A powder spraying device for magnetic particle inspection

By designing a magnetic powder testing device that includes a tank, a motor, a stirring rod, and a powder spraying mechanism, the problem of nozzle clogging caused by magnetic powder sedimentation was solved, and uniform spraying and efficient detection of magnetic powder were achieved.

CN224443447UActive Publication Date: 2026-07-03SUZHOU MOSEN MECHANICAL & ELECTRICAL CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU MOSEN MECHANICAL & ELECTRICAL CO LTD
Filing Date
2025-08-01
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Magnetic powder is prone to precipitating and forming lumps or granules during the preparation process, which can clog the spray gun nozzle and affect the powder spraying operation.

Method used

Design a powder spraying device that includes a tank, a motor, a rotating shaft, a stirring rod, and a powder spraying mechanism. The motor drives the rotating shaft to drive the stirring rod and stirring paddle for stirring. Combined with a sieve filter, the raw materials are ensured to be in powder form. A liquid pump is used to extract the powder and spray it through a telescopic pipe and nozzle.

Benefits of technology

It effectively prevents raw material sedimentation, ensures that the nozzle does not clog, achieves uniform spraying of magnetic powder, and improves detection efficiency.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224443447U_ABST
    Figure CN224443447U_ABST
Patent Text Reader

Abstract

This utility model discloses a powder spraying device for magnetic particle testing, relating to the technical field of powder spraying devices. It includes a tank, a motor mounted on the top of the tank, a rotating shaft at the bottom of the motor, two sets of stirring rods on the outside of the rotating shaft, and multiple auxiliary rods between each set of stirring rods. A stirring paddle is located at the bottom of the rotating shaft. This utility model uses the motor to drive the rotating rods, which in turn drives the multiple sets of stirring rods and auxiliary rods to rotate, thus thoroughly mixing the raw materials inside the tank. After being mixed on the screen, the raw materials gradually form powder, which then seeps through the screen's openings to the bottom of the tank. As the rotating shaft continues to rotate, the stirring paddle at the bottom of the shaft stirs the material at the bottom of the tank, preventing sedimentation and ensuring that the subsequent nozzle spraying of magnetic powder will not cause blockage.
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Description

Technical Field

[0001] This utility model relates to the technical field of powder spraying devices, specifically a powder spraying device for magnetic particle testing. Background Technology

[0002] Magnetic powder plays an indispensable role in our daily lives and industrial production. In short, magnetic powder is a powdery substance with magnetic properties. It is made from magnetic metals such as iron, cobalt, and nickel or their alloys through special processes. Sometimes, it also contains some non-magnetic materials as additives to improve its properties.

[0003] The existing patent announcement number CN207882214U discloses a magnetic particle testing device, specifically a spray bottle for magnetic particle testing. It includes a bottle body and a cover screwed to it. A paste storage box with an open top is located on the upper part of the bottle body and is vertically fixed inside the bottle body. A pressing device is connected to the paste storage box, which includes a cover plate, a connecting rod, and a pressing plate. The cover plate and pressing plate are located at opposite ends of the connecting rod, with the cover plate positioned inside the paste storage box. A narrow, elongated first channel is provided on the side wall of the paste storage box. This utility model proposes a spray bottle for magnetic particle testing. By incorporating a paste storage box into the bottle body, construction personnel can directly place the paste into the bottle to prepare the magnetic suspension during magnetic particle testing. This solves the problem of insufficient magnetic suspension in confined spaces or where water is difficult to obtain, saves time spent fetching water, and improves testing efficiency.

[0004] Using the above-mentioned technical solution, magnetic powder may precipitate during preparation, potentially forming lumps or particles that can clog the spray gun nozzle, making powder spraying difficult. Therefore, we provide a powder spraying device for magnetic powder testing. Utility Model Content

[0005] The purpose of this invention is to provide a powder spraying device for magnetic particle testing, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a powder spraying device for magnetic particle testing, comprising a tank, a motor mounted on the top of the tank, a rotating shaft mounted on the bottom of the motor, two sets of stirring rods mounted outside the rotating shaft, multiple auxiliary rods mounted between the two sets of stirring rods, a stirring paddle mounted at the bottom of the rotating shaft, a mesh screen mounted inside the tank near the top of the stirring frame, an installation chamber opened on one side of the bottom of the tank, a feed inlet opened on the top of the tank, and a powder spraying mechanism mounted inside the installation chamber.

[0007] As a further preferred embodiment of this technical solution, the powder spraying mechanism includes a liquid pump, which is fixedly installed in the installation chamber, and the output end of the top of the liquid pump is fixedly connected to the bottom end of the feed pipe.

