EP0205802A2 - Rouleau d'encrage pour machine à imprimer - Google Patents

Rouleau d'encrage pour machine à imprimer Download PDF

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Publication number
EP0205802A2
EP0205802A2 EP86105405A EP86105405A EP0205802A2 EP 0205802 A2 EP0205802 A2 EP 0205802A2 EP 86105405 A EP86105405 A EP 86105405A EP 86105405 A EP86105405 A EP 86105405A EP 0205802 A2 EP0205802 A2 EP 0205802A2
Authority
EP
European Patent Office
Prior art keywords
roller
inking
tube
inking roller
channels
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.)
Granted
Application number
EP86105405A
Other languages
German (de)
English (en)
Other versions
EP0205802A3 (en
EP0205802B1 (fr
Inventor
Klemens Kemmerer
Peter Hummel
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 AT86105405T priority Critical patent/ATE42503T1/de
Publication of EP0205802A2 publication Critical patent/EP0205802A2/fr
Publication of EP0205802A3 publication Critical patent/EP0205802A3/de
Application granted granted Critical
Publication of EP0205802B1 publication Critical patent/EP0205802B1/fr
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
    • B41F31/002—Heating or cooling of ink or ink rollers

Definitions

  • the invention relates to an inking roller for printing machines, in particular offset printing machines, the interior of which is flowed through by temperature control means, which can be fed in and out at an end face of the inking roller, free cross sections being arranged in the interior of the inking roller, through which the temperature control means flows in countercurrent.
  • DE-OS 2 658 380 discloses a tempered ink roller in which at least one displacement body is arranged in the interior of the ink roller.
  • the still free cross-section of the inking roller is divided into two concentric ring gaps by a jacket-like partition wall with good thermal conductivity. These are flowed through by countercurrent tempering agents at a high flow rate.
  • the task is to design an ink roller in such a way that the color temperatures also largely. Interruptions in operation of the printing press remain constant and a temperature difference of the ink film over the length of the roller is kept as small as possible.
  • the object of the invention is to obtain a uniform temperature distribution over the entire surface of the inking roller and, with an optimal coefficient of thermal conductivity, to enable rapid regulation to achieve the desired operating temperature and to keep it constant.
  • the inking roller is formed from a ribbed Al roller tube supported on both sides. That the cross sections are formed from a plurality of channels arranged in the tube wall of the Al roller tube, that the channels on the opposite end of the supply and discharge of the temperature control means are connected to one another in pairs via a recess, in such a way that the flow and return are arranged alternately next to one another.
  • the inking roller is made of a ribbed aluminum roller tube that is held on both sides.
  • the roller tube is an extruded profile and consists of only one part.
  • the AI roller tube is supported on both ends by roller holders in the printing press.
  • the aluminum material has a significantly lower coefficient of thermal conductivity and a significantly better corrosion behavior. This increases the service life of the ink roller by a considerable amount of time.
  • Another advantage is the reduction in weight of the inking roller, since the inking rollers of conventional design can have a considerable weight in large printing machines.
  • the above-mentioned coefficient of thermal conductivity is still important in order to quickly reach the operating temperature during the warm-up phase. This means that the warm-up phase of the printing press is minimized.
  • the coefficient of thermal conductivity also has a positive effect on maintaining a certain operating temperature, because the control responds optimally quickly.
  • the uniform temperature distribution on the surface of the ink roller makes the print image uniform across its entire width.
  • the channels cover the side areas of the inking roller, so that these areas, which were previously inaccessible, also lead to a homogenization of the printed image, especially in its edge areas.
  • the channels lie in one plane in the tube wall of the Al roller tube and are therefore always at the same distances from the surface of the ink roller; this is an additional contribution to the temperature equalization mentioned above.
  • the cross sections are formed from a plurality of channels arranged in the tube wall of the Al roller tube.
  • This shape shows, due to the ribbing between the channels and the hollow middle part, seen in the axial direction, a great flexural rigidity of the inking roller.
  • This special shape is chosen to keep the manufacturing costs particularly low because of this shape. can be produced particularly easily by the continuous casting press method.
  • the channels are connected in pairs on the opposite end of the supply and discharge of the temperature control means via a recess such that the alternating flow and return are arranged side by side. Since a return of the tempering agent is arranged between two inlets, the temperature of the inking roller is optimally evened out over its entire surface.
  • a significant simplification of assembly is that cylindrical recesses are arranged on the end faces of the Al roller tube, in which roller holders are fitted and screwed. Due to its simple shape, the inking roller is much cheaper to produce than the known inking rollers, in which a considerable number of welds are unavoidable due to their design. When installing, only the roller brackets on both sides of the Al roller tube are to be inserted and screwed together. In the case of repairs, there is an additional simplification of assembly by slightly loosening the lateral roller holders and thereby uncomplicated removal of the AI roller tube.
  • At least one ring seal is arranged between the roller mounts and the Al roller tube in the axially parallel fitting surface.
  • the ink roller is sealed with the simplest of means due to the special mating surface and the ring seal.
  • the channels for the supply and return of the temperature control medium are of the same size and kidney-shaped.
  • the size of the kidney shape is chosen so that the temperature control medium flowing through is optimally mixed due to the speed of the inking roller, which leads to a particularly favorable heat transfer between the temperature control medium and the adjacent walls of the channel.
  • the shape of the channels reduces the throughput cross-section compared to conventional known designs, which leads to an increased flow rate of the temperature control means that is the same in the forward and return flow.
  • the channels here the supply and return lines in the tube wall of the aluminum roller tube, are connected particularly simply through star-shaped bores within the roller holders running radially from the center of the axis to the supply and discharge of the temperature control medium.
  • These star-shaped feeders are located on two levels within the roller holder.
  • the inlets are e.g. four pieces; accordingly, four processes.
  • the number of feeds can be chosen differently.
  • the Al roller tube is particularly easy to screw and fasten to the evenly distributed screws after inserting the roller holders.
  • FIG. 1 an ink roller 1 of a printing machine, not shown, is shown.
  • the inking roller 1 has channels 2 in an Al roller tube 3.
  • the section through the inking roller 1 is divided in the middle to illustrate the different wall thickness of the Al roller tube 3, and their lateral brackets.
  • An elevator 4.1 is arranged on the aluminum roller tube 3 on a surface 4.
  • the channels 2 have connections to a supply 5 and return 6 on one end of the inking roller 1.
  • recesses 7 are provided, each of which connects two channels 2 to be assigned to the flow 5 and the return 6.
  • the rigid hollow shape of the Al roller tube 3 can be seen.
  • the above-mentioned weight reduction due to the shape and the choice of material aluminum is also clearly recognizable in the inking roller 1 due to the shape.
  • Ribs 13 are formed between the channels 2.
  • the ribs 13 lead to the optimum bending stiffness of the inking roller 1.
  • the channels 2 are alternately provided as forward 5 and return 6 for the temperature control medium.
  • the change between supply and return 6 leads to the temperature on the surface 4 of the inking roller 1 being made more uniform.
  • four screws 14 can be seen which fix the roller holders 10, 11 to the Al roller tube 3.

