Metal powder granularity detection device

Abstract

The utility model discloses a metal powder particle size detection device which comprises a laser particle size detector, a laser emitting end and a laser receiving end are arranged in the laser particle size detector, an insertion cavity for a sample box to be inserted is arranged in the laser particle size detector, and the upper end of the sample box is provided with an opening. The laser emitting end and the laser receiving end are arranged above the sample box, the laser emitting end irradiates laser to the sample box, and the laser receiving end is used for receiving light scattered by a powder sample in the sample box; a pneumatic stirring mechanism for stirring a sample in the sample box is arranged in the laser particle size detector; according to the utility model, pulse-type airflow is blown into the sample box through the air nozzle, so that metal powder in the sample box is stirred, and the powder is raised, so that the powder is prevented from being accumulated together, and the detected structure is more accurate.

Description

Technical Field

[0001] The utility model relates to the technical field related to metal powder particle size detection, in particular to a metal powder particle size detection device. Background Art

[0002] With the development and innovation of processing technology, powder materials are increasingly used in the fields of automobiles, metallurgy, aerospace, aviation, transportation, biomedicine, etc., especially with the rapid development of 3D printing technology, the demand for metal powder in the manufacturing field is more urgent. High-performance metal powder has the characteristics of good fluidity, narrow particle size range, and uniform composition. It requires advanced preparation technology to obtain. After the metal powder is produced, it is necessary to classify the metal powder according to the size of the particle size to determine the particle size grade. The laser particle size analyzer is an instrument that analyzes the particle size by the spatial distribution (scattering spectrum) of the diffraction or scattered light of the particles. The particle size distribution range is an important indicator of the laser particle size analyzer. The wider the measured particle size distribution range, the wider the application field of the instrument. The laser is irradiated from above the sample, and the powder absorbs the laser light and scatters it. Within a specific angle range, the intensity of the processed light is detected to determine the powder particle size. However, the samples in the sample pool of the existing laser particle size detector are static and easily piled up together, resulting in inaccurate detection. Utility Model Content

[0003] In order to solve the defect in the prior art that the samples in the sample pool of the existing laser particle size detector are static and easily piled up, thus causing inaccurate detection, the utility model provides a metal powder particle size detection device.

[0004] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0005] The utility model discloses a metal powder particle size detection device, comprising a laser particle size detector, wherein a laser emitting end and a laser receiving end are arranged in the laser particle size detector, an insertion cavity for inserting a sample box is arranged in the laser particle size detector, and the upper end of the sample box is open, and the laser emitting end and the laser receiving end are both arranged above the sample box, and the laser emitting end irradiates the laser to the sample box, and the laser receiving end is used to receive light scattered by the powder sample in the sample box; the laser particle size detector is provided with a pneumatic stirring mechanism for stirring the sample in the sample box;

[0006] The pneumatic stirring mechanism comprises a plurality of air jets arranged on the laser particle size detector and facing the sample box, and the laser particle size detector is provided with an air supply mechanism for supplying air to the plurality of air jets, and the air jets perform pulse jetting action.

[0007] As a preferred technical solution of the utility model, the air supply mechanism includes an air pressure tank, the air outlet end of the air pressure tank is connected to an air outlet main pipe, and the air outlet main pipe is connected to each air nozzle via multiple air outlet branches, and the air outlet branches are all provided with pulse valves.

[0008] As a preferred technical solution of the utility model, it also includes an air compressor, and the air outlet end of the air compressor is connected to the air inlet end of the air pressure tank, and a one-way air inlet valve is provided therebetween.

[0009] As a preferred technical solution of the utility model, the pressure tank is provided with a pressure gauge for detecting the internal air pressure of the pressure tank.

[0010] As a preferred technical solution of the utility model, a plurality of the air nozzles are installed to perform air jetting in sequence from one side to the other side.

[0011] As a preferred technical solution of the utility model, a first magnet is provided at the front end of the sample box, and a second magnet magnetically attracted to the first magnet is provided inside the insertion cavity.

[0012] As a preferred technical solution of the present invention, a pull-out handle is provided on the outer wall of the sample box.

[0013] The beneficial effects of the utility model are:

[0014] This metal powder particle size detection device is provided with a pneumatic stirring mechanism for stirring the sample in the sample box in the laser particle size detector, and a pulsed airflow is blown into the sample box through the air nozzle, thereby stirring the metal powder in the sample box, so that the powder is lifted up, thus avoiding accumulation, and making the detection structure more accurate. Among them, several air nozzles are installed to spray air in sequence from one side to the other side, so that the metal powder in the sample box can have a better pneumatic stirring effect, and can be inflated according to the internal pressure of the air pressure tank, so that the air pressure in the air pressure tank meets the use requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0016] Figure 1 It is a structural schematic diagram of a metal powder particle size detection device of the utility model;

[0017] Figure 2 It is a structural schematic diagram of an insertion cavity of a metal powder particle size detection device of the utility model;

[0018] Figure 3 This is a partial structural schematic diagram of a metal powder particle size detection device of the utility model;

[0019] Figure 4 The utility model is a schematic diagram of the air jet distribution structure of a metal powder particle size detection device.

