EP0036043A1 - Rouleaux de transfert d'encre ou de liquide de mouillage dans les machines d'impression en offset - Google Patents

Rouleaux de transfert d'encre ou de liquide de mouillage dans les machines d'impression en offset Download PDF

Info

Publication number
EP0036043A1
EP0036043A1 EP80107931A EP80107931A EP0036043A1 EP 0036043 A1 EP0036043 A1 EP 0036043A1 EP 80107931 A EP80107931 A EP 80107931A EP 80107931 A EP80107931 A EP 80107931A EP 0036043 A1 EP0036043 A1 EP 0036043A1
Authority
EP
European Patent Office
Prior art keywords
rollers
roller
ink
roller body
dampening solution
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.)
Ceased
Application number
EP80107931A
Other languages
German (de)
English (en)
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 EP0036043A1 publication Critical patent/EP0036043A1/fr
Ceased 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
    • B41F7/20—Details
    • B41F7/24—Damping devices
    • B41F7/26—Damping devices using transfer rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/26—Construction of inking rollers

Definitions

  • the invention relates to rollers for ink or fountain solution transport in offset printing machines.
  • the damp and color film on these rollers is largely influenced by temperature fluctuations due to its small thickness. While the increased evaporation rate has a detrimental effect on the printing process in the case of wet film with rising temperatures, it is primarily the change in the physical properties of the color in the case of color film.
  • the rollers of the inking and dampening system in printing presses are subject to heating during the machine run, the greater the higher the printing speed and the longer the press is running.
  • the invention has for its object to design the rollers for the ink or dampening solution transport, in particular the distribution rollers so that the temperatures of the dampening solution and the ink remain almost constant, even when the printing press is interrupted and in special operating conditions, and a temperature difference across the Roll length can be avoided or at least kept low.
  • This object is achieved in that components with a low thermal conductivity are arranged between the lateral surface of the rollers and the drive and bearing parts of the rollers which heat up during machine operation.
  • rollers are particularly advantageous for wet friction cylinders. But it is also important for other rollers of dampening and inking units and is easy to implement in terms of design.
  • roller 3 mounted in the side walls 1, 2 of the printing press in FIG. 1 essentially consists of the two bearing journals 4, 5 and the roller body 6. Both roller bearings and roller bearings can be used as roller bearings 7, 8, depending on the design requirements.
  • a threaded rod 10 is guided through the one bearing pin 4 provided with a bore 9. This threaded rod 10 extends over the entire length of the hollow roller body 6 and is screwed into the bearing pin 5, which is provided with a threaded bore 11 and has its end face attached to the roller body 6.
  • Bushes 17 made of a material with low thermal conductivity and fitted into the journal ends 16 serve to receive the fastening screws 18. This reliably prevents an indirect metallic connection between the journal 14 and the roller body 6 via the fastening screws 18.
  • the roller for the ink or dampening solution transport 3 is made in several parts. Furthermore, the bearing journals 19, which are mounted in the side walls 1, 2 of the printing press, are also fastened to the end faces of the roller body 6 by means of fastening screws 18 and intermediate bushes 20.
  • the main difference from the embodiment according to FIG. 2 is the fact that the pin end 21 which is respectively fitted into the end face of the roller body 6 is given a coating 22 made of a material with low thermal conductivity.
  • the roller 23 is formed in one piece.
  • the roller bearings 7 themselves are made of a material with low thermal conductivity.
  • a heat insulating sleeve 26 arranged and connected to the roller body 29 and engine part 25 by screws 27,28 that there is no metallic connection, but a torque transmission is still possible.
  • the invention is of course in no way limited to the embodiments shown in FIGS. 1 to 4 and set out in the description.
  • the diversity of the task for the individual rollers for the ink or dampening solution transport requires different structural configurations of the same.
  • different structural embodiments of the measures on which the inventive idea is based are also conceivable.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Rotary Presses (AREA)
  • Supply, Installation And Extraction Of Printed Sheets Or Plates (AREA)
EP80107931A 1980-03-13 1980-12-16 Rouleaux de transfert d'encre ou de liquide de mouillage dans les machines d'impression en offset Ceased EP0036043A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3009638 1980-03-13
DE3009638A DE3009638C2 (de) 1980-03-13 1980-03-13 Walzen für Farb- oder Feuchtmitteltransport in Offsetdruckmaschinen

