WO2001049596A2 - Bogenverarbeitende druckmaschine - Google Patents
Bogenverarbeitende druckmaschine Download PDFInfo
- Publication number
- WO2001049596A2 WO2001049596A2 PCT/DE2000/004600 DE0004600W WO0149596A2 WO 2001049596 A2 WO2001049596 A2 WO 2001049596A2 DE 0004600 W DE0004600 W DE 0004600W WO 0149596 A2 WO0149596 A2 WO 0149596A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- printing
- cylinder
- gripper
- sheet
- printing machine
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F21/00—Devices for conveying sheets through printing apparatus or machines
- B41F21/10—Combinations of transfer drums and grippers
Definitions
- the present invention relates to a sheet-processing printing machine with at least one flexographic or offset printing cylinder and at least one impression cylinder with at least one sheet-guiding gripper
- the high-pressure process is known, which is distinguished by the fact that the printing elements of the printing form are raised, while the non-printing parts are recessed.
- the planographic printing process is known, in which the printing elements and the non-printing parts of the printing form (practically) lie in one plane.
- the gravure printing process in which the printing elements of the printing form are recessed, is particularly widespread in magazine printing.
- the so-called printing process or screen printing process is also known, in which at the printing points the Color is transferred to the substrate through screen-like openings in the printing form
- high-pressure processes also include so-called flexographic printing or anil printing, in which the printing plate is flexible
- the offset printing in use today belongs to the category of planographic printing. Appropriate treatment makes the parts that are supposed to print oleophilic, that is, they take on the (greasy) ink when they are colored, while the parts that are not supposed to print become oleophobic, ie they repel the paint
- sheets are individually removed from a stack and transferred by means of a transfer cylinder to an impression cylinder or impression cylinder which is in contact with the impression cylinder. During this process, the printing ink previously applied to the impression cylinder is transferred to the sheet
- the sheet-guiding flexographic printing and offset printing machines available on the market have printing cylinders that have at least one recess that extends in the axial direction, the so-called plate clamping channel.
- the flexible printing plate is clamped between two adjacent recesses of the plate clamping cylinder
- the impression cylinders In order to enable the transport of the sheets, the impression cylinders generally have a gripper, which consists of a gripper arm and a gripper pad.
- the gripper is in arranged a recess of the press cylinder.
- the sheet to be transported lies with its side facing the impression cylinder on the gripper base.
- the gripper arm is now pressed onto the side of the sheet opposite the gripper pad. If the impression cylinder now rotates, the sheet is transported through the gripper, which holds the sheet between the gripper pad and the gripper arm.
- the roll-guiding printing machines have printing cylinders without cutouts. Since no individual sheets have to be gripped in the roll-guiding printing machines, the grippers in the impression cylinder or impression cylinder can be dispensed with. Consequently, no part of the gripper protrudes beyond the outer contour of the impression cylinder, so that the missing recess in the plate clamping cylinder does not lead to any disadvantage.
- a so-called seal which has a closed cylinder shape and surrounds the entire printing cylinder, can be used with the roller-guiding printing presses. For example, paper can be continuously printed on rolls.
- the known sheet-guiding offset and flexographic printing machines have the disadvantage that, on the one hand, the flexible printing plates have to be individually adjusted on the plate clamping cylinder and, on the other hand, that the impression cylinder of the known offset and flexographic printing sheet machines cannot be used for other printing processes. since the gripping arm protrudes beyond the outer contour of the impression cylinder in the holding position, so that the impression cylinder must inevitably have recesses. However, such recesses are unacceptable, for example, in the rotogravure printing process, since here the printing cylinder dips into the ink and therefore excess ink has to be "scraped off".
- the present invention is therefore based on the object of providing a sheet-guided offset printing or flexographic printing machine which is versatile, easy to adjust and inexpensive to produce.
