EP2042314B1 - Cylindre de presse pour des bandes de papier à largeur variable - Google Patents

Cylindre de presse pour des bandes de papier à largeur variable Download PDF

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Publication number
EP2042314B1
EP2042314B1 EP07117345A EP07117345A EP2042314B1 EP 2042314 B1 EP2042314 B1 EP 2042314B1 EP 07117345 A EP07117345 A EP 07117345A EP 07117345 A EP07117345 A EP 07117345A EP 2042314 B1 EP2042314 B1 EP 2042314B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
channels
channel
width
offset
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.)
Revoked
Application number
EP07117345A
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German (de)
English (en)
Other versions
EP2042314A1 (fr
Inventor
Wolfgang Dennstedt
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.)
Wifag Maschinenfabrik AG
Original Assignee
Wifag Maschinenfabrik AG
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Application filed by Wifag Maschinenfabrik AG filed Critical Wifag Maschinenfabrik AG
Priority to DE502007003028T priority Critical patent/DE502007003028D1/de
Priority to AT07117345T priority patent/ATE459471T1/de
Priority to EP07117345A priority patent/EP2042314B1/fr
Publication of EP2042314A1 publication Critical patent/EP2042314A1/fr
Application granted granted Critical
Publication of EP2042314B1 publication Critical patent/EP2042314B1/fr
Revoked legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • B41F13/08—Cylinders

