Conveying detection assembly, limiting stopper adjusting method and material sorting machine

Abstract

The invention relates to the technical field of material sorting, in particular to a conveying detection assembly, a limiting stopper adjusting method and a material sorting machine. The conveying detection assembly comprises a conveying device; the ray device is used for emitting rays to the materials on the surface of the conveying device; the detector is used for receiving rays penetrating through the material; the two limiting stoppers are arranged on the two sides of the conveying device in the width direction and used for limiting the boundary of the materials in the width direction of the conveying device; the driving device is connected with each limiting stopper, and the driving device can drive each limiting stopper to move in the width direction of the conveying device according to data collected by the detector so as to adjust the distance between the two limiting stoppers. Through the conveying detection assembly, the conveying width of the conveying device can be adjusted in real time, the material conveying amount can be effectively increased while the material recognition accuracy is guaranteed, the material recognition and sorting efficiency is improved, the conveying device can adapt to various materials of different sizes and types, and the conveying detection assembly has better adaptability and flexibility.

Description

Technical Field

[0001] The present disclosure relates to the technical field of material separation, and particularly to a conveying and detecting assembly, a limiter adjusting method, and a material separator. Background Art

[0002] Ores such as coal, spodumene, and silica are widely used in current industrial production. For the above ores, they usually contain a large amount of gangue and impurities after mining, and need to be sorted to distinguish different types of ores to improve the ore quality, reduce transportation costs, and reduce environmental pollution. Currently, equipment such as separators is used to separate ores of different classifications or different grades. A separator generally needs to use a conveyor belt as the conveying mechanism for ores, and its speed and available conveying width directly determine the processing output of the separator for ores. A separator generally uses a ray device and a detector to identify the ores on the surface of the conveyor belt. However, due to the limited range of the ray device and the detector, the characteristics of the ores to be sorted in the separator, such as size, vary greatly. For ores of different sizes, the separator has different recognizable width ranges in the width direction of the conveyor belt, which easily leads to the situation that the ores at both ends in the width direction are easily unrecognized or inaccurately recognized, or the situation of low processing output and low efficiency of the ores. As a result, the recognition accuracy of the conveying and detecting device for materials of the current separator is relatively low, and the separation efficiency is low. Summary of the Invention

[0003] To overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides a conveying and detecting assembly in a first aspect, which is applied to a material separation device and includes: a conveying device for conveying materials; a ray device disposed above the conveying device for emitting rays to the materials on the surface of the conveying device; a detector disposed below the conveying device for receiving the rays passing through the materials; two limiters disposed on both sides in the width direction of the conveying device for restricting the boundaries of the materials in the width direction of the conveying device; and a driving device connected to each limiter, and the driving device is configured to drive each limiter to move along the width direction of the conveying device to adjust the distance between the two limiters according to the data collected by the detector.

[0004] In some embodiments, the driving device includes: a motor corresponding to each limiter and located outside the limiter for driving the limiter to move along the width direction of the conveying device; a lead screw having one end connected to the limiter and the other end connected to the corresponding motor for being driven by the motor to push the limiter to move along the width direction of the conveying device.

[0005] Second aspect, the present disclosure also provides a limiter adjustment method, which is applied to the conveying and detecting assembly as described in the first aspect. The limiter adjustment method includes: determining imaging area data according to the data collected by the detector, where the imaging area data is the data collected from the imaging area for imaging to identify the type of the material; determining the imaging width of the imaging area according to the imaging area data; and adjusting the distance between the two limiters through the driving device according to the imaging width.

[0006] In some embodiments, the adjusting the distance between the two limiters through the driving device according to the imaging width includes: in response to the imaging width being greater than the available imaging width, reducing the distance between the limiters through the driving device until the imaging width is equal to the available imaging width; in response to the imaging width being less than the available imaging width, increasing the distance between the limiters through the driving device until the imaging width is equal to the available imaging width.