- the circumferential surface of the impression cylinder is essentially understood to mean that part of the surface of the impression cylinder which bears against the impression cylinder. If necessary, the impression cylinder can have areas with a smaller radius, so that strictly speaking the circumferential surface of the impression cylinder in this area describes a cylinder with a smaller radius. What is meant here, however, is only the areas on the impression cylinder on which the sheet rests during the printing process.
- This new arrangement of the gripper for offset and flexographic printing processes also has the advantage that this impression cylinder can also be used for other printing processes, e.g. gravure can be used.
- this impression cylinder can also be used for other printing processes, e.g. gravure can be used.
- the impression cylinders according to the invention can be used both in roll-guiding and in sheet-guiding printing machines. Furthermore, if necessary, a swift conversion of a sheet-guiding printing machine into a roll-guiding printing machine and vice versa is possible.
- the grippers according to the invention are used in a roll-guiding printing press, the gripper-receiving recess of the impression cylinder is preferably at least partially closed by a device, which can also be combined with the gripper arm, in order to enlarge the area to be printed on the web.
- the arrangement of the grippers lying lower in the radial direction inevitably results in a small bending of the arch in the gripping region, ie in the edge region of the arch. However, it has been shown that this bending surprisingly has no disruptive influence on the registration accuracy. In addition, the non-printable edge area of the sheet is inevitably enlarged somewhat.
- the paper guide which is carried out by the gripper, is located radially further inside in the arrangement according to the invention than the so-called printing area, i.e. H. the area in which the sheet is printed must be taken into account when designing the printing press, that the printing area and sheet-guiding area now have a different rotational speed at the same angular speed.
- two separate drives e.g. gear drives
- gear drives generally have to be provided both for the sheet guide and for the printing periphery.
- the gripper consists of a gripper arm and a gripper pad, at least the gripper arm being movable relative to the gripper pad.
- the gripper arm can be arranged so as to be pivotable about a pivot point. As soon as the sheet lies on the gripper pad, the gripper arm swivels onto the gripper pad, so that the sheet is clamped between the gripper pad and the gripper arm. If the impression cylinder and impression cylinder now rotate at the same angular speed but in the opposite direction, the sheet is guided between the impression cylinder and impression cylinder with the aid of the gripper and printed at the same time.
- At least one printing cylinder is arranged above the sheet run.
- the printing cylinder is easily accessible, so that changing the printing plates or the seal is easily possible.
- An embodiment is particularly preferred in which at least one flexographic printing cylinder or an offset printing cylinder, if appropriate with its ink supply device, can be exchanged for a gravure printing cylinder with a corresponding ink supply device.
- the printing press can then be converted as required.
- several flexographic printing cylinders or offset printing cylinders or gravure cylinders can also be arranged one after the other with corresponding drying devices.
- rotogravure cylinders and flexographic printing cylinders or offset printing cylinders can be combined as required in a so-called sheet-guiding hybrid printing press.
- a sheet-fed hybrid printing machine ne which combines the qualitative advantages of gravure printing with inexpensive flexographic printing or offset printing, can easily be realized on the basis of the present invention.
- the gripper or the gripper pad is adjustable such that, depending on the application, the gripper arm is either positioned such that it is arranged radially inside the outer contour of the impression cylinder in the arc-guiding position or radially outside.
- the gripper can be arranged such that the sheets are not bent or bent in the region of the gripping.
- the printing press preferably has at least one adjustable impression cylinder whose distance from the adjacent transfer cylinder can be varied at least within certain limits, so that the peripheral speed of the paper guide can be adapted to the peripheral speed of the printing periphery.
- Figure 2 shows an alternative sheet-guiding position of the gripper.
- the outer contour of the impression cylinder or impression cylinder is indicated in FIG. 1 by the dashed line labeled 1.
- the dashed line denoted by 2 represents the outer contour of the printing cylinder.
- the sheet 3 to be guided is clamped between the gripper base 4 and the gripper arm 5 in the position shown.
- the gripper i. H. the gripper pad 4 and the gripper arm 5 are connected to the impression cylinder.
