WO1991004155A1 - Ame de rouleau imprimeur - Google Patents

Ame de rouleau imprimeur Download PDF

Info

Publication number
WO1991004155A1
WO1991004155A1 PCT/SE1990/000568 SE9000568W WO9104155A1 WO 1991004155 A1 WO1991004155 A1 WO 1991004155A1 SE 9000568 W SE9000568 W SE 9000568W WO 9104155 A1 WO9104155 A1 WO 9104155A1
Authority
WO
WIPO (PCT)
Prior art keywords
core
sleeve
passages
compressed air
valve
Prior art date
Application number
PCT/SE1990/000568
Other languages
English (en)
Inventor
Rolf S. Persson
Per-Olof Janson
Original Assignee
Miller Graphics Aktiebolag
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 Miller Graphics Aktiebolag filed Critical Miller Graphics Aktiebolag
Priority to EP90913908A priority Critical patent/EP0491802B1/fr
Priority to DE69016034T priority patent/DE69016034T2/de
Publication of WO1991004155A1 publication Critical patent/WO1991004155A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F27/00—Devices for attaching printing elements or formes to supports
    • B41F27/10—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders
    • B41F27/105—Devices for attaching printing elements or formes to supports for attaching non-deformable curved printing formes to forme cylinders for attaching cylindrical printing formes

Definitions

  • a printing roll core for a printing roll comprising such a core and one or more sleeves which are provided to be mounted on the core from one end thereof and to be displaced along the core to and from working positions on the core by causing compressed air to flow out through passages terminating in outlets distributed along the outer surface of the core, so that the sleeve from a state in which the sleeve tightly fits the core, when compressed air is not caused to flow through said outlets, may be expanded by causing air to flow through said outlets, so that the sleeve may be displaced along the core.
  • Printing roll cores of the above mentioned type are known since long and are extensively used within the graphic industry. For example may be mentioned those printing roll core designs which are described in US-A-3 146 709 and G-A-l 581 232.
  • a drawback of these known printing roll cores is that compressed air is flowing out through all the outlets in the surface of the core when the sleeve is being mounted on the core or is being removed from it.
  • this known system shall function it has therefore been necessary to concentrate the majority of the outlets to a region of the surface of the core adjacent to that end of the core where the mounting operation is initiated, while only one single outlet is located at the central part of the surface of the core.
  • the purpose of the invention is to provide an improved printing roll core, in which the above mentioned drawbacks and limitations have been eliminated in a simple way.
  • Fig. 1 is a longitudinal sectional view through a printing roll core according to the invention
  • Fig. 1A shows an encircled detail of Fig. 1 at a larger scale
  • Fig. 2 shows the same printing roll core as in Fig. 1 with a sleeve partly mounted on the core;
  • Fig. 3 shows a printing roll core with a plurality of sleeves mounted side by side on the core.
  • a printing roll core has been generally designated 1. It consists according to the embodiment of a cylindrical shell 2 (also a slightly tapered core may be conceived) and two end portions 3 and 4 provided with axle bars 5 and 6.
  • the cylindrical outer surface of the shell 2 has been designated 7.
  • Compressed air can be supplied from a source of compressed air through a compressed air hose 9 via a connection nozzle 8 in axle bar 5.
  • hose 9 there may optionally be provided a valve for opening and closing the connection.
  • the supply of compressed air may be effected either by opening the valve 10 or by connecting the mouth piece 11 of hose 9 to the connection nozzle 8 of the axle bar 5. When closing the supply the operation is reverse.
  • a fill body 12 of rigid cellular plastic material which reduces the air volume in the interior of the core to the thin gaps between on one side the shell 2 and the end portions 3 and 4, and on the other side the said fill body 12.
  • valve 14 is a ball valve of well known type, as is shown in Fig. 1A.
  • valve seat 15 having an outer annular border line which essentially coincides with the outer surface 7 of the shell.
  • a steel ball 17 is pressed towards the seat 15 by means of a spring 18. In the closing position of the valve the ball 17 extends beyond the outmost part of the valve seat 15 and also beyond the outer surface of the shell 2 by an outer portion 19 which has the shape of a spherical calotte.
  • the sleeve - or the sleeves - which shall be mounted on the printing roll core 1 may be designed in a manner per se and consist of an inner shell 20 of reinforced plastics and an outer tube 21 of rubber with an exterior cliche.
  • the sleeve has been generally designated 22, Fig. 2.
  • the compressed air hose 9 is connected to the nozzle 8, and the valve 10 is opened so that the interior of the core is subjected to an overpressure. No air, however, can flow through the passages 13a-13h as the valves 14 are closed.
  • the sleeve 22 is mounted, starting in the right hand portion of the core 2, which portion in this case is the initial mounting end.
  • the end portion 23 therefore suitably is somewhat tapered in order to facilitate the initial mechanical mounting operation.
  • the sleeve 22 will with its interior side press the balls 17 of the valves 14 into the passages 13a under compression of spring 18.
  • the valves are opened in a manner known per se and air flows out through the outlets of these first passages 13a such that the sleeve 22 will be expanded to a sufficient degree in order that it readily may be further moved over the core 2.
  • the other valves 14, i.e. the valves in passages 13b-13h are still closed but they will successively be opened as they are covered by the sleeve 22 during the continued movement of the sleeve along the core 2.
  • Fig. 3 illustrates the case when a plurality of sleeves 22a, 22b, 22c, and 22d are mounted on a core 1. This may be made without problems according to the invention as the shell 2 of the core 1 may be pro ⁇ vided with a plurality of valve provided passages 13a-13h. These has been indicated in Fig. 1 only by an X. It is also possible according to the invention to provide only one or a couple of comparatively short sleeves on a comparatively long core 1, so that the sleeves only will cover a minor portion of the core, a possibility which sometimes is worthwhile.

