A particle size multi-vision detection device and its application in potassium chloride detection

Abstract

The present invention relates to the technical field related to particle size detection, specifically a particle size multi-visual detection device and its application in potassium chloride detection, the particle size multi-visual detection device includes a support and a conveyor belt arranged on the support, and also includes: a material cutting plate, which is arranged in a "V" shape, and a plurality of the material cutting plates are fixed on the support, and the heights of the plurality of the material cutting plates gradually decrease along the material transmission direction; a plurality of visual detection modules are provided above the conveyor belt, and the plurality of the visual detection modules are staggered with the plurality of the material cutting plates, and the visual detection modules are used to shoot the material passing through the material cutting plate, and transmit the acquired material image to a computer, and the computer analyzes and evaluates the particle size of the material; finally, the device can obtain images of different layers of the material, realize the multi-visual detection function of the material, and ensure the comprehensiveness of the material particle size detection.

Description

Technical Field

[0001] The present invention relates to the technical field related to particle size detection, and in particular to a particle size multi-vision detection device and application thereof in potassium chloride detection. Background Art

[0002] Potassium chloride is a common agricultural potash fertilizer. Its main component is potassium chloride (KCl), with the main component (KCl) content ranging from 79.14% to 99.72%, and the corresponding potassium oxide (K2O) content ranging from 50% to 63%. Potassium chloride is one of the most widely used potash fertilizers in agriculture due to its high potassium content, complete water solubility, and low price. In actual production, fertilizer particle size testing helps ensure that the physical properties of potassium chloride granules, such as crushing resistance and granule strength, meet standard requirements. This can reduce breakage losses during transportation, storage, and use, thereby improving fertilizer utilization and application effectiveness.

[0003] Traditional detection methods typically rely on offline sampling and laboratory testing. This approach is time-consuming, labor-intensive, and involves significant latency, making it impossible to monitor changes in material particle size in real time. With the continuous advancement of computer vision, sensor technology, and data processing capabilities, material particle size detection technology based on image processing and analysis has gradually become a research hotspot. By installing a visual inspection module and image processing system on the conveyor, it is possible to obtain real-time image information of the material surface, and then combine it with image processing algorithms to perform particle analysis and size calculation.

[0004] Although computer vision can quickly obtain material surface information, in actual production, materials are usually piled up on conveying equipment. Therefore, there are blind spots in the detection caused by material obstruction and unevenness, making it difficult to ensure the comprehensiveness of the detection, which ultimately affects the accuracy of material particle size detection. Summary of the Invention

[0005] The object of the present invention is to provide a particle size multi-vision detection device and its application in potassium chloride detection to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A particle size multi-vision detection device comprises a support and a conveyor belt arranged on the support, and further comprises:

[0008] The material cutting plate is arranged in a V-shaped manner, and a plurality of the material cutting plates are fixed on the support, and the heights of the plurality of the material cutting plates gradually decrease along the material transmission direction;

[0009] A plurality of visual inspection modules are provided above the conveyor belt, the plurality of visual inspection modules being staggered with the plurality of material cutting plates. The visual inspection modules are used to photograph the material passing through the material cutting plates and transmit the acquired material images to a computer, which analyzes and evaluates the particle size of the material.

[0010] A residual material removing mechanism is provided on each of the plurality of material cutting plates. The movement trajectory of the residual material removing mechanism is V-shaped and is used to remove the material intercepted by the material cutting plate from the conveyor belt.

[0011] As a further solution of the present invention: the residual material removal mechanism includes two inclined plates fixed on the material cutting plate and two scrapers movably provided on the two inclined plates;

[0012] It also includes a driving component installed on the material cutting plate and capable of driving the two scrapers to move along the length directions of the two inclined plates respectively. The height of the scrapers can be changed by a switching component arranged on the inclined plate.

[0013] As a further solution of the present invention, a guide groove is provided along the length direction of the inclined plate, and the switching assembly includes a slider slidably engaged in the guide groove, two columns are fixed on the slider, and one of the columns is connected to the driving assembly;

[0014] Wherein, a rebound structure is provided between the two columns, and the rebound structure is connected to the scraper blade to drive the scraper blade to perform a lifting action.