Definitions

  • the invention relates to a cylinder for a printing unit, in particular for an offset rotary printing machine for variable paper web widths and in particular a blanket or transfer cylinder, and a forme cylinder.
  • cylinders are provided in the form of cylinders and transfer cylinders or blanket cylinders, which in the circumferential direction with, for example, one, two or more coverings or lifts and in the axial direction, that is, the width or the length of the respective Cylinders, with one or more lifts.
  • the elevators are formed in a form cylinder, for example, as a plate-shaped printing plates.
  • the elevators of a transfer cylinder are preferably rubber blankets, which may be applied to a carrier plate and form a metal blanket.
  • the printing unit may be formed, for example, as a 9-cylinder satellite Druckeinlieit, in which 4 pairs each consisting of a forme cylinder and a transfer cylinder in a Gestell.vorzug mecanic pairs are arranged diametrically in preferably uniform distribution around a common impression cylinder.
  • variable paper widths may cause a problem with the blanket plate assembly.
  • a single blanket plate per cylinder could be used, but due to the size of this blanket plate leads to poor handling.
  • two separate blanket plates are used, there is a parting line between the two blanket plates used, so that no panorama can be printed in the middle area, which has this parting line.
  • three blanket plates can be printed error-free only if the paper web was previously cut and spread. However, this leads to rubber / rubber machines with great problems with color registration.
  • the WO2004 / 002739 A1 and the corresponding one EP 1 515 848 B1 disclose a pair of cylinders of a printing unit of an offset rotary printing press, consisting of a forme cylinder and a transfer cylinder, wherein the forme cylinder and the transfer cylinder in each case in openings extending below their lateral surface in the axial direction opening openings for inserting the ends of elevators, wherein for each printing plate at least one opening in the At least one opening of the forme cylinder rolls on at least one opening of the transfer cylinder, wherein the transfer cylinder is juxtaposed in its axial direction with at least three rubber blankets and along its circumference with a rubber blanket, wherein the form cylinder in its axial direction next to each other with the same to the transfer cylinder or a larger number of printing plates and along its circumference with two printing plates n is occupied, wherein the width of a printing form corresponds to the width of a rubber blanket or the widths of several printing forms complement the width of a rubber blanket.
  • each opening made in the forme cylinder and the transfer cylinder corresponds to the width of one of the elevators, respectively.
  • the openings of adjacent in the axial direction of the transfer cylinder, by the width the rubber blankets defined sections are arranged offset in the circumferential direction by 90 ° and by closed portions of the lateral surface axially spaced openings are aligned.
  • the openings of adjacent portions in the axial direction of the forme cylinder are arranged offset in the circumferential direction by 90 ° and by closed portions of the lateral surface axially spaced openings are aligned.
  • EP 1 310 363 A1 and EP 1 361 052 A2 a printing unit of a rotary printing press with a transfer cylinder and a forme cylinder is known, wherein the transfer cylinder has a channel for receiving one or more blankets and the forme cylinder at least two circumferentially of the forme cylinder arranged successively channels for receiving one or more printing plates on the forme cylinder, wherein at least one the channels of the forme cylinder is at least partially covered by a printing plate and wherein the at least partially covered channel for receiving one or more printing forms in the region of a channel for receiving one or more blankets of the cooperating transfer cylinder rolls.
  • the US 2006/0288890 shows a cylinder with two circumferentially offset channels A third channel is disposed between these channels.
  • a cylinder which may be formed according to the invention as a blanket or transfer cylinder or as a forme cylinder, has at least three channels, wherein at least two circumferentially offset from each other, and preferably has in the axial direction of the cylinder extending channels for attaching a covering, such as a blanket or metal blanket or to attach a plate-shaped printing forme.
  • the at least three channels are formed so that one of these channels is used for hanging or clamping a support plate or a blanket in the central region of the cylinder.
  • the channel can either have the width used for a printing process or extend over the entire width or axial length of the cylinder.
  • this channel can also be formed only in the middle region of the cylinder such that it has, for example, the same extent in the axial direction, starting from the axial half or a center of the cylinder.
  • this channel can be two sides wide and can be provided in the central region of the cylinder.
  • areas of the second channels in the axial direction and preferably offset in the circumferential direction may overlap with the first channel.
  • support plates or blankets are hung, clamped or fixed, which can be further offset or moved with respect to the center of the cylinder as in a channel which extends only across the width, which is needed for mounting a printing plate or support plate in normal operation.
  • a first channel approximately centrally in the axial direction of the cylinder over the width of the zones C, D is provided extending to which a printing plate or a rubber blanket can be attached or used, so that the printing forme or Rubber blanket 2 is provided sideways in the middle of the cylinder.
  • the two axially spaced preferably aligned second channels provided, which extend in the axial direction so far toward the center that an inner portion of the second channels axially overlaps with the respective outer region of the central first channel, wherein the inner portions of the second channels in a centrally applied Printing form or a rubber blanket at least partially under the middle printing form or rubber blanket can run.
  • the channels adjacent to the central channel extend, for example, completely over the width of the zones A, B or E, F and protrude into the zones C, D.
  • variable and in particular smaller paper web widths ie e.g. smaller than the width of one of the zones A to F, are printed without restrictions, since for example the blanket plates or printing plates can be arranged so that, for example, three adjacent paths can be printed without spreading.
  • three blankets on a cylinder known from the prior art can only be printed if the web was previously cut and spread, otherwise problems would result from the edges of the pads.
  • the channel slots introduced into the cylinder are overlapping, both narrow and wide pads, e.g. Blankets or printing plates, to be mounted.
  • the blanket plates and printing plates can be changed with relatively little effort and mounted on the cylinder so that the printed webs can be printed correctly even without spreading.
  • the angle or the angular offset or distance between the channels can be arbitrary and are preferably such that the channel beats are minimized.
  • the angles are preferably 180 °.
  • the angular offset is e.g. 5 to 20 ° to each other.
  • the second channels are offset in the circumferential direction to the first channel.
  • the second channels may be provided so that they are aligned and the same Angle are arranged offset relative to the first channel.
