US3885496A - Device for applying ink to the inking roller of an offset printing press - Google Patents

Device for applying ink to the inking roller of an offset printing press Download PDF

Info

Publication number
US3885496A
US3885496A US390520A US39052073A US3885496A US 3885496 A US3885496 A US 3885496A US 390520 A US390520 A US 390520A US 39052073 A US39052073 A US 39052073A US 3885496 A US3885496 A US 3885496A
Authority
US
United States
Prior art keywords
ink
disc
shield
lip
blades
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
US390520A
Other languages
English (en)
Inventor
Peter Breitweg
Karl-Heinz Franz
Peter Mayer
Klaus Wolf
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.)
Roland Offsetmaschinenfabrik Faber and Schleicher AG
Original Assignee
Roland Offsetmaschinenfabrik Faber and Schleicher 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
Priority claimed from DE19722241281 external-priority patent/DE2241281C3/de
Application filed by Roland Offsetmaschinenfabrik Faber and Schleicher AG filed Critical Roland Offsetmaschinenfabrik Faber and Schleicher AG
Application granted granted Critical
Publication of US3885496A publication Critical patent/US3885496A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/28—Spray apparatus

Definitions

  • ABSTRACT An inking device for supplying a film of ink to a print ing cylinder in a printing press which includes a housing having a plurality of cup-like discs journaled side by side therein. Structure is provided for continuously feeding ink to the discs and for rotating the discs at high speed so that the ink is slung radially outward by centrifugal force in a finely dlivided stream through a registering aperture. To control the rate of flow a shutter is movably interposed in the stream.
  • a sump is provided at the bottom of the housing with feeding apparatus including a pump and ink feed line for pumping ink to each of the discs. Alternatively, a feed screw is provided extending from the sump to each of the discs for feeding ink directly to the center of the disc.
  • a scraper apparatus is provided at the periphery of the disc for intercepting the major portion of the ink, thereby to control the amount of ink which is actively discharged in the stream and to maintain the remainder in liquid form. Finally, a heater is used to heat the walls within the device upon which the ink tends to collect so that the viscosity of the ink is reduced for prompt return to the sump.
  • an object of the present invention to provide an ink feed device which is capable of feeding ink in the form of a thin film reliably and at a precisely controlled rate in successive column positions. It is a related object to provide an ink feed device which is capable of consistent operation over long periods of time, which completely avoids the possibility of clogging or other irregularity by reason of contaminants in the ink, and which is capable of successful operation with inks having a wide range of viscosity including ink of thick, pastey consistency.
  • an inking device in which ink is converted to a finely divided form at a high rate but in which only a small portion of the ink'is actually discharged in a finely divided stream, the remainder of the ink being constantly recirculated, in free-flowing liquid form, to a sump.
  • FIG. 1 is a vertical section taken through an inking device constructed in accordance with the present invention and looking along the line l-l in FIG. 2.
  • FIG. 2 is a longitudinal section taken along the vertical section line 2-2 in FIG. 1.
  • FIG. 3 is a view similar to FIG. 1 but showing use of scraper or doctor blades.
  • FIG. 4 is a fragmentary horizontal section taken along the line 44 in FIG. 3..
  • FIG. 5 shows a modified form of the device and is a vertical section looking along the line 5-5 in FIG. 6.
  • FIG. 6 is a fragmentary horizontal section looking along the line 6-6 in FIG. 5.
  • FIGS. 1 and 2 there is shown an inking system including an inking device 10 constructed in accordance with the present invention cooperating with an ink roller, or form roller, 11 which is in rolling engagement with the plate on a plate cylinder 12.
  • the plate may, for example, be of the lithographic type, and in such event it will be understood that means (not shown) will be provided for conveying to the plate a thin film of water in addi tion to the ink.
  • the inking device 10 includes a housing 15 which is spaced parallel with the ink roller 11, extending the length of the latter.
  • the housing has a bottom plate 16 which forms a sump as well as a top plate 17 which serves both as a closure and as a mounting plate.