[0015] As a further solution of the present invention, the rebound structure includes two sleeves slidably mounted on the two uprights, and a follower plate fixed between the two sleeves, two lugs being formed at each end of the follower plate, the follower plate being slidably connected to two transmission rods via the lugs, and each of the two transmission rods being provided with a set of elastic members;

[0016] Among them, the upper ends of the two transmission rods are fixedly connected with the second boss, and the bottom ends are fixed to the scraper through the connecting arm. The two sleeves are also fixedly connected with the first boss, and the first boss and the second boss cooperate with the fixed plate fixed on the inclined plate.

[0017] As a further solution of the present invention: the elastic member includes a first spring and a second spring which are sleeved on the outer circumference of the transmission rod and whose tail ends abut against the lug, and the head ends of the first spring and the second spring are connected and fixed to a ring body on the transmission rod.

[0018] As a further solution of the present invention: the fixed plate is provided with an inclined groove body and a closed groove body respectively adapted to the first boss and the second boss; the first boss and the second boss are respectively located in the inclined groove body and the closed groove body and are slidably connected to the fixed plate; and the closed groove body is arranged in a rectangular shape.

[0019] As a further solution of the present invention: the driving assembly includes two movable blocks symmetrically slidably arranged on the material cutting plate and a driving arm fixedly installed on the movable blocks, the driving arm is provided with a strip through groove adapted to the column, the column passes through the strip through groove and is slidably connected to the driving arm, and the two movable blocks can be driven by the bidirectional driving structure provided on the material cutting plate to move closer to or away from each other.

[0020] As a further solution of the present invention: a support frame is further fixed on the support, and a material scattering structure is provided on the support frame, and the material scattering structure is used to perform a pressure action on the material before the material passes through the plurality of the cutting plates;

[0021] The material breaking up structure includes an assembly plate slidably arranged on the support frame and a plurality of hemispherical pressure members movably arranged below the assembly plate. The pressure members are connected to the assembly plate through elastic connecting members. A cylinder is also installed on the side of the support frame, and the movable end of the cylinder is fixed to the assembly plate.

[0022] As a further solution of the present invention: the elastic connecting member includes a guide cylinder fixed to the bottom of the assembly plate and a telescopic rod slidably fitted with the guide cylinder, the pressure member is fixed to the end of the telescopic rod away from the assembly plate, and a third spring is further provided inside the guide cylinder, and the two ends of the third spring are respectively connected to the inner wall of the guide cylinder and the telescopic rod.

[0023] An application of the particle size multi-vision detection device in potassium chloride detection.

[0024] Compared with the prior art, the present invention has the following beneficial effects:

[0025] By setting up multiple cutting plates arranged along the material transmission direction above the conveyor belt, and the height of the multiple cutting plates gradually decreases along the material transmission direction, the material will pass through the multiple cutting plates in sequence during the working process, and the accumulation depth of the material will be gradually reduced, avoiding the detection blind spots caused by material obstruction and unevenness. After each reduction, a corresponding visual inspection module will take a picture of the material. Therefore, the device can obtain images of different layers of the material, realize the multi-visual inspection function of the material, and ensure the comprehensiveness of the material particle size detection;

[0026] Secondly, by utilizing the inclined trough body and the closed trough body, as well as the compression and rebound of the first spring and the second spring, the scraper can automatically adjust its own height when clearing the residual material, thereby realizing the function of clearing the intercepted residual material and avoiding the problem of excessive accumulation of material on the conveyor belt causing the material to spill and cause losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a structural diagram of an embodiment of a particle size multi-visual detection device.

[0028] Figure 2 This is a structural schematic diagram of another angle of an embodiment of a particle size multi-visual detection device.

[0029] Figure 3 This is a structural schematic diagram of a particle size multi-visual detection device from another angle according to an embodiment.

[0030] Figure 4 for Figure 2 A magnified view of the structure at point A in the middle.

[0031] Figure 5 This is a schematic structural diagram of a support in one embodiment of a particle size multi-vision detection device.

[0032] Figure 6 This is a structural schematic diagram of another angle of the support in one embodiment of the particle size multi-visual detection device.

[0033] Figure 7 This is a structural schematic diagram of a residual material removal mechanism in one embodiment of a particle size multi-vision detection device.

[0034] Figure 8 This is a structural schematic diagram from another angle of the residual material removal mechanism in one embodiment of the particle size multi-vision detection device.

[0035] Figure 9 This is an exploded view of the structure of the residual material removal mechanism in one embodiment of the particle size multi-vision detection device.

[0036] Figure 10 for Figure 9 Schematic diagram of the structure from another angle.

