外文翻译--高压无气喷涂设备

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1、High-pressure airless spray equipmentAutomation can be achieved to improve the efficiency and construction quality is more important to reduce the labor intensity of workers to operate, to improve the working environment, reduce pollution and ensure the operation of the physical and mental health wo

2、rkers. To this end the design of automatic spray machine.By site conditions, the robot should try to reduce the turning radius, so that zero turning radius. In this issue, drawing on the following two forms of steering.1pneumatic spray equipment and the selectedOccasions in the air spraying, paint a

3、tomization of power is compressed air, it is directly involved in spraying, if the poor cleanliness of compressed air, oil, excessive moisture content directly affects the quality of film, will have pinholes, shrinkage defects, such as coating Therefore, this program without the use of high-pressure

4、 air spray bodies, their equipment, including high-pressure pumps, accumulators, filters, and other high-pressure hose and spray gun. Schematic diagram of the structure shown in Figure 1.Figure 1 Schematic diagram of airless spray institutions（1） high-pressure pumpAirless spray equipment is the use

5、of compressed air for power, drive through the high-pressure pump piston for reciprocating movement. The upper part of pump for the air cylinder with a compressed air for the body to turn up and down into the compressed air cylinder, piston, the lower motor driven high-pressure part of the upper and

6、 lower campaign to inhalation of paint and coatings from a certain pressure. Pneumatic spraying machine marked with the general pressure ratio, the ratio is generally (30 65): 1, that is, when to enter the pump cylinder of compressed air pressure of 1 atmosphere, coating the pressure reached atmosph

7、eric pressure 30 to 65 (theoretical value ).（2） AccumulatorAccumulator paint mainly from the role of hydraulic stability. A result of reciprocating pump plunger up and down two dead in the speed of zero point, so easy to produce the pressure fluctuations. Additional accumulators can reduce the paint

8、 in the spray when the pressure fluctuations and improve the quality of spraying. Accumulator relatively simple structure, the upper and lower two head, paint from the bottom of the entry in the entrance there is a ball check valve.（3）Filter Because the nozzle hole is very small, will plug a little

9、dirty. Therefore, the coating of filter is particularly important. Airless spraying equipment has two filters, one mounted on a coating of the disk-shaped intake filter to remove the paint is dirt impurities; second filter installed in the Accumulator with the high-pressure hose between its role is

10、to filter remaining in the cylinder and piston accumulators of paints. Because they left paint longer residual time, it will play Paper agglomeration, the formation of the debris blocking the nozzle. Practice has proved that if the paint spray gun into the re-installed Office, a small tube-like filt

11、ers, to ensure that the nozzle can not be blocked. Molybdenum wire filters require regular cleaning,Spray to ensure good results.（4） high-pressure hoseAccumulator and spray with high pressure hose connected between. The requirements of high-pressure hoses are: (1) should be selected with the paint w

12、ork of a considerable source of pressure-resistant high-pressure hose, or else will be unsafe; (2) because the coating contains toluene, xylene and other solvents, it is to choose oil, solvent-resistant hoses strong in order to ensure a certain degree of its useful life; (3) Light, soft, easy to car

13、ry and operate.（5） Spray GunAirless spray gun from the gun body, paint nozzles, filters (network), thimble trigger parts and gaskets, etc. to connect. Airless spray gun air spray gun with different channel only paint, and there is no compressed air channel. Coatings have to suffer as a result of hig

14、h-pressure channel, it is therefore not required to have excellent gas gun of the pressure seal to prevent leakage of high-pressure paint. At the same time, the gun body to be lightweight and sensitive trigger headstock, and high-pressure hose connection to the rotating flexible, to facilitate the o

15、peration.图2 喷射角与距离This issue is to improve the traditional industry of artificial spray operations, the design of an automatic spray device, the device by controlling the robot and spray system. Which control the use of rectangular coordinates robot designed by controlling the spray gun body and the

16、 mobile chassis of rectangular coordinates in the Cartesian coordinates of its trajectory in order to achieve the effect of the work setting. Designed to control the structure of the robots body, including the Legislative frame rails, body spray, and try for the mobile chassis and steering system of

17、 the driver designed for the overall control system block diagram, and gives control of the working methods of automatic robot trajectory planning .At the same time, select the appropriate spray equipment to provide a complete body shell Flameproof automatic painting machine design. The automatic sp

18、ray painting machine with good quality and the advantages of stable performance. Automation can be achieved not only to reduce the labor intensity of workers to operate, to improve the working environment at the same time to replace the manual spraying by mechanical spraying, the spraying operation

19、to eliminate the human factor in the impact on product quality, efficiency and construction quality and have some practical value . In order to enhance its cost-effective and should continue to be improved and optimized, making it more stable and reliable performance, and ultimately of their product

20、s.高压无气喷涂设备在空气喷涂场合，涂料雾化的动力是压缩空气，它直接参与喷涂，如果压缩空气的清洁度差，含油、含水超标，则直接影响油膜的质量，会产生针孔、缩孔等涂膜弊病，故本方案采用高压无气喷漆机构，其设备包括高压泵、蓄压器、过滤器、高压软管以及喷枪等。其结构示意图如图16 所示。图16 无气喷漆机构示意图6.1 高压泵 无气喷涂设备是利用压缩空气作动力，通过高压泵驱动活塞作往复运动。泵的上部为空气缸，内有压缩空气换向机构，使气缸上下交替进入压缩空气，活塞上、下运动带动高压部分上、下运动，使涂料吸入并排出一定压力的涂料。气动型喷涂机一般标有压力比，比值一般为(30 65)1，即当进入泵气缸内的压

21、缩空气压力为1个大气压，涂料压力就达到30 65个大气压（理论值）。 6.2 蓄压器 蓄压器主要是起涂料液压稳定作用。因柱塞往复泵在上下两个死点时速度等于零，所以易产生压力波动。增设了蓄压器，可减少涂料在喷涂时的压力波动，提高喷涂质量。蓄压器结构比较简单，上、下有两个封头，涂料从底部进入，在进口处有一滚珠单向阀。 6.3 过滤器 因为喷嘴的孔很小，稍有不洁就会堵塞。因此，涂料的过滤尤为重要。无气喷涂设备有两个过滤器,一是装在涂料吸入口的盘形过滤器，目的是除去涂料中的杂质污物；第二个过滤器装在蓄压器与高压软管之间，其作用是滤清残存在柱塞缸及蓄压器内的漆料。因为这些剩漆残存时间稍长，就会起皮结块，

22、形成堵塞喷嘴的杂物。实践证明，若在喷枪的进漆处再装一个小型的管状过滤器，就可以确保喷嘴不被堵塞。过滤器的钼丝须经常清洗，以确保良好的喷漆效果。6.4 高压软管蓄压器和喷枪之间用高压软管联接。对高压软管的要求是：(1)应选择与涂料源相当的工作压力的耐高压软管，否则会不安全；(2)因为涂料中含有甲苯、二甲苯等溶剂，故要选择耐油、耐强溶剂的软管，以保证其有一定的使用寿命；(3)轻便，柔软，便于携带和操作。 6.5 喷枪 无气喷枪由枪体、涂料喷嘴、过滤器(网)、顶针扳机和密封垫连接部件等构成。无气喷枪与空气喷枪不同，它只有涂料通道，而没有压缩空气通道。由于涂料通道要承受高压，故无气喷枪需具有优异的耐压密封性，以防高压涂料泄漏。同时，枪体要轻巧，扳机启闭灵敏，与高压软管连接处其转动要灵活、操作要方便。图2 喷射角与距离5