Apparatus for rolling uniting bands around groups of rod-shaped

Details Apparatus for rolling uniting bands around groups of rod-shaped Apparatus for rolling uniting bands around groups of rod-shaped

1988-01-15

1989-05-02

Millin, V.

Tobacco

Cigar or cigarette making

Tip or mouthpiece applying or forming

A24C 552

Patent

active

048258822

ABSTRACT:
Apparatus for convoluting adhesive-coated uniting bands around groups of coaxial plain cigarettes and filter rod sections in a filter tipping machine has a drum-shaped conveyor whose peripheral surface has equidistant axially parallel flutes for discrete groups and suction ports to attract uniting bands behind the groups as well as to attract the groups to the respective flutes during certain parts of each revolution of the conveyor. Successive groups are caused to roll about their own axes to thereby convert the adjacent uniting bands into tubes during travel through an arcuate gap which is defined by the peripheral surface of the conveyor and the adjacent concave surface of a stationary rolling member. In order to prevent abrupt setting of successive groups into rotary motion about their axes, the apparatus employs a rotor with radially extending projections which are adjacent the inlet of the gap and are caused to orbit at a speed less than the peripheral speed of the conveyor so that each group is set in rotary motion about its axis in two stages, first at a lower speed by a projection and thereupon at a higher speed by the concave surface. This reduces the likelihood of defacing and/or otherwise affecting the desirable characteristics of the groups of rod-shaped articles and of the uniting bands.

REFERENCES:
patent: 3483873 (1969-12-01), Hinzmann
patent: 3527234 (1970-09-01), Hinzmann
patent: 3564902 (1971-02-01), Heitmann
patent: 4262680 (1981-04-01), Hinzmann

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