Laser particle size analyzer

Abstract

The utility model discloses a laser particle size analyzer, which belongs to the technical field of laser particle size analyzers and comprises a laser particle size analyzer body, an automatic clamping mechanism and a stirring circulating mechanism, the automatic clamping mechanism is arranged on the front side of the laser particle size analyzer body, and the stirring circulating mechanism is mounted on the upper side of the automatic clamping mechanism. The automatic clamping mechanism comprises a bottom shell, a fixed base, a sliding column, a supporting plate, a first rotating plate, a second rotating plate and an arc-shaped plate, the bottom shell is arranged on the front side of the laser particle size analyzer body, the fixed base is fixedly installed on the front side of the interior of the bottom shell, the sliding column is slidably connected to the fixed base, and the supporting plate is arranged on the sliding column. The supporting plate is fixedly installed on the upper side of the sliding column, and the multiple first rotating plates are arranged on the upper side of the sliding column at equal intervals in a circumferential array mode. Through the mode, the sample tank can be quickly locked and unlocked, and samples can be continuously and circularly analyzed.

Description

Technical Field

[0001] This utility model relates to the field of laser particle size analyzer technology, specifically a laser particle size analyzer. Background Technology

[0002] A laser particle size analyzer is an instrument for measuring and analyzing the abundance of physical particles, including wet dispersion and dry dispersion methods. Wet dispersion typically employs mechanical stirring, ultrasonic high-frequency oscillation, and electromagnetic circulation pumps to uniformly disperse the sample, fully disperse agglomerated particles, and ensure even distribution of particles of different sizes within the circulation system. The sample is pumped into the measuring mechanism of the laser particle size analyzer, and after being irradiated by a laser beam, it is accurately collected and measured. The particle size distribution of tin powder in solder paste is one of the key indicators affecting its printing performance and soldering reliability. Tin powder is separated from the solder paste by centrifugation after dissolving flux in a solvent (such as ethanol or isopropanol), then washed and dried with a solvent, and then dispersed. The tin powder is mixed with a dispersion medium (such as anhydrous ethanol), and a small amount of surfactant (such as sodium hexametaphosphate) is added to reduce surface tension. After ultrasonic treatment for 5-10 minutes, particle size analysis can be performed.

[0003] Chinese patent CN218584585U discloses a laser particle size analyzer, comprising: a laser particle size analyzer body, a recovery box fixedly installed on one side of the laser particle size analyzer body, two support columns fixedly installed on the bottom surface of the recovery box, and rubber pads fixedly installed on the bottom surface of the support columns; and a recovery assembly disposed on one side of the recovery box for recovering silver particles from wastewater, the recovery assembly including: a box door disposed on one side of the recovery box, and a rubber pad fixedly installed on one side of the recovery box. The recycling bin is connected to the bin door via two hinges. A water inlet is provided on the top surface of the recycling bin, and a water inlet frame is fixedly fitted inside the water inlet. Two U-shaped plates are fixedly installed on both sides of the inside of the recycling bin, with each pair of U-shaped plates forming a group. Two filter boxes are provided inside the recycling bin, and the filter boxes are movably fitted to the U-shaped plates. A first filter port is provided on the bottom surface of the upper filter box, and a first filter screen is fixedly fitted inside the first filter port. A second filter port is provided on the bottom surface of the lower filter box.

[0004] However, the technical solution of this patent has the following problems:

[0005] This patent does not allow for quick locking and unlocking of the sample container, nor does it allow for continuous cyclic analysis of the sample.

[0006] Therefore, those skilled in the art have provided a laser particle size analyzer to solve the above-mentioned problems. Utility Model Content

[0007] The purpose of this invention is to provide a laser particle size analyzer to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A laser particle size analyzer includes a laser particle size analyzer body, and further includes: an automatic clamping mechanism and a stirring and circulating mechanism. The automatic clamping mechanism is disposed on the front side of the laser particle size analyzer body, and the stirring and circulating mechanism is mounted on the upper side of the automatic clamping mechanism. The automatic clamping mechanism includes: a bottom shell, a fixed base, a sliding column, a support plate, a first rotating plate, a second rotating plate, and an arc-shaped plate. The bottom shell is disposed on the front side of the laser particle size analyzer body, the fixed base is fixedly mounted inside the front side of the bottom shell, the sliding column is slidably connected to the fixed base, the support plate is fixedly mounted on the upper side of the sliding column, a plurality of first rotating plates are arranged in an equally spaced circular array on the upper side of the sliding column, one end of the first rotating plate is hinged to the sliding column, a plurality of second rotating plates are arranged in an equally spaced circular array on the lower side of the fixed base, one end of the second rotating plate is hinged to the fixed base, the end of the first rotating plate away from the fixed base is hinged to the upper side of the arc-shaped plate, the end of the second rotating plate away from the fixed base is hinged to the lower side of the arc-shaped plate, a protrusion is provided on the upper side of the arc-shaped plate, and a sample container is provided on the upper side of the support plate.