[0037] Figure 11 This is an exploded view of the material breaking up structure in one embodiment of a multi-vision particle size detection device.

[0038] In the figure: 1, support; 2, conveyor belt; 3, mounting frame; 4, visual inspection module; 5, guide hopper; 6, material trough; 7, material blocking plate; 8, support frame; 9, cylinder; 10, assembly plate; 11, guide cylinder; 12, telescopic rod; 13, pressure piece; 14, cutting plate; 15, first boss; 16, tilting plate; 1601, guide groove; 17, slider; 18, column; 19, sleeve; 20, follower plate; 2001, lug; 21, first A spring; 22. A second spring; 23. A ring body; 24. A transmission rod; 2401. A second boss; 25. A connecting arm; 26. A scraper; 27. A fixed plate; 2701. A first slot section; 2702. A second slot section; 2703. A third slot section; 2704. A fourth slot section; 2705. An inclined slot body; 28. A driving motor; 29. ​​A bidirectional screw rod; 30. A movable block; 31. A driving arm; 3101. A strip-shaped through slot; 32. A third spring. DETAILED DESCRIPTION

[0039] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In addition, when an element in the present invention is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is referred to as being "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation method.

[0041] See also Figures 1-11 In an embodiment of the present invention, a particle size multi-visual inspection device includes a support 1 and a conveyor belt 2 provided on the support 1, and also includes a material cutting plate 14, a visual inspection module 4 and a residual material removal mechanism;

[0042] Among them, the cutting plate 14 is set in a "V" shape, and a plurality of the cutting plates 14 are fixed on the support 1. The heights of the plurality of cutting plates 14 gradually decrease along the material transmission direction. The visual inspection module 4 is provided above the conveyor belt 2. The plurality of visual inspection modules 4 and the plurality of cutting plates 14 are staggered. The visual inspection module 4 is used to photograph the material passing through the cutting plate 14 and transmit the acquired material image to a computer, which analyzes and evaluates the particle size of the material. Specifically, a plurality of mounting brackets 3 are fixed on the support 1, the cutting plates 14 are fixed on the mounting brackets 3, and the visual inspection module 4 is provided on the mounting brackets 3. During specific implementation, corresponding fill lights are also provided on the mounting brackets 3 to provide a good environment for shooting the visual inspection module 4.

[0043] Furthermore, the principle of material analysis using the visual inspection module 4 shooting method in this application is mainly based on machine vision technology. The visual inspection module 4 captures the material image and analyzes the image in combination with image processing and artificial intelligence algorithms, thereby realizing the identification and particle size measurement evaluation of the material, reflecting the particle size index of the material (fertilizer), and evaluating whether its physical properties meet the standard requirements;

[0044] The residual material removing mechanism is provided with a group on each of the plurality of the material cutting plates 14 , and the movement trajectory of the residual material removing mechanism is V-shaped, and is used to remove the material intercepted by the material cutting plates 14 from the conveyor belt 2 .

[0045] Secondly, it should be specifically explained that, compared with the flat-plate setting, the plurality of the cutting plates 14 are set in a "V" shape. During the operation of the device, when the material passes through the cutting plates 14, the cutting plates 14 can limit the height of the material, so that the accumulated and uneven upper material is intercepted by the cutting plates 14, and under the action of the shape of the cutting plates 14, the material can be deflected toward the outside of the conveyor belt 2 along the inclined direction, which has a material dispersion effect and can improve the uniformity of material dispersion, ensuring that the subsequent visual inspection module 4 can obtain a flat material image. Therefore, the visual inspection module 4 can obtain a flat material surface when shooting to avoid detection blind spots caused by material obstruction and unevenness, which is convenient for the subsequent computer to perform particle size analysis and evaluation of the material based on the material image.

[0046] Secondly, since there are multiple cutting plates 14 arranged along the material transmission direction above the conveyor belt 2, and the heights of the multiple cutting plates 14 gradually decrease along the material transmission direction, during the working process, the material will pass through the multiple cutting plates 14 in turn, and the stacking depth of the material will be gradually reduced, and after each reduction, there will be a corresponding visual inspection module 4 to take pictures of the material. Therefore, the device can obtain images of different layers of the material, realize the multi-visual inspection function of the material, and ensure the comprehensiveness of the material particle size detection.