  • a row of apertures 18 of limited size In the side wall of the housing are a row of apertures 18 of limited size through which ink is projected upon the surface of the ink roller 11.
  • a plurality of cup-like discs are journaled side by side in the housing, with ink being continuously deposited on the discs and with the discs being rotated at high speed so that the deposited ink is slung radially outwardly by centrifugal force through registering apertures 18 to form a thin film of ink upon the receptive surface of the ink roller 11.
  • the discs and their associated parts form separate, identical subassemblies.
  • One such subassembly, 20, will be discussed in detail and it will be understood that similar parts, to which the same reference numerals have been applied, exist in the adjacent subassemblies and perform the same function therein.
  • a disc 21 which is of shallow cup shape having a bottom wall 22, a conical side wall 23 and an annular lip 24.
  • the disc is mounted upon an axially extending shaft 25 which is a journaled. in a bearing 26.
  • a pulley 27 engaged by a belt 28 which is driven by a motor 29.
  • a feeding means for the purpose of feeding ink 30 continuously from the sump 16 to the disc, a feeding means is provided which includes a pump 31 which discharges into a feed line 32, which feed line terminates at 33 at a point elevated slightly above the disc.
  • the pump is preferably of the positive displacement type, for example, a gear pump.
  • the pump is coupled to a drive motor 32.
  • a suitable control 33 is provided for setting the driving speed and thereby directly controlling the output rate.
  • the disc 21 is rotated at a speed which is sufficient to develop a high centrifugal force so that the ink which is deposited upon the disc is slung from the edge of the disc as a stream of finely divided particles.
  • a shutter is adjustably interposed between the disc and the aperture 18 for controlling the rate of feed of ink through the aperture.
  • the shutter is in the form of a cylindrical shield 40 having an opening 41 which generally registers with the aperture 18 but having provision for bodily movement so as to vary the unobstructed area and hence vary the rate of deposition.
  • the shield 40 has an annular flange 42 and is mounted for rotational adjustment, permitting the opening 41 to be moved off-center with respect to the aperture 18 for control of the unobstructed area.
  • the shutter, or shield, 40 is rotationally adjustable it may be provided with an annular clearance slot 43 to clear the incoming ink feed line 32.
  • the shield may be vertically adjustable to offset the opening 41 from aperture 18, in which case a vertically extending clearance slot is required.
  • a series of stirring devices generally indicated at 45 may be used. These may be of the rotary type powered by any suitable driving means. Makeup may be supplied to the pump by any desired means.
  • ink from the sump, metered by the pump 31 is fed through line 32 and discharged upon the disc 21.
  • the disc 21 is rotated at high speed, a speed which, using a disc of 2-inch diameter, may be on the order of rpm., a speed which is, in any event, sufficiently high so that the centrifugal force acting upon the ink tends to sling it outwardly from the lip 24 in finely divided form. That portion of the ink which is projected through the opening is deposited upon the surface of ink roller 11 in the form of a thin and uniform film.
  • the shutter, or shield, 40 is rotated about its axis to offset the opening 41 from aperture 18, that is, to reduce the unobstructed area. Most of the ink slung outwardly from the disc strikes the wall of the shield and, by action of gravity, returns promptly to the sump for recirculation.
  • control assembly 33 may be a settable rheostat.
  • speed control which is capable of maintaining a preset but adjustable speed and having speed calibration to cover a wide range of output.
  • the ink is discharged from the disc by centrifugal force.
  • some of the ink may be mechanically re moved from the-disc by using a system of scrapers or doctor blades.
  • Such doctor blades shown in FIGS. 3 and 4, are cantilever-mounted in angled position, with the free, or inner, ends in wiping engagement with the lip of the disc.
  • the blade assembly indicated generally at 50, may include a plurality of convergently arranged blades 51-55 inclusive.
  • the ink which would normally reach the periphery of the disc in this region for centrifugal expulsion is, instead, stripped off for recirculation, and only that portion of the ink which is successful in reaching the lip of the disc within the free angular space 57 is ejected by centrifugal force in the form of a finely divided spray 56.
