US3696743A - Apparatus for regulating a color dosing device in relation to a color doctor roller - Google Patents

Apparatus for regulating a color dosing device in relation to a color doctor roller Download PDF

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Publication number
US3696743A
US3696743A US17094A US3696743DA US3696743A US 3696743 A US3696743 A US 3696743A US 17094 A US17094 A US 17094A US 3696743D A US3696743D A US 3696743DA US 3696743 A US3696743 A US 3696743A
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Prior art keywords
color
dosing
dosing device
spacing bolt
control
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Expired - Lifetime
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US17094A
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English (en)
Inventor
Hans Johne
Gunter Schumann
Kurt Reichenberger
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Planeta Druckmaschinenwerk AG
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Planeta Druckmaschinenwerk AG
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    • 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

Definitions

  • a color dosing device in which the color profile setting is brought about through zone screws and/or through zone screws and interconnecting levers operating on the color knife.
  • the setting of the color slot takes place in that through a bolting of the color dosing installation abouta fulcrum, i.e. through the pivoting thereby made possible the operational angle can also be changed.
  • the color knife by means of a color knife carrying adjustment device without any pivoting is displaced with respect to the color doctor roller.
  • the color dosing device In order to set the operational angle, i.e. bring about a change to a different angular degree, the color dosing device is first tilted or inclined and thereafter the necessary readjustment of the color slot is brought about through a displacement of the color knife.
  • the color dosing is generally carried out at relatively low machine speeds and consequently the printer, that is the machine operator must adjust, i.e., correct the color dosing to the predetermined actual printing machine speeds.
  • the setting of the color dosing device is associated with the in connection therewith and with the fact that the operational layout design of the modern color printing machine which operate with doctor lifts of up to 90 cannot be utilized.
  • the setting possibility of adjusting the lever strips to their maximal length for forming a film in the color roller arrangement can also not be utilized.
  • the object of the invention is to improve the setting of color dosing devices to achieve a higher quality printing result and at the same time, to reduce the cost associated with the setting itself.
  • the complete installation is pivoted about a fulcrum point and this point, or the part of the color dosing device carrying the color knife, is shifted a distance corresponding to the change of the color slot.
  • this point or the part of the color dosing device carrying the color knife
  • For setting the color profile the individual color profile levers which operate the color knife edge are separately moved and for parallel setting of the color knife color profile storate setting all of the color profile levers are jointly moved.
  • the color profile levers which act on the color knife edge are provided with stop faces for color zone screws and with stop faces for a movable parallel storage bar which is movable in the color dosing device perpendicular, to the stop faces by the storage screws.
  • the total color dosing installation is pivotable on an adjustable rocker arm and the device for setting the rocker arm is arranged to act in a direction perpendicular to the rocker arm.
  • the color dosing device is provided with a control device abutting with a stop arranged securely in "the stand or support of the device, said control device consisting of a rotatable bushing provided in the color dosing device having an inner thread and a knurled collar in which bushing there is disposed a spacing bolt having a fine, that is, a precision thread and a graduated measuring indicator. An angle for preventing the rotational movement of this spacing bolt is pressed against the flattened part of the spacing bolt.
  • the center of gravityv of the color dosing device is located between the traverse bar and the color doctor roller.
  • a pressure spring is provided on a movably disposed spring rod contained in the color dosing device which spring presses over a removable, i.e., insertable wedge against a stop securely mounted in the structure.
  • FIG. 1 is a side elevational view of the color dosing device in section, showing setting through rotatably arranged eccentrics;
  • FIG. 2 is a section along line 2-2 of FIG. 1;
  • FIG. 13 is a setting device in accordance with the invention shown in section; a
  • FIG. 4 is a schematic representation of principle of the setting of the color dosing device showing setting 1 via the movable rocker arm;
  • FIG. 5 is a schematic representation of the principle for setting the color dosing device showing setting over an alignable fulcrum point
  • FIG. 6 is a schematic showing of the reverse solution of the principle: as shown in FIG. 5; and 7
  • FIG. 7 is a view of the whole of the printing machine inside elevation;
  • Each of thesetting arrangements, and namely color slot, operating angle, and color profile setting refer to a changingin the position of the color knife of .the color dosing device 2 with respect to the color doctor roller 3 under retention ofthe support line between the color knife 1 and the color profile levers 4.
  • the color dosing device 2 is rotatably disposed oneccentrics 5 for carrying out the changes in the, color slot and the operational angle.
  • These eccentrics 5 are interconnected and rotatably disposed on a traverse bar 6.
  • the interconnected eccentrics 5 are'provided with a setting lever 7 and asetting screw 8 for coupling, that is connecting the eccentrics with the traverse bar.
  • the color dosing device 2 is pivoted on eccentrics 5 while the eccentrics 5 are connected with the traverse bar 6.
  • the changes in color slot are made in fractions of 1 mm so that the resultant change of the operational angle is negligible.
  • the eccentrics 5 are locked together with the setting screw 8 on the traverse bar 6.'The change in the operational angle which takes place with the change of the color slot is compensatedfor by the turning of the eccentricsS following release of the setting screw 8.
  • the eccentricity e of the eccentrics corresponds indirection and amount to the change of the color slot which occurs with the change in the operational angle. 7