[0010] Furthermore, the automatic clamping mechanism also includes an unlocking component, which is installed inside the fixed base;

[0011] Furthermore, the unlocking component includes: a fixed magnet and an electromagnet, wherein the fixed magnet is fixedly installed on the lower side of the sliding column and the electromagnet is fixedly installed on the upper side of the fixed base;

[0012] Furthermore, the stirring and circulating mechanism includes: a top shell, a cover plate, and an electric telescopic rod. The rear side of the top shell is hinged to the rear side of the bottom shell via a hinge. The cover plate is fixedly installed on the upper side of the top shell. One end of the electric telescopic rod is hinged to the bottom shell, and the other end of the electric telescopic rod is hinged to the rear side inside the top shell.

[0013] Furthermore, the stirring and circulating mechanism also includes a circulation assembly, which is installed inside the front side of the top shell;

[0014] Furthermore, the circulation assembly includes: an inlet pipe, an outlet pipe, a water pump, an upper connector, and a lower connector. The inlet pipe is fixedly installed on the left side of the top shell, the outlet pipe is fixedly installed on the right side of the top shell, the water pump is fixedly installed in the middle of the top shell, the outlet end of the inlet pipe is fixedly connected to the inlet end of the water pump, the upper connector is fixedly installed on the upper side of the top shell, the lower connector is fixedly installed on the lower side of the top shell, the outlet end of the water pump is connected to the front of the lower connector via a pipe, and the inlet end of the outlet pipe is connected to the front of the upper connector via a pipe.

[0015] Furthermore, the circulation assembly also includes: a stirring assembly, which is installed inside the front side of the top shell. The stirring assembly includes: a drive motor and a stirring head. The drive motor is fixedly installed inside the front side of the top shell, and the stirring head is fixedly installed on the output shaft of the drive motor.

[0016] Furthermore, the upper connector is connected to the output end of the laser particle size analyzer body via a pipe, and the lower connector is connected to the input end of the laser particle size analyzer body via a pipe.

[0017] Compared with the prior art, the beneficial effects of this utility model are: 1. In this utility model, after the electromagnet of the unlocking component of the automatic clamping mechanism is energized, it generates a magnetic field that repels the magnetic field of the fixed magnet. At this time, the automatic clamping mechanism is in the unlocked state, and the weight of the empty sample container is greater than the repulsive force between the fixed magnet and the electromagnet. The sample container is placed on the support plate of the automatic clamping mechanism, causing the support plate to move downward. The downward movement of the support plate drives the sliding column to move downward, and the downward movement of the sliding column drives the first rotating plate to rotate. The first rotating plate, the second rotating plate, the arc plate, the fixed base, and the sliding column together form a parallelogram. At this time, The rotation of the first rotating plate causes the arc-shaped plate to move towards the empty sample container. The movement of multiple arc-shaped plates towards the empty sample container quickly clamps it. The downward movement of the sliding column causes the fixed magnet to move downward. At this time, the magnetic field strength of the electromagnet is controlled by an external controller to increase the repulsive force between the electromagnet and the fixed magnet, causing the fixed magnet to move upward. The upward movement of the fixed magnet causes the sliding column to move upward, which in turn causes the first rotating plate to rotate. The rotation of the first rotating plate causes the arc-shaped plate to move away from the empty sample container, thus quickly unlocking the empty sample container. This facilitates the rapid locking and unlocking of the sample container.

