Double-component material spray gun and spraying equipment comprising spray gun

Abstract

The utility model discloses a bi-component material spray gun and spraying equipment comprising the spray gun, the spray gun comprises a spray gun main body and a handle, a first spray pipeline and a second spray pipeline which are isolated from each other are arranged in the spray gun main body, and opening and closing of the first spray pipeline and the second spray pipeline are controlled through a control switch. The rear ends of the first injection pipeline and the second injection pipeline are feed ports, and the front ends of the first injection pipeline and the second injection pipeline are discharge ports; and a first gas source joint and a second gas source joint are respectively arranged on the first injection pipeline and the second injection pipeline. The first diaphragm pump and the second diaphragm pump are respectively connected with feed ports of the first spraying pipeline and the second spraying pipeline through respective material pipes, and the first air source connector and the second air source connector are respectively connected with an air compressor through air pipes to form spraying equipment. Two-component materials are independently pressurized through the positive pressure air source, the atomization efficiency of the materials is further improved in the atomization process, and the atomization device is simple and compact in structure, suitable for construction in various occasions and more convenient to carry.

Description

Technical Field

[0001] The utility model relates to spraying equipment, and more specifically, to a two-component material spray gun and spraying equipment comprising the spray gun. Background Art

[0002] At present, the construction methods of liquid anti-corrosion and waterproof materials such as paints and inks are divided into roller coating, scraper coating and spraying. Roller coating and scraper coating are suitable for materials with high viscosity, or solvent-based paints that are difficult to clean, or other materials that are difficult to apply by mechanical spraying. Their construction efficiency is low and the uniformity of thickness is difficult to guarantee. Spraying is applicable to materials with moderate and low viscosity, as well as solvent-based materials and other water-based materials that can be cleaned. The effect of material spraying film formation is related to many factors, such as the pressure of the spraying equipment, the spraying distance, the size of the nozzle, etc. Among them, the atomization effect when the material is sprayed out of the nozzle is directly related to the film formation effect. The finer the atomized particles, the smoother and more uniform the surface of the film layer; the larger the atomized particles, the more pinholes and uneven surfaces will appear on the surface of the film layer, and the density and uniformity of the film layer will also be affected.

[0003] For high-pressure spraying equipment, there are high-pressure airless spraying, air spraying and air-assisted spraying. Among them, high-pressure airless spraying equipment does not require a gas source, but its spraying effect, that is, the atomization effect, is proportional to the pressure of the spraying equipment. This type of equipment is generally less versatile, and it is more difficult to find equipment that matches the coating. Air spraying has higher requirements for air sources. For some quick-setting two-component waterproof materials on the market, due to their quick-setting characteristics, such as mixing before atomization, quick-setting two-component waterproof materials are prone to produce particles, resulting in poor spraying effects and easy clogging of the spray gun. Utility Model Content

[0004] The utility model overcomes the shortcomings of the prior art and provides an implementation scheme of a two-component material spray gun and a spraying device including the spray gun, in the hope of solving the problem that the existing spraying equipment has a poor spraying effect when spraying two-component waterproof materials and the two-component waterproof materials easily cause the spray gun to be blocked.

[0005] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] A two-component material spray gun comprises a spray gun body and a handle at the rear lower part thereof, wherein the spray gun body is provided with a first spray pipe and a second spray pipe which are separated from each other, and the opening and closing of the first spray pipe and the second spray pipe are controlled by a control switch, wherein the rear end of the first spray pipe and the second spray pipe is a feed port and the front end is a discharge port, and a nozzle is also installed on the discharge port; and a first air source connector and a second air source connector are respectively provided between the control switch and the discharge port on the first spray pipe and the second spray pipe.

[0007] Optional: The control switch includes a switch handle and a switch control valve, the upper end of the switch handle is rotatably connected to the spray gun body; the switch control valve includes a pin and a spring, the spring is sleeved on the pin, the front end of the pin and the spring limit sleeve are sleeved in the spray gun body, the front end of the pin has a tapered end, and the rod body of the pin also has a limit block, the limit block fits with the front end surface of the spring, and the tail end of the pin is limitedly connected to the switch handle; the first injection pipe and the second injection pipe are arranged in a Z-shaped special shape in the spray gun body, the first injection pipe and the second injection pipe have control openings, and the tapered ends are adapted to the control openings on the first injection pipe and the second injection pipe; there are two switch control valves, corresponding to the first injection pipe and the second injection pipe respectively.

