Title of Invention | A DENIER DETECTION DEVICE FOR USE IN A SILK REELING MACHINE |
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Abstract | This invention relates to a denier detection device to be used in a silk reeling machine comprisingg a denier mounting set provided with a denier detector,a simultaneous denier adjustment member is provided with said denier detector. |
Full Text | FIELD OF INVENTION This invention relates to a denier detection device to used in a silk reeling machine to produce uniform denier of raw silk thread. BACKGROUND OF INVENTION In the present system of reeling, a reeler maintains the required number of cocoons for the production of particular denier purely on the basis of its skill. Thus, production of uniform denier silk depends largely on the skill of the reeler. The main disadvantage of the present system is that, as there is variation in the filament denier within the cocoon as also between cocoons, the skill of the reeler has limitations in terms of producing uniform denier of international grade. The skill of the reeler is limited and has tendency to feed cocoons whether required or not which leads always t coarser denier and fails to produce a targeted denier and gradable quality of raw silk. OBJECTS OF THE INVENTION Therefore, the main object of the present invention is to provide a simple effective denier detection device which provides the reeler to monitor the denier of the raw silk being reeled and take quick corrective measures. Another object of the present invention is to provide a denier detection device whiich reduces the stress and thereby less fatigue on the part of the reeler to intently watch the number of cocoons being reeled, Still another object of the present invention is to provide a denier detection device which improves the uniformity characterstics of raw silk. A further object of the present invention is to provide a denier detection device which is inexpensive and can be fitted into an existing reeling machine, both cottage basin and multiend reeling machine. STATEMENT OF INVENTION According to this invention there is provided a denier detection device for use in a silk reeling machine comprising a denier mounting set provided with a denier detector, a simultaneous denier adjustment member is provided with said denier detector. DESCRIPTION OF INVENTION WITH REFERENCE TO DRAWINGS Further objects and advantages of this invention will be more apparent from the ensuing description when read in conjunction with the accompanying drawings wherein: Fig. 1 shows a thread passage diagram of a multiend silk reeling machine with denier detector of the present invention Fig. 2 shows the denier detector mounting set Fig. 3 shows an exploded view of the denier detector and its parts Fig. 4 shows simultaneous denier adjustment apparatus. In accordance with the present invention, a denier detector devjfiie^an be easily fitted on to a reeling machine. Such arrangements"%m present layout of the reeling (multiend) machine with denier detecting device is showed in Fig. 1. The cooked (boiled) coccons (2) are placed in the reeling basin (1) and the multiple filaments are gathered to make thread are passed through the Jetteboute (3) and button (4) and on the croissure pulley and croissure (5) is introduced in the filaments thread. The thread then passes through a denier detector (8), tension pulley (7), thread guide (10) and finally wound on reel (11). Denier detector (8) is placed in a metal insert (13) (Fig- 2) fixed inside a denier detector mounting bracket (16), in which balancing lever (12) and infrared sensor (17) are also placed (Fig. 2). Back metal pin (22) of Fig. 3 of the denier detector (8) rests on balancing lever (12). One end of the balance weight chain (14) is connected to balance lever (12) and other end of the chain is connected to simultaneous denier adjustment apparatus (Fig. 4). Denier detector mounting set consist of denier detector mounting bracket (16), denier detector (8), balancing lever (12) and infrared sensor (17) is fixed in the reeling machine. A denier indicating lamp (9) is fixed below the thread guide. Infrared sensor (17) and indicating lamp (9) ar& connected to a power source. The denier detector (8) operates on friction principle. The raw silk thread passes through sensing (friction) plates (24, 26) of denier detector (8) causes frictional force that positions the denier indicating plate (20). When the denier of the raw silk being reeled is equal to the set denier, the frictional resistance caused due to its contact with the sensing plates (24, 26) would hold the denier indicating plate (20) upright as the sensing plates (24, 26) and denier indicating plate (20) are fixed together- However, if the denier becomes finer the denier indicating plate (20) tilts downward due to the variation in the frictional resistance. In this position the front metal pin (21) attached to the denier indicating plate (20) comes in the way of infrared beam emitted from the sensor (17) and cuts off the beam. This in turn glows the indicator lamp (9) which draws the attention of the reeler to cast the cocoons. This casting of the fresh cocoons filament increases raw silk denier. When the corrected raw silk denier matches the set denier, the fictional resistance moves the denier indicating plate (20) to upright position there by turning off the indicating lamp (9). Denier detector (Fig. 3) consists of two parallel denier sensing plates (24, 26) of ground glass with a thickness maintaining spacers (25) in between, which has thickness corresponding to the target denier of raw