EP0461898B1 - Système de nettoyage avec brosse rotative - Google Patents

Système de nettoyage avec brosse rotative Download PDF

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Publication number
EP0461898B1
EP0461898B1 EP91305355A EP91305355A EP0461898B1 EP 0461898 B1 EP0461898 B1 EP 0461898B1 EP 91305355 A EP91305355 A EP 91305355A EP 91305355 A EP91305355 A EP 91305355A EP 0461898 B1 EP0461898 B1 EP 0461898B1
Authority
EP
European Patent Office
Prior art keywords
brush
component
spiral
brush means
cleaning
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.)
Expired - Lifetime
Application number
EP91305355A
Other languages
German (de)
English (en)
Other versions
EP0461898A1 (fr
Inventor
Charles R. C/O Baldwin Techn. Center Gasparrini
Carl C/O Baldwin Techn. Center Arnolds
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.)
Baldwin Technology Corp
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Baldwin Technology Corp
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Filing date
Publication date
Application filed by Baldwin Technology Corp filed Critical Baldwin Technology Corp
Publication of EP0461898A1 publication Critical patent/EP0461898A1/fr
Application granted granted Critical
Publication of EP0461898B1 publication Critical patent/EP0461898B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • B41P2235/23—Brushes

Definitions

  • This invention relates to a printing system with apparatus for cleaning printing press components.
  • Offset printing presses typically employ a blanket cylinder, that is to say, a rubber cylinder or a rubber-covered cylinder, for the purposes of receiving inked images from a printing plate.
  • the inked images are then offset onto paper passed between the blanket cylinders or impression cylinder and blanket cylinder.
  • Continuous printing is made possible by wrapping a print plate or a plurality of printing plates around the surface of a plate cylinder designed for rotation in contact with the blanket cylinder.
  • the problem of collection of debris such as ink, dust and lint on printing devices is not limited to offset printing. It occurs in press equipment in general. For example, it occurs on Anilox Rollers, Flexo Plate Cylinders and Plates, pipe rollers in newspaper presses, metal decorating press blanket cylinders, rollers and impression cylinders, Gravure press cylinders and rollers, Flexo press cylinders and rollers, and textile printing plates, blankets and rollers.
  • the problem of cleaning printing equipment is well known as indicated by prior efforts for printing equipment cleaner devices.
  • sheets are cut and stacked prior to printing.
  • the sheets are prevented from sticking by application of a dusty material such as corn starch.
  • a dusty material such as corn starch.
  • Use of corn starch laden sheets provides another source of debris.
  • Dry systems are known per se, and an example according to the precharactered part of claim 1 is described in our EP-A-0369565.
  • a movable component such as a printing blanket is cleaned by a rotating dry brush means, which is mounted for displacement between an operative position engaging the component and an inoperative position.
  • Means are provided for removing debris from the brush means, which comprises a vacuum source.
  • the invention in a first aspect is characterised in that the brush means is configured so that when in said operative position it is rotated by virtue of its engagement with said moving component and a member engages the brush means for impeding the rotation thereof such as to produce a relative sliding motion between the brush means and the moving component to produce said cleaning thereof, and for dislodging debris from the brush means.
  • the brush means comprises a rotary brush so configured that when in said operative position it is rotated by virtue of its engagement with said moving component in such a manner as to produce a rotary brushing action over the surface of said component to produce cleaning thereof.
  • the brush means may comprise a spiral brush.
  • the action of the spiral brush in combination with the movement of the component is such as to loosen dust and lint from the component.
  • the dust and lint may be then drawn into a vacuum system which may include a housing that surrounds the spiral brush.
  • the interference of bristles on the spiral brush with the component causes each bristle to flex radially, flicking the debris and lint off the component and to the vacuum source area.
  • the spiral in the brush causes lateral movement of bristles as the brush rotates, thus effecting additional cleaning.
  • the spiral brush may also be segmented to allow portions to be independently engaged and disengaged as needed.