[0007] In some embodiments, the limiter adjustment method further includes: determining buffer area data according to the data collected by the detector, where the buffer area data is the data collected from the buffer areas on both sides of the imaging area; and adjusting the distance between the two limiters through the driving device according to the buffer area data.

[0008] In some embodiments, the adjusting the distance between the two limiters through the driving device according to the buffer area data includes: in response to the buffer area data containing information about the material, reducing the distance between the limiters through the driving device until the buffer area data does not contain information about the material.

[0009] In some embodiments, the limiter includes a first limiter located at the first end in the width direction of the conveying device and a second limiter located at the second end in the width direction of the conveying device. The buffer area data includes the data of the first buffer area located at the first end of the imaging area and the data of the second buffer area located at the second end of the imaging area. The limiter adjustment method further includes: in response to the data of the first buffer area containing information about the material, moving the first limiter towards the second end through the driving device until the data of the first buffer area does not contain information about the material; in response to the data of the second buffer area containing information about the material, moving the second limiter towards the first end through the driving device until the data of the second buffer area does not contain information about the material.

[0010] In some embodiments, the conveying and detecting assembly further includes a camera, the conveying device includes a conveyor belt, and the limiter adjusting method further includes: determining the position of the conveyor belt in the width direction according to the image captured by the camera; adjusting the positions of one or two of the limiters through the driving device according to the position of the conveyor belt in the width direction.

[0011] In some embodiments, the limiter includes a first limiter located at the first end in the width direction of the conveying device, and a second limiter located at the second end in the width direction of the conveying device. The adjusting the positions of one or two of the limiters through the driving device according to the position of the conveyor belt in the width direction includes: in response to the conveyor belt shifting towards the first end direction, adjusting the position of the second limiter through the driving device to make the second limiter close to the first limiter; in response to the conveyor belt shifting towards the second end direction, adjusting the position of the first limiter through the driving device to make the first limiter close to the second limiter.

[0012] In a third aspect, the present disclosure also provides a material sorting machine for sorting materials, including: the conveying and detecting assembly as described in the first aspect for conveying and detecting the materials; a sorting device arranged downstream of the conveying and detecting assembly for sorting the materials falling from the conveying and detecting assembly according to the detection result of the conveying and detecting assembly.

[0013] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure.

[0014] Based on the conveying and detecting assembly provided by the present disclosure, the driving device can be used to drive the limiter located on the conveying device in real time according to the information such as the size and position of the materials collected by the ray device and the detector, so as to change its position, realize the adjustment of the distance between the two limiters, and thus adjust the conveying width of the conveying device. Through the conveying and detecting assembly provided by the present disclosure, the conveying width of the conveying device can be adjusted in real time, ensuring that all material information within the conveying width of the conveying device can be collected by the ray device and the detector, thereby improving the recognition accuracy of the materials and avoiding situations such as missed recognition and misrecognition. In addition, through the conveying and detecting assembly provided by the present disclosure, by adjusting the conveying width of the conveying device in real time, the material conveying volume can be effectively increased while ensuring the material recognition accuracy, the recognition and sorting efficiency of the materials can be improved, and it can be adapted to various different sizes and types of materials for adjustment, making the conveying and detecting assembly have better adaptability and flexibility for various different working conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] By describing the exemplary embodiments of the present invention in conjunction with the drawings, the present invention can be better understood. In the drawings:

[0016] Figure 1 is a schematic structural diagram of a conveying detection component shown according to an exemplary embodiment of the disclosure;

[0017] Figure 2 is an optical path diagram of a ray device of a conveying detection component shown according to an exemplary embodiment of the disclosure;

[0018] Figure 3 is a diagram showing the positional relationship between an imaging area and a buffer area shown according to an exemplary embodiment of the disclosure;

[0019] Figure 4 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0020] Figure 5 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0021] Figure 6 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0022] Figure 7 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0023] Figure 8 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0024] Figure 9 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure;

[0025] Figure 10 is a flowchart of a limiter adjustment method shown according to another exemplary embodiment of the disclosure. Detailed implementation manners