Abstract

Ame de rouleau imprimeur destinée à un rouleau imprimeur, comprenant la dite âme (1) ainsi qu'un manchon (22) prévu pour être monté sur l'âme à partir d'une de ses extrémités, et pour être déplacé le long de la dite âme vers des positions de travail et inversement sur cette dernière, à l'aide d'air comprimé dont on provoque l'écoulement par les passages (13a à 13h) aboutissant dans des sorties réparties le long de la surface extérieure de l'âme, de sorte que le manchon, à partir d'un état dans lequel ce dernier s'adapte étroitement sur l'âme, lorsque l'on ne fait pas s'écouler d'air comprimé dans les dites sorties, peut être dilaté par de l'air que l'on fait s'écouler par les dites sorties, de sorte que le manchon peut être déplacé le long de l'âme. On peut relier les passages à une source d'air comprimé, laquelle est de préférence commune auxdits passages. Dans chacun desdits passages se trouve une vanne (14), et chaque vanne comprend un élément d'ouverture (17, 19) dont la partie extérieure (19) s'étend au-delà de la surface extérieure (7) de la partie extérieure (2) de l'âme, lorsque la vanne est fermée et que la dite partie extérieure se trouve dans sa position extérieure, la dite partie extérieure pouvant être déplacée par une action mécanique extérieure de la dite position extérieure à une position interne, à l'intérieur de la surface extérieure de la dite âme ou coïncidente avec celle-ci, dans laquelle la vanne est ouverte de sorte que l'air comprimé peut s'écouler par l'orifice situé dans la surface de l'âme, la dite action mécanique étant exécutée par le manchon à mesure que ce dernier est monté sur l'âme, les vannes étant successivement ouvertes à mesure que le manchon est amené en contact avec leurs parties extérieures, et étant à nouveau fermées lorsque ledit manchon a dépassé l'orifice en question.
PCT/SE1990/000568 1989-09-13 1990-09-06 Ame de rouleau imprimeur WO1991004155A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP90913908A EP0491802B1 (fr) 1989-09-13 1990-09-06 Ame de rouleau imprimeur
DE69016034T DE69016034T2 (de) 1989-09-13 1990-09-06 Kern für druckrolle.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE8903004A SE466190B (sv) 1989-09-13 1989-09-13 Tryckvalskaerna
SE8903004-3 1989-09-13