  • The. setting movements required for the color slot change and..the operational angle change are initiated through a control device which is provided in the color dosing device 2.
  • the control device consists of a bushing 10 which is mounted for rotation in the color dosing device 2 which bushing is provided with an internal thread and a knurled collar 9.
  • the bushing is also provided with a spacing bolt 11 which .in turn is provided with a precision thread and a graduated measuring indicator.
  • the spacing bolt 11 has a flat portion 12 against which an angle 13iis. pressed, the latter being firmly secured to the colo r dosing device 2 so that any rotation of the spacing bolt 11 isprevented. There is, thusly provided means whereby a rotation of the bushing 10 results in a shifting of the spacing bolt 11.
  • the spacing bolt of the setting device presses against a stop 14 which is securely mounted in the structure.
  • the point of gravity of the color dosing device is located between the traverse bar 6 and the color doctor roller 3 and, therefore, the spacing bolt 11 is in every possible situation pressed against the stop 14.
  • the color dosing device is provided with a spring 16 which is disposed on 'a spring rod 15 which is displaceably mounted in the color dosing'device. This spring 16 pressesvia a removably insertable wedge 17 against a stop 18 which is securely arranged in the structure.
  • the spring 16 In case, the complete color dosing device is to be pivoted, as for example, as required for cleaning purposes, the spring 16 must be released by shifting the spring bar 15 and removing the insertable wedge 17.
  • the setting of the color profile is carried out through a setting of the. color knife 1 which takes place via color profile levers 4 operating the color knife edge 19.
  • the color profile levers 4 are mounted for .rotation in the color dosing device and have stop faces 20 for the individual color zone screws 21 and also stop faces 22 for a parallel storage bar 23 which is movable perpendicularly to the stop faces in the color dosing device. The movement of the parallel storage bar 23 is controlled through storage screws 24.
  • the operation of the storage device takes place in the following manner.
  • the color profile required in connection with the individualprinting is set by the color zone screws 21, i.e. the color profile levers 4 which are arranged one next to the other over the entire width'of the color dosing device exhibit different positions.
  • the printer frequently is forced to print individual sheets.
  • the storage bar 23- is shifted by means of storage screw 24, in other words, all of the color profile levers are brought into the same position and the color knife 1 is set parallel by this action.
  • the color zone screws 21 'in this case retain their settings. After withdrawing the storage screws 24, the color profile levers 4 are pressed against the color zone screws 21 through the resilient nature of the color knife 1, which means that the color profile levers 4 are pressed in their original position.
  • FIGS. 4-6 there are shown in the form of schematic representations, theprinciples of different possibilities I for changing the color slot and the operational angle.
  • the entire color dosing device 2 is pivotable on an adjustable rocker arm 25.
  • the setting of the rocker arm takes place by means of a setting device 26 which acts on the arm in a substantially perpendicular direction.
  • the entire color dosing device 2 is pivotally disposed on a movable slide 27 (movable from left to right and vice versa).
  • the part 30 of the color dosing device 2 carrying the color knife 1 is slidably positioned on part 29 which in turn is pivotally
  • the color to be transferred to the sheet is contained in a color dosing device 2 andis transferred by means of various color rollers 36 to the plate cylinder 37 carrying the printing form. According to the manner of the making up of the printing form, there then takes place a color transfer onto the rubber cylinder 33. In order that satisfactory printing results be obtained, it is necessary that the color dosing device 2 be provided with a number of possibilities for adjusting the same.
  • an automatic control device for controlling color dosing means in relation to a color doctor roller wherein for setting of the color slot the entire color device is mounted for pivoting movement about a fulcrum under retention of the support line between the color knife and color profile levers, said color dosing means being pivotally mounted for pivoting of said entire color dosing means on pivotable eccentrics, said eccentrics being mounted on a traverse, the eccentricity of said eccentrics being proportional in direction and amount to the change of the color slot resulting from any change in operational setting angle, color profile levers being operatively associated with the edge of said color knife, said color profile levers being provided with first impact surfaces, color zone screws adapted for striking said first impact surfaces of said color profile levers, said color profile levers having second impact surfaces, storage bar means mounted for movement perpendicular to said second impact surfaces and storage screws for said storage bar, said storage bar being adapted for movement by said storage screws for striking said second impact surfaces of said color profile levers.
  • control dosing means are arranged abutting a stop firmly mounted in said control dosing device
  • said control means comprising a bushing mounted for rotation in said control dosing device, said bushing including internal thread means and a knurled collar, spacing bolt means provided with precision thread means and graduated indicator means being additionally provided in said bushing, said spacing bolt means having a flattened portion, wedge means for inhibiting rotational movement of said spacing bolt being securely mounted for pressing contact with said flattened portion of said spacing bolt in said control dosing means.
  • control dosing means are arranged abutting a stop firmly mounted in said control dosing device
  • said control means comprising a bushing mounted for rotation in said control dosing device, said bushing including internal thread means and a knurled collar, spacing bolt means provided with precision thread means and graduated indicator means being additionally provided in said bushing, said spacing bolt means having a flattened portion, wedge means for inhibiting rotational movement of said spacing bolt being securely mounted for pressing contact with said flattened portion of said spacing bolt in said control dosing means.
US17094A 1969-06-11 1970-03-06 Apparatus for regulating a color dosing device in relation to a color doctor roller Expired - Lifetime US3696743A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT5219869 1969-06-11