[0047] Please refer again Figure 4 、 Figure 5 、 Figure 7 as well as Figure 8 The residual material removal mechanism includes two inclined plates 16 fixed on the material cutting plate 14 and two scrapers 26 movably provided on the two inclined plates 16; it also includes a driving component installed on the material cutting plate 14 and capable of driving the two scrapers 26 to move along the length direction of the two inclined plates 16 respectively, and the height of the scraper 26 can be changed by a switching component provided on the inclined plate 16.

[0048] Specifically, as the material is conveyed, the material intercepted by the material cutting plate 14 will accumulate on the side of the material cutting plate 14 away from the material conveying direction. Then, the driving assembly moves forward, so that the scraper 26 moves along the length direction of the inclined plate 16 toward the midpoint of the inclined plate 16 (i.e., the middle of the conveyor belt 2). During this process, the bottom end of the scraper 26 is higher than the bottom end of the material cutting plate 14, thereby preventing the scraper 26 from moving the accumulated material to the middle of the conveyor belt 2.

[0049] When the scraper 26 moves to the end point of its stroke, the switching assembly is triggered to drive the scraper 26 downward until the bottom end of the scraper 26 is at the same height as the bottom end of the material cutting plate 14. Subsequently, the driving assembly moves in the opposite direction, and the scraper 26 moves along the length direction of the inclined plate 16 toward the outside of the conveyor belt 2. During this process, the scraper 26 can scrape off the material intercepted by the material cutting plate 14, thereby avoiding the problem of excessive material accumulation on the conveyor belt 2 causing the material to spill.

[0050] In detail, a plurality of guide hoppers 5 are provided on both sides of the support 1. The material scraped by the scraper 26 falls into the guide hopper 5, and then falls into the material transfer trough 6 provided on the support 1 through the guide hopper 5. In specific implementation, an auger conveyor can be provided at the tail end of the material transfer trough 6. The material enters the auger conveyor from the material transfer trough 6 and is transferred to the discharge end.

[0051] In addition, a plurality of baffle plates 7 are fixed on both sides of the support 1. The upper portion of the baffle plates 7 is higher than the upper surface of the conveyor belt 2. The baffle plates 7 are used to enclose the materials during the material transmission process to prevent the materials from rolling down during the transmission process.

[0052] Please refer again Figure 9 and Figure 10 A guide groove 1601 is provided on the inclined plate 16 along the length direction, and the switching component includes a slider 17 slidably engaged in the guide groove 1601, and two columns 18 are fixed on the slider 17, and one of the columns 18 is connected to the driving component; an in-place rebound structure is provided between the two columns 18, and the in-place rebound structure is connected to the scraper 26 for driving the scraper 26 to perform a lifting action. The rebound structure includes two sleeves 19 slidably mounted on the two uprights 18, and a follower plate 20 fixed between the two sleeves 19. Two lugs 2001 are formed at each end of the follower plate 20. The follower plate 20 is slidably connected to two transmission rods 24 via the lugs 2001. Each transmission rod 24 is provided with a set of elastic members. The upper ends of the two transmission rods 24 are fixedly connected to second lugs 2401, and their lower ends are fixed to the scraper 26 via connecting arms 25. The two sleeves 19 are also fixedly connected to first lugs 15. The first and second lugs 15 and 2401 cooperate with a fixed plate 27 fixed to the tilting plate 16. The elastic members include a first spring 21 and a second spring 22, which are mounted on the outer circumference of the transmission rods 24, with their tail ends abutting the lugs 2001. The head ends of the first and second springs 21 and 22 are connected to a ring 23 fixed to the transmission rod 24. The fixed plate 27 is provided with an inclined groove body 2705 and a closed groove body respectively adapted to the first boss 2401 and the second boss 15. The first boss 2401 and the second boss 15 are respectively located in the inclined groove body 2705 and the closed groove body and are slidably connected to the fixed plate 27, and the closed groove body is arranged in a rectangular shape.

