EP0293551B1 - Walze für Druckmaschinen, Kopierer, Film- und Fotoentwicklungsmaschinen oder dergleichen - Google Patents

Walze für Druckmaschinen, Kopierer, Film- und Fotoentwicklungsmaschinen oder dergleichen Download PDF

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Publication number
EP0293551B1
EP0293551B1 EP88101737A EP88101737A EP0293551B1 EP 0293551 B1 EP0293551 B1 EP 0293551B1 EP 88101737 A EP88101737 A EP 88101737A EP 88101737 A EP88101737 A EP 88101737A EP 0293551 B1 EP0293551 B1 EP 0293551B1
Authority
EP
European Patent Office
Prior art keywords
roller
machines
printing
fibers
resin
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
EP88101737A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0293551A3 (en
EP0293551A2 (de
Inventor
Alfred Fröhlich
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.)
Individual
Original Assignee
Individual
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=6808857&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP0293551(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Individual filed Critical Individual
Priority to AT88101737T priority Critical patent/ATE82199T1/de
Publication of EP0293551A2 publication Critical patent/EP0293551A2/de
Publication of EP0293551A3 publication Critical patent/EP0293551A3/de
Application granted granted Critical
Publication of EP0293551B1 publication Critical patent/EP0293551B1/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
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N7/00—Shells for rollers of printing machines
    • B41N7/06—Shells for rollers of printing machines for inking rollers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/002—Cleaning arrangements or devices for dampening rollers
    • 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
    • B41N—PRINTING PLATES OR FOILS; MATERIALS FOR SURFACES USED IN PRINTING MACHINES FOR PRINTING, INKING, DAMPING, OR THE LIKE; PREPARING SUCH SURFACES FOR USE AND CONSERVING THEM
    • B41N2207/00—Location or type of the layers in shells for rollers of printing machines
    • B41N2207/02—Top layers

Definitions

  • the invention relates to a roller for printing machines, copiers, film and photo processing machines or the like according to the preamble of claim 1.
  • rollers are used for a variety of purposes, including with the aim of promoting moisture. This happens, for example, with washing rollers in printing machines. They bring a petrol-like washing liquid onto the printing blanket. Another application is the dampening system in offset machines. While with washing rollers pure rubber or rubber-like Material is used, dampening rollers are usually covered with a moisture-absorbing material or plastic coating.
  • the invention has for its object to provide a roller for printing machines, copiers, film and photo processing machines or the like, which is effective Function guaranteed, in particular a defined liquid flow allowed and can be easily cleaned if necessary.
  • a suitable rubber mixture is used in the usual way, the composition and its physical properties depending on the intended use.
  • a washing roller is molded from highly abrasion-resistant, relatively hard material, while a dampening roller is made from much softer material.
  • the proportion of fibers is 2 to 25%. In the case of washing rollers, the proportion of fibers will be in the lower region and in the case of dampening rollers in the upper region. They give the surface of a roller a structure that is conducive to moisture management.
  • the fibers are relatively fine. They have a diameter between 15 and 30 ⁇ m, which avoids a scratching effect. They are also relatively short, in the range of about 0.2 to 0.8 mm, preferably 0.5 mm in length. This allows them to be distributed evenly in the desired manner.
  • the fibers can easily in the structure and dimensions described in the desired Way when the rollers are ground.
  • the fiber admixing described results in a fine brush-like roller surface, which on the one hand has no adverse effects on the printing process, but on the other hand ensures the desired liquid flow.
  • the degree of liquid guidance can also be adjusted by the proportion of the fibers added.
  • the roller according to the invention can also be easily cleaned. If ink is applied to the dampening roller in an offset printing press, the operator can easily remove the ink without having to remove the roller. Even the roll can be removed within a relatively short time, so that there is only a minimal interruption in production.
  • Suitable plastic fibers that are completely unprepared are used as fibers. However, for an effective connection with the elastomeric material of the roller, a resin or a resin-like substance is added to the mixture.
  • the fibers are preferably made of polyamide.
  • the offset printing machine according to FIG. 1 has in a known manner a forme cylinder 10, a transfer cylinder 11 covered with a rubber blanket, a printing cylinder 12, inking rollers 13 and dampening rollers 14. Paper 15 to be printed is guided between the transfer cylinder and the printing cylinder.
  • a dampening roller 14 can be seen in FIG. It consists of a rubber mixture of natural or nitrile rubber with a specified hardness. Polyamide fibers with a length of approximately 0.5 mm and a diameter of 15 to 30 ⁇ are mixed into this rubber mixture. Their share in the total amount of material is about 15%. The fibers are indicated at 16 in FIG. 2. They protrude a bit above the surface, as is how Fig. 3 results. The protrusion is naturally limited by its length.
  • the dampening rollers of the structure described ensure optimal liquid guidance, which depends on the proportion of the fibers added. If there is a possible application of ink to the dampening rollers 14, they can be cleaned relatively easily and quickly.
  • the roller described is not limited to its use in printing presses or the like, but can be used wherever moisture or liquid is to be transferred to another object with the aid of a roller.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Dry Development In Electrophotography (AREA)
  • Wet Developing In Electrophotography (AREA)
EP88101737A 1987-06-05 1988-02-06 Walze für Druckmaschinen, Kopierer, Film- und Fotoentwicklungsmaschinen oder dergleichen Expired - Lifetime EP0293551B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT88101737T ATE82199T1 (de) 1987-06-05 1988-02-06 Walze fuer druckmaschinen, kopierer, film- und fotoentwicklungsmaschinen oder dergleichen.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8708008U 1987-06-05
DE8708008U DE8708008U1 (de) 1987-06-05 1987-06-05 Walze für Druckmaschinen, Kopierer od.dgl.