  • the brush may be laterally adjustable so that it can align with printing components of varying dimensions.
  • the frequency of engagement and operation of the rotating brush of this invention may be adjustable by a press operator in response to various anticipated or observed parameters such as lint content of the paper stock and length of the press run.
  • the rotating brush cleaner shown generally at 20, includes at least one spiral brush 24, a housing 40 and an airflow means 41.
  • the rotating brush cleaner is mounted in operative association with a blanket cylinder 28, generally parallel to a longitudinal axis of the blanket cylinder.
  • Rotating brush cleaner mounting brackets 30 are attached to the press frame (not shown) generally outside either end of the blanket cylinder 28.
  • Pivoting arms 34 connect the rotating brush cleaner 20 with mounting brackets 30. These pivoting arms 34 serve to carry the rotating brush cleaner 20 and are pivotal about pin 36.
  • the rotating brush cleaner is generally pivotal between two operative positions. Pivoting of said arms 34 between these positions is affected by a plurality of actuators 38 attached to pivot arms 34.
  • the actuator employed is a pneumatic actuator, although manual, electrical or hydraulic actuators can be used if desired. Conventionally, a pneumatic actuator is used because compressed air is commonly available in the press rooms.
  • rotating brush cleaner 20 In the first operative position, rotating brush cleaner 20 is biased away from the blanket cylinder 28 to facilitate, for example, replacement of the spiral brushes and/or repair or maintenance of the machine.
  • the rotating brush cleaner 20 In the second operative position, the rotating brush cleaner 20 is held in contact with the surface of the blanket cylinder 28. In this second position, the rotating brush cleaner can affect cleaning and removal of the lint and debris from the blanket cylinder.
  • the vacuum portion of one embodiment of the rotating brush cleaner 20 is generally comprised of a substantially U-shaped housing 40 extending along the length of the blanket cylinder and a spiral brush 24.
  • the spiral brush 24 is mounted inside housing 40 which in turn is mounted to pivot arms 34.
  • the spiral brush 24 is driven by the blanket cylinder 28 and thus, rotates in the same direction as the blanket cylinder 28.
  • the amount of interference the spiral brush 24 and blanket cylinder 28 have in the engaged second position can be varied, as required, to improve the ability of the spiral brush 24 to loosen and remove lint and debris from the blanket cylinder.
  • the brush holder 62 is segmented to allow individual sections to be lifted so as not to contact the blanket cylinder during cleaning. Segmenting can be desirable since newspaper blanket cylinders are generally set up in quarters or pages; i.e., a web can be double width (full blanket) or single width (half blanket). If a single width is used, ink can get onto the cylinder that does not have web covering it. When that occurs, ink can foul a continuous brush in the non-web area. Segmenting the brushes, preferably into four sections, permits the brushes in the unused area to be lifted away.
  • the rotating brush cleaner may be segmented into as many sections as desired to provide for maximum versatility. Also, lifting the brushes may be accomplished by any effective means and can be done either manually, as shown, pneumatically, electrically or mechanically.
  • brush assembly can be made laterally adjustable along the width of the blanket cylinder. See FIG. 6.
  • brush holder 68 is slideably mounted within housing 70 along slots 72.
  • Locking means 74 serve to maintain the brushes in the desired lateral location. In this fashion the brushes may be aligned for the particular application to be performed.
  • spiral brushes 24 A variety of materials can be used for spiral brushes 24, provided that they do not damage the surface of the blanket cylinder 28. These materials include both natural and synthetic fibers.
  • the spiral brushes can be spiraled in different directions and can range in pitch from about 0.3 to 2.5 cm (1/8 inch to 1 inch), preferably 0.3 to 0.9 cm (1/8 inch to 3/8 inch).
  • the stiffness of the bristles can be varied by choosing different length and diameter bristles. In varying the spiral angle and bristle diameter of the spiral brushes, the speed of rotation of these brushes in the engaged second position is varied.
  • the spiral wound, round brushes can also vary in diameter; preferably the diameter is 5 to 7.5 cm (2 inches to 3 inches).
