EP0771268B1 - Dispositif de mouillage a pulverisation - Google Patents

Dispositif de mouillage a pulverisation Download PDF

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Publication number
EP0771268B1
EP0771268B1 EP95924178A EP95924178A EP0771268B1 EP 0771268 B1 EP0771268 B1 EP 0771268B1 EP 95924178 A EP95924178 A EP 95924178A EP 95924178 A EP95924178 A EP 95924178A EP 0771268 B1 EP0771268 B1 EP 0771268B1
Authority
EP
European Patent Office
Prior art keywords
dampening
nozzle
magazine
spray
spray nozzles
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
EP95924178A
Other languages
German (de)
English (en)
Other versions
EP0771268A1 (fr
Inventor
Georg Schneider
Martin Heinz Schoeps
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.)
Koenig and Bauer AG
Original Assignee
Koenig and Bauer Albert AG
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 Koenig and Bauer Albert AG filed Critical Koenig and Bauer Albert AG
Publication of EP0771268A1 publication Critical patent/EP0771268A1/fr
Application granted granted Critical
Publication of EP0771268B1 publication Critical patent/EP0771268B1/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
    • B41F7/00—Rotary lithographic machines
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/30—Damping devices using spraying elements

Definitions

  • the invention relates to a device for moistening of objects, especially a dampening roller an offset rotary printing machine according to the Preamble of claim 1.
  • the invention has for its object a Device for moistening a dampening roller To create rotary printing press by means of nozzles.
  • the advantages of the invention are in particular that immediately if the print image deteriorates a change of the spray nozzles can be made without that there is a loss of production.
  • the device according to the invention is also for spraying objects other than those mentioned in the description Suitable with dampening solution or paint and can be used anywhere be used where spray nozzles can clog.
  • a shaft 3 is rotatable stored and over a shaft end 4 with a Not shown drive, e.g. B. a lever for manual operation or with a known electric motor drive connected.
  • a Not shown drive e.g. B. a lever for manual operation or with a known electric motor drive connected.
  • On wave 3 are positively two or more carriers 6, 7, z. B. in the form of rectangular, perpendicular to shaft 3 and on the shaft 3 fixed plates arranged, which several z. B. four over an entire humidification width b a dampening solution roller 8 is in axially parallel Direction to dampening roller 8 extending, in total magazines designated with 9 and 11 for spray nozzles record (in Fig. 2, however, only two magazines 9, 11th shown).
  • Each magazine 9, 11 has at the ends of the Carrier 6, 7 fixed nozzle fastening elements or nozzle carrier 12, 13, 14, 15, in which in turn Spray nozzles 17, 18, 19, 20 are attached.
  • the spray nozzles 17 to 20 are arranged on the carriers 6, 7 that in each case the lower spray nozzle 18, 20 on the outer surface the dampening roller 8 is directed (work or Spray position D).
  • a strip-shaped flag 22 is attached, which with is connected to a housing-fixed sensor 23.
  • a dampening solution supply e.g. B. in the form of a flexible hose 24, 26, 27, 28th and one directional control valve 29, 31 each with one central dampening line 32, 33 (Fountain solution source) connected.
  • each nozzle holder 12 to 15 alternatively via others
  • Directional control valves 39, 40 each with a central line 41, 44 for cleaning liquid (also as Called dampening solution source) to connect in If necessary, to be able to clean the spray nozzles 17 to 20 (Fig. 2).
  • Another way of cleaning the spray nozzles 17 up to 20 consists of the d. H. those facing away from the dampening solution roller 8 Spray nozzles 17, 19 (Fig. 1; 2) each to one Nozzle cleaning device, not shown to make these spray nozzles 17, 19 with a Spray cleaning liquid and at the same time e.g. B. mechanically with a rotating bristle head clean.
  • the nozzle cleaning device mentioned can pivotable on a side frame fixed shaft and if necessary in the axis-parallel direction to the dampening solution roller 8 be movably arranged, the housing 37 compared to that shown in Fig. 1 enlarged can be executed. It is also possible to use the magazines 9, 11 for the spray nozzles to turn clockwise.
  • the sensor 23 signals in connection with one of the Flags 22; 21 a rotary movement of the magazines 9, 11 and causes via the directional valves 29, 31, which are electrically can be operated, switching on and off or switching of the dampening solution from the spray nozzles 18, 20 to the Spray nozzles 17, 19.
