EP0131107B1 - Farbdosiereinrichtung für eine Druckmaschine - Google Patents
Farbdosiereinrichtung für eine Druckmaschine Download PDFInfo
- Publication number
- EP0131107B1 EP0131107B1 EP84105188A EP84105188A EP0131107B1 EP 0131107 B1 EP0131107 B1 EP 0131107B1 EP 84105188 A EP84105188 A EP 84105188A EP 84105188 A EP84105188 A EP 84105188A EP 0131107 B1 EP0131107 B1 EP 0131107B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- ink
- fountain roller
- ink metering
- ink fountain
- contact
- 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
Links
- 239000012212 insulator Substances 0.000 claims abstract description 5
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 abstract description 3
- 230000013011 mating Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
- B41F31/045—Remote control of the duct keys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2231/00—Inking devices; Recovering printing ink
- B41P2231/12—Axially segmented ink blades
Definitions
- the invention relates to an ink metering device for an inking unit of a printing press with a plurality of ink metering elements which can be set independently of one another by means of an actuating gear driven by a remotely controllable electric servomotor and which are provided with a cutting edge which limits the ink application to an ink fountain roller, the distance to the ink fountain roller being variable by the adjusting movement of the servomotor is.
- a known ink metering device of the type specified (DE-PS 2 629 331) has a plurality of sliders attached to the ink fountain roller and movable individually to the latter, the adjustment of which is effected by an eccentric shaft which engages in a recess in the slider and which is rotated by the servomotor.
- This known color metering device has proven itself in practice. It has been shown, however, that once a setting of a certain color profile has been found, it does not persist over a longer operating time, so that the slides need to be readjusted from time to time. This process is very time consuming and therefore undesirable.
- the invention has for its object to provide a color metering device of the type mentioned, which is easier to adjust and when adjusted, disturbing influences by wear and other operational changes to the machine are compensated.
- each ink metering element can be pressed against the ink fountain roller in its adjustment position by the force of a spring and can be lifted off the ink fountain roller by the actuator against the force, and in that the actuator on the ink metering element or on the ink fountain of the inking unit has only one force transmitting pair of stops is supported, which forms an electrical measuring contact for the control of the servomotor.
- an ink metering device is created in which the position of the ink metering elements, in which their cutting edges bear against the ink fountain roller, is measured in a simple and precise manner by closing an electrical contact. This "zeroing" of the color metering elements then forms the starting variable for their precise setting.
- This has the advantage that wear and other disruptive influences, such as operating temperature or bearing play, have no influence on the setting of the ink metering elements, since the actual position of the ink metering elements relative to the ink fountain roller is measured before the setting.
- a further advantage of the ink metering device according to the invention is that empirically determined setting values for a specific printing process remain valid even after a longer operating time of the printing press, so that these values can be stored and the ink metering device can be set automatically.
- a simplification of the setting of the ink metering device can be achieved in that the transmission characteristic of the actuating gear is linear.
- the steps of the servomotor for generating a certain gap between the ink fountain roller and the cutting edge of the ink metering element remain the same over the entire setting range, and special consideration of the position of the actuating gear reached when the measuring contact is closed can be omitted.
- a preferred embodiment of an ink metering device with ink metering elements designed as flat slides and movable radially to the ink fountain roller according to the invention is that a spring support is attached to the sliders at a first distance from the ink fountain roller and the actuating gear is attached at a second larger distance from the ink fountain roller, and that between The spring support and the actuating gear are arranged on a support attached to the ink fountain, which has on its side facing the actuating gear a stop designed as a mating contact for a contact surface of the actuating gear and on its opposite side a receptacle for a compression spring clamped between the spring support and the support.
- the mating contact attached to the carrier can expediently consist of a contact plate which is supported by a rigid insulator.
- the actuating gear has a threaded spindle which can be rotated by the servomotor and a nut which is screwed to the threaded spindle, secured against rotation and can be fastened to the ink metering element, the threaded spindle having an end face designed as a contact surface on a connector which can be connected to the ink fountain, a stop forming a counter contact can be applied.
