CLIAMS:1) A silk yarn production machine for producing silk yarn in wound condition from silk filaments obtained from cocoons, the said machine characterized by a set of gear trains with a Cam arrangement drivably mounted to operate multiple number of spindles, the said arrangement is being fed with auxiliary power sources such as batteries.
2) The yarn production machine as claimed in claim 1 wherein said auxiliary power sources are optionally chargeable by solar power means.
3) The yarn production machine as claimed in claim 1 is dispensed with plurality of rings in combination for achieving the twisting action of plurality of silk filaments for imparting the needed yarn strength.
4) The yarn production machine as claimed in claim 1 further comprising a feed roller, in its front for continuous supply and transportation of yarn with occurrence of breakage of yarn reduced to minimum.
5) The yarn production machine as claimed in claim 1 wherein said gear trains and cam arrangement is adapted to operate said spindles at different speeds for performing necessary actions such as reeling, spinning and twisting at appropriate speeds for achieving the desired yarn parameters viz., twist strength, appearance, linear density, uniformity etc.
6) A system for production of silk yarn, said system comprising a yarn production machine as claimed in claim 1 wherein the said machine is fed with silk filaments obtained from cocoons, said yarn production machine comprising of reeling, spinning and twisting elements, the said machine, being provided with a gear train and cam arrangement for rotating plurality of spindles, the said gear train arrangement being driven by more than one power source including solar means, the said machine for yarn production comprising of feed rollers for continuous yarn supply and the operable speeds of the said yarn production machine capable of being adjusted for achieving desired yarn parameters.
7) A method for production of silk yarn comprising steps of feeding of silk filaments obtained from cocoons to a yarn production machine comprising of reeling, spinning and twisting elements, the said machine, is provided with a gear train and cam arrangement for rotating plurality of spindles, the said gear train arrangement being driven by more than one power source optionally including solar means, the said machine for yarn production comprising of feed rollers for continuous yarn supply and the operable speeds of the said yarn production machine being adjustable for achieving desired yarn parameters.
8) A silk yarn production machine operated by more than one energy source substantially described herein above with the preferred embodiments with enhanced features for achieving desired yarn parameters / qualities.
9) The Silk yarn production machine incorporating the functions of reeling, spinning and twisting, can be utilized even in small area as it requires lesser operating areas.
,TagSPECI:FIELD OF INVENTION

The present invention in general relates to silk industry and for silk yarn manufacturing. Still particularly, the invention relates to the reeling, spinning and twisting of Tasar silk, a unique silk yarn variety of India. More particularly, the invention relates to a machine for reeling, spinning and twisting of tasar silk yarn, aimed at higher productivity and utilizing solar power for its operation. Furthermore, the invention, aims at eliminating conventional energy for operating tasar silk reeling and twisting and reducing human toil and drudgery involved in the work. Further, the invention aims at achieving higher quality of Tasar Silk yarns by improved reeling and spinning using improved mechanized process.

BACKGROUND OF ART

It is very well known that silk fabric industry is very popular in India and due to its popularity over centuries, silk garments from India have not only established huge markets within India but also, has a great market potential worldwide. Generally, silk is obtained from mulberry and non mulberry silkworms which forms the raw material for most of silk & silk materials from India. Mulberry silkworm is known as Bombyx mori L. Non mulberry silkworms are of four types viz. tasar silkworm Antheraea mylitta, muga silkworm Anteraea assama, eri silkworm Philosamia ricini and oak tasar silkworm Antheraea proylyi. Indian tasar is known as Tropical Tasar and its cultivation is done abundantly in the states of Jharkhand, Chhattisgarh, Madhya Pradesh, Bihar, Orissa, Andhra Pradesh, Maharashtra, West Bengal and Uttar Pradesh. Tasar culture has imerged one of the most important livelihood avocation for many tribal communities in tasar producing Indian States. Both domestic varieties i.e., Daba Tri Voltine, and Daba Bi Voltine Tasar Cocoons as well as from natural resources like Rally, Modal etc are available. It can be seen that the silk cocoons, which contain the silk material, needs to be unwounded and also, it can be understood, that the silk filament from a single cocoon is too fine, it requires, integration of filaments from multiple number of cocoons, and joined together, and subjected to twisting action to achieve a thread which is further would to achieve a reel. To achieve this the processes of reeling and spinning and finally twisting are required to be carried on the filaments of the silk cocoons.

