EP0353652B1 - Zusatzeinrichtung zum Anbau an eine Offset-Druckmaschine - Google Patents

Zusatzeinrichtung zum Anbau an eine Offset-Druckmaschine Download PDF

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Publication number
EP0353652B1
EP0353652B1 EP89113987A EP89113987A EP0353652B1 EP 0353652 B1 EP0353652 B1 EP 0353652B1 EP 89113987 A EP89113987 A EP 89113987A EP 89113987 A EP89113987 A EP 89113987A EP 0353652 B1 EP0353652 B1 EP 0353652B1
Authority
EP
European Patent Office
Prior art keywords
cylinder
toothed wheel
forming cylinder
accessory
printing machine
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
EP89113987A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0353652A2 (de
EP0353652A3 (de
Inventor
Andreas Wilke
Max Wolgschaft
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.)
Rena Informationstechnik & Co KG GmbH
Original Assignee
Rena Informationstechnik & Co KG 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 Rena Informationstechnik & Co KG GmbH filed Critical Rena Informationstechnik & Co KG GmbH
Publication of EP0353652A2 publication Critical patent/EP0353652A2/de
Publication of EP0353652A3 publication Critical patent/EP0353652A3/de
Application granted granted Critical
Publication of EP0353652B1 publication Critical patent/EP0353652B1/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
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/08—Rotary lithographic machines for offset printing using one transfer cylinder co-operating with several forme cylinders for printing on sheets or webs, e.g. sampling of colours on one transfer cylinder
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/08—Cylinders
    • B41F13/10—Forme cylinders
    • B41F13/12—Registering devices
    • B41F13/14—Registering devices with means for displacing the cylinders