[0053] In order to facilitate the detailed description of the movement process of the above components in the following, the closed slot body is divided into a first slot section 2701, a second slot section 2702, a third slot section 2703 and a fourth slot section 2704 which are connected;

[0054] Attach Figure 8 Taking the state shown as an example, at this time, the first protrusion 2401 is located at the connection between the first groove section 2701 and the second groove section 2702, the second protrusion 15 is located at one end of the inclined groove body 2705 close to the fourth groove section 2704, the scraper 26 is away from the middle position of the conveyor belt 2, and the bottom end of the scraper 26 is higher than the bottom end of the cutting plate 14;

[0055] When the residual material is cleaned, the driving mechanism moves forward and cooperates with the column 18, so that the column 18 drives the slider 17 to slide in the guide groove 1601 toward the middle of the conveyor belt 2. Accordingly, the first boss 15 will move along the inclined groove 2705 and slide with the fixed plate 27, so that the two sleeves 19 slide down on the two columns 18, driving the follower plate 20 to move downward. At the same time, the second boss 2401 slides in the first groove section 2701 toward the second groove section 2702, and the first spring 2 1 is compressed, and when the scraper 26 reaches the end of its stroke, that is, the second protrusion 2401 reaches the connection between the first slot section 2701 and the second slot section 2702, the first spring 21 rebounds, causing the transmission rod 24 to drive the scraper 26 downward through the connecting arm 25, and the scraper 26 is inserted into the material intercepted by the material cutting plate 14. The second protrusion 2401 reaches the connection between the second slot section 2702 and the third slot section 2703 along the second slot section 2702, and the bottom end of the scraper 26 remains flush with the bottom end of the material cutting plate 14;

[0056] Subsequently, the driving assembly moves in the reverse direction, and the column 18 drives the slider 17 to slide in the guide groove 1601 toward the outside of the conveyor belt 2. During this process, the scraper 26 can scrape the material intercepted by the cutting plate 14 toward the outside of the conveyor belt 2, and finally these materials fall into the guide hopper 5. The first protrusion 15 slides with the fixed plate 27 through the inclined groove body 2705 again, so that the two sleeves 19 drive the follower plate 20 to move upward, and the second protrusion 2401 moves along the third The groove section 2703 slides toward the fourth groove section 2704, and the second spring 22 is compressed. When the scraper 26 reaches the end of its stroke, that is, the second protrusion 2401 reaches the connection between the third groove section 2703 and the fourth groove section 2704, the second spring 22 rebounds, and the transmission rod 24 drives the scraper 26 upward through the connecting arm 25, so that the bottom end of the scraper 26 is again higher than the bottom end of the cutting plate 14. The second protrusion 2401 returns to the connection between the first groove section 2701 and the fourth groove section 2704.

[0057] In summary, by utilizing the inclined trough 2705 and the closed trough, as well as the compression and rebound of the first spring 21 and the second spring 22, the scraper 26 can automatically adjust its height when removing the residual material, thereby preventing the residual material from being pushed to the middle of the conveyor belt 2 when it moves toward the middle of the conveyor belt 2.

[0058] Of course, by arranging an electric push rod on the slider 17 and directly fixing the scraper 26 to the movable end of the electric push rod, whenever the slider 17 reaches the end point of the stroke, the electric push rod drives the height of the scraper 26. This arrangement can also achieve the above-mentioned effect. However, this driving method requires programming or sensor control between the electric push rod and the driving component. This will increase the production input cost on the one hand, and on the other hand, when a problem occurs in one of the links, the scraper 26 will fail to clear the residual material, thereby affecting the detection rhythm of the device, and as the amount of material accumulation increases, it is also easy to cause material to spill, resulting in material waste problems. To this end, the present application realizes automatic adjustment of the height of the scraper 26 through mechanical coordination, without relying on complex programming or sensor control, thereby reducing input costs, and the reliability of mechanical coordination is high.

[0059] Please refer again Figure 7 The driving assembly includes two movable blocks 30 symmetrically slidably arranged on the cutting plate 14 and a driving arm 31 fixedly mounted on the movable block 30. The driving arm 31 is provided with a strip through groove 3101 adapted to the column 18. The column 18 passes through the strip through groove 3101 and is slidably connected to the driving arm 31. The two movable blocks 30 can be driven by the bidirectional driving structure provided on the cutting plate 14 to move closer to or away from each other.

[0060] To expand on this, the bidirectional drive structure includes a bidirectional screw 29 rotatably mounted on the cutting plate 14 and a drive motor 28 mounted on the side of the cutting plate 14. The output end of the drive motor 28 is connected to the bidirectional screw 29, and the two movable blocks 30 are threadedly connected to the bidirectional screw 29.

