US 4,300,711 AGranted

Apparatus for the pneumatic transport of textile band material

AssigneeLuwa AG

InventorsHans P. Sutter, Josef Hartmann

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Abstract

Tubes or conduits, guiding slubbing or roving or the like during pneumatic transport thereof, terminate at a box or cabinet which delimits a compartment connected with the suction side of a ventilator. Within the compartment there is provided for each tube an elongate delay space or chamber, through which pass the slubbing while supported by guide elements, whereas the slubbing-transport air flows off into the compartment by means of throughpass openings. Between outfeed or outlet openings, through which the slubbing departs from the box, and the delay spaces or chambers there are provided dam-up spaces through which there does not flow the transport air and into which there also cannot enter any ambient or outside air, since the band-outlet openings are closed by closure elements, typically pairs of rolls acting as sealing elements. The dam-up spaces permit a brief storage of the incoming slubbing or the like. The box has a tiltable cover, by means of which access to the interior of the box is afforded in order to draw-in the slubbing.

Claims13

Dependent claims

An apparatus for the pneumatic transport of textile band material, especially slivers, slubbings or rovings, comprising:

at least one transport tube through which there is transported the textile band in a predetermined direction of travel;
said transport tube having a delivery end;
means defining a compartment;
said delivery end of said transport tube flow communicating with said compartment;
ventilator means having a suction side operatively connected with said compartment;
said means defining said compartment being provided with a band outlet opening for the exit of the textile band therefrom;
means for supporting the textile band provided for said compartment;
said supporting means for the textile band defining at least one elongate band delay chamber which directly merges with said delivery end of the transport tube;
said band delay chamber extending in the direction of travel of the textile band;
said band delay chamber being formed by guide elements constituting at least part of said textile band-supporting means;
said guide elements being structured so as to delimit therebetween throughpass openings whose total cross-sectional area is greater than the inner cross-sectional area of the transport tube;
and
revolving sealing means operatively associated with said band outlet opening.

10 more elements

Dependencies are inferred from the claim text.