Granularity multi-vision detection device and application thereof in potassium chloride detection

Abstract

The invention relates to the related technical field of particle size detection, in particular to a particle size multi-vision detection device and application thereof in potassium chloride detection, the particle size multi-vision detection device comprises a support and a conveying belt arranged on the support, and further comprises a plurality of material intercepting plates which are arranged in a V-like shape and fixedly arranged on the support, the heights of the multiple material intercepting plates are gradually decreased in the material conveying direction. The multiple visual detection modules are arranged above the conveying belt, the multiple visual detection modules and the multiple material intercepting plates are arranged in a staggered mode, the visual detection modules are used for shooting materials passing through the material intercepting plates and transmitting obtained material images to a computer, and the computer analyzes and evaluates the granularity of the materials; finally, the device can obtain images of different levels of the materials, the multi-vision detection function of the materials is achieved, and the comprehensiveness of material granularity detection is guaranteed.

Description

Technical Field

[0001] The 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), and the content of the main component (KCl) is between 79.14% and 99.72%, and the corresponding potassium oxide (K2O) content is between 50% and 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, the particle size detection of fertilizers helps to ensure that the physical properties of potassium chloride particles meet the standard requirements, such as crushing resistance and particle strength. This can reduce the crushing loss during transportation, storage and use, thereby improving the utilization rate and application effect of fertilizers.

[0003] Traditional detection methods usually use offline sampling and laboratory testing, which is time-consuming, labor-intensive, and has large delays, and cannot monitor changes in material particle size in real time. With the continuous development 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 an image processing system on the conveyor, image information on the material surface can be obtained in real time, and particle analysis and particle size calculation can be performed in combination with image processing algorithms.

[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 detection caused by material obstruction and unevenness, making it difficult to ensure the comprehensiveness of 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" shape, and a plurality of the material cutting plates are fixedly arranged 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 arranged above the conveyor belt, and the plurality of visual inspection modules are arranged alternately 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 track of the residual material removing mechanism is in a "V" shape 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 comprises two inclined plates fixed on the material cutting plate and two scrapers movably arranged on the two inclined plates respectively;

[0012] It also includes a driving component installed on the material cutting plate and capable of driving the two scrapers to move respectively along the length direction of the two inclined plates, and 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 on the inclined plate in the length direction, 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, an in-place rebound structure is provided between the two uprights, and the in-place 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 comprises two sleeves respectively slidably mounted on the two uprights and a follower plate fixed between the two sleeves, two lugs are respectively formed at both ends of the follower plate, the follower plate is slidably connected to two transmission rods through the lugs, and a group of elastic members are respectively provided on the two transmission rods;

[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 blade through a 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 and 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 also 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 material 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 via 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 an end of the telescopic rod away from the assembly plate, and a third spring is also 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 a plurality of cutting plates arranged along the material transmission direction above the conveyor belt, and the heights of the plurality of cutting plates gradually decrease along the material transmission direction, the material will pass through the plurality of cutting plates in sequence during the working process, and the accumulation depth of the material will be gradually reduced, avoiding the detection blind area caused by material obstruction and unevenness, and after each reduction, a corresponding visual detection module will take a picture of the material, so 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;

[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 material accumulation on the conveyor belt causing the material to spill and cause losses. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 The figure is a schematic structural diagram of an embodiment of a particle size multi-vision detection device.

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

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

[0030] Figure 4 for Figure 2 A magnified view of the structure at center.

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

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

[0033] Figure 7 It 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 schematic structural diagram from another angle of the residual material removal mechanism in one embodiment of the particle size multi-vision detection device.

[0035] Fig. 9 It is a structural explosion diagram of the residual material removal mechanism in one embodiment of the particle size multi-vision detection device.

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

[0037] Fig.11 This is a structural explosion diagram of a material breaking-up structure in one embodiment of a particle size multi-vision detection device.

