Patent Application
20210269946
The present disclosure relates to the field of textile machinery. in particular, the present disclosure relates to machines used in blow room of a spinning facility. more particularly, it pertains to a method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber.
Background description includes information that may be useful in understanding the present invention. It is not an admission that any of the information provided herein is prior art or relevant to the presently claimed invention, or that any publication specifically or implicitly referenced is prior art.
Machines used in blow rooms of spinning facilities are well known in the art. When bales of fibre material, manmade or artificial, arrive at a spinning mill, these are subjected to various operations in the blow room to make the material suitable for spinning. As a general rule, operations in a blow room comprise: opening the bale, cleaning of the fibre material, mixing or blending the materials of different types or grades, dust removal and uniformly feeding the material to carding machines.
Blow room installations consist of a sequence of different machines to carry out the above mentioned operations. The natural or manmade fibre material is received in highly pressed form, i.e. in bales, and after removal from these bales it is passed through several stages where it is opened into smaller and smaller lumps in a gradual sequence, during which foreign matter gets loosened and separated. Typically, these machines consist either of spike rollers of varying sizes, or various types of mechanical beaters, which cause a considerable amount of long and good fibbers to break leading to loss in terms of quality of material.
Another important object of a blow room setup is mixing of different types of natural or manmade fibres. Mixing fibres with different characteristics, such as different staple length, gives much better yarn at controlled cost. Furthermore mixing of natural and manmade fibres can give much better physical characteristics, greater strength and longer life at the same time being cost effective. Different types of fibres with different characteristics need to be mixed properly and used to obtain better results in yarn making.
For mixing fibres with different characteristics, fibre material from different bales, after the bales of different types of fibre materials have been opened, is filled in different designated chambers, from where the different fibre materials is withdrawn in controlled manner depending on the requisite proportion such that different fibre materials get mixed in the desired proportion. Typically, fibre material is withdrawn by rotating spiked rollers fixed at bottom of the chambers. The withdrawn material is dropped on a common conveyor which carries away the material to a suction chute which carries away the material pneumatically for further processing.
Since the conventional methods for withdrawing fibre material from different chambers depends on spiked rollers, a considerable amount of long and good fibbers break leading to loss in terms of quality of material. Besides, the conventional process also suffers from other disadvantages. Since reduction in staple length is one of the important parameters that determine performance of a blow room system a method and apparatus for for selectively injecting fibre material from multiple chambers into a single chamber that does not lead to breakage of fibre shall improve overall efficiency of the blow room system.
Therefore, there is a requirement of an improved method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber as an alternative to conventional method and apparatus that use spiked rollers or beaters.
All publications herein are incorporated by reference to the same extent as if each individual publication or patent application were specifically and individually indicated to be incorporated by reference. Where a definition or use of a term in an incorporated reference is inconsistent or contrary to the definition of that term provided herein, the definition of that term provided herein applies and the definition of that term in the reference does not apply.
In some embodiments, the numbers expressing quantities of ingredients, properties such as concentration, reaction conditions, and so forth, used to describe and claim certain embodiments of the invention are to be understood as being modified in some instances by the term “about.” Accordingly, in some embodiments, the numerical parameters set forth in the written description and attached claims are approximations that can vary depending upon the desired properties sought to be obtained by a particular embodiment. In some embodiments, the numerical parameters should be construed in light of the number of reported significant digits and by applying ordinary rounding techniques. Notwithstanding that the numerical ranges and parameters setting forth the broad scope of some embodiments of the invention are approximations, the numerical values set forth in the specific examples are reported as precisely as practicable. The numerical values presented in some embodiments of the invention may contain certain errors necessarily resulting from the standard deviation found in their respective testing measurements.
As used in the description herein and throughout the claims that follow, the meaning of “a,” “an,” and “the” includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of “in” includes “in” and “on” unless the context clearly dictates otherwise.
The recitation of ranges of values herein is merely intended to serve as a shorthand method of referring individually to each separate value falling within the range. Unless otherwise indicated herein, each individual value is incorporated into the specification as if it were individually recited herein. All methods described herein can be performed in any suitable order unless otherwise indicated herein or otherwise clearly contradicted by context. The use of any and all examples, or exemplary language (e.g. “such as”) provided with respect to certain embodiments herein is intended merely to better illuminate the invention and does not pose a limitation on the scope of the invention otherwise claimed. No language in the specification should be construed as indicating any non-claimed element essential to the practice of the invention.