  • This not only limits the total amount of ink which is ejected but inhibits accumulation at the lip and prevents the ink from being ejected in the form of large droplets.
  • the doctor blade 51 may be mounted for swinging movement about the axis of the disc as a convenient way of varying the arc of centrifugal ejection and hence the rate of flow of ink through the aperture.
  • Elements of the version shown in FIGS. 3 and 4 which are provided in common with the version shown in FIGS. 1 and 2 carry similar reference numerals with addition of subscript a.
  • cylindrical shield 40a is provided having an opening 410, with the blades 51-55, as shown in FIG. 4, penetrating the wall of the shield.
  • the cylindrical shield 40a which surrounds the disc, is artifically heated by means of an encircling heating element H having an outer shell 58 which is, as shown in FIG. 4, also penetrated by the blades.
  • This keeps the shield 40a at such a high temperature as to substantially reduce the viscosity of the ink which strikes the shield so that the impingeing ink flows more promptly to the sump, a typical stream of ink being indicated at 59 in FIG. 3.
  • the shield structure is bodily rotatable on the flange 42a, similarly to the previous embodiment, with the rotation thereby serving to rotate the blades which are mounted in the shield.
  • ink may be conveyed from the sump to the center of each disc by means ofa vertically oriented feed screw, the lower end of which extends into the sump and the upper end of which extends through a clearance opening at the center of the disc, the feed screw being separately driven at a controlled speed in order to vary the feed rate.
  • a vertically oriented feed screw the lower end of which extends into the sump and the upper end of which extends through a clearance opening at the center of the disc, the feed screw being separately driven at a controlled speed in order to vary the feed rate.
  • the bearing bracket is, in turn, supported upon an angle 15b which is employed in lieu of the long housing 15 in FIG. 1.
  • a shield 40b Surrounding the disc is a shield 40b having an opening 41b which is aligned with the lip of the disc 21b and the adjacent surface of the ink roller 11b.
  • a vertically oriented feed screw 60 having a lower end 61 which extends down into the sump and an upper, flaring end 62 which extends through the center of the cup.
  • a nozzle plate 63 is provided overlying the sump and which has a nozzle 64 which is telescoped over the screw and which defines an annular axially extending pumping space.
  • the screw For rotating the feed screw at a settable speed, the screw has a shaft 65 which extends upwardly within the hollow shaft b and which terminates in a pulley 66 driven by a belt 67, the belt being powered by a motor 68 having any desired speed setting means 69.
  • the rate of ink feed depends upon the motor speed and the control means 69 is preferably calibrated directly in terms of feed rate.
  • the shield is provided with an adjustable shutter 70 which adjustably covers the opening 41b to determine the unobstructed area of the latter.
  • Either the shutter 70 or the control device 69 for motor 68, or both of them together, may be used to control the rate of discharge of the finely divided stream and hence the thickness of the film formed upon the ink cylinder 11b.
  • the discs and their asso ciated apertures may be used to control the feed rate of ink in successive positions along the length of the ink roller and plate cylinder.
  • the discs need not be provided column by column, and each disc may, indeed, because of the dispersal of ink illustrated in FIG. 4, service more than one column position.
  • the latter term is intended to refer to any convenient cycle of length along the ink roller and plate cylinder.
  • the term disc is used to cover any circular inkdispersing element rotated at high speed.
  • the angular dispersal of the projected ink is sufficiently great so that the uniformity and continuity of the resulting film is not substantially affected by reasonable degrees of closure, or offset, of the ad justable opening 41 with respect to the aperture 18.
  • the aperture 18 instead of being a single opening may be formed as a spaced series of openings and the opening 41 in the shield may be similarly divided into openings of registering size and position. In such event the effect of closure will be more evenly distributed along the longitudinal dimension of the aperture 18 and a smaller amount of movement of the shield will suffice to adjust from the fully open to fully closed condition.
  • the fine degree of output control achievable in the present construction is due, in part, to the fact that most of the ink from the disc is idly intercepted and returned to the sump, with only a small fraction being projected upon the roller surface.