  • the magazines 9, 11 of the Spray dampers are surrounded by a housing 37, which is open in the direction of the dampening solution roller 8 and on the opposite side for operational purposes has an upwardly pivotable flap 38.
  • the Housing 37 has one at a low point Return 42 to return the not to the Fountain solution roller 8 applied dampening solution.
  • the dampening solution roller 8 is not shown Fountain roller and a non-shown Form cylinder in connection.
  • one The device according to the invention is in a side frame 1, 2 in the direction parallel to the dampening roller (longitudinal axis 80) reciprocating nozzle bar or one Nozzle carrier 43 for receiving side by side arranged nozzle carriers 46, 47, 48, 49 provided.
  • the Nozzle carriers 46 to 49 are spray nozzles 51, 52, 53, 54 assigned, which at least in pairs are arranged side by side. It can ever Moistening width b of the dampening roller 8 also four or eight pairs of spray nozzles (or any number of pairs of spray nozzles).
  • One each Pair of spray nozzles 51, 52; 53, 54 forms a magazine 56; 57. Each magazine is one Spray area assigned.
  • a spray area is one Area on the fountain solution roller 8, which are sprayed should.
  • the nozzle carriers 46 to 49 are each flexible Hoses 58, 59, 61, 62 for the supply of dampening solution assigned, with the supply analogous to the representation in 2 per magazine 56, 57 via directional valves 29, 31 can be done.
  • a back and forth movement of the Nozzle carrier 43 in the axial direction C can be by means of a known rack and pinion drive or double-acting cylinder-piston unit 63, which between the side frame 1 and one on the Nozzle carrier 43, cohesively located tab 64 is arranged to take place.
  • a device according to the invention exists in each case fixed on the side frame, e.g. B. on a not shown Traverse arranged magazine 68 from a vertical extending feed 69 with a feed shaft 70 for cleaned spray nozzles 71, 72, 73.
  • the vertical running feed chute 70 opens into one underneath in the horizontal direction Service shaft 74, in which is under the last Spray nozzle 73 a further cleaned spray nozzle 76 in Reserve position E is located (Fig. 6).
  • Positioning piston 86 (also as a positioning device 86)), which extends from the second end of the Service shaft 74 in the direction of the gate valve 82 moved along an axis 100, the defective spray nozzle 79th pushed into the chute 83 in the ejection position F, where it falls into a container 87 in free fall, which may be filled with a cleaning liquid 88 can be, in which case on the side wall of the Container 87 for intensive cleaning of the spray nozzles an ultrasound transmitter 90 may be attached.
  • Changing the spray nozzle 76 is done like this: instead of the defective spray nozzle 79, a in the rear long side 91 of the service shaft 74 arranged dampening solution supply or Fountain solution 92 using a presence a spray nozzle 79, 76 detecting sensor 93 in Connection with a solenoid valve, not shown switched off, so that when changing Dampening solution emerges from the fountain solution source 92.
  • the Drives 81, 84 can be made from known drive elements exist for a reciprocating movement. It can preferably several magazines 68 side by side over the entire humidification width b Fountain solution roller 8 may be arranged. So sprays in each case in the working position D. Spray nozzle 76 or 79 in the direction of the dampening solution roller 8. A housing was not shown. 9 is a Antechamber 75 of a working position D. Spray nozzle 79 representative of all other spray nozzles shown.
  • one device according to the invention is in itself dampening roller parallel to the direction side frame fixed dampening agent supply 94 in the form of a Tube provided with a rotation axis 85.
  • On the Tube 94 are over the entire humidification width b spaced apart magazines 96 for receiving Spray nozzles 97, 98 rotatable about an axis of rotation 85 arranged by a nozzle carrier 99, z. B. in the form a tubular sleeve 99 formed on its outer Scope of each of the spray nozzles 97, 98 diametrically arranged opposite one another.
  • the Spray nozzles 97, 98 at their end remote from the nozzle outlet a threaded nipple 101, 102, which positively in a threaded bore of the sleeve 99 intervenes.
  • the tube 94 has a spray direction the dampening roller 8 directional bore or Recess 103, which in the working position D with the bore of the threaded nipple 102 a passage for forms the dampening solution to be applied.
