EP0365949B1 - Heberwalzensteuerung an Farbwerken von Druckmaschinen - Google Patents

Heberwalzensteuerung an Farbwerken von Druckmaschinen Download PDF

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Publication number
EP0365949B1
EP0365949B1 EP89119107A EP89119107A EP0365949B1 EP 0365949 B1 EP0365949 B1 EP 0365949B1 EP 89119107 A EP89119107 A EP 89119107A EP 89119107 A EP89119107 A EP 89119107A EP 0365949 B1 EP0365949 B1 EP 0365949B1
Authority
EP
European Patent Office
Prior art keywords
roller
lever
arm
oscillating
cam
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 - Lifetime
Application number
EP89119107A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0365949A2 (de
EP0365949A3 (en
Inventor
Peter Hummel
Roland Höll
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manroland AG
Original Assignee
MAN Roland Druckmaschinen AG
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 Roland Druckmaschinen AG filed Critical MAN Roland Druckmaschinen AG
Priority to AT89119107T priority Critical patent/ATE86549T1/de
Publication of EP0365949A2 publication Critical patent/EP0365949A2/de
Publication of EP0365949A3 publication Critical patent/EP0365949A3/de
Application granted granted Critical
Publication of EP0365949B1 publication Critical patent/EP0365949B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the invention relates to a lifter roller control on inking units of printing machines according to the preamble of the first claim.
  • a lifter roller control of the type mentioned is known from DE-AS 1 248 682 B.
  • the fork-shaped lever used there is connected to a coupling and the coupling is in turn connected to the roller lever, the articulation point being adjustable.
  • This design allows the jack roller to be adjusted well and away. In operation, however, considerable shocks continue to occur at the critical point of the pendulum movement of the lifting roller, namely when it is put on or lifted off from the duct roller and the friction roller. It is also disadvantageous that when the lifter roller diameter changes, e.g. As a result of wear and tear, different installation times and thus also changing ink lifter strip widths can be caused.
  • the invention has a number of advantages over the prior art. All inaccuracies of the lifter roller control are compensated for by the movement rest. The result is constant, parallel inking strips with constant, minimal impact speeds of the lifter roller on the ductor roller and the friction roller with changing lifter roller, ductor roller and friction roller diameters.
  • the ink lifter strips can be reproduced exactly from printing unit to printing unit, since the adjustment of the lifting roller to the duct roller and the distributor roller automatically results in a new adjustment. Thus, deviations in diameter of the lifting roller of approx.
  • the duct roller 2 and the friction roller 3 are mounted in side walls 23 in the machine frame.
  • a roller lever 17 is pinned to a shaft 1 and a forked lever 5 is pinned to the left and right between the side walls 23.
  • a rocker arm 6 is mounted around the shaft 1. The arm of the rocker arm 6 is resiliently connected to the fork-shaped lever 5.
  • the roller lever 17 with cam roller 19 is pressed by means of a compression spring 21 via a spring rod 18 onto the cam of a cam disk 20, two curves may also be usable if the width of the ink strip should be adjusted in a known manner by the second curve.
  • the compression spring 21 is supported on a spring support 22 mounted in the side walls 23. In this way it is ensured that when the curve of the cam 20 rotates, the shaft 1 executes an oscillating movement in the size of the pivoting angle 25.
  • the lifter roller 4 is received in the rocker arm 6 via roller bearings.
  • the arm of the rocker arm 6 is mutually alternately with the fork-shaped lever 5 by adjusting screws 15 arranged opposite one another in the fork-shaped lever 5; 16 non-positively connected by the resilient buffers 7, 9, 11, 13; 8, 10, 12, 14 are supported.
  • the adjusting screws 15, 16 are used for the basic setting of the lifting roller 4 to the duct roller 2 and to the friction roller 3.
  • the adjusting roller 15 is used to set the elevator roller 4 to the duct roller 2.
  • the jack roller 4 is adjusted to the friction roller 3 with the adjusting screw 16.
  • the gap 24 ' is only symbolic, that is, not exactly drawn in Fig. 1 to avoid drawing another figure.
  • the gap 24 'forms with respect to FIG. 1 alternating contact of the parts 9, 16 and 10, 15 with the rocker arm 6 also mirror image of the gap 24 with the approach of the lifting roller 4 to the friction roller 3.
  • the gap 24, 24 ' With the largest diameter of the rollers 2 to 4, the gap 24, 24 'is largest, but the rollers 2 to 4 are the result of wear or regrinding smaller, the gap 24, 24 'is correspondingly smaller. It follows that the lifter roller control works until there is no gap 24, 24 '. Only then do the conditions occur, as are known from the prior art.
  • the gap 24, 24 'between the adjusting screws 15, 16 and the arm of the rocker arm 6 should be chosen equal to the amount of permissible wear of the rubber layer of the jack roller 4. Since the basic setting of the lifting roller 4 to the duct roller 2 and to the friction roller 3 always takes place when the cam roller 19 is set to the minimum or maximum radius of the cam 20 curve, the cam 20 curve always generates a minimum angular velocity of the roller lever 17 in this area, which follows that a minimum impact speed of the jack roller 4 and accordingly a smallest impact impact on the duct roller 2 and the friction roller 3. If the minimum or maximum radius of the cam roller 19 is left when the curve of the cam 20 rotates, the lifting roller 4 is immediately lifted off the duct roller 2 or the friction roller 3.
  • the resilient buffers 7, 9, 11, 13; 8, 10, 12, 14 are brought into a unique basic setting for the rocker arm 6, the setting being carried out in the position in which the roller lever 17 has carried out half the curve stroke.
  • the resilient buffers 7, 9, 11, 13; 8, 10, 12, 14 set so that their bolts 11, 12 just touch the rocker arm 6 with the ball-shaped bolt end.
  • This position is secured by means of lock nuts 13, 14, while, as already described, the rocking lever 6 is taken along alternately via the adjusting screws attached to the fork-shaped lever 5 15, 16 takes place.
  • Has the fork-shaped lever 5 half the pivot angle 25, ie half the curve stroke there is a short rest of the rocker arm 6 until the respective gap 24, 24 'is bridged between the adjusting screws 15, 16 and the rocker arm 6.
  • the lifting roller control according to the invention copes with diameter deviations of the lifting roller 4 of +/- 1.5 mm and small diameter differences between the duct roller 2 and the friction roller 3 without changing the operating conditions. All inaccuracies in the lifter roller control are compensated for by the locking mechanism.
  • the ink lifter strips can also be set identically, ie reproducibly, from printing unit to printing unit by means of known suitable devices, for example a second curve which can be rotated with respect to the first curve.
  • the impact impact of the lifter roller 4 on the duct roller 2 and the friction roller 3 is kept as minimal as possible.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP89119107A 1988-10-27 1989-10-14 Heberwalzensteuerung an Farbwerken von Druckmaschinen Expired - Lifetime EP0365949B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT89119107T ATE86549T1 (de) 1988-10-27 1989-10-14 Heberwalzensteuerung an farbwerken von druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3836580 1988-10-27
DE3836580A DE3836580A1 (de) 1988-10-27 1988-10-27 Heberwalzensteuerung an farbwerken von druckmaschinen

