EP0081187B1 - Vorrichtung zum Druckmittelaustausch zwischen, in Walzenlängsrichtung zueinander versetzten Zonen im Druckwek einer Rotationsdruckmaschine - Google Patents

Vorrichtung zum Druckmittelaustausch zwischen, in Walzenlängsrichtung zueinander versetzten Zonen im Druckwek einer Rotationsdruckmaschine Download PDF

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Publication number
EP0081187B1
EP0081187B1 EP82111066A EP82111066A EP0081187B1 EP 0081187 B1 EP0081187 B1 EP 0081187B1 EP 82111066 A EP82111066 A EP 82111066A EP 82111066 A EP82111066 A EP 82111066A EP 0081187 B1 EP0081187 B1 EP 0081187B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
rollers
printing
cylinders
roller
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
Application number
EP82111066A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0081187A1 (de
Inventor
Willi Jeschke
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger 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 Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0081187A1 publication Critical patent/EP0081187A1/de
Application granted granted Critical
Publication of EP0081187B1 publication Critical patent/EP0081187B1/de
Expired 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
    • 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
    • Y10S101/34—Means to agitate ink in a reservoir

Definitions

  • the invention relates to a device for the exchange of pressure medium in the longitudinal direction of the roller in the printing unit of a rotary printing press according to the preamble of the respective patent claim 1.
  • This phenomenon has its cause, for. B. that usually different width substrates are processed.
  • the width of the printing press and therefore the length of the inking and dampening unit rollers as well as the printing unit cylinders must be matched to the largest possible sheet or paper web width.
  • the rollers and cylinders are usually moistened across their entire width. This almost inevitably leads to an excess of dampening solution at the edge areas of the rollers when printing on narrower sheets or web widths. This usually results in the formation of an ink-water emulsion that builds up at the edge areas mentioned that are not used for printing.
  • DE-AS 3 014 144 should also be mentioned.
  • a device for applying a liquid to the plate cylinder of a rotary printing press with several parallel rollers is described, which is characterized in that two obliquely extending guide rods are arranged one above the other in axially parallel planes between two axially parallel deflecting rollers and that a conveyor belt in the form of a closed loop with its upper strand at least once spirally around the upper guide rod and with the lower strand at least once spirally around the lower guide rod and for the respective reversal of direction around corresponding deflecting rollers, so that when the deflecting rollers are turned on rollers rotating in the same direction, the liquid is transported at an angle the first roller to the second roller.
  • Such a device neither enables axial pressure medium transport on the same roller, nor is it suitable for rollers in contact, since it can only connect rollers with the same direction of rotation. Furthermore, the risk of contamination of the tape is a major disadvantage, since it cannot be prevented; that the pressure medium gets stuck under the belt.
  • a device for exchanging pressure medium is described there, with rotary bodies in the form of disks being provided, the axes of rotation of which run parallel to the rollers of the printing unit and whose end faces serving for the exchange of pressure medium contact the rollers of the printing unit.
  • a-b a displacement of the pressure medium within a certain range (a-b), which is comparable to the effect of distribution rollers, is possible, but not a targeted transport of pressure medium from or to certain zones on the roller in its longitudinal direction.
  • the chain (row) of the motor-driven disks must not be interrupted for trituration. It is therefore also not possible to transport pressure medium between two disks or zones separated by a free space in the longitudinal direction of the roll.
  • Claim 6 and 7 show two further possible solutions to the underlying task. Due to the unequal peripheral speeds of the rotating surfaces, differential speeds result upon contact with the rollers, which in a particularly advantageous manner also result in a rubbing acting in the circumferential direction.
  • the pressure medium can be exchanged both on the same roller and on other rollers whose direction of rotation is the same or opposite.
  • Claim 3 shows a further solution to the underlying problem. Due to the uneven peripheral speeds of the rotating surfaces, differential speeds result when they come into contact with the rollers, which in a particularly advantageous manner also result in a friction that acts in the peripheral direction.
  • the device according to the invention is used in an inking unit.
  • the embodiments shown in Figures 1, 2 and 3 are suitable for the pressure medium exchange on the same inking roller.
  • the two tapered rollers 3 are placed against one another in accordance with their taper angle. Both tapered rollers 3 are held by a Y-shaped support arm 6, the spread angle of which is 90 °.
  • a journal 9 is rotatably mounted in the two branches 7 of the support arm 6 machined holes 8.
  • a pin 10 serves as an anti-rotation device.
  • Said journal 9 serve to support the two tapered rollers 3, with corresponding bearing bushes 11 being provided.
  • the position of the tapered rollers 3 is fixed via spacer rings 12.
  • the support arm 6 is mounted on a crossbar 15 so as to be longitudinally displaceable. The same is rotatable about its longitudinal axis 16.
  • a clamping screw 17 arranged on the underside of the support arm 6 projects into a groove 18 machined in the cross member 15. Via this positive connection, the support arm 6 with the tapered rollers 3 mounted thereon can now be axially displaced and pivoted.
  • a locking of the support arm 6 can be achieved by tightening the clamping screw 17.
  • the tapered rollers 3 have different circumferential speeds on their conical surfaces, so that speed differences occur during the rolling process with the inking roller 1, which result in the dampening and / or coloring agent being rubbed in the circumferential direction of the roller.
  • the rotary body is designed as a disc 19. This rests on the inking roller 1 in such a way that its end-face annular surface 20 formed by a central concentric recess runs almost in a plane parallel to the longitudinal axis 21 of the inking roller 1.