  • the Sleeve 99 is not shown on its circumference Provide teeth, which with a toothed belt 104 one fixed to the frame, e.g. B. from the machine station operable gear motor unit 106 rotatable connected is.
  • the sleeve 99 it is also possible to use the sleeve 99 to twist manually.
  • the sleeve-shaped nozzle carrier 99 is on the tubular fountain solution 94 through known sealants, e.g. B. O-rings not shown sealed against leaking dampening solution. Consequently are all on the fountain solution supply pipe 94 arranged magazines 96 centrally with dampening solution provided.
  • the pipe or the dampening solution supply is included a symbolically represented fountain solution source 115 connected.
  • one device according to the invention is again one in the direction parallel to the dampening roller extending side frame fixed dampening water supply 107 provided in the form of a tube.
  • On the pipe 107 are mutually over the entire humidification width b spaced magazines 108 for receiving spray nozzles 109, 111 arranged.
  • the spray nozzles 109, 111 are in Axis-parallel direction to the dampening solution supply line 107 arranged one behind the other and spaced from each other with a tubular, sleeve-like nozzle carrier 112 connected and consequently also to the nozzle carrier 112 screwed, as in the previous embodiment spelled out.
  • the nozzle holder 112 is on the Dampening supply line 107 in its axial direction (Axis of rotation 105) by means of a double-acting pneumatic cylinder-piston unit 113 back and forth moveable, d. H. slidably arranged so that either one of the two spray nozzles 109, 111 from one Reserve position E coming with a working position D on the dampening roller 8 bore or Recess 114 of the dampening solution supply line 107 in Connection is coming.
  • the recess 114 forms with a the spray nozzles 109 an outlet for the to be dispensed Fountain solution while the reserve spray nozzle 111 against the dampening agent supply pipe 107 is sealed.
  • the cylinder-piston unit is 113 on the one hand, fixed on the side frame and on the other hand by means of a tab 116 with the nozzle carrier 112 articulated.
  • a stroke length of Cylinder-piston unit 113 corresponds to the distance between the two Spray nozzles 109, 111 on the nozzle carrier 112.
  • Die Cylinder-piston unit 113 is e.g. B. from Machine control center can be operated from.
  • the device according to the invention is also for spraying of objects other than those in the preceding Description mentioned fountain solution roller 8 suitable. So can spray nozzles with the device mentioned anywhere be replaced where spray nozzles during the Can clog use, e.g. B. when spraying Fountain solution or ink. That goes without saying also when changing the spray pattern due to a Wear of the spray nozzle.
  • each spray nozzle Located between each spray nozzle and each nozzle holder one that is not designated in more detail except for FIG. 9 Antechamber.
  • each nozzle has a housing with which it is releasably connected.
  • flat jet nozzles to a catalog from Lechler GmbH + Co. KG Postfach 1709, D - 70707 Fellbach, "The whole world of Nozzle technology ", catalog 10.92, edition 921.
  • magazines 9; 11 (FIGS. 1 and 2) with one, as in connection with 11 described central dampening solution supply 115 to train for magazine 96.
  • the shaft 3 is there hollow and with a spray medium, e.g. B. aqueous Fountain solution supplying fountain solution source 32 or 33 connected.
  • a spray medium e.g. B. aqueous Fountain solution supplying fountain solution source 32 or 33 connected.
  • the hollow shaft is given 3 per magazine 9; 11 not one in the radial direction shown recess through which the spray medium can step through. Magazines 9; 11 are by means of Poor 6; 7 rotatably arranged on the hollow shaft 3.
  • the arms 6; 7 are each not shown Contain holes, which each in the Spray nozzles 18; 20 with the recess in the hollow shaft 3 for the purpose Feeding the spray medium, e.g. B. fountain solution connect.
  • the ones in reserve position E. Reserve spray nozzles, e.g. B. 97; 111 then have none Contact to the one in the hollow shaft 3 Recesses.
  • the recesses of the hollow shaft 3 are towards the ends near the shaft in the arms located holes with known means so sealed that the spray medium only by the in Working position D spray nozzles 18; 20th exit.
  • 97; 111 from the Reserve position E in working position D and vice versa can on an arc around the axis of rotation 30; 85; 95 or along a surface parallel to the dampening surface extending axis 80; 100; 105 slidably done.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)

