An optical screening machine

Abstract

This utility model discloses an optical sorting machine for detecting a cylindrical sample. It includes a frame with a feeding mechanism, a conveying mechanism, and a sorting mechanism arranged sequentially along the conveying direction of the sample. An air blowing device is provided on one side of the feeding mechanism to blow off stacked samples. The conveying mechanism includes a conveyor belt and a first baffle. One end of the conveyor belt corresponds to the discharge end of the feeding mechanism, and the first baffle is positioned above the conveyor belt. A connecting plate is provided between the other end of the conveyor belt and the sorting mechanism, and a second baffle is provided on one side of the connecting plate. This application improves the accuracy of sample detection by incorporating the air blowing device and the baffle.

Description

Technical Field

[0001] This utility model belongs to the technical field of optical inspection equipment and relates to an optical sorting machine. Background Technology

[0002] During the production of parts, it is necessary to check whether the ports or appearance meet the production standards. In general, many companies and factories rely on quality inspectors to screen for defects by visual inspection and manual measurement. This inspection method is not only inefficient, but also has a high rate of missed or misjudged inspections due to subjective differences in the inspectors' judgments and fatigue or mistakes from long-term work.

[0003] Using an optical sorting machine to screen samples can effectively solve the above problems. As an automated inspection device, the optical sorting machine acquires images of the samples to be tested through a camera, converts physical characteristics into digital models, and then analyzes parameters such as the size and shape of the samples through image processing algorithms. This inspection method can significantly improve inspection efficiency and accuracy. In existing technologies, the items to be inspected may stack, shift, or roll during transportation and vibration, resulting in some blind spots for the inspection camera and thus insufficient inspection accuracy. Utility Model Content

[0004] The purpose of this invention is to provide a probe port detection device, aiming to solve the problems in the existing technology.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an optical sorting machine for detecting cylindrical samples of varying diameters, characterized in that it includes a frame, wherein the frame is provided with a feeding mechanism, a conveying mechanism, and a sorting mechanism arranged sequentially along the conveying direction of the sample to be detected; a blowing device for blowing off stacked samples is provided on one side of the feeding mechanism; the conveying mechanism includes a conveyor belt and a first baffle, one end of the conveyor belt corresponding to the discharge end of the feeding mechanism, the first baffle being disposed above the conveyor belt and the gap between the first baffle and the conveyor belt being the maximum diameter of the sample; a connecting plate is provided between the other end of the conveyor belt and the sorting mechanism, a second baffle is provided on one side of the connecting plate, the second baffle being disposed above the sorting mechanism and the gap between the second baffle and the connecting plate being 1-1.2 times the maximum diameter of the sample.

[0006] Optionally, the frame is further provided with a vision module, which includes a horizontal inspection camera and a vertical inspection camera; there are multiple horizontal inspection cameras arranged in parallel on both sides of the conveyor belt; there are multiple vertical inspection cameras respectively located above the feeding mechanism and the sorting mechanism.

[0007] Optionally, both the horizontal inspection camera and the vertical inspection camera are equipped with an angle adjustment unit.

[0008] Optionally, the horizontal inspection camera and the vertical inspection camera also include a ring light for supplemental lighting.

[0009] Optionally, the feeding mechanism further includes a feeding vibratory plate and a feeding channel; one end of the feeding channel is connected to the feeding vibratory plate, and the other end is connected to the conveyor belt.

[0010] Optionally, the conveyor belt is provided with a plurality of guide grooves adapted to the sample at intervals. The area between each two adjacent guide grooves of the conveyor belt is a plane. The guide grooves are recessed relative to the plane of the conveyor belt and the depth of the recessed grooves is greater than or equal to the maximum diameter of the sample. The first baffle abuts against the plane of the conveyor belt.

[0011] Optionally, the sorting mechanism includes a sorting disc, with one end of the connecting plate connected to the conveyor belt and the other end located on top of the sorting disc.