Publications (1)

Publication Number Publication Date
WO1991004155A1 true WO1991004155A1 (fr) 1991-04-04

Family

ID=20376863

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/SE1990/000568 WO1991004155A1 (fr) 1989-09-13 1990-09-06 Ame de rouleau imprimeur

Country Status (6)

Country Link
EP (1) EP0491802B1 (fr)
AT (1) ATE116903T1 (fr)
AU (1) AU6410990A (fr)
DE (1) DE69016034T2 (fr)
SE (1) SE466190B (fr)
WO (1) WO1991004155A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510744A1 (fr) * 1991-04-23 1992-10-28 Miller Graphics Aktiebolag Dispositif pour une unité d'impression
GB2349897A (en) * 1999-05-12 2000-11-15 Arjo Wiggins Fine Papers Ltd Means for removing texturing press roller sleeve
EP1225046A1 (fr) * 2001-01-22 2002-07-24 Heidelberger Druckmaschinen Aktiengesellschaft Cylindre d'impression destiné à recevoir un manchon d'impression
CN114007760A (zh) * 2019-05-15 2022-02-01 汉内卡德公司 辊芯和具有可互换套筒的涂布辊

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10306196B3 (de) * 2003-02-13 2004-10-07 Windmöller & Hölscher Kg Farbübertragungswalze
DE102008022635A1 (de) * 2008-05-08 2009-11-12 Manroland Ag Rollendruckmaschine
DE102009023170B4 (de) * 2009-05-29 2013-09-05 Wetzel Gmbh Sleeve sowie Verfahren zum Montieren eines solchen auf einer Trägerwalze

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE403454B (sv) * 1977-05-26 1978-08-21 Tetra Pak Int Anordning for att medelst vakuum montera klicheer pa en tryckvals
SE436717B (sv) * 1980-11-04 1985-01-21 Olov Orjan Johnsson Vals med utbytbart ytterskikt

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE403454B (sv) * 1977-05-26 1978-08-21 Tetra Pak Int Anordning for att medelst vakuum montera klicheer pa en tryckvals
SE436717B (sv) * 1980-11-04 1985-01-21 Olov Orjan Johnsson Vals med utbytbart ytterskikt

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510744A1 (fr) * 1991-04-23 1992-10-28 Miller Graphics Aktiebolag Dispositif pour une unité d'impression
GB2349897A (en) * 1999-05-12 2000-11-15 Arjo Wiggins Fine Papers Ltd Means for removing texturing press roller sleeve
WO2000070145A1 (fr) * 1999-05-12 2000-11-23 Arjo Wiggins Fine Papers Limited Rouleau a texturer de machine a papier
US6599396B1 (en) 1999-05-12 2003-07-29 Arjo Wiggins Fine Papers Limited Texturing roller in a paper machine
EP1225046A1 (fr) * 2001-01-22 2002-07-24 Heidelberger Druckmaschinen Aktiengesellschaft Cylindre d'impression destiné à recevoir un manchon d'impression
US7107907B2 (en) 2001-01-22 2006-09-19 Goss International Americas, Inc. Flow-restricted printing cylinder for a removable printing sleeve
CN114007760A (zh) * 2019-05-15 2022-02-01 汉内卡德公司 辊芯和具有可互换套筒的涂布辊
CN114007760B (zh) * 2019-05-15 2023-10-03 汉内卡德公司 辊芯和具有可互换套筒的涂布辊

Also Published As

Publication number Publication date
DE69016034D1 (de) 1995-02-23
EP0491802B1 (fr) 1995-01-11
AU6410990A (en) 1991-04-18
SE466190B (sv) 1992-01-13
DE69016034T2 (de) 1995-06-01
ATE116903T1 (de) 1995-01-15
SE8903004D0 (sv) 1989-09-13
SE8903004L (sv) 1991-03-14
EP0491802A1 (fr) 1992-07-01

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