WO2004062915A1 - Druckmaschine und verfahren zum bedrucken einer druckbahn - Google Patents
Druckmaschine und verfahren zum bedrucken einer druckbahn Download PDFInfo
- Publication number
- WO2004062915A1 WO2004062915A1 PCT/DE2003/004258 DE0304258W WO2004062915A1 WO 2004062915 A1 WO2004062915 A1 WO 2004062915A1 DE 0304258 W DE0304258 W DE 0304258W WO 2004062915 A1 WO2004062915 A1 WO 2004062915A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printing
- web
- support
- units
- belt
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F13/00—Common details of rotary presses or machines
- B41F13/02—Conveying or guiding webs through presses or machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F5/00—Rotary letterpress machines
- B41F5/24—Rotary letterpress machines for flexographic printing
Definitions
- the invention relates to a method for printing on a printing web by means of a plurality of printing units.
- the invention further relates to a printing press with a plurality of printing units, each of which has a circumferential printing block carrying printing clichés and guided around a plate cylinder and an ink application device, and to a printing web guide with rollers with pressure devices for pressing the printing web onto the printing tape.
- Printing on printing webs is carried out regularly in that the paper web is fed into various printing units in the form of a loop, a deflection of, for example, 180 ° taking place regularly during the transition from one printing unit to the other.
- Flexo printing machines such as are known, for example, from DE 44 10 132 C2, have proven themselves for printing short runs, as are often required for printed packaging.
- the printing cliché detects itself as a flexible material on a circumferential printing belt, which is passed over a printing cylinder, where, in cooperation with an impression cylinder, the printing web passing between the two cylinders is printed.
- the known printing methods are proven and can be used without problems with printing webs which have sufficient tensile stability to absorb the tensile forces exerted on the printing web running freely between deflection cylinders when the printing web passes through cylinder gaps.
- the printing cylinders only allow repeat lengths of up to 2.5 m, while significantly longer repeat lengths can be achieved with printing tapes.
- the invention is based on the problem of making it possible to print a printing web even with less intrinsic stability by means of a plurality of printing units with a printing press of simple construction and which can be changed flexibly.
- a method of the type mentioned at the outset is characterized in that the printing web is guided in the area of the printing units on a support belt which is transported at the same speed and that the multiple printing is carried out by printing units arranged next to one another in the transport direction of the support belt.
- the method according to the invention allows the use of, in particular, ribbon printing units, which have considerable advantages because of their flexible usability.
- Printing on printing webs with a low intrinsic stability and / or greater elasticity is achieved in that the printing web is transported in the area of the printing units together with a support belt to which the printing web has no relative speed, so that the printing web is flat over the transport path through the printing units at all times is supported.
- the guidance of the printing path is ideally straight.
- An essentially straight-line guidance in the sense of this application still exists if there are smaller deflections below 45 °, preferably below 20 °. Minor redirections within the limits mentioned are harmless to the present invention.
- the printing in the transport direction is preferably carried out at equal distances, that is to say equidistantly.
- the present invention is preferably used for roll-to-roll printing. However, it is also possible to divide the printing web into suitable web sections immediately after printing.
- the method according to the invention allows an advantageous arrangement of the printing units parallel to one another, preferably in parallel stands of a printing press.
- the printing units are easily accessible for maintenance work or for a pressure change. Any readjustments to the flexographic printing unit can be carried out in a simple manner without difficulty. If the printing path runs in a straight line, preferably above the plate cylinder, access to the printing units is not complete
- a printing press of the type mentioned at the outset is therefore further characterized in that the printing web guide through the printing units is formed by a support belt moving at the speed of the printing web and that the printing units are formed on machine stands aligned along the support belt, wherein the support band preferably runs essentially in a straight line.
- the printing units are preferably mounted on machine stands arranged in parallel, the plate cylinders of the printing units are arranged at the same height in the printing state, and an essentially horizontal course of the support belt is provided above the plate cylinders.
