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9Современные инновации, системы и технологии // Modern Innovations, Systems and Technologies
2023;3(4) eISSN: 2782-2818 https://www.oajmist.com
УДК: 677.02 EDN: EPNYPS
DOI: https://doi.org/10.47813/2782-2818-2023-3-4-0101-0108
Изменение расстояний основных рабочих органов современных чесальных машин и их анализ
О. А. Арипова, Ф. Ф. Казоков, Н. Н. Саттарова
Бухарский инженерно-технологический институт, Бухара, Узбекистан
Аннотация. В статье рассматривается способ повышения производительности чесальной машины, направленный на увеличение скоростных режимов основных очесывающих органов (приемного барабана и главных барабанов) и улучшение качества чесальных поверхностей, а также увеличение площади очеса. Приведены таблицы, характеризующие интервалы, устанавливаемые на чесальной машине. В данной статье рекомендуется устанавливать на ровничный стол правильной машины дополнительную подвижную опору, которая может оказать положительное влияние на качество и физико-механические свойства ровницы.
Ключевые слова: волокна, сорные примеси, пряжа, качество, производительность, вытяжка, вытяжной прибор.
Для цитирования: Арипова, О. А., Казоков, Ф. Ф., & Саттарова, Н. Н. (2023). Изменение расстояний основных рабочих органов современных чесальных машин и их анализ. Современные инновации, системы и технологии - Modern Innovations, Systems and Technologies, 3(4), 0101-0108. https://doi.org/10.47813/2782-2818-2023-3-4-0101-0108
Changes in the distances of the main working parts of modern carding machines and their analysis
O. A. Aripova, F. F. Kazokov, N. N. Sattarova
Bukhara Engineering and Technological Institute, Bukhara, Uzbekistan
Abstract. The article discusses a method for increasing the productivity of a carding machine, aimed at increasing the speed modes of the main carding organs (receiving drum and main drums) and improving the quality of carding surfaces, as well as increasing the carding area. Tables are given that characterize the intervals set on the carding machine. This article recommends installing an additional movable support on the roving table of the levelling machine, which can have a positive impact on the quality and physical and mechanical properties of the roving.
Keywords: linear density, winding, packing, roving, flyer, tape, reel, exhaust device, movable support, roving machine.
© Арипова О. А., Казоков Ф. Ф., Саттарова Н. Н., 2023
0101
For citation: Aripova, O. A., Kazokov, F. F., & Sattarova, N. N. (2023). Changes in the distances of the main working parts of modern carding machines and their analysis. Modern Innovations, Systems and Technologies, 3(4), 0101-0108. https://doi.org/10.47813/2782-2818-2023-3-4-0101-0108
INTRODUCTION
Currently, in the spinning industry there are several problems regarding the spinning of various fibers to produce yarn using the ring spinning method [1]. Although this is considered one of the most difficult methods, spinners still choose the ring method for producing yarn. Because the yarn produced with this method is much higher quality and has many textures and features that are important for weaving. This, in turn, is connected with the quality of the roving that the roving machines produce, since in the ring spinning method, the yarn is directly spun from the roving.
All roving machines carry out processes such as drawing, twisting and winding, that is, the formation of a slightly twisted product from the sliver, roving and the formation of a roving package. The roving machine can process cotton, viscose, natural, chemical fibers and their mixtures with a staple fiber length of up to 63 mm.
The tape is thinned in a three-cylinder two-strap or four-cylinder two-strap drawing device with three seals 3.0 - 15.8 times and is produced in the form of a weak tape. The device is strengthened by direct torsion due to the rotation of the suspended flyer, which, after thinning, is directed into the hole in the upper part of the flyer, put on a rapidly rotating spindle. The batt itself is clamped at one end in the exhaust device, and at the other end in the upper part of the flyer, and for each revolution it receives one twist, where the range of twist is 10 - 100 twists per meter, the result is a roving rounded along the length [2-5]. And here there can be major problems on the roving machine, such as the breakage of the roving or the flyer, the collapse of the flyer on the flyers, the thinning and thickening of the roving in different places, the jumping out and oscillation of the flyer that is inserted into the second row of the flyer on the roving machine. To prevent such problems, science has done a lot of research to this day. Since the smoother the roving, the fewer breaks in the leveling machine itself, the productivity of the machine increases, the subsequent process, that is, the operation of the spinning machine is ensured, and productivity increases [6].
MATERIALS AND METHODS
We recommend installing an additional rotating support on the roving table, since the large distance between the last pair of the drafting device and the second-row guide can cause problems such as special stretching of the roving, jumping out and oscillation of the roving, which also affects the quality of the roving [7]. It is possible with the installation of rotating supports before the bowl hits the guide flyer of the second row to prevent partial stretching, oscillation and breakage, also improving the quality of the roving and optimizing the drawing process, the properties of the roving will change and this can also affect the economic side of the machine. The recommended scientific idea, in turn, does not interfere with the technological process; the additional movable support we recommend receives movement from the output cylinder of the machine's exhaust device and ensures uniform supply of the bowl [8-11].
Since the design of all roving machines is almost the same, this scientific idea is recommended for all machines.
This distance can mainly cause the following disadvantages:
• stretching of the roving;
• vibration due to speed;
• jumping of the roving;
• unevenness of the roving;
• malfunction of the device;
• breakage of the device;
• increase in volatile fibers and fiber loss;
• weakening the tension of the roving.
In conclusion, we can say that we can partially prevent all the shortcomings due to the recommended device, that is, additional rotating support.
