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Method and apparatus for placement of a doctor blade against an ink-dispensing roller

  • US 5,388,515 A
  • Filed: 04/26/1993
  • Issued: 02/14/1995
  • Est. Priority Date: 04/25/1992
  • Status: Expired due to Fees
First Claim
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1. A method for placement of a doctor blade against an ink-dispensing roller in a web-fed rotary press, said method comprising:

  • providing at least a first doctor blade bar having at least a first doctor blade supporting base body;

    resiliently supporting a first doctor blade in said doctor blade supporting base body;

    moving said doctor blade along a first curved path of travel corresponding to one arm of a parabola toward an ink dispensing roller;

    bringing a working edge of said doctor blade into linear contact against a surface of an ink dispensing roller at a contact point remote from a final working position of said doctor blade, said contact point being at an axis of symmetry of said parabola;

    moving said doctor blade along a second path of travel along a jacket surface of an ink dispensing roller into said final working position; and

    pushing said doctor blade into said doctor blade supporting base body while moving said doctor blade along said second path of travel along a jacket surface into said doctor blade working position.

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