- the support belt can run over support rollers, the support rollers for supporting the printing web being preferably arranged close together.
- Other support devices can also be used, such as sliding plates.
- an impression cylinder is located opposite each of the plate cylinders arranged, which is preferably tangentially aligned with the support rollers, so that a straight course of the support belt can be maintained even in the area of the impression cylinder.
- the printing path runs on the side of the support belt facing away from the impression cylinder.
- the printing units can be set up to accommodate printing tapes of different lengths, in particular they can be flexographic printing units.
- the support belt is expediently driven without slip and is preferably designed to form a positive connection with a drive element.
- Figure 1 - a schematic side view of a printing machine according to the invention for printing a web from roll to roll with four printing units
- Figure 2 an enlarged view of one of the printing units provided in Figure 1.
- a printing web 1 runs from a supply roll 2 into a printing zone 3 and is wound onto a take-up roll 4 in the printed state.
- the printing zone 3 there are four printing units 5 which are fastened to vertical stands 6 as band printing units.
- Each printing unit 5 thus has a printing belt 9 which rotates endlessly about a plate cylinder 7 and a tensioning roller 8 and on which flexible plates which form the printing plate are fastened.
- the plate cylinders 7 are all at the same height in the printing state, so that the printing web 1 runs horizontally across the respective horizontal tangent of the plate cylinders 7.
- the printing web 1 runs through the printing units 5 together with a support belt 10.
- the support belt 10 runs endlessly between two deflection rollers 1 1 with a horizontally running lower run 1 2.
- the printing web which is moved at the same web speed as the support belt 10, bears against the horizontally running lower run 12 from the side of the lower run 12 opposite the printing web 1, in the area of the plate cylinders 7, a counter-pressure cylinder 13 arranged in a fixed manner against each other the lower strand 1 2 and the Print path 1.
- the printing web 1 is printed.
- FIG. 1 it is made clear by a schematically drawn in operator 14 that the space between the printing units 5 can be walked on comfortably, so that the printing units 5 are easily and easily accessible for maintenance and setup purposes.
- the support belt 10 is supported in the region of its lower run 1 2 on the side opposite the print web 1 by support rollers 12 ′ lying close to one another in the transport direction and kept in contact with the print web 1.
- the contact with the printing web 1 is intensified in that the printing web 1 is guided before the entry into the printing zone 3 and after the exit from the printing zone 3 via deflection rollers 16, through which the printing web is slightly opposite to the horizontal course through the printing zone 3 on the path between the deflection roller 16 and the associated deflection roller 1 1 of the rotating printing belt 10 is deflected upward at an angle ⁇ 10 °.
- Figure 2 illustrates the structure of a
- a vertical double arrow indicates that the lower tensioning roller 8 can be moved in the vertical direction on the vertical stand 6 in order to tension the rotating printing belt 9.
- the printing process takes place in the gap between plate cylinder 7 and impression cylinder 13, through which the printing belt 9, but also the arrangement of printing web 1 and lower run 1 2 of the support belt 10, pass.
- ink is applied in the desired amount to the outside of the printing tape 9 or a cliché applied to it by an inking roller 17.
- the inking roller 1 7, designed as an anilox roller can be advanced with a linear guide 1 8 against the circumference of the plate cylinder 7 by means of a servo motor 1 9.
- the delivery of the Ink application roller 17 is carried out via a spindle (not shown) driven by a belt drive 20 and guided within a bellows 21.
- the inking roller 17 is driven in rotation via a (not shown) speed-controlled servo motor.
- the plate cylinder 7 can be pressed against the stationary counter-pressure roller 13 by means of a linear guide 22 and a servo motor 23 and via a spindle 24.
- the rotary movement of the plate cylinder 7 is effected by a speed-controlled servo motor 25.
- the printing unit shown in connection with the arrangement shown in FIG. 1 is particularly suitable for printing large print reports.