silk. A denier indicating plate (crank) (20) with a definite length and weight is attached such that balancing of unit is performed for a particular denier of yarn. Brass balancing plate (19) is used to balance the denier detector. The movement of the denier indicating plate (20) of the detector in downward and upward direction will vary with the variation in denier of raw silk. This movement of the denier indicating plate (20) as per the denier of the raw silk has been utilised to give light signal to the reeler with the help of infrared sensor (17) and indicating lamp (9). Bolt (18) washers (23, 27, 28) and nut (29) are the parts of the detector used to fix together the brass balancing plate (19), denier indicating plate (20), sensing plates (24, 26), thickness maintaining films (25) in between sensing plates, property and balancing of the detector unit is performed for a particular denier of the yarn. Denier detecting unit (8) works on the friction principle- But friction between raw silk and the denier detector are affected by cocoon characterstics (like distribution of cocoon filament denier, denier of cocoon filament etc.), cocoon cooking conditions, reeling speed, temperature of reeling water, ambient temperature and humidity etc. and hence affecting the targeted average denier of raw silk even though same denier detector is used. In such a situation by using simultaneous denier adjustment apparatus (Fig. 4), adjustment of the friction between detector and raw is made by adjusting the balance weight chain length (14) attached to the balancing lever (12) in order to meet the targeted average denier. Simultaneous denier adjustment apparatus (Fig. 4) consists of a central shaft (30) which runs throughout the length of the machine. On this shaft, one worm wheel (31) is mounted behind each reeling end of the reeling machine. On worm wheels (31), denier detector balancing weight chain (14) is mounted and other end of the chain is connected to balancing lever (12) placed in the denier detector mounting bracket (16, Fig. 2). To the left hand side of the reeling machine, on the central shaft (30) denier regulating dial (32) is mounted. Adjustment of the balance weight chain is made by turning the balancing weight chain adjusting handle (33) on denier regulating dial so that all the denier detectors on one side of the reeling machine will be adjusted simultaneously. The test results of the raw silk reeled with and without denier detecting device are given in table—1 and 2. It can be seen from the table that, the size deviation, maximum deviation and evenness characteristics of raw silk reeled with the denier detecting device are of superior grade than the raw silk reeled without this new technology. 1. A denier detection device to be used in a silk reeling machine comprising a denier mounting set provided with a denier detector, a simultaneous denier adjustment member is provided with said denier detector. 2. A denier detection device as claimed in claim 1 wherein said detector comprises a denier indicatingF plate with a front pin, a back pin, sensing plates for sensing the denier and causing an activation of the denier indicating plate. 3. A denier detection device as claimed in claim 1 wherein said detector has spacers provided between said sensing plates. 4. A denier detection device as claimed in claim 1 wherein said detector comprises a balancing plate. 5. A denier detection device as claimed in claim 1 wherein the denier mounting set comprises a mounting bracket with an insert within which said detector is disposed, an infrared sensor for providing a beam in the direction of the pin of said denier indicating plates. 6. A denier detection device as claimed in claim 1 wherein the mounting bracket is placed on one end of a balancing lever, the opposite end of said lever being held to one end of a balance weight chain. A denier detection device as claimed in claims 1 and 6 wherein the opposite end of the balance weight chain is held to a simultaneous denier adjustment member. A denier detection device as claimed in claim 1 wherein the simultaneous denier adjustment device comprises a shaft having worm wheels mounted thereon and held to said opposite end of the balance weight chain, the other end of said chain connected to the balancing lever. A denier detection device for use in a silk reeling machine substantially as herein described and illustrated with the help of accompanying drawings. |
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1052-mas-1999 abstract duplicate.pdf
1052-mas-1999 claims duplicate.pdf
1052-mas-1999 correspondence-others.pdf
1052-mas-1999 correspondence-po.pdf
1052-mas-1999 description (complete) duplicate.pdf
1052-mas-1999 description (complete).pdf
1052-mas-1999 drawings duplicate.pdf
Patent Number | 201844 | |||||||||
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Indian Patent Application Number | 1052/MAS/1999 | |||||||||
PG Journal Number | 08/2007 | |||||||||
Publication Date | 23-Feb-2007 | |||||||||
Grant Date | 17-Aug-2006 | |||||||||
Date of Filing | 01-Nov-1999 | |||||||||
Name of Patentee | M/S. CENTRAL SILK TECHNOLOGICAL RESEARCH INSTITUTE | |||||||||
Applicant Address | CENTRAL SILK BOARD,MINISTRY OF TEXTILES, GOVERNMENT OF INDIA,B.T.M.LAYOUT,MADIVALA, BANGALORE-560 068 | |||||||||
Inventors:
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PCT International Classification Number | D01B 007/04 | |||||||||
PCT International Application Number | N/A | |||||||||
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PCT Conventions:
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