[0008] Optionally: a one-way valve is provided on the first gas source connector and the second gas source connector in the spray gun body.

[0009] Optionally: a one-way valve is also provided between the first gas source connector, the second gas source connector and the control opening on the first injection pipeline and the second injection pipeline.

[0010] Optional: The handle is designed to imitate the curve of the palm.

[0011] Optional: Nozzle is one of Model 6515, 6520 or 6530.

[0012] Optional: including a first diaphragm pump, a second diaphragm pump, and an air compressor, the first diaphragm pump and the second diaphragm pump are respectively connected to the feed ports of the first injection pipeline and the second injection pipeline through their own material pipes, and the first air source connector and the second air source connector are respectively connected to the air compressor through air pipes.

[0013] Optional: The material pipe is a φ8 high-pressure spray pipe.

[0014] Optional: The first diaphragm pump and the second diaphragm pump are selected from DN10, DN15 or DN20.

[0015] Compared with the prior art, the utility model has at least the following beneficial effects: the two-component materials are separately pressurized by a positive pressure gas source, so that the atomization efficiency of the materials is further improved during the atomization process; and the utility model has a simple and compact structure, is suitable for construction in various occasions, and is more convenient to carry. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 This is a cross-sectional view of the spray gun of the utility model in a closed state;

[0018] Figure 3 This is a cross-sectional view of the spray gun of the utility model in an opened state;

[0019] Figure 4 It is a schematic diagram of the cross section of the spray gun of the utility model;

[0020] Figure 5 This is a rear view schematic diagram of the spray gun of the utility model;

[0021] The serial numbers in the figure are as follows: 1. spray gun; 2. first diaphragm pump; 3. second diaphragm pump; 4. first injection pipeline; 5. second injection pipeline; 6. material pipe; 7. feed port; 8. discharge port; 9. nozzle; 10. first air source connector; 11. second air source connector; 12. spray gun body; 13. handle; 14. switch grip; 15. ejector pin; 16. spring; 17. tapered end; 18. limit block; 19. control opening; 20. one-way valve. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0023] like Figure 1 , Figure 4As shown: a two-component material spray gun and a spraying device including the spray gun, including a spray gun 1, a first diaphragm pump 2, a second diaphragm pump 3, and an air compressor. The spray gun 1 is provided with a first injection pipeline 4 and a second injection pipeline 5 which are isolated from each other. The opening and closing of the first injection pipeline 4 and the second injection pipeline 5 are controlled by a control switch. The first diaphragm pump 2 and the second diaphragm pump 3 are respectively connected to the feed ports 7 of the first injection pipeline 4 and the second injection pipeline 5 through their respective material pipes 6. The discharge ports 8 of the first injection pipeline 4 and the second injection pipeline 5 are also installed with nozzles 9. The first diaphragm pump 2 and the second diaphragm pump 3 pump materials of corresponding components to the first injection pipeline 4 and the second injection pipeline 5, and atomization is achieved through the nozzle 9, so that mixing of the two-component materials is achieved during the atomization process. The first and second air source connectors 10 and 11 are respectively provided between the control switch and the discharge port 8 on the first and second injection pipes 4 and 5. The first and second air source connectors 10 and 11 are respectively connected to a positive pressure air source, which is provided by an air compressor. During the spraying process of the spray gun 1, the positive pressure air source pressurizes the materials in the first and second injection pipes 4 and 5, thereby increasing the spraying pressure of the nozzle 9, further increasing the atomization efficiency of the materials, and further increasing the mixing efficiency between the materials. Since the spray gun 1 is assisted in the spraying process by the positive pressure air source, an air compressor with a smaller rated power can be selected, preferably a gas tank of 100L-200L, which is convenient for transfer and transportation.