It has been clearly established, that major cause for yarn imperfections in the silk spinning industry in India, has been due to the conventional process of ‘thigh reeling’ which is a manual, low productive and highly dependent on skills of the individual, performing the operation and hence it is liable for unevenness of the silk yarn. It must be understood that silk reeling is a process of withdrawing of single filaments from cocoons and combining them together to form silk thread of desired denier. As per the statistics available for the year 2012 – 13, the total production of raw silk from mulberry was 18,715 Metric tonnes, 3,166 MT for Eri Silk, 1,729 for Tasar Silk and 119 metric tonnes for Muga silk varieties. Out of the various silk varieties, the cocoons of Mulberry, Muga & Tasar can be reeled, whereas for Eri silk, it is possible only to perform spinning. Whereas Mulberry cocoons are reeled using Multiend Reeling Machines and Automatic Reeling Machines with reeling speed of 100 metres per minute.Whereas the Tasar silk cocoons are either reeled by the Natwa (thigh) process or by using conventional machines which have very low operational speeds of 30 metres per minute. Also, in case of Natwa (thigh) reeling process, due to the rubbing of filament on thigh, the reeler is prone to be infected by skin diseases as the filaments are impregnated with soda / caustic ash solutions. Also, this process may not get the acceptance from many of the customers of garments made of Tasar silk yarn. It must be understood the imperfections in the yarn, have a cascading effect in the quality of yarn and hence in the final product, i.e., the garment / fabric itself and hence is undesirable.

Further, if one observes the process of reeling and spinning of silk filaments to yarn in our country, is mostly involving manual techniques which are obviously highly labour oriented and also, from the productivity point of view, is extremely low and hence the returns yielded by this manual methods are very less. It creates an imbalance between the available work force in the silk industry as one can observe the higher the output of silk yarn it would be better to cater to the production of silk fabric and the people involved in the various tasks of fabric production, weaving, dyeing etc, can be provided work. Hence, it is absolutely indispensable to have appropriate balance between demand and supply for silk yarn in good quality and uniformity.

Though, there have been approaches towards mechanizing of this process, by different persons as well as Research Institutes like Trivedi Reeling machine, Reeling cum twisting machine, Multiend reeling machine etc, but they have been woefully short of achieving the desired attributes, and the machines which are driven by conventional electric power, are unwieldy and large in size and consume much power and also, lack in productivity and even after being mechanized the reeling, spinning process by such machines would still require manual intervention. Thus, it can be observed that the efforts oriented towards achieving mechanizing the process of reeling and spinning of Tasar silk yarn from the constituent silk fibres so far have failed to address many of the needs and requirements.

1490/DEL/2008 by by EUTSCHE INSTITUTE FUR TEXTIL-UND FASERFORSCHUNG located in STUTTGART discloses a device and thread-guiding ring for a ring spinning machine or a twisting machine and a ring spinning or twisting machine.

WO 2010086882A1 discloses a spinning machine for silk yarn adapted to be operated manually and/or by an electrical motor, includes a plyer, a center thread guide, a moti spring and a feed adjuster. The plyer is used to insert twist in bunch of silk filaments, through the center thread guide and the moti spring, the bunch of silk filaments passes and is twisted by plyer to finally being winded on bobbin, the feed adjuster regulates the difference in rotation between the plyer and the bobbin and thus regulates the twist in the yarn.
However, the action of passing of the thread through a plurality of ring travelers was not known from the prior art documents.

OBJECT OF THE INVENTION
The objects of the present invention are as follows:-
1. To provide a productive and economically viable reeling, spinning and twisting machine for producing quality Tasar silk yarn, from its constituent filaments derived from the cocoons, which is encompassing the features of less manual intervention and occupying optimal space.

2. To provide a reeling and spinning machine for Tassar silk yarn, which gives uniform output of the silk yarn in required deniers without any variations at any point of time during its manufacture.

