Spraying gun for spraying pipe fittings

Abstract

The utility model belongs to a pipe fitting spraying gun in the technical field of metal pipe fitting machining. Comprising a wind pressure pipeline (1) and a coating pipeline (2), a coating nozzle (3) is arranged on the lower portion of the coating pipeline (2), the wind pressure pipeline (1) is connected with the coating nozzle (3) through a connecting pipeline (4), the wind pressure pipeline (1) is communicated with a wind pressure supply pipeline (5), and the coating pipeline (2) is communicated with a coating supply pipeline. The pipe fitting spraying gun is simple in structure, the number of nozzles of the spraying gun can be reduced, the stability of air pressure is improved, and the air pressure meets the blowing requirement; the spraying efficiency of the spraying gun is improved, the sprayed surface is smooth, and the surface quality of a formed pipe fitting is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of metal pipe processing, and more specifically relates to a pipe spraying gun. Background Art

[0002] In the prior art, when casting ductile iron pipes by hot mold method, the refractory coating must be sprayed on the inner wall of the pipe mold using a spray gun according to given parameter standards so that the refractory coating can be evenly distributed. The commonly used spray gun structure is a double row of eight nozzles, with many nozzles and a small spraying range, resulting in low spraying efficiency; it is greatly affected by wind pressure, and the spraying pressure of each nozzle cannot be consistent; and the surface after spraying is relatively rough, and the surface quality of the formed pipe is poor.

[0003] There is a technology named "a kind of painting equipment" and the publication number is "CN112756122B" in the prior art. The technology relates to a kind of painting equipment, including a transmission device and a hanging device, the hanging device is used to hang the pipe fittings to be sprayed, the transmission device is used to drive the hanging device to move horizontally along a fixed path, the painting equipment also includes a spraying device, the spraying device is installed on one side of the moving path of the hanging device, the spraying device includes a housing, a rotating tube, a spray gun head and a moving assembly, the rotating tube is rotatably connected in the housing, a first motor for driving the rotating tube to rotate is arranged on the housing, one end of the rotating tube is open and penetrates to the outside of the housing, a side wall of the rotating tube is provided with a notch along the length direction, the pipe fitting is located in the rotating tube, the spray gun head is arranged in the housing around the rotating tube, and the moving assembly is used to control the spraying device to move in the direction close to and away from the hanging device. Paint powder will spray the pipe fittings around the pipe fittings, so as to achieve the purpose of improving the uniformity of the paint layer sprayed on the pipe fittings by the painting equipment. However, the technology does not involve the technical problems and technical solutions of the present application. Utility Model Content

[0004] The technical problem to be solved by the utility model is: in view of the deficiencies in the prior art, a pipe spraying gun with a simple structure is provided, which can reduce the number of nozzles of the spray gun and improve the wind pressure stability so that the wind pressure meets the spraying requirements; the spraying efficiency of the spray gun is improved, and the surface after spraying is smooth, thereby improving the surface quality of the formed pipe fittings.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by the utility model is:

[0006] The utility model discloses a pipe spray gun, comprising an air pressure pipeline and a paint pipeline. A paint nozzle is arranged at the lower part of the paint pipeline. The air pressure pipeline is connected to the paint nozzle through a connecting pipeline. The air pressure pipeline is connected to an air pressure supply pipeline, and the paint pipeline is connected to a paint supply pipeline.

[0007] A plurality of paint nozzles are arranged at intervals at the lower part of the paint pipeline, one end of each connecting pipeline is connected to the air pressure pipeline, and the other end of each connecting pipeline is connected to the paint nozzle.

[0008] The wind pressure duct comprises a first wind pressure duct pipe fitting and a second wind pressure duct pipe fitting, the first wind pressure duct pipe fitting and the second wind pressure duct pipe fitting are connected through a wind pressure intermediate duct, and the wind pressure supply duct is connected to the wind pressure intermediate duct.

[0009] The paint pipeline comprises a first paint pipeline pipe fitting and a second paint pipeline pipe fitting, the first paint pipeline pipe fitting and the second paint pipeline pipe fitting are connected through a paint intermediate pipeline, and the paint supply pipeline is connected to the paint intermediate pipeline.

[0010] One end of each connecting pipeline is connected to the first pipe fitting of the air pressure pipeline, and the other end of each connecting pipeline is connected to the paint nozzle.