[0012] Optionally, the sorting disc has a V-shaped groove circumferentially oriented along its edge, one end of the connecting plate is aligned with the opening of the V-shaped groove, the opening of the V-shaped groove is 1.2 to 1.5 times the maximum diameter of the sample, and the depth of the V-shaped groove is 1.5 to 1.8 times the minimum radius of the sample.

[0013] Optionally, the sorting mechanism further includes a sorting assembly, which includes multiple air blowing devices and multiple sorting boxes. The sorting boxes are located below the sorting disc, and the air blowing devices are disposed on one side of the sorting disc and used to blow samples into the corresponding sorting boxes.

[0014] Optionally, the bottom of the sorting mechanism is further provided with a lifting slide, which is located below the sorting disc.

[0015] The beneficial effects of this utility model are as follows: By setting the first baffle and the second baffle, this application can limit the placement position of the sample, and the feeding mechanism is also equipped with an air blowing device, which can improve the quality of the image captured by the detection camera and thus increase the detection accuracy of the sample, as the items to be tested may stack, shift, or roll during the conveying and vibration process. Attached Figure Description

[0016] Figure 1 A three-dimensional structural diagram of the optical sorting machine provided by this utility model;

[0017] Figure 2 A three-dimensional structural diagram of the optical sorting machine provided by this utility model from another angle;

[0018] Figure 3 for Figure 2 Enlarged view of the structure at point A;

[0019] Figure 4 for Figure 2 Enlarged view of the structure at point B;

[0020] Figure 5 A schematic diagram of the planar structure of the optical sorting machine provided by this utility model;

[0021] Figure 6 for Figure 5 Enlarged view of the structure at point C;

[0022] Figure 7 A three-dimensional structural diagram of the sorting mechanism provided by this utility model.

[0023] The reference numerals in the attached drawings are explained as follows: 1. Frame; 2. Feeding mechanism; 20. Feeding vibratory feeder; 21. Feeding channel; 3. Conveying mechanism; 30. Conveyor belt; 301. Guide trough; 31. First baffle; 4. Sorting mechanism; 40. Sorting disc; 401. V-groove; 41. Sorting assembly; 411. Second air blowing device; 412. Sorting box; 5. First air blowing device; 6. Connecting plate; 7. Second baffle; 8. Vision module; 80. Horizontal inspection camera; 81. Vertical inspection camera; 83. Angle adjustment unit; 84. Ring light. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0025] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] The following is combined Figures 1 to 7 The technical solution of this utility model will be explained in detail.

[0027] In an embodiment of this application, an optical sorting machine is disclosed for detecting a cylindrical sample. The machine includes a frame 1, which has a feeding mechanism 2, a conveying mechanism 3, and a sorting mechanism 4 arranged sequentially along the conveying direction of the sample to be detected. The feeding mechanism 2 has an air blowing device on one side for blowing off stacked samples. The conveying mechanism 3 includes a conveyor belt 30 and a first baffle 31. One end of the conveyor belt 30 corresponds to the discharge end of the feeding mechanism 2. The first baffle 31 is positioned above the conveyor belt 30, and the gap between the first baffle and the conveyor belt 30 is equal to the maximum diameter of the sample. A connecting plate 6 is provided between the other end of the conveyor belt 30 and the sorting mechanism 4. A second baffle 7 is positioned on one side of the connecting plate 6, above the sorting mechanism 4, and the gap between the second baffle 7 and the connecting plate 6 is 1-1.2 times the maximum diameter of the sample.

[0028] Specifically, this application provides an optical sorting machine for detecting a cylindrical sample, such as a probe. In this application, the cylindrical sample includes both conventional standard cylindrical objects and cylindrical objects with varying diameters, where cylindrical objects with varying diameters refer to approximately cylindrical objects with different diameters at different locations. This application uses a cylindrical probe with varying diameters as an example; this probe can be used as a tool for detecting, measuring, or transmitting signals. The probe, as the sample to be detected, has different diameter segments distributed along the axial direction, wherein the diameter is largest at one end of the sample, and this maximum diameter is denoted as the maximum diameter; the diameter is smallest at the other end of the sample, and this minimum diameter is denoted as the minimum diameter.

