WO1991005661A1 - Systeme d'encrage d'une imprimante a rouleau encreur changeable - Google Patents

Systeme d'encrage d'une imprimante a rouleau encreur changeable Download PDF

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Publication number
WO1991005661A1
WO1991005661A1 PCT/EP1990/001694 EP9001694W WO9105661A1 WO 1991005661 A1 WO1991005661 A1 WO 1991005661A1 EP 9001694 W EP9001694 W EP 9001694W WO 9105661 A1 WO9105661 A1 WO 9105661A1
Authority
WO
WIPO (PCT)
Prior art keywords
lever
inking
roller
pivot axis
stroke
Prior art date
Application number
PCT/EP1990/001694
Other languages
German (de)
English (en)
Inventor
Claus Simeth
Original Assignee
Man Miller Druckmaschinen Gmbh
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Man Miller Druckmaschinen Gmbh filed Critical Man Miller Druckmaschinen Gmbh
Priority to JP2514403A priority Critical patent/JPH07102697B2/ja
Publication of WO1991005661A1 publication Critical patent/WO1991005661A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/15—Devices for moving vibrator-rollers

Definitions

  • the invention relates to an inking unit of a printing press with an oscillating, rotation-driven friction roller as a drive for an application roller, which is also circumferential and also oscillating and driven to rotate.
  • Such inking units with oscillating application rollers which are axially displaced by the axial stroke movement of the distribution roller without a separate oscillation drive and at the same time driven to rotate by the distribution roller, have become known in numerous embodiments.
  • a complicated gear is provided for the drive from the friction roller to the applicator roller.
  • this is only possible when the machine is at a standstill and the conversion requires a noticeable amount of work, combined with a corresponding downtime of the machine.
  • the invention avoids these disadvantages. It is based on the task of proposing an inking unit with the features mentioned at the beginning, in which the traversing stroke is infinitely adjustable, even while the machine is running. To achieve this object, the invention is characterized in that the drive takes place via a lever which is pivotally mounted on both rollers and on which a pivot axis is formed between the two bearings, the position of which is adjustable between the two bearings.
  • the position of the pivot axis between the two bearings of the lever on the two rollers thus determines the transmission ratio of the drive between zero and a maximum value.
  • This position of the swivel axis can also be adjusted during operation of the machine by means of a suitable mechanism, so that the operator can, depending on the respective printed image, adjust the distributor stroke while the machine is running, so that unusually little waste is produced. This adjustment is infinitely possible and can therefore be done very sensitively.
  • the friction roller and the applicator roller move in opposite directions so that a double stroke is set at a transmission ratio of 1: 1, which may also have advantages. As mentioned, the stroke can be continuously adjusted from zero to a maximum.
  • An important embodiment is characterized in that the position of the pivot axis of the lever is motor-controlled controlled by a scanner of the inking unit.
  • the scanner of the inking unit has a subroutine which determines the necessity and the size of the stroke for the application roller and forwards this data to an adjustment gear.
  • This arrangement results in a significant reduction in set-up times.
  • a decision as to whether and how large the lateral rubbing stroke must be can only be made after the trial deductions are taken.
  • no change in the size of the stroke of the applicator roller can be made while the machine is running.
  • a machine stop during the printing process always means a disturbance of the ink / water balance and thus fluctuations in the printing and thus an increased amount of waste.
  • a constructive embodiment of the invention is characterized in that a bearing forming the pivot axis of the lever is adjustable in a slot of the lever via a driven spindle. You turn the spindle in one direction or the other and this causes a nut sitting on the spindle to move in the slot in one direction or the other, which results in the desired adjustment of the pivot axis of the lever.
  • Fig. 1 schematically a view of the important
  • a friction roller 1 is axially displaced in the direction indicated by the double arrow 2 in its bearings indicated at position 3. At the same time, the friction roller is driven to rotate.
  • An applicator roller 4 bears against the rubbing roller. This should also be shifted axially via a drive to be described in more detail. A bearing of the applicator roller is indicated at position 5. It should be mentioned that the applicator roller is also driven to rotate by the friction roller because the two rollers abut each other.
  • the drive essentially consists of a lever 6, the ends of which are pivotably mounted both on the shaft of the friction roller 1 and on the shaft of the applicator roller 2.
  • a roller is attached to both ends of the lever, which engages between rings on the shafts of the roller in question in such a way that the lever can be pivoted in the paper plane of FIG. 1 without the relevant shaft of roller 1 or 4 to take with you on this curved path.
  • the lever has a pivot axis 8 between the two pivot bearings 7 formed at the ends of the lever 6.
  • the lever thus acts as a two-armed lever which can be pivoted in the plane of FIG. 1 about the axis 8 in the direction of arrow 9.
  • the lever 6 is pivoted clockwise and the application roller 4 is thereby pivoted to the left into the Dashed position in Fig. 1 axially shifted.
  • the pivot axis 8 is located centrally between the two pivot bearings 7, 7, the displacement path 10 of the friction roller 1 corresponds to the displacement path 21 of the applicator roller 4.
  • the ratio of these displacement paths can be adjusted, however, and all that is required is the position of the pivot axis 8 along the Adjust lever 6 accordingly. If the pivot axis 8 is at the location of the lower pivot bearing 7, the stroke of the applicator roller 4 is zero.
  • Fig. 2 shows details of this drive with adjusting mechanism. It should be mentioned that the friction roller and the application roller are only indicated in their cores in FIG. 2; in reality, their circumferences abut one another, as can be seen in FIG. 1.
  • a spindle 11, on which a spindle nut 12 sits, which is extended downwards to the bearing 18 of the pivot axis 8, serves for the drive for adjusting the pivot axis 8. Wildly the spindle in its bearing 13 rotated in one or the other direction of rotation, the nut 12 moves in the direction of the arrow 14 and thus also the bearing 18, which runs in an elongated hole 15 of the lever 6.
  • the bearing 7 engaging the friction roller 1 is designed as a spherical bearing in order to to be able to accommodate any canting.
  • the lower bearing 7 is equipped with a driving roller 16.
  • rollers 1 and 4 as a whole are axially displaced in their bearings 3 and 5 and a separation of the order
  • the stroke of the application roller 4 • J E can, if desired, be made stronger than that of the friction roller 1, depending on where the pivot axis 8 of the lever 6 is placed. If the swivel axis is in the middle, the stroke is doubled. This increased stroke thus results in even smoother transitions between more and 20 less color on the printed image.
  • An already existing scanner determines the necessity and the size of the stroke for the application roller in a subroutine. This data is forwarded to the adjustment gear 25. There they are converted, for example, into a corresponding rotation of the spindle 11 or also into the actuation of another drive for the adjustment of the swivel axis 8.
  • the friction stroke can, therefore, be set immediately by motor via the scanner data, and 0 zv / ar in a fine motor setting from the control desk. This is also a great advantage compared to the known systems, in which the stroke can only be adjusted on the roller itself.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Friction Gearing (AREA)