- the gripper arm is arranged in such a way that it runs radially within the outer contour of the impression cylinder 1.
- the arch is inevitably slightly curved or bent in the edge region. Numerous tests have shown that this minimal curvature of the sheet surprisingly does not lead to any registration problems in flexographic printing or in offset printing.
- the gripper pad is adjustable.
- the gripper pad In the sheet-guiding position of the gripper shown in FIG. 2, the gripper pad has been displaced outwards in the radial direction. This position corresponds essentially to the position of the grippers in the conventional sheet-guiding printing machines. It can be clearly seen that the Gripper arm protrudes beyond the recess in the impression cylinder. In this position, the non-printable edge area of the sheet is minimal.
- This position has the advantage over the position shown in FIG. 1 that the sheet is not kinked in its edge region.
- this setting of the gripper is only possible if the corresponding pressure cylinder has a recess 6, for. B. in the form of a plate clamping channel 6.
- the adjustability ensures that the most favorable position of the gripper can always be set depending on the printing cylinder used.
- the flexibility of the sheet-guiding flexographic printing machines and the sheet-guiding offset printing machines can be significantly increased by the present invention.
- all known printing processes can now be combined in any way in one printing press.
- a special embodiment has the subsequent replacement of the pressure cylinder. In this way, depending on the desired printing, it can be selected for each individual printing step in a modular manner whether printing is to be carried out using gravure printing, flexographic printing or offset printing.
Landscapes
- Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
- Rotary Presses (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
- Separation, Sorting, Adjustment, Or Bending Of Sheets To Be Conveyed (AREA)
- Soil Working Implements (AREA)
- Apparatuses And Processes For Manufacturing Resistors (AREA)
- Crushing And Pulverization Processes (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE50014191T DE50014191D1 (de) | 1999-12-29 | 2000-12-22 | Bogenverarbeitende druckmaschine |
EP00991551A EP1242299B1 (de) | 1999-12-29 | 2000-12-22 | Bogenverarbeitende druckmaschine |
JP2001550140A JP2003521394A (ja) | 1999-12-29 | 2000-12-22 | シート処理用印刷機 |
AU33596/01A AU3359601A (en) | 1999-12-29 | 2000-12-22 | Printing machine for processing sheets |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19963574.9 | 1999-12-29 | ||
DE19963574A DE19963574A1 (de) | 1999-12-29 | 1999-12-29 | Bogenverarbeitende Druckmaschine |
Publications (2)
Publication Number | Publication Date |
---|---|
WO2001049596A2 true WO2001049596A2 (de) | 2001-07-12 |
WO2001049596A3 WO2001049596A3 (de) | 2002-03-28 |
Family
ID=7934869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2000/004600 WO2001049596A2 (de) | 1999-12-29 | 2000-12-22 | Bogenverarbeitende druckmaschine |
Country Status (8)
Country | Link |
---|---|
EP (1) | EP1242299B1 (de) |
JP (1) | JP2003521394A (de) |
CN (1) | CN1414906A (de) |
AT (1) | ATE357392T1 (de) |
AU (1) | AU3359601A (de) |
DE (2) | DE19963574A1 (de) |
TW (1) | TW504457B (de) |
WO (1) | WO2001049596A2 (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102004020252B4 (de) | 2003-05-07 | 2019-03-07 | Heidelberger Druckmaschinen Ag | Einrichtung zur Förderung von Bogen durch eine drucktechnische Maschine |