[0038] In the figure: 1, support; 2, conveyor belt; 3, mounting frame; 4, visual inspection module; 5, guide hopper; 6, material transfer trough; 7, material blocking plate; 8, support frame; 9, cylinder; 10, assembly plate; 11, guide cylinder; 12, telescopic rod; 13, pressure piece; 14, material cutting plate; 15, first convex column; 16, inclined 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 through slot; 32, a third spring. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work 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 a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

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

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

[0043] Further, the principle of material analysis by the visual inspection module 4 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 material cutting plates 14 , and the movement track of the residual material removing mechanism is in a “V” shape, 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 effect 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 material cutting plates 14 arranged along the material transmission direction above the conveyor belt 2, and the heights of the multiple material cutting plates 14 gradually decrease along the material transmission direction, during the working process, the material will pass through the multiple material cutting plates 14 in sequence, and the stacking depth of the material will be gradually reduced, and after each reduction, a corresponding visual inspection module 4 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.

[0047] Please refer again Figure 4 , Figure 5 , Figure 7 as well as Figure 8 The residual material removing mechanism includes two inclined plates 16 fixed on the material cutting plate 14 and two scrapers 26 movably arranged 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 arranged 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, and 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 the stroke, the switching component is triggered to drive the scraper 26 to move downward until the bottom end of the scraper 26 is at the same height as the bottom end of the material cutting plate 14. Then, the driving component moves in the opposite direction, and the scraper 26 moves along the length direction of the inclined plate 16 toward the outer side 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 accumulation of material on the conveyor belt 2 and causing the material to spill.

[0050] In detail, a plurality of guide hoppers 5 are provided on both sides of the support 1, and 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, and the material enters the auger conveyor from the material transfer trough 6 and is transmitted to the unloading 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 Fig. 9 and Fig.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, 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, and is used to drive 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 the two ends of the follower plate 20. The follower plate 20 is slidably connected to two transmission rods 24 through the lugs 2001. A group of elastic members are provided on each of the two transmission rods 24. The upper ends of the two transmission rods 24 are fixedly connected to the second lugs 2401, and the bottom ends are fixed to the scraper 26 through the connecting arms 25. The two sleeves 19 are also fixedly connected to the first lugs 15. The first lugs 15 and the second lugs 2401 cooperate with the fixed plate 27 fixed to the inclined plate 16. The elastic member includes a first spring 21 and a second spring 22 which are mounted on the outer periphery of the transmission rod 24 and whose tail ends abut against the lugs 2001. The head ends of the first spring 21 and the second spring 22 are connected and fixed to the 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 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 convex column 2401 is located at the connection between the first slot section 2701 and the second slot section 2702, the second convex column 15 is located at one end of the inclined slot body 2705 close to the fourth slot 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 cleaning the residual material, 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. Correspondingly, the first boss 15 will move along the inclined groove body 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 the 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 will rebound, so that the transmission rod 24 drives the scraper 26 to move 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 is kept 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 materials intercepted by the material-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 the stroke, that is, the second boss 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 to lift up through the connecting arm 25, so that the bottom end of the scraper 26 is higher than the bottom end of the cutting plate 14 again, and the second boss 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, so as to avoid moving the residual material 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. In this regard, 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 investment costs, and the reliability of mechanical coordination is high.

[0059] Please refer again Figure 7 The driving assembly includes two movable blocks 30 symmetrically and slidably arranged on the material cutting plate 14 and a driving arm 31 fixedly installed on the movable blocks 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 material cutting plate 14 to move closer to or away from each other.

[0060] Specifically, the bidirectional driving structure includes a bidirectional screw 29 rotatably mounted on the cutting plate 14 and a driving motor 28 mounted on the side of the cutting plate 14, the output end of the driving 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 support plate (not numbered in the figure) is fixed on the cutting plate 14, and the two movable blocks 30 are slidably arranged on the support plate;

[0062] When the driving motor 28 drives the bidirectional screw rod 29 to rotate forward, the two movable blocks 30 simultaneously engage with the bidirectional screw rod 29 through threads and move toward each other, so that the column 18 will slide with the driving arm 31 through the bar-shaped through groove 3101, and the driving arm 31 can drive the slider 17 to move toward the middle position of the conveyor belt 2 in the guide groove 1601 through the column 18, so that the scraper 26 reaches the middle position of the conveyor belt 2, which is convenient for cleaning 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 outer side 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 in the production process of fertilizers, there may be incompletely reacted chemical components. 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. In this regard, the support 1 is also provided with a material breaking mechanism.