- the print repeat can be changed quickly and easily by replacing the printing tape 9 with a printing tape 9 of a different length. Due to the vertically adjustable tensioning roller 8, on the one hand an exchange is easily possible and on the other hand the required tension can be quickly adjusted again.
- the printing press according to the invention is therefore characterized by a high degree of flexibility in that the printing press can be converted to another printing report at short notice.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rotary Presses (AREA)
- Printing Methods (AREA)
- Coloring (AREA)
- Advancing Webs (AREA)
- Folding Of Thin Sheet-Like Materials, Special Discharging Devices, And Others (AREA)
- Screen Printers (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2003299273A AU2003299273A1 (en) | 2003-01-08 | 2003-12-30 | Printing machine and method for printing a print web |
DE50306875T DE50306875D1 (de) | 2003-01-08 | 2003-12-30 | Druckmaschine und verfahren zum bedrucken einer druckbahn |
EP03799442A EP1581391B1 (de) | 2003-01-08 | 2003-12-30 | Druckmaschine und verfahren zum bedrucken einer druckbahn |
US10/541,575 US20060150837A1 (en) | 2003-01-08 | 2003-12-30 | Printing machine and method for printing a print web |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10300502.1 | 2003-01-08 | ||
DE10300502A DE10300502A1 (de) | 2003-01-08 | 2003-01-08 | Druckmaschine und Verfahren zum Bedrucken einer Druckbahn |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004062915A1 true WO2004062915A1 (de) | 2004-07-29 |
Family
ID=32602470
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/004258 WO2004062915A1 (de) | 2003-01-08 | 2003-12-30 | Druckmaschine und verfahren zum bedrucken einer druckbahn |
Country Status (7)
Country | Link |
---|---|
US (1) | US20060150837A1 (de) |
EP (1) | EP1581391B1 (de) |
AT (1) | ATE357336T1 (de) |
AU (1) | AU2003299273A1 (de) |
DE (2) | DE10300502A1 (de) |
ES (1) | ES2281694T3 (de) |
WO (1) | WO2004062915A1 (de) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013075766A1 (de) * | 2011-11-22 | 2013-05-30 | Gallus Druckmaschinen Gmbh | Flexodruckwerk mit kniehebelsystem |
WO2015117805A1 (de) * | 2014-02-05 | 2015-08-13 | CONPRINTA GmbH & Co. KG | Druckwerk fuer eine flexodruckmaschine |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140196621A1 (en) * | 2011-04-29 | 2014-07-17 | Manroland Web Systems Gmbh | Rotary offset printing machine and method for printing on substrates |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2142148A (en) * | 1936-11-25 | 1939-01-03 | Printcote Co Inc | Rotary printing press |
US2649044A (en) * | 1947-08-11 | 1953-08-18 | Dungler Julien | Web feed means for rotary printing machines |
GB1057456A (en) * | 1964-08-27 | 1967-02-01 | Colodense Ltd | Multi-colour printing of flexible materials |
NL8302812A (nl) * | 1983-08-10 | 1985-03-01 | Anderson & Vreeland Bv | Flexo-drukmachine. |
GB2188003A (en) * | 1984-11-23 | 1987-09-23 | Honsel Karl Heinz | Feeding webs through flexoprinting machine |
DE4410132C2 (de) | 1994-03-24 | 1996-07-25 | Thimm Verpackung Gmbh & Co | Flexodruckmaschine, insbesondere für Mehrfarbendruck |
US20020113855A1 (en) * | 2001-02-20 | 2002-08-22 | Baum Theodore M. | Printing machine with dual ink applicators |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2139164A (en) * | 1931-11-16 | 1938-12-06 | Theodore E Knowlton | Method and apparatus for preventing slipping in printing |