Landscapes

  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP86105405A 1985-06-14 1986-04-18 Rouleau d'encrage pour machine à imprimer Expired EP0205802B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86105405T ATE42503T1 (de) 1985-06-14 1986-04-18 Farbwalze fuer druckmaschinen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3521424 1985-06-14
DE3521424A DE3521424C1 (de) 1985-06-14 1985-06-14 Farbwalze fuer Druckmaschinen

Publications (3)

Publication Number Publication Date
EP0205802A2 true EP0205802A2 (fr) 1986-12-30
EP0205802A3 EP0205802A3 (en) 1987-09-16
EP0205802B1 EP0205802B1 (fr) 1989-04-26

Family

ID=6273324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP86105405A Expired EP0205802B1 (fr) 1985-06-14 1986-04-18 Rouleau d'encrage pour machine à imprimer

Country Status (5)

Country Link
US (1) US4712475A (fr)
EP (1) EP0205802B1 (fr)
JP (1) JPS6285946A (fr)
AT (1) ATE42503T1 (fr)
DE (1) DE3521424C1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583667A1 (fr) * 1991-01-10 1994-02-23 Belgium Tool And Die Company Appareil d'impression
KR101154861B1 (ko) * 2009-10-29 2012-06-18 스미도모쥬기가이고교 가부시키가이샤 가속입자 조사설비

