SU1523180A1 - Installation for depositing two-component materials - Google Patents

Abstract

The invention relates to installations for spraying and applying liquids on the surfaces of products and can be used to apply two-component materials to the surfaces. The aim of the invention is to reduce material losses during depressurization of an installation by ensuring that components are automatically stopped when the supply of one of them stops. For this purpose, the installation is equipped with two normally open 40.41 and two normally closed 42.43 pneumatically controlled valves and valves 44.45 of the manual control of the compressed air supply. Normally open pneumatically controlled valves 40, 41 are sequentially installed in the compressed air supply line to the pneumatic actuator 25 of the dispensers of 5.6 components, and normally closed pneumatic control valves 42, 43 are interconnected in series and connected to the compressed air supply line in parallel to the normally open pneumatic control valves . Pressure sensors 30, 31 are located at the inlet of the material components into the mixing chamber. The shut-off valves 32.33 and manual control valves 44.45 are installed in the compressed air supply lines to the control cavities of normally open 40.41 and normally closed 42.43 pneumatic control valves. The pressure sensors 30, 31 are made in the form of ball valves and springs, spring-loaded to them, installed with the possibility of interaction with the pushers of stop valves 32, 33. 1 hp f-ly. 2 Il.

Description

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Filters of materials are filtered through filters 11, 12, and 19, 20. The compressed air is supplied to the pneumatic actuator 25 through the normally open valves - jans 40 and 41, the filter 26, the pressure reducing valve 27, the oil spray 28 and the air diffuser 24.

Dispensers 5 and b of the components of the materials are supplied under pressure up to 30 MPa through heated pressure hoses 21 and 22 into the mixing chamber 7, under pressure of the material, ball valves 34 and 35 open and the components of the material are fed into the spray gun 8, through which the coating is applied

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The invention relates to installations for spraying and applying liquids on the surface of products and can be used for applying two-component materials to the surfaces.

The aim of the invention is to reduce material losses during depressurization of an installation by ensuring that components are automatically stopped when the supply of one of them stops.

FIG. 1 shows an apparatus for applying two-component materials; in fig. 2 - discharge of the mixing chamber.

The installation contains consumable tanks 1 and 2 for components, blowers 3 and 4 and

batchers of 5 and 6 components, mixing 15 surfaces of products. Under pressure of the ball-chamber 7 and the sprayer 8 communicated with it 8. spring-loaded valves 34 and 35

In the component supply lines, the setters 36 and 37 move the heaters 9 and 10, filters 11 and 12, and push the pushers 38 and 39. The last closing valves 13-18, the filters 19 and 20 turn on the stop valves 32 and 33. fine cleaning. A mixing chamber 7 of this includes valves 44 and 45 manually communicated with metering units 5 and 6 of the heating- 20 controls, which open the supply of compressed pressure hoses 21 and 22 of this air to the shut-off valves 32 and 33.

The installation has a compressed air supply line 23 communicated through the air distributor 24 with the pneumatic actuator 25 of the dispensers 5 and 6. In the line 23 of the compressed air supply 25 there is a filter 26, a pressure reducing valve 27 and an oil sprayer 28. The air distributor 24 is equipped with a silencer 29. In the supply lines components at the entrance to the mixing chamber 7, pressure sensors 30 and 31 are installed with shut-off 30 ". Valves 32 and 33 are made in the control cavities of the valves;

ball valves 34 and 35 and podpruzh-with a normally open valve 40

the shtokakh 36 and 37, which are not attached to them, are installed and closed, and the normally closed valve

with the ability to interact with pushers 38 and 39 shut-off valves 32 and 33.

The installation is equipped with two normally open 40 and 41 and two normally closed 42 and 43 pneumatically controlled valves and valves 44 and 45 of the manual control of the compressed air supply. Normally open pneumatically controlled valves 40 and 41 are sequentially installed in line 23 of the compressed air supply.

Normally closed pneumatically controlled

If one of the pressure hoses, e.g. 21, is broken, or the installation is dispersed, a pressure drop occurs in the mixing chamber 7. At the same time, the ball valve 34 is closed and the rod 36 is lowered under the action of a spring. The pusher 38 is displaced and opens the shut-off valve 32. Compressed air through line 47

42 opens. When the valve 40 is closed, the supply of compressed air to 25 pneumatic actuator 25 is stopped and the supply of material components is stopped.

Similarly, the supply of components of materials automatically stops when the pressure of the component in the pressure hose 22 drops.