  • Housing 40 in the form of an inverted U-shaped channel, has a top surface 44 and parallel sides, 46 and 48 respectively. Housing 40 is mounted between pivot arms 34 in a downward position with the open end facing the blanket cylinder 28. Alternatively, U-shaped housing 40 may be mounted forward or backward relative to the centerline of the blanket cylinder 28 as desired.
  • a flicker blade 82 (Fig. 4) is mounted to the surface of housing 40 and is parallel to sides 46 and 48 of the housing.
  • the flicker blade 82 engages spiral brush 24 and can be adjusted, as in Figure 6A, to vary its interference with spiral brush 24. By varying the interference, the speed of rotation of the spiral brush can be varied. When the speed of the rotating spiral brush 24 is differentially slower than the speed of the rotating blanket cylinder, removal of lint and debris is more effectively accomplished.
  • Flexible wipers 50 are positioned at the ends of sides 46 and 48 of housing 40 and serve to contact the surface of blanket cylinder 28 to provide sealing surfaces in contact with the blanket cylinder when the rotating brush cleaner is engaged.
  • Loosened lint and debris 52 are removed from the interior of housing 40 by means of an airflow source, such as by vacuum or air pressure.
  • An airflow generating machine 41 (Fig. 1) is connected to port 58 in housing 40 by hose 56. Lint and debris 52 are conveyed through hose 56 by means of the airflow to be deposited in an appropriate disposal unit (not shown).
  • FIG. 7 there is shown another alternate embodiment for the rotating brush cleaner.
  • Spiral brushes are segmented into four segments in housing 40.
  • the two brushes 92 and 94 contained in the left side of housing 40 are be spiraled so that the rotation of the brushes drives the debris to port 90 on the left end of housing 40.
  • the two brushes 96 and 98 in the right side of housing 40 are spiraled in the opposite direction so that the same mechanical and windage effect drives the debris to a second port 91 on the right end of housing 40.
  • the rotating brushes remove the debris and drive it to the ports for better removal.
  • the spiraling on the brushes can be altered to direct flow of the debris in different directions; for example, to only one end of the housing.
  • FIG. 2-4 there is shown the general operation of the blanket cleaner in accordance with a blanket to blanket press embodiment of the present invention.
  • a web of imprinting material 60 passes between counterrotating blanket cylinders 28 and is imprinted on both front and rear sides of the web.
  • lint and debris 52 from the web 60 accumulate on the surface of the blanket cylinders 28 and, is allowed to remain thereon, tend to reduce the overall quality of the printed product.
  • rotating brush cleaners 20, generally located atop the blanket cylinders 28, are biased against the cylinders by biasing means in the form of actuators 38.
  • biasing means in the form of actuators 38.
  • the rotating brush cleaners 20 it is not necessary that the rotating brush cleaners 20 be continuously in contact with blanket cylinders 28 throughout the imprinting operation, however, where an excessive amount of lint and debris accumulate rather quickly, it may be desirable to leave them engaged during operation of the press.
  • the rotating brush cleaners 20 are periodically actuated against the blanket cylinders for a predetermined time to effect cleaning of the surface.
  • Periodic operation of the blanket cleaner of this invention may be controlled by conventional timing mechanisms related either to rotation of the presses or on command of the operator.
  • the operation of the actuator is controlled so that when blanket cleaning is desired, the actuator 38 is operated so that the cleaner is moved from the disengaged position ( Figure 3) to the engaged position ( Figure 2).
  • the spiral brushes 24 are brought into contact with the surface of blanket cylinder 28.
  • the spiral brushes 24 are utilized to remove debris and lint from the blanket cylinder 28, and after a predetermined number of rotations, the actuator 38 is operated to cause the rotating brush cleaner to disengage as shown in Figure 3.
  • the rotating brush cleaner can be employed in the printing industry to clean a wide variety of press and printing equipment in general.
  • Examples of such equipment include the following: blanket cylinders, impression cylinder, Anilox rollers, Flexo plate cylinders and plate, pipe rollers in newspaper presses, metal decorating press blanket cylinders, rollers, and impression cylinders, Gravure press cylinders or rollers, Flexo press cylinders or rollers, and textile printing plates, blankets or rollers, or gripper bar cleaners.
  • Possibilities for cleaning in the graphic arts field are vast and encompass the following areas: lithography (offset), Flexography, Gravure, Intaglio and letter press.