[0011] A side valve is respectively arranged on each connecting pipeline of the pipe fitting spraying gun.

[0012] A lower valve is arranged between the lower part of the paint pipeline and the paint nozzle, and one end of each connecting pipeline connected to the paint nozzle is connected to the lower valve.

[0013] The pipe spraying gun also includes a positioning plate, and the air pressure pipeline and the paint pipeline are respectively connected to the positioning plate.

[0014] An air volume regulating valve is arranged on the air pressure supply pipeline.

[0015] The side valve, the lower valve and the air volume regulating valve are all electronic valves, and the side valve, the lower valve and the air volume regulating valve are respectively connected to the control components.

[0016] The technical solution of the utility model is adopted, and the working principle and beneficial effects are as follows:

[0017] The pipe fitting spray gun described in the utility model has a wind pressure pipeline and a paint pipeline when the structure is set. The wind pressure pipeline is used to supply air volume, and the paint pipeline is used to supply paint. The wind pressure pipeline is connected to the paint nozzle through a connecting pipeline. The wind pressure acts on the paint, so that the paint is sprayed out at a pressure that meets the requirements and covers the surface of the pipe fitting. When the pipe fitting spray gun is working, under the action of wind pressure, the paint is subjected to pressure and sprayed out from the paint nozzle to cover the surface of the pipe fitting. The paint to be sprayed is sprayed on the surface of the pipe fitting in an atomized state to form a smooth coating and improve the quality. In this way, by reducing the number of nozzles and increasing the spraying pressure, the purpose of achieving the desired atomization effect when spraying the paint is achieved; and by controlling the air pressure and the amount of paint respectively through valves, it can meet the production requirements of pipe fittings of various specifications and improve the versatility of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following is a brief description of the contents and symbols in the drawings of this specification:

[0019] Figure 1 This is a schematic diagram of the structure of the pipe spraying gun described in the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the pipe spraying gun described in the utility model;

[0021] The markings in the attached drawings are respectively: 1. air pressure duct; 2. paint duct; 3. paint nozzle; 4. connecting pipeline; 5. air pressure supply duct; 6. air volume regulating valve; 7. first pipe fitting of air pressure duct; 8. second pipe fitting of air pressure duct; 9. middle air pressure duct; 10. first pipe fitting of paint duct; 11. second pipe fitting of paint duct; 12. middle paint duct; 13. side valve; 14. lower valve; 15. positioning plate. DETAILED DESCRIPTION

[0022] The following is a detailed description of the embodiments of the present invention, such as the shapes, structures, positions and connection relationships of the components involved, the functions and working principles of the components, etc., by referring to the accompanying drawings:

[0023] As attached Figure 1 , Attachment Figure 2 As shown, the utility model is a pipe spray gun, including an air pressure pipe 1 and a paint pipe 2. A paint nozzle 3 is arranged at the lower part of the paint pipe 2. The air pressure pipe 1 is connected to the paint nozzle 3 through a connecting pipe 4. The air pressure pipe 1 is connected to the air pressure supply pipe 5, and the paint pipe 2 is connected to the paint supply pipe. The above structure proposes an improved technical solution to the deficiencies in the prior art. When the structure is set, the air pressure pipe 1 and the paint pipe 2 are respectively used. The air pressure pipe 1 is used to supply air volume and the paint pipe 2 is used to supply paint. The air pressure pipe 1 is connected to the paint nozzle 3 through a connecting pipe 4. The wind pressure acts on the paint, so that the paint is sprayed out at a pressure that meets the requirements and covers the surface of the pipe. When the pipe spray gun is working, under the action of wind pressure, the paint is subjected to pressure, sprayed out from the paint nozzle, and covers the surface of the pipe. Specifically, the paint to be sprayed is sprayed on the surface of the pipe in an atomized state to form a smooth coating and improve the quality. In this way, by reducing the number of nozzles and increasing the spraying pressure, the purpose of achieving the desired atomization effect during paint spraying is achieved; and by controlling the air pressure and the amount of paint respectively through valves, the production requirements of pipes of various specifications can be met, and the versatility of the device is improved. The pipe spraying gun described in the utility model has a simple structure, can reduce the number of nozzles of the spray gun, improve the wind pressure stability, so that the wind pressure meets the spraying requirements; improve the spraying efficiency of the spray gun, and the surface after spraying is smooth, thereby improving the surface quality of the formed pipe.