  • the slight, angular offset 22 to be determined empirically determines the direction of rotation of the disk 19 on the basis of the corresponding frictional torque when it comes into contact with the inking roller 1 would not coincide with the axis of rotation 23 of the disk 19, but would be offset laterally.
  • the angular offset 22 would be almost zero.
  • FIG. 3 shows a further, schematically represented arrangement possibility of the disk 19, in which its axis of rotation 23 is perpendicular to the longitudinal axis 21 of the inking roller 1.
  • the pressure medium is exchanged with the interposition of cylindrical rollers 24, 25, the longitudinal axes 26, 27 of which run parallel to the longitudinal axis 21 of the roller 1.
  • FIG. 4 shows a possible arrangement of the rotary bodies designed as tapered rollers 3 for the exchange of color and / or dampening solution between two rollers 1, 28 rotating in the opposite direction of rotation.
  • the two tapered rollers 3 with their tapered surfaces 2 are set against one another such that their axes of rotation 29 run parallel. Due to the further contact of the tapered surfaces 2 of the tapered rollers 3 on the two inking rollers 1, 28, on the one hand there is an ink exchange between the two rollers, on the other hand the zones 4 and 5 of the ink exchange are shifted from one another.
  • the width and the lateral offset of zones 4 and 5 could be changed, for example, by appropriate selection of the taper angle and taper roller diameter.
  • a swivel arm 30 is also mounted on a cross member 15.
  • the lower end of said swivel arm 30 is provided with a holding plate 31.
  • Bearing elements 32 for receiving the bearing pins 34 of the tapered rollers 3 are arranged on the latter.
  • FIG. 5 ultimately shows a further possibility of arranging the tapered rollers for ink and / or dampening solution exchange between two rollers 1, 36 rotating in the same direction of rotation.
  • additional cylindrical roller 37 required.
  • the holding device for such an arrangement also for the purpose of pivoting or shifting in the axial direction, corresponds essentially to the holding device according to FIG. 4. All that is required is a further bearing element for receiving the cylindrical roller 37.
  • the invention is not restricted to the illustrated embodiments. So it is quite conceivable to use other rotational bodies, e.g. B. to provide hyperbolic rollers or corresponding flat surface shapes of the disc and to employ appropriate holding devices on the rollers to achieve a corresponding pressure medium exchange. For example, several such devices can also be mounted on the same crossmember. This could also be brought into or out of function instead of by pivoting, for example, in such a way that a linear movement of the device is achieved by means of a corresponding displacement device.
  • other rotational bodies e.g. B. to provide hyperbolic rollers or corresponding flat surface shapes of the disc and to employ appropriate holding devices on the rollers to achieve a corresponding pressure medium exchange.
  • several such devices can also be mounted on the same crossmember. This could also be brought into or out of function instead of by pivoting, for example, in such a way that a linear movement of the device is achieved by means of a corresponding displacement device.
  • the device according to the invention is used in an inking unit.
  • the embodiments shown in Figures 2 and 3 are suitable for the pressure medium exchange on the same inking roller.
  • the rotating body is designed as a disk 19. According to the embodiment according to FIG. 2, this rests against the inking roller 1 in such a way that its end face annular surface 20, formed by a central concentric recess, runs almost in a plane parallel to the longitudinal axis 21 of the inking roller 1.
  • the slight, angular offset 22 to be determined empirically determines the direction of rotation of the disk 19 on the basis of the corresponding frictional torque when it is in contact with the inking roller 1 would not coincide with the axis of rotation 23 of the disk 19, but would be offset laterally.
  • the angular offset 22 would be almost zero.
  • the disk 19 For the purpose of shifting in the longitudinal direction of the roller and for bringing the disk 19 into and out of function, it can be mounted on a cross member, for example, by means of bearing elements (not shown). With the disk 19, the dampening or coloring agent can be rubbed in the circumferential direction of the roller, since its contact surfaces with the inking roller 1 have different circumferential speeds due to different radial distances from the axis of rotation 23.
  • FIG. 3 shows a further, schematically represented arrangement possibility of the disk 19, in which its axis of rotation 23 is perpendicular to the longitudinal axis 21 of the inking roller 1.
  • the pressure medium is exchanged with the interposition of cylindrical rollers 24, 25, the longitudinal axes 26, 27 of which run parallel to the longitudinal axis 21 of the roller 1.
  • FIG. 5 shows an embodiment using two tapered rollers for exchanging ink and / or dampening solution between two rollers 1, 36 rotating in the same direction of rotation.
  • the two tapered rollers 3 are placed against one another via an intermediate cylindrical roller 37 with their tapered surfaces 2 in such a way that their axes of rotation 29 run parallel. Due to the further contact of the tapered surfaces 2 of the tapered rollers 3 on the two inking rollers 1, 36, on the one hand there is an ink exchange between the two rollers, on the other hand two zones 4 and 5 of the ink exchange are shifted against each other.
  • the width and the lateral offset of zones 4 and 5 could be changed, for example, by appropriate selection of the taper angle and taper roller diameter.
  • a holding device is provided for the tapered rollers 3 and the cylindrical roller 37.
  • a swivel arm 30 is mounted on a cross member 15 which can be rotated about its longitudinal axis 16.
  • the lower end of said swivel arm 30 is provided with a holding plate 31.
  • Bearing elements 32 for receiving the bearing pins 34 of the rotary bodies 3, 37 are arranged on the latter.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP82111066A 1981-12-09 1982-11-30 Vorrichtung zum Druckmittelaustausch zwischen, in Walzenlängsrichtung zueinander versetzten Zonen im Druckwek einer Rotationsdruckmaschine Expired EP0081187B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3148667 1981-12-09
DE3148667A DE3148667C1 (de) 1981-12-09 1981-12-09 Vorrichtung zum Druckmittelaustausch zwischen, in Walzenlängsrichtung zueinander versetzten Zonen im Farbwerk einer Rotationsdruckmaschine