[0020] In the figure: 1. Laser particle size detector; 2. Laser emitting end; 3. Laser receiving end; 4. Sample box; 5. Insertion cavity; 6. Air nozzle; 7. Air supply mechanism; 8. Air pressure tank; 9. Air outlet pipe; 10. Pulse valve; 11. Air compressor; 12. Pressure gauge; 13. First magnet; 14. Second magnet; 15. Pull-out handle. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0022] Example: Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the utility model is a metal powder particle size detection device, comprising a laser particle size detector 1, wherein the laser particle size detector 1 is provided with a laser emitting end 2 and a laser receiving end 3, wherein the laser particle size detector 1 is provided with an insertion cavity 5 for inserting a sample box 4, and the upper end of the sample box 4 is open, and the laser emitting end 2 and the laser receiving end 3 are both arranged above the sample box 4, and the laser emitting end irradiates the laser to the sample box 4, and the laser receiving end 3 is used to receive the light scattered by the powder sample in the sample box 4; it is characterized in that the laser particle size detector 1 is provided with a pneumatic stirring mechanism for stirring the sample in the sample box 4;

[0023] The pneumatic stirring mechanism includes a plurality of air nozzles 6 disposed on the laser particle size detector 1 and facing the sample box 4, and an air supply mechanism 7 for supplying air to the plurality of air nozzles is disposed in the laser particle size detector 1, and the air nozzles 6 perform pulse jetting. The laser particle size detector 1 is provided with a pneumatic stirring mechanism for stirring the sample in the sample box 4, and a pulsed airflow is blown into the sample box 4 through the air nozzles 6, thereby stirring the metal powder in the sample box 4, so that the powder is lifted up, thus avoiding accumulation together and making the detection structure more accurate.

[0024] The air supply mechanism 7 comprises an air pressure tank 8, the outlet end of the air pressure tank 8 is connected to an air outlet main pipe 9, and the air outlet main pipe 9 is connected to each air nozzle 6 via a plurality of air outlet branches, and the air outlet branches are each provided with a pulse valve 10.

[0025] Among them, it also includes an air compressor 11, and the air outlet end of the air compressor 11 is connected to the air inlet end of the air pressure tank 8, and a one-way air inlet valve is provided therebetween. The air pressure tank 8 is provided with a barometer 12 for detecting the internal air pressure of the air pressure tank 8, and can be inflated according to the size of the internal pressure of the air pressure tank 8, so that the air pressure in the air pressure tank 8 meets the use requirements.

[0026] Among them, a plurality of the air jets 6 are installed to perform air jets in sequence from one side to the other side. In this way, the metal powder in the sample box 4 can have a better pneumatic stirring effect.

[0027] The front end of the sample box 4 is provided with a first magnet 13, and the interior of the insertion cavity 5 is provided with a second magnet 14 that is magnetically attracted to the first magnet 13. In this way, the sample box 4 has a better positioning effect under the action of the magnetic attraction between the first magnet 13 and the second magnet 14.

[0028] Wherein, a pull-out handle 15 is provided on the outer wall of the sample box 4, so as to facilitate pulling out the sample box and facilitating assembly and disassembly of the sample box.

[0029] When working, the metal powder particle size detection device is provided with a pneumatic stirring mechanism for stirring the sample in the sample box 4 in the laser particle size detector 1, and a pulsed airflow is blown into the sample box 4 through the air nozzle 6, thereby stirring the metal powder in the sample box 4, so that the powder is lifted up, thus avoiding accumulation and making the detection structure more accurate. Among them, several air nozzles 6 are installed to spray in sequence from one side to the other side, so that the metal powder in the sample box 4 can have a good pneumatic stirring effect, and can be inflated according to the internal pressure of the air pressure tank 8, so that the air pressure in the air pressure tank 8 meets the use requirements.

[0030] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A metal powder particle size detection device, comprising a laser particle size detector (1), wherein the laser particle size detector (1) is provided with a laser emitting end (2) and a laser receiving end (3), wherein the laser particle size detector (1) is provided with an insertion cavity (5) for inserting a sample box (4), wherein the upper end of the sample box (4) is open, and the laser emitting end (2) and the laser receiving end (3) are both arranged above the sample box (4), and the laser emitting end irradiates the sample box (4) with a laser, and the laser receiving end (3) is used to receive light scattered by a powder sample in the sample box (4); characterized in that: The laser particle size detector (1) is provided with a pneumatic stirring mechanism for stirring the sample in the sample box (4); The pneumatic stirring mechanism comprises a plurality of air jets (6) arranged on the laser particle size detector (1) and facing the sample box (4), and an air supply mechanism (7) for supplying air to the plurality of air jets is arranged in the laser particle size detector (1), and the air jets (6) perform a pulse jetting action.

2. A metal powder particle size detection device according to claim 1, characterized in that: The air supply mechanism (7) comprises an air pressure tank (8), the air outlet end of the air pressure tank (8) is connected to an air outlet main pipe (9), and the air outlet main pipe (9) is connected to each air nozzle (6) via a plurality of air outlet branch pipes, and the air outlet branch pipes are each provided with a pulse valve (10).

3. A metal powder particle size detection device according to claim 2, characterized in that: It also includes an air compressor (11), wherein the air outlet end of the air compressor (11) is connected to the air inlet end of the air pressure tank (8), and a one-way air inlet valve is provided therebetween.

4. A metal powder particle size detection device according to claim 2, characterized in that: The air pressure tank (8) is provided with an air pressure gauge (12) for detecting the internal air pressure of the air pressure tank (8).

5. The metal powder particle size detection device according to claim 1, characterized in that: A plurality of the air jets (6) are installed in sequence from one side to the other side to perform air jetting.

6. A metal powder particle size detection device according to claim 1, characterized in that: A first magnet (13) is provided at the front end of the sample box (4), and a second magnet (14) magnetically attracted to the first magnet (13) is provided inside the insertion cavity (5).

7. A metal powder particle size detection device according to claim 1, characterized in that: A pull-out handle (15) is provided on the outer wall of the sample box (4).

Images