- a simple, high-precision actuator gearbox is combined in a cheap and space-saving manner with the pair of stops forming the measuring contact.
- the threaded spindle and nut are advantageously braced against one another by a spring in the direction of force transmission.
- a particularly advantageous method for operating a printing press that is equipped with an ink metering device according to the invention is that the ink metering elements are reset each time the machine is stopped, by using the starting variable for setting the preset setting values by moving the cutting edges the ink metering elements on the ink fountain roller is newly determined. Changes in the color gap caused by wear or other operating influences are compensated in this way for each machine stop.
- the ink metering device according to the invention also enables a method for operating a printing press, in which, at certain time intervals during operation, one ink metering element after the other is briefly applied with its cutting edge to the inking roller and then adjusted again to the predetermined distance from the inking roller due to the newly determined initial size becomes.
- This method has the advantage that the slight deformations of the ink fountain roller and the ink fountain that occur during operation can also be taken into account when setting the ink metering elements. Since only one ink metering element briefly leaves the specified setting position, the ink distribution in the inking unit is not disturbed thereby.
- the force of the springs for pressing the ink metering elements onto the ink fountain roller is dimensioned in such a way that the ink fountain roller is not damaged.
- the drawing shows an inking unit with an ink fountain roller 1 and an ink fountain lower part 2, which carries an ink slide 4 mounted in a guide rail 3.
- the ink fountain upper part which receives the printing ink, is omitted in the drawing, since it would cover up the ink slide 4.
- the color slide 4 is composed of a widened head part 5 with a cutting edge 6 and a shaft part 7 sliding in the guide rail 3.
- a fastening screw 8 holds the ink slide 4 in contact with the ink fountain lower part 2, but without impairing its longitudinal displaceability.
- the shaft part 7 In its central region, the shaft part 7 has an opening 9 which extends in its longitudinal direction and through which a support 11, which is fastened by means of a screw 10 to the lower part of the ink fountain, projects.
- the carrier 11 Above the shaft part 7, the carrier 11 has on its side facing the ink fountain shaft 1 a spring plate 12 on which a compression spring 13 is supported, which rests with its opposite end on a spring plate 14 which is supported by a spring support 15 fastened to the shaft part 7 .
- an insulator plate 16 which carries a contact plate 17, is fastened to the carrier 11.
- the insulator plate 16 is made of a rigid material.
- a threaded spindle 18 rests with its end face, which is screwed into a nut 19 fastened on the shaft part 7.
- Spindle 18 and nut 19 form an actuating gear which is moved by a servomotor 21 via a reduction gear 20.
- the end of the threaded spindle 18 facing away from the contact plate 17 is surrounded by a compression spring 22 which is supported on the nut 19 on the one hand and on a gearwheel 23 of the reduction gear 20 fastened to the spindle end.
- Fig. 1 the ink slide 4 is shown in its working position during a printing process. In this position there is a gap 25 between the cutting edge 6 of the ink slide 4 and the ink fountain roller 1, the width of which is to be adjusted to the amount of ink required in the respective printing process in the area of the ink slide 4.
- the gap 25 is maintained by the threaded spindle 18 supported on the contact plate 17 and the nut 19 by keeping the compression spring 13 tensioned and preventing the ink slide 4 from moving in the direction of the ink fountain roller 1.
- a movement of the color slide 4 in the opposite direction and in the sense of an enlargement of the gap 25 is avoided by the force of the compression spring 13, the size of which is dimensioned such that it resists the hydrodynamic color bridges occurring on the cutting edge 6.
- the starting point for the adjustment of the desired gap 25 is the cutting edge 6 on the ink fountain roller 1.
- a change in the position of the ink slide relative to the ink fountain roller due to temperature or wear therefore has no influence.
- the threaded spindle 18 is screwed into the nut 19 with its end facing the ink fountain roller 1 by appropriate control of the servomotor 21, so that the ink slide 4 is pushed by the compression spring 13 in the direction of the Ink fountain roller 1 is moved.
