EP0195727B1 - Farbwerk mit individuell einstellbaren Dosierelementen - Google Patents
Farbwerk mit individuell einstellbaren Dosierelementen Download PDFInfo
- Publication number
- EP0195727B1 EP0195727B1 EP86400599A EP86400599A EP0195727B1 EP 0195727 B1 EP0195727 B1 EP 0195727B1 EP 86400599 A EP86400599 A EP 86400599A EP 86400599 A EP86400599 A EP 86400599A EP 0195727 B1 EP0195727 B1 EP 0195727B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- metering
- segments
- ink
- inking roller
- segment
- 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
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
-
- 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 present invention relates to an inkwell with metering segments individually adjusted for a printer, according to the preamble of claim 1 (DE-A-3 047 689).
- Inkwells for printing machines which comprise a container containing ink, this container being delimited, on one side, by a horizontal ink cylinder driven in rotation, on the opposite side, by a body extending parallel to the ink cylinder , and laterally, by two vertical flanges.
- the body carries, in the immediate vicinity of the peripheral surface of the ink cylinder, a scraper blade parallel to the ink cylinder and which is formed by a succession of metering segments adjacent to each other, and the front faces of which are delimited, on the side of the ink cylinder, by scraping edges which extend parallel to the ink cylinder, at a small distance from the peripheral surface thereof, this distance being able to be adjusted individually for each metering segment.
- the end portions of the metering segments which are opposite to the front faces carrying the scraping edges are fixed to the body of the inkwell.
- the dosing segments are actuated individually by pushers extending through the body and which are controlled, for example, by adjusting levers or motorized assemblies.
- Each of these pushers exerts a push on the mobile end part of the metering segment associated with it.
- Such an inkwell is described for example in French patent application N 83 01945.
- each dosing segment forms a lever of the first kind comprising a first lever arm, of small length, between the scraping edge of the segment dispenser and the pivot axis thereof, and a second lever arm, of great length, between the point of application of the force of the plunger on the metering segment and the pivot axis.
- Inkwells of this type known to date have many drawbacks such as the risk of ink penetration between the metering segments and between them and the common support block or the pushers. Seals are placed, in certain places where this is possible, without however being able to avoid this penetration by clearances between the metering segments. This thin layer ink dries, dirty and prevents the inkwell working in good conditions by making its maintenance very difficult.
- the present invention aims to remedy these drawbacks by providing a particularly simple design inkwell, eliminating all the intermediate elements between pushers and segments and making it possible to obtain very precise precision in the adjustment of the positions of the individual metering segments.
- this inkwell with metering segments of the type mentioned above is characterized in that the common pivot axis of the metering segments is constituted by a rod held clamped between aligned horizontal grooves of the various adjacent metering segments, on the one hand , and a horizontal groove of a support for the dosing segments secured to the body of the inkwell.
- each pusher can work not only by pushing on the metering segments, but possibly in traction on them, which allows, by simple and known means, possibly to remove the springs placed between the common block and the metering segments.
- the inkwell according to the invention which is shown in the drawing comprises an ink cylinder 1 driven in rotation in the direction of the arrow f, that is to say in the anticlockwise direction, a body 2 extending parallel lying at the axis of the cylinder 1 and two lateral and vertical flanges 3.
- the cylinder 1, the body 2 and the two flanges 3 constitute a container containing an ink reserve 4 intended to form, on the peripheral surface of the ink cylinder 1 , a film 5 of adjustable thickness.
- the inkwell comprises, for adjusting the thickness of the film 5, a succession of individual metering segments 6 which are substantially coplanar, both on their anterior faces and on their upper faces, and are juxtaposed with each other in a direction parallel to the axis of the ink cylinder 1, in a way forming a scraper blade.
- Each of these individual dosing segments 6 is constituted by a plate of parallelepiped shape, which is kept applied against a common support block 7, by means of a spring 8 passing through holes drilled in the dosing segments 6 and the support block 7
- This support block 7 is in the form of a parallelepiped and it is fixed on the body 2 and more particularly in a rebate 9 thereof, by means of screws 11.