Landscapes

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

Claims (15)

  1. Système d'impression, comprenant un élément mobile (28), des moyens à brosse sèche tournante (24) pour nettoyer l'élément et le débarrasser de la saleté et des peluches, les moyens à brosse (24) étant montés pour un déplacement entre une position de fonctionnement mettant en prise l'élément (28) afin d'effectuer son nettoyage, et une position de repos, à l'écart de l'élément, et des moyens (40, 41) pour éliminer les débris des moyens à brosse, caractérisé en ce que les moyens à brosse (24) sont configurés de façon telle que lorsqu'ils se trouvent dans ladite position de fonctionnement, ils sont mis en rotation grâce à leur prise avec ledit élément mobile (28), et un élément (82) met en prise les moyens à brosse pour gêner leur rotation, de manière à générer un mouvement de glissement relatif entre les moyens à brosse (24) et l'élément mobile (28) afin d'effectuer son dit nettoyage, et pour déloger les débris des moyens à brosse.
  2. Système d'impression selon la revendication 1, dans lequel les moyens à brosse (24) comprennent une brosse hélicoïdale, et l'élément (82) comprend une lame oscillante pénétrant les poils de la brosse.
  3. Système selon la revendication 2, dans lequel ladite lame oscillante (82) est ajustable pour augmenter ou diminuer l'interférence de ladite lame oscillante avec ladite brosse hélicoïdale (24) afin de régler la vitesse de rotation de la brosse hélicoïdale.
  4. Système selon la revendication 3, dans lequel ladite brosse hélicoïdale possède un angle d'hélice et un diamètre de poil sélectionnés pour fixer la vitesse de rotation de ladite brosse hélicoïdale par rapport à la vitesse de mouvement de l'élément mobile, indépendamment du réglage de la vitesse produit par l'ajustement de la lame oscillante.
  5. Système selon l'une quelconque des revendications précédentes, dans lequel l'élément mobile (28) comprend un cylindre de blanchet.
  6. Système selon l'une quelconque des revendications précédentes, dans lequel les moyens à brosse sont montés dans un logement (40) et des moyens à actionneur (38) sont prévus pour déplacer le logement entre les positions de fonctionnement et de repos des moyens à brosse (24).
  7. Système selon la revendication 6, dans lequel les moyens d'élimination de débris comprennent des moyens de circulation d'air (41) couplés au logement (40) afin d'extraire les débris de celui-ci.
  8. Système selon la revendication 7, comprenant des moyens de fermeture étanche (50) pour produire un joint d'étanchéité entre les bords du logement (40) et l'élément mobile (28), lorsqu'il se trouve dans la position de fonctionnement.
  9. Système selon la revendication 6, 7 ou 8, dans lequel lesdits moyens à brosse (24) sont ajustables par rapport audit logement (40).
  10. Système selon la revendication 9, dans lequel lesdits moyens à brosse (24) sont segmentés en sections, lesquelles sections peuvent se déplacer séparément entre une première position à l'écart dudit élément mobile (28) et une seconde position adjacente audit élément mobile.
  11. Système selon la revendication 10, dans lequel les segments de brosse comprennent des brosses hélicoïdales (24) qui vont toutes en spirale dans le même sens.
  12. Système selon la revendication 10, dans lequel les segments de brosse comprennent au moins deux brosses hélicoïdales (24) qui vont en spirale dans des sens opposés.
  13. Système d'impression, comprenant un élément mobile (28), des moyens à brosse (24) pour nettoyer l'élément, les moyens à brosse (24) étant montés pour un déplacement entre une position de fonctionnement mettant en prise l'élément (28) afin d'effectuer son nettoyage et une position de repos à l'écart de l'élément, et des moyens (40, 41) pour éliminer des débris des moyens à brosse, caractérisé en ce que les moyens a brosse (24) comprennent une brosse tournante configurée de façon telle que lorsqu'elle se trouve dans ladite position de fonctionnement, elle est mise en rotation grâce à sa prise avec ledit élément mobile (28) de manière à produire une action de brossage tournant sur la surface dudit élément afin d'effectuer son nettoyage.
  14. Système d'impression selon la revendication 13, comprenant des moyens (82) pour gêner la rotation des moyens à brosse (24) de manière à produire un mouvement de glissement relatif entre les moyens à brosse (24) et l'élément mobile (28) afin d'effectuer son dit nettoyage.
  15. Système d'impression selon la revendication 14, dans lequel les moyens à brosse (24) comprennent une brosse hélicoïdale, et les moyens pour gêner (82) comprennent une lame oscillante pénétrant les poils de la brosse.
EP91305355A 1990-06-14 1991-06-13 Système de nettoyage avec brosse rotative Expired - Lifetime EP0461898B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US53812090A 1990-06-14 1990-06-14
US538120 1990-06-14

Publications (2)

Publication Number Publication Date
EP0461898A1 EP0461898A1 (fr) 1991-12-18
EP0461898B1 true EP0461898B1 (fr) 1996-04-10

Family

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Application Number Title Priority Date Filing Date
EP91305355A Expired - Lifetime EP0461898B1 (fr) 1990-06-14 1991-06-13 Système de nettoyage avec brosse rotative

Country Status (7)