  • the present device is inherently capable of forming a film of ink directly, easily controllable over a wide range of film thickness, including thin films difficult to achieve by ordinary means. Since the film is formed by a stream of finely divided ink particles by centrifugal means there is no clogging tendency. Thus the device once adjusted, and with the discs rotating at a constant rate, can be expected to provide a uniform and consistent rate of discharge. and hence consistent film thickness, over long press runs without care or attention.
  • the term means for variably acting upon the ink as used herein is a general term covering means for varying the effective ink flow either as liquid ink or when the ink is in its finely divided state.
  • the particles in the stream are sufficiently widely dispersed so that an even film is formed by direct action of the particles without auxiliary smoothing.
  • the film may be directly deposited upon a form roller which rolls in direct engagement with a plate cylinder, as in the case of the roller 11, without necessity for using a series of intervening ink rollers, or cylinders, for bringing about a smooth and even distribution of the film.
  • the present device possesses a high degree of economy and compactness. Nonetheless, if desired, auxiliary rollers or cylinders may be interposed between the ink roller 11 and the plate cylinder 12 without departing from the invention.
  • the ink may be drained from the sump and the sump may be charged with a solvent.
  • the solvent and entrained ink may be recirculated and then cleanly drained in readiness for a new charge of ink.
  • housing 15 will be understood to extend the fully length of the ink roller 11.
  • housing is not necessarily limited to a unitary structure and includes the concept of using a series of individual enclosures for the respective discs, as in the versions illustrated in FIGS. 3-6.
  • Each of the individual enclosures has its own sump and pumping means for pumping ink from the sump to the central portion of the associated disc.
  • a plurality of such inking units may be assembled upon a longitudinally extending frame member in such number as to span the entire length of the adjacent ink roller. This not only permits the inventive structure to be accommodated to rollers of any length but permits quick and easy substitution for servicing purposes without necessity for removing the entire assembly.
  • an inking device for supplying a film of ink to a printing cylinder in a printing press comprising, in combination, an ink roller, a frame, a cup-like disc horizontally oriented and journaled in the frame, the disc having a peripheral lip, means for continuously depositing ink on the disc, means for rotating the disc at high speed so that the ink deposited thereon flows in a thin layer to the lip of the disc and is ejected radially outwardly therefrom by centrifugal force in a finely divided spray, a shield mounted on the frame and spaced outwardly from the disc to surround the same and having an opening at the bottom, the shield having an aperture adjacent the ink roller, and scraper blade means engaging the lip of the disc in the region remote from the aperture to prevent ejection of ink from the lip in the form of spray in the region of the scraper means while permitting ejection of ink spray in the region of the aperture and onto the surface of the ink roller.
  • the scraper blade means is in the form of a plurality of spaced blades extending inwardly with respect to the shield with the tip portions of the blades being in constant scraping engagement with the lip.
  • an inking device for supplying a film of ink to a printing cylinder in a printing press comprising, in combination, an ink roller, a frame, a cup-like disc horizontally oriented and journaled in the frame, the disc having a flat peripheral lip, means for continuously depositing ink on the disc, means for rotating the disc at high speed so that the ink deposited thereon flows in a thin layer to the lip of the disc and is ejected radially outwardly therefrom by centrifugal force in a finely divided spray, a cylindrical shield mounted on the frame and spaced outwardly from the disc to surround the same and having an opening at the bottom, the shield having an aperture adjacent the ink roller, a plurality of scraper blades mounted in intimate penetrating relation in the shield and convergently angled so that their tips flatly overlie the lip of the disc in the region remote from the aperture to prevent ejection of ink from the lip in the form of spray in the region of the scraper blades while permitting ejection of