Abstract

L'invention concerne un système d'encrage d'une imprimante avec un rouleau distributeur (1) changeable, entraîné en rotation, servant d'entraînement à un cylindre encreur (4) reposant contre sa périphérie. L'entraînement s'effectue par l'intermédiaire d'un levier à deux bras (6) qui est monté pivotant sur l'un des deux cylindres. L'axe de pivotement (8) du levier (6) peut être réglé de sorte que le mouvement axial du cylindre distributeur (1) soit translaté en un mouvement axial du rouleau encreur (4). La course de distribution peut être réglée en continu même lorsque la machine fonctionne.
PCT/EP1990/001694 1989-10-12 1990-10-10 Systeme d'encrage d'une imprimante a rouleau encreur changeable WO1991005661A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2514403A JPH07102697B2 (ja) 1989-10-12 1990-10-10 変彩着けローラーを有する印刷機のインク装置

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEP3934067.8 1989-10-12
DE3934067A DE3934067C2 (de) 1989-10-12 1989-10-12 Farbwerk einer Druckmaschine mit einer changierenden Auftragwalze

Publications (1)

Publication Number Publication Date
WO1991005661A1 true WO1991005661A1 (fr) 1991-05-02

Family

ID=6391319

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1990/001694 WO1991005661A1 (fr) 1989-10-12 1990-10-10 Systeme d'encrage d'une imprimante a rouleau encreur changeable

Country Status (6)

Country Link
EP (1) EP0425855B1 (fr)
JP (1) JPH07102697B2 (fr)
AT (1) ATE97611T1 (fr)
DE (2) DE3934067C2 (fr)
ES (1) ES2047797T3 (fr)
WO (1) WO1991005661A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE139802C (fr) *
EP0047861A1 (fr) * 1980-09-13 1982-03-24 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif d'encrage comprenant un cylindre d'encrage d'un mouvement de va-et-vient
DE3638826A1 (de) * 1986-11-13 1988-05-26 Roland Man Druckmasch Lagerung fuer changierende auftragwalzen von druckmaschinen

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3243582C2 (de) * 1982-11-25 1984-09-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Verändern des axialen Hubes einer Verreibwalze in einer Druckmaschine
DD232882A1 (de) * 1984-12-27 1986-02-12 Polygraph Leipzig Verreibwalze in druckmaschinen
CS250525B1 (en) * 1985-09-17 1987-04-16 Mojmir Travnicek Device for inking unit's rubbing-down rollers' axial shifting
JPS63264352A (ja) * 1987-04-22 1988-11-01 Komori Printing Mach Co Ltd 輪転印刷機のインキ振り装置
JPS6445641A (en) * 1987-08-17 1989-02-20 Komori Printing Mach Swing phase regulator for swing roller

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE139802C (fr) *
EP0047861A1 (fr) * 1980-09-13 1982-03-24 M.A.N.-ROLAND Druckmaschinen Aktiengesellschaft Dispositif d'encrage comprenant un cylindre d'encrage d'un mouvement de va-et-vient
DE3638826A1 (de) * 1986-11-13 1988-05-26 Roland Man Druckmasch Lagerung fuer changierende auftragwalzen von druckmaschinen

Also Published As

Publication number Publication date
ATE97611T1 (de) 1993-12-15
JPH07102697B2 (ja) 1995-11-08
EP0425855A1 (fr) 1991-05-08
ES2047797T3 (es) 1994-03-01
DE3934067A1 (de) 1991-04-25
JPH04500048A (ja) 1992-01-09
EP0425855B1 (fr) 1993-11-24
DE59003604D1 (de) 1994-01-05
DE3934067C2 (de) 1994-06-16

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