EP2349722B1 - Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets - Google Patents

Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets Download PDF

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Publication number
EP2349722B1
EP2349722B1 EP09771271A EP09771271A EP2349722B1 EP 2349722 B1 EP2349722 B1 EP 2349722B1 EP 09771271 A EP09771271 A EP 09771271A EP 09771271 A EP09771271 A EP 09771271A EP 2349722 B1 EP2349722 B1 EP 2349722B1
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EP
European Patent Office
Prior art keywords
cleaning
rubber blanket
modules
blanket
movement
Prior art date
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Application number
EP09771271A
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German (de)
English (en)
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EP2349722A1 (fr
Inventor
Michael Kasper
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Individual
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Individual
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Priority to PL09771271T priority Critical patent/PL2349722T3/pl
Publication of EP2349722A1 publication Critical patent/EP2349722A1/fr
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/06—Cleaning arrangements or devices for offset cylinders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2235/00—Cleaning
    • B41P2235/10—Cleaning characterised by the methods or devices
    • B41P2235/20—Wiping devices
    • B41P2235/24—Wiping devices using rolls of cleaning cloth
    • B41P2235/246—Pressing the cleaning cloth against the cylinder

Definitions

  • the present invention relates to a device for cleaning blankets on blanket cylinders.
  • Offset printing is the most widespread printing process. Offset printing is a high-quality planographic printing process in which a printing plate is printed indirectly via a blanket as an intermediate carrier onto the respective printing substrate, for example paper.
  • An offset printing machine can consist of three cylinders in the basic structure: the plate cylinder, the blanket cylinder and the impression cylinder.
  • a printing process can take place as follows: the printing plate mounted on the plate cylinder adopts greasy printing ink at its printing sites. The non-printing areas take on water. Since the büdsourceden and image-free areas of the printing plate lie in a plane, this method is also called planographic printing.
  • the plate now transfers the page-right printed image reversed on the blanket, which is stretched on the blanket cylinder. This transmits the now reversed image on the passing between printing cylinder and blanket cylinder paper, on which it now appears again as the right side as a print image.
  • a device for cleaning a blanket is in DE 10008214 A1 disclosed.
  • the blanket cylinder on the one hand may have a very long axis and further avoids the banding through the cleaning cloth on the blanket
  • the present invention avoid the other aforementioned disadvantages.
  • a device for cleaning the blanket which is clamped on a blanket cylinder of a printing press, which is characterized in that the cleaning device at least one movement and Transport device, at least two interconnected cleaning modules, at least one circulsstuchaufwickelrolle and at least one cleaning cloth supply roll, wherein the movement and transport device is arranged so that it can move the interconnected cleaning modules parallel to the axis of the blanket cylinder and the movement and transport device is further configured in that it transports a cleaning cloth provided on the cleaning cloth supply roll over the cleaning modules onto the cleaning cloth take-up reel.
  • the movement and transport device not only ensures the transport of the cleaning cloth from the cleaning cloth supply roll past the blanket to the cleaning cloth take-up reel, but is also responsible for the movement of the cleaning modules, for instance parallel to the blanket cylinder axis.
  • the parallel to the axis movement of the cleaning modules but excludes no further direction of movement of the cleaning modules.
  • the cleaning modules do not have to be moved continuously during the entire cleaning process, they may even stand still for a while or even stand still during the entire cleaning period.
  • the cleaning cloth supply roll accommodates the supplies of fresh, unused cleaning cloth, the cleaning cloth take-up roll picks up the cleaning cloth soiled by the cleaning process.
  • a cleaning module in the sense of this application is a module which also has the task to press the cleaning cloth on the blanket.
  • the cleaning cloth may be dry in this process, moistened with water or a cleaning chemical, or it may be treated in a completely different way. It should of course be suitable for cleaning the blanket.
  • the cleaning of the blanket can be assisted and / or carried out by movement of the cleaning cloth on the blanket surface. This movement of the cleaning cloth to the blanket surface can be composed on the one hand by the rotation of the blanket cylinder about its own axis and by movement of a part of the cleaning module or even the whole cleaning module. Of course, these two types of movement complement and support each other during the cleaning work.
  • the cleaning work is divided from the blankets on blanket cylinders to several smaller cleaning modules.
  • These cleaning modules are in the simplest case cylindrical, wherein the cleaning cloth is guided over the cylindrical roller (sleeve) and thereby pressed against the blanket.
  • This cylindrical sleeve can now also have the known devices for optimizing the contact pressure of the cloth on the blanket. So here are an inflatable rubber ring is known, which is fed by compressed air. However, all other known contact pressure devices are also to be used.
  • the length of the cylindrical roller in the device according to the invention is not as long as the total length of the blanket axis, so that advantageously several of these cleaning modules are joined together to completely clean the blanket over its entire axis length of the blanket cylinder.
  • cleaning modules for example, linearly connected (in a straight line behind each other), so that the one end of a cleaning module is connected to the beginning of the respective neighbors via a connecting means.
  • a connecting means between the modules are conventional and known mechanical connectors, such as simple screw, plug or bayonet. Any other connection option for the cleaning modules is in turn also conceivable and usually easy to install in the cleaning device. You just have to be suitable to meet the mechanical requirements of the cleaning process.
