Mixing spray gun in high-pressure air-free same-pressure bi-component spraying equipment

By designing an internal mixing spray gun for a high-pressure, airless, two-component spraying equipment, the problems of complex and wasteful premixing of coatings were solved, resulting in improved spraying efficiency and efficient material utilization, thus ensuring the economy and environmental friendliness of the coating process.

CN224142529UActive Publication Date: 2026-04-21JIANGSU ANTEKE NEW MATERIALS RES INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU ANTEKE NEW MATERIALS RES INST CO LTD
Filing Date
2024-11-26
Publication Date
2026-04-21

AI Technical Summary

Technical Problem

Existing spraying technologies involve complex and wasteful premixing of coatings, resulting in low efficiency and increased costs.

Method used

Design a high-pressure airless two-component spraying device with an internal mixing spray gun. Two gun tubes guide two types of paint to a three-way block for internal mixing, and then spray them out through the nozzle in a high-pressure airless manner, eliminating the need for external pre-mixing steps and achieving instantaneous mixing of paint.

Benefits of technology

It improves spraying efficiency, avoids paint waste, achieves efficient use of materials and cost savings, and ensures the economy and environmental friendliness of the coating process.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of spray guns, and discloses an internal mixing spray gun of high-pressure air-free same-pressure bi-component spraying equipment, which comprises a spray gun, gun barrels are fixedly connected to two sides of one side end face of the spray gun, a three-way block is fixedly connected to one side end face of each gun barrel, and a spray pipe is fixedly connected to the middle of one side end face of each three-way block. According to the spray gun, when the spray gun is used, two different coatings are respectively guided into the three-way block to be internally mixed through the two arranged gun barrels, and are uniformly sprayed out through the nozzle in a high-pressure airless manner, so that the time and complex steps required by external premixing of the coatings in the traditional spraying process are omitted, and the spraying efficiency is improved; according to the spraying device, the spraying operation efficiency is greatly improved, and as the paint is instantly mixed in the spraying process, paint waste caused by excessive premixing or unused paint is effectively avoided, so that efficient utilization of materials and cost saving are realized, and the economical efficiency and the environmental protection property of the whole coating process are ensured.
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Description

Technical Field

[0001] This utility model relates to the field of spray gun technology, and in particular to an internal mixing spray gun for a high-pressure airless two-component spraying device. Background Technology

[0002] High-pressure airless spraying technology is an advanced surface coating method that uses a high-pressure plunger pump to pressurize the coating to 60-300 kg / cm². 2 High pressure is applied and sprayed through an extremely fine nozzle to form a uniform, fan-shaped mist coating. This technology features a uniform, particle-free finish, rapid drying, and clean, pollution-free application, making it ideal for high-viscosity paint applications and spraying projects requiring precise boundary conditions.

[0003] In existing spraying technologies, most spray guns spray out pre-mixed paint from the outside. However, this method is less efficient due to the need for additional equipment and time, and the difficulty in accurately predicting the amount used often leads to over-mixing or paint waste due to unused paint.

[0004] Therefore, those skilled in the art have provided a high-pressure airless two-component spraying device with an internal mixing spray gun to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing a high-pressure airless two-component spraying device with an internal mixing spray gun. During use, the spray gun guides two different paints to a three-way block via two separate nozzles for internal mixing, and then sprays them uniformly through the nozzle in a high-pressure, airless manner. This design not only eliminates the time and complex steps required for external pre-mixing of paints in traditional spraying, greatly improving the efficiency of spraying operations, but also effectively avoids paint waste caused by excessive pre-mixing or incomplete use because the paints are mixed instantaneously during spraying. This achieves efficient material utilization and cost savings, ensuring the economic and environmental benefits of the entire coating process.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-pressure airless two-component spraying equipment with an internal mixing spray gun includes a spray gun, with gun barrels fixedly connected to both sides of one end face of the spray gun, a T-shaped block fixedly connected to one end face of the two gun barrels, a spray pipe fixedly connected to the middle of one end face of the T-shaped block, and a nozzle fixedly connected to one end of the spray pipe.

[0008] Through the above technical solution, when the spray gun is in use, two different paints are guided to the three-way block through two gun barrels for internal mixing, and then uniformly sprayed out through the nozzle in a high-pressure, airless manner. This design not only eliminates the time and complicated steps required for external premixing of paint in traditional spraying, greatly improving the efficiency of spraying operations, but also effectively avoids paint waste caused by excessive premixing or incomplete use because the paint is mixed instantaneously during the spraying process. This achieves efficient use of materials and cost savings, ensuring the economy and environmental protection of the entire coating process.

[0009] Furthermore, a paint inlet pipe is fixedly connected to one side of the lower end of each of the two gun barrels;

[0010] By using the above technical solution, a paint inlet pipe is fixedly connected to one side of the lower end of the gun barrel, ensuring that the paint flows into the gun barrel. This makes the paint supply more uniform and continuous, thus ensuring that the paint supply will not be interrupted during the spraying process, which helps to improve the efficiency and stability of the spraying operation.

[0011] Furthermore, the spray gun has connecting rods slidably connected to both sides of one end of its interior, and support rods are fixedly connected to the outer side of each of the two connecting rods. One end of each of the two support rods is rotatably connected to the spray gun.

[0012] Through the above technical solution, the connecting rod and the support rod can move the rubber plug inside the gun barrel, thereby controlling the spraying of the coating.