[0029] refer to Figures 1 to 6 The optical sorting machine involved in this application includes a feeding mechanism 2, a conveying mechanism 3, and a sorting mechanism 4 mounted on a frame 1. The feeding mechanism 2, the conveying mechanism 3, and the sorting mechanism 4 are arranged sequentially along the conveying direction during sample testing. It is understood that the arrangement order of the feeding mechanism 2, the conveying mechanism 3, and the sorting mechanism 4 is consistent with the conveying direction and order during sample testing. That is, during sample testing, the sample needs to pass through the feeding mechanism 2, the conveying mechanism 3, and then reach the sorting mechanism 4 in sequence. However, its spatial layout can adopt a straight or zigzag layout according to actual needs. A blowing device is provided on one side of the feeding mechanism 2, referred to as the first blowing device 5. The actuating component of the first blowing device 5 can be a nozzle. The nozzle is located at the bottom or outer periphery of the feeding mechanism 2 near the discharge port. It can blow off some samples to prevent the samples from piling up. The first blowing device 5 can be controlled manually or automatically to blow air.

[0030] The conveying mechanism 3 includes a conveyor belt 30 and a first baffle 31. One end of the conveyor belt 30 corresponds to the discharge end of the feeding mechanism 2, that is, the discharge end of the feeding mechanism 2 can be connected to the conveyor belt 30, or the discharge end of the feeding mechanism 2 is located above the conveyor belt 30. The sample should be able to enter the conveyor belt 30 relatively accurately after being output from the feeding mechanism 2. The first baffle 31 is located above the conveyor belt 30 and the gap between the first baffle and the conveyor belt 30 is the maximum diameter of the sample.

[0031] In one embodiment, the conveyor belt 30 is a smooth, flat moving belt. The sample is placed horizontally on the conveyor belt 30 and moves with the conveyor belt 30. At this time, there is a gap between the first baffle 31 and the conveyor belt 30, and the distance of the gap is consistent with the maximum diameter of the sample. That is, only one sample can pass between the first baffle 31 and the conveyor belt 30 at a time, which can prevent the samples from stacking on the conveyor belt 30 to a certain extent. In another embodiment, the conveyor belt 30 is provided with multiple grooves at intervals along its own length direction, and each pair of adjacent grooves is a plane. The groove is used to place the sample, and the depth of the groove is the maximum diameter of the sample. The first baffle 31 and a plane of the conveyor belt 30 are at the same height, and there is a gap between the bottom of the groove of the first baffle 31 and the conveyor belt 30. The gap distance is the maximum diameter of the sample. In this way, when the sample is placed in the groove in an incorrect posture or position, the sample will exceed the height of the plane of the conveyor belt 30. The first baffle 31 can form an obstruction to ensure that the sample is placed in the groove of the conveyor belt 30 in the correct posture. In another embodiment, the conveyor belt 30 is provided with a groove, but the depth of the groove is less than the maximum diameter of the sample. The distance between the bottom of the groove of the first baffle 31 and the groove of the conveyor belt 30 is the maximum diameter of the sample, and there is a gap between the baffle and the plane of the conveyor belt 30. This allows a single sample to pass through the corresponding groove, but if the placement posture is incorrect or the samples are stacked, they will be obstructed by the baffle.

[0032] A connecting plate 6 is provided between the other end of the conveyor belt 30 and the sorting mechanism 4. A second baffle 7 is provided on one side of the connecting plate 6. When the sample slides from the connecting plate 6 to the sorting mechanism 4, it will maintain a forward motion tendency due to the conveying inertia of the conveyor belt 30. The second baffle is set on the side where the sample moves forward due to inertia. The distance between the connecting plate 6 and the second baffle is 1 to 1.2 times the maximum diameter of the sample, specifically 1, 1.1, or 1.2 times. This allows the sample to fall smoothly from the gap to the predetermined position of the sorting mechanism 4, while limiting the sample from moving too far forward and falling outside the predetermined range. This improves the stability of the sample during the transfer process from the conveying mechanism 3 to the sorting mechanism 4, providing a reliable basis for subsequent testing and sorting.