Definitions

  • the invention relates to an additional device for mounting on an offset printing press with the features of the preamble of patent claim 1.
  • Such an additional device is known, for example, from FR-A 1 528 114.
  • This additional device is intended, for example, to upgrade an existing printing press for printing a second color and has a further forme cylinder and devices for applying ink to the forme cylinder and for moistening it.
  • adjusting devices for adjusting the forme cylinder are designed in the axial direction and in the circumferential direction.
  • the adjustment of the forme cylinder in the circumferential direction for adjusting the images in their longitudinal direction is carried out by the adjustable arrangement or assembly of the drive gear on the forme cylinder.
  • the sensitive adjustment of the forme cylinder in the circumferential direction is therefore only possible to a limited extent or with great design effort.
  • FR-A 2 242 243 proposed to effect the adjustment of the forme cylinder in the circumferential direction by the axial displacement of a drive gear mounted by means of two bearings with helical teeth, whereby the axially sliding movement of the drive gear in connection with the helical teeth causes movement of the forme cylinder in the circumferential direction.
  • a disadvantage of this device is the mounting of the drive gear on an axially adjustable bearing journal which is screwed into a threaded bushing seated in the machine frame, the bearing play which is hardly avoidable in this type of mounting having a disadvantageous effect on the precision in the adjustment of the forme cylinder in the circumferential direction.
  • a device on rotary printing presses for setting the side and the circumferential register in which both for the adjustment of the forme cylinder in the axial direction as well as for the adjustment in the circumferential direction are arranged in the two at the ends of the forme cylinder
  • a sliding bushing is arranged in each case, which is connected to a ring gear that can be adjusted on the cylinder bearing.
  • an axial displacement of the cylinder is achieved in that the sliding bush in question is supported by a thrust bearing on a disk attached to the end of the cylinder journal.
  • the adjustment of the cylinder in the circumferential direction is achieved in that the sliding bush in question is supported at the other end of the forme cylinder via a further thrust bearing on an obliquely toothed drive gear which is displaceably mounted on the relevant cylinder journal against the force of compression springs, the compression springs with their the other end act on a drive plate arranged on the end face of the relevant journal.
  • both the bearing play of the adjusting device for the circumferential direction and the bearing play the adjusting device for the axial adjustment of the forme cylinder is practically eliminated by the compression springs, however, the use of two sliding bushes for the cylinder bearings and the arrangement of two disks at the ends of the bearing pins involve a relatively large amount of design effort.
  • the disadvantage of the arrangement of the two disks at the ends of the cylinder journals is that the side frame in which the cylinder bearings are arranged cannot simultaneously function as a casing for the machine, but rather to protect the operator, the moving parts are covered by additional casings Need to become.
  • the invention is therefore based on the object of avoiding these disadvantages and of creating an add-on device or additional device which can be attached to existing offset printing presses and which enables the print image to be adjusted in a simple manner and with high accuracy with little design complexity and small size.
  • the gear wheel which can be fastened on the blanket cylinder of the offset printing press consists of at least two segments. This allows the gear to be fixed in the offset press without removing the blanket cylinder, i.e. without having to disassemble the existing printing press when installing the additional device.
  • the gear segments expediently have an annular groove into which a reinforcing ring consisting of segments is inserted is inserted and attached, the segment ends of which are arranged offset from the segment ends of the gear.
  • brackets which are fastened to the housing on the additional device are provided and have bores which are aligned with existing threaded bores on the upper side of the frame of the offset printing press.
  • Such threaded holes are made by the manufacturer there to enable screwing in of the hook or a lifting device.
  • the offset printing press 1 has in FIG known manner on a printing unit driven by gears that essentially consists of a forme cylinder 3, a blanket cylinder 4 and an inking unit 5.
  • the forme cylinder 3 serves to receive and fix the printing film.
  • the print image of this printing film is transferred after application of the printing ink during rotation from the forme cylinder 3 to the blanket cylinder 4 and then printed during the same printing cycle on a printing material passed between the blanket cylinder 4 and a (not shown) impression cylinder
  • the additional device has a further forme cylinder 6 which is mounted in the housing 7 of the additional device. It is provided with paint in a known manner on various rollers.
  • the ink fountain roller 8 transfers the ink from an ink fountain 9 via an ink lifter 10 via ink fountain pens 11 and ink application rollers 12 to the forme cylinder 6.
  • a water basin 14 via a dampening roller 13, a dampening lifter 15, a dampening roller 16 and a dampening application roller 17 Transfer moisture to the forme cylinder 6.
  • An essential feature of the invention can now be seen in the fact that the forme cylinder 6 is driven by a drive gear 18 which is fixedly connected to it and which has helical teeth. This helical toothing engages in the helical toothing of a drive gear 19 which is mounted on the end face of the blanket cylinder 4 of the offset printing press 1.
  • the drive gear 19 is constructed from several, in the exemplary embodiment shown, from two circular segments 19A, 19B, as can be seen in particular from FIG. 2.
  • the reinforcement ring 20 which is also divided into segments 20A and 20B, additionally fixes the segments 19A, 19B of the drive gear 19 in their position. They engage in an annular groove 19D of the gear wheel 19 and their segment ends 20C are offset by 90 ° against the segment ends 19C of the gear wheel 19.
  • the attachment to the front of the blanket cylinder 4 is done by screws
  • the forme cylinder 6 is adjustable along its axis by a side register 21.
  • a longitudinal register 22 enables displacement of the drive gear 18 relative to the forme cylinder 6 to rotate it in the circumferential direction, relative to the blanket cylinder of the offset printing press. Details of the two registers will be described later.
  • the additional device according to the invention can be fastened to the housing 1 of the offset printing machine via brackets 23 which are fastened to its housing 7.
  • brackets 23 have in their upper part a hinge joint 24 with which they are articulated to the actual fastening part 25.
  • In this fastening part 25 are Bores are provided which are aligned with threaded bores already provided in the upper part of the frame of the offset printing press 1. These threaded holes are in themselves intended for the use of hooks which serve to lift and transport the machine.
  • screws 26 are screwed into these bores, with which fastening parts 25 of the bracket 23 of the additional device can be fastened.
  • the rotary knob 21 of the side register is connected via an axis 27, which is mounted in the housing 7, to a toothed wheel 28, which is in engagement with a toothed wheel 29, which has an internal thread.
  • This internal thread is in engagement with a thread 30 of a cylinder 31, in which a core shaft 32 is mounted.
  • the forme cylinder 6 has a cylindrical sleeve 34 and is supported by a roller bearing 35.
  • An axial bearing 36 is arranged between the gear wheel 29 and the sleeve 34.
  • the core shaft 32 is mounted in a sleeve 37.
  • a gearwheel 39 is fastened to a rotary knob 22 via an axis 38, which meshes with a toothed pin 40 which is connected to a washer 41 which has an internal thread, that is engaged with the thread 42.
  • the disk 41 presses against an axial bearing 47, which is mounted in an annular groove 18A of the drive gear for the forme cylinder 6.
  • the gear wheel 18 is connected to the forme cylinder 6 by means of stud bolts 43 which are displaceable in recesses 44 in the cylinder body of the forme cylinder 6.
  • Several, preferably 6, such stud bolts 43 are evenly distributed over the circumference.
  • the same number of compression springs 45 is mounted in recesses in the gear wheel 18 and presses the body of the forme cylinder 6 in the direction of the side register 21.
  • the gear 18 is thus relative to the cylinder body, i. H. moved to the forme cylinder 6 so that it undergoes a slight rotation in the circumferential direction as a result of the helical teeth.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Accessory Devices And Overall Control Thereof (AREA)
EP89113987A 1988-08-02 1989-07-28 Zusatzeinrichtung zum Anbau an eine Offset-Druckmaschine Expired - Lifetime EP0353652B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8809859U 1988-08-02
DE8809859U DE8809859U1 (ja) 1988-08-02 1988-08-02

