EP0265802B1 - Vorrichtung zur schwingungsarmen Übergabe und zum Transport von Bogen zwischen doppelt grossen Druckzylindern einer Mehrfarben-Bogenrotationsoffsetdruckmaschine - Google Patents

Vorrichtung zur schwingungsarmen Übergabe und zum Transport von Bogen zwischen doppelt grossen Druckzylindern einer Mehrfarben-Bogenrotationsoffsetdruckmaschine Download PDF

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Publication number
EP0265802B1
EP0265802B1 EP87115207A EP87115207A EP0265802B1 EP 0265802 B1 EP0265802 B1 EP 0265802B1 EP 87115207 A EP87115207 A EP 87115207A EP 87115207 A EP87115207 A EP 87115207A EP 0265802 B1 EP0265802 B1 EP 0265802B1
Authority
EP
European Patent Office
Prior art keywords
catch
double
fork
mounting
sprocket
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
EP87115207A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0265802A3 (en
EP0265802A2 (de
Inventor
Dietrich Dettinger
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 AT87115207T priority Critical patent/ATE70777T1/de
Publication of EP0265802A2 publication Critical patent/EP0265802A2/de
Publication of EP0265802A3 publication Critical patent/EP0265802A3/de
Application granted granted Critical
Publication of EP0265802B1 publication Critical patent/EP0265802B1/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
    • B41F21/00—Devices for conveying sheets through printing apparatus or machines
    • B41F21/08—Combinations of endless conveyors and grippers

Definitions

  • the invention relates to a device for low-vibration transfer and for transporting sheets between double-sized printing cylinders of a multi-color sheet-fed rotary offset printing machine by means of gripper carriages movable on rails according to the preamble of the first claim.
  • envelope error occurs in the second sheet.
  • This sheet is taken from the first, sooner or later of double-sized impression cylinders or transferred to the next following double-sized impression cylinder.
  • the envelope error is known to be caused by the sum of division errors or other errors of the gearwheels of the drive involved and is expressed as the advance or lag of the color printed on the sheet in the first printing unit to the printed colors of the subsequent printing units.
  • DE-GM 7 512 204 it is already known from DE-GM 7 512 204 to compensate for the envelope error by means of adjustable toothed register pieces on double-sized transfer drums by intermeshing them temporarily with register pieces of the double-sized printing cylinders.
  • this device is a drum transfer system which has no transport chains and in which no gripper carriages can be moved on rails which have to be driven by endless chains via link connections. Due to tolerances of the chain or in the assigned guides, a low-vibration transfer in chain conveyors in connection with double-large chain wheel removal or. feed drums particularly difficult. No information can be taken from the above-mentioned document.
  • the object of the invention is to achieve, in a device of the type mentioned, a register-accurate, low-vibration removal or transfer of the two sheets on the circumference of the double-sized printing cylinder by smooth and gentle entry of the cam rollers of the gripper wagons into the associated catch forks.
  • the advantage of the invention is that, for the first time, the use of a double-sized sprocket take-off or feed drum for a fitting sheet transfer between double-sized printing cylinders is made possible, whereby the favorable properties of chain transfer systems such as e.g. less transfers, less risk of smearing and less frequent back and forth bending of the sheets compared to drum transfer systems can be effective in such machine arrangements.
  • the device according to the invention is intended for transport and a register-accurate, low-vibration transfer of sheets between two printing units 1 and 2, each of which has a double-sized printing cylinder 3 and simply large rubber cylinders and plate cylinders. After printing in the printing unit 1, the sheet is transported from a double-size chain wheel take-up drum 4 to the double-size chain wheel supply drum 5 in the printing unit 2 (see FIG. 1).
  • the device has two mutually parallel, endless chains 7, which serve to convey a plurality of gripper carriages 6, which are arranged between the chains 7.
  • Each chain 7 runs over two double-sized chain wheels 16, which are driven synchronously with the cylinders of the two printing units 1 and 2.
  • the gripper carriages 6 are guided on rails 8 and are driven by the endless chains 7, wherein each strand of the chain 7 between the double-sized chain wheels 16 of the chain wheel removal drum 4 and the chain wheel feed drum 5 can also be guided by rails 29.
  • a drive roller not shown in the drawing, engages like a sliding block in a backdrop, not shown, on the gripper carriage 6 in the middle between two rollers 9 on the gripper carriage 6, which are guided between the running rails 8.
  • the double-sized sprocket removal or feed drums 4, 5 are accommodated on the drive side 24 and the operating side 23 in side stands 22 via bearings 25.
  • the gripper carriages 6 capture forks 11, 12 on cam rollers 10 and press them outward, so that the rollers 9 of the respective gripper carriages 6 are guided in the rails 8 without play .
  • the gripper carriages 6 can be aligned in a two-way rhythm by a first catch fork 11 adjustable in the radial direction by means of a height adjustment 17 and by a second catch fork 12 adjustable in the radial direction by means of a height adjustment 27.
  • the catch fork 11 is connected to a holder 14 which is fixedly arranged on the sprocket shaft 19 of the double-sized sprocket take-off or feed drums 4, 5, while the second catch fork 12 is connected to a holder 15 which is rotatable with respect to the first catch fork 11.
  • the catch forks 11, 12 are detachably connected on the front side to the double-large chain wheel 16 which is adjustable in the tangential direction on the chain wheel shaft 19.
  • the double-sized chain wheel 16 and the second catch fork 12 can be adjusted in the tangential direction by means of the same adjusting screw 13, with either locking screws 26 or 28 alternatively having to be loosened.
  • the adjusting screw 13 is supported on a stop in the double-sized chain wheel 16.
  • the second catch fork 12 has an annular receptacle on the holder 15 and is mounted on the flange of the holder 14 for the first catch fork 11.
  • the flange of the bracket 14 of the first catch fork 11 is firmly connected to the sprocket shaft 19 by pins 21.
  • the catch forks 11, 12 can be adjusted both in the radial direction and in relation to one another in the circumferential direction.
  • the catch forks 11, 12 can be locked in a zero position by a fixation 30.
  • Two mutually directed wedges 18 are arranged in horizontally extending guides of the holder 15 of the second catch fork 12, supported on the flange of the holder 14 of the first catch fork 11, by means of adjusting screws 20.
  • the adjustable wedges allow all play between the individual seats of the double-sized sprockets 16 and the brackets 14, 15 of the catch forks 11, 12 to be pulled out for play-free installation, in such a way that the catch fork 11, 12 is supported directly on the sprocket shaft 19.

