Printing apparatus of offset printing machine
专利摘要:
The present invention relates to an inking device for printing with greasy ink, said device being characterized in that it comprises, downstream of the zone of contact of the inking roller and the plate or photogravure cylinder, a second rod parallel to the inking roller, pressed under strong pressure against the soft surface layer of said roller and forming a barrier only against the dampening liquid, while allowing all the residual film of ink remaining on the periphery of the inking roller to pass and thus return to the mass of ink in the inking device. This invention is more particularly applicable in printing machines employing greasy ink, such as offset or typo printers. 公开号:SU736868A3 申请号:SU782640399 申请日:1978-07-21 公开日:1980-05-25 发明作者:Гастон Корс Луи 申请人:Машин Шамбон С.А. (Фирма); IPC主号:
专利说明:
a support beam 3 with side walls (not shown i}, forming a paint container 4 mounted on the beam 3 a rigid paint rod 5 on the roller 1, a motor 6 for rotating the rod 5 in the same direction as the roller, means for adjusting the surface of the roller. The latter includes a tank 7 for a moistening liquid and two rollers 8 and 9, transferring a moisturizing liquid from the tank 7 to the surface of roller I, and is located between the zones of interaction of roller 1 with rod 5 and the printing cylinder 10 of the printing machine as the roller rotates. addition appa The casing contains an additional rigid rod 11 in contact with the knurling roller and located between the interaction zones of the roller with the mold or the cylinder 10 and the rod 5 during the rotation of the roller and the means for pressing the stering 11 against the surface of the roller, made in the form of a beam 12 with clamping screws 13, To adjust the degree of clamping of the rod 5 to the roller 1 there are adjustment screws 14. During the operation of the inventive dyeing apparatus, a paint whose viscosity is at least 50 pz, as a result of the rolling of the rod 5 on the surface of the roller 1, is derived from the colorful container in the form of a strip 15 having a very small thickness of 6 (about 12 microns) and the entire length of the roller. When the roller 1 rotates through the zone of its contact with the roller 9, a film of moisturizing liquid 16 is applied to it, which is transferred together with the paint film 15 to the surface of the mold cylinder 10. Separation of this transfer occurs in the res.SbTate (3 films 15 and 16, one part of which transferred onto; the surface of the plate cylinder 10 in the form of film layers 17 and 18, while the friend remains on the surface of the roller 1 in the form of film layers 19 and 20 of paint and a moisturizing liquid. The film layers 17 and 18 are used for printing and the film layers 19. and 20 are headed towards colorful capacity. To avoid the return of the moisturizing fluid, the ink reservoir uses a wipe 11 located in the recess 21 of the beam 12. The additional rod 11 ensures effective delay of the moistening oil supply, prevents the flow between the rod 11 and the upper roller 1, but completely relieves the irradiation of the paint due to the effect of the differential rolling of the films created by the action of the rod 11 feSISei Slii; : -ii. a film coat of paint 19, the viscosity of which exceeds BO pz and a film layer 20 of a moisturizing fluid having a viscosity of about I cap. The thickness of the paint film 15 formed on the roller 1 by means of the rod 5 is determined by the formula p.1 ../ b, - g V rVTV e V - tangential velocity Where rolling paint; V.E - tangential velocity rod 5; tg is the radius of the rod 5; S is the magnitude of the indentation of the rod b in the surface of the roller 1; R elastic modulus of elastic coating 2 roller 1; e coating thickness 2; - paint viscosity. The rod 11 can be viewed as a rolling effect, similar to the rod 5. In the zone of contact of the rod 11 with roller 1 there are two film layers, namely a layer of paint 19 with a thickness: - and layers 20 of absorbing liquid with thickness X, The rod 11 rolls the film of the moistening liquid 20 with a thickness of 2 — as a result, the rod 11 cannot reduce the thickness of the paint film 19 and it passes completely. The liquid forming the film 20 will be passed through with a thickness of Eg, which depends on its viscosity and the two parameters given in this formula. The original basic formula can & be written as follows; e. . . If there is no mean that the average cleaning regulation is absent, that is, E-0.5 (cleaning degree 50%), and the additional rod Il is stationary, therefore e is-O, and if Xl (paint viscosity) is in the order of 300 pz , (viscosity, moisturizing fluid) is equal to 1 sps, then BOTH. . , / „, 2/300., g --- (0). The film of the liquid passed by the rod 11 has a thickness which is almost 50 times less than the thickness of layer 19. In practice, it was found that the thickness of this layer is even smaller, i.e. rod 11 provides a floor. 5th passage of the film layer paint 19 and completely retains the moisturizing fluid, which can be collected in the container 22, FIG. 2-5 shows a colorful apparatus in which the rod 11 is mounted on the supporting beam 3, the bearing of the rod 5. The rod 11 closes the upper part of the ink tank, which ensures the terminality of the ink reservoir, to which the ink can be supplied under pressure through the channel 23. The liquid remaining on the surface of the roller (see FIG. 2) 1 is supplied with the aid of the latter to the upper part of the ink reservoir (above the rod 11). The liquid removed by the rod 11 can be removed by any appropriate means, for example a suction device, or by tilting the support beam 3, as a result of which the moistening liquid is discharged into the container 7. In the support beam 3 there is a distribution chamber 24, located along the entire length of the beam, communicating with slit 25 with a cavity formed by the rods 5 and 11 (see Fig. 3-5), . In all versions, the rod 11 may be rotated in the direction opposite to the direction of rotation of the knurling roller 1, but it can also be fixed, which is a more efficient solution.