[0024] Because the spray gun 1 uses a positive pressure air source to improve the atomization efficiency, the diaphragm pump can be selected with a smaller power, such as the common DN10, DN15 or DN20, which is more convenient during the transfer and handling process. Since the diameter of the discharge port of DN10, DN15 or DN20 is not uniform with that of the material pipe 6, a reducer is provided on the discharge port of the diaphragm pump to facilitate connection with the material pipeline. Because a smaller power diaphragm pump is used, the material pipe 6 can be selected from a conventional high-pressure pipe to avoid bulkiness and high cost. The material pipe can be selected from φ8, φ10, φ12, and a φ8 material pipe is preferably used.

[0025] like Figure 2 , Figure 3 , Figure 5As shown: the spray gun 1 has a spray gun body 12, and a handle 13 at the lower rear part. The handle 13 is designed to imitate the curve of the palm, so that the palm and the handle 13 can fit better, avoiding being too stiff when gripping during spraying. The control switch includes a switch grip 14 and a switch control valve. The upper end of the switch grip 14 is rotatably connected to the spray gun body 12; the switch control valve includes an ejector pin 15 and a spring 16. The spring 16 is sleeved on the ejector pin 15. The front end of the ejector pin 15 and the spring 16 are limitedly sleeved in the spray gun body 12. The front end of the ejector pin 15 has a tapered end 17. The rod of the ejector pin 15 also has a limit block 18. The limit block 18 fits with the front end surface of the spring 16. The tail end of the ejector pin 15 is limitedly connected to the switch grip 14. The first The injection pipe 4 and the second injection pipe 5 are arranged in a Z-shaped special shape in the spray gun body 12. The first injection pipe 4 and the second injection pipe 5 have a control opening 19, and the tapered end 17 is adapted to the control opening 19 on the first injection pipe 4 and the second injection pipe 5; there are two switch control valves, which correspond to the first injection pipe 4 and the second injection pipe 5 respectively, and the control openings 19 of the first injection pipe 4 and the second injection pipe 5 are closed and opened and closed by the tapered end 17 of the corresponding switch control valve. A one-way valve 20 is also arranged on the first gas source connector 10 and the second gas source connector 11 in the spray gun body 12 to prevent the material from flowing back into the air compressor through the air pipe; a one-way valve 20 is also arranged between the first gas source connector 10 and the second gas source connector 11 and the control opening 19 on the first injection pipe 4 and the second injection pipe 5 to prevent the positive pressure gas source from entering the diaphragm pump in reverse.

[0026] When in use, the handle 13 is held and the switch handle 14 is pulled backward. The switch handle 14 simultaneously drives the two ejector pins 15 to move backward. The ejector pins 15 drive the tapered end heads 17 to move backward and away from the control opening 19. The first spray pipe 4 and the second spray pipe 5 are connected and spraying can be carried out. When the ejector pins 15 move, the limit block 18 compresses the spring 16. After the spraying is completed, the switch handle 14 is released. The reverse force of the spring 16 ejects the ejector pin 15 through the limit block 18. The corresponding tapered end heads 17 block the first spray pipe 4 and the second spray pipe 5.

[0027] The nozzles 9 on the first spray pipe 4 and the second spray pipe 5 can be selected as 6515, 6520 or 6530 models, which can further improve the spraying efficiency.

[0028] Implementation method:

[0029] S1: During construction, turn on the air compressor and run it for 10 to 15 minutes until the air compressor's air tank is full of spare air. The air compressor's air tank has a space of 100 to 200L, which is enough for air-assisted spraying.

[0030] S2: Turn on the air switch of the diaphragm pump and input air into the diaphragm pump. The diaphragm pump starts to work, and the material is sucked from the barrel into the pump chamber of the diaphragm pump through the feed port, and then compressed and pressed out through the discharge port, through the material pipe 6 until it reaches the spray gun 1.

