Coating pipe network pressure constant auxiliary system

Abstract

The utility model discloses a coating pipe network pressure constant auxiliary system which comprises an air storage tank. The bottom end part of the gas storage tank is communicated with a coating pipe network; the top end part of the air storage tank is communicated with a constant-pressure complementing air compressor capable of inputting compressed air into the air storage tank, and the middle area of the air storage tank is communicated with a release agent mixing pressure feeder capable of inputting coating into the air storage tank; and the volume ratio of the compressed air in the air storage tank is not less than that of the coating in the air storage tank. According to the utility model, the paint pressure in the paint pipe network can be compensated in real time, so that the paint pressure is always kept at a level equivalent to the air pressure of compressed air in the spraying air pipeline, and the spraying quality and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of paint spraying, in particular to an auxiliary system for maintaining constant pressure in a paint pipeline network. Background Art

[0002] The cylinder head is an indispensable part of the engine. Its main function is to enclose the upper part of the cylinder block and jointly form a combustion chamber with the top of the piston and the cylinder wall. During the processing of the cylinder head, a process of spraying paint on the outer surface of the cylinder head is involved, such as spraying a release agent. The existing operation method is as follows: The release agent mixing and pressure-feeding machine first presses the prepared paint mixture into the paint pipeline network through a pneumatic diaphragm pump and then into the sprayer; when the sprayer sprays, it presses the aforementioned paint into the spraying air pipeline connected with compressed air, and finally the compressed air will reach the spraying point of the cylinder head together with the paint. Compared with the compressed air, the flow path of the paint is longer. When the sprayer makes a spraying action, that is, at the moment when the pneumatic diaphragm pump works, the pressure of the paint in the paint pipeline network will instantly drop below 0.45 Mpa, while the air pressure of the compressed air in the spraying air pipeline still remains at 0.55 - 0.6 Mpa (the output pressure of the spraying air compressor). In the closed spraying air pipeline, when the air pressure of the compressed air is greater than the paint pressure, the paint will be wrapped by the compressed air and cannot be discharged, ultimately resulting in the problem of spray interruption (only blowing air without paint), which will seriously affect the production quality and production efficiency. Summary of the Utility Model

[0003] The purpose of the utility model is to overcome the above problems of the prior art, and provide an auxiliary system for maintaining constant pressure in a paint pipeline network, which can compensate the pressure of the paint in the paint pipeline network in real time, so that the paint pressure is maintained at a level equivalent to the air pressure of the compressed air in the spraying air pipeline, and thereby improve the spraying quality and efficiency.

[0004] The purpose of the utility model is mainly achieved through the following technical solutions:

[0005] An auxiliary system for maintaining constant pressure in a paint pipeline network, including an air storage tank;

[0006] The bottom end of the air storage tank is connected to the paint pipeline network;

[0007] The top end of the air storage tank is connected to a constant-pressure makeup air compressor capable of inputting compressed air into the air storage tank, and the middle area of the air storage tank is connected to a release agent mixing and pressure-feeding machine capable of inputting paint into the air storage tank;

[0008] The volume ratio of the compressed air in the air storage tank is not less than the volume ratio of the paint in the air storage tank.

[0009] Further, the volume ratio of the compressed air to the paint in the air storage tank is 1:1 - 2:1.

[0010] Furthermore, a liquid level pipe is connected to the side wall of the air storage tank, and a plurality of liquid level sensors are arranged on the liquid level pipe.

[0011] Furthermore, two of the mold release agent mixing and pressure feeders are connected to the air storage tank.

[0012] Furthermore, the constant pressure make-up air compressor is connected to the air storage tank through a constant pressure make-up pipe.

[0013] Furthermore, a constant pressure make-up switch valve is arranged at the connection between the constant pressure make-up pipe and the air storage tank.

[0014] Furthermore, a paint output switch valve is arranged at the connection between the air storage tank and the paint pipe network.

[0015] The utility model has the following beneficial effects: In the utility model, when the sprayer is started, the pressure of the paint in the paint pipe network will drop instantaneously. At this time, the constant pressure make-up air compressor is started to inject compressed air into the air storage tank. This compressed air will exert pressure on the paint from the top to compensate the paint pressure in the paint pipe network in real time, so that the paint pressure always remains constant. In this way, the paint pressure is always maintained at a level equivalent to the air pressure of the compressed air in the spraying air pipeline, thereby improving the spraying quality and efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present utility model, the drawings required for describing the embodiments of the present utility model will be briefly described below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For those skilled in the art, other drawings can be obtained according to the following drawings without creative efforts.

[0017] Figure 1 is a schematic structural diagram of the paint pipe network pressure constant auxiliary system described in the present utility model;

[0018] Figure 2 is a schematic structural diagram of the paint pipe network pressure constant auxiliary system described in the present utility model;

[0019] Figure 3 is a cross-sectional view of a specific embodiment of the paint pipe network pressure constant auxiliary system described in the present utility model.

[0020] Among them, the component names corresponding to the reference numerals are as follows: 1. Air storage tank, 2. Mold release agent mixing and pressure feeder, 3. Paint pipe network, 4. Liquid level pipe, 5. Liquid level sensor, 6. Constant pressure make-up pipe, 7. Constant pressure make-up switch valve, 8. Paint output switch valve, 9. Paint, 10. Compressed air. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] To enable those skilled in the art to better understand the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the embodiments described below are only a part of the embodiments of the present utility model, rather than all of them. Based on the embodiments recorded in the present utility model, all other embodiments obtained by those skilled in the art without creative efforts are within the scope of protection of the present utility model.

