EP1009635A1 - Method and device for driving a printing press with an integrated imaging device - Google Patents
Method and device for driving a printing press with an integrated imaging deviceInfo
- Publication number
- EP1009635A1 EP1009635A1 EP98936101A EP98936101A EP1009635A1 EP 1009635 A1 EP1009635 A1 EP 1009635A1 EP 98936101 A EP98936101 A EP 98936101A EP 98936101 A EP98936101 A EP 98936101A EP 1009635 A1 EP1009635 A1 EP 1009635A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- printing
- cylinder
- printing form
- drive
- form cylinder
- 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.)
- Granted
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
- B41F13/008—Mechanical features of drives, e.g. gears, clutches
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F7/00—Rotary lithographic machines
- B41F7/02—Rotary lithographic machines for offset printing
- B41F7/10—Rotary lithographic machines for offset printing using one impression cylinder co-operating with several transfer cylinders for printing on sheets or webs, e.g. satellite-printing units
Definitions
- the invention relates to a method and a device for driving a printing press with at least one integrated imaging device.
- a printing press with at least one printing cylinder, an offset cylinder, a printing form cylinder, an inking unit and an imaging device assigned to the printing form cylinder is known (DE 195 15 077 A1).
- the elements mentioned are interconnected by a gear train.
- the inking unit can be separated from the gear train.
- a disadvantage of this procedure is that the imaging takes a long time because the imaging speed, i.e. the speed at which the printing form cylinder rotates during imaging is identical to the maximum printing speed.
- the object of the invention is to provide a method and a device which / which allows a high imaging speed and thus the time for imaging is minimized.
- Fig. 1 printing press (schematic representation)
- Fig. 2 Drive wheel train arrangement
- Fig. 3 printing form cylinder
- Fig. 7 Drive scheme printing machine partial drive
- the printing cylinder 1 is preceded by a sheet feed device, consisting of a leading edge separator 4 and a pre-gripper system 6, for conveying a sheet to be printed from a stack of feed sheets 5 and transferring it to the printing cylinder 1.
- the sheets are fed to the printing cylinder 1 in such a way that only every second gripper row 3 of the printing cylinder is fed with a sheet.
- a sheet discharge designed as a delivery chain circle 7 is assigned to the printing cylinder 1, which takes over the printed sheet from the printing cylinder 1 and transports it to the delivery sheet stack 8.
- an arc is removed only from every second gripper row 3 of the printing cylinder 1.
- each cylinder group contains an offset cylinder 9 with two active surfaces which is operatively connected to the impression cylinder 1 and a printing form cylinder 10 with two active surfaces which is operatively connected to the offset cylinder 9.
- the cylinder - pressure cylinder 1; Offset cylinder 9 and printing form cylinder 10 are shown in the operating phase position, the effective surfaces with the start of printing 29 being opposed at the point of contact of the respective cylinder. In this operating phase position, the cylinders are connected to each other by the gear train.
- the pressure starts 29 of the cylinders - pressure cylinder 1 and offset cylinder 9 of the second cylinder group 18 - are shown in FIG. 1 as opposed to each other.
- An inking unit 19 is assigned to each active surface of each printing form cylinder 10.
- the inking unit 19 contains an application roller 20.
- the inking unit 19 is designed as an anilox inking unit.
- the anilox inking unit contains an ink metering roller 23, to which a doctor box 24 is assigned.
- the printing machine acc. Fig. 1 is with two cylinder groups 11; 18 equipped with two offset cylinders, each with two active surfaces, two printing form cylinders, each with two active surfaces and four inking units, and thus works as a four-color machine.
- the printing press is equipped with two offset cylinders, each with an effective area, two printing form cylinders, each with an effective area and 2 inking units, the printing press works as a two-color press. If the printing press is equipped with only one offset cylinder and one printing form cylinder, the printing press works as a one or two-color press.