[0013] Furthermore, one end of each of the two connecting rods extends into the interior of the gun barrel and is fixedly connected with a rubber plug;

[0014] Through the above technical solution, the rubber stopper can precisely control the inflow and outflow of paint by opening or closing the paint inlet pipe.

[0015] This utility model has the following beneficial effects:

[0016] 1. This utility model proposes a high-pressure airless two-component spraying equipment with an internal mixing spray gun. During use, the spray gun guides two different paints to a three-way block through two gun tubes for internal mixing, and then sprays them out uniformly through the nozzle in a high-pressure airless manner. This mechanism not only eliminates the time and complicated steps required for external premixing of paints in traditional spraying, greatly improving the efficiency of spraying operations, but also effectively avoids paint waste caused by excessive premixing or incomplete use because the paints are mixed instantaneously during the spraying process. This achieves efficient use of materials and cost savings, ensuring the economy and environmental protection of the entire coating process. Attached Figure Description

[0017] Figure 1An orthographic view of the mixing spray gun inside a high-pressure airless two-component spraying device proposed in this utility model;

[0018] Figure 2 A side-axis view of the mixing spray gun inside a high-pressure airless two-component spraying device proposed in this utility model;

[0019] Figure 3 An exploded view of the mixing spray gun inside a high-pressure airless two-component spraying device proposed in this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the mixing spray gun in a high-pressure airless two-component spraying device proposed in this utility model.

[0021] Legend:

[0022] 1. Spray gun; 2. Gun barrel; 3. T-joint; 4. Spray pipe; 5. Nozzle; 6. Paint inlet pipe; 7. Connecting rod; 8. Support rod; 9. Rubber stopper. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Reference Figure 1-4 The present invention provides a specific embodiment: a high-pressure airless two-component spraying equipment with internal mixing spray gun, including a spray gun 1, a gun barrel 2 fixedly connected to both sides of one side end face of the spray gun 1, a three-way block 3 fixedly connected to one side end face of the two gun barrels 2, a spray pipe 4 fixedly connected to the middle of one side end face of the three-way block 3, and a nozzle 5 fixedly connected to one end of the spray pipe 4.

[0025] When in use, the spray gun 1 guides two different paints to the three-way block 3 through the two gun barrels 2 for internal mixing, and then sprays them out evenly through the nozzle 5 in a high-pressure, airless manner. This design not only eliminates the time and complicated steps required for external premixing of paint in traditional spraying, greatly improving the efficiency of spraying operations, but also effectively avoids paint waste caused by excessive premixing or incomplete use because the paint is mixed instantaneously during the spraying process. This achieves efficient use of materials and cost savings, ensuring the economy and environmental friendliness of the entire coating process.

[0026] Both gun barrels 2 have a paint inlet pipe 6 fixedly connected to one side of their lower ends. By fixing the paint inlet pipe 6 to one side of the lower ends of the gun barrels 2, it is ensured that the paint flows into the gun barrels 2, making the paint supply more uniform and continuous. This ensures that the paint supply will not be interrupted during the spraying process, which helps to improve the efficiency and stability of the spraying operation. Both sides of one end of the spray gun 1 are slidably connected to connecting rods 7. Both connecting rods 7 are fixedly connected to support rods 8 on one side of their outer ends. One end of both support rods 8 is rotatably connected to the spray gun 1. The connecting rods 7 and support rods 8 can move the rubber stopper 9 inside the gun barrel 2, thereby controlling the spraying of the paint. One end of both connecting rods 7 extends into the inside of the gun barrel 2 and is fixedly connected to the rubber stopper 9. The rubber stopper 9 can precisely control the inflow and outflow of paint by opening or closing the paint inlet pipe 6.

[0027] Working principle: When using this spray gun 1, the operator connects the paint from the two paint buckets to the paint inlet pipe 6 through the upper hose. Then, the two different paints are guided to the three-way block 3 through the two gun tubes 2 for internal mixing. The mixture is then evenly sprayed out through the nozzle 5 in a high-pressure, airless manner. This mechanism not only eliminates the time and complicated steps required for external premixing of paint in traditional spraying, greatly improving the efficiency of spraying operations, but also effectively avoids paint waste caused by excessive premixing or incomplete use because the paint is mixed instantaneously during the spraying process. This achieves efficient use of materials and cost savings, ensuring the economy and environmental friendliness of the entire coating process.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-pressure airless two-component spraying device with an internal mixing spray gun, comprising a spray gun (1), characterized in that: The spray gun (1) has barrels (2) fixedly connected to both sides of one side end face. A three-way block (3) is fixedly connected to one side end face of the two barrels (2). A spray pipe (4) is fixedly connected to the middle of one side end face of the three-way block (3). A nozzle (5) is fixedly connected to one end of the spray pipe (4).

2. A high pressure, airless, twin fluid, in-line, two-component spray gun according to claim 1, characterized in that: Each of the two gun barrels (2) has a paint inlet pipe (6) fixedly connected to one side of its lower end.

3. A high pressure, airless, twin fluid, in-line mixing spray gun according to claim 1, wherein: The spray gun (1) has connecting rods (7) slidably connected to both sides of one end inside. The two connecting rods (7) are fixedly connected to support rods (8) on the outer side of each of the two support rods (8). One end of each support rod (8) is rotatably connected to the spray gun (1).

4. A high pressure, airless, twin fluid, in-line, two-component spray gun according to claim 3, characterized in that: One end of each of the two connecting rods (7) extends into the interior of the barrel (2) and is fixedly connected with a rubber plug (9).