[0018] 2. The electric telescopic rod of the stirring and circulation mechanism extends, causing the top shell to rotate rearward. This rotation of the top shell then causes the stirring head of the circulation assembly to rotate rearward. After the stirring head leaves the sample container, the automatic clamping mechanism is unlocked, allowing the sample container to be removed and cleaned. The sample is then dispersed ultrasonically and introduced into the sample container. The electric telescopic rod extends, causing the top shell to rotate rearward. This rotation of the top shell then causes the stirring head of the circulation assembly to rotate rearward. After the stirring head is lifted, the sample container containing the sample is placed on the support plate. The support plate moves downward, causing the sliding column to move downward. This downward movement of the sliding column causes the first rotating plate to rotate. The components include the first rotating plate, the second rotating plate, the arc-shaped plate, the fixed base, and the sliding... The columns together form a parallelogram. At this time, the first rotating plate rotates, driving the arc plate to move towards the sample container containing the sample. Multiple arc plates moving towards the sample container can quickly clamp the sample container containing the sample. The stirring head is rotated to the initial state, and the output shaft of the drive motor rotates, driving the stirring head to rotate and continuously stirring the sample in the sample container. The water pump starts, so that the sample in the sample container flows from the water inlet pipe to the water pump and then to the lower connector. The lower connector enters the laser particle size analyzer body for analysis. After analysis, the sample flows from the output end of the laser particle size analyzer body through the upper connector and then through the water outlet pipe back into the sample container for continuous analysis, which is beneficial for continuous cyclic analysis of the sample. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a front view of the present utility model;

[0021] Figure 3 A three-dimensional structural diagram of this utility model with a portion removed. Figure 1 ;

[0022] Figure 4 A three-dimensional structural diagram of this utility model with a portion removed. Figure 2 ;

[0023] Figure 5 This is a partial structural schematic diagram of the automatic clamping mechanism of this utility model.

[0024] In the diagram: 1. Laser particle size analyzer body; 2. Automatic clamping mechanism; 21. Bottom shell; 22. Fixed base; 23. Sliding column; 24. Support plate; 25. First rotating plate; 26. Second rotating plate; 27. Arc plate; 28. Protrusion; 29. ​​Sample container; 210. Fixed magnet; 211. Electromagnet; 3. Stirring and circulating mechanism; 31. Top shell; 32. Cover plate; 33. Electric telescopic rod; 34. Water inlet pipe; 35. Water outlet pipe; 36. Water pump; 37. Upper connector; 38. Lower connector; 39. Drive motor; 310. Stirring head. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] The terms "left," "right," "front," "back," "up," and "down" used in the following description refer to the orientation from the perspective of the front view.

[0027] Example 1: In some embodiments, please refer to the accompanying drawings. Figures 1-5 A laser particle size analyzer includes a laser particle size analyzer body 1, and further includes: an automatic clamping mechanism 2 and a stirring and circulating mechanism 3. The automatic clamping mechanism 2 is disposed on the front side of the laser particle size analyzer body 1, and the stirring and circulating mechanism 3 is mounted on the upper side of the automatic clamping mechanism 2. The automatic clamping mechanism 2 includes: a bottom shell 21, a fixed base 22, a sliding column 23, a support plate 24, a first rotating plate 25, a second rotating plate 26, and an arc-shaped plate 27. The bottom shell 21 is disposed on the front side of the laser particle size analyzer body 1, the fixed base 22 is fixedly mounted inside the front side of the bottom shell 21, and the sliding column 23 is slidably connected to the fixed base 22. The support plate 24 is fixedly installed on the upper side of the sliding column 23. A plurality of first rotating plates 25 are arranged in a circular array at equal intervals on the upper side of the sliding column 23. One end of the first rotating plate 25 is hinged to the sliding column 23. A plurality of second rotating plates 26 are arranged in a circular array at equal intervals on the lower side of the fixed base 22. One end of the second rotating plate 26 is hinged to the fixed base 22. The end of the first rotating plate 25 away from the fixed base 22 is hinged to the upper side of the arc plate 27. The end of the second rotating plate 26 away from the fixed base 22 is hinged to the lower side of the arc plate 27. A protrusion 28 is provided on the upper side of the arc plate 27. A sample container 29 is provided on the upper side of the support plate 24.

[0028] The automatic clamping mechanism 2 further includes an unlocking component, which is installed inside the fixed base 22.

[0029] The unlocking assembly includes a fixed magnet 210 and an electromagnet 211. The fixed magnet 210 is fixedly installed on the lower side of the sliding column 23, and the electromagnet 211 is fixedly installed on the upper side of the fixed base 22. The electromagnet 211 is electrically connected to an external controller.