[0033] Therefore, by setting the first baffle 31 and the second baffle 7, this application can restrict the placement position of the sample. In addition, the feeding mechanism 2 is also equipped with an air blowing device, which can improve the quality of the image captured by the detection camera and thus increase the detection accuracy of the sample, as the items to be tested may stack, shift, or roll during the conveying and vibration process.

[0034] In one embodiment, the frame 1 is further provided with a vision module 8, which includes a horizontal inspection camera 80 and a vertical inspection camera 81; there are multiple horizontal inspection cameras 80 and they are arranged in parallel on both sides of the conveyor belt 30; there are multiple vertical inspection cameras 81 and they are respectively located above the feeding mechanism 2 and the sorting mechanism 4.

[0035] Specifically, the frame 1 is also equipped with a vision module 8, including a horizontal inspection camera 80 and a vertical inspection camera 81. Multiple horizontal inspection cameras are arranged in parallel and located on both sides of the conveyor belt 30. The lenses of the horizontal inspection cameras 80 are all facing the conveyor belt 30. When the sample passes through the conveyor belt 30, the horizontal inspection cameras 80 can detect the diameter values ​​of the two ports of the sample. The horizontal inspection cameras 80 on both sides are aligned with the ports of the sample to accurately capture the edge contours of the ports. Then the information is transmitted to the processing end, and the diameter values ​​of the two ports are calculated through image recognition technology, thereby determining whether there are problems such as size deviation or deformation of the ports.

[0036] Multiple vertical inspection cameras 81 are respectively located above the feeding mechanism 2 and the sorting mechanism 4, and can also be adjusted to be below the feeding mechanism 2 and the sorting mechanism or in other directions. The vertical inspection camera 81 on the side of the feeding mechanism 2 is used to photograph the placement of the sample during feeding, specifically whether it is placed upright or upside down; the vertical camera on the side of the sorting mechanism 4 is used to photograph and inspect the appearance of the sample to see if there are any defects, such as scratches, dents or other unqualified parts.

[0037] During sample testing, when a sample enters the feeding mechanism 2, the vertical detection camera 81 on the side of the feeding mechanism 2 is activated and quickly determines whether the sample is upright or reversed by photographing its placement. This provides an initial orientation reference for subsequent testing. Essentially, the vertical detection camera 81 determines whether the sample is upright or reversed in the feeding mechanism 2. If the sample is upright, its placement direction after sliding onto the conveyor belt 30 is the first placement direction. At this time, the port with the largest diameter faces the horizontal detection camera 80 on the left side of the conveyor belt. This horizontal detection camera 80 photographs the data of the port with the largest diameter, and the processing unit compares and analyzes this data with the preset value of the port with the largest diameter. The port with the smallest diameter faces the horizontal detection camera 80 on the right side of the conveyor belt. The detection camera 80, specifically the horizontal detection camera 80 on the right, captures data from the port with the smallest diameter of the sample. The processing unit then compares and analyzes this data with a preset value for the port with the smallest diameter. If the sample is placed upside down, the placement direction after the sample slides onto the conveyor belt is the second placement direction. In this case, the port with the largest diameter faces the horizontal detection camera 80 on the right side of the conveyor belt. The horizontal detection camera 80 on the right side captures data from the port with the largest diameter of the sample, and the processing unit compares and judges this data with a preset value for the port with the largest diameter of the sample. Meanwhile, the port with the smallest diameter faces the horizontal detection camera 80 on the left side of the conveyor belt. The horizontal detection camera 80 on the left side captures and records this data, and the processing unit compares and analyzes this data with a preset value for the port with the smallest diameter of the sample.

[0038] Subsequently, the sample moves with the conveyor belt 30. The horizontal inspection camera 80 on the conveyor belt 30 aims its lens at the two ports of the sample and continuously captures the edge contours of the ports during the sample's movement. The camera compares the two ports based on their different reference values. When the sample passes through the conveyor belt 30 and enters the sorting mechanism 4, the vertical inspection camera 81 on the side of the sorting mechanism 4 takes a comprehensive picture of the sample's appearance and carefully inspects for defects such as scratches and dents. Finally, the port size data and appearance inspection results are integrated to provide a complete basis for the sample's qualification determination and sorting process.

