EP0304445A1 - Farbwerk, dessen farbaufstrich steuerbar ist. - Google Patents
Farbwerk, dessen farbaufstrich steuerbar ist.Info
- Publication number
- EP0304445A1 EP0304445A1 EP88901784A EP88901784A EP0304445A1 EP 0304445 A1 EP0304445 A1 EP 0304445A1 EP 88901784 A EP88901784 A EP 88901784A EP 88901784 A EP88901784 A EP 88901784A EP 0304445 A1 EP0304445 A1 EP 0304445A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- roller
- ink
- lifter
- inking
- sections
- 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.)
- Granted
Links
- 239000003973 paint Substances 0.000 title claims description 4
- 230000001419 dependent effect Effects 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- DMFGNRRURHSENX-UHFFFAOYSA-N beryllium copper Chemical compound [Be].[Cu] DMFGNRRURHSENX-UHFFFAOYSA-N 0.000 description 1
- 238000001739 density measurement Methods 0.000 description 1
- 239000003302 ferromagnetic material Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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
- B41F31/14—Applications of messenger or other moving transfer rollers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S101/00—Printing
- Y10S101/32—Means to vary the time of contact of one or more rollers in an ink train
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S101/00—Printing
- Y10S101/45—Sensor for ink or dampening fluid thickness or density
Definitions
- Inking unit whose paint spread is controllable
- the invention relates to an inking unit according to countries ⁇ Ober ⁇ clause of claim 1.
- the European patent specification with the publication number 113 905 describes a method for setting the color application in a color box.
- the known ink fountain has an inking roller and a doctor blade which cooperates with it and is divided into individual sections. Each squeegee section is assigned an adjusting screw and an angle piece which can be actuated by it for changing the distance between the squeegee end and the inking roller.
- the thickness of the ink layer on the inking roller and thus the ink density on the printed paper sheet can be adjusted in sections by actuating the adjusting screws.
- the inking unit according to the invention is characterized by the features stated in the characterizing part of patent claim 1.
- FIG. 1 shows a cross section through an exemplary embodiment of the inking unit according to the invention, the sectional plane being between the side wall (not shown) and the inking unit,
- Fig. 2 shows a part of a lifting roller of the inking unit according to FIGS. 1 and
- FIG. 3 shows the block diagram of a system for measuring and setting the color density values of a printed sheet.
- Fig. 1 shows the cross section of a corner area of an inking unit 1 of a flat printing press, of which only one side wall 2 is visible.
- the inking unit 1 comprises an application roller 3, a pre-roller 4, a friction roller 5, a siphon roller 6 and an ink fountain 7.
- an ink roller 8 is rotatable and a doctor blade 9 is arranged to be adjustable.
- an angle piece 10 is fastened, the angled end 11 of which, with the adjacent wall 12 of the ink fountain 7, forms a groove 13 which is open at the bottom.
- a rod 14 extends between the side wall 2 visible in FIG. 1 and the non-visible side wall of the inking unit 1.
- the ink fountain 7 is inserted into the inking unit 1 such that the rod 14 is located in the groove 13.
- the bottom 15 of the ink fountain 7 is supported on at least two set screws 16, which are screwed into projections 17 of the ink fountain 1.
- a recess 19 with a square cross section is provided in an end face of the shaft 18, into which a square on an axially displaceable and not shown drive shaft of a motor mounted in the side wall of the ink fountain 1, not shown, can be inserted.
- the inking roller 8 is driven in a counterclockwise direction with reference to FIG. 1. Only the lower part of the inking roller 8 dips a little into the ink, not shown.
- the thickness of the ink layer picked up by the ink roller 8 is regulated with the doctor blade 9.
- the lifter roller 6 is divided into a number of sections, e.g. twenty, divided.
- Each of the sections 6 'and 6 ", two of which are shown in FIG. 2, is rotatably mounted on a two-armed lever 22.
- a stepped bolt 23 is fastened to each of the levers 22.
- a roller bearing 24 is attached to the bolt 23 and carries a bushing 25.
- the outer surface of the bushing 25 is covered with an elastic layer 26, preferably made of rubber, to form the section 6 'or 6 "of the lever roller.
- Each lever 22 has a recess approximately in the middle, on the edge region of which a bearing bush 27 is attached.
- a common axis 28 extends through all the bearing bushes 27, about which the levers 22 can be pivoted independently of one another.
- the bearing bushes 27 can, for example, be sliding bushes which have a lining 29 made of a beryllium-copper alloy.
- the bearing bushes 27 also serve as spacers between adjacent levers 22.
- an attachment 30 made of ferromagnetic material is arranged on the lever arm opposite the lifting roller section 6 1 or 6 ".
- the attachment 30 serves as an anchor for an electromagnet 31.
- the electromagnets 31 are each by means of an angled support 32 rigidly connected to a support rod 33 with a rectangular cross-section 33.