- the configuration described is suitable for a wide variety of types of automatic inking unit controls.
- the constantly repeated new determination of the zero position on which the setting is based achieves high setting accuracy and good reproducibility of tried and tested, advantageous setting values.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Dot-Matrix Printers And Others (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT84105188T ATE37686T1 (de) | 1983-07-11 | 1984-05-08 | Farbdosiereinrichtung fuer eine druckmaschine. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3324952A DE3324952C1 (de) | 1983-07-11 | 1983-07-11 | Farbdosiereinrichtung fuer eine Druckmaschine |
DE3324952 | 1983-07-11 |
Publications (3)
Publication Number | Publication Date |
---|---|
EP0131107A2 EP0131107A2 (de) | 1985-01-16 |
EP0131107A3 EP0131107A3 (en) | 1986-10-29 |
EP0131107B1 true EP0131107B1 (de) | 1988-10-05 |
Family
ID=6203679
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP84105188A Expired EP0131107B1 (de) | 1983-07-11 | 1984-05-08 | Farbdosiereinrichtung für eine Druckmaschine |
Country Status (5)
Country | Link |
---|---|
US (1) | US4581994A (it) |
EP (1) | EP0131107B1 (it) |
JP (1) | JPS6089366A (it) |
AT (1) | ATE37686T1 (it) |
DE (1) | DE3324952C1 (it) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2906053B2 (ja) * | 1987-12-22 | 1999-06-14 | 株式会社東京機械製作所 | ドクターブレードの当接制御装置 |
DE3914831C3 (de) * | 1989-05-05 | 1999-05-20 | Roland Man Druckmasch | Vorrichtung zum zonenweisen Einstellen eines Dosierspaltes einer Farbdosieranlage einer Druckmaschine |
US5138944A (en) * | 1991-09-03 | 1992-08-18 | Heidelberg Harris Inc. | Method and apparatus for setting respective positions of ink keys |
DE4131679C1 (it) * | 1991-09-24 | 1993-04-08 | Man Roland Druckmaschinen Ag, 6050 Offenbach, De | |
US5628827A (en) * | 1992-09-25 | 1997-05-13 | Minnesota Mining And Manufacturing Company | Non-recirculating, die supplied doctored roll coater with solvent addition |
EP0714325B1 (en) * | 1993-08-20 | 2002-05-15 | Minnesota Mining And Manufacturing Company | Non-recirculating, die supplied doctored roll coater with solvent addition |
DE19614191A1 (de) * | 1996-04-10 | 1997-10-16 | Heidelberger Druckmasch Ag | Farbdosiereinrichtung für Farbwerke von Druckmaschinen |
IT237845Y1 (it) * | 1997-08-01 | 2000-09-29 | Bea Italiana S P A | Dispositivo portatile per inserire,entro sedi predefinite di un corpo,come un mobile,organi di vincolo e/o supporto di elementi portanti |
US6067000A (en) * | 1999-01-21 | 2000-05-23 | Siemens Automotive Corporation | Electromagnetic actuator upper spring assembly |
JP2002210921A (ja) | 2001-01-18 | 2002-07-31 | Komori Corp | 印刷機のインキツボブレード原点位置調整方法及び装置 |
ATE292018T1 (de) * | 2001-05-17 | 2005-04-15 | Veslatec Oy | Einstellmechanismus für farbrakel |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US625318A (en) * | 1899-05-23 | And phila | ||
US1778476A (en) * | 1927-12-21 | 1930-10-14 | Wood Newspaper Mach Corp | Rigid-blade fountain adjustment |
US2161943A (en) * | 1938-01-17 | 1939-06-13 | Carl D Baue | Ink fountain |
US3110254A (en) * | 1959-07-24 | 1963-11-12 | William F Davis | Means for regulating fluid control apparatus |
US3057294A (en) * | 1959-09-09 | 1962-10-09 | Linotype Machinery Ltd | Inking systems for printing machines |