3. To provide a reeling and spinning machine for production of Tassar Silk yarn using, solar power / energy instead of conventional sources of energy and also, whenever electrical power is available, the Tasar silk yarn reeling, spinning and twisting machine can utilize it.

In addition, another additional object of the invention is to provide a Solar power driven Tasar silk yarn reeling, spinning and twisting machine, which can be used for reeling and spinning of other wild varieties of silk, not only limited to Tasar silk.

SUMMARY OF THE INVENTION
According to the invention, the machine for reeling, spinning and twisting for Tasar silk, encompasses a Chassis box, which is provided with a set of gear trains, and cams for operation of a plurality of spindles. The twisting action of ring travelers around the spindles is utilized for twisting the Tasar silk yarns before they are wound over bobbins.
The rings are mounted upon a ring frame which is incorporated by arrangement of sliders and connecting rods. The Tasar silk yarn obtained from the raw cocoons is fed to this reeling & twisting machine through the feed roller arrangement.
The spinning and twisting machine for Tasar silk yarn can be fed with both normal power as well as solar power sources, thus achieving energy efficiency and capable of being operated at remote places in our country where there is no constant availability of electrical power, thus the machine ensures continuous production of Tasar silk yarn for the benefit of reelers and spinners in their villages.
Additionally , it must be noted that during days of less or non availability of adequate solar power etc, there is a provision for backing up of solar energy, in battery forms so that unhindered production of Tasar silk yarn is ensured.

BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig 1 provides an assembled view of the constituent components of the Tasar Silk reeling spinning and twisting machine unit, which can perform all the three operations in a combined and integrated manner in the unit.
Fig. 2 provides the raising and lowering motion of the ring rail (1) from the lever (3) which is in turn connected to a Cam (4). The Cam is fed with motion through a gear box (5) which is connected to a motor (6) by means of a belt drive (7)
Fig 3 shows the yarn which passes through the eyelet guide of the ring (1), the pulley (2) and then through the feed rollers (3 & 4) respectively. The speed of the feed roller (3) can be adjusted in accordance with the spindle speed for controlling of twist in the yarn ( to the requisite levels) Further upon the yarn passes over the pulley (5) through the eyelet guide and then is wound over the bobbin (8) after inserting of the twist through ring (7) and traveler.
DESCRIPTION OF THE INVENTION
The unit of the Tasar Silk reeling, spinning and twisting machine comprises of a Chassis box, which is encompassing of a set of gear trains, concealed thereupon and cams provided for operating multiple number of spindles. It can be observed that the twisting action of ring travelers around the spindles for imparting the twist required for strengthening of the yarns, before the yarn is rolled on bobbins of silk yarn.
The Tasar Silk, reeling, spinning and twisting machine is capable of being controlled through a control panel. The power source for driving and operation of the machine is through a battery, which in turn can be charged by solar panels.
The Tasar silk yarn is fed to the reeling, spinning and twisting machine unit by means of Lappet wire (19) which is further, passed through a ceramic guide component (23) and which passes down through a Bottom roller (13). Upon completion of this action, the Tasar Silk yarn, passes through a Croissure Pulley (2) and a Lappet hook (3). The Ring travelers, provided are capable of moving rotatably around the rings (5) and they are linked through a ring rail (6). The Tasar silk yarn finally passes through the ring travelers and finally gets wounded on the bobbins.
It can be seen that the speed of operations of various motions required for operating and performing the various actions viz., reeling, spinning, and twisting are being controlled in a co ordinated fashion for controlling the parameters of yarn quality, twist as well as productivity.
The gear train and Cam movements of the Tasar silk yarn reeling, spinning, and twisting machine are enabled in such a way that it is operated with reduced power consumption and can be coupled to an auxiliary power source like battery which can be solar energy fed.
Further, the moving ring rails, for carrying of twisting rings, enhances the quality of the Tasar silk yarn.
Also, the feed roller arrangement provided in front of the Tasar silk yarn production machine, ensures continuous supply of yarn with reduced occurrence of undesired event like yarn breakage.
The operating speeds for performing various actions viz., reeling, spinning, as well as twisting of Tasar silk yarn using the tasar silk yarn production machine can be controlled through the gear train arrangement, for achieving optimal quality of yarn properties.