[0024] A plurality of paint nozzles 3 are arranged at intervals at the lower part of the paint pipeline 2, and one end of each connecting pipeline 4 is connected to the air pressure pipeline 1, and the other end of each connecting pipeline 4 is connected to the paint nozzle 3. In the above structure, one end of each connecting pipeline 4 is connected to the air pressure pipeline 1, and the other end of each connecting pipeline 4 is connected to the paint nozzle 3. In this way, the wind pressure is supplied to the front part of the spray nozzle through the connecting pipeline, thereby acting on the paint, increasing the pressure on the paint, and actually increasing the pressure during spraying.

[0025] The air pressure duct 1 includes a first air pressure duct pipe 7 and a second air pressure duct pipe 8, which are connected through an air pressure intermediate pipe 9, and the air pressure supply pipe 5 is connected to the air pressure intermediate pipe 9. The above structure improves the structure of the air pressure duct. The air pressure duct 1 includes a first air pressure duct pipe 7 and a second air pressure duct pipe 8 arranged in parallel, which are connected through an air pressure intermediate pipe 9. In this way, the air pressure duct is equivalent to a cavity. When the air volume is supplied, it does not directly act on the nozzle, but enters the air pressure duct first. The air volume in the air pressure duct has a specific pressure, so that the air volume achieves pressure stability and better meets the air pressure control during spraying. In this way, the spraying effect is improved and the surface quality of the pipe after spraying is effectively improved.

[0026] The paint pipeline 2 includes a first paint pipeline pipe 10 and a second paint pipeline pipe 11, the first paint pipeline pipe 10 and the second paint pipeline pipe 11 are connected through a paint intermediate pipe 12, and the paint supply pipe is connected to the paint intermediate pipe 12. The above structure improves the structure of the paint pipeline. The paint pipeline 2 includes a first paint pipeline pipe 10 and a second paint pipeline pipe 11 arranged in parallel, the first paint pipeline pipe 10 and the second paint pipeline pipe 11 are connected through a paint intermediate pipe 13, so that the paint pipeline 2 is equivalent to a cavity. When the paint is supplied, it does not directly act on the paint nozzle, but first enters the paint pipeline, so that the paint supply realizes pressure stability, which better meets the pressure control of the paint during spraying. In this way, the spraying effect of the spray gun is improved, and the surface quality of the pipe after spraying is effectively improved.

[0027] One end of each connecting pipeline 4 is connected to the first pipe fitting 7 of the air pressure pipeline 1, and the other end of each connecting pipeline 4 is connected to the paint nozzle 3. A lower valve 14 is arranged between the lower part of the paint pipeline 2 and the paint nozzle 3, and one end of each connecting pipeline 4 connected to the paint nozzle 3 is connected to the lower valve 14. In the above structure, the lower valve is used to control the on-off and adjust the opening size to meet the spraying requirements of different pipes. One end of each connecting pipeline 4 is connected to the first pipe fitting 7 of the air pressure pipeline 1, and the other end of each connecting pipeline 4 is connected to the paint nozzle 3. One end of each connecting pipeline 4 connected to the paint nozzle 3 is connected to the lower valve 14. The air volume is supplied to the lower valve 14 and acts on the paint nozzle, and the lower valve 14 realizes the air volume adjustment control.

[0028] Each connecting pipeline 4 of the pipe fitting spray gun is provided with a side valve 13. In the above structure, the side valve 13 is used for connecting and disconnecting the connecting pipeline and adjusting the air volume.

[0029] The pipe spray gun further comprises a positioning plate 15, and the air pressure pipe 1 and the paint pipe 2 are respectively connected to the positioning plate 15. In the above structure, the positioning plate 15 is used to connect the air pressure pipe 1 and the paint pipe 2 to achieve a fixed arrangement of the positions of the air pressure pipe 1 and the paint pipe 2.

[0030] The air pressure supply pipe 5 is provided with an air volume regulating valve 6. In the above structure, the air volume regulating valve 6 is used to adjust the air volume entering the air pressure supply pipe 5 to meet the demand.