40

valves 42 and 43 are interconnected in series and connected to the compressed air supply line 23 in parallel with normally open pneumatically controlled valves 40 and 41.

Manual valves 44 and 45 and shut-off valves 32 and 33 are installed.

With short stops in the process of applying the material in switching off the atomizer, it is possible to equalize the material pressure in the pressure hoses 21 and 22 and the mixing chamber 7. This is accompanied by the closing of the ball valves 34 and 35 and the opening of the shut-off valves 32 and 33.

However, this does not stop the pneumatic drive 25, since compressed air

in lines 46 and 47 of the compressed air supply 50 о blunt to him through the open in this

case normally closed valves 42 and 43.

to control cavities of normally open and normally closed pneumatically controlled valves.

The installation works as follows.

Material components are loaded into

case normally closed valves 42 and 43.

Automatic shutdown of the supply of material components in the event of depressurization of the installation allows reducing losses

consumable tanks 1, 2 and are heated by the material's heat- ing and excludes the possibility of being supplied by the switches 9, 10. The blowers 3 and 4 supply the atomizer of one of the components

the components of the materials into the receiving cavities if the supply of another composting device 5 and 6 is stopped. During the passage of the material.

Filters of materials are filtered through filters 11, 12, and 19, 20. The compressed air is supplied to the pneumatic actuator 25 through the normally open valves 40 and 41, the filter 26, the reducing valve 27, the lubricator 28 and the air diffuser 24.

Dispensers 5 and b of the components of the materials are supplied under pressure up to 30 MPa through heated pressure hoses 21 and 22 into the mixing chamber 7, under pressure of the material, ball valves 34 and 35 open and the components of the material are fed into the spray gun 8, through which the coating is applied

surface products. Under pressure of ball valves 34 and 35 spring-loaded

"Is given to the control cavities of the valves -

If one of the pressure hoses, e.g. 21, is broken, or the installation is dispersed, a pressure drop occurs in the mixing chamber 7. At the same time, the ball valve 34 is closed and the rod 36 is lowered under the action of a spring. The pusher 38 is displaced and opens the shut-off valve 32. Compressed air through line 47

the valve is closed normally closed

42 opens. When the valve 40 is closed, the supply of compressed air to the pneumatic actuator 25 is stopped and the supply of the material components is stopped.

Similarly, the supply of components of materials automatically stops when the pressure of the component in the pressure hose 22 drops.

40

With short stops in the process of applying the material in switching off the atomizer, it is possible to equalize the material pressure in the pressure hoses 21 and 22 and the mixing chamber 7. This is accompanied by the closing of the ball valves 34 and 35 and the opening of the shut-off valves 32 and 33.

However, this does not stop the pneumatic drive 25, since compressed air

about stupid to him through open in this

case normally closed valves 42 and 43.

Claims (1)

Invention Formula These are installed in series in the compressed air supply line to the pneumatic actuator of the component dispensers, while normally closed pneumatically controlled valves are connected in series and connected to the compressed air supply line parallel to the normally open air control valves, and the pressure sensors are located at the inlet of the material components to the mixing valve. the camera, and constipation1. An installation for applying two-component materials, containing component tanks, blowers and component dispensers, a mixing chamber connected to them by pressure hoses, a compressed air supply line connected to the pneumatic actuator of the dispensers, pressure sensors installed in the component supply lines with shut-off valves and nozzle valves with manual control and mixing chamber communicated, the guns are installed in the supply lines so that, in order to reduce material losses during depressurization of the installation by ensuring automatic stopping filing of one of them, it is supplied2. Installation under item 1, characterized in that two normally open and two nor-that pressure sensors are made in the form of shamally closed pneumatic control valves and spring-loaded valves valves and valves manual control rods installed with the ability nor the supply of compressed air, while nor-interaction with the pushers of shut-off valves that are open to normal, pneumatically operated valves 20 pans. air into the control cavities of normally open and normally closed pneumatically controlled valves. These are installed in series in the compressed air supply line to the pneumatic actuator of the component dispensers, while normally closed pneumatically controlled valves are connected in series and connected to the compressed air supply line parallel to the normally open air control valves, and the pressure sensors are located at the inlet of the material components to the mixing valve. camera, and constipation., These valves and manual control valves are installed in the compressed air supply lines to the control cavities of normally open and normally closed pneumatically controlled valves. P "five 3J Kompongnt 5