- the drive wheel train contains a motor 12 with a motor pinion 13, an idler gear 14, a pressure cylinder drive wheel 15, two offset cylinder drive wheels 17, two printing form cylinder drive wheels 21, four application roller drive wheels 22 and four ink metering drive wheels 25.
- Each printing form cylinder is assigned its own drive 26.
- the assignment of the self-drive 26 and the arrangement of the printing form cylinder drive wheel 21 on the printing form cylinder 10 are shown in FIG. 3.
- the printing form cylinder drive wheel 21 is assigned to the printing form cylinder 10 via a phase position clutch 27.
- the printing form cylinder drive wheel 21 is arranged in the gear train of the printing press and meshes with the offset cylinder drive wheel 17 and the application roller drive wheel 22.
- the printing form cylinder 10 is assigned the self-drive 26 via a metal bellows coupling 28.
- the self-propulsion is designed as an electric motor.
- the method according to the invention is characterized in a printing press with a cylinder group 11 or 18 in that the drive connection (drive connection 4 - in the operating phase position) between the printing plate cylinder 10 and the printing plate cylinder drive wheel 21 is released by means of the phase position coupling 27 and thus the printing plate cylinder is quasi separated from the drive wheel train and the printing form cylinder 10 is driven by the self-drive 26 in the imaging phase.
- the speed of the printing form cylinder 10 during imaging i.e. the imaging speed is significantly higher than the maximum printing speed and is preferably 2-5 times the same.
- the printing form cylinder 10 is reintegrated into the drive wheel train in the operating phase position by means of the phase position coupling 27.
- Operating phase position means that the pressure starts 29 face the cylinders that are in operative connection and that printing operation is possible.
- a current for braking the printing press and for bracing the drive wheel train is applied to the self-drive 26 in printing operation.
- the existing self-propulsion is used to ensure tensioning of the drive wheel train in printing mode.
- the current supplied to the self-propulsion is preferably in the range of 10% of the current of the main drive motor 12.
- the drive connection between the printing forme cylinder drive wheel 21 and the drive wheel train is separated so that the printing forme cylinder can be separated from the drive wheel train and the printing form cylinder can be driven by the self-propelled in the imaging phase.
- the printing form cylinder 10 is reintegrated into the drive wheel train by rotating the eccentric bearing 30 in the operating phase position.
- Operating phase position means that the pressure beginnings of the cylinders in operative connection face each other and printing is possible.
- the printing form cylinders 10 are now driven by the self-drive 26 at an imaging speed.
- the printing form cylinders 10 are brought into an in-phase position relative to the imaging devices 16 from the respective operating phase positions.
- the in-phase position of the printing form cylinders 10 relative to the imaging devices 16 is preferably identical to the start of printing 29, ie that at the beginning of the Imaging process, both printing form cylinders 10 with their printing starts face the respective imaging device 16.
- the printing form cylinders 10 are driven synchronously at the imaging speed.
- the printing form cylinders 10 are brought back into their respective operating phase positions. This is done as described below:
- the operating phase of the respective printing form cylinder is overrun by the self-drive 26, i.e. the self-propulsion is stopped after passing the operating phase, then the printing form cylinder is integrated into the drive wheel train and mechanical means (phase coupling) take over the exact starting of the operating phase when the drive wheel train is started.
- the operating phase is started with the following process steps:
- the self-propulsion of the printing form cylinder is stopped before reaching the operating phase position, then the printing form cylinder is integrated into the drive wheel train and mechanical means (phase coupling) take over the exact starting of the operating phase position when the self-propulsion is started.
- At least one self-drive in the manner described is supplied with a current for braking the printing press and bracing the drive wheel train.
- the self-drive arranged on the printing form cylinder is also used in part or in total for driving the printing press in printing operation.
- This embodiment is shown in FIGS. 6 and 7 and is described below using the drive scheme of the printing press in the four-color version with two cylinder groups.