  • the cleaning modules Since no sizes are required for the cleaning modules, they can be produced exactly in the desired size and installed in the respective printing presses. As a result, they can be adapted in their size to the common formats of the respective cleaning cloth or the respective print formats or page formats. Since high quality cloth, including the cleaning fleece, is not produced in all sizes, the choice of a cleaning module in a certain size, the use of this high quality cloth can be secured. If a less expensive cloth is sufficient for the present cleaning work, and if this is only available in a specific cut, then the cleaning module can now be adapted in size to the size of this cloth. The smaller axis length of the cleaning modules also leads to a more uniform contact pressure along the axis of the cleaning modules on the blanket. Thus, the contact pressure for the cleaning work can be optimally adjusted.
  • the connecting bridges between the cleaning modules which need not consist solely of the connecting means are now not capable of cleaning the blanket, so that would be left on the blanket not cleaned vertical surfaces.
  • the cleaning modules are moved back and forth on the rubber blanket parallel to the blanket cylinder axis by means of the movement and transport device. This movement cleans the otherwise uncleaned areas between the cleaning modules.
  • it also represents an improvement in the quality of cleaning, since the movement of the cleaning cloth under the contact pressure with which the cleaning module presses on the blanket, the detachment of even less soluble foreign matter supports.
  • a cleaning according to the prior art wipes the cleaning cloth, although with a certain pressure on the blanket, but only in one direction.
  • the blanket is not only wiped in the direction of rotation of the axis of the blanket cylinder, but also parallel to this.
  • the forces from different directions act on the foreign body to be removed. This will make them easier to peel off the cloth.
  • the movement of the cleaning modules also prevents streaking by the "webs" on the cleaning cloths, since the "webs” can not permanently act on the same areas of the blanket and leave their traces there. This significantly increases the print quality and the life of the blanket, resulting in lower operating costs. By eliminating the repair time, which is necessary for replacing the blanket, a greater production capacity of the printed products is achieved.
  • the device for cleaning the blanket is set up so that the moving and transporting device move the interconnected cleaning modules so that the cleaning cloth passing over the cleaning modules touches the entire width and the entire length of the blanket. With the touch of the blanket, of course, this is also cleaned, so that the entire surface of the blanket is cleaned.
  • the movement and transport device even some areas of the blanket surface are cleaned by more than one cleaning module because the paths of movement of the cleaning modules overlap can. Thus, in this case, a more effective cleaning work can be assumed.
  • This embodiment of the invention now ensures that even the entire surface of the blanket is detected in one revolution of the cleaning cloth and at best even completely cleaned.
  • This can be done for example by a clocking, which dictates the stoppage of the blanket cylinder.
  • the cleaning modules move back and forth on the stationary blanket. After a certain freely adjustable period of time, the rubber blanket is moved a little by turning the blanket cylinder, so that a new location can be cleaned. After a complete revolution of the blanket cylinder can thus be cleaned in the ideal case, the entire blanket.
  • the cleaning cloth is transported further by the movement and transport device, that is, unrolled from the Vollatsrolle or rolled onto the take-up reel.
  • a renewed contamination of the blanket is avoided by an already soiled cleaning cloth.
  • a complete cleaning of the blanket can be achieved in that the reciprocating motion of the cleaning cloth is carried out by means of the cleaning modules in a certain speed.
  • the blanket can even be continuously moved by a continuous rotation of the blanket cylinder, so no timing for determining the blanket standstill is necessary.
  • the connecting bridges that connect the cleaning modules with each other are flexible in itself. Flexibility of the connection bridges in the sense of this application means that it is possible to bend the connecting bridges, to lengthen or shorten them, without damaging them or somehow impairing their function. This allows the arrangement of the cleaning modules to change each other. In the simplest case, these are arranged linearly next to one another. It is now also possible to move a cleaning module to the rear. Depending on the setting of the movement of the cleaning modules on the blanket, the blanket is now cleaned very thoroughly in some places, since these areas are wiped off several times by different cleaning modules.
  • the contamination of the cleaning cloth and / or the contamination of the blanket is measured by means of a measuring device.
  • a measuring device This embodiment is intended to ensure the quality of cleaning at a certain level.
  • the blanket is further rotated in this embodiment of the invention only after a successful cleaning process.
  • the determination of when a cleaning process is called successful, is made with the help of a measuring device.
  • Such a meter can react, for example, to the color of the blanket or on the color of the cleaning cloth and only then release the further movement of the blanket cylinder when the original color of the blanket is detected or the original color of the cleaning cloth is just not recognized. In the former case, the blanket is cleaned so far that the meter recognizes the color of the blanket as the original one.
  • the contamination of the cleaning cloth is considered as a criterion for the degree of cleaning of the blanket.
  • a clean cleaning cloth will eventually wipe the cleaned blanket. This is exactly the moment in which the blanket cylinder is further rotated and not yet cleaned blanket takes the place of the cleaned. Since the term cleaned up is not meaningful for a measuring instrument, the measuring instrument is calibrated so that certain reached freely selectable measured values for this term are "cleaned", and then release the rotation of the blanket cylinder.