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
US390520A 1972-08-22 1973-08-22 Device for applying ink to the inking roller of an offset printing press Expired - Lifetime US3885496A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722241281 DE2241281C3 (de) 1972-08-22 Vorrichtung zum Aufbringen pastoser Druckfarbe auf die Farbwalze einer Druckmaschine

Publications (1)

Publication Number Publication Date
US3885496A true US3885496A (en) 1975-05-27

Family

ID=5854227

Family Applications (1)

Application Number Title Priority Date Filing Date
US390520A Expired - Lifetime US3885496A (en) 1972-08-22 1973-08-22 Device for applying ink to the inking roller of an offset printing press

Country Status (3)

Country Link
US (1) US3885496A (sv)
FR (1) FR2196911B3 (sv)
GB (1) GB1440993A (sv)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3994438A (en) * 1974-08-07 1976-11-30 Horstine Farmery Limited Spray apparatus
US4006858A (en) * 1975-02-27 1977-02-08 Horstine Farmery Limited Spray apparatus
US4007684A (en) * 1973-09-26 1977-02-15 Nippon Telegraph And Telephone Public Corporation Ink liquid warmer for ink jet system printer
US4219281A (en) * 1977-08-05 1980-08-26 Hotchkiss-Brandt Sogeme H.B.S. Device for marking articles
US4625643A (en) * 1984-08-09 1986-12-02 Davis William F Ink dispensing means
US4986475A (en) * 1988-02-19 1991-01-22 Nabisco Brands, Inc. Method and apparatus for spraying fluids
US5218905A (en) * 1991-03-19 1993-06-15 Karl H. Sengewald Gmbh & Co. Printing assembly with individual zonal temperature control
US5226331A (en) * 1991-10-03 1993-07-13 General Electric Company Apparatus and method for measuring the particle number rate and the velocity distribution of a sprayed stream
US5295437A (en) * 1992-03-26 1994-03-22 Pechiney Emballage Alimentaire Offset printing process and corresponding apparatus
US5415692A (en) * 1988-03-17 1995-05-16 Kurosaki Refractories Co., Ltd. Apparatus for applying material against the wall of a molten metal discharging hole
EP0796662A2 (en) * 1996-03-21 1997-09-24 Consultex Corporation Method and apparatus for application of fluent material to a moving substrate
US6397745B2 (en) 1996-09-30 2002-06-04 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US20050005804A1 (en) * 2003-07-09 2005-01-13 Gerald Nathanson Coloring book and apparatus and method to form
US20100206190A1 (en) * 2007-09-28 2010-08-19 Baldwin-Japan Ltd. Spray dampener
US20150258556A1 (en) * 2012-09-28 2015-09-17 Agco Corporation Reclamation system for a controlled droplet applicator
US20160288152A1 (en) * 2015-03-31 2016-10-06 Thyssenkrupp Rasselstein Gmbh Method and application device for the application of an aqueous treatment solution to the surface of a moving strip

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769008A (en) * 1926-11-24 1930-07-01 Louis H Lehman Oil burner
US2086921A (en) * 1931-06-15 1937-07-13 Norris Painting Machinery Corp Spraying device
US2624356A (en) * 1950-01-09 1953-01-06 Hugh M Rumbaugh Smooth impeller dishwasher
US3455507A (en) * 1967-03-30 1969-07-15 Whitney Forbes Inc Spray dispenser
US3543680A (en) * 1968-02-09 1970-12-01 Liberty Glass Co Apparatus for imprinting objects such as bottles and the like
US3563173A (en) * 1969-09-19 1971-02-16 Harris Intertype Corp Liquid-handling mechanism
US3651756A (en) * 1969-08-11 1972-03-28 Roy R Smith Jr Spray dampening system with individual metering pumps for offset press
US3710714A (en) * 1970-11-09 1973-01-16 Polygraph Leipzig Stirring apparatus for circulating color or ink in the color chest of a printing machine
US3749313A (en) * 1970-11-28 1973-07-31 Weitmann & Conrad Device for moistening moving surfaces
US3759175A (en) * 1970-03-10 1973-09-18 Strachan & Henshaw Ltd Dampening apparatus with rotor for projecting spray

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1769008A (en) * 1926-11-24 1930-07-01 Louis H Lehman Oil burner
US2086921A (en) * 1931-06-15 1937-07-13 Norris Painting Machinery Corp Spraying device
US2624356A (en) * 1950-01-09 1953-01-06 Hugh M Rumbaugh Smooth impeller dishwasher
US3455507A (en) * 1967-03-30 1969-07-15 Whitney Forbes Inc Spray dispenser
US3543680A (en) * 1968-02-09 1970-12-01 Liberty Glass Co Apparatus for imprinting objects such as bottles and the like
US3651756A (en) * 1969-08-11 1972-03-28 Roy R Smith Jr Spray dampening system with individual metering pumps for offset press
US3563173A (en) * 1969-09-19 1971-02-16 Harris Intertype Corp Liquid-handling mechanism
US3759175A (en) * 1970-03-10 1973-09-18 Strachan & Henshaw Ltd Dampening apparatus with rotor for projecting spray
US3710714A (en) * 1970-11-09 1973-01-16 Polygraph Leipzig Stirring apparatus for circulating color or ink in the color chest of a printing machine
US3749313A (en) * 1970-11-28 1973-07-31 Weitmann & Conrad Device for moistening moving surfaces

