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UDK 004.02:004.5:004.9
Xakimova N.N. academic staff
Bukhara Engineering Technological Institute
Uzbekistan, Bukhara city
USE OF SEWING CUTTING MACHINES
Annotation: High quality cut is one of the main factors. determining the competitiveness of garment industry products. An important place in solving this problem belongs to the preparatory cutting production of garment enterprises, in particular, the processes of cutting materials, which largely determine the quality of manufactured garments, their labor intensity and material consumption.
Key words: cutting, tool, versatility of cutting, effective work
INTRODUCTION
Cutting textile material by sawing, for example, stationary cutting band machines is the most common at sewing enterprises (about 75-804 manufactures) due to the simplicity of the cutting tool, the ability to cut a large number of canvases at the same time and, most importantly, the versatility of cutting.
Therefore, for effective work, three main conditions must be met. The first is high-quality, reliable equipment. The second is highly qualified sewing specialists. And, finally, the last condition is a well-developed "technological" chain of the entire sewing process.
Among the most actively developing classes of sewing equipment, the following are distinguished: automated and computerized machines; automated lines for the production of clothing; automated cutting devices.
Correctly selected cutting equipment will help to solve problems related to the quality of cutting, reducing material losses, as well as time.
Draw frames are easy-to-use and high-performance equipment that provides high accuracy of cutting from different types of textile materials (cotton fabrics, knitwear, artificial fabrics, insulation, etc.) laid in multi-layer up to 200 mm thick, and for some insulation materials up to 300 mm. The maximum and minimum thickness of the cut layer depends on the type of material.
MATERIALS AND METHODS
In stationary cutting machines, the executive tool is a zero in the form of an endless (closed) steel strip with its sharpening along one edge. The belt knife is pulled over the belt pulleys of the machine. Depending on the number of pulleys, machines are divided into two, three and four-pulley. At present, enterprises use stationary double-sheave machine GL5 (Fig. 1), three-sheave machine RL4 (Fig. 2.), four-sheave machines RL6, RL630, RL10001 (Fig. 3).
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Fig -1 Fig-2 Fig-3
Modern stationary cutting machines are equipped with special devices designed for microswitches, many of which provide the following functions:
-regulation of the tension of the tape of the knife during cutting;
-catching the blade in case of breakage, which prevents workers from getting injuries on their hands;
- sharpening of the knife during the cutting process, for which the grinder is switched on and off with the appropriate pedal;
regulation of the speed of movement of the knife, which is required when cutting
DISCUSSIONS
In modern stationary cutting equipment, reliable operation and high quality of cutting are ensured, without vibration. Additional equipment operations: vacuuming system (suction of debris and chain mail gloves (for operator safety).
Disadvantages of stationary draw frames:
1) manual movement of packs of parts on the machine table;
2) deflection of the blade on turns. First drive to fatigue workers.
Band knives are widely used in the sewing industry, very convenient equipment for cutting fabrics. CONCLUSION
The advantages of such cutting equipment include the convenience of using high productivity, a very even and precise edge. The ability to cut out details of complex configurations. Such knives can be seen 4 both in private sewing enterprises and in huge industries, since they are widespread.
Thus, modern cutting equipment will increase the productivity of sewing -production, thereby minimizing manual labor.
Reference:
1. Моськнна Е. JI. а"Оптимизация параметров раскроя синтетических тканей на стационарной раскройной ленточной машине" Автор. дисс. канд. наук, М, 2005, - 211.
2.Ежова О.В. Прогнозирование инновационного содержания образования специалистов швейной отрасли.
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