EP2349722A1 - Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets - Google Patents

Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets

Info

Publication number
EP2349722A1
EP2349722A1 EP09771271A EP09771271A EP2349722A1 EP 2349722 A1 EP2349722 A1 EP 2349722A1 EP 09771271 A EP09771271 A EP 09771271A EP 09771271 A EP09771271 A EP 09771271A EP 2349722 A1 EP2349722 A1 EP 2349722A1
Authority
EP
European Patent Office
Prior art keywords
cleaning
blanket
modules
movement
cloth
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
Application number
EP09771271A
Other languages
German (de)
English (en)
Other versions
EP2349722B1 (fr
Inventor
Michael Kasper
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.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to PL09771271T priority Critical patent/PL2349722T3/pl
Publication of EP2349722A1 publication Critical patent/EP2349722A1/fr
Application granted granted Critical
Publication of EP2349722B1 publication Critical patent/EP2349722B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • 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 image-leading and image-free areas of the printing plate lie in one plane, this method is also called a planographic printing process.
  • 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.
  • 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 is intended to avoid the further 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 placessstuchaufwickelrolle and at least one Reirikeitstuchvorststolle, 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, approximately parallel to the blanket blanket.
  • 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 can 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 Gutnmituchachse, so that advantageously several of these cleaning modules are connected together to completely clean the blanket over its entire axis length of Guinmituchzylitiders.
  • several of these 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 here are conventional and known mechanical connectors, such as simple screwing, plug or bayonet Verbi ⁇ disme. 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 can ensure the use of this high-quality cloth. 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 Vetitatisffenn 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 wiped not only in the direction of rotation of the axis of the blanket cylinder, but also paraEel 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 strip fatigue due to the "webs" on the cleaning cloths, since the "webs” can not constantly 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 Gunimituch surface are cleaned by more than one cleaning module, since the movement paths of the cleaning modules overlap can. Thus, in this case as well, a more effective cleaning work can be assumed.
  • the invention now ensures that 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 supply roll or rolled up onto the take-up reel. So 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 rubber blanket, the blanket is now cleaned very thoroughly in some places, since these areas are wiped off several times by different cleaning modules.
  • the soiling of the cleaning cloth and / or the soiling 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.
  • the meter is calibrated so that certain achieved selectable readings for that term are "cleaned” and then release the rotation of the gunimituch cylinder. "These embodiments of the invention now provide very thorough cleaning work. which, for example, could be done after each completed print job, since in that case the blanket has to be returned to its original condition to be ready for the next new job without annoying residue on the blanket.
  • 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 madesrnodule. 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 handssstnodule 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 thus also finds new points of attack to the color residues of the blanket to solve
  • This embodiment of the invention provides Although a more complex technical design of the movement and transport device. The result justifies this effort, however, completely.
  • 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.
  • a cleaning module such as the additional cleaning module to adjust so that the particularly heavily used and thus particularly dirty spots on the blanket in one revolution the blanket cylinder several times, but at least twice cleaned.
  • further cleaning modules can also be set arbitrarily. For example, several areas can be cleaned several times for very wide blankets.
  • the device for cleaning the blanket is set up so that the contact pressure of the cleaning modules on the GuiTtmituch 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” detergents (strong-acting 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.l schematically, a erf ⁇ ndungshieles device for cleaning a blanket.
  • Fig.2 schematically, blanket with cleaning modules and their range in the movement
  • FIG. 3 schematically, blanket with cleaning modules and the flexible connecting bridges.
  • Fig.l shows schematically an inventive device for cleaning a blanket.
  • the movement and transport device 6 is not shown in detail in Figure 1, wherein the lines to the Gurnmituchzylinder 1, to the interconnected cleaning modules 2, to the cleaning cloth supply roll 3 and to the cleaning cloth take-up reel 4, the connection to the transport and movement device, the Part she is too.
  • 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 wrongsstuchaufwickelrolle 4, where the soiled cloth wound wkd, 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 shows schematically 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 Druckmaschi ⁇ en without disturbing the ongoing operation of the printing press. Therefore, the cleaning module 2 stops approximately at the blanket edge.
  • Rhenish format 35 x 51 cm
  • 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.
  • Large formats are in a frame of 570 mm x 400 (Nordic format), 510 mx 350 mm (Rhenish format).
  • FIG 3 schematically shows the blanket with cleaning modules 2 and the flexible connecting bridges 7.
  • the cleaning modules can not only stand horizontally in one row, 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.

Landscapes

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

Abstract

L'invention concerne un dispositif destiné à nettoyer le blanchet qui est tendu sur un cylindre blanchet (1) d'une machine à imprimer à l'aide d'un dispositif de nettoyage. L'invention est caractérisée en ce que le dispositif de nettoyage comprend au moins un dispositif de déplacement et de transport (6), au moins deux modules de nettoyage (2) reliés l'un à l'autre, au moins un rouleau enrouleur d'étoffe de nettoyage (4) et au moins un rouleau débiteur d'étoffe de nettoyage (3), le dispositif de déplacement et de transport (6) étant conçu de telle manière que celui-ci puisse mouvoir les modules de nettoyage (2) reliés ensemble parallèlement à l'axe du cylindre blanchet (1) et le dispositif de déplacement et de transport (6) étant en outre conçu de telle manière que celui-ci transporte une étoffe de nettoyage préparée sur le rouleau débiteur d'étoffe de nettoyage (3) par l'intermédiaire du module de nettoyage (2) sur le rouleau enrouleur d'étoffe de nettoyage (4).
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 true EP2349722A1 (fr) 2011-08-03
EP2349722B1 EP2349722B1 (fr) 2012-09-19

Family

ID=42055060

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09771271A Active EP2349722B1 (fr) 2008-10-26 2009-10-14 Dispositif et procédé de nettoyage de blanchets sur des cylindres blanchets

Country Status (9)

Country Link
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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CN103786435A (zh) * 2011-12-31 2014-05-14 四川虹欧显示器件有限公司 漏印版清洁装置及印刷机
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US9421757B2 (en) * 2014-10-23 2016-08-23 Ronald G. Egan Method and apparatus for cleaning printing presses for three dimensional objects
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
JP7248269B2 (ja) * 2018-07-12 2023-03-29 ニッカ株式会社 ブランケット胴洗浄装置およびブランケット胴洗浄方法
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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Title
See references of WO2010045922A1 *

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DK2349722T3 (da) 2013-01-14
JP5591248B2 (ja) 2014-09-17
PL2349722T3 (pl) 2013-03-29
CN102202892B (zh) 2013-06-19
ES2396164T3 (es) 2013-02-19
EP2349722B1 (fr) 2012-09-19
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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