[0031] The side valve 13, the lower valve 14, and the air volume regulating valve 6 are all electronic valves, and the side valve 13, the lower valve 14, and the air volume regulating valve 6 are respectively connected to the control component. In the above structure, the side valve 13, the lower valve 14, and the air volume regulating valve 6 are respectively automatically controlled by the control component to meet the automatic adjustment of the on-off and opening size of different parts.

[0032] The pipe fitting spray gun described in the utility model comprises an air pressure pipe 1 and a paint pipe 2. The air pressure pipe 1 is used to supply air volume, and the paint pipe 2 is used to supply paint. The air pressure pipe 1 is connected to the paint nozzle 3 via a connecting pipe 4. The air pressure acts on the paint, so that the paint is sprayed out at a pressure that meets the requirements and covers the surface of the pipe fitting. When the pipe fitting spray gun is working, under the action of the wind pressure, the paint is subjected to pressure, sprayed out from the paint nozzle, and covers the surface of the pipe fitting. Specifically, the paint to be sprayed is sprayed on the surface of the pipe fitting in an atomized state to form a smooth coating and improve the quality. By reducing the number of nozzles and increasing the spraying pressure, the atomization effect that meets the requirements is achieved when the paint is sprayed; and by controlling the air pressure and the amount of paint respectively through valves, it can meet the production requirements of pipe fittings of various specifications and improve the versatility of the device.

[0033] The utility model is described above by way of example in conjunction with the accompanying drawings. It is obvious that the specific implementation of the utility model is not limited to the above-mentioned method. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.

Claims

1. A pipe spraying gun, characterized in that: The invention comprises an air pressure pipe (1) and a paint pipe (2). A paint nozzle (3) is arranged at the lower part of the paint pipe (2). The air pressure pipe (1) is connected to the paint nozzle (3) via a connecting pipe (4). The air pressure pipe (1) is connected to an air pressure supply pipe (5), and the paint pipe (2) is connected to a paint supply pipe.

2. The pipe spraying gun according to claim 1, characterized in that: A plurality of paint nozzles (3) are arranged at intervals at the lower part of the paint pipeline (2); one end of each connecting pipeline (4) is connected to the air pressure pipeline (1), and the other end of each connecting pipeline (4) is connected to the paint nozzle (3).

3. The pipe spraying gun according to claim 1 or 2, characterized in that: The air pressure duct (1) comprises a first air pressure duct pipe fitting (7) and a second air pressure duct pipe fitting (8); the first air pressure duct pipe fitting (7) and the second air pressure duct pipe fitting (8) are connected via an air pressure intermediate duct (9); and the air pressure supply duct (5) is connected to the air pressure intermediate duct (9).

4. The pipe spraying gun according to claim 3, characterized in that: The paint pipeline (2) comprises a first paint pipeline pipe fitting (10) and a second paint pipeline pipe fitting (11); the first paint pipeline pipe fitting (10) and the second paint pipeline pipe fitting (11) are connected via a paint intermediate pipeline (12); and the paint supply pipeline is connected to the paint intermediate pipeline (12).

5. The pipe spraying gun according to claim 3, characterized in that: One end of each connecting pipeline (4) is connected to the first air pressure pipeline member (7) of the air pressure pipeline (1), and the other end of each connecting pipeline (4) is connected to the paint nozzle (3).

6. The pipe spraying gun according to claim 2, characterized in that: A side valve (13) is respectively arranged on each connecting pipeline (4) of the pipe spraying gun.

7. The pipe spraying gun according to claim 6, characterized in that: A lower valve (14) is arranged between the lower part of the paint pipeline (2) and the paint nozzle (3), and one end of each connecting pipeline (4) connected to the paint nozzle (3) is connected to the lower valve (14).

8. The pipe spraying gun according to claim 1 or 2, characterized in that: The pipe spraying gun further comprises a positioning plate (15), and the air pressure pipeline (1) and the paint pipeline (2) are respectively connected to the positioning plate (15).

9. The pipe spraying gun according to claim 7, characterized in that: An air volume regulating valve (6) is provided on the air pressure supply pipeline (5).

10. The pipe spraying gun according to claim 9, characterized in that: The side valve (13), the lower valve (14), and the air volume regulating valve (6) are all electronic valves, and the side valve (13), the lower valve (14), and the air volume regulating valve (6) are respectively connected to the control components.

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