[0039] In one embodiment, both the horizontal inspection camera 80 and the vertical inspection camera 81 are provided with an angle adjustment unit 83.

[0040] Specifically, both the horizontal inspection camera 80 and the vertical inspection camera 81 are equipped with an angle adjustment unit 83. The angle adjustment unit 83 uses a manual knob in conjunction with a positioning scale to adjust the angle. When the shooting angle is deviated or the shooting is not in place, the operator can rotate the adjustment knob on the camera bracket to move the lens up and down or left and right.

[0041] Therefore, by flexibly adjusting the camera to ensure that it is always at the optimal shooting angle, the accuracy and integrity of the test data are guaranteed, providing reliable support for the quality screening of samples. At the same time, the simple operation of manual adjustment also makes it easy for operators to quickly adapt to sample change requirements, improving the practicality and adaptability of the equipment.

[0042] In one embodiment, the horizontal inspection camera 80 and the vertical inspection camera 81 further include a ring light 84 for supplemental lighting.

[0043] Specifically, a ring light 84 is provided in front of the lens of the horizontal inspection camera 80 and the vertical inspection camera 81. The ring light 84 is coaxial with the lens and the light-emitting surface of the ring light 84 is consistent with the shooting direction of the lens. This can provide uniform and stable illumination for the horizontal inspection camera 80 and the vertical inspection camera 81 to take pictures, thereby improving the image quality and ensuring the accuracy of sample detection.

[0044] In one embodiment, the feeding mechanism 2 further includes a feeding vibratory plate 20 and a feeding channel 21; one end of the feeding channel 21 is connected to the feeding vibratory plate 20, and the other end is connected to the conveyor belt 30.

[0045] Specifically, the feeding mechanism 2 includes a feeding vibratory feeder 20 and a feeding channel 21. The feeding channel 21 is located between the feeding vibratory feeder 20 and the conveyor belt 30. One end of the feeding channel 21 is connected to the feeding vibratory feeder 20 and the other end is connected to the conveyor belt 30. The feeding vibratory feeder 20 disperses, organizes, and orients a large number of samples accumulated in the feeder through continuous vibration and conveys them to the connected feeding channel 21. The feeding channel 21 is equipped with a track for individual samples to pass through, which can reduce sample stacking. As the samples slide from the feeding channel 21 to the conveyor belt 30, they can land stably on the conveyor belt 30 without bouncing or overturning due to impact, ensuring that the samples enter the conveyor belt 30 and the subsequent testing area in a relatively regular posture.

[0046] In one embodiment, the conveyor belt 30 is provided with a plurality of guide grooves 301 adapted to the sample at intervals. The area between each two adjacent guide grooves 301 of the conveyor belt 30 is a plane. The guide grooves 301 are recessed relative to the plane of the conveyor belt 30 and the depth of the recessed grooves is greater than or equal to the maximum diameter of the sample. The first baffle 31 abuts against the plane of the conveyor belt 30.

[0047] Specifically, refer to Figure 1 and Figure 2The guide groove 301 on the conveyor belt 30 can be a V-shaped groove or an arc-shaped groove. The groove depth of the guide groove 301 is greater than or equal to the maximum diameter of the sample. Each guide groove 301 can accommodate one sample and the sample is placed horizontally in the guide groove 301. If the sample is placed incorrectly, such as tilting or partially extending beyond the guide groove 301, the first baffle that abuts against the plane will obstruct the incorrectly placed sample. Under the combined action of the continuous conveying of the conveyor belt 30 and the obstruction of the first baffle 31, the obstructed sample will slide along the surface of the baffle until it falls back into the guide groove 301 and returns to the correct horizontal posture.

