Plate and blanket presor

Discussion in 'Heidelberg Printing Presses' started by Nitin, Nov 24, 2021.

  1. Nitin

    Nitin Member

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    I haw a problem in gto 52 plat and blenket pressure I seen plat and blenket selender barier is lining and print pepar lining help please whai is pressure in blenket and pleat in mm roler settings is right
     

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  2. junker1984

    junker1984 Senior Member

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    Looks like you're dealing with cylinder bearing/gear streaking.
     
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  3. mantman

    mantman Senior Member

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    If your form rollers tend to move left/right put a small shim and see if it stops streaking
     
  4. junker1984

    junker1984 Senior Member

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    Well said, Mantman...but look at the consistent gear tooth streaking. Could also be an oscillator drive issue, should pull cover and closely examine ALL gearing from inker down to drive.
     
  5. turbotom1052

    turbotom1052 Senior Member

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    the visible gear chatter marks on the clean bearer would point to Steves point. Looks bad enough to not run the press until its fixed, for fear of additional parts carnage.
     
  6. mantman

    mantman Senior Member

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    What could cause this gear streak?
     
  7. junker1984

    junker1984 Senior Member

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    Worn oscillator bushing? Sheared pin in oscillator stub shaft? Failed universal bearing in oscillator drive arm, causing ball bearings to drop into gear train? Failed cylinder bearing? Many potential areas to be concerned about, more information needed to try to find a starting point. How many printing units? Is streaking limited to one unit? As mentioned previously, one would have to pull side covers to visibly examine for obvious assembly/bearing failure.
     

  8. Adil

    Adil Member

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    Les traits au niveau des cordons correspondants que les cordons ne sont pas en contact permanent, ce qui est anormal.
    Pour avoir une bonne qualité d'impression, les cordons des cylindres plaque et blanchet doivent être en contact permanent entre eux au moment de l'impression.
    Ce problème peut être causé par un mauvais habillage sur le cylindre porte blanchet (trop épais) qui provoque une usure et un jeu dans les roulements des roulements des cylindres.
    Il faut alors vérifier l'habillage du cylindre porte-blanchet et contrôler les roulements des roulements des cylindres (Ensuite les changer s'ils sont défectueux).
     
    Last edited: Dec 7, 2021 at 9:12 AM
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