US 4,697,603 AGranted

Apparatus for building a stream of fibrous material

AssigneeHauni-Werke Korber & Co. KG

InventorsJurgen Steinhauer, Wolfgang Steiniger

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Abstract

The distributor of a cigarette rod making machine delivers particles of tobacco into a stream building zone wherein the particles are accumulated into a continuous stream. The surplus of tobacco is removed by an adjustable trimming device and the removed surplus is transported back to the distributor for reuse. The quantity of removed surplus is measured by a weighing device whose transducer transmits signals which are compared with signals denoting the position of the trimming device, and the resulting signals are used to adjust the rate of delivery of tobacco particles to the stream building zone. The weighing device has a frame which carries two pulleys for an endless belt. The frame can pivot about the axis of one of the pulleys or it can be tiltably mounted on a fulcrum between the two pulleys.

Claims8

Dependent claims

Apparatus for forming a stream of fibrous material, such as tobacco, comprising a source of fibrous material;

means defining a stream building zone;
adjustable means for feeding fibrous material from said source to said zone wherein the material accumulates into a continuous stream containing a surplus of material;
adjustable means for removing the surplus from the stream, said removing means being movable with reference to said zone;
a signal generating device for monitoring the position of said removing means relative to said zone;
means for returning the removed surplus to said source;
signal generating means for monitoring the quantity of the removed surplus, including a weighing device for fibrous material;
signal comparing means for generating signals denoting the difference between the signals from said monitoring means and said monitoring device;
and means for adjusting said feeding means in response to signals from said signal comparing means.

5 more elements

Dependencies are inferred from the claim text.