US2408143A (en) * | 1944-01-15 | 1946-09-24 | William C Huebner | Apparatus for multicolor printing with electro lines of force |
US2533985A (en) * | 1947-09-12 | 1950-12-12 | Aronstein Joseph | Process for multicolor printing on flocked area of fabric |
DE1864031U (de) * | 1961-11-18 | 1962-12-20 | Dornbusch & Co | Mehrfarbendruckvorrichtung fuer folien aus thermoplastischem kunststoff und aehnliche duenne flaechenartige waren. |
US3934505A (en) * | 1973-12-10 | 1976-01-27 | Bernard Screen Printing Corporation | Method and apparatus for synchronous printing of a moving web |
ES2027339T3 (es) * | 1987-05-07 | 1992-06-01 | Conprinta Ltd. | Maquina para impresion flexografica, particularmente para la impresion flexografica del fondo. |
DE3867993D1 (de) * | 1987-10-09 | 1992-03-05 | Stork Brabant Bv | Mehrfarbenrotationssiebdruckmaschine. |
US5729817A (en) * | 1996-10-17 | 1998-03-17 | Accent Color Sciences, Inc. | Accent printer for continuous web material |
-
2003
- 2003-01-08 DE DE10300502A patent/DE10300502A1/de not_active Ceased
- 2003-12-30 WO PCT/DE2003/004258 patent/WO2004062915A1/de active IP Right Grant
- 2003-12-30 DE DE50306875T patent/DE50306875D1/de not_active Expired - Lifetime
- 2003-12-30 AT AT03799442T patent/ATE357336T1/de active
- 2003-12-30 AU AU2003299273A patent/AU2003299273A1/en not_active Abandoned
- 2003-12-30 US US10/541,575 patent/US20060150837A1/en not_active Abandoned
- 2003-12-30 EP EP03799442A patent/EP1581391B1/de not_active Expired - Lifetime
- 2003-12-30 ES ES03799442T patent/ES2281694T3/es not_active Expired - Lifetime
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2142148A (en) * | 1936-11-25 | 1939-01-03 | Printcote Co Inc | Rotary printing press |
US2649044A (en) * | 1947-08-11 | 1953-08-18 | Dungler Julien | Web feed means for rotary printing machines |
GB1057456A (en) * | 1964-08-27 | 1967-02-01 | Colodense Ltd | Multi-colour printing of flexible materials |
NL8302812A (nl) * | 1983-08-10 | 1985-03-01 | Anderson & Vreeland Bv | Flexo-drukmachine. |
GB2188003A (en) * | 1984-11-23 | 1987-09-23 | Honsel Karl Heinz | Feeding webs through flexoprinting machine |
DE4410132C2 (de) | 1994-03-24 | 1996-07-25 | Thimm Verpackung Gmbh & Co | Flexodruckmaschine, insbesondere für Mehrfarbendruck |
US20020113855A1 (en) * | 2001-02-20 | 2002-08-22 | Baum Theodore M. | Printing machine with dual ink applicators |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013075766A1 (de) * | 2011-11-22 | 2013-05-30 | Gallus Druckmaschinen Gmbh | Flexodruckwerk mit kniehebelsystem |
US9272504B2 (en) | 2011-11-22 | 2016-03-01 | Gallus Druckmaschinen Gmbh | Flexographic printing unit with knee lever system and narrow web label printing press having at least one flexographic printing unit |
WO2015117805A1 (de) * | 2014-02-05 | 2015-08-13 | CONPRINTA GmbH & Co. KG | Druckwerk fuer eine flexodruckmaschine |
Also Published As
Publication number | Publication date |
---|---|
DE50306875D1 (de) | 2007-05-03 |
DE10300502A1 (de) | 2004-07-29 |
ES2281694T3 (es) | 2007-10-01 |
US20060150837A1 (en) | 2006-07-13 |
EP1581391B1 (de) | 2007-03-21 |
EP1581391A1 (de) | 2005-10-05 |
AU2003299273A1 (en) | 2004-08-10 |
ATE357336T1 (de) | 2007-04-15 |
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