A machine vision particle size analyzer with an angle adjustment mechanism

Abstract

This invention discloses a machine vision particle size analyzer with an angle adjustment mechanism, comprising a housing, an inner transparent cover, the top of which is connected to a feeder, and a laser emitting device mounted on one side of the transparent cover. The laser emitting device is mounted on a first mounting base, and a detector is mounted on a second mounting base. The first and second mounting bases are rotatably connected to a support base via shafts on both sides. The first and second mounting bases are driven to rotate by adjustment motors mounted on the support base. The two adjustment motors respectively drive the laser emitting device and the detector to adjust their pitch angles. In use, this invention allows the two adjustment motors to independently adjust the pitch angles of the laser emitting device and the detector. Simultaneously, the spacing between the laser, the beam expander group, and the Fourier lens group can be adjusted to facilitate calibration of the laser beam emitted by the laser.

Description

Technical Field

[0001] This utility model relates to the field of particle size analyzer technology, specifically a machine vision particle size analyzer with an angle adjustment mechanism. Background Technology

[0002] A particle size analyzer is a device used to measure the size distribution of materials, primarily testing the size and distribution of solid particles through physical methods. Particle size analyzers typically calculate particle size distribution based on indicators such as particle settling velocity or scattered light intensity, and present the results in the form of histograms, cumulative curves, etc. They have wide applications in multiple fields, including chemical, pharmaceutical, food, and environmental protection.

[0003] For laser particle size analyzers, the internal components include a laser emitting section and a detection section for receiving laser signals. However, both the laser emitting and detection sections are fixed inside the machine body. When a deviation occurs in the detected image, the laser emitting and detection sections cannot be aligned in position, requiring the outer casing to be opened for adjustment. Therefore, we propose a machine vision particle size analyzer with an angle adjustment mechanism. Utility Model Content

[0004] This invention provides a machine vision particle size analyzer with an angle adjustment mechanism, which has the advantage of allowing convenient position and angle adjustment of the laser emitting device and the detection device, and solves the problems mentioned in the background art.

[0005] The technical solution of this utility model is implemented as follows: A machine vision particle size analyzer with an angle adjustment mechanism includes a housing, a transparent cover inside the housing, the top of the transparent cover being connected to a feeder, a laser emitting device on one side of the transparent cover being mounted on a first mounting base, and a detector on the other side being mounted on a second mounting base. The first and second mounting bases are rotatably connected to a support base via shafts on both sides. The first and second mounting bases are driven to rotate by adjustment motors, which are respectively mounted on the support base. The two adjustment motors respectively drive the laser emitting device and the detector to adjust their pitch angles.

[0006] Preferably, the bottom of the outer shell is provided with a material inlet, a material container is placed inside the material inlet, the material inlet is located directly below the transparent cover, and the outer shell above the material inlet is provided with a material discharge port, the bottom of the transparent cover is connected to the material discharge port.

[0007] Preferably, the laser emitting device includes a laser located at the top of the first mounting body away from the transparent cover. A beam expander group is provided on one side of the laser, and a Fourier lens group is provided on one side of the beam expander group. The laser emitted by the laser passes through the beam expander group and the Fourier lens group in sequence and irradiates the transparent cover.

[0008] Preferably, the bottom of the beam expander group and the Fourier lens group are respectively mounted on the third guide rail via sliders. The third guide rail is parallel to the laser. The two sides of the third guide rail are respectively provided with third linear drive modules, and the two third linear drive modules are respectively connected to the beam expander group and the Fourier lens group.

[0009] Preferably, the support bases are respectively mounted on the second guide rail by sliders. The second guide rail is perpendicular to the third guide rail. The second guide rail is mounted on the second support. A second linear drive module connected to the support base is provided on one side of the second support. The bottom of the second support is mounted on the first guide rail by sliders. The first guide rail is mounted on the first support. A first linear drive module connected to the second support is provided on one side of the first support.

[0010] Preferably, the housing contains a control module, which is electrically connected to the laser emitting device, the detector, the regulating motor, the second linear drive module, the fourth linear drive module, the third linear drive module, the first linear drive module, and the feeder.

[0011] Preferably, the outer casing surface is provided with a display and operation buttons, and the display and operation buttons are electrically connected to the control module.

[0012] Compared with the prior art, this utility model can drive the laser emitting device and detector to adjust the pitch angle through two adjusting motors during use. At the same time, the distance between the laser, the beam expander group and the Fourier lens group can be adjusted to facilitate the calibration of the laser beam emitted by the laser. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the internal structure of this utility model.

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model.

[0016] Figure 3 This is a cross-sectional view of the present invention.

[0017] Figure 4 This is the front view of the present invention.