[0022] Embodiment 1

[0023] As Figures 1 to 3 shown, the coating pipe network pressure constant auxiliary system includes an air storage tank 1;

[0024] The bottom end of the air storage tank 1 is communicated with a coating pipe network 3;

[0025] The top end of the air storage tank 1 is communicated with a constant pressure make-up air compressor capable of inputting compressed air into the air storage tank 1, and the middle area of the air storage tank 1 is communicated with a release agent mixing and pressure feeder 2 capable of inputting coating into the air storage tank 1;

[0026] The volume ratio of the compressed air in the air storage tank 1 is not less than the volume ratio of the coating in the air storage tank 1.

[0027] Preferably, the constant pressure make-up air compressor is communicated with the air storage tank 1 through a constant pressure make-up pipe 6. A constant pressure make-up switch valve 7 is provided at the connection of the constant pressure make-up pipe 6 and the air storage tank 1. The constant pressure make-up switch valve 7 is used to control the storage amount of the compressed air entering the air storage tank 1.

[0028] Preferably, a coating output switch valve 8 is provided at the connection of the air storage tank 1 and the coating pipe network 3. The coating output switch valve 8 is used to control the switch of the output end of the air storage tank 1.

[0029] In this embodiment, the volume ratio of the coating stored in the air storage tank 1 is less than the volume ratio of the compressed air. The coating pipe network 3 will convey the coating to the sprayer. When the sprayer is started, the pressure of the coating in the coating pipe network will drop instantly. At this time, start the constant pressure make-up air compressor to inject compressed air into the air storage tank 1. This compressed air will apply pressure to the coating from the top to compensate the coating pressure in the coating pipe network in real time, so that the coating pressure always remains constant. The parameters set for the spraying air compressor are 0.55 - 0.6 Mpa, and the parameters of the constant pressure make-up air compressor can be set to 0.55 - 0.58 Mpa.

[0030] Preferably, the volume ratio of the compressed air to the coating in the air storage tank 1 is 1:1 to 2:1.

[0031] In this embodiment, the air storage tank 1 can be selected with a size of 0.3 cubic meters in capacity, and the storage capacity of the compressed air therein can be maintained at 0.15 - 0.2 cubic meters. This setting of the volume ratio can ensure the power for the compressed air to supplement the paint pressure.

[0032] Preferably, a liquid level pipe 4 is connected to the side wall of the air storage tank 1, and a plurality of liquid level sensors 5 are arranged on the liquid level pipe 4.

[0033] In this embodiment, three liquid level sensors 5 can be provided to respectively monitor the minimum limit height, the maximum limit height, and the optimum limit height of the paint. When the paint is lower than the optimum limit height, the release agent mixing and feeding machine 2 should timely supplement sufficient paint into the air storage tank 1. When the paint is higher than the maximum limit height, corresponding adjustment should be made by reducing the input amount of the release agent mixing and feeding machine 2.

[0034] Preferably, two release agent mixing and feeding machines 2 are connected to the air storage tank 1.

[0035] In this embodiment, the air storage tank 1 can be connected to two release agent mixing and feeding machines 2 through a tee pipe. Both release agent mixing and feeding machines 2 can input paint into the air storage tank 1. In this way, it is more conducive to adjusting the volume ratio of the compressed air and the paint in the air storage tank 1. At the same time, the efficiency can also be improved. Check valves can be arranged at the output ends of both release agent mixing and feeding machines 2. In this way, both release agent mixing and feeding machines 2 can independently input paint into the air storage tank 1.

[0036] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. A coating pipe network pressure constant auxiliary system, characterized in that: Including a gas storage tank (1); The bottom end of the gas storage tank (1) is connected to a coating pipe network (3); The top end of the gas storage tank (1) is connected to a constant-pressure make-up air compressor capable of inputting compressed air into the gas storage tank (1), and the middle area of the gas storage tank (1) is connected to a release agent mixing and pressure-feeding machine (2) capable of inputting coating into the gas storage tank (1); The volume ratio of the compressed air in the gas storage tank (1) is not less than the volume ratio of the coating in the gas storage tank (1).

2. The pressure constant auxiliary system for the coating pipe network according to claim 1, characterized in that: The volume ratio of the compressed air to the coating in the gas storage tank (1) is 1:1 to 2:

1.

3. The paint pipeline network pressure constant auxiliary system according to claim 1, characterized in that: A liquid level pipe (4) is connected to the side wall of the gas storage tank (1), and a number of liquid level sensors (5) are arranged on the liquid level pipe (4).

4. The constant-pressure auxiliary system for a coating pipe network according to claim 1, wherein: Two release agent mixing and pressure-feeding machines (2) are connected to the gas storage tank (1).

5. The constant-pressure auxiliary system for a coating pipe network according to claim 1, characterized in that: The constant-pressure make-up air compressor is connected to the gas storage tank (1) through a constant-pressure make-up pipe (6).

6. The paint pipeline network pressure constant auxiliary system according to claim 5, characterized in that: A constant-pressure make-up switch valve (7) is arranged at the connection of the constant-pressure make-up pipe (6) and the gas storage tank (1).

7. The constant pressure auxiliary system for the coating pipe network according to claim 1, wherein: A coating output switch valve (8) is arranged at the connection of the gas storage tank (1) and the coating pipe network (3).

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