- the rebate 9 has a lower bearing face 9a and a perpendicular front face 9b against which the support block 7 is pressed.
- Each metering segment 6 comprises an upper front face 6a which is delimited, on the side of the ink cylinder 1, by a scraping edge 6b situated in the immediate vicinity of the peripheral surface of this cylinder. This scraping edge 6b can be sharp or else it can form a chamfer of small width.
- the various metering segments 6 are biased towards the common support block 7 by means of their fixing springs 8.
- the ends of each spring 8 can be respectively hooked to the common support block 7 and to the associated metering segment 6 by any appropriate means. , for example by means of axes 8a and 8b housed in holes made respectively in the common support block 7 and the metering segment 6.
- Each metering segment 6 has, in the upper part of its left internal face 6c, that is to say above the spring 8, a horizontal groove 6d, with a V-shaped cross section, all the horizontal grooves 6d being located at the same height and therefore aligned. Opposite the groove 6d of the various metering segments 6 extends, in the upper part of the right external face of the support 7, a horizontal groove 7b. Between this common groove 7b on the one hand and the aligned grooves 6d of the various metering segments 6 on the other hand is housed a rod 13 constituting a common pivot axis for all the individual metering segments 6.
- each metering segment 6 is pressed, under the action of the spring 8 tending to rotate the segment 6 in a clockwise direction around the rod 13, against the end an adjustment pusher 14.
- Each pusher 14 is axially movable in a hole 15 drilled right through in the body 2 and in a coaxial hole 16, forming a guide, drilled right through in the lower part of the common support block 7.
- the pusher 14 protrudes outside with respect to the hole 16 and it bears at this point, at its end, against the internal face 6c of the segment 6, that is to say that which faces towards the support block 7.
- the other end of the pusher 14 is actuated in translation by any means such as an adjustment eccentric which can be driven in rotation, in a manner known per se, by a lever for example, or by any other manual or motorized device.
- a control device 17 of the motorized type comprising a motor 18 and a movement transmission mechanism 19, is shown mounted outside the body 2, in FIG. 1.
- the rotation of the motor 18, in one direction or in the 'other therefore causes an axial movement of the pusher 14 which thus pushes more or less the end part of the individual metering segment 6 with which it is associated.
- the latter which in a way constitutes a lever of the first kind, pivots around the upper axis formed by the rod 13.
- all of the metering segments 6 are advantageously pivotally mounted on a support block 7 which is in one piece and which is fixed interchangeably in the rebate 9 of the body 2.
- This arrangement thus makes it possible to replace the whole of the support block 7 and of the metering segments 6 which it carries, when these metering segments must themselves be replaced by other metering segments, following a prolonged operation having resulted in a wear of the scraping edges 6b.
- the pivot axis of the metering segments 6 is advantageously embodied by the rod 13 housed in facing grooves provided in the support block 7 and in the dosing segments 6.
- each pusher 14 could also be coupled to the associated metering segments by means of a connection mechanism ensuring positive control of the slack pivoting elements of the metering segment 6 in both directions, to permanently maintain contact between the metering segment 6 and the end of the plunger 14.
- each metering segment 6 has, on one of its lateral faces, a slight clearance 6e, of a few tenths of a millimeter in depth or in width in the direction of alignment of the metering segments, therefore in a direction parallel to the 'axis of the cylinder and the hinge axis 13 ( Figure 3).
- Each clearance extends only below the hinge axis 13 and it does not reach the upper face 6a of the segment which constitutes an extension of the bottom of the inkwell towards the cylinder 1.
- This clearance 6e makes it possible to reduce the friction between the segments 6, therefore the force on each pusher 14, while ensuring the tightness with respect to the ink between the different segments 6 because the upper parts which are not released, lack the clearance 6e, rub against each other.