权利要求:
Claims (5) [1] Invention Formula 1, an offset printing machine with an inking press containing a knurling roller, a support beam with side walls forming a paint container mounted on a beam a hard rod for supplying paint to knurling roller, means for wedging the rod in the same direction as the roller, means for moistening the surface of the knurling, including a container for the moistening liquid and located between the zones of interaction between the roller and the forme cylinder and the printing cylinder. and in the direction of rotation of the roller, and the drive, characterized in that, in order to improve the quality of the roll o paint, it has an additional rigid rod in contact with the knurling roller and located between the zones of interaction of the roller with the forme cylinder and the rod for 5 supplying paint to the rotational course of the roller, and means for pressing the additional rod to the surface of the roller. [2] 2. The apparatus according to claim 1, which is determined by the fact that the means for pressing is made in the form of a beam with gland screws. [3] 3, the Apparatus according to claim 1, characterized in that the additional rod is mounted on 5 support beam, have for supplying paint under pressure in the space between the rod 1 "w [4] 4. The device according to claims 1 and 3, which is based on the fact that 0 a beam, a distribution chamber in communication with the channel D for supplying the edge. [5] 5. The device on the PP. 1, 3 and D, characterized in that 5, the support beam is mounted Inclined to drain the moistening liquid removed from the surface of the knurling roller into the container of the means for moistening the surface of the rolling roller. 0 Sources of information taken into account in the examination 1. USSR patent for application 2478854, cl. In 4GR, 1977. P 38 Fi. J s
类似技术:
公开号 | 公开日 | 专利标题 SU736868A3|1980-05-25|Printing apparatus of offset printing machine US3433155A|1969-03-18|Mechanism for applying a coating to a plate US4724764A|1988-02-16|Dampening system US3168037A|1965-02-02|Means for dampening lithographic offset printing plates CA1195179A|1985-10-15|Damping-inking unit for offset printing presses JP3184050B2|2001-07-09|Ink supply device for gravure printing press US4208963A|1980-06-24|Newspaper printing system CA1311149C|1992-12-08|Film dampener unit for offset printing presses JP2977540B2|1999-11-15|Shortening ink device GB1432677A|1976-04-22|Method and apparatus for inking printing plates US4407196A|1983-10-04|Method of enhancing inking in offset presses US5121689A|1992-06-16|Ultrasonic ink metering for variable input control in keyless lithographic printing US4233898A|1980-11-18|Reversible newspaper press US3259062A|1966-07-05|Process for applying a water-soluble organic dampening fluid US4527471A|1985-07-09|Dampening fluid removal device US3902417A|1975-09-02|Wetting system for rotary offset printing presses US3785285A|1974-01-15|Damping device for rotary offset press US5355799A|1994-10-18|Applicator device for viscous materials CA1138711A|1983-01-04|Reversible newspaper press US4237785A|1980-12-09|Inker for applying newsprint type ink US5865116A|1999-02-02|Ink receptive dampening system for lithographic printing press US5588365A|1996-12-31|Apparatus for metering liquid media in offset printing machines CA1127453A|1982-07-13|Ink metering apparatus US6571710B1|2003-06-03|Keyless inker for a printing press US5992317A|1999-11-30|Dampening unit for an offset printing machine
同族专利:
公开号 | 公开日 GB2002688B|1982-01-06| US4211167A|1980-07-08| BE869170A|1978-11-16| LU80023A1|1978-12-12| JPS5498809A|1979-08-04| IT1097050B|1985-08-26| JPS5643037B2|1981-10-08| NL7807792A|1979-01-24| BR7804711A|1979-02-06| CH624046A5|1981-07-15| GB2002688A|1979-02-28| FR2397939B1|1982-04-30| DE2832172A1|1979-03-08| IT7825934D0|1978-07-20| FR2397939A1|1979-02-16|
引用文献:
公开号 | 申请日 | 公开日 | 申请人 | 专利标题 US2560572A|1946-06-25|1951-07-17|West Virginia Pulp & Paper Co|Method of coating paper| US3926114A|1967-06-30|1975-12-16|Walter E S Matuschke|Rotary lithographic printing press with ink and dampening fluid separator| US3626833A|1969-06-09|1971-12-14|Addressograph Multigraph|Liquid developing apparatus| US3587463A|1970-05-18|1971-06-28|Wallace H Granger|Simplified circulating inking system for rotary newspaper printing press| US3952700A|1970-11-09|1976-04-27|Xerox Corporation|Liquid applicator| US4041864A|1972-05-09|1977-08-16|Dahlgren Manufacturing Company|Method and apparatus for inking printing plates| DE2438668B2|1973-08-28|1979-03-01|Texogesa S.A., Genf |Inking unit for printing machines|DE2856088A1|1978-12-23|1980-07-03|Maschf Augsburg Nuernberg Ag|INK| US4287827A|1979-05-17|1981-09-08|Warner Gordon R|Combined inking and moistening roller| JPS6258310B2|1979-06-06|1987-12-04|Hitachi Ltd| US4408527A|1981-05-26|1983-10-11|Bell Clinton C|Flexographic ink distribution system| DE3134796C2|1981-09-02|1983-12-01|Koenig & Bauer AG, 8700 Würzburg|Inking unit for a rotary printing press| WO1983000842A1|1981-09-08|1983-03-17|Dahlgren, Harold, Phillip|Dampening fluid removal device| US4452139A|1981-09-08|1984-06-05|Dahlgren Harold P|Dampening fluid evaporator and method| DE3232780C2|1981-10-31|1986-02-06|Heidelberger Druckmaschinen Ag, 6900 Heidelberg|Inking unit for offset printing machines| DE3230119C2|1982-08-13|1984-12-06|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|Ink fountain roller for an inking unit of a rotary printing press| US4527471A|1983-05-06|1985-07-09|Dahlgren Harold P|Dampening fluid removal device| DE3324893C1|1983-07-09|1985-03-14|Heidelberger Druckmaschinen Ag, 6900 Heidelberg|Device for dosing the color in offset printing machines| DE3324950C2|1983-07-11|1986-04-03|M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach|Ink metering device for a printing machine| JPH0612927Y2|1984-04-30|1994-04-06|株式会社東京機械製作所|Water removing device for measuring rolls such as mesh rolls| JPH0539888Y2|1984-07-20|1993-10-08| JPH0539887Y2|1984-07-20|1993-10-08| DE3525794A1|1985-07-19|1987-01-29|Rueesch Ferd Ag|DEVICE FOR PRE-EMULSIFYING THE COLOR EMULSION IN OFFSET PRINTING WORKS| US4919047A|1985-08-27|1990-04-24|Toray Industries, Inc.|Multicolor printing press| JPH0470992B2|1986-06-09|1992-11-12|Tokyo Kikai Seisakusho Ltd| DE3622550C2|1986-07-04|1994-05-05|Koenig & Bauer Ag|Short offset inking unit| DE3714936C2|1987-05-05|1989-11-30|Maschinenfabrik Wifag, Bern, Ch| JPH0286449A|1988-09-22|1990-03-27|Mitsubishi Heavy Ind Ltd|Ink feed device| GB8825411D0|1988-10-31|1988-11-30|Vickers Plc|Improvements in/relating to lithographic printing| FR2650535A1|1989-08-02|1991-02-08|Corse Louis|Device for removing excess water associated with a device for applying ink to and moistening an offset rotary printing press| FR2668419A1|1990-10-24|1992-04-30|Corse Louis|Device for eliminating excess water associated with an inking and moistening apparatus for an offset rotary printer| DE4210529A1|1991-12-11|1993-10-07|Kochsmeier Hans Hermann|Dosing device for liquid application agents| JP2906951B2|1993-08-11|1999-06-21|ボールドウィンアジアパシフィックコーポレーション|Offset printing machine dampening water supply device| US5620515A|1995-05-30|1997-04-15|Inoue Kinzoku Kogyo Co., Ltd.|Coating apparatus| EP0749832B1|1995-06-24|2002-06-26|Kabushiki Kaisha Tokyo Kikai Seisakusho|Ink-furnishing apparatus| DE19529205C2|1995-08-09|1997-08-14|Roland Man Druckmasch|Dampening unit for an offset printing machine| JP2873925B2|1995-08-28|1999-03-24|株式会社東京機械製作所|Ink supply device with dehydration function| DE19642399B4|1995-10-14|2004-04-15|Techno Roll Co., Ltd., Izumi|Ink tray assembly for a printing press| DE19623349A1|1996-06-12|1997-12-18|Baldwin Gegenheimer Gmbh|Fluid supply system used in printing industry| FR2764843B1|1997-06-19|1999-08-20|Martin Sa|MULTIFUNCTIONAL INKING SYSTEM FOR A FLEXOGRAPHIC PRINTER| DE10028477A1|2000-06-08|2001-12-13|Roland Man Druckmasch|Ink applicator and dispenser for printer roller has two doctor blades, with differing edge radii.| DE10028476A1|2000-06-08|2001-12-13|Roland Man Druckmasch|Doctor blade device for clearing water from soft surface of printer roller has blade edge radius of 2 to 10 millimetres| JP2003154630A|2001-08-06|2003-05-27|Fuji Photo Film Co Ltd|Ink supplying device and printer| BRPI0817347A2|2007-10-19|2011-08-30|Khs Ag|bottle or similar container printing apparatus on an outer surface of a container| US20120291642A1|2011-05-16|2012-11-22|Xerox Corporation|Methods, apparatus, and systems for direct inking to a digital offset plate|
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申请号 | 申请日 | 专利标题 FR7722525A|FR2397939B1|1977-07-22|1977-07-22| 相关专利
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