- the support rod 33 is attached at its ends to the side wall 2 and to the side wall of the inking unit 1, not shown. It can be seen from FIG. 1 that when the electromagnet 31 is energized in a manner described below, the extension 30 is then attracted by the electromagnet 31 and the lever 22 is pivoted in a clockwise direction with respect to FIG. 1.
- the amount of ink transferred from the inking roller 8 to the rubbing roller 5 through the lifting roller sections 6 1 and 6 ′′ depends on the speed of rotation of the inking roller 8 and the lifting roller portion as well as the time during which the electromagnet 31 is energized.
- the maximum duration during which the electromagnet 31 is excited corresponds to the duration of one revolution of the lifter roller section 6 1 or 6 "in question. If the electromagnet 31 is energized for the entire duration mentioned, the entire jacket surface of the lifter roller section 6 receives 1 or 6 "ink from the inking roller 8 and the maximum amount of ink is transferred to the friction roller 5.
- the electromagnet 31 of the respective lifter roller section 6 'or 6 is only energized for half of the duration mentioned and accordingly only half of the lateral surface of this lifter roller section takes on color the ink roller 8 and accordingly only half the amount of ink is on transfer the friction roller 5. Is energized by changing the time during which the electromagnet 31 ', any intermediate value between zero and maximum amount of ink from the ink roller 8 transferred to the distributor roller 5 were ⁇ the.
- the doctor blade 9 of the zone in question can be adjusted by means of the adjusting screw 21 so that the ink layer on the ink roller 8 becomes thicker.
- a one-armed lever can also be used, in which case the electromagnet 31 must be arranged on the other side of the extension 30 serving as an anchor.
- an electric motor is used which drives an eccentric disk which acts directly on the projection 30.
- a spring (not shown) can be provided, which brings the lever 22 into its rest position, in which the lifter roller sections 6 1 or 6 ′′ rest against the friction roller 5, when the electromagnet 31 is not energized.
- FIG. 3 shows the block diagram of a system for measuring and setting the ink density values of a printing sheet 34 which is located on a measuring station 35.
- this system comprises a control device 36, a color density meter 37, which is connected to the control unit 36 via an interface 38, and measuring section fields 39 arranged on the measuring station 35, each of which has a light-emitting diode 40 and a pushbutton 41 having.
- the measuring section fields 39 divide the printed sheet into a number of sections, which sections the lifter roller zen sections 6 'and 6 "correspond.
- the measured with the ink density meter 37 at the areas of the printed sheet indicated by the measurement section fields 39 ink density measured values via the interface 38 in the control device 36. So that the control device 36 can detect Which measuring section field 39 the received color density measured value belongs to is reported to the control device 36 by actuating the pushbutton 41 via conductor 42. If the received color density measured value is stored in the correct place, the associated light-emitting diode 40 controlled by conductor 43 lights up and the color density is then carried out in the next measuring section field 39.
- the determined color density measured values are stored in a memory (not shown) of the control device 36 'until a new series of measurements is carried out.
- the winding of each of the twenty electromagnets 31 is via one Head of a leader's office 44 connected to a converter (not shown) in the control device 36.
- Each of these converters generates a control pulse to excite the associated electromagnet 31, the duration of the control pulse depending on the stored color density measured value. For example, if the color density measurement value is comparatively small with an average value, the duration of the control pulse comparable size 'is rt.
- the electromagnet 31 remains energized for longer, the associated lifter roller section 6 1 or 6 "lies longer on the inking roller 8 and absorbs more ink, as a result of which a larger amount of ink is transferred to the friction roller 5 after de-energization of the electromagnet 31 becomes.
- the ink application can be carried out automatically as a function of the measured ink density. te regulated and nevertheless it is possible in the case of a flat printing press to quickly and easily replace the ink fountain 15 including the inking roller 8 to change the printing ink. No changes to the ink fountain are necessary for this, but previously known ink fountains can be used without modification.