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4007684A (en) * 1973-09-26 1977-02-15 Nippon Telegraph And Telephone Public Corporation Ink liquid warmer for ink jet system printer
US3994438A (en) * 1974-08-07 1976-11-30 Horstine Farmery Limited Spray apparatus
US4006858A (en) * 1975-02-27 1977-02-08 Horstine Farmery Limited Spray apparatus
US4219281A (en) * 1977-08-05 1980-08-26 Hotchkiss-Brandt Sogeme H.B.S. Device for marking articles
US4625643A (en) * 1984-08-09 1986-12-02 Davis William F Ink dispensing means
US4986475A (en) * 1988-02-19 1991-01-22 Nabisco Brands, Inc. Method and apparatus for spraying fluids
US5415692A (en) * 1988-03-17 1995-05-16 Kurosaki Refractories Co., Ltd. Apparatus for applying material against the wall of a molten metal discharging hole
US5218905A (en) * 1991-03-19 1993-06-15 Karl H. Sengewald Gmbh & Co. Printing assembly with individual zonal temperature control
US5226331A (en) * 1991-10-03 1993-07-13 General Electric Company Apparatus and method for measuring the particle number rate and the velocity distribution of a sprayed stream
US5295437A (en) * 1992-03-26 1994-03-22 Pechiney Emballage Alimentaire Offset printing process and corresponding apparatus
EP0796662A2 (en) * 1996-03-21 1997-09-24 Consultex Corporation Method and apparatus for application of fluent material to a moving substrate
EP0796662A3 (en) * 1996-03-21 1999-04-14 Consultex Corporation Method and apparatus for application of fluent material to a moving substrate
US6397745B2 (en) 1996-09-30 2002-06-04 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US6401612B2 (en) 1996-09-30 2002-06-11 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US6619206B2 (en) 1996-09-30 2003-09-16 Accel Graphic Systems, Inc. Method and apparatus for maintaining ink level in ink fountain of printing press
US20050005804A1 (en) * 2003-07-09 2005-01-13 Gerald Nathanson Coloring book and apparatus and method to form
US20100206190A1 (en) * 2007-09-28 2010-08-19 Baldwin-Japan Ltd. Spray dampener
US20150258556A1 (en) * 2012-09-28 2015-09-17 Agco Corporation Reclamation system for a controlled droplet applicator
US20160288152A1 (en) * 2015-03-31 2016-10-06 Thyssenkrupp Rasselstein Gmbh Method and application device for the application of an aqueous treatment solution to the surface of a moving strip

Also Published As

Publication number Publication date
FR2196911A1 (sv) 1974-03-22
GB1440993A (en) 1976-06-30
DE2241281B2 (de) 1977-04-28
DE2241281A1 (de) 1974-03-21
FR2196911B3 (sv) 1976-07-16

Similar Documents

Publication Publication Date Title
US3885496A (en) Device for applying ink to the inking roller of an offset printing press
US5099758A (en) Apparatus for applying a flowable medium to a surface, especially a web, roll or the like
US4034670A (en) Dampening device for lithographic printing press
JPH0326127B2 (sv)
US7703394B2 (en) Apparatus and method for the application of a liquid and printing unit and machine having the apparatus
US4281597A (en) Inking mechanism
JPH0741716B2 (ja) スクリーンローラと協働するインキレール
US3641932A (en) Ink applicator for gravure printing press
US20060243145A1 (en) Printing press and method for operating the same
US5615611A (en) Chamber doctor blade assembly
JP3046078U (ja) 印刷機において印刷物をコーティングするための装置
JPH074929B2 (ja) 輪転印刷機用のインキ装置
JP2634148B2 (ja) 凹版印刷用のインキ装置
US3205816A (en) Ink fountain with ink recirculation means
US5216952A (en) Brush-type dampening unit in a rotary printing machine
US3902417A (en) Wetting system for rotary offset printing presses
JPH0530625B2 (sv)
JP2001523598A (ja) 印刷装置
US4188882A (en) Dampening unit for offset printing machines
EP0272888B1 (en) Method and apparatus for dampening plate cylinder of offset press
SE509646C2 (sv) Doseringsanordning till ett färgverk för en tryckmaskin
GB1585452A (en) Inking mechanism
US5636566A (en) Gravure printing unit for a rotary press
US4981077A (en) Dampening apparatus for lithographic press
US3990365A (en) Cylinder moistening device