Method and apparatus for the production of filter rod sections o

Details Method and apparatus for the production of filter rod sections o Method and apparatus for the production of filter rod sections o

1974-12-05

1976-08-10

Drummond, Douglas J.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

93 1C, 93 77FT, 131261A, 156378, 156433, 156441, A24C 550

Patent

active

039740072

ABSTRACT:
Filter rod sections are produced by moving a tow of filamentary filter material past a device which showers the filaments with atomized plasticizer and by thereupon converting the thus treated tow into a rod-like filler which is wrapped to form a filter rod. The latter is severed to yield a succession of filter rod sections which are transported by a fluted drum to storage or to a machine for the production of filter-tipped smokers' products. Groups of filter rod sections are withdrawn from the flutes of the drum at regular intervals for weighing to thus determine the quantity of filter material and/or plasticizer. The results of the weighing operation are utilized to adjust the feeding mechanism for the tow and/or plasticizer if the measured quantities deviate from desired quantities. The feeding mechanism for the tow employs rolls which can be driven at a variable speed to thereby subject the filaments of the tow to a more or less pronounced stretching action. The feeding mechanism for the plasticizer employs a rotary brush which removes plasticizer from the periphery of a drum dipping into a supply of plasticizer, and a variable-speed drive for the drum.

REFERENCES:
patent: 2822024 (1958-02-01), Himmelheber et al.
patent: 3017309 (1962-01-01), Crawford et al.
patent: 3320110 (1967-05-01), Gallagher
patent: 3361137 (1968-01-01), Watson
patent: 3405717 (1968-10-01), Berger et al.
patent: 3741864 (1973-06-01), Greve
patent: 3779849 (1973-12-01), Beard et al.
patent: 3865016 (1975-02-01), Greve

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