[0026] The specific embodiments of the present invention will be described below. It should be noted that in the specific description of these embodiments, for the sake of concise description, it is impossible for this specification to describe all features of the actual embodiments in detail. It should be understood that in the actual implementation of any one of the embodiments, just as in the process of any engineering project or design project, in order to achieve the specific goals of the developer and to meet system-related or business-related restrictions, various specific decisions are often made, and these will also change from one embodiment to another. In addition, it should also be understood that although the efforts made in this development process may be complex and lengthy, for those of ordinary skill in the art related to the content disclosed in the present invention, some design, manufacturing, or production changes based on the technical content disclosed in this disclosure are only conventional technical means and should not be understood as the content of this disclosure being insufficient.

[0027] Unless otherwise defined, the technical terms or scientific terms used in the specification should have the ordinary meaning understood by those of ordinary skill in the technical field to which the present invention pertains. The "first", "second", and similar terms used in the specification of this patent application do not denote any order, quantity, or importance, but are only used to distinguish different components. The terms such as "a" or "an" do not denote a quantity limitation, but mean that there is at least one. The terms such as "comprising" or "including" mean that the elements or items appearing before "comprising" or "including" cover the elements or items listed after "comprising" or "including" and their equivalent elements, and do not exclude other elements or items. The terms such as "connected" or "coupled" are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.

[0028] Material sorting equipment generally uses a conveying device to convey materials. A ray device emits rays towards the materials on the surface of the conveying device, enabling the rays to pass through the materials and be received by a detector, thereby determining information data of the materials, such as images of the materials. In some current technologies, the ray device generally emits rays from a single target point towards the surface of the conveying device, resulting in a certain coverage range limitation for the rays emitted by the ray device. For example Figure 2As shown, since the ray device emits rays obliquely from a target point to the surface of the conveying device, its light path is restricted. For materials with smaller sizes, materials within a width of L1 can be completely collected, while for materials with larger sizes, materials within a width of L3 can be completely collected. The maximum width that the detector can detect is L2, which is the maximum available imaging width of the material. For materials with larger sizes, it is easy for them to block each other on the light path of the rays, resulting in that only the images of materials within a relatively small range can be completely collected in the width direction of the conveying device. The detector cannot collect the images of materials outside this range or cannot collect complete material images. For materials with smaller sizes, within the width direction of the conveying device, the images of materials within a larger range can be completely collected, which causes a certain waste of resources for the conveying device and related devices for identifying materials, resulting in a lower efficiency of material identification and sorting. For current material sorting equipment, it is difficult to control the position where the material falls onto the conveying device, resulting in poor accuracy and low efficiency in material identification and sorting.

[0029] To overcome the above technical problems, as Figure 1 , Figure 2 shown, an exemplary embodiment of the present disclosure provides a conveying and detecting assembly, which is applied to a material sorting device and may include: a conveying device 110, a ray device 120, a detector 130, two limiters 140, and a driving device 150.

[0030] The conveying device 110 is used for conveying materials. The conveying device 110 may be a conveyor belt, a chain conveyor, or other equipment for conveying materials. After the material enters the conveying and detecting assembly, it can fall onto the surface of the conveying device 110 and move along with the movement of the conveying device 110. One end of the conveying device 110 may be located below the feeder for receiving the materials fed by the feeder. The other end of the conveying device 110 may be provided with a sorting device so that the materials can be conveyed through the conveying device 110. The materials conveyed by the conveying device 110 may be ores to be detected.

[0031] The ray device 120 is arranged above the conveying device 110 and is used for emitting rays to the materials on the surface of the conveying device 110. The ray device 120 may emit X-rays. The ray device 120 may be arranged above the conveying device 110 so that the ray device 120 emits rays to the materials on the surface of the conveying device 110 through its target point. The rays can pass through the materials. Due to the material, size and other characteristics of the materials, the intensity of the rays passing through the materials can be changed. Therefore, the detector 130 can receive the rays passing through the materials to determine the images of the materials.

