The improved shuttle looms of shuttle looms are a kind of machine with more complicated, more mechanical parts, large vibration, easy wear and high failure rate, especially its open transmission mechanism is extremely fragile and difficult to repair. The part. The traditional twill fabric open transmission mechanism uses indirect transmission. This transmission has the following disadvantages: (1) high mechanical failure rate, low production efficiency, poor product quality, due to the complicated structure of the indirect transmission, severe vibration in the loom During the process, the gears, the shaft hole and the shaft are easy to wear and loose, forming problems such as excessive clearance and unbalanced movement, which affect the determination of the opening time and the consistency of the opening height, and it is easy to form a poor suspension and no opening. Equipment failures such as clearing, rolling, and shuttles and three-hop defects affect production efficiency and product quality; (2) installation and maintenance are more complicated; 3) high consumption, because of the more gears used for indirect transmission, the spare parts are expensive.
In view of the above reasons, in order to adapt to weaving twill weave, improve the efficiency of the weaving machine and reduce the consumption, through the years of discussion and experiment, the indirect transmission of the twill fabric opening mechanism is changed to direct transmission, which saves the cost of the bridge device and reduces the transmission. The parts of the device (reducing parts cost of 34.3 yuan per car) are easy to install and repair, which greatly reduces the mechanical failure rate and improves production efficiency and product quality. See the schematic diagram of the direct drive mechanism before and after improvement.
The twill fabric opening mechanism has been changed from indirect transmission to direct transmission. We have experienced small trials, pilot tests and promotion. Now we have used direct transmission for the weaving of twill fabrics, a total of 784 vehicles, the effect is very good, and the factory and the majority Unanimous recognition of employees. Through the transformation, the production efficiency of the loom is increased by more than 5%, the three-hop detour point is reduced by more than 50%, and the consumption is more than 30,000 yuan, which has made outstanding contributions to the improvement of the economic benefits of our factory.
Front and rear improvement of the opening drive. Economic performance of the state-of-the-art maintenance of the Wanglanju wind spinning equipment in Zhumadian City, Henan Province. The traditional equipment cycle planning maintenance of textile enterprises has not adapted to the equipment management requirements under the modern enterprise system, the level of automation of textile machinery and automation. The continuous improvement of the degree also provides technical conditions for the implementation of equipment state maintenance. Our factory has 24 sets of FA502 spinning frames. Since the second half of 2000, we have implemented equipment maintenance. The equipment has been running well for more than a year and has achieved certain economic benefits.
The traditional cycle plan maintenance has certain limitations: (1) equipment maintenance is not divided into primary and secondary, all will be organized according to plan; 2) the division of labor is too fine, resulting in a single skill of technical personnel; (3) after the equipment is flattened, it often takes a certain time to run-in In order to play the normal level; (4) the parking time is too long, reducing the equipment operating rate; (5) lack of pertinence, regardless of good or bad all disassembly, resulting in waste of machine materials.
State maintenance is based on the results of inspections and inspections. Preventive maintenance based on the status of the equipment is also planned. However, it focuses on the operating status of the equipment and highlights the pertinence. The key is pre-testing and pre-control. At its core is planned testing, timely and appropriate repairs. The ultimate goal is to reduce the consumption of bad cars and increase the operating rate. When we carry out the state maintenance of the FA502 type spinning frame, we will start from the actual situation of this unit and educate the maintenance personnel to strengthen their sense of responsibility. In the daily inspection, the prevention is mainly used, and the inspection machine is intensified, and the detailed operation records of the operator and the operation mechanic are combined to grasp the operation state of the equipment.
When performing maintenance on the specific machine, refer to the daily operation status, and carry out thorough inspection before maintenance, so that you can be aware of the facts. Parts that should be replaced are replaced, do not need to be replaced or remain in the original state or lubricated. It does not disassemble and install the equipment, which not only reduces the labor and machine materials consumption, but also improves the operation rate. At the same time, the equipment after maintenance is basically free of re-run-in problems. The operators generally reflect that the equipment is very repaired. It will be able to enter a good running state soon. Through the implementation of equipment state maintenance, the following effects have been achieved: a) the equipment operation rate has been increased, the output has been increased, and the parking time has been greatly reduced. The monthly maintenance of 4 spinning frames can reduce the parking time by 6 shifts per press. The current production level of our factory, C18tex yarn output can add 1.t output per month; (2) Reduce the working hours, calculate 4 sets of spinning frames per month, each can save 12 working hours, saving labor 48 per month. The saved man-hours can be invested in other work; (3) reduce the material consumption of the machine, thereby reducing the damage of various bearings and other parts in disassembly and assembly; (4) improving the overall quality of maintenance personnel, Make the preservation technology develop in an all-round way.