Publications (3)

Publication Number Publication Date
EP0353652A2 EP0353652A2 (de) 1990-02-07
EP0353652A3 EP0353652A3 (de) 1991-07-03
EP0353652B1 true EP0353652B1 (de) 1994-09-21

Family

ID=6826567

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89113987A Expired - Lifetime EP0353652B1 (de) 1988-08-02 1989-07-28 Zusatzeinrichtung zum Anbau an eine Offset-Druckmaschine

Country Status (4)

Country Link
EP (1) EP0353652B1 (ja)
JP (1) JPH0280248A (ja)
AT (1) ATE111806T1 (ja)
DE (2) DE8809859U1 (ja)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8042466B2 (en) 2007-03-02 2011-10-25 Heidelberger Druckmaschinen Ag Printing press with adjustable bearer rings

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03286863A (ja) * 1990-04-02 1991-12-17 Iwasaki Tekko Kk 多重印刷装置
JP3448766B2 (ja) * 2000-06-07 2003-09-22 株式会社東京機械製作所 多色輪転印刷機の見当調整装置
CN100379556C (zh) * 2006-02-24 2008-04-09 汕头市华盛塑料包装实业有限公司 锥面容器印刷机快速同轴调版装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2598414A (en) * 1946-04-19 1952-05-27 Addressograph Multigraph Pivotal frame mounting structure for offset printing machine cylinders
FR1528114A (fr) * 1966-07-29 1968-06-07 Addressograph Multigraph Procédé d'impression en offset en deux couleurs
CH577383A5 (ja) * 1973-08-27 1976-07-15 Schulz Juergen
US4043214A (en) * 1976-04-13 1977-08-23 Glen Edgar Westlake Sprocket, gear or pulley with interchangeable rim
DD128407B1 (de) * 1976-07-02 1986-02-26 Polygraph Leipzig Registereinstellvorrichtung fuer formzylinder von rotationsdruckmaschinen
DE7634679U1 (de) * 1976-10-30 1977-02-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Vorrichtung an rotationsdruckmaschinen zum einstellen des seiten- und des umfangsregisters
JPS587653U (ja) * 1981-07-09 1983-01-18 リョービ株式会社 オフセット印刷機の画像位置調整装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8042466B2 (en) 2007-03-02 2011-10-25 Heidelberger Druckmaschinen Ag Printing press with adjustable bearer rings

Also Published As

Publication number Publication date
DE58908393D1 (de) 1994-10-27
ATE111806T1 (de) 1994-10-15
EP0353652A2 (de) 1990-02-07
EP0353652A3 (de) 1991-07-03
DE8809859U1 (ja) 1988-09-15
JPH0280248A (ja) 1990-03-20

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