[0048] Therefore, the guide groove 301 provides a space for the sample, making the sample move more smoothly on the conveyor belt 30 and less prone to vibration and displacement; at the same time, the first baffle 31 can adjust and guide the sample with deviations in placement and posture, so that the two ports of the sample can correspond more accurately with the horizontal detection camera 80, the captured images will be clearer, and the subsequent detection data will be more accurate.

[0049] In one embodiment, the sorting mechanism 4 includes a sorting disc 40, one end of the connecting plate 6 is connected to the conveyor belt 30, and the other end is located on top of the sorting disc 40.

[0050] Specifically, the connecting plate 6 is inclined, with the end connected to the conveyor belt 30 being at a high position and the end corresponding to the sorting disc 40 being at a low position. When the sample slides from the conveyor belt 30 to the top of the sorting disc 40 via the connecting plate 6, it can fall into the sorting disc 40 by gravity.

[0051] Thus, the sample falls from the conveyor belt 30 through the connecting plate 6 to the sorting disc 40. The rotation of the sorting disc 40 causes the sample to rotate, and during the rotation, the vertical camera and the processing end take pictures and inspect the appearance of the sample and make a selection.

[0052] In one embodiment, the sorting disc 40 is provided with a V-shaped groove 401 around its edge, one end of the connecting plate 6 is aligned with the opening of the V-shaped groove 401, the opening of the V-shaped groove 401 is 1.2 to 1.5 times the maximum diameter of the sample, and the depth of the V-shaped groove 401 is 1.5 to 1.8 times the minimum radius of the sample.

[0053] Specifically, one end of the connecting plate 6 is aligned with the opening of the V-groove 401, so that when the sample falls from the connecting plate 6, it can fall exactly into the V-groove 401. The opening of the V-groove 401 is 1.2 to 1.5 times the maximum diameter of the sample. That is, the width of the opening of the V-groove 401 can be 1.2, 1.4, or 1.5 times the maximum diameter of the sample, etc. The width of the opening provides sufficient space for the sample to enter, avoiding jamming due to slight sample displacement, and also preventing the sample from shaking in the groove due to excessive width, which would affect the movement of the sample and the imaging effect.

[0054] In one embodiment, the sorting mechanism 4 further includes a sorting component 41, which includes a plurality of air blowing devices and a plurality of sorting boxes 412. The sorting boxes 412 are located below the sorting disc 40, and the air blowing devices are disposed on one side of the sorting disc 40 and are used to blow samples into the corresponding sorting boxes 412.

[0055] Specifically, refer to Figure 7 The sorting mechanism 4 also includes a sorting component 41, which includes an air blowing device, referred to as the second air blowing device 411. In this embodiment, there are three second air blowing devices 411. A sorting box 412 is provided below the second air blowing device 411. The space inside the sorting box 412 is separated by two partitions to form three independent areas. The three independent areas can respectively place qualified products, unqualified products and products that need to be inspected a second time.

[0056] As the sorting disc 40 rotates within the V-shaped groove 401, the vertical inspection camera 81 on the sorting disc 40 takes pictures of the sample. The processing end analyzes data such as the appearance and radius of the sample. If the sample is determined to be qualified, a second air blowing device 411 is activated and sprays air to blow the corresponding sample away from the V-shaped groove 401. Under the action of the airflow, the sample is blown to the area in the sorting box where qualified products are placed. If the sample is determined to be unqualified, another second air blowing device 411 will blow the corresponding sample away to the area where unqualified products are placed. If the sample is determined to be a product requiring secondary inspection, it will be blown to the area where products requiring secondary inspection are placed by the remaining second air blowing device 411.

[0057] The sorting component 41 is designed to clearly classify the tested and analyzed samples, completing the screening process. Furthermore, the sorting box 412 contains multiple zones, allowing samples with different classification results to be placed in their corresponding zones, avoiding confusion in subsequent processing caused by mixing.