[0018] In the diagram: 1. First support; 2. Second support; 3. Second guide rail; 4. Second linear drive module; 5. First mounting base; 6. Laser; 7. Beam expander group; 8. Fourier lens group; 9. Fourth linear drive module; 10. Third guide rail; 11. Third linear drive module; 12. First guide rail; 13. First linear drive module; 14. Detector; 15. Second mounting base; 16. Adjustment motor; 17. Support base; 18. Shaft; 19. Feeder; 20. Material inlet; 21. Material drop outlet; 22. Material container; 23. Outer shell; 24. Control module; 25. Transparent cover. Detailed Implementation

[0019] The technical solution of this utility model will be clearly and completely described below with reference to its embodiments. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] Reference Figures 1 to 4 This utility model provides a technical solution: a machine vision particle size analyzer with an angle adjustment mechanism, including a housing 23, with support pads at the four corners of the bottom of the housing 23, the support pads being supported on a flat surface. A transparent cover 25, which is a transparent glass cover, is provided inside the housing 23. The top of the transparent cover 25 is connected to a feeder 19, which is located at the top of the housing 23. The feeder 19 is used to store the material to be tested, and it can convey the material outwards at a uniform speed through vibration, causing the material to be tested to fall uniformly and dispersedly into the transparent cover 25.

[0021] To facilitate the collection of falling materials, such as Figure 3 As shown, a material inlet 20 is provided at the bottom of the outer shell 23, and a material container 22 is placed inside the material inlet 20. The material inlet 20 is located directly below the transparent cover 25, and a material discharge port 21 is provided on the outer shell 23 above the material inlet 20. The bottom of the transparent cover 25 is connected to the material discharge port 21, so after the material passes through the transparent cover 25, it falls directly from the material discharge port 21 into the material container 22 for storage, thereby collecting the material again. Moreover, the material container 22 is easy to remove. After the material is cleaned up, the material container 22 can be placed under the material inlet 20.

[0022] Furthermore, a laser emitting device is provided on one side of the transparent cover 25 and is mounted on the first mounting base 5. A detector 14 is provided on the other side of the transparent cover 25 and is mounted on the second mounting base 15. The laser emitting device is used to emit a laser beam toward the transparent cover 25, while the detector 14 is used to detect the laser signal after passing through the transparent cover 25.

[0023] During use, such as Figure 1 and Figure 2 As shown, the first mounting base 5 and the second mounting base 15 are rotatably connected to the support base 17 via shafts 18 on both sides, allowing both the first mounting base 5 and the second mounting base 15 to rotate freely around the support base 17. The first mounting base 5 and the second mounting base 15 are driven to rotate by adjusting motors 16. During installation, the adjusting motors 16 are respectively mounted on the support base 17. Therefore, the two adjusting motors 16 can respectively drive the laser emitting device and the detector 14 to adjust their pitch angle.

[0024] The first mounting base 5 and the second mounting base 15 can not only adjust the pitch angle, but also move forward and backward and left and right. Specifically, the support base 17 is mounted on the second guide rail 3 via sliders. The second guide rail 3 is mounted on the second support 2. A second linear drive module 4 connected to the support base 17 is located on one side of the second support 2. The second linear drive module 4 can drive the support base 17 to adjust forward and backward along the second guide rail 3.

[0025] The bottom of the second support 2 is mounted on the first guide rail 12 via a slider. The first guide rail 12 is mounted on the first support 1. A first linear drive module 13 connected to the second support 2 is provided on one side of the first support 1. The first support 1 is located inside the housing 23, so the first linear drive module 13 can drive the support body 17 to adjust in the left and right directions. Therefore, the laser emitting device and detector 14 can move in the front and back direction of the transparent cover 25, and can also move closer to or away from the transparent cover 25.

[0026] Furthermore, the laser emitting device includes a laser 6 disposed on the top of the first mounting body 5 at the end away from the transparent cover 25. A beam expander group 7 is provided on one side of the laser 6, and a Fourier lens group 8 is provided on one side of the beam expander group 7. The laser emitted by the laser 6 passes through the beam expander group 7 and the Fourier lens group 8 in sequence and irradiates the transparent cover 25.

[0027] The beam expander group 7, the Fourier lens group 8, and the laser 6 need to meet certain distance requirements. Therefore, the bottoms of the beam expander group 7 and the Fourier lens group 8 are respectively mounted on the third guide rail 10 via sliders. The third guide rail 10 is parallel to the laser, and the second guide rail 3 is perpendicular to the third guide rail 10. The two sides of the third guide rail 10 are respectively provided with third linear drive modules 11. The two third linear drive modules 11 are connected to the beam expander group 7 and the Fourier lens group 8, so the beam expander group 7 and the Fourier lens group 8 can move along the third guide rail 10 under the drive of the third linear drive modules 11, so that the position of the beam expander group 7 and the Fourier lens group 8 can be adjusted, thereby achieving the optimal matching distance between the beam expander group 7, the Fourier lens group 8, and the laser 6.