Publications (1)

Publication Number Publication Date
EP0036043A1 true EP0036043A1 (fr) 1981-09-23

Family

ID=6097092

Family Applications (1)

Application Number Title Priority Date Filing Date
EP80107931A Ceased EP0036043A1 (fr) 1980-03-13 1980-12-16 Rouleaux de transfert d'encre ou de liquide de mouillage dans les machines d'impression en offset

Country Status (6)

Country Link
EP (1) EP0036043A1 (fr)
JP (1) JPS5831309B2 (fr)
CA (1) CA1173697A (fr)
DE (1) DE3009638C2 (fr)
ES (1) ES498741A0 (fr)
IT (1) IT1135302B (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3242066A1 (de) * 1982-11-13 1984-05-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Kuehlwalze mit vorgewaehlten unterschiedlichen kuehlzonen
DE3342877C1 (de) * 1983-11-26 1985-01-10 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Heberfarbwerk fuer eine Rotationsdruckmaschine
DE3431149C2 (de) * 1984-08-24 1986-07-24 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Koaxialer Wellenansatz für Walzen von Rotationsdruckmaschinen
WO2018135204A1 (fr) * 2017-01-19 2018-07-26 パナソニックＩｐマネジメント株式会社 Dispositif à rouleau et machine d'impression

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912556A (en) * 1958-05-02 1959-11-10 Farrel Birmingham Co Inc Electrically heated roll for calenders or the like
FR2211296A1 (fr) * 1972-12-20 1974-07-19 Procter & Gamble
GB1390688A (en) * 1972-12-27 1975-04-16 Simon Vk Ltd Printing presses
US3887250A (en) * 1970-03-06 1975-06-03 Vepa Ag Godet for use in drawing apparatus and drum dryer units
DE2658380A1 (de) * 1976-12-23 1978-07-06 Grapho Metronic Gmbh & Co Farbwalze fuer druckmaschinen

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT6591B (fr) * 1900-01-29 1902-01-25 Josef Schmittal
GB190713130A (en) * 1907-06-06 1908-06-04 Jasper Wetter Improvements in and connected with Inking Rollers for Printing Machines.
DE830962C (de) * 1949-12-28 1952-02-11 Guenther Wagner Fa Feuchtvorrichtung fuer Vervielfaeltigungsmaschinen, insbesondere Spiegelschriftumdrucker
DE2620381A1 (de) * 1976-05-08 1977-11-17 Weitmann & Konrad Walze zum uebertragen waessriger feuchtmittel

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2912556A (en) * 1958-05-02 1959-11-10 Farrel Birmingham Co Inc Electrically heated roll for calenders or the like
US3887250A (en) * 1970-03-06 1975-06-03 Vepa Ag Godet for use in drawing apparatus and drum dryer units
FR2211296A1 (fr) * 1972-12-20 1974-07-19 Procter & Gamble
GB1390688A (en) * 1972-12-27 1975-04-16 Simon Vk Ltd Printing presses
DE2658380A1 (de) * 1976-12-23 1978-07-06 Grapho Metronic Gmbh & Co Farbwalze fuer druckmaschinen

Also Published As

Publication number Publication date
ES8200269A1 (es) 1981-11-01
DE3009638A1 (de) 1981-09-17
DE3009638C2 (de) 1982-11-04
IT8119514A0 (it) 1981-02-05
CA1173697A (fr) 1984-09-04
IT1135302B (it) 1986-08-20
JPS5831309B2 (ja) 1983-07-05
JPS56144158A (en) 1981-11-10
ES498741A0 (es) 1981-11-01

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Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Designated state(s): AT BE CH FR GB LU NL SE

17P Request for examination filed

Effective date: 19811020

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED

18R Application refused

Effective date: 19840416

RIN1 Information on inventor provided before grant (corrected)

Inventor name: JESCHKE, WILLI