In summary, under the existing equipment conditions, from the perspective of improving the equipment management level of the enterprise, the implementation of equipment state maintenance has good economic benefits. In the future work practice, we will continue to explore and further improve and improve this equipment management system.
Anyang City, Henan Province, young textile factory Wang Xiangsheng Li Zhimin to improve the efficiency of the air compressor several measures air compressor air passage resistance, directly affect the amount of gas. In general, the greater the resistance, the smaller the volume. The production environment of the textile industry contains a large amount of dust, bristles and floating objects, which easily block the air filter, the passages inside the machine head and the spacers, which is the main reason for the resistance of the air compressor passage.
The quality of the air drawn in by the compressor is the key to the amount of gas produced. In order to extend the service life of the equipment, reduce the maintenance cost, and function normally, the air entering the compressor must be high-quality clean air after multi-stage filtration. At this time, the stability and economy of the compressor operation have an important impact. Therefore, how to solve the problem of reducing channel resistance and improving gas production has become an issue actively explored by various enterprises, and our company has also made active research and practice in this regard.
After years of exploration and continuous improvement, the three Ingersoll Rand 35m3/h centrifugal air compressors of our company have been put into operation since 1993, and the gas production efficiency is as high as 100%, which has achieved satisfactory results. Mainly from three aspects of maintenance and improvement, it is introduced as follows.
Add air filter stage plus a filter plate made of 120 mesh / 25mm stainless steel mesh to block the hair, dust and floating objects in the air. The air quality entering the compressor filter is relatively increased, thereby reducing the filter load and extending the filter life. In the daily operation, it should be cleaned frequently to keep the mesh open. When cleaning, pay attention to the high-pressure water flow from the inside of the net to the outside of the net to prevent dust from entering the compressor filter.
The air filter is equipped with a large air filter. The air volume is large and the air quality is poor and it is easy to block. The machine performance requirements pressure difference can not exceed 1989Pa. In order to ensure the pressure difference, the air filter must be purged or replaced. Frequent stop driving to the equipment itself 1989Pa waste filter is again dried and purged, and the original machine is equipped with a foundation. Add one more, that is, use waste materials, and double the filter area. This reduces the speed of the air passing through the filter, the pressure difference is significantly reduced, the replacement cycle is extended by a factor of three, and the cost is reduced.
Keep the air in the machine channel clear. Although it has been filtered through the filter and filter, there are still extremely fine dust entering the working channel. After a long time, it is attached to the first and second cooler channels and the spacer, and the channel resistance is added. The gas production is reduced and the heat exchange efficiency is affected, so it should be cleaned regularly according to the actual situation. The cleaning method is as follows: after the first and second-stage cooler separators are removed, depending on the actual situation, the acidic substance aux and the water are mixed into a solution having a pH of 2 to 4, and the water pump is used to pressurize the cooling channel 3h~ After 4h, the alkaline substance sodium hydroxide was gradually added to the solution for neutralization, and the washing was continued until the pH was equal to 7 to stop the application. Then, the cooler was washed in the reverse direction along the channel with high-pressure clear water, and then purged with high-pressure gas. Channels and spacers until clean.
First, the turf inside the compressor head is corroded or oxidized due to contact with the air. The rust is removed by the application tool and purged with high pressure gas.
The cooler can be assembled by fitting it to a pressure test.
Through the above work, not only the operational stability of the compressor is ensured, but also the maintenance cost is greatly reduced. In the past few years, two compressors have been in normal operation, and one compressor has been used to meet the gas needs of 48 280 Toyota looms and 20 190 Tsudak looms. The efficiency of the looms has remained above 95%. More satisfactory results.
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