Method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber

Abstract

An apparatus 200 and method for selectively injecting fibre material from multiple chambers into a single chamber in blow room of a spinning facility is disclosed, which use short duration bursts of pressurized gaseous fluid from nozzles 208 located adjacent to openings 206 provided in each of the plurality of chambers 202, each chamber 202 holding a different type/batch of fibre material, to evacuate predetermined quantities of fibre materials from different chambers 202, and eject the evacuated material into a mixing chamber 204. Duration/frequency of the short duration bursts is controlled to evacuate the predetermined quantities from different chambers. The bursts of the pressurized gaseous fluid also enable opening of the fibre material and spreading the opened fibres in to the mixing chamber 204 resulting in cleaning and better mixing of the fibres.

We claim: 
     
         1 . An apparatus for selectively injecting fibre material from multiple chambers into a single chamber, comprising:
 a mixing chamber;   a plurality of chambers located adjacent the mixing chamber, each chamber holding a batch of fibre material; each chamber having an opening for extracting the fibre material, wherein each of the openings opens into the mixing chamber;   a plurality of nozzles located adjacent to the openings such that controlled jets of a pressurized gaseous fluid from the nozzles associated with at least two of the plurality of chambers results in evacuation of the fibre material from the corresponding chambers and spreading the evacuated fibre material into the mixing chamber resulting in mixing of the fibre material from the different batches held in the at least two chambers.   
     
     
         2 . The apparatus as claimed in  claim 1 , wherein the controlled jets of the pressurized gaseous fluid are bursts of short durations to enable opening of the fibre material and spreading the opened fibres in to the mixing chamber. 
     
     
         3 . The apparatus as claimed in  claim 1 , wherein the controlled jets of the pressurized gaseous fluid are of varying durations, wherein duration of jets from different nozzles associated with different chambers is controlled to evacuate predetermined quantities of fibre materials from different chambers to get different ratios of fibre materials from different batches. 
     
     
         4 . The apparatus as claimed in  claim 1 , wherein the mixing chamber is any of a circular shape and a polygon shape, and the plurality of chambers are located around the mixing chamber. 
     
     
         5 . The apparatus as claimed in  claim 3 , wherein the apparatus comprises a control means to facilitate the controlled jets of the pressurized gaseous fluid from different nozzles associated with different chambers. 
     
     
         6 . The apparatus as claimed in  claim 1 , wherein the pressurized gaseous fluid is air, or a mixture of air and a gas. 
     
     
         7 . A method for selectively injecting fibre material from multiple chambers into a single chamber, comprising the steps of:
 providing a mixing chamber;   providing a plurality of chambers located adjacent the mixing chamber, each chamber holding a batch of fibre material; each chamber having an opening for extracting the fibre material, wherein each of the openings opens into the mixing chamber;   providing a plurality of nozzles located adjacent to the openings;   generating controlled jets of a pressurized gaseous fluid from the nozzles associated with at least two of the plurality of chambers; wherein the jets of a pressurized gaseous fluid result in evacuation of the fibre material from the corresponding chambers and spreading the evacuated fibre material into the mixing chamber, thereby mixing of the fibre material from the different batches held in the at least two chambers.   
     
     
         8 . The apparatus as claimed in  claim 7 , comprising: controlling the jets of the pressurized gaseous fluid to create bursts of short durations that enable opening of the fibre material and spreading the opened fibres into the mixing chamber. 
     
     
         9 . The apparatus as claimed in  claim 8 , comprising: controlling duration of jets of the pressurized gaseous fluid to evacuate predetermined quantities of fibre materials from different chambers to get different ratios of fibre materials from different batches.