Publications (3)

Publication Number Publication Date
EP0293551A2 EP0293551A2 (de) 1988-12-07
EP0293551A3 EP0293551A3 (en) 1989-11-29
EP0293551B1 true EP0293551B1 (de) 1992-11-11

Family

ID=6808857

Family Applications (1)

Application Number Title Priority Date Filing Date
EP88101737A Expired - Lifetime EP0293551B1 (de) 1987-06-05 1988-02-06 Walze für Druckmaschinen, Kopierer, Film- und Fotoentwicklungsmaschinen oder dergleichen

Country Status (5)

Country Link
EP (1) EP0293551B1 (enExample)
AT (1) ATE82199T1 (enExample)
DE (2) DE8708008U1 (enExample)
ES (1) ES2035877T3 (enExample)
GR (1) GR3006515T3 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4126142A1 (de) * 1991-08-08 1993-02-11 Roland Man Druckmasch Feuchtwalze
DE4326856A1 (de) * 1993-08-11 1995-02-16 Westland Gummiwerke Gmbh & Co Walze zur Verwendung in Feuchtwerken von Offset-Druckmaschinen bzw. Offset-Druckverfahren

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE184157C (enExample) *
DE1130830B (de) * 1960-03-26 1962-06-07 Agfa Ag Vorrichtung zum Reinigen der Farbuebertragungszylinder oder Baender an Druckmaschinen, insbesondere an Rotations-Gummidruckmaschinen
DE1819851U (de) * 1960-04-28 1960-10-20 Luise Beutel Feuchtwalze.
NL282033A (enExample) 1961-10-16
GB1198863A (en) * 1967-07-20 1970-07-15 Maclellan Rubber Ltd Improvements relating to Printing Rollers
US3808652A (en) 1968-12-31 1974-05-07 D Elliott Treatment of yarns
US3635158A (en) * 1969-10-06 1972-01-18 William D Budinger Roller for printing press
US3808657A (en) 1972-01-26 1974-05-07 Marathon Rollers Inc Hickey roll and method of making same
FR2188502A5 (en) * 1972-06-02 1974-01-18 Farnier Rene Roughened, plush inking roller - for optimum inkingon letterpress/offset rotary/sheet-fed machines
GB1458630A (en) * 1973-11-28 1976-12-15 Dayco Corp Hickey roller and method of making same
US3998681A (en) * 1973-11-28 1976-12-21 Dayco Corporation Method of making a hickey roller
US4492012A (en) 1982-01-13 1985-01-08 Samuel Bingham Company Method of making roll for use in printing
JPS60250991A (ja) 1984-05-28 1985-12-11 Mitsubishi Heavy Ind Ltd 印刷用湿しロ−ラ

Also Published As

Publication number Publication date
EP0293551A3 (en) 1989-11-29
EP0293551A2 (de) 1988-12-07
ES2035877T3 (es) 1993-05-01
ATE82199T1 (de) 1992-11-15
DE3875802D1 (de) 1992-12-17
DE8708008U1 (de) 1987-09-03
GR3006515T3 (enExample) 1993-06-30

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