[0032] The detector 130 is arranged below the conveying device 110 and is used to receive the rays passing through the material. The detector 130 can be arranged below the conveying device 110 so that the rays emitted by the ray device 120 above the conveying device 110 can be received by the detector 130 below the conveying device 110 after passing through the material on the conveying device 110. Thus, the image of the material can be determined through the rays received by the detector 130. The image can include information such as the size and material of the material.

[0033] Two limiters 140 are arranged on both sides in the width direction of the conveying device 110 and are used to limit the boundaries of the material in the width direction of the conveying device 110. Limiters 140 can be respectively arranged on both sides in the width direction of the conveying device 110. The limiters 140 can block the material and can be arranged at both ends in the width direction of the conveying device 110 to prevent the material from falling onto the conveying device 110 from the outside of the limiters 140. Specifically, the two limiters 140 can be two side edges respectively arranged at both ends in the width direction of the conveying device 110. The limiters 140 can also be arranged on both sides in the width direction of the conveying device 110 according to the conveying requirements of the material, so that the material is always located between the two limiters 140 during the conveying process, enabling the limiters 140 to effectively limit the boundaries of the material in the width direction of the conveying device 110. The distance between the limiters 140 is the conveying width of the material on the conveying device 110. The larger the conveying width, the more materials can be conveyed in the same period, making the conveying efficiency of the material higher, thereby further improving the sorting efficiency of the material sorting equipment. In some cases, such as when the material size is large, it is easy to block the ray path, or due to the large size, the receiver cannot detect the information of the material. In this case, it is necessary to reduce the conveying width to ensure that all materials can be identified, avoiding incorrect identification and missed identification. Therefore, the distance between the limiters 140 can be adjusted in real time, thereby changing the conveying width of the conveying device 110, improving the adaptability of the conveying device 110 for conveying various different materials, ensuring the detection accuracy of the material, and effectively increasing the material conveying volume, further improving the conveying efficiency and sorting efficiency of the material.

[0034] The driving device 150 is connected to each stopper 140, and the driving device 150 is configured to drive each stopper 140 to move in the width direction of the conveying device 110 according to the data collected by the detector 130 so as to adjust the distance between the two stoppers 140. One or two driving devices 150 may be provided. When there is one driving device 150 in the conveying detection assembly, the driving device 150 can be respectively connected to the two stoppers 140, so that one driving device 150 drives the two stoppers 140 to move synchronously, thereby adjusting the distance between the stoppers 140. When there are two driving devices 150 in the conveying detection assembly, the driving devices 150 can be connected to the stoppers 140 in a one-to-one correspondence, so that each driving device 150 drives a corresponding stopper 140 to move. Thus, the position of only one side of the stopper 140 can be adjusted according to the situation, or the positions of the stoppers 140 on both sides can be adjusted simultaneously, and in both cases, the distance between the stoppers 140 on both sides can be adjusted. The driving device 150 can drive the stopper 140 to move in the width direction of the conveying device 110 according to the data collected by the detector 130.

[0035] Specifically, when the material information collected by the detector 130 is concentrated in the center of the image, and within the range that the detector 130 can recognize, there is no material at both ends in the width direction of the conveying device 110, the two stoppers 140 can be moved outward by the driving device 150, thereby increasing the distance between the stoppers 140 and increasing the available conveying width of the conveying device 110. Thus, in the subsequent material conveying process, more materials can be conveyed by the conveying device 110 at the same time, so that there is also material at both ends in the width direction of the conveying device 110 within the range that the detector 130 can recognize, enabling the detector 130 to obtain more material information for recognition. Thereby, the efficiency of material conveying can be improved, and at the same time, the efficiency of material sorting can be further improved.

[0036] However, within the range that the detector 130 can recognize, there is material at both ends in the width direction of the conveying device 110, but the material information collected by the detector 130 is incomplete. It can be determined that the size of the material is relatively large and exceeds the range that the detector 130 can detect. Therefore, the two stoppers 140 can be moved inward by the driving device 150, thereby reducing the distance between the stoppers 140 and reducing the available conveying width of the conveying device 110. Thus, in the subsequent material conveying process, the detector 130 can recognize the complete information of all the materials conveyed on the conveying device 110, avoiding the situation of misidentifying and failing to identify the materials, thereby improving the accuracy of material identification.