Abstract

Dispositif de mouillage à pulvérisation dans lequel des buses de pulvérisation sont changées en cours de fonctionnement, sans interrompre la production, grâce au fait qu'il est prévu, dans chaque zone de pulvérisation, au moins un magasin capable de loger au moins deux buses de pulvérisation, ledit magasin étant disposé de manière à être amené d'une position de réserve à une position de travail.

Claims (20)

  1. Dispositif pour mouiller un rouleau d'agent mouillant (8) d'une machine à imprimer rotative avec un produit pulvérisé au moyen d'une pluralité de buses de pulvérisation (17 ; 19) disposées côte à côte dans un dispositif de mouillage par pulvérisation (14, 19, 27 ; 8) à chaque buse de pulvérisation (17 ; 19) étant associée une plage de pulvérisation et une position de travail (D), caractérisé en ce que, pour chaque plage de pulvérisation, il est prévu un magasin (9, 11 ; 51, 52 ; 48, 49 ; 68 ; 96 ; 108) pour recevoir au moins deux buses de pulvérisation (17, 18 ; 19, 20 ; 51, 52 ; 53, 54 ; 79, 76 ; 73, 72, 71 ; 97, 98 ; 109 ; 111), et en ce que chaque buse de pulvérisation (17, 18 ; 19, 20 ; 51, 52 ; 53, 54 ; 79, 76 ; 73, 72, 71 ; 97, 98 ; 109 ; 111) du magasin (9, 11 ; 51, 52 ; 48, 49 ; 68 ; 96 ; 108) est disposée pour pouvoir être amenée sélectivement d'une position de réserve (E), communiquant avec le produit pulvérisé, à la position de travail (D) et inversement.
  2. Dispositif selon la revendication 1, caractérisé en ce que chaque magasin (9, 11 ; 96) est disposé avec une possibilité de rotation autour d'un axe de rotation (30 ; 85 ; 95) s'étendant parallèlement à une surface à mouiller (8).
  3. Dispositif selon la revendication 1, caractérisé en ce que chaque magasin (56, 57 ; 108) est disposé avec une possibilité de translation de la position de réserve (E) vers la position de travail (D) suivant un axe (80 ; 100 ; 105) s'étendant parallèlement à une surface à mouiller.
  4. Dispositif selon les revendications 1 et 2, caractérisé en ce que chaque magasin (99) est disposé avec une possibilité de rotation sur un tube (94) solidaire du bâti latéral.
  5. Dispositif selon les revendications 1 et 3, caractérisé en ce que chaque magasin (112) est dispose avec une possibilité de translation sur un tube (107) solidaire du bâti latéral.
  6. Dispositif selon les revendications 1 et 2, caractérisé en ce que chaque magasin (9 ; 11) est disposé avec une possibilité de pivotement sur un arbre commun (3) solidaire du bâti latéral.
  7. Dispositif selon les revendications 1 et 2, caractérisé en ce que chaque magasin (9 ; 11) est disposé avec une possibilité de pivotement sur un arbre séparé (30) solidaire du bâti latéral.
  8. Dispositif selon les revendications 1 et 3, caractérisé en ce que chaque magasin (56 ; 57) est disposé sur un porte-buses à coulissement axial (43) solidarisé au bâti latéral.
  9. Dispositif selon la revendication 1, caractérisé en ce que chaque buse de pulvérisation (71 ; 72 ; 73 ; 76) d'un magasin (70) est disposée avec une possibilité de translation d'une position de réserve (E) vers une position de travail (D) au moyen d'un dispositif de positionnement (86).
  10. Dispositif selon les revendications 1 et 9, caractérisé en ce que la buse de pulvérisation (79) placée en position de travail (D) est disposée avec une possibilité de translation vers une position éjectée (F) au moyen du dispositif de positionnement (86).
  11. Dispositif selon les revendications 1, 9 et 10, caractérisé en ce que chaque buse de pulvérisation (71 ; 72 ; 73 ; 76 ; 79) comporte, sur son côté d'alimentation en agent mouillant, un boítier pourvu d'un moyen de guidage (89), en ce que le moyen de guidage (89) peut se déplacer, par complémentarité de formes et dans la direction axiale par rapport au rouleau d'agent mouillant (8), dans une gorge (91) du dispositif de positionnement (86), et en ce que la buse de pulvérisation (76) placée en position de travail (D) communique par complémentarité d< formes avec une source d'agent mouillant (92) à travers son boítier et le moyen de guidage (86).
  12. Dispositif selon les revendications 1 à 4, caractérisé en ce que le tube (94 : 107) communique avec une source d'agent mouillant (115), en ce que, lorsqu'elles sont en position de travail (D), les buses de pulvérisation (98 ; 109) de chaque magasin (99 ; 112) communiquent avec la source d'agent mouillant (115) par un évidement (103 ; 104) ménagé dans le tube (94 ; 107).
  13. Dispositif selon les revendications 6 à 8, caractérisé en ce que chaque buse de pulvérisation (17 à 20 ; 51 à 54) est reliée à travers sa pré-chambre à un tuyau souple séparé (24, 26 à 28 ; 58, 59, 61, 62) destiné à une source d'agent mouillant (32 ; 33 ; 41 ; 44 ; 58 ; 59 ; 61 ; 62).
  14. Dispositif selon les revendications 1 à 7 et 12, caractérisé en ce que les buses de pulvérisation (97, 98 ; 108, 109 ; 17 à 20) sont disposées avec la possibilité d'être amenées en coïncidence avec un évidement (103 ; 114) du moyen d'alimentation en agent mouillant (94 ; 107 ; 3) pouvant être relié à une source commune d'agent mouillant (115 ; 32 ; 33).
  15. Dispositif selon les revendications 1 à 14, caractérisé en ce que toutes les buses de pulvérisation (17, 18 ; 19, 20 ; 51, 52 ; 53, 54 ; 79, 76 ; 73, 72, 71 ; 97, 98 ; 109 ; 111) sont disposées avec la possibilité d'être reliées à une source commune d'agent mouillant.
  16. Dispositif selon les revendications 1 à 15, caractérisé en ce qu'il est prévu un dispositif pour nettoyer les buses de pulvérisation (17, 19 ; 18, 20).
  17. Dispositif selon les revendications 1 à 16, caractérisé en ce qu'il est prévu, comme dispositif de nettoyage de buses, au moins une tête de brossage mobile.
  18. Dispositif selon les revendications 1 à 17, caractérisé en ce que le dispositif de nettoyage prévu pour chaque buse de pulvérisation (17, 19 ; 18, 20) comporte une tête de brossage mobile.
  19. Dispositif selon les revendications 1 à 18, caractérisé en ce que la tête de brossage est montée avec une possibilité de rotation.
  20. Dispositif selon les revendications 1 à 19, caractérisé en ce que le dispositif de nettoyage de buses est disposé avec une possibilité de déplacement.
EP95924178A 1994-07-09 1995-07-06 Dispositif de mouillage a pulverisation Expired - Lifetime EP0771268B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE4424301 1994-07-09
DE4424301 1994-07-09
PCT/DE1995/000883 WO1996001740A1 (fr) 1994-07-09 1995-07-06 Dispositif de mouillage a pulverisation

