用于一種外殼體的自動噴漆機(jī)設(shè)計(jì)
用于一種外殼體的自動噴漆機(jī)設(shè)計(jì),用于,一種,外殼,自動,噴漆,設(shè)計(jì)
High-pressure airless spray equipment
Automation 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 workers. 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 selected
Occasions in the air spraying, paint atomization 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 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 pump
Airless spray equipment is the use 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 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 atmospheric pressure 30 to 65 (theoretical value ).
（2） Accumulator
Accumulator 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 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 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 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 filters, to ensure that the nozzle can not be blocked. Molybdenum wire filters require regular cleaning,
Spray to ensure good results.
（4） high-pressure hose
Accumulator and spray with high pressure hose connected between. The requirements of high-pressure hoses are: (1) should be selected with the paint work 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 carry and operate.
（5） Spray Gun
Airless 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 high-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 operation.
圖2 噴射角與距離
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 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 robot's body, including the Legislative frame rails, body spray, and try for the mobile chassis and steering system of 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 spray 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 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 products.
高壓無氣噴涂設(shè)備
在空氣噴涂場合，涂料霧化的動力是壓縮空氣，它直接參與噴涂，如果壓縮空氣的清潔度差，含油、含水超標(biāo)，則直接影響油膜的質(zhì)量，會產(chǎn)生針孔、縮孔等涂膜弊病，故本方案采用高壓無氣噴漆機(jī)構(gòu)，其設(shè)備包括高壓泵、蓄壓器、過濾器、高壓軟管以及噴槍等。其結(jié)構(gòu)示意圖如圖16 所示。
圖16 無氣噴漆機(jī)構(gòu)示意圖
6.1 高壓泵
無氣噴涂設(shè)備是利用壓縮空氣作動力，通過高壓泵驅(qū)動活塞作往復(fù)運(yùn)動。泵的上部為空氣缸，內(nèi)有壓縮空氣換向機(jī)構(gòu)，使氣缸上下交替進(jìn)入壓縮空氣，活塞上、下運(yùn)動帶動高壓部分上、下運(yùn)動，使涂料吸入并排出一定壓力的涂料。氣動型噴涂機(jī)一般標(biāo)有壓力比，比值一般為(30 ~ 65)∶1，即當(dāng)進(jìn)入泵氣缸內(nèi)的壓縮空氣壓力為1個大氣壓，涂料壓力就達(dá)到30 ~ 65個大氣壓（理論值）。
6.2 蓄壓器
蓄壓器主要是起涂料液壓穩(wěn)定作用。因柱塞往復(fù)泵在上下兩個死點(diǎn)時速度等于零，所以易產(chǎn)生壓力波動。增設(shè)了蓄壓器，可減少涂料在噴涂時的壓力波動，提高噴涂質(zhì)量。蓄壓器結(jié)構(gòu)比較簡單，上、下有兩個封頭，涂料從底部進(jìn)入，在進(jìn)口處有一滾珠單向閥。
6.3 過濾器
因?yàn)閲娮斓目缀苄?，稍有不潔就會堵塞。因此，涂料的過濾尤為重要。無氣噴涂設(shè)備有兩個過濾器,一是裝在涂料吸入口的盤形過濾器，目的是除去涂料中的雜質(zhì)污物；第二個過濾器裝在蓄壓器與高壓軟管之間，其作用是濾清殘存在柱塞缸及蓄壓器內(nèi)的漆料。因?yàn)檫@些剩漆殘存時間稍長，就會起皮結(jié)塊，形成堵塞噴嘴的雜物。實(shí)踐證明，若在噴槍的進(jìn)漆處再裝一個小型的管狀過濾器，就可以確保噴嘴不被堵塞。過濾器的鉬絲須經(jīng)常清洗，以確保良好的噴漆效果。
6.4 高壓軟管
蓄壓器和噴槍之間用高壓軟管聯(lián)接。對高壓軟管的要求是：(1)應(yīng)選擇與涂料源相當(dāng)?shù)墓ぷ鲏毫Φ哪透邏很浌?，否則會不安全；(2)因?yàn)橥苛现泻屑妆?、二甲苯等溶劑，故要選擇耐油、耐強(qiáng)溶劑的軟管，以保證其有一定的使用壽命；(3)輕便，柔軟，便于攜帶和操作。
6.5 噴槍
無氣噴槍由槍體、涂料噴嘴、過濾器(網(wǎng))、頂針扳機(jī)和密封墊連接部件等構(gòu)成。無氣噴槍與空氣噴槍不同，它只有涂料通道，而沒有壓縮空氣通道。由于涂料通道要承受高壓，故無氣噴槍需具有優(yōu)異的耐壓密封性，以防高壓涂料泄漏。同時，槍體要輕巧，扳機(jī)啟閉靈敏，與高壓軟管連接處其轉(zhuǎn)動要靈活、操作要方便。
圖2 噴射角與距離
5
收藏