[0061] Secondly, a supporting plate (not numbered in the figure) is fixed on the cutting plate 14, and the two movable blocks 30 are slidably arranged on the supporting plate;

[0062] When the driving motor 28 drives the bidirectional screw rod 29 to rotate in the forward direction, the two movable blocks 30 are simultaneously threadedly engaged with the bidirectional screw rod 29 and move toward each other. Then, the column 18 will slide with the driving arm 31 through the strip-shaped through slot 3101. The driving arm 31 can drive the slider 17 to move toward the middle position of the conveyor belt 2 in the guide slot 1601 through the column 18. Then, the scraper 26 reaches the middle position of the conveyor belt 2, which is convenient for removing the intercepted residual materials.

[0063] On the contrary, when the driving motor 28 drives the bidirectional screw rod 29 to rotate in the opposite direction, the two movable blocks 30 move away from each other, and the driving arm 31 drives the slider 17 to slide in the guide groove 1601 toward the outside of the conveyor belt 2 through the column 18, so that the scraper 26 can smoothly scrape the residual material from the conveyor belt 2.

[0064] It should be noted that there may be incompletely reacted chemical components in the production process of fertilizers. These components continue to react during storage and transportation to form crystal bridges, leading to agglomeration. The hygroscopicity of fertilizers, temperature changes, increased humidity, and pressure and other factors will cause the surface of fertilizer particles to dissolve, and the water will evaporate and recrystallize, thereby forming bridges and adhesions, leading to agglomeration. Agglomerated materials are not conducive to subsequent testing. For this purpose, the support 1 is also provided with a material breaking mechanism.

[0065] Please refer again Figure 1 、 Figure 2 as well as Figure 11 A support frame 8 is also fixed on the support 1. The material breaking up structure is provided on the support frame 8 and is used to apply pressure to the material before the material passes through the plurality of material cutting plates 14. The structure includes an assembly plate 10 slidably provided on the support frame 8 and a plurality of hemispherical pressure members 13 movably provided below the assembly plate 10. The pressure members 13 are connected to the assembly plate 10 via elastic connectors. A cylinder 9 is also installed on the side of the support frame 8, and the movable end of the cylinder 9 is fixed to the assembly plate 10. The elastic connector includes a guide cylinder 11 fixed to the bottom of the assembly plate 10 and a telescopic rod 12 slidably fitted with the guide cylinder 11. The pressure member 13 is fixed to the end of the telescopic rod 12 away from the assembly plate 10. A third spring 32 is also provided inside the guide cylinder 11. The two ends of the third spring 32 are respectively connected to the inner wall of the guide cylinder 11 and the telescopic rod 12.

[0066] During operation, whenever the conveyor belt 2 stops, the cylinder 9 can drive the assembly plate 10 to move downward on the support frame 8, so that the pressure member 13 can act on the material on the conveyor belt 2, and the telescopic rod 12 and the guide cylinder 11 slide relative to each other, and the third spring 32 is compressed. The pressure member 13 can apply a certain pressure to the material to break it up and prevent it from clumping. The elastic connecting member enables the pressure member 13 to apply flexible pressure to the material to prevent it from being crushed by a large pressure.

[0067] Secondly, the present application utilizes multiple hemispherical pressure members 13 to improve the problem of material agglomeration. During operation, the agglomerated material can be squeezed into the space formed between the adjacent multiple pressure members 13, thereby solving the agglomeration problem through the extrusion force, which is more effective than using a flat plate to apply pressure.

[0068] As another embodiment of the present invention, an application of the multi-visual particle size detection device in potassium chloride detection is also proposed. Since there are multiple cutting plates 14 arranged along the fertilizer transmission direction above the conveyor belt 2, and the heights of the multiple cutting plates 14 gradually decrease along the fertilizer transmission direction, during the operation, the fertilizer will pass through the multiple cutting plates 14 in sequence, and the accumulation depth of the fertilizer will be gradually reduced, and after each reduction, a corresponding visual detection module 4 will take a picture of the material. Therefore, the device can obtain images of different layers of fertilizer, realize the multi-visual detection function of fertilizer, ensure the comprehensiveness of fertilizer particle size detection, ensure the quality of fertilizer, improve fertilization effect, optimize production process, reduce loss and meet relevant standard requirements, thereby ensuring the efficiency and sustainability of agricultural production.

