Device and process for cleaning web-squeezing rollers at output from a carding machine
AssigneeMarzoli S.p.A.
InventorsSilvano Patelli, Massimo Galli, Giovanni Battista Pasini
Life of this patent
Estimating the term…
Abstract
Device and process for cleaning web-squeezing rollers (5, 6) at output from a carding machine, and their scraper blades (17), in which the said blades are mounted so that they can move tangentially away from and up to the web-squeezing rollers (5, 6) and are equipped with nozzles (29) for blowing fluid into the gaps between the blades (17) and the rollers (5, 6) for removal of the material that accumulates in the said gaps.
Claims8
Device for the removal and cleaning of a web (3) produced by a carding machine, the web (3) being removed from a cloth-covered surface of a doffer (2) by a stripper cylinder (4), being conveyed to a compacting assembly consisting of a pair of web-squeezing cylinders or rollers (5, 6) which are subjected to the action of scraper blades (17) to maintain the said web-squeezing rollers free from possible windings of fibres, the said device being characterized in that the scraper blades (17) are set on supporting elements (20) for movement of said scraper blades tangentially away from and alternatively close to the web-squeezing rollers (5, 6) during normal operation of the carding machine, the supports (20) being provided with a plurality of nozzles (29) for blowing compressed air or other fluid into gaps between the blades (17) and the rollers (5, 6) for removal of the material that accumulates at the point of contact between the blades and the rollers.
A process for the removal and cleaning of a web produced by a carding machine comprising the steps of:
- removing the web from the carding machine with a cloth-covered doffer,
- removing the web from the doffer with a stripper cylinder,
- conveying the web from the stripper cylinder to a compacting assembly consisting of a pair of web-squeezing cylinders or rollers,
- cleaning the web-squeezing cylinders or rollers with scraper blades and a plurality of nozzles attached to supporting elements by moving the scraper blades tangentially away from and alternatively close to the web-squeezing cylinders or rollers and by blowing compressed air or other fluid through the nozzles and into gaps formed between the scraper blades and the web-squeezing cylinders or rollers without interrupting normal machine operations.
Dependencies are inferred from the claim text.