Groupings of alternative elements or embodiments of the invention disclosed herein are not to be construed as limitations. Each group member can be referred to and claimed individually or in any combination with other members of the group or other elements found herein. One or more members of a group can be included in, or deleted from, a group for reasons of convenience and/or patentability. When any such inclusion or deletion occurs, the specification is herein deemed to contain the group as modified thus fulfilling the written description of all Markus groups used in the appended claims.
A general object of the present disclosure is to improve blow room processes in spinning facilities.
An object of the present disclosure is to provide a selectively injecting fibre material from multiple chambers into a single chamber, and an apparatus to implement the proposed method, that does not cause breakage of fibres.
An object of the present disclosure is to provide a method for selectively injecting fibre material from multiple chambers into a single chamber, and an apparatus to implement the proposed method, that does not that adversely affect value of the fibre material due to breakage of fibres.
An object of the present disclosure is to provide a method for selectively injecting fibre material from multiple chambers into a single chamber and a machine to implement the proposed method that does not spiked rollers that cause breakage of fibre.
An object of the present disclosure is to provide a method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber that also help in opening the tufts of the fibre material without adversely affect value of the fibre material.
Aspects of the present disclosure relate to operations carried out in blow rooms of spinning facilities. Specifically, the present disclosure pertains to selectively injecting fibre material from multiple chambers into a single chamber, which includes controlled removal of different types of natural or manmade fibres having different characteristics available in different chambers and injecting them simultaneously in a common chamber to achieve a desired proportion of the different types of fibres. Specifically, the present disclosure provides a method, and an apparatus to implement the proposed method, for selectively injecting fibre material from multiple chambers into a single chamber, which do not depend of spiked rollers used in conventional method and apparatuses, and therefore prevent breakage of fibre that deteriorate quality of the fibre material.
In an aspect, the disclosed method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber are based on use of bursts of pressurized air or gas or their mixture, and the bursts of pressurized air or gas or their mixture also help in opening the tufts/lumps resulting in simultaneous cleaning and mixing of the fibres for better processing in subsequent stages.
In an aspect, the bursts of pressurized air or gas or their mixture, are created using nozzles located in each of the chambers that hold the fibre material of different types, against openings in the chambers. The bursts of compressed air result in the material exiting the chambers from the respective openings. Each of the openings in the respective chambers opens in a common chamber. Thus, fibre material from multiple chambers gets injected into a single common chamber, referred to as mixing chamber. In another aspect, quantity of fibre material exiting from the different chambers can be controlled by controlling duration and/or frequency of the bursts of compressed air in different chambers.
In an aspect, the disclosed apparatus for selectively injecting fibre material from multiple chambers into a single chamber comprises 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; and a plurality of nozzles located adjacent to the openings. In an aspect, the apparatus is further configured to enable controlled jets of a pressurized gaseous fluid from the nozzles such that the controlled jets 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.
In an aspect, 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.
In an aspect, the controlled jets of the pressurized gaseous fluid can be of varying durations and frequency, wherein duration and/or frequency of jets from different nozzles associated with different chambers can be controlled to evacuate predetermined quantities of fibre materials from different chambers to get different ratios of fibre materials from different batches.
In an aspect, the mixing chamber can be any of a circular shape and a polygon shape, and the plurality of chambers may be located around the mixing chamber.
In an aspect, the apparatus can comprise a control means to facilitate the controlled jets of the pressurized gaseous fluid from different nozzles associated with different chambers.
In an aspect, the pressurized gaseous fluid can be air, or a mixture of air and a gas.
An aspect of the disclosure relates to a method for selectively injecting fibre material from multiple chambers into a single chamber, which comprises the steps of: (i) providing a mixing chamber; (ii) 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; (iii) providing a plurality of nozzles located adjacent to the openings; and (iv) 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.
In an aspect, the proposed method may further include the step of 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.
In an aspect, the proposed method may further include the step of 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.
Various objects, features, aspects and advantages of the inventive subject matter will become more apparent from the following detailed description of preferred embodiments, along with the accompanying drawing figures in which like numerals represent like components.
The accompanying drawings are included to provide a further understanding of the present disclosure, and are incorporated in and constitute a part of this specification. The drawings illustrate exemplary embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.