- the above-described lifter roller 6, which is divided into sections, can also be used advantageously in a printing press in which the ink fountain is an integral part of the printing press. In this case, this has a beneficial effect in a more precise dosage of the paint spread.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Paints Or Removers (AREA)
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT88901784T ATE69580T1 (de) | 1987-03-03 | 1988-03-03 | Farbwerk, dessen farbaufstrich steuerbar ist. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH794/87 | 1987-03-03 | ||
CH79487 | 1987-03-03 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0304445A1 true EP0304445A1 (de) | 1989-03-01 |
EP0304445B1 EP0304445B1 (de) | 1991-11-21 |
Family
ID=4195344
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP88901784A Expired - Lifetime EP0304445B1 (de) | 1987-03-03 | 1988-03-03 | Farbwerk, dessen farbaufstrich steuerbar ist |
Country Status (6)
Country | Link |
---|---|
US (1) | US4987831A (de) |
EP (1) | EP0304445B1 (de) |
JP (1) | JPH01502502A (de) |
AT (1) | ATE69580T1 (de) |
DE (1) | DE3866313D1 (de) |
WO (1) | WO1988006523A1 (de) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DD285051A5 (de) * | 1989-06-22 | 1990-12-05 | Veb Kombinat Polygraph "Werner Lamberz" Leipzig,Dd | Heberfarbwerk fuer rotationsdruckmaschinen |
DE8912194U1 (de) * | 1989-10-13 | 1989-11-23 | MAN Roland Druckmaschinen AG, 6050 Offenbach | Farbwerk |
DE3942525A1 (de) * | 1989-12-22 | 1991-06-27 | Licentia Gmbh | Druckwerk mit farbwerk |
JP3013273B2 (ja) * | 1992-01-10 | 2000-02-28 | アイマー・プランニング株式会社 | 印刷機のインキ供給装置 |
DE19642399B4 (de) * | 1995-10-14 | 2004-04-15 | Techno Roll Co., Ltd., Izumi | Druckfarbenwannenanordnung für eine Druckerpresse |
US6035782A (en) * | 1998-05-01 | 2000-03-14 | Moore U.S.A. Inc. | Selective flexographic printing with movable anilox roll |
JP3008026B1 (ja) * | 1998-11-09 | 2000-02-14 | アイマー・プランニング株式会社 | 印刷機のインキ供給装置 |
CN100343049C (zh) * | 2004-04-17 | 2007-10-17 | 汕头市东源轻工机械厂有限公司 | 胶印机传墨摆辊的摆动控制装置 |
JP2006272750A (ja) * | 2005-03-29 | 2006-10-12 | Aimaa Planning Kk | インキ移し分割ローラユニットおよび印刷機 |
EP2998117A1 (de) * | 2014-09-19 | 2016-03-23 | KBA-NotaSys SA | Farbwerk einer Druckermaschine, Druckmaschine und Verfahren zur Herstellung einer Heberwalze |
IT201700052229A1 (it) * | 2017-05-15 | 2018-11-15 | Graziano Rocchini | Gruppo di inchiostrazione per stampatrice automatica per munizioni per arma da fuoco |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3116688A (en) * | 1959-12-23 | 1964-01-07 | Koppers Co Inc | Ink fountain |
DD104259A1 (de) * | 1973-05-08 | 1974-03-05 | ||
DE2924635A1 (de) * | 1979-06-19 | 1981-01-15 | Gerhard Werner | Farbdosier-vorrichtung fuer buch- und offsetdruckmaschinen |
JPS58990B2 (ja) * | 1980-11-07 | 1983-01-08 | リョービ株式会社 | 印刷機のインキ及び水量自動調整装置 |
JPS58203058A (ja) * | 1982-05-21 | 1983-11-26 | Toshiba Mach Co Ltd | 印刷機のカセツト式インキ供給装置 |
US4607571A (en) * | 1982-12-21 | 1986-08-26 | Dai Nippon Insatsu Kabushiki Kaisha | Method for adjusting an ink fountain in a printing press and ink fountains |
EP0131104A3 (de) * | 1983-07-07 | 1986-07-23 | M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft | Farbdosiereinrichtung für Buch- und Offsetdruckmaschinen |
DE3324448C1 (de) * | 1983-07-07 | 1985-02-28 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Farbdosiereinrichtung für Buch- und Offsetdruckmaschinen |
DE3324445C2 (de) * | 1983-07-07 | 1985-09-12 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Farbdosiervorrichtung an Buch- und Offsetdruckmaschinen |
DE3342459C2 (de) * | 1983-11-24 | 1986-03-13 | Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden | Von Film- auf Heberbetrieb umstellbares Farb- oder Auftragwerk für Rotations-Offset-Druckmaschinen |
DE3344778C1 (de) * | 1983-12-10 | 1985-04-11 | M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach | Farbdosiervorrichtung für das Farbwerk einer Durckmaschine |
DE3543444A1 (de) * | 1985-03-21 | 1986-10-30 | Felix Corippo Brunner | Verfahren und regelvorrichtung zur erzielung eines gleichfoermigen druckresultats an einer autotypisch arbeitenden mehrfarbendruckmaschine |
-
1988
- 1988-03-03 US US07/286,955 patent/US4987831A/en not_active Expired - Fee Related
- 1988-03-03 AT AT88901784T patent/ATE69580T1/de active
- 1988-03-03 JP JP63501796A patent/JPH01502502A/ja active Pending
- 1988-03-03 WO PCT/CH1988/000053 patent/WO1988006523A1/de active IP Right Grant
- 1988-03-03 DE DE8888901784T patent/DE3866313D1/de not_active Expired - Fee Related
- 1988-03-03 EP EP88901784A patent/EP0304445B1/de not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO8806523A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0304445B1 (de) | 1991-11-21 |
JPH01502502A (ja) | 1989-08-31 |
US4987831A (en) | 1991-01-29 |
WO1988006523A1 (en) | 1988-09-07 |
DE3866313D1 (de) | 1992-01-02 |
ATE69580T1 (de) | 1991-12-15 |
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