[0030] After the device is started, the electromagnet 211 of the unlocking component of the automatic clamping mechanism 2 generates a magnetic field that repels the magnetic field of the fixed magnet 210. At this time, the automatic clamping mechanism 2 is in the unlocked state. The weight of the empty sample container 29 is greater than the repulsive force between the fixed magnet 210 and the electromagnet 211, so the sample container 29 is placed on the support plate 24 of the automatic clamping mechanism 2, causing the support plate 24 to move downward. The downward movement of the support plate 24 drives the sliding column 23 to move downward, which in turn drives the first rotating plate 25 to rotate. The first rotating plate 25, the second rotating plate 26, the arc plate 27, the fixed base 22, and the sliding column 23 together form a parallelogram. At this time, the rotation of the first rotating plate 25 drives the arc plate 26 to rotate. 7. Moving towards the empty sample container 29, multiple arc-shaped plates 27 can quickly clamp the empty sample container 29. The sliding column 23 moves downward, causing the fixed magnet 210 to move downward. At this time, the magnetic field of the electromagnet 211 is controlled by an external controller to increase the repulsive force between the electromagnet 211 and the fixed magnet 210, causing the fixed magnet 210 to move upward. The upward movement of the fixed magnet 210 causes the sliding column 23 to move upward, which in turn causes the first rotating plate 25 to rotate. The rotation of the first rotating plate 25 causes the arc-shaped plates 27 to move away from the empty sample container 29, thus quickly unlocking the empty sample container 29. This facilitates the rapid locking and unlocking of the sample container 29.

[0031] Example 2: In some embodiments, such as Figures 1-5 In a preferred embodiment of the present invention, the stirring and circulating mechanism 3 includes: a top shell 31, a cover plate 32, and an electric telescopic rod 33. The rear side of the top shell 31 is hinged to the rear side of the bottom shell 21 via a hinge. The cover plate 32 is fixedly installed on the upper side of the top shell 31. One end of the electric telescopic rod 33 is hinged to the bottom shell 21, and the other end of the electric telescopic rod 33 is hinged to the rear side inside the top shell 31.

[0032] The stirring and circulating mechanism 3 further includes a circulation component, which is installed inside the front side of the top shell 31.

[0033] The circulation assembly includes: an inlet pipe 34, an outlet pipe 35, a water pump 36, an upper connector 37, and a lower connector 38. The inlet pipe 34 is fixedly installed on the left side of the top shell 31, the outlet pipe 35 is fixedly installed on the right side of the top shell 31, the water pump 36 is fixedly installed on the middle side of the top shell 31, the output end of the inlet pipe 34 is fixedly connected to the input end of the water pump 36, the upper connector 37 is fixedly installed on the upper side of the top shell 31, the lower connector 38 is fixedly installed on the lower side of the top shell 31, the output end of the water pump 36 is connected to the front side of the lower connector 38 through a pipe, and the input end of the outlet pipe 35 is connected to the front side of the upper connector 37 through a pipe.

[0034] The circulation assembly further includes a stirring assembly, which is installed inside the front side of the top shell 31. The stirring assembly includes a drive motor 39 and a stirring head 310. The drive motor 39 is fixedly installed inside the front side of the top shell 31, and the stirring head 310 is fixedly installed on the output shaft of the drive motor 39.

[0035] The electric telescopic rod 33 of the stirring and circulation mechanism 3 extends and drives the top shell 31 to rotate to the rear. The rotation of the top shell 31 to the rear drives the stirring head 310 of the stirring component of the circulation assembly to rotate to the rear. After the stirring head 310 leaves the sample container 29, the automatic clamping mechanism 2 can be unlocked to remove the sample container 29 and clean it.

[0036] The upper connector 37 is connected to the output end of the laser particle size analyzer body 1 via a pipe, and the lower connector 38 is connected to the input end of the laser particle size analyzer body 1 via a pipe.

[0037] When sample analysis is to be performed, the tin powder sample separated from the solder paste is dispersed by ultrasonic waves and then introduced into the sample container 29. The electric telescopic rod 33 extends, causing the top shell 31 to rotate backward. The rotation of the top shell 31 causes the stirring head 310 of the circulation assembly to rotate backward. After the stirring head 310 is raised, the sample container 29 containing the sample is placed on the support plate 24. The support plate 24 moves downward, causing the sliding column 23 to move downward. The downward movement of the sliding column 23 causes the first rotating plate 25 to rotate. The first rotating plate 25, the second rotating plate 26, the arc plate 27, the fixed base 22, and the sliding column 23 together form a parallelogram. At this time, the rotation of the first rotating plate 25 causes the arc plate 27 to move towards the mounting plate. The sample container 29 containing the sample moves in the direction of the sample container 29, and multiple arc plates 27 move towards the sample container 29 containing the sample to quickly clamp the sample container 29 containing the sample. The stirring head 310 is rotated to the initial state, and the output shaft of the drive motor 39 rotates to drive the stirring head 310 to rotate, continuously stirring the sample in the sample container 29. The water pump 36 is started, so that the sample in the sample container 29 goes from the water inlet pipe 34 to the water pump 36 and then to the lower connector 38. The lower connector 38 enters the laser particle size analyzer body 1 for analysis. After analysis, the sample goes from the output end of the laser particle size analyzer body 1 through the upper connector 37 and then through the water outlet pipe 35 back into the sample container 29, continuously circulating and analyzing the tin powder sample.