Landscapes
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Ink Jet (AREA)
- Particle Formation And Scattering Control In Inkjet Printers (AREA)
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT86400599T ATE39885T1 (de) | 1985-03-22 | 1986-03-21 | Farbwerk mit individuell einstellbaren dosierelementen. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR8504283 | 1985-03-22 | ||
FR8504283A FR2579136B1 (fr) | 1985-03-22 | 1985-03-22 | Encrier a segments doseurs regles individuellement pour une imprimeuse |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0195727A1 EP0195727A1 (de) | 1986-09-24 |
EP0195727B1 true EP0195727B1 (de) | 1989-01-11 |
Family
ID=9317472
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP86400599A Expired EP0195727B1 (de) | 1985-03-22 | 1986-03-21 | Farbwerk mit individuell einstellbaren Dosierelementen |
Country Status (6)
Country | Link |
---|---|
US (1) | US4711176A (de) |
EP (1) | EP0195727B1 (de) |
JP (1) | JPS61220850A (de) |
AT (1) | ATE39885T1 (de) |
DE (1) | DE3661700D1 (de) |
FR (1) | FR2579136B1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9112032U1 (de) * | 1991-09-23 | 1993-01-28 | Zimmer, Johannes, Klagenfurt, Kärnten | Rakelgerät |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5127326A (en) * | 1991-04-26 | 1992-07-07 | Cra-Tek Industrial Controls, Inc. | Ink key control apparatus |
JP2007237539A (ja) * | 2006-03-08 | 2007-09-20 | Komori Corp | 印刷機のインキ壷装置 |
CN102009524B (zh) | 2009-07-20 | 2014-07-23 | 海德堡印刷机械股份公司 | 印刷机的墨斗的配量装置以及用于印刷机的墨斗 |
CN101954784B (zh) | 2009-07-20 | 2014-01-01 | 海德堡印刷机械股份公司 | 印刷机的墨斗及其配量装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3699888A (en) * | 1971-09-13 | 1972-10-24 | North American Rockwell | Composite fountain blade construction for remote ink control system |
US4170177A (en) * | 1977-04-07 | 1979-10-09 | Toshiba Kikai Kabushiki Kaisha | Printing machine inking device with plurality of cam levers |
JPS5692068A (en) * | 1979-12-27 | 1981-07-25 | Toshiba Mach Co Ltd | Controller for discharge of ink |
DE3033997A1 (de) * | 1980-09-10 | 1982-04-15 | Koenig & Bauer AG, 8700 Würzburg | Farbkasten fuer druckmaschinen |
DD201007A1 (de) * | 1981-08-31 | 1983-06-29 | Arndt Jentzsch | Einrichtung zum einstellen des farbmessers an farbkaesten von druckmaschinen |
DE3203500C2 (de) * | 1982-02-03 | 1988-03-03 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Farbmesser und eine Einstellvorrichtung für ein Farbmesser |
DE3239259C2 (de) * | 1982-10-23 | 1985-04-11 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg | Vorrichtung zum zonenweisen Dosieren von Farbe auf der Farbkastenwalze eines Farbwerkes für Druckmaschinen |
FR2540434A1 (fr) * | 1983-02-08 | 1984-08-10 | Chambon Machines | Encrier a segments doseurs regles individuellement pour une imprimeuse |
-
1985
- 1985-03-22 FR FR8504283A patent/FR2579136B1/fr not_active Expired
-
1986
- 1986-03-20 JP JP61060994A patent/JPS61220850A/ja active Granted
- 1986-03-20 US US06/841,857 patent/US4711176A/en not_active Expired - Lifetime
- 1986-03-21 AT AT86400599T patent/ATE39885T1/de active
- 1986-03-21 EP EP86400599A patent/EP0195727B1/de not_active Expired
- 1986-03-21 DE DE8686400599T patent/DE3661700D1/de not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9112032U1 (de) * | 1991-09-23 | 1993-01-28 | Zimmer, Johannes, Klagenfurt, Kärnten | Rakelgerät |
Also Published As
Publication number | Publication date |
---|---|
EP0195727A1 (de) | 1986-09-24 |
US4711176A (en) | 1987-12-08 |
FR2579136A1 (fr) | 1986-09-26 |
JPH0572875B2 (de) | 1993-10-13 |
JPS61220850A (ja) | 1986-10-01 |
DE3661700D1 (en) | 1989-02-16 |
ATE39885T1 (de) | 1989-01-15 |
FR2579136B1 (fr) | 1988-03-11 |
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