  • the inventive invention is constructed so that the cleaning modules are mounted on horizontally equal height to each other.
  • This embodiment represents only one possibility of the arrangement for the cleaning modules. However, it is technically easy to do and thus very low in cost.
  • the connection bridges form a straight line between the individual cleaning modules.
  • the cleaning line ie the line in which the cleaning of the blanket proceeds, is straight in this embodiment and at an approximately right angle to the side edges.
  • the cleaning modules are not mounted horizontally at the same height to each other.
  • the cleaning line in this case does not run in a straight line at a right angle to the side edges of the blanket.
  • a further preferred embodiment of the device for cleaning the blanket is characterized in that the cleaning modules not only move parallel to the blanket cylinder axis, but can also perform up and down movements on the surface of the blanket. Alone the movement of the cleaning modules alone ensures a greater cleaning effect of the blanket. The additional up and down movements on the blanket increase the cleaning performance even more.
  • the cleaning cloth "attacks" the paint residue from almost all directions, not only from right and left, but now also from above and below, and therefore also finds new points of attack to solve the paint residue from the blanket.
  • this embodiment of the invention represents a technically more complex construction of the movement and transport device. The result, however, fully justifies this effort.
  • At least one further cleaning module is not mounted on the same horizontal level as the other cleaning modules, which are horizontally at the same height to each other.
  • the further cleaning module can smooth the possibly still existing strips on the blanket and thus remove. This is necessary if a cleaning cloth has been used to clean the blanket, which has claimed the blanket in this regard, ie a cloth having the "tracks" described above.
  • the device for cleaning the blanket is set up so that the contact pressure of the cleaning modules on the blanket is freely adjustable. This means that a separate contact pressure can be set for each cleaning module. If certain areas of the blanket cleaned by several cleaning modules, so can make a pre-cleaning by a targeted adjustment of the contact pressure, the first cleaning module, while the other cleaning modules make the post-cleaning or smoothing the lines and dents.
  • the advantage of this embodiment is obvious, on the one hand, the cleaning quality is increased, on the other hand, the blanket is spared and can be used longer.
  • the movement of the cleaning modules is synchronized so that they move in a common mode back and forth, respectively in the same direction or the movement of the cleaning modules extends towards or away from each other. If more than two cleaning modules are provided for cleaning, then at least two of the cleaning modules move toward or away from each other.
  • the cleaning modules can be controlled individually, ie individually in their movement on the blanket.
  • the cleaning modules are arranged so that the cleaning cloths can be treated by a device mounted there.
  • Conceivable here is the individual humidification with different cleaning agents.
  • the front cleaning modules can apply "hard” cleaning agents (strong chemicals) to the cleaning cloths, but the back cleaning modules wet their cleaning cloth with water.
  • the device in particular its transport and movement device is controlled electronically and / or pneumatically. This does not in any way preclude another type of control or regulation of the cleaning device as a whole or of its individual modules or subassemblies.
  • the device for cleaning the blanket which is clamped on a blanket cylinder of a printing press, can be easily constructed by their construction by means of individual modules, rebuilt, maintained and repaired in case of damage.
  • the cleaning modules are interchangeable and even in size because the connecting bridges are flexible in themselves.
  • Fig. 1 schematically shows an inventive device for cleaning a blanket.
  • the movement and transport device 6 is in the FIG. 1 not shown in detail, wherein the lines to the blanket cylinder 1 , to the interconnected cleaning modules 2 , to the cleaning cloth supply roll 3 and the cleaning cloth take-up reel 4 represent the connection to the transport and movement device, of which it is part.
  • the cleaning cloth is unwound from the supply roll 3 passed over the cleaning modules 2 , there pressed against the blanket with a defined contact pressure and then passed back to the cleaning cloth take-up reel 4 , where the soiled cloth is wound, then to be disposed of.
  • the arrows show the direction of movement in which the cleaning modules 2 can be moved back and forth. This sideways movement of the cleaning modules 2 in combination with the movement of the blanket to the blanket cylinder axis is sufficient in most cases already for a thorough cleaning of the blanket.
  • Fig. 2 schematically shows the spanned on the blanket cylinder 1 rubber blanket with two cleaning modules 2 and their range during movement.
  • the interconnected cleaning modules 2 are on the blanket and are pressed there with a certain freely adjustable contact pressure on the blanket. Between the two cleaning modules 2 , which are interconnected by a connecting bridge, there is a gap which would not be cleaned without the sideways movement of the cleaning modules.
  • the size of the cleaning modules 2 and the distances of these from each other and the edge of the blanket must be well defined, otherwise it can come to not cleaned areas on the blanket.
  • the cleaning module 2 can not drive over the edge of the blanket in most printing presses without disturbing the ongoing operation of the printing press. Therefore, the cleaning module 2 stops approximately at the blanket edge.
  • the printing cylinder has a width of 140 cm, so that 4 x 35 such pages can be printed side by side in the mentioned formats. This is state of the art and can be extended by the width of an additional 35 cm for these formats.
  • Fig. 3 schematically shows the blanket with cleaning modules 2 and the flexible connecting bridges 7.
  • the cleaning modules not only in a row could be horizontal to each other, but they can also be offset from one another. This can cause multiple cleaning by printing particularly stressed areas on the blanket.
  • the cleaning module which is now behind the other, smooth out the depressed by the "tracks" of the cleaning cloth.