Publications (2)

Publication Number Publication Date
EP0771268A1 EP0771268A1 (fr) 1997-05-07
EP0771268B1 true EP0771268B1 (fr) 1998-10-21

Family

ID=6522783

Family Applications (1)

Application Number Title Priority Date Filing Date
EP95924178A Expired - Lifetime EP0771268B1 (fr) 1994-07-09 1995-07-06 Dispositif de mouillage a pulverisation

Country Status (5)

Country Link
US (1) US5782180A (fr)
EP (1) EP0771268B1 (fr)
JP (1) JP3080172B2 (fr)
DE (1) DE59503999D1 (fr)
WO (1) WO1996001740A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2893449B1 (ja) * 1998-04-20 1999-05-24 株式会社東京機械製作所 スプレー式湿し水供給装置
US6764710B2 (en) 2001-07-18 2004-07-20 Scimed Life Systems, Inc. Light emitting markers for use with substrates
ITBO20060334A1 (it) * 2006-05-05 2007-11-06 Bieffebi Spa Macchina lavatrice per cliche' flessografici

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE589821C (de) * 1933-01-27 1933-12-18 Koenig & Bauer Schnellpressfab Farbzufuehrvorrichtung fuer Druckmaschinen
US4044674A (en) * 1974-07-24 1977-08-30 Smith R.P.M. Corporation Spray dampening system for high quality offset printing
US4469043A (en) * 1982-12-07 1984-09-04 The Kohler Coating Machinery Corporation Cleaning mechanism for coating control fluid nozzle
US4815375A (en) * 1985-07-22 1989-03-28 Ryco Graphic Manufacturing, Inc. Spray dampening system having alternate application control
US4719129A (en) * 1987-02-09 1988-01-12 Armco Inc. Multiple nozzle jet finishing
US5040457A (en) * 1989-10-10 1991-08-20 Rockwell International Corporation Printing press dampener
DE4301950A1 (de) * 1993-01-25 1994-07-28 Koenig & Bauer Ag Verfahren und Vorrichtung zum Verhindern eines Niederschlages eines unerwünschten aerosolartigen Mediums in einer Rotationsdruckmaschine

Also Published As

Publication number Publication date
WO1996001740A1 (fr) 1996-01-25
JP3080172B2 (ja) 2000-08-21
US5782180A (en) 1998-07-21
EP0771268A1 (fr) 1997-05-07
DE59503999D1 (de) 1998-11-26
JPH11502473A (ja) 1999-03-02

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