (de) 1996-07-31
JP3708608B2 (ja) 2005-10-19
AU4204196A (en) 1996-08-01
ATE169867T1 (de) 1998-09-15
CA2167765C (en) 2008-09-16
DE59600440D1 (de) 1998-09-24

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