[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A laser particle size analyzer, comprising a laser particle size analyzer body (1), characterized in that, Also includes: An automatic clamping mechanism (2) and a stirring and circulating mechanism (3) are provided. The automatic clamping mechanism (2) is located on the front side of the laser particle size analyzer body (1), and the stirring and circulating mechanism (3) is installed on the upper side of the automatic clamping mechanism (2). The automatic clamping mechanism (2) includes: a bottom shell (21), a fixed base (22), a sliding column (23), a support plate (24), a first rotating plate (25), a second rotating plate (26), and an arc plate (27). The bottom shell (21) is located on the front side of the laser particle size analyzer body (1). The fixed base (22) is fixedly installed inside the front side of the bottom shell (21). The sliding column (23) is slidably connected to the fixed base (22). The support plate (24) is fixedly installed on the sliding column. (23) On the upper side, a plurality of first rotating plates (25) are arranged in a circular array at equal intervals on the upper side of the sliding column (23). One end of the first rotating plate (25) is hinged to the sliding column (23). A plurality of second rotating plates (26) are arranged in a circular array at equal intervals on the lower side of the fixed base (22). One end of the second rotating plate (26) is hinged to the fixed base (22). The end of the first rotating plate (25) away from the fixed base (22) is hinged to the upper side of the arc plate (27). The end of the second rotating plate (26) away from the fixed base (22) is hinged to the lower side of the arc plate (27). A protrusion (28) is provided on the upper side of the arc plate (27). A sample container (29) is provided on the upper side of the support plate (24).

2. The laser particle size analyzer according to claim 1, characterized in that, The automatic clamping mechanism (2) further includes an unlocking component, which is installed in the fixed base (22).

3. The laser particle size analyzer according to claim 2, characterized in that, The unlocking assembly includes a fixed magnet (210) and an electromagnet (211). The fixed magnet (210) is fixedly installed on the lower side of the sliding column (23), and the electromagnet (211) is fixedly installed on the upper side of the fixed base (22).

4. The laser particle size analyzer according to claim 3, characterized in that, The stirring and circulating mechanism (3) includes: a top shell (31), a cover plate (32) and an electric telescopic rod (33). The rear side of the top shell (31) is hinged to the rear side of the bottom shell (21) by a hinge. The cover plate (32) is fixedly installed on the upper side of the top shell (31). One end of the electric telescopic rod (33) is hinged to the bottom shell (21), and the other end of the electric telescopic rod (33) is hinged to the rear side inside the top shell (31).

5. The laser particle size analyzer according to claim 4, characterized in that, The stirring and circulating mechanism (3) further includes a circulation component, which is installed inside the front side of the top shell (31).

6. The laser particle size analyzer according to claim 5, characterized in that, The circulation assembly includes: an inlet pipe (34), an outlet pipe (35), a water pump (36), an upper connector (37), and a lower connector (38). The inlet pipe (34) is fixedly installed on the left side of the top shell (31), the outlet pipe (35) is fixedly installed on the right side of the top shell (31), the water pump (36) is fixedly installed in the middle of the top shell (31), the output end of the inlet pipe (34) is fixedly connected to the input end of the water pump (36), the upper connector (37) is fixedly installed on the upper side of the top shell (31), the lower connector (38) is fixedly installed on the lower side of the top shell (31), the output end of the water pump (36) is connected to the front of the lower connector (38) through a pipe, and the input end of the outlet pipe (35) is connected to the front of the upper connector (37) through a pipe.

7. The laser particle size analyzer according to claim 6, characterized in that, The circulation assembly further includes a stirring assembly, which is installed inside the front side of the top shell (31).

8. The laser particle size analyzer according to claim 7, characterized in that, The upper connector (37) is connected to the output end of the laser particle size analyzer body (1) via a pipe, and the lower connector (38) is connected to the input end of the laser particle size analyzer body (1) via a pipe.

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