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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3851583A (en) * 1972-10-24 1974-12-03 Harris Intertype Corp Plate clamp registering mechanism
US3855927A (en) * 1972-06-13 1974-12-24 Roland Offsetmaschf Ink fountain blade for printing presses
US3922966A (en) * 1973-03-07 1975-12-02 Roland Offsetmaschf Ink fountain in printing presses
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
US4213390A (en) * 1977-10-04 1980-07-22 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft (M.A.N) Remote-control adjustment retrofit system for an ink supply in a printing machine
US4357872A (en) * 1979-12-21 1982-11-09 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for removal of dirt or other impurities interfering with the ink flow from the ink fountain of a printing press
US4481883A (en) * 1982-06-04 1984-11-13 Creusot-Loire Low-blade inking mechanism with detachable ink duct troughs
US4495864A (en) * 1982-02-03 1985-01-29 Heidelberger Druckmaschinen Ag Ink knife and adjusting device therefor on an ink duct of a rotary printing machine
US4502386A (en) * 1982-05-13 1985-03-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Ink fountain having temperature responsive element
US4864930A (en) * 1985-05-09 1989-09-12 Graphics Microsystems, Inc. Ink control system
US5052298A (en) * 1985-05-09 1991-10-01 Graphics Microsystems Ink control system

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4410305C2 (de) * 1994-03-25 1997-02-06 Roland Man Druckmasch Aufhängung für eine als Schutz vor den Druckwerkszylindern einer Druckmaschine dienenden Einrichtung
BE1008284A6 (nl) * 1994-05-06 1996-03-05 Printing International Naamloz Drukinrichting.

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH116596A (de) * 1924-11-14 1926-09-01 Vogtlaendische Maschf Ag Farbkasten für Druckmaschinen.
US1760573A (en) * 1926-11-15 1930-05-27 Wood Newspaper Mach Corp Page cut-off for ink fountains
US2140950A (en) * 1937-02-06 1938-12-20 Duplex Printing Press Co Inking mechanism for printing rolls
US2278138A (en) * 1940-08-03 1942-03-31 Interchem Corp Rotary intaglio printing press
DE863346C (de) * 1941-11-02 1953-01-15 Maschf Augsburg Nuernberg Ag Farbkasten fuer Druckmaschinen

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH116596A (de) * 1924-11-14 1926-09-01 Vogtlaendische Maschf Ag Farbkasten für Druckmaschinen.
US1760573A (en) * 1926-11-15 1930-05-27 Wood Newspaper Mach Corp Page cut-off for ink fountains
US2140950A (en) * 1937-02-06 1938-12-20 Duplex Printing Press Co Inking mechanism for printing rolls
US2278138A (en) * 1940-08-03 1942-03-31 Interchem Corp Rotary intaglio printing press
DE863346C (de) * 1941-11-02 1953-01-15 Maschf Augsburg Nuernberg Ag Farbkasten fuer Druckmaschinen

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3855927A (en) * 1972-06-13 1974-12-24 Roland Offsetmaschf Ink fountain blade for printing presses
US3851583A (en) * 1972-10-24 1974-12-03 Harris Intertype Corp Plate clamp registering mechanism
US3922966A (en) * 1973-03-07 1975-12-02 Roland Offsetmaschf Ink fountain in printing presses
US4170177A (en) * 1977-04-07 1979-10-09 Toshiba Kikai Kabushiki Kaisha Printing machine inking device with plurality of cam levers
US4213390A (en) * 1977-10-04 1980-07-22 Maschinenfabrik Augsburg-Nurnberg Aktiengesellschaft (M.A.N) Remote-control adjustment retrofit system for an ink supply in a printing machine
US4357872A (en) * 1979-12-21 1982-11-09 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Arrangement for removal of dirt or other impurities interfering with the ink flow from the ink fountain of a printing press
US4495864A (en) * 1982-02-03 1985-01-29 Heidelberger Druckmaschinen Ag Ink knife and adjusting device therefor on an ink duct of a rotary printing machine
US4502386A (en) * 1982-05-13 1985-03-05 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Ink fountain having temperature responsive element
US4481883A (en) * 1982-06-04 1984-11-13 Creusot-Loire Low-blade inking mechanism with detachable ink duct troughs
US4864930A (en) * 1985-05-09 1989-09-12 Graphics Microsystems, Inc. Ink control system
US5052298A (en) * 1985-05-09 1991-10-01 Graphics Microsystems Ink control system

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Publication number Publication date
DE1942732B2 (de) 1974-12-05
DE1942732A1 (de) 1971-01-14
DE1942732C3 (de) 1975-07-10

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