Figures 1 and 2 show the structure of the location of the recommended movable support relative to the x and y axes of the coordinate line.
Figure 1. Placement of the recommended movable support along the abscissa axes. The recommended movable support in the research work is described along the ordinate and abscissa axes x and y (see Figure 1).
The Figure 2 shows the trajectory of the bowl's movement through acute and right angles to the x, y axes.
9 k .f
'."¡=90 J 1. UL
ft L ' OS S ' 25 ) h JJ 4 4 5 > S 5 Tr^.
-V J
Figure 2. The trajectory of the bowl's movement through acute and right angles to the x, y
axes.
Notes to the figures:
• yx(+) - surface of the flyer table;
• CA= (150.0) mm - height of the last cylinder of the exhaust device from the flyer table;
• СB = (410.0) mm - the distance between the last cylinder of the exhaust device and the second row led to the surface of the flyer table;
AD= (55.410) mm - distance between the last cylinder of the exhaust device and
the second row of the carrier;
(GK) = G - beam recommended support;
CF= (205.0) - point of fastening the support on the flyer table mm;
CH= (140.0) mm - the distance between the last cylinder of the exhaust device and
the first row led to the surface of the flyer table;
HI (k) = (139.117) mm - height of the carrier of the first row;
cutting j = (B, D) = 55 mm - height of the second row of carrier from the roller
table;
notch i = (F, G) = 102 mm - height recommended additional rotating supports; point G(GK) is recommended additional rotating support; AD (OP) - roving.
RESULTS AND DISCUSSION
One of the important aspects is the optimal selection of parameters that give an objective picture of the material or technological regime.
Figure 3. Kinematic diagram of the leveling machine Zinser Speed 5A without the one
recommended by the device.
ri^dl^riJId'
П--I
\
^linmrilll
Figure 4. Kinematic diagram of the leveling machine Zinser Speed 5A with the
recommended device.
Figures 3 and 4 describe kinematic diagram of the leveling machine Zinser Speed 5A without the one recommended by the device and with the recommended device.
Here WV=22-31 is an additional gear that receives movement from the gear of the exhaust cylinder and transmits circular motion to the recommended device with a diameter (0) of 25/20. In our recommended research work, it consists of a metal rod with a diameter of 20 mm and a plastic mass with a diameter of 25 mm coated on its surface to eliminate length elongation and vibration affecting the length of the rod. and the length of the rod. The main purpose of laying polymer plastic on the surface of the shaft is to prevent electrification of the fiber and maintain the structural structure of the shaft.
Factors are important indicators that influence the object of study, and therefore are reflected in the optimization parameter. Under controlled experimental conditions the experimenter himself influences the objects of research through factors, for which he places the selected factors at certain levels.
When conducting full-factorial experiments, we select the following input factors: Xi -Linear density of the product, X2 - Number of twists in the product, X3 - Temperature in the workshop. Output factor Y - Received one-time productivity.
The values of the selected input factors are presented in the Table 1.
Table1. Levels and intervals of factor variability.
Factor name Coded symbol Actual factor value Range of change
-1 0 +1
Linear density of product Х1 200 300 400 100
Number of twists Х2 30 60 90 30
Workshop temperature Х3 20 24 28 4
CONCLUSION
By installing an additional rotating support on the leveling machine before the roving falls into the guide flyer of the second row coming out of the last pair of the drafting device, it is possible to prevent a number of problems such as stretching, oscillation, jumping out and breakage, as well as improving the quality of the roving and optimizing the drawing process.
REFERENCES
[1] Rashit N., Khudayberdiev M., Abdullaev A., Sharofov O., Aripova O. Improvement of product drafting process in drafting devices of the spinning machines with the application of straps. J. Phys.: Conf. Ser. 2021; 2094: 042079 https://doi.org/10.1088/1742-6596/2094/4/042079
[2] Baranova A.A., Alenitskaya Yu.I. Technology and equipment of textile production. Vitebsk: UO "VGTU"; 2008.
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[6] Kazokov F.F., Sattarova N.N., Umirov Zh., Razhabov I. Change in technological distances of the main working bodies of modern carding machines and their analysis. Modern
Innovations, Systems and Technologies. 2022; 2(2): 0401-0408. https://doi.org/10.47813/2782-2818-2022-2-2-0401 -0408 .
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[9] Behera B.K., Jajpura K and L. Comparative Analysis of Mechanical Behavior of Unconventional Natural Fibers and their Union Fabrics. Curr Trends Fashion Technol Textile Eng. 2019; 5(4): 555669. https://doi.org/10.19080/CTFTTE.2019.05.555669
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[11] Kazokov F.F., Sattarova N.N. The main combing organs of the carding machine. International Journal of Advanced Research in Science, Engineering and Technology. 2019; 6(11): 11658-11664.
ИНФОРМАЦИЯ ОБ АВТОРАХ / INFORMATION ABOUT THE AUTHORS
Farhot Kazokov, PhD, Senior Lecturer of the Department «Technology and Fabric Design» of Bukhara Engineering and Technology Institute, Bukhara, Uzbekistan.
Olima Aripova, Bukhara Engineering and Technology Institute, Bukhara, Uzbekistan.
Nodira Sattarova, Assistant of Department «Technology and Fabric Design» of Bukhara Engineering and Technology Institute, Bukhara, Uzbekistan.
Статья поступила в редакцию 12.09.2023; одобрена после рецензирования 01.10.2023; принята
к публикации 09.10.2023.
The article was submitted 12.09.2023; approved after reviewing 01.10.2023; accepted for publication
09.10.2023.