  • the second channels are not arranged in alignment and are arranged offset by different angles of, for example, + 90 ° and -90 ° or 90 ° and 180 ° to the first channel.
  • the invention may also be used for wider rolls for printing on, for example, 8 pages, 10 pages, or even more pages.
  • the channels are provided so that they extend at least beyond the boundary resulting from the sides to be printed on the lateral surface of the cylinder and at least partially protrude into the adjacent region of a side to be printed to flexible coverings, printing plates or rubber blankets be able to span, which can be introduced at different locations within the channel running in the axial direction, so as to be able to print so variable paper web widths preferably without a prior spread.
  • adjacent channels in the axial direction are offset from each other in the circumferential direction and overlap axially at least in part. Individual channels can continue to move, e.g. extend over the entire cylinder width. At least one and preferably at least two channels do not extend over the full cylinder width.
  • the overlapping of the channels used to fasten the coverings, that is blankets or printing forms, is preferably such that, in principle, blankets or printing forms could be fastened which overlap one another in the axial direction of the cylinder.
  • the axial overlap of the preferably circumferentially offset channels is for example between 0 and 100%, for example 5%, 10%, 12.5%, 15%, 20% or more of a paper web to be printed. For example, if the axial overlap or axial reach into a neighboring zone is 25%, such a cylinder can be used, for example, to print webs having a normal width, with blankets or printing forms being suspended in the zones normally provided for this purpose.
  • a rubber blanket can be stretched in each case due to the extending channels, so that printing on half the paper web widths at, for three adjacent tracks without prior spreading is possible.
  • each intermediate range of the width between the normal width and 50% of the normal width can also be printed, since the clamped, for example, in a central region of the cylinder rubber blanket can be reduced in width until it reaches the reaching into the zone channels borders, which for clamping of adjacent coverings, eg kaubuchtüchem can be used.
  • the above explanations also apply to covering the cylinder with printing plates instead of rubber blankets.
  • an adjustment or registration element such as a register cam, which serves to define a plate to be suspended with respect to the channel and preferably centered can be used.
  • the width of a rubber blanket is sized to correspond to the width of two printing forms.
  • the printing plates are preferably each the same width.
  • the rubber blankets are each the same width.
  • the rubber blankets may be provided on a support plate, for example, a dimensionally stable metal support plate, or independently.
  • holding devices known per se in the prior art may preferably be provided for holding angled regions or suspension legs of an elevator.
  • the invention further relates to the use of a cylinder as described above as a forme cylinder or as a transfer cylinder.
  • the transfer cylinder can be arranged cooperatively with a counter-pressure cylinder.
  • FIG. 1 shows a cylinder 1 of a printing unit of a rotary machine, in particular an offset rotary printing machine, from a first side.
  • the cylinder 1 can be designed as a forme cylinder or as a transfer cylinder and can be occupied in the circumferential direction, for example with an elevator and axially, that is, over its width, with, for example, three elevators.
  • the elevators are preferably formed as plate-shaped printing plates. If the cylinder is designed as a transfer cylinder, the elevators are preferably in each case applied to a support plate rubber blankets, the elevators for the transfer cylinder are preferably formed as a metal blanket.
  • the printing unit can be designed, for example, as a 14-cylinder satellite printing unit, in which in each case 2 pairs each consisting of a forme cylinder and a transfer cylinder are arranged in a frame on a counter-pressure cylinder, wherein the forme cylinder and / or the transfer cylinder the features of this invention.
  • the two impression cylinders preferably have a smooth closed metal surface without openings.
  • FIG. 1 two extending in the axial direction aligned channels 2a and 2b are provided, in which the printing plates or carrier plates can be mounted.
  • the cylinder 1 has in the region of its end faces bearer rings 1a and 1b.
  • edge zones are provided in which there is no channel.
  • the area of the cylinder 1 between the edge zones can be used to print a single paper web of width PBmax. If paper webs of smaller width are to be printed, then, for example, three paper webs of equal width 1 / 3PBmax adjacent to one another can be printed on.
  • blankets or blanket carrier plates in the in FIG. 1 clamped on the left and right shown second channels 2a and 2b so that the edges of the rubber blankets preferably along the in FIG. 1 dashed lines shown the boundaries of the individual zones A, B; C, D and E, F are lost.
  • FIG. 3 shows the in FIG. 1 shown rotated by 180 ° cylinder 1, wherein in the region of the central zone C, D extending in the axial direction of the first channel 3 is provided, which serves for mounting a rubber blanket in the region of the central zone.
  • 2 side-width blankets can be pulled up side by side on the cylinder 1 in the axial direction to print on 3 paper webs of the same width 1 / 3PBmax.
  • the smaller width of 1 / 3PBmin to be clamped on the cylinder 1 can be applied as follows: For the printing of the middle paper web is centered in the in FIG. 3 shown first channel 3 mounted a blanket plate, which has the width 1 / 3PBmin. Adjacent thereto, blanket plates can be mounted axially displaced in the first channels 2a and 2b, which are offset by 180 ° in the exemplary embodiment, so that they protrude into the central zone C, D by the axial length d, as in FIG FIG. 1 shown, so that the three adjacent blanket plates allow the printing of three adjacent webs without spreading.
  • the suspended in the first channels 2a and 2b blanket plates may, for example, only the width 1 / 3PBmin or have a greater width up to the maximum possible width in the embodiment 1 / 3PBmax + d.
  • Clamps (not shown) are disposed in the channels 2a, 2b and 3 to provide a secure hold for the edges or pad ends introduced therein.
  • the clamping elements are arranged so that sufficient clamping is ensured for all paper widths. This can be achieved for example by a larger number of adjacent clamping elements.
  • FIGS. 2 and 3 Folding funnels 5 are shown, via which the printed paper webs can be guided.
  • FIG. 4 shows a cross section of the cylinder 1 in the region of one of the channels 2a, 2b or 3.
  • the channel can be milled directly, so that the cylinder 1 has no insert.
  • known clamping or holding devices in the region of the channel or channels 2, 3, in particular for slot arrangement in blanket plate or spindle voltage, are provided.
  • a register cam 4 is fixedly provided in the channel and preferably in the centrally located first channel 3 in order to center the Hurlede center plate by means of the register cam or defined to fix.
  • FIG. 5 shows, on a scale of 1:10, the size ratios of an example roll width narrowing of a 6-page wide press from 2250 mm (3 x 750 mm) to 1800 mm (3 x 600 mm).
  • the middle former 5b may remain in its middle position when the outer or side pads are displaced inwardly by e, the outer folders 5a and 5c being displaced inwardly by the path f, respectively.