The following is a detailed description of embodiments of the disclosure depicted in the accompanying drawings. The embodiments are in such detail as to clearly communicate the disclosure. However, the amount of detail offered is not intended to limit the anticipated variations of embodiments; on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the present disclosure as defined by the appended claims.
Each of the appended claims defines a separate invention, which for infringement purposes is recognized as including equivalents to the various elements or limitations specified in the claims. Depending on the context, all references below to the “invention” may in some cases refer to certain specific embodiments only. In other cases it will be recognized that references to the “invention” will refer to subject matter recited in one or more, but not necessarily all, of the claims.
Various terms are used herein. To the extent a term used in a claim is not defined, it should be given the broadest definition persons in the pertinent art have given that term as reflected in printed publications and issued patents at the time of filing.
Embodiments explained herein relate to operations carried out in blow rooms of spinning facilities. As stated earlier, one of the functions of a blow room is to mix different types of fibres with different characteristics such as different staple length, or mixing of natural and manmade fibres is done to get better yarn, greater strength and longer life at controlled cost. For mixing fibres with different characteristics, fibre material from different bales, after the bales of different types of fibre materials have been opened, is filled in different designated chambers, from where the different fibre materials is withdrawn in controlled manner depending on the requisite proportion such that different fibre materials get mixed in the desired proportion.
Typically, fibre material is withdrawn by rotating spiked rollers fixed at bottom of the chambers. The spiked rollers corresponding to different chambers may be rotated at different speeds to regulate amount of material drawn to get desired proportion of material from different chambers. The withdrawn material is dropped in a common chute from where is carried away pneumatically for further processing.
The rollers 108 in the conventional machine 100 rotate at uniform speed to pull out material from different chambers 104 at same rate. Therefore, to achieve different ratios, multiple chambers may be filled with same type/grade of material. For example, if two types/grades of fibre materials, say material A and material B, are to be mixed at 1:3 ratio, the material A may be filled in one chamber 104 and the material B may be filled in three chambers 104. Further, as the conveyor 110 is a single moving conveyor covering all the chambers 104, the fibre material extracted from the different chambers 104 falls one over other sequentially, as the conveyor 110 passes under the different chambers 104, forming layers of different types/grades of material. Therefore, no mixing of fibre material, which is still in tufts/lumps form, takes place as the material is extracted from the chambers 104, and has to be carried out as a subsequent step/operation.
While the spiked rollers 108 pulled out the fibre material from the chambers 104, the spikes also open the lumps of the fibres. However, the spikes cause breakage of fibres adversely affecting value of the fibre material.
Embodiments of the present disclosure provide an apparatus and method for selectively injecting fibre material from multiple chambers into a single chamber, which do not depend of spiked rollers used in conventional method and apparatuses, and therefore prevent breakage of fibre that deteriorate quality of the fibre material.
In an aspect, the disclosed method and apparatus are based on use of bursts of pressurized air or gas or their mixture, and the bursts of pressurized air or gas or their mixture also help in opening the tufts/lumps resulting in simultaneous cleaning and mixing of the fibres for better processing in subsequent stages.
Referring to
In an aspect, the plurality of chambers 202 and the mixing chamber 204 may be configured such that each of the openings 206 opens into the mixing chamber 204. It is to be appreciated that while the exemplary illustration of
The apparatus can further include a plurality of nozzles, such as nozzles 208-1, 208-2, 208-3208-5 (collectively referred to as nozzle(s) 208), that are located adjacent to the openings 206. For example, the nozzle 208-1 is located adjacent the opening 206-1 of the chamber 202-1.
In an aspect, the apparatus 200 can be further configured to enable controlled jets of a pressurized gaseous fluid from the nozzles 208 such that the nozzles 208 associated with two at least two of the chambers 202, fibre material of which chambers 202 have to be mixed, provide the controlled jets at the time of operation of the apparatus. In practice, there may be more than two nozzles 208 corresponding to more than two chambers 202 from which fibre material has to be mixed, working at a given time. The controlled jets of compressed gaseous fluid from the nozzles 208 results in evacuation of the fibre material from the corresponding chambers 202, and the evacuated fibre material is spread into the mixing chamber 204 resulting in mixing of the fibre material from the different batches held in the chambers 202 whose nozzles are giving the jets of gaseous fluid.