DE1857738U (de) * | 1960-03-09 | 1962-08-30 | Pietro Mongitore | Antriebs- oder arbeitsmaschine, insbesondere brennkraftmaschine. |
DE2125288A1 (de) * | 1971-03-22 | 1972-09-28 | Polygraph Leipzig Kom F Polygr | Verfahren und Einrichtung zur Fernbedienung von Stell- und Antriebsgliedern an Druckmaschinen |
US3727550A (en) * | 1971-09-13 | 1973-04-17 | North American Rockwell | Adjusting arrangement for ink fountain in printing press |
US3747524A (en) * | 1971-09-21 | 1973-07-24 | Harris Intertype Corp | Ink fountain key control system |
US3978788A (en) * | 1975-05-16 | 1976-09-07 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Ink metering assembly for printing press |
US4058058A (en) * | 1976-02-26 | 1977-11-15 | George Hantscho Company, Inc. | Ink fountain for printing presses |
DE2629331C3 (de) * | 1976-06-30 | 1979-03-08 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Farbdosiereinrichtung an Druckmaschinen |
US4193345A (en) * | 1977-04-01 | 1980-03-18 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag | Device for adjustment of the ink flow on printing press inking units |
DE2728738B2 (de) * | 1977-06-25 | 1979-05-10 | Roland Offsetmaschinenfabrik Faber & Schleicher Ag, 6050 Offenbach | Eulrichtung zur Kontrolle und Regelung der Farbgebung an Druckmaschinen |
DE2935489C2 (de) * | 1979-09-03 | 1982-12-09 | M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 8000 München | Farbmessereinstelleinrichtung für Druckmaschinen, insbesondere Rotationsdruckmaschinen |
DE7927000U1 (de) * | 1979-09-22 | 1979-12-13 | M.A.N.-Roland Druckmaschinen Ag, 6050 Offenbach | Vorrichtung zum einstellen des farbmessers eines farbwerkes einer druckmaschine |
DE2951653C2 (de) * | 1979-12-21 | 1983-04-14 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Vorrichtung zum Dosieren von Farbe auf der Farbkastenwalze eines Farbwerks für Druckmaschinen |
JPS5692068A (en) * | 1979-12-27 | 1981-07-25 | Toshiba Mach Co Ltd | Controller for discharge of ink |
DD152679A3 (de) * | 1980-04-10 | 1981-12-09 | Hans J Obering | Fernverstellbare farbzonenschraube |
DE3018784C2 (de) * | 1980-05-16 | 1982-12-16 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Farbdosiereinrichtung in einem Farbkasten für Offset- oder Hochdruckmaschinen |
GB2083410B (en) * | 1980-08-14 | 1984-09-05 | Komori Printing Mach | Ink fountain device for use in printing press |
US4372207A (en) * | 1981-03-10 | 1983-02-08 | Komori Printing Machinery Co., Ltd. | Ink fountain devices for use in printing press |
DE3211156A1 (de) * | 1982-03-26 | 1983-10-06 | Roland Man Druckmasch | Farbdosiereinrichtung |
-
1983
- 1983-07-11 DE DE3324952A patent/DE3324952C1/de not_active Expired
-
1984
- 1984-05-08 EP EP84105188A patent/EP0131107B1/de not_active Expired
- 1984-05-08 AT AT84105188T patent/ATE37686T1/de active
- 1984-07-11 JP JP59142512A patent/JPS6089366A/ja active Granted
- 1984-07-11 US US06/629,637 patent/US4581994A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
ATE37686T1 (de) | 1988-10-15 |
JPH0449475B2 (it) | 1992-08-11 |
US4581994A (en) | 1986-04-15 |
EP0131107A3 (en) | 1986-10-29 |
DE3324952C1 (de) | 1985-02-14 |
EP0131107A2 (de) | 1985-01-16 |
JPS6089366A (ja) | 1985-05-20 |
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