[0028] Furthermore, the housing 23 is equipped with a control module 24, which is electrically connected to the laser emitting device, detector 14, adjusting motor 16, second linear drive module 4, fourth linear drive module 9, third linear drive module 11, first linear drive module 13, and feeder 19. The housing 23 is also equipped with a display and operation buttons, which are electrically connected to the control module 24.

[0029] Based on the above embodiments, when using the visual particle size analyzer proposed in this application, the material to be tested is placed in the feeder 19 for storage. It should be noted that the volume of the material stored in the feeder 19 should be smaller than the volume of the equalization container 22, so that the material can be completely stored in the equalization container 22 after passing through the transparent cover 25.

[0030] During operation, the laser emitted by laser 6 passes sequentially through beam expander group 7 and Fourier lens group 8, illuminating the transparent cover 25 before being detected by detector 14. Detector 14 then transmits the data to control module 24. Most importantly, the spacing between laser 6, beam expander group 7, and Fourier lens group 8 can be adjusted to achieve the optimal illumination distance. Furthermore, both detector 14 and the laser emitting device can have their elevation angles adjusted, thus satisfying the calibration requirements between detector 14 and the laser emitting device.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. 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 machine vision particle size detector having an angle adjustment mechanism, comprising a housing (23), characterized in that, The outer casing (23) is equipped with a transparent cover (25), and the top of the transparent cover (25) is connected to the feeder (19); A laser emitting device is provided on one side of the transparent cover (25), which is mounted on the first mounting base (5), and a detector (14) is provided on the other side, which is mounted on the second mounting base (15); The first mounting base (5) and the second mounting base (15) are rotatably connected to the support base (17) via shafts (18) on both sides. The first mounting base (5) and the second mounting base (15) are driven to rotate by the adjustment motor (16). The adjustment motor (16) is installed on the support base (17). The two adjustment motors (16) drive the laser emitting device and the detector (14) to adjust the pitch angle respectively.

2. The machine vision particle size detector with an angle adjustment mechanism of claim 1, wherein, The bottom of the outer shell (23) is provided with a material inlet (20), and a material container (22) is placed inside the material inlet (20). The material inlet (20) is located directly below the transparent cover (25), and the outer shell (23) above the material inlet (20) is provided with a material drop outlet (21). The bottom of the transparent cover (25) is connected to the material drop outlet (21).

3. The machine vision particle size detector with an angle adjustment mechanism as claimed in claim 1, wherein, The laser emitting device includes a laser (6) located at the top of the first mounting body (5) away from the transparent cover (25). A beam expander group (7) is provided on one side of the laser (6), and a Fourier lens group (8) is provided on one side of the beam expander group (7). The laser emitted by the laser (6) passes through the beam expander group (7) and the Fourier lens group (8) in sequence and irradiates the transparent cover (25).

4. The machine vision particle size detector having an angle adjustment mechanism as claimed in claim 3, wherein, The bottom of the beam expander group (7) and the Fourier lens group (8) are respectively set on the third guide rail (10) by sliders. The third guide rail (10) is parallel to the laser. The two sides of the third guide rail (10) are respectively provided with the third linear drive module (11), and the two third linear drive modules (11) are respectively connected to the beam expander group (7) and the Fourier lens group (8).

5. The machine vision particle size analyser with an angle adjustment mechanism as claimed in claim 4, wherein, The support body (17) is respectively set on the second guide rail (3) by the slider. The second guide rail (3) is perpendicular to the third guide rail (10). The second guide rail (3) is installed on the second support (2). A second linear drive module (4) connected to the support body (17) is provided on one side of the second support (2). The bottom of the second support (2) is mounted on the first guide rail (12) by a slider. The first guide rail (12) is set on the first support (1). A first linear drive module (13) connected to the second support (2) is provided on one side of the first support (1).

6. The machine vision particle size analyser with an angle adjustment mechanism as claimed in claim 5, wherein, The outer casing (23) contains a control module (24), which is electrically connected to the laser emitting device, the detector (14), the regulating motor (16), the second linear drive module (4), the fourth linear drive module (9), the third linear drive module (11), the first linear drive module (13), and the feeder (19).

7. The machine vision particle size analyzer with an angle adjustment mechanism as described in claim 6, characterized in that, The outer casing (23) has a display and operation buttons on its surface, and the display and operation buttons are electrically connected to the control module (24).

Images