[0008] As a further preferred embodiment of this technical solution, the top end of the feed pipe extends into the tank body, and the output end of the pump is fixedly connected to one end of the telescopic pipe.

[0009] As a further preferred embodiment of this technical solution, a nozzle is fixedly connected to the other end of the telescopic tube, and a bracket is fixedly connected to the outside of the telescopic tube, with the bracket fixedly installed inside the installation chamber.

[0010] As a further preferred embodiment of this technical solution, the bottom of the motor is fixedly installed on the top of the tank, and the output end of the bottom of the motor is fixedly connected to the top of the rotating shaft.

[0011] As a further preferred embodiment of this technical solution, the rotating shaft extends into the tank body, and two sets of stirring rods are fixedly connected to the outside of the rotating shaft, with multiple auxiliary rods fixedly connected between the two sets of stirring rods.

[0012] As a further preferred embodiment of this technical solution, a stirring paddle is fixedly connected to the bottom end of the rotating shaft, and the outside of the mesh is fixedly connected to the inner wall of the tank.

[0013] This utility model provides a powder spraying device for magnetic particle testing, which has the following beneficial effects:

[0014] (1) This utility model drives the rotating rod to rotate by starting the motor, which in turn drives multiple sets of stirring rods and auxiliary rods to rotate. Therefore, the raw materials in the tank can be fully stirred and mixed. After the raw materials on the screen are stirred and mixed, they will gradually form powder and then seep through the holes of the screen to the bottom of the tank. As the rotating shaft continues to rotate, the stirring paddle at the bottom of the rotating shaft can stir the material at the bottom of the tank, avoiding the phenomenon of sedimentation of the raw materials at the bottom of the tank, and ensuring that the subsequent nozzle will not be blocked when spraying magnetic powder.

[0015] (2) This utility model extracts magnetic powder from the tank into the telescopic tube by starting the liquid pump. The length of the telescopic tube can be adjusted. The magnetic powder can be sprayed out through the nozzle. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a powder spraying device for magnetic particle testing according to the present invention.

[0017] Figure 2 This is a cross-sectional side view of a powder spraying device for magnetic particle testing according to the present invention.

[0018] Figure 3 This is a partial side view of a powder spraying device for magnetic particle testing according to the present invention.

[0019] Figure 4 This is a side view of the powder spraying mechanism of a powder spraying device for magnetic particle testing according to the present invention.

[0020] In the diagram: 11. Tank body; 12. Motor; 13. Shaft; 14. Stirring rod; 15. Auxiliary rod; 16. Stirring paddle; 17. Strainer; 18. Installation chamber; 19. Feed inlet;

[0021] 2. Powder spraying mechanism; 21. Liquid pump; 22. Feed pipe; 23. Support; 24. Telescopic pipe; 25. Nozzle; 26. Chamber door;

[0022] 31. Casters. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0024] This utility model provides a technical solution: such as Figures 1-4 As shown, in this embodiment, a powder spraying device for magnetic particle testing includes a tank 11. A motor 12 is mounted on the top of the tank 11, and a rotating shaft 13 is mounted on the bottom of the motor 12. The bottom of the motor 12 is fixedly mounted on the top of the tank 11, and the output end of the bottom of the motor 12 is fixedly connected to the top of the rotating shaft 13. Two sets of stirring rods 14 are arranged outside the rotating shaft 13, and multiple auxiliary rods 15 are arranged between the two sets of stirring rods 14. The rotating shaft 13 extends into the tank 11, and the outside of the rotating shaft 13... Two sets of stirring rods 14 are fixedly connected, and multiple auxiliary rods 15 are fixedly connected between the two sets of stirring rods 14. A stirring paddle 16 is provided at the bottom of the rotating shaft 13. A strainer 17 is provided inside the tank 11 near the top of the stirring frame. The stirring paddle 16 is fixedly connected to the bottom of the rotating shaft 13. The outside of the strainer 17 is fixedly connected to the inner wall of the tank 11. An installation chamber 18 is provided on one side of the bottom of the tank 11. A feed inlet 19 is provided on the top of the tank 11. A powder spraying mechanism 2 is provided inside the installation chamber 18.

[0025] In this embodiment, when the device is used to process magnetic powder, the raw materials required for magnetic powder production are first poured into the tank 11 through the feed inlet 19. The raw materials will fall onto the screen 17. By starting the motor 12, the rotating rod is driven to rotate, which in turn drives multiple sets of stirring rods 14 and auxiliary rods 15 to rotate. Therefore, the raw materials in the tank can be fully stirred and mixed. After the raw materials on the screen 17 are stirred and mixed, they will gradually form powder, which will then seep through the holes of the screen 17 to the bottom of the tank 11. As the rotating shaft 13 continues to rotate, the stirring paddle 16 at the bottom of the rotating shaft 13 can stir the material at the bottom of the tank 11, avoiding the phenomenon of sedimentation of the raw materials at the bottom of the tank 11, and ensuring that the subsequent nozzle 25 will not be blocked when spraying magnetic powder.

