US3810272A - Fluid spreading and wiping device for etching machines for rotogravure cylinders - Google Patents

Fluid spreading and wiping device for etching machines for rotogravure cylinders Download PDF

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Publication number
US3810272A
US3810272A US00243367A US24336772A US3810272A US 3810272 A US3810272 A US 3810272A US 00243367 A US00243367 A US 00243367A US 24336772 A US24336772 A US 24336772A US 3810272 A US3810272 A US 3810272A
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US
United States
Prior art keywords
arms
wiping
wiping roller
fluid spreading
bearing blocks
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
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US00243367A
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English (en)
Inventor
K Baumgartner
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Individual
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Individual
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Publication date
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Publication of US3810272A publication Critical patent/US3810272A/en
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/08—Apparatus, e.g. for photomechanical printing surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41C—PROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
    • B41C1/00—Forme preparation
    • B41C1/18—Curved printing formes or printing cylinders

Definitions

  • the invention concerns a fluid spreading and wiping device for etching machines for rotogravure cylinders, comprising a wiping roller attached to the etching trough by two arms and rolling on the rotogravure cylinder.
  • Wiping devices extending for the full width of the rotogravure cylinder and imparted with a reciprocating wiping motion are known. Wiping devices have also been provided with wiping blades or rollers, made of soft and porous material to remove the loose iron cloride and minimize its corrosive action.
  • a slow reciprocating motion of the wiping device results in an uneven wiping action, due to the timing of the motion at each ends of the device.
  • a rapid reciprocating motion of the wiping device can cause damage to the wax coating of the rotogravure cylinder.
  • the object of the present invention is to eliminate the above-mentioned disadvantages, by imparting the wiping device with a circular motion which covers every point of the plate cylinder evenly, in every direction rather than by a two ways reciprocating motion.
  • the invention is characterized by a fluid spreading device, placed alongside the wiping roller removably attached to two arms themselves suspended each by their pivot to eccentrics, said eccentrics been oriented parallelly to the wiping roller and rotating within a bearing-block, each eccentric been attached to a bevel gear engaging a mating bevel gear fixed to a coaxial shaft revolving within the bearing-block, so that, a rotation of the shaft, turning the eccentrics to which the wiping roller is suspended by the arms, will impart, in the plane of the arms, a circular motion to the wiping roller.
  • FIG. 1 is a partial cross section view of the wiping roller, with the arms and the eccentric, out along the axis l-l of FIG. 2.
  • HO. 2 is a side view of the wiping roller with a cross section through the eccentrics.
  • the fluid spreading and wiping device comprises a wiping roller 1, movably supported at each end by an arm 3, and rolling on the rotogravure cylinder 2, which must be etched.
  • a dispenser 4 in the form of an elongated hood, is placed close to the wiping roller l.
  • the arms 3 are attached by a pivot, each to a pair of eccentrics 5.
  • Each eccentric 5 is oriented parallelly to the wiping roller 1 and supported within a bearing-block 6 by a shaft 7 on which a bevel gear 8 is secured. The latter engages a mating bevel gear 9 secured on the shaft 10.
  • the shafts 10 are, each, coaxially mounted within the bearing-block 6 and are supporting a driving wheel ll placed on the outside of the etching trough. By revolving the shaft I0, by means of the wheel II, the eccentrics 5, through the arms 3, are imparting, in the plane of the arms 3, a circular motion to the wiping roller 1.
  • the bearing-blocks 6 are movably attached to the walls 12 of the etching trough.
  • a lever 13 is attached on each of the bearing-block 6, to adjust the pressure of the roller on the rotogravure cylinder.
  • the bearings 14 of the wiping roller 1 are provided with sealing rings 15 and drop collecting grooves 16.
  • the bearings 14 are secured to the arms 3 by three externally accessible screws 17. This is allowing a rapid change of the wiping roller 1.
  • a fluid spreading and wiping device for etching machines for rotogravure cylinders comprising a pair of spaced apart arms, a wiping roller extending between and rotatably supported by said arms, a fluid spreading means positioned alongside said wiping roller and detachably connected to said pair of arms, bearing blocks, means supporting said bearing blocks and capable of being mounted on the etching machine, driven shafts each rotatably extending through a different one of said bearing blocks, a pair of bevel gears each fixedly attached to a different one of said driven shafts, eccentrics rotatably mounted in said bearing blocks parallel to said wiping roller, a second pair of bevel gears each meshing with one of said first pair of bevel gears and fixedly connected to a different one of said eccentrics for rotating the same, said arms being suspended from said eccentrics in a position for permitting said wiping roller to roll on the rotogravure cylinder in use whereby driving of said eccentrics will impart a circular motion to said wiping roller on the plane of said arms.
  • a fluid spreading and wiping device as claimed in claim 1 including driven wheels outside said bearing blocks and fixedly attached to said shafts.
  • a fluid spreading and wiping device as claimed in claim 1 including a lever attached to one of said bearing blocks whereby said bearing block can be moved for adjusting the position of and pressure of said wiping roller on the rotogravure cylinder in use.
  • a fluid spreading and wiping device as claimed in claim 1 including hearings on said wiping roller, sealing rings provided on said bearings, said bearings having drop collecting grooves and screws detachably connect said bearings to said arms.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • ing And Chemical Polishing (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
  • Printing Plates And Materials Therefor (AREA)
  • Manufacture Or Reproduction Of Printing Formes (AREA)
  • Coating Apparatus (AREA)
US00243367A 1971-05-27 1972-04-11 Fluid spreading and wiping device for etching machines for rotogravure cylinders Expired - Lifetime US3810272A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH774671A CH524458A (de) 1971-05-27 1971-05-27 Wisch- und Flüssigkeitsverteilvorrichtung an Tiefdruckzylinderätzmaschine

Publications (1)

Publication Number Publication Date
US3810272A true US3810272A (en) 1974-05-14

Family

ID=4329851

Family Applications (1)

Application Number Title Priority Date Filing Date
US00243367A Expired - Lifetime US3810272A (en) 1971-05-27 1972-04-11 Fluid spreading and wiping device for etching machines for rotogravure cylinders

Country Status (7)

Country Link
US (1) US3810272A (enrdf_load_stackoverflow)
JP (1) JPS5110122B1 (enrdf_load_stackoverflow)
CA (1) CA963368A (enrdf_load_stackoverflow)
CH (1) CH524458A (enrdf_load_stackoverflow)
DE (1) DE2216794A1 (enrdf_load_stackoverflow)
FR (1) FR2138641B1 (enrdf_load_stackoverflow)
GB (1) GB1368694A (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543895A (en) * 1946-12-28 1951-03-06 Ibm Coating device for engraved cylinders
US2926076A (en) * 1957-05-14 1960-02-23 Master Etching Machine Company Etching

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS453547Y1 (enrdf_load_stackoverflow) * 1966-04-07 1970-02-18

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543895A (en) * 1946-12-28 1951-03-06 Ibm Coating device for engraved cylinders
US2926076A (en) * 1957-05-14 1960-02-23 Master Etching Machine Company Etching

Also Published As

Publication number Publication date
DE2216794A1 (de) 1972-12-14
GB1368694A (en) 1974-10-02
FR2138641A1 (enrdf_load_stackoverflow) 1973-01-05
FR2138641B1 (enrdf_load_stackoverflow) 1973-07-13
CA963368A (en) 1975-02-25
JPS5110122B1 (enrdf_load_stackoverflow) 1976-04-01
CH524458A (de) 1972-06-30

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