Country Link
EP (1) EP0461898B1 (fr)
JP (1) JPH04232059A (fr)
CN (1) CN1058931A (fr)
DE (1) DE69118587T2 (fr)
DK (1) DK0461898T3 (fr)
FI (1) FI101139B (fr)
NO (1) NO305738B1 (fr)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19516068C2 (de) * 1995-05-04 2001-06-21 Heidelberger Druckmasch Ag Reinigungseinrichtung für Druckwerke von Rotationsdruckmaschinen
US5870954A (en) * 1998-01-22 1999-02-16 Presstek, Inc. Retractable cleaning system for lithographic printing plates
EP1215046A1 (fr) * 2000-12-12 2002-06-19 Fischer & Krecke Gmbh & Co. Machine à imprimer avec un dispositif de nettoyage du cliché
EP1338418B1 (fr) 2002-02-26 2005-09-07 Fischer & Krecke Gmbh & Co. Machine à imprimer avec un dispositif de nettoyage du cliché
FR2888527B1 (fr) * 2005-07-18 2009-01-16 Goss Int Montataire Sa Machine d'impression et procede correspondant
DE102006046071B3 (de) * 2006-09-27 2008-01-24 Technotrans Ag Reinigungsvorrichtung für eine Rotationsdruckmaschine
US7886458B2 (en) 2006-12-22 2011-02-15 G.A. Braun Inc. Lint collection apparatus and system for fabric dryers
JP5320733B2 (ja) * 2007-12-28 2013-10-23 株式会社Ｉｈｉ 冷却ロール清掃装置
DE102008053118A1 (de) * 2008-10-26 2010-04-29 Michael Kasper Vorrichtung und Verfahren zur Reinigung von Gummitüchern auf Gummituchzylindern
WO2010059992A2 (fr) 2008-11-20 2010-05-27 Ihi Corporation Cylindre brosseur pour cylindre de coulée
JP2013056540A (ja) * 2011-08-15 2013-03-28 Komori Corp 回転体洗浄装置
DE102014113190A1 (de) * 2014-09-12 2016-03-17 Manroland Web Systems Gmbh Reinigungsvorrichtung für eine Druckmaschine
DE102014113178A1 (de) * 2014-09-12 2016-03-17 Manroland Web Systems Gmbh Reinigungsvorrichtung für eine Druckmaschine
CN104886919B (zh) * 2015-06-08 2016-05-04 福建农林大学 一种用于培养槽清洗的m型电动刷子
KR102195938B1 (ko) * 2019-08-09 2020-12-29 주식회사 하늘코퍼레이션 의류 원단 인쇄장치 및 인쇄방법
CN116373455B (zh) * 2023-06-06 2023-08-11 东光运城制版有限公司 一种印刷版辊表面清洁装置及方法

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1216252A (fr) * 1958-01-21 1960-04-25 Dispositif d'humidification pour machines à imprimer
CH359719A (fr) * 1958-05-27 1962-01-31 Carl Allers Etablissement A S Machine à imprimer offset rotative
US3049997A (en) * 1960-03-04 1962-08-21 Elmer C Grembecki Blanket roller cleaning device
US3309993A (en) * 1965-01-26 1967-03-21 Oxy Dry Internat Ltd Printing cylinder cleaner
US4015307A (en) * 1969-08-25 1977-04-05 Oxy-Dry Sprayer Corporation Apparatus for cleaning rotating cylindrical surfaces
DE3120983A1 (de) * 1980-05-28 1982-04-29 Dai Nippon Insatsu K.K., Tokyo Vorrichtung zum waschen des gummituchzylinders einer rotations-offsetpresse
GB2170449B (en) * 1985-01-22 1990-03-14 Norman D Wright Printing press blanket cleaner
NO890516L (no) * 1988-02-08 1989-08-09 Baldwin Technology Corp Anordning ved et vakuum-rengjoeringssystem, spesielt ved en offset-trykningspresse.
US5086701A (en) * 1988-11-17 1992-02-11 Baldwin Technology Corp. Printing press blanket cleaner

Also Published As

Publication number Publication date
FI101139B (fi) 1998-04-30
NO912176L (no) 1991-12-16
FI912887A0 (fi) 1991-06-14
DK0461898T3 (da) 1996-05-06
NO912176D0 (no) 1991-06-06
DE69118587D1 (de) 1996-05-15
CN1058931A (zh) 1992-02-26
FI912887A (fi) 1991-12-15
EP0461898A1 (fr) 1991-12-18
JPH04232059A (ja) 1992-08-20
DE69118587T2 (de) 1996-11-21
NO305738B1 (no) 1999-07-19

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