Publications (3)

Publication Number Publication Date
EP0365949A2 EP0365949A2 (de) 1990-05-02
EP0365949A3 EP0365949A3 (en) 1990-10-17
EP0365949B1 true EP0365949B1 (de) 1993-03-10

Family

ID=6366014

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89119107A Expired - Lifetime EP0365949B1 (de) 1988-10-27 1989-10-14 Heberwalzensteuerung an Farbwerken von Druckmaschinen

Country Status (6)

Country Link
US (1) US4960053A (enrdf_load_stackoverflow)
EP (1) EP0365949B1 (enrdf_load_stackoverflow)
JP (1) JPH074931B2 (enrdf_load_stackoverflow)
AT (1) ATE86549T1 (enrdf_load_stackoverflow)
DE (2) DE3836580A1 (enrdf_load_stackoverflow)
ES (1) ES2039796T3 (enrdf_load_stackoverflow)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2938491B2 (ja) * 1990-01-10 1999-08-23 株式会社小森コーポレーション 印刷機のインキ装置
DE19507903C1 (de) * 1995-03-07 1996-07-04 Roland Man Druckmasch Heberantrieb für eine Druckmaschine
DE19701218B4 (de) * 1997-01-16 2006-11-23 Heidelberger Druckmaschinen Ag Hebwalze für Rotationsdruckmaschinen
DE102004062876B4 (de) * 2004-12-21 2012-07-12 manroland sheetfed GmbH Einstellbare Lagerung einer Heberwalze im Farbwerk einer Druckmaschine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1248682B (de) * 1967-08-31 VEB Druckmaschmenwerk Planeta Radebeul Heber Schaltgetriebe ?n Farbwerken von Druckmaschinen insbesondere Offsetdruckmaschinen
FR799110A (fr) * 1935-03-01 1936-06-06 Anciens Etablissements L Chamb Perfectionnements à la prise de l'encre dans les procédés d'impression
DE2105622A1 (de) * 1970-02-13 1971-09-23 Polygraph Leipzig Kom Polygrap Vorrichtung zur Steuerung von Hebern an Färb- oder Feuchtwerken von Druckmaschinen
GB1350493A (en) * 1971-08-23 1974-04-18 Strachan & Henshaw Ltd Ink feed
DE3127647A1 (de) * 1981-07-13 1983-01-27 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum transport von farbe oder feuchtmittel
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

Also Published As

Publication number Publication date
EP0365949A2 (de) 1990-05-02
ES2039796T3 (es) 1993-10-01
US4960053A (en) 1990-10-02
DE58903722D1 (de) 1993-04-15
JPH02172743A (ja) 1990-07-04
JPH074931B2 (ja) 1995-01-25
EP0365949A3 (en) 1990-10-17
ATE86549T1 (de) 1993-03-15
DE3836580A1 (de) 1990-05-03
DE3836580C2 (enrdf_load_stackoverflow) 1990-08-23

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