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  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Claims (17)

  1. Dispositif de nettoyage d'un blanchet qui est tendu sur un cylindre porte-blanchet (1) d'une presse d'impression, caractérisé en ce que :
    le dispositif de nettoyage comporte au moins un dispositif de déplacement et de transport (6), au moins deux modules de nettoyage reliés entre eux (2), au moins un rouleau de rembobinage du tissu de nettoyage (4) et au moins un rouleau de réserve de tissu de nettoyage (3), dans lequel
    - le dispositif de déplacement et de transport (6) est conçu pour déplacer les modules de nettoyage reliés entre eux (2) parallèlement à l'axe du cylindre porte-blanchet (1) ; et
    - le dispositif de déplacement et de transport (6) est conçu en outre pour transporter un tissu de nettoyage (5) fourni sur le rouleau de réserve de tissu de nettoyage (3) vers le rouleau de rembobinage du tissu de nettoyage (4) en passant par les modules de nettoyage (2).
  2. Dispositif de nettoyage d'un blanchet selon la revendication 1, caractérisé en ce que le dispositif de déplacement et de transport (6) déplace les modules de nettoyage reliés entre eux (2) de manière que le tissu de nettoyage (5) passant par les modules de nettoyage (2) entre en contact avec le blanchet sur toute la largeur et sur toute la longueur.
  3. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que les passerelles de liaison (7) qui relient ensemble les modules de nettoyage (2) sont intrinsèquement flexibles.
  4. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que l'encrassement du tissu de nettoyage (5) est mesuré à l'aide d'un appareil de mesure et en ce que, dans l'opération de nettoyage, le blanchet n'est tourné qu'après que soit atteinte une valeur de mesure déterminée.
  5. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que l'encrassement du blanchet est mesuré à l'aide d'un appareil de mesure et en ce que, dans l'opération de nettoyage, le blanchet n'est tourné qu'après que soit atteinte une valeur de mesure déterminée.
  6. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que les modules de nettoyage (2) sont disposés horizontalement à la même hauteur l'un par rapport à l'autre.
  7. dispositif de nettoyage d'un blanchet selon l'une des revendications 1 à 5, caractérisé en ce que les modules de nettoyage (2) ne sont pas disposés horizontalement à la même hauteur l'un par rapport à l'autre.
  8. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que les modules de nettoyage (2) ne se déplacent pas seulement parallèlement à l'axe du cylindre porte-blanchet, mais effectuent également des mouvements de montée et de descente à la surface du blanchet.
  9. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que les modules de nettoyage (2) effectuent des mouvements circulaires et/ou ellipsoïdaux à la surface du blanchet.
  10. Dispositif de nettoyage d'un blanchet selon la revendication 6, caractérisé en ce qu'au moins un autre module de nettoyage (2) ne se trouve pas horizontalement à la même hauteur que le reste des modules de nettoyage (2).
  11. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que la pression d'appui de chacun des modules de nettoyage (2) peut être réglée individuellement.
  12. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que le déplacement des modules de nettoyage (2) est synchronisé de manière qu'au moins deux des modules de nettoyage (2) se déplacent en va-et-vient dans la même direction l'un par rapport à l'autre sur le blanchet.
  13. Dispositif de nettoyage d'un blanchet selon l'une des revendications 1 à 11, caractérisé en ce que le déplacement des modules de nettoyage (2) est synchronisé de manière qu'au moins deux des modules de nettoyage (2) se déplacent l'un par rapport à l'autre sur le blanchet en se rapprochant ou en s'éloignant l'un de l'autre.
  14. Dispositif de nettoyage d'un blanchet selon l'une des revendications 1 à 11, caractérisé en ce que les modules de nettoyage (2) peuvent être déplacés individuellement.
  15. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que les modules de nettoyage (2) sont conçus pour que les tissus de nettoyage puissent être traités individuellement.
  16. Dispositif de nettoyage d'un blanchet selon l'une des revendications précédentes, caractérisé en ce que le dispositif de déplacement et de transport (6) est piloté électroniquement et/ou pneumatiquement.
  17. Procédé de nettoyage d'un blanchet qui est tendu sur un cylindre porte-blanchet d'une presse d'impression, caractérisé en ce qu'un dispositif selon les revendications 1 à 16 est utilisé.
EP09771271A 2008-10-26 2009-10-14 Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets Active EP2349722B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL09771271T PL2349722T3 (pl) 2008-10-26 2009-10-14 Urządzenie i sposób czyszczenia obciągów gumowych na cylindrach obciągów gumowych