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2537806Y2 (ja) * 1989-08-24 1997-06-04 株式会社小森コーポレーション ローラ冷却構造
DE3936446A1 (de) * 1989-11-02 1991-05-08 Miller Johannisberg Druckmasch Plattenzylinder einer druckmaschine
DE4108883A1 (de) * 1991-03-19 1992-09-24 Sengewald Karl H Gmbh Druckvorrichtung
DE4229352A1 (de) * 1992-09-07 1994-04-14 Bhs Bayerische Berg Druckmaschine
US5415094A (en) * 1993-10-18 1995-05-16 Morrone; Ross F. Apparatus and method for inking of an engraving die utilizing a selectively rotatable inking roller with external ribbing thereon
JPH07241982A (ja) * 1994-03-07 1995-09-19 Mitsubishi Heavy Ind Ltd 冷却ローラの冷却媒体による冷却方法及び装置
DE19502475C2 (de) * 1995-01-27 1998-07-30 Heidelberger Druckmasch Ag Verfahren und Vorrichtung zur Duktortemperierung im Farbwerk einer Druckmaschine
DE19504583C1 (de) * 1995-02-11 1996-08-01 Roland Man Druckmasch Keilfarbkasten für eine Offsetdruckmaschine
DE19617275C1 (de) * 1996-04-30 1997-08-14 Roland Man Druckmasch Walze, insbesondere Farbwalze für eine Druckmaschine
DE10137166A1 (de) * 2000-08-23 2002-03-07 Heidelberger Druckmasch Ag Verfahren zur Temperierung von Druckformoberflächen während des Druckes
DE102008026496A1 (de) * 2008-06-03 2009-12-24 Knorr, Andreas, Dipl.-Ing. Walze mit selbsteinstellbarer Durchbiegung
DE102009057974B4 (de) * 2009-01-19 2021-10-28 Heidelberger Druckmaschinen Ag Druckmaschine
EP2810130B1 (fr) * 2012-01-31 2018-05-16 HP Indigo B.V. Dispositif moulé avec tubes implantés pour dispositif de formation d'images
FR3072902B1 (fr) * 2017-10-26 2019-11-15 Epsilon Composite Embout pour rouleaux de machine industrielle
CN110143047B (zh) * 2019-07-03 2024-06-14 万军霞 一种冷烫承印辊

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US30302A (en) * 1860-10-09 Improvement in cultivators
US2255410A (en) * 1939-09-23 1941-09-09 John Waldron Corp Ink distributing device
NL61285C (fr) * 1946-10-25 1948-01-15
GB839058A (en) * 1957-12-03 1960-06-29 Joseph Dilworth Improvements in drying cylinders
US3224110A (en) * 1961-01-25 1965-12-21 Scott Paper Co Rotary cylinder dryer
GB1063401A (en) * 1965-01-01 1967-03-30 Planters Engineering Company L Improvements in or relating to rollers incorporating a heating means
US3228462A (en) * 1965-04-09 1966-01-11 Hupp Corp Heat exchange apparatus
DE1568612A1 (de) * 1966-10-28 1970-04-02 Bayer Ag Verfahren zur Herstellung von 2,2,2-Trichloraethylidenanilinen
US4050510A (en) * 1973-04-27 1977-09-27 Helmuth Theysohn Calender heating roll
USRE30302E (en) 1973-11-08 1980-06-10 Hot oil drum
DE2658380B2 (de) * 1976-12-23 1979-02-08 Grapho-Metronic Mess- Und Regeltechnik Gmbh & Co Kg, 8000 Muenchen Farbwalze für Druckmaschinen
US4183298A (en) * 1977-12-23 1980-01-15 Roland Offsetmaschinenfabrik Faber & Schleicher Ag Water cooled ink roller for printing presses
DE3242066A1 (de) * 1982-11-13 1984-05-17 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Kuehlwalze mit vorgewaehlten unterschiedlichen kuehlzonen

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0583667A1 (fr) * 1991-01-10 1994-02-23 Belgium Tool And Die Company Appareil d'impression
KR101154861B1 (ko) * 2009-10-29 2012-06-18 스미도모쥬기가이고교 가부시키가이샤 가속입자 조사설비

Also Published As

Publication number Publication date
JPH0549029B2 (fr) 1993-07-23
DE3521424C1 (de) 1986-06-12
EP0205802A3 (en) 1987-09-16
ATE42503T1 (de) 1989-05-15
JPS6285946A (ja) 1987-04-20
EP0205802B1 (fr) 1989-04-26
US4712475A (en) 1987-12-15

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