[0065] Please refer again Figure 1 , Figure 2 as well as Fig.11 A support frame 8 is also fixed on the support 1. The material scattering structure is arranged on the support frame 8 and is used to pressurize the material before the material passes through the multiple material cutting plates 14. It includes an assembly plate 10 slidably arranged on the support frame 8 and multiple hemispherical pressure members 13 movably arranged below the assembly plate 10. The pressure members 13 are connected to the assembly plate 10 through elastic connectors. A cylinder 9 is also installed on the side of the support frame 8. 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 arranged 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 avoid agglomeration of the material. The elastic connector realizes the flexible pressure of the pressure member 13 on the material to avoid the crushing of the material due to a large pressure.

[0067] Secondly, the present application utilizes a plurality of hemispherical pressure members 13 to improve the material agglomeration problem. During operation, the agglomerated material can be squeezed into the space formed between the adjacent plurality of pressure members 13, thereby being able to solve the agglomeration problem through the squeezing 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 particle size multi-visual detection device in potassium chloride detection is also proposed. Since there are multiple cut-off plates 14 arranged along the fertilizer transmission direction above the conveyor belt 2, and the heights of the multiple cut-off plates 14 gradually decrease along the fertilizer transmission direction, during the working process, the fertilizer will pass through the multiple cut-off 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 levels 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0070] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes 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 in that Also includes: The material cutting plates (14) are arranged in a "V" shape, and a plurality of the material cutting plates (14) are fixedly arranged 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 arranged above the conveyor belt (2), and the plurality of visual inspection modules (4) and the plurality of material cutting plates (14) are arranged in an alternating manner; A residual material removing mechanism is provided on each of the plurality of material cutting plates (14), wherein the movement track of the residual material removing mechanism is quasi-V-shaped and is used to remove the material intercepted by the material cutting plate (14) from the conveyor belt (2).

2. A particle size multi-vision detection device according to claim 1, characterized in that: The residual material removing mechanism comprises two inclined plates (16) fixed on the material cutting plate (14) and two scrapers (26) movably arranged on the two inclined plates (16); It also comprises a driving assembly mounted on the material cutting plate (14) and capable of driving the two scrapers (26) to move respectively along the length direction of the two inclined plates (16); the height of the scrapers (26) can be changed by a switching assembly arranged on the inclined plates (16).

3. A particle size multi-vision detection device according to claim 2, characterized in that: The inclined plate (16) is provided with a guide groove (1601) along the length direction, the switching assembly comprises 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.

4. A particle size multi-vision detection device according to claim 3, characterized in that: The rebound structure comprises two sleeves (19) respectively slidably mounted on the two uprights (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), the follower plate (20) is slidably connected to two transmission rods (24) via the lugs (2001), and a group of elastic members are respectively provided on the two transmission rods (24); The upper ends of the two transmission rods (24) are fixedly connected to the second protrusion (2401), and the lower ends are fixed to the scraper (26) through a 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 a fixed plate (27) fixed on the inclined plate (16).

5. A particle size multi-vision detection device according to claim 4, characterized in that: The elastic member comprises a first spring (21) and a second spring (22) which are sleeved on the outer circumference of the transmission rod (24) and whose rear 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).

6. A particle size multi-vision detection device according to claim 5, characterized in that: The fixed plate (27) is provided with an inclined groove body (2705) and a closed groove body respectively adapted to the first convex column (2401) and the second convex column (15); the first convex column (2401) and the second convex column (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.

7. A particle size multi-vision detection device according to claim 3, characterized in that: The driving assembly comprises two movable blocks (30) symmetrically slidably arranged on the material cutting plate (14) and a driving arm (31) fixedly mounted on the movable blocks (30); the driving arm (31) is provided with a strip-shaped through-slot (3101) adapted to the column (18); the column (18) passes through the strip-shaped 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 arranged on the material cutting plate (14) to move towards or away from each other.

8. 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 material cutting plates (14); The material dispersing structure comprises 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); 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); the movable end of the cylinder (9) is fixed to the assembly plate (10).

9. A particle size multi-vision detection device according to claim 8, characterized in that: The elastic connecting member comprises 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 an end of the telescopic rod (12) away from the assembly plate (10); a third spring (32) is further provided inside the guide cylinder (11); two ends of the third spring (32) are respectively connected to the inner wall of the guide cylinder (11) and the telescopic rod (12).

10. Use of the particle size multi-vision detection device according to any one of claims 1 to 9 in potassium chloride detection.

Images