[0069] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0070] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. A particle size multi-vision detection device, comprising a support (1) and a conveyor belt (2) arranged on the support (1); It is characterized by: Also includes: The material cutting plate (14) is arranged in a "V" shape, and a plurality of the material cutting plates (14) are fixedly provided on the support (1), and the heights of the plurality of the material cutting plates (14) gradually decrease along the material transmission direction; A plurality of visual inspection modules (4) are provided above the conveyor belt (2), and the plurality of visual inspection modules (4) and the plurality of cutting plates (14) are arranged in an alternating manner; A residual material removal mechanism is provided on each of the plurality of material cutting plates (14), wherein the movement trajectory of the residual material removal mechanism is in a V-shape and is used to remove the material intercepted by the material cutting plate (14) from the conveyor belt (2); The residual material removal mechanism comprises two inclined plates (16) fixed on the material cutting plate (14) and two scrapers (26) movably provided on the two inclined plates (16); It also includes a driving assembly mounted on the cutting plate (14) and capable of driving the two scrapers (26) to move along the length direction of the two inclined plates (16), and the height of the scrapers (26) can be changed by a switching assembly provided on the inclined plates (16); A guide groove (1601) is provided on the tilting plate (16) along the length direction, and the switching assembly includes a slider (17) slidably engaged in the guide groove (1601), two columns (18) are fixed on the slider (17), and one of the columns (18) is connected to the driving assembly; Wherein, an in-position rebound structure is provided between the two upright posts (18), and the in-position rebound structure is connected to the scraper (26) and is used to drive the scraper (26) to perform a lifting action; The rebound structure comprises two sleeves (19) respectively slidably mounted on the two upright posts (18) and a follower plate (20) fixed between the two sleeves (19), two lugs (2001) are respectively formed at both ends of the follower plate (20), and the follower plate (20) is slidably connected to two transmission rods (24) via the lugs (2001), and each of the two transmission rods (24) is provided with a group of elastic members; The upper ends of the two transmission rods (24) are fixedly connected to the second protrusion (2401), and the bottom ends are fixed to the scraper (26) via the connecting arm (25); the two sleeves (19) are also fixedly connected to the first protrusion (15), and the first protrusion (15) and the second protrusion (2401) cooperate with the fixed plate (27) fixed on the inclined plate (16); The elastic member comprises a first spring (21) and a second spring (22) which are sleeved on the outer periphery of the transmission rod (24) and whose tail ends abut against the lug (2001); the head ends of the first spring (21) and the second spring (22) are connected and fixed to a ring body (23) on the transmission rod (24); The fixed plate (27) is provided with an inclined groove body (2705) and a closed groove body respectively adapted to the first convex column (15) and the second convex column (2401); the first convex column (15) and the second convex column (2401) are respectively located in the inclined groove body (2705) and the closed groove body and are slidably connected to the fixed plate (27); and the closed groove body is arranged in a rectangular shape.

2. A particle size multi-vision detection device according to claim 1, characterized in that: The driving assembly comprises two movable blocks (30) symmetrically slidably arranged on the cutting plate (14) and a driving arm (31) fixedly mounted on the movable blocks (30); the driving arm (31) is provided with a strip through-slot (3101) adapted to the column (18); the column (18) passes through the strip through-slot (3101) and is slidably connected to the driving arm (31); the two movable blocks (30) can be driven by a bidirectional driving structure provided on the cutting plate (14) to move toward or away from each other.

3. A particle size multi-vision detection device according to claim 1, characterized in that: A support frame (8) is also fixed on the support (1), and a material scattering structure is provided on the support frame (8), and the material scattering structure is used to perform a pressure action on the material before the material passes through the plurality of the cutting plates (14); The material dispersing structure includes an assembly plate (10) slidably arranged on the support frame (8) and a plurality of hemispherical pressure members (13) movably arranged below the assembly plate (10), wherein the pressure members (13) are connected to the assembly plate (10) via elastic connecting members. A cylinder (9) is also installed on the side of the support frame (8), and the movable end of the cylinder (9) is fixed to the assembly plate (10).

4. A particle size multi-vision detection device according to claim 3, characterized in that: The elastic connecting member includes a guide cylinder (11) fixed to the bottom of the assembly plate (10) and a telescopic rod (12) slidably fitted with the guide cylinder (11); the pressure member (13) is fixed to one end of the telescopic rod (12) away from the assembly plate (10); a third spring (32) is further provided inside the guide cylinder (11); and two ends of the third spring (32) are respectively connected to the inner wall of the guide cylinder (11) and the telescopic rod (12).

5. Use of the particle size multi-vision detection device according to any one of claims 1 to 4 in potassium chloride detection.

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