Landscapes

  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
  • Discharge By Other Means (AREA)
  • Rotary Presses (AREA)
EP87115207A 1986-10-28 1987-10-17 Vorrichtung zur schwingungsarmen Übergabe und zum Transport von Bogen zwischen doppelt grossen Druckzylindern einer Mehrfarben-Bogenrotationsoffsetdruckmaschine Expired - Lifetime EP0265802B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87115207T ATE70777T1 (de) 1986-10-28 1987-10-17 Vorrichtung zur schwingungsarmen uebergabe und zum transport von bogen zwischen doppelt grossen druckzylindern einer mehrfarbenbogenrotationsoffsetdruckmaschine.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863636579 DE3636579A1 (de) 1986-10-28 1986-10-28 Vorrichtung zur schwingungsarmen uebergabe und zum transport von bogen zwischen doppelt grossen druckzylindern einer mehrfarben-bogenrotationsoffsetdruckmaschine
DE3636579 1986-10-28

Publications (3)

Publication Number Publication Date
EP0265802A2 EP0265802A2 (de) 1988-05-04
EP0265802A3 EP0265802A3 (en) 1989-11-29
EP0265802B1 true EP0265802B1 (de) 1991-12-27

Family

ID=6312602

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87115207A Expired - Lifetime EP0265802B1 (de) 1986-10-28 1987-10-17 Vorrichtung zur schwingungsarmen Übergabe und zum Transport von Bogen zwischen doppelt grossen Druckzylindern einer Mehrfarben-Bogenrotationsoffsetdruckmaschine

Country Status (3)

Country Link
EP (1) EP0265802B1 (enExample)
AT (1) ATE70777T1 (enExample)
DE (2) DE3636579A1 (enExample)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB700116A (en) * 1950-03-30 1953-11-25 Faber And Schleicher Ag Apparatus for the conveying, with correct spacing, of sheets of paper between two rotary printing couples
DE2037262A1 (de) * 1969-08-07 1971-02-18 Polygraph Leipzig Kom F Polygr Vorrichtung zur paßgerechten Bogenuber gäbe zwischen den Druckwerken von Mehrfar benbogenrotationsdruckmascrunen
US3847079A (en) * 1972-05-04 1974-11-12 H Dahlgren Method of printing sheets
DE7512204U (de) * 1975-04-17 1977-08-04 Koenig & Bauer Ag, 8700 Wuerzburg Vorrichtung zum registerhaltigen uebergeben von bogen in eine bogenrotationsdruckmaschine

Also Published As

Publication number Publication date
ATE70777T1 (de) 1992-01-15
EP0265802A3 (en) 1989-11-29
DE3636579A1 (de) 1988-05-19
DE3775518D1 (enExample) 1992-02-06
DE3636579C2 (enExample) 1990-08-09
EP0265802A2 (de) 1988-05-04

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