- each of the two printing form cylinders with the printing form cylinder drive wheels 21 is assigned its own drive 26.
- the drive wheel train of the printing press contains, in addition to the forme cylinder drive wheels 21, two offset cylinder drive wheels 17, one impression cylinder drive wheel 15, two applicator roller drive wheels 22, one pre-gripper system. star drive wheel 31, a leading edge separator drive wheel 32, a delivery intermediate wheel 33 and a delivery chain circuit drive wheel 34.
- the printing form cylinder drive wheels 21 are not actively incorporated into the drive wheel train and the self-propulsion drives 26 only drive the printing form cylinders; the printing press is not driven and is at a standstill.
- inactive incorporation of the printing forme cylinder drive wheels 21 is understood to mean either a separation of the respective printing forme cylinder drive wheel 21 from the printing form cylinder via a clutch or a release of the printing form cylinder drive wheel 21 firmly connected to the printing form cylinder from the drive wheel train by pivoting the eccentrically mounted printing form cylinder including printing form cylinder drive wheels 21 .
- the printing form cylinder drive wheels 2 are actively incorporated into the drive wheel train and at least one self-drive 26 drives the printing machine in whole or in part.
- the motor which is normally provided for driving the printing press is omitted and all of the components of the printing press are driven by at least one self-drive 26.
- the self-drives must be synchronized.
- the uniformly rotating assemblies are driven by at least one internal drive 26 via their drive wheels - printing cylinder drive wheel 15, offset cylinder drive wheels 17, printing cylinder drive wheels 21 and applicator roller drive wheels 22.
- the non-uniformly rotating assemblies - pre-gripper 6, front edge separator 4, delivery chain circuit 7 - are driven by the motor 12 by their drive wheels - pre-gripper system drive wheel 31, first intermediate wheel 35, second intermediate wheel 36, third intermediate wheel 37, delivery intermediate wheel 33, delivery chain drive wheel 34.
- This variant is advantageous because the drives that cause vibrations have their own drive wheel train.
- the motor 12 is synchronized with the self-propulsion or the self-propulsion. Another assignment of the modules to be driven to the motor and to the self-propulsion or the self-propulsion is also possible.
- the method according to the invention is characterized in a printing press with a cylinder group in that the drive connection (drive connection in the operating phase position) is separated between the printing form cylinder and the drive wheel train, so that the printing form cylinder is separated from the drive wheel train and the printing form cylinder is driven by the self-drive 26 in the development phase.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Rotary Presses (AREA)
Abstract
Description
Claims
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1997123147 DE19723147A1 (en) | 1997-06-03 | 1997-06-03 | Printer machine driving method |
DE19723147 | 1997-06-03 | ||
DE19748119A DE19748119B4 (en) | 1997-10-31 | 1997-10-31 | Method and device for driving a printing press |
DE19748119 | 1997-10-31 | ||
DE1998107127 DE19807127A1 (en) | 1997-06-03 | 1998-02-20 | Method and device for driving printing press with integrated imaging device for multicolour offset printing machines |
DE19807127 | 1998-02-20 | ||
PCT/DE1998/001528 WO1998055312A1 (en) | 1997-06-03 | 1998-06-02 | Method and device for driving a printing press with an integrated imaging device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1009635A1 true EP1009635A1 (en) | 2000-06-21 |
EP1009635B1 EP1009635B1 (en) | 2001-12-12 |
Family