[0058] Specifically, the depth of the V-groove 401 is 1.5 to 1.8 times the minimum radius of the sample. That is, the groove depth can be 1.5, 1.6, 1.7 or 1.8 times the minimum radius of the sample. For cylindrical samples with different diameters, the radius of the smaller end is the minimum radius. This groove depth can ensure that the smaller end is supported, and will not be too large so that the second blowing device 411 cannot blow the sample into the sorting box 412, nor will it obscure the appearance of the sample and affect the vertical inspection camera 81 from taking pictures of the sample.

[0059] In another embodiment, the number of sorting nozzles and sorting boxes 412 can be set according to requirements.

[0060] In one embodiment, the bottom of the sorting mechanism 4 is further provided with a lifting slide, which is located on the lower side of the sorting disc 40.

[0061] Specifically, the lifting slide is located on the lower side of the sorting disc 40. By manually or automatically adjusting the height of the lifting slide, the vertical distance between the sorting disc 40 and the connecting plate 6, and between the sorting disc 40 and the sorting box 412 can be changed, making the equipment more suitable for actual needs.

[0062] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0063] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0064] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0065] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An optical screening machine for inspecting a cylindrical sample, characterized in that, The frame body is provided with a feeding mechanism, a conveying mechanism and a sorting mechanism arranged in sequence along the conveying direction of the sample to be detected; the feeding mechanism is provided on one side with a blowing device for blowing off the stacked samples; the conveying mechanism comprises a conveying belt and a first baffle, one end of the conveying belt corresponds to the discharge end of the feeding mechanism, the first baffle is arranged above the conveying belt, and the gap distance between the first baffle and the conveying belt is the maximum diameter of the sample; an adapter plate is arranged between the other end of the conveying belt and the sorting mechanism, one side of the adapter plate is provided with a second baffle, the second baffle is arranged above the sorting mechanism, and the gap distance between the second baffle and the adapter plate is 1-1.2 times the maximum diameter of the sample.

2. An optical screening machine according to claim 1, wherein The frame body is further provided with a visual module, which comprises a horizontal detection camera and a vertical detection camera; the horizontal detection camera is provided in multiple numbers and arranged in parallel on both sides of the conveying belt; the vertical detection camera is provided in multiple numbers and arranged above the feeding mechanism and the sorting mechanism respectively.

3. An optical screening machine according to claim 2, wherein, The horizontal detection camera and the vertical detection camera are both provided with an angle adjusting unit.

4. An optical screening machine according to claim 3, wherein, The horizontal detection camera and the vertical detection camera further comprise a ring-shaped light for light supplement.

5. An optical screening machine according to claim 1, wherein, The feeding mechanism further comprises a feeding vibration disc and a feeding channel; one end of the feeding channel is connected to the feeding vibration disc, and the other end is connected to the conveying belt.

6. An optical screening machine according to claim 1, wherein, A plurality of guide grooves adapted to the sample are arranged at intervals on the conveying belt, the area between every two adjacent guide grooves on the conveying belt is a plane, the guide grooves are concave relative to the plane of the conveying belt, and the groove depth formed by the concave is greater than or equal to the maximum diameter of the sample, and the first baffle abuts against the plane of the conveying belt.

7. An optical screening machine according to claim 1, wherein, The sorting mechanism comprises a sorting disc, one end of the adapter plate is connected to the conveying belt, and the other end is located at the top of the sorting disc.

8. An optical screening machine according to claim 7, wherein, The edge of the sorting disc is circumferentially provided with a V-shaped groove, one end of the adapter plate is aligned with the slot of the V-shaped groove, the slot of the V-shaped groove is 1.2 to 1.5 times the maximum diameter of the sample, and the groove depth of the V-shaped groove is 1.5 to 1.8 times the minimum radius of the sample.

9. An optical screening machine according to claim 8, wherein, The sorting mechanism further comprises a sorting assembly, the sorting assembly comprises a plurality of blowing devices and a plurality of sorting boxes, the sorting boxes are located below the sorting disc, and the blowing devices are arranged on one side of the sorting disc and used for blowing the samples into the corresponding sorting boxes.

10. An optical screening machine according to claim 8, wherein, The bottom of the sorting mechanism is further provided with a lifting sliding table, and the lifting sliding table is arranged on the lower side of the sorting disc.

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