Claims (12)

  1. Cylindre pour machine à imprimer avec au moins trois canaux pour la fixation d'une garniture, dans lequel un premier canal (3) est prévu au moins dans une zone centrale (C, D) du cylindre et au moins deux seconds canaux (2a, 2b), décalés dans la direction périphérique par rapport au premier canal (3), sont prévus dans des zones latérales (A, B ; E, F) du cylindre (1), caractérisé en ce que les au moins deux seconds canaux (2a,2b), décalés dans la direction périphérique par rapport au premier canal (3), sont prévus dans des zones latérales (A, B ; E,F) du cylindre de manière que les au moins deux seconds canaux (2a, 2b) se recouvrent dans la direction axiale, au moins dans une zone partielle, les deux seconds canaux (2a, 2b) n'étant pas reliés entre eux.
  2. Cylindre pour machine à imprimer avec au moins trois canaux pour la fixation d'une garniture, dans lequel au moins deux canaux (2) sont écartés l'un de l'autre axialement, caractérisé en ce que au moins l'un de ces canaux (2) recouvre au moins en partie, dans la direction axiale, un autre canal (3) décalé dans la direction périphérique.
  3. Cylindre selon l'une quelconque des revendications 1 ou 2, dans lequel le premier canal (3) et les seconds canaux (2a, 2b) s'étendent dans la direction axiale du cylindre (1).
  4. Cylindre selon l'une quelconque des revendications 1, 2 ou 3, dans lequel le premier canal (3) et les seconds canaux (2a; 2b) se recouvrent dans la direction axiale, de la même largeur (d) dans chaque cas.
  5. Cylindre selon l'une quelconque des revendications précédentes, dans lequel le recouvrement du premier canal (3) par l'un ou les deux seconds canaux (2a; 2b) correspond à 5 %, 10 %, 20 % , 30 % ou 40 % de la longueur axiale du second canal (2a; 2b) respectif.
  6. Cylindre selon l'une quelconque des revendications précédentes, dans lequel les seconds canaux (2a,2b) sont disposés alignés axialement.
  7. Cylindre selon l'une quelconque des revendications précédentes, dans lequel le premier canal (3) s'étend presque totalement ou totalement sur la largeur ou la longueur axiale du cylindre (1).
  8. Cylindre selon l'une quelconque des revendications précédentes, dans lequel les seconds canaux (2a,2b) sont décalés d'un même angle dans la direction périphérique par rapport au premier canal (3).
  9. Cylindre selon l'une quelconque des revendications précédentes, dans lequel les seconds canaux (2a,2b) sont décalés d'un angle différent dans la direction périphérique par rapport au premier canal (3).
  10. Cylindre selon l'une quelconque des revendications précédentes, dans lequel l'angle de décalage entre le premier canal (3) et un second canal (2a; 2b) est égal à 90°, 180° ou 270°.
  11. Cylindre selon l'une quelconque des revendications précédentes avec une came de registre (4) dans le premier canal (3) pour permettre un accrochage centré et/ou central d'une garniture.
  12. Utilisation d'un cylindre selon l'une quelconque des revendications précédentes comme cylindre porte-cliché ou cylindre de transfert.
EP07117345A 2007-09-27 2007-09-27 Cylindre de presse pour des bandes de papier à largeur variable Revoked EP2042314B1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE502007003028T DE502007003028D1 (de) 2007-09-27 2007-09-27 Zylinder für ein Druckwerk für variable Papierbahnbreiten
AT07117345T ATE459471T1 (de) 2007-09-27 2007-09-27 Zylinder für ein druckwerk für variable papierbahnbreiten
EP07117345A EP2042314B1 (fr) 2007-09-27 2007-09-27 Cylindre de presse pour des bandes de papier à largeur variable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP07117345A EP2042314B1 (fr) 2007-09-27 2007-09-27 Cylindre de presse pour des bandes de papier à largeur variable