[0026] like Figures 1-4 As shown, the powder spraying mechanism 2 includes a liquid pump 21, which is fixedly installed in the installation chamber 18. The output end of the top of the liquid pump 21 is fixedly connected to the bottom end of the discharge pipe 22. The top end of the discharge pipe 22 extends into the tank body 11. The output end of one side of the liquid pump 21 is fixedly connected to one end of the telescopic pipe 24. The other end of the telescopic pipe 24 is fixedly connected to a nozzle 25. A bracket 23 is fixedly connected to the outside of the telescopic pipe 24. The bracket 23 is fixedly installed in the installation chamber 18.

[0027] In this embodiment, after the magnetic powder is prepared, the pump 21 can be started to extract the magnetic powder in the tank 11 into the telescopic tube 24. The length of the telescopic tube 24 can be adjusted, and the magnetic powder can be sprayed out through the nozzle 25.

[0028] This utility model provides a powder spraying device for magnetic particle testing, the specific working principle of which is as follows:

[0029] When using this device to process magnetic powder, the raw materials required for production must first be injected into the tank 11 through the feed inlet 19. These raw materials will fall onto the screen 17. After starting the motor 12, the rotating rod begins to rotate, which in turn drives multiple sets of stirring rods 14 and auxiliary rods 15 to rotate synchronously, thereby achieving full stirring and mixing of the raw materials in the tank. During the stirring process, the raw materials on the screen 17 are gradually crushed into powder and filtered through the aperture of the screen 17 to the bottom of the tank 11. As the rotating shaft 13 continues to rotate, the stirring paddle 16 at its bottom end will stir the material at the bottom of the tank again to prevent the raw materials from settling and ensure that the subsequent nozzle 25 will not clog when spraying magnetic powder. After the magnetic powder is prepared, the liquid pump 21 can be started to draw the magnetic powder into the telescopic tube 24. The telescopic tube 24 is flexibly designed and its length can be adjusted according to needs. Finally, the magnetic powder is evenly sprayed out through the nozzle 25 to complete the entire processing process.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A powder spraying device for magnetic particle detection, comprising a tank body (11), characterized in that: A motor (12) is provided at the top of the tank (11), and a rotating shaft (13) is provided at the bottom of the motor (12). Two sets of stirring rods (14) are provided on the outside of the rotating shaft (13), and multiple auxiliary rods (15) are provided between the two sets of stirring rods (14). A stirring paddle (16) is provided at the bottom of the rotating shaft (13). A strainer (17) is provided inside the tank (11) near the top of the stirring frame. An installation chamber (18) is provided on one side of the bottom of the tank (11), and a feed inlet (19) is provided at the top of the tank (11). A powder spraying mechanism (2) is provided inside the installation chamber (18).

2. The powder spraying device for magnetic particle inspection according to claim 1, characterized by: The powder spraying mechanism (2) includes a liquid pump (21), which is fixedly installed in the installation chamber (18). The output end of the top of the liquid pump (21) is fixedly connected to the bottom end of the feed pipe (22).

3. The powder spraying device for magnetic particle inspection according to claim 2, characterized by: The top end of the feed pipe (22) extends into the tank body (11), and the output end of the pump (21) is fixedly connected to one end of the telescopic pipe (24).

4. The powder spraying device for magnetic particle inspection according to claim 3, characterized by: The other end of the telescopic tube (24) is fixedly connected to a nozzle (25), and a bracket (23) is fixedly connected to the outside of the telescopic tube (24). The bracket (23) is fixedly installed inside the installation chamber (18).

5. The powder spraying device for magnetic particle inspection according to claim 1, characterized by: The bottom of the motor (12) is fixedly installed on the top of the tank (11), and the output end of the bottom of the motor (12) is fixedly connected to the top of the rotating shaft (13).

6. The powder spraying device for magnetic particle inspection according to claim 1, characterized by: The rotating shaft (13) extends into the tank (11), and two sets of stirring rods (14) are fixedly connected to the outside of the rotating shaft (13). Multiple auxiliary rods (15) are fixedly connected between the two sets of stirring rods (14).

7. The powder spraying device for magnetic particle inspection according to claim 1, characterized by: The bottom end of the rotating shaft (13) is fixedly connected to the stirring paddle (16), and the outside of the mesh (17) is fixedly connected to the inner wall of the tank (11).