ID=27217434
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98936101A Expired - Lifetime EP1009635B1 (en) | 1997-06-03 | 1998-06-02 | Method and device for driving a printing press with an integrated imaging device |
Country Status (4)
Country | Link |
---|---|
US (1) | US6393987B1 (en) |
EP (1) | EP1009635B1 (en) |
DE (1) | DE59802466D1 (en) |
WO (1) | WO1998055312A1 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4047993B2 (en) * | 1999-01-04 | 2008-02-13 | 理想科学工業株式会社 | Stencil printing method |
WO2002024458A1 (en) * | 2000-09-20 | 2002-03-28 | Koenig & Bauer Aktiengesellschaft | Printing unit |
CN1209243C (en) * | 2000-09-20 | 2005-07-06 | 柯尼格及包尔公开股份有限公司 | Printing unit |
US6796239B2 (en) * | 2001-03-22 | 2004-09-28 | Heidelberger Druckmaschinen Ag | Method and device for driving a printing press |
US6851368B2 (en) * | 2001-08-29 | 2005-02-08 | Heidelberger Druckmaschinen Ag | Rotary printing press having a switchable speed-change gear mechanism with plant gears |
DE10249727B4 (en) | 2001-11-21 | 2008-06-26 | Heidelberger Druckmaschinen Ag | Printing machine with a central plate cylinder |
US6918338B2 (en) * | 2003-01-30 | 2005-07-19 | Hewlett-Packard Development Company, L.P. | Printing system |
DE202006004340U1 (en) * | 2006-03-18 | 2006-05-11 | Man Roland Druckmaschinen Ag | Sheetfed |
DE102009018476A1 (en) * | 2008-05-15 | 2009-11-19 | Heidelberger Druckmaschinen Ag | Phase-correct engagement of different rotating cylinders |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1168449B (en) * | 1962-05-02 | 1964-04-23 | Schnellressenfab Heidelberg | Device for turning the cylinders on and off of a multi-color sheet-fed rotary printing press |
DE1210899B (en) * | 1962-07-06 | 1966-02-17 | Maschf Augsburg Nuernberg Ag | Equipment on multi-color sheet-fed rotary printing machines for controlling the printing devices for the individual printing units |
EP0047165B1 (en) * | 1980-09-03 | 1984-11-28 | Crosfield Electronics Limited | Improvements relating to rotary printing presses |
DE3344131C2 (en) * | 1983-12-07 | 1995-04-20 | Metronic Geraetebau | Flexographic printing unit for packaging printing |
US5163368B1 (en) * | 1988-08-19 | 1999-08-24 | Presstek Inc | Printing apparatus with image error correction and ink regulation control |
US4936211A (en) * | 1988-08-19 | 1990-06-26 | Presstek, Inc. | Multicolor offset press with segmental impression cylinder gear |
US4911075A (en) * | 1988-08-19 | 1990-03-27 | Presstek, Inc. | Lithographic plates made by spark discharges |
DE19515077B4 (en) * | 1995-04-28 | 2005-07-28 | Heidelberger Druckmaschinen Ag | Process for imaging a printing form on a printing form cylinder in a printing unit of a rotary printing press with an inking unit |
DE19612927B4 (en) * | 1995-05-11 | 2009-12-10 | Kodak Graphic Communications Canada Company, Burnaby | Printing machine and image forming method for a printing press |
US5713287A (en) * | 1995-05-11 | 1998-02-03 | Creo Products Inc. | Direct-to-Press imaging method using surface modification of a single layer coating |
DE19743770A1 (en) * | 1997-10-02 | 1999-04-08 | Heidelberger Druckmasch Ag | Method for operating a rotary printing press and device for carrying out the method |
-
1998
- 1998-06-02 WO PCT/DE1998/001528 patent/WO1998055312A1/en active IP Right Grant
- 1998-06-02 DE DE59802466T patent/DE59802466D1/en not_active Expired - Lifetime
- 1998-06-02 EP EP98936101A patent/EP1009635B1/en not_active Expired - Lifetime
-
1999
- 1999-11-22 US US09/450,630 patent/US6393987B1/en not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO9855312A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP1009635B1 (en) | 2001-12-12 |
US6393987B1 (en) | 2002-05-28 |
WO1998055312A1 (en) | 1998-12-10 |
DE59802466D1 (en) | 2002-01-24 |
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