[0031] S3: Pull the switch handle 14 of the spray gun 1 backward to connect the first spray pipe 4, the second spray pipe 5 with the nozzle 9, and the material enters the corresponding first spray pipe 4, the second spray pipe 5, to the first air source connector 10, the second air source connector 11, the positive pressure air source increases the pressure of the material, and the material is sprayed out from the nozzle 9. After being sprayed out, the material collides and mixes in the air.

[0032] S4: After the construction is completed, connect clean water to the feed port of the diaphragm pump and clean the equipment according to the steps of paint construction until the liquid sprayed through the nozzle is completely clear. Finally, turn off the air source and stop construction and cleaning.

[0033] Although the utility model is described herein with reference to the illustrative embodiments of the utility model, it should be understood that those skilled in the art can design many other modifications and implementations, which will fall within the scope and spirit of the principles disclosed in the present application. More specifically, within the scope disclosed in the present application, multiple variations and improvements can be made to the components and / or layout of the subject combination layout. In addition to the variations and improvements made to the components and / or layout, other uses will also be obvious to those skilled in the art.

Claims

1. A two-component material spray gun, characterized in that: The spray gun (1) comprises a spray gun body (12) and a handle (13) at the rear lower part thereof. The spray gun body (12) has a first spray pipe (4) and a second spray pipe (5) which are separated from each other. The opening and closing of the first spray pipe (4) and the second spray pipe (5) are controlled by a control switch. The rear ends of the first spray pipe (4) and the second spray pipe (5) are a feed port (7) and the front ends are a discharge port (8). A nozzle (9) is also installed on the discharge port (8). A first air source connector (10) and a second air source connector (11) are respectively provided between the control switch and the discharge port (8) on the first spray pipe (4) and the second spray pipe (5).

2. The two-component material spray gun according to claim 1, characterized in that: The control switch comprises a switch handle (14) and a switch control valve, wherein the upper end of the switch handle (14) is rotatably connected to the spray gun body (12); the switch control valve comprises an ejector pin (15) and a spring (16), wherein the spring (16) is sleeved on the ejector pin (15), the front end of the ejector pin (15) and the spring (16) are sleeved in the spray gun body (12), the front end of the ejector pin (15) has a conical end (17), the rod body of the ejector pin (15) also has a limit block (18), and the limit block (18) and the spring (16) are sleeved. The front end surface of the spray gun (12) is fitted, and the tail end of the ejector pin (15) is limitedly connected to the switch handle (14); the first spray pipe (4) and the second spray pipe (5) are arranged in a Z-shaped special shape in the spray gun body (12); the first spray pipe (4) and the second spray pipe (5) have control openings (19); the conical end (17) is adapted to the control openings (19) on the first spray pipe (4) and the second spray pipe (5); there are two switch control valves, which correspond to the first spray pipe (4) and the second spray pipe (5) respectively.

3. The two-component material spray gun according to claim 1, characterized in that: One-way valves (20) are provided on the first gas source connector (10) and the second gas source connector (11) in the spray gun body (12).

4. The two-component material spray gun according to claim 1, characterized in that: A one-way valve (20) is also provided between the first gas source connector (10), the second gas source connector (11) and the control opening (19) on the first injection pipeline (4) and the second injection pipeline (5).

5. The two-component material spray gun according to claim 1, characterized in that: The handle (13) is designed to imitate the curve of a palm.

6. The two-component material spray gun according to claim 1, characterized in that: The nozzle (9) is one of the 6515, 6520 or 6530 models.

7. A spraying device comprising the spray gun according to claim 1, characterized in that: The invention comprises a first diaphragm pump (2), a second diaphragm pump (3), and an air compressor. The first diaphragm pump (2) and the second diaphragm pump (3) are respectively connected to the feed ports (7) of the first injection pipeline (4) and the second injection pipeline (5) through their respective material pipes (6), and the first air source connector (10) and the second air source connector (11) are respectively connected to the air compressor through air pipes.

8. The spraying equipment according to claim 7, characterized in that: The material pipe (6) is a φ8 spray pipe.

9. The spraying equipment according to claim 7, characterized in that: The first diaphragm pump (2) and the second diaphragm pump (3) are selected from one of DN10, DN15 or DN20.

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