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102008053118A DE102008053118A1 (de) 2008-10-26 2008-10-26 Vorrichtung und Verfahren zur Reinigung von Gummitüchern auf Gummituchzylindern
US16280709P 2009-03-24 2009-03-24
PCT/DE2009/001432 WO2010045922A1 (fr) 2008-10-26 2009-10-14 Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets

Publications (2)

Publication Number Publication Date
EP2349722A1 EP2349722A1 (fr) 2011-08-03
EP2349722B1 true EP2349722B1 (fr) 2012-09-19

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EP09771271A Active EP2349722B1 (fr) 2008-10-26 2009-10-14 Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets

Country Status (9)

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US (1) US20110197918A1 (fr)
EP (1) EP2349722B1 (fr)
JP (1) JP5591248B2 (fr)
CN (1) CN102202892B (fr)
DE (2) DE102008053118A1 (fr)
DK (1) DK2349722T3 (fr)
ES (1) ES2396164T3 (fr)
PL (1) PL2349722T3 (fr)
WO (1) WO2010045922A1 (fr)

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JP6831753B2 (ja) * 2017-05-31 2021-02-17 株式会社Ｓｃｒｅｅｎホールディングス クリーニング装置、クリーニング方法、印刷装置および印刷方法
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CN108839438B (zh) * 2018-09-11 2020-05-22 安徽虹源医药包装有限公司 一种用于印刷的墨辊的清洗装置
CN111873629B (zh) * 2020-08-19 2022-02-18 杭州佳园彩色印刷有限公司 一种印刷机用橡皮滚筒清洗装置
CN112495937A (zh) * 2020-10-26 2021-03-16 中冶赛迪工程技术股份有限公司 轧辊擦拭装置
CN112676274B (zh) * 2020-12-09 2022-09-13 北京世林环球海绵有限公司 一种利用挤压摩擦去杂的蜂窝海绵加工装置
CN113600397A (zh) * 2021-07-07 2021-11-05 河北蓝鸟家具股份有限公司 一种板式家具自动喷漆设备及方法
CN118343472B (zh) * 2024-06-14 2024-08-20 江苏华杰不锈钢制品有限公司 一种钢板表面处理装置

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DK2349722T3 (da) 2013-01-14
JP5591248B2 (ja) 2014-09-17
PL2349722T3 (pl) 2013-03-29
CN102202892B (zh) 2013-06-19
EP2349722A1 (fr) 2011-08-03
ES2396164T3 (es) 2013-02-19
DE102008053118A1 (de) 2010-04-29
JP2012506784A (ja) 2012-03-22
DE112009003242A5 (de) 2012-04-05
WO2010045922A1 (fr) 2010-04-29
US20110197918A1 (en) 2011-08-18
CN102202892A (zh) 2011-09-28

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