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What is the working principle of the automatic spraying machine?

Views:5     Author:Site Editor     Publish Time: 2020-08-31      Origin:Site

The main working part of the fully automatic cement spraying machine is a double-acting pneumatic hydraulic booster pump, and the reversing mechanism is a special form of pilot fully air-controlled air distribution reversing device. After entering the compressed air, when the piston moves to the upper or lower end of the cylinder, the upper pilot valve or the lower pilot valve is actuated, and the air flow is controlled to instantly push the air distribution reversing device to reverse, so that the piston of the air motor makes stable and continuous reciprocating motion . Because the piston is rigidly connected to the plunger in the paint plunger pump, and the area of the piston is larger than that of the plunger. This pressurizes the sucked paint. The pressurized paint is transported to the airless spray gun through the high-pressure hose, and the hydraulic pressure is released at the airless nozzle, and sprayed onto the surface of the object to be coated after instantaneous atomization to form a coating layer.

Cement spraying machine

fengmiantu-320-320

Note:

Booster pump, as the name suggests, is a pump used for boosting. Its main uses include water heater boosting, low water pressure in high-rise buildings, saunas, bathing, etc., pressure insufficiency of upper water pressure in apartments, automatic solar pressure, Pressurization of reverse osmosis water purifier, etc. When the machine is working, the booster pump is filled with liquid, and then the centrifugal pump is started. The impeller rotates rapidly. The blades of the impeller drive the liquid to rotate. When the liquid rotates, it flows to the outer edge of the impeller by inertia, and the impeller sucks in the liquid from the suction chamber. In this process, the liquid in the impeller flows around the blades. During the circumfluence movement, the liquid acts on the blades. In turn, the blades act on the liquid with a force equal to the lift and in the opposite direction. This force does work on the liquid. Make the liquid get energy and flow out of the impeller, at this time the kinetic energy and pressure energy of the liquid increase.

The pilot valve is an auxiliary valve used to manipulate the control mechanism of other valves or components. Its characteristics are as follows:

1) It forms a pilot control liquid bridge with a fixed liquid resistance, and controls the main valve or secondary valve or variable lever according to the input signal;

2) The flow rate of the first-stage pilot valve is generally only about 1 liter/min, and the maximum is 3 liters/min. The flow rate of the secondary pilot valve should be determined according to actual needs.

3) The input signal is relatively small;

4) It can accept a variety of input methods, such as manual, electric, hydraulic, pneumatic, mechanical cam, electric ratio, etc.;

5) In the case of variable pump control, a variety of pilot valves form a modular structure, making it easy to choose between multiple functions;

6) The pilot valve itself is often a small size control valve, mostly a pressure control valve.


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