In an aspect, the controlled jets of the pressurized gaseous fluid from the nozzles 208 can be bursts of short durations, and their duration and/or frequency can be varied to achieve a desired rate of evacuation of the fibre material from the corresponding chamber 202. Thus, the predetermined quantities of fibre materials can be evacuated over a period of time from different chambers 202 to get desired ratio of different types of fibre materials from different batches stored in different chambers 202. As can be appreciated, it is also possible to store one type of fibre material in more than one chamber 202, and sum total of material evacuated from these chambers can determine ratio of that material in the final mixture.
In an aspect, the apparatus can comprise a control means to facilitate the controlled jets of the pressurized gaseous fluid from different nozzles 208 associated with different chambers 202. This includes controlling duration and frequency of the bursts to achieve evacuation of desired quantities of fibre material from the corresponding chambers 202.
As would be evident to those skilled in art, the fibre materials filled in different chambers 202 may include many unopened lumps/tufts of the fibres which need to be opened to ensure cleaning and proper mixing of fibres of different materials. The jets of air may interact with the tuffs/lumps of fibre material by directly hitting and penetrating the lumps thereby spreading the fibre material to a larger space to open the lump, or may interact by pulling the fibres from the lumps on account of pulling action of the pressurized air flowing over the lump. In either case, action of bursts of air jet simultaneously result in opening of fibre material and spreading it while evacuating the material the chamber 202. Thus, the proposed method for controlled and directed filling of chambers with fibre material also provides separation of fibre material resulting in loosening of any foreign material trapped by the fibres, leading to cleaning of the fibre material.
In an aspect, the pressurized gaseous fluid can be air, or a mixture of air and a gas. In an embodiment, the gaseous fluid used may be air, which is easily available and cheap to compress. Specifically, equipment to compress air is easily available, and is generally part of blow room facilities, such as for bale opening machine. Thus, the source of the pressurized gaseous fluid may be an external source such as compressed air source of the blow room facilities, or may be inbuilt with the apparatus 200. In an alternate embodiment, it may be a combination of external source and an inbuilt source.
An aspect of the disclosure relates to a method for selectively injecting fibre material from multiple chambers into a single chamber for mixing of different batches/types of fibre materials. As shown at
In an aspect, the method 300, at the step 306 can include providing a plurality of nozzles, such as nozzles 208 shown in
In an aspect, the proposed method 300 may further include the step of 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 204.
In an aspect, the proposed method may further include the step of controlling duration and frequency of jets of the pressurized gaseous fluid to evacuate predetermined quantities of fibre materials from different chambers 202 to get different ratios of fibre materials from different batches.
Thus, the proposed method 300 and apparatus 200 for selectively injecting fibre material from multiple chambers into a single chamber for mixing of different batches/types of fibre materials overcomes drawbacks of the conventional methods and machines by replacing the spiked rollers by controlled bursts of compressed air. The controlled bursts of compressed air enable evacuation of predetermined quantities of different types/batches of materials to provide a mixture of desired proportion, and also provides separation of fibre material resulting in loosening of any foreign material trapped by the fibres, leading to cleaning of the fibre material, and better mixing of the separated fibres.
While the foregoing describes various embodiments of the invention, other and further embodiments of the invention may be devised without departing from the basic scope thereof. The scope of the invention is determined by the claims that follow. The invention is not limited to the described embodiments, versions or examples, which are included to enable a person having ordinary skill in the art to make and use the invention when combined with information and knowledge available to the person having ordinary skill in the art.
The present disclosure improves blow room processes in spinning facilities.
The present disclosure provides a method for selectively injecting fibre material from multiple chambers into a single chamber, and an apparatus to implement the proposed method, that does not cause breakage of fibres.
The present disclosure provides a method for selectively injecting fibre material from multiple chambers into a single chamber, and an apparatus to implement the proposed method, that does not that adversely affect value of the fibre material due to breakage of fibres.
The present disclosure provides a method for selectively injecting fibre material from multiple chambers into a single chamber and a machine to implement the proposed method that does not spiked rollers that cause breakage of fibre.
The present disclosure provides a method and apparatus for selectively injecting fibre material from multiple chambers into a single chamber that additionally help in opening the tufts of the fibre material without adversely affect value of the fibre material.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201821025611 | Jul 2018 | IN | national |
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/IB2019/053307 | 4/22/2019 | WO | 00 |