Publications (2)

Publication Number Publication Date
EP2042314A1 EP2042314A1 (fr) 2009-04-01
EP2042314B1 true EP2042314B1 (fr) 2010-03-03

Family

ID=39101049

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07117345A Revoked EP2042314B1 (fr) 2007-09-27 2007-09-27 Cylindre de presse pour des bandes de papier à largeur variable

Country Status (3)

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EP (1) EP2042314B1 (fr)
AT (1) ATE459471T1 (fr)
DE (1) DE502007003028D1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10228968B3 (de) 2002-06-26 2004-01-29 Koenig & Bauer Ag Zylinderpaar eines Druckwerks einer Rotationsdruckmaschine
JPH1071694A (ja) * 1996-08-30 1998-03-17 Mitsubishi Heavy Ind Ltd 印刷胴
EP1233864B1 (fr) 1999-12-02 2003-10-22 Koenig & Bauer Aktiengesellschaft Element d'impression d'une presse rotative
DE50209830D1 (de) * 2001-04-09 2007-05-10 Koenig & Bauer Ag Druckwerk einer Druckmaschine
DE10249947A1 (de) * 2002-10-26 2004-05-13 Man Roland Druckmaschinen Ag Druckwerk einer Rollenrotationsdruckmaschine für Zeitungsdruck

Also Published As

Publication number Publication date
ATE459471T1 (de) 2010-03-15
DE502007003028D1 (de) 2010-04-15
EP2042314A1 (fr) 2009-04-01

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