Publications (2)

Publication Number Publication Date
EP0081187A1 EP0081187A1 (de) 1983-06-15
EP0081187B1 true EP0081187B1 (de) 1986-04-16

Family

ID=6148224

Family Applications (1)

Application Number Title Priority Date Filing Date
EP82111066A Expired EP0081187B1 (de) 1981-12-09 1982-11-30 Vorrichtung zum Druckmittelaustausch zwischen, in Walzenlängsrichtung zueinander versetzten Zonen im Druckwek einer Rotationsdruckmaschine

Country Status (7)

Country Link
US (1) US4572072A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
EP (1) EP0081187B1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
JP (1) JPS58112743A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
AT (1) AT385727B (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
CA (1) CA1218897A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
DE (1) DE3148667C1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)
ES (1) ES8308262A1 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3419764C2 (de) * 1984-05-26 1986-05-28 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum seitlichen Transportieren überschüssiger Farbe, Farb-/Wasseremulsion oder Wasser
US20060226168A1 (en) * 2005-02-09 2006-10-12 Henegar Jeffrey W Roof seam tape applicator
US8347932B2 (en) * 2005-02-09 2013-01-08 Firestone Building Products Company, Llc Roof seam tape applicator

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1077882A (en) * 1913-04-21 1913-11-04 Edward F Holz Ink-fountain for printing-presses.
GB256703A (en) * 1925-05-14 1926-08-16 Isaac Charles Squier Improvements in inking mechanism for printing presses
US1715741A (en) * 1927-11-07 1929-06-04 Leslie W Claybourn Inking mechanism for printing machinery
US2904813A (en) * 1955-06-16 1959-09-22 George R Schleicher Paint applying devices
US3903793A (en) * 1974-08-23 1975-09-09 Pitney Bowes Inc Inking mechanism for a postage meter
US4033262A (en) * 1976-03-18 1977-07-05 Veb Polygraph Leipzig Kombinat Fur Polygraphische Maschinen Und Ausrustungen Ink applicator for printing apparatus
DE2659557A1 (de) * 1976-12-30 1978-07-06 Maschf Augsburg Nuernberg Ag Rotations-offsetdruckwerk
DE2856088A1 (de) * 1978-12-23 1980-07-03 Maschf Augsburg Nuernberg Ag Farbwerk
DE2942689C2 (de) * 1979-10-23 1983-10-13 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Übertragen von Farbe in einem Farbwerk einer Offset-Rotationsdruckmaschine
DE3014144C2 (de) * 1980-04-12 1982-01-21 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum Aufbringen einer Flüssigkeit auf den Plattenzylinder einer Rotationsdruckmaschine
DE3127880C2 (de) * 1981-07-15 1983-12-22 Koenig & Bauer AG, 8700 Würzburg Farbwerk

Also Published As

Publication number Publication date
CA1218897A (en) 1987-03-10
EP0081187A1 (de) 1983-06-15
ES518010A0 (es) 1983-09-01
ES8308262A1 (es) 1983-09-01
AT385727B (de) 1988-05-10
ATA447882A (de) 1987-10-15
DE3148667C1 (de) 1987-07-09
US4572072A (en) 1986-02-25
JPS58112743A (ja) 1983-07-05
JPH0358912B2 (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) 1991-09-06

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