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Method and apparatus for forming continuous cigarette rods

  • US 5,085,229 A
  • Filed: 05/21/1990
  • Issued: 02/04/1992
  • Est. Priority Date: 05/25/1989
  • Status: Expired due to Term
First Claim
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1. Apparatus for forming a continuous rod in cigarette manufacture, comprising:

  • a conveyor belt;

    air flow suction means capable of conveying a flow of tobacco particles with the aspirated air and of concentrating these particles in the form of a layer pressed against said conveyor belt; and

    means for controlling the thickness of said layer of tobacco comprising;

    a trimmer,first measurement means before said trimmer for measuring the porosity of said layer of tobacco,second measurement means before said trimmer for measuring the height of said layer of tobacco,signal processing means capable of producing a control parameter starting from measurement signals transmitted by said first and second measurement means, andadjustment means reacting to the instantaneous value of said parameter for adjusting the action of said trimmer.

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