US20070175346A1 (en) * | 2006-02-02 | 2007-08-02 | Goss International Americas, Inc. | Reverse air flow web stabilizer |
DE102007015347A1 (de) * | 2007-03-30 | 2008-10-02 | Koenig & Bauer Aktiengesellschaft | Verfahren zur Verminderung von Schwingungen in bogenverarbeitenden Rotationsdruckmaschinen |
DE102009054744A1 (de) | 2009-01-30 | 2010-08-05 | Manroland Ag | Greiferanordnung an Bogen führenden Zylindern |
DE102009030400A1 (de) | 2009-06-25 | 2011-01-05 | Steinemann Technology Ag | Bogenrotationsdruckmaschine mit Vollzylinder |
DE102011080321B4 (de) | 2010-09-09 | 2014-08-28 | manroland sheetfed GmbH | Greiferanordnung an Bogen führenden Zylindern |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2086319A (en) * | 1934-01-08 | 1937-07-06 | Koch Paul | Sheet-fed intaglio rotary printing machine |
US3163558A (en) * | 1962-04-09 | 1964-12-29 | Pid Corp | Combined sheet support roll and sheet gripper assembly |
EP0045374A1 (de) * | 1980-08-01 | 1982-02-10 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Greifereinrichtung an Zylindern für Druckmaschinen, insbesondere Bogenrotationsdruckmaschinen |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1611297A1 (de) * | 1967-11-25 | 1970-12-10 | Albert Schnellpressen | Greifersystem an einem Bogen-UEberfuehrzylinder einer Bogen-Tiefdruckrotationsmaschine |
DE2200530C3 (de) * | 1971-02-01 | 1975-06-12 | Adamovske Strojirny, N.P., Adamov (Tschechoslowakei) | Vorrichtung für das Erfassen von Bogen an einem hohlen Zylinder, insbesondere einer Druckmaschine |
DD149340A1 (de) * | 1980-02-29 | 1981-07-08 | Karlheinz Fischer | Einrichtung zur steuerung von schwingwellen in bogenfuehrungszylindern |
DE3049067C2 (de) * | 1980-12-24 | 1982-12-16 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Greifeinrichtung am Druckzylinder für Bogenrotations-Tiefdruckmaschinen |
CA2241973C (en) * | 1996-02-19 | 2004-12-07 | Johannes Georg Schaede | Impression cylinder of a sheet-fed machine |
-
1999
- 1999-12-29 DE DE19963574A patent/DE19963574A1/de not_active Ceased
-
2000
- 2000-12-22 JP JP2001550140A patent/JP2003521394A/ja active Pending
- 2000-12-22 DE DE50014191T patent/DE50014191D1/de not_active Expired - Fee Related
- 2000-12-22 AU AU33596/01A patent/AU3359601A/en not_active Abandoned
- 2000-12-22 CN CN00818042.3A patent/CN1414906A/zh active Pending
- 2000-12-22 EP EP00991551A patent/EP1242299B1/de not_active Expired - Lifetime
- 2000-12-22 WO PCT/DE2000/004600 patent/WO2001049596A2/de active IP Right Grant
- 2000-12-22 AT AT00991551T patent/ATE357392T1/de not_active IP Right Cessation
-
2001
- 2001-02-02 TW TW089128350A patent/TW504457B/zh not_active IP Right Cessation
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2086319A (en) * | 1934-01-08 | 1937-07-06 | Koch Paul | Sheet-fed intaglio rotary printing machine |
US3163558A (en) * | 1962-04-09 | 1964-12-29 | Pid Corp | Combined sheet support roll and sheet gripper assembly |
EP0045374A1 (de) * | 1980-08-01 | 1982-02-10 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Greifereinrichtung an Zylindern für Druckmaschinen, insbesondere Bogenrotationsdruckmaschinen |
Also Published As
Publication number | Publication date |
---|---|
TW504457B (en) | 2002-10-01 |
DE50014191D1 (de) | 2007-05-03 |
AU3359601A (en) | 2001-07-16 |
WO2001049596A3 (de) | 2002-03-28 |
ATE357392T1 (de) | 2007-04-15 |
DE19963574A1 (de) | 2001-07-05 |
EP1242299A2 (de) | 2002-09-25 |
CN1414906A (zh) | 2003-04-30 |
EP1242299B1 (de) | 2007-03-21 |
JP2003521394A (ja) | 2003-07-15 |
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