[0037] Specifically, the width of the conveying device 110 is the maximum conveying width. According to the specifications of the material sorting equipment and the types and size specifications of the materials to be sorted, the width of the conveying device 110 can be determined. The width of the conveying device 110 can be greater than or equal to 1 m and less than or equal to 2.2 m. The width that the detector 130 of the material can detect can be greater than the width of the conveying device 110. The width that the detector 130 can detect can be greater than or equal to 1.2 m and less than or equal to 2.4 m. In addition, the ray device 120 emits rays from a target point to the material, and the maximum angle of the emitted rays can be greater than or equal to 70 degrees and less than or equal to 75 degrees, so as to ensure that the error of the ray signal received by the detector 130 after the rays pass through the material is small, effectively reducing the detection error of the detector 130.

[0038] According to the conveying and detecting assembly provided in this embodiment, through the real-time adjustable limiter 140, it can be ensured that all materials completely enter the field of view of the detector 130, improving the accuracy of ray detection for material detection. When the detector 130 determines that the materials are concentrated in the center of the image, the limiter 140 can automatically expand outwards to increase the conveying width and improve the conveying volume per unit time. When the materials are large or there are missing information at the edges, the limiter 140 contracts inwards to ensure that the large-sized materials are completely within the recognition range of the detector 130, effectively avoiding the risks of misrecognition and missed recognition. By setting two adjustable limiters 140 and the driving device 150 linked thereto, combined with the material information collected by the detector 130 in real time, the conveying width of the conveying device 110 can be dynamically adjusted, thereby overcoming the technical problems such as poor adaptability and low recognition rate of the traditional fixed-width conveying structure when facing materials with different sizes and distribution characteristics. Through this embodiment, while ensuring that the detector 130 obtains complete and effective image information, the number of materials conveyed each time can be maximized, significantly improving the accuracy and sorting efficiency of material detection. It has good adaptability to materials of different sizes, making the conveying and detecting assembly more flexible.

[0039] In some embodiments, as Figure 1 shown, the driving device 150 can include: a motor 151 and a lead screw 152.

[0040] The motor 151 is correspondingly arranged for each stopper 140 and is located outside the stopper 140, and is used to drive the stopper 140 to move in the width direction of the conveying device 110. A motor 151 can be respectively arranged for each stopper 140 so that the motor 151 corresponds to the stopper 140 one by one. The motor 151 can drive the stopper 140 to move in the width direction of the conveying device 110. Since the stopper 140 is arranged on both sides in the width direction of the conveying device 110. When the motor 151 drives the stopper 140 to move inward, that is, to move in the direction close to another stopper 140, the distance between the stoppers 140 can be shortened, thereby reducing the conveying width of the conveying device 110. When the motor 151 drives the stopper 140 to move outward, that is, to move in the direction away from another stopper 140, the distance between the stoppers 140 can be increased, thereby increasing the conveying width of the conveying device 110. Each stopper 140 can be driven by an independent motor 151, so that the free adjustment of the unilateral stopper 140 can be realized. At the same time, the two motors 151 can also drive the two stoppers 140 to move synchronously, so as to synchronously adjust the two stoppers 140 and change the conveying width of the conveying device 110.

[0041] One end of the lead screw 152 is connected to the stopper 140, and the other end is connected to the corresponding motor 151. The lead screw 152 is used to be driven by the motor 151 to push the stopper 140 to move in the width direction of the conveying device 110. The corresponding stopper 140 and the motor 151 can be connected through the lead screw 152. One end of the lead screw 152 can be connected to the stopper 140, and the other end can be connected to the corresponding motor 151. The lead screw 152 can be arranged in the width direction of the conveying device 110. When the motor 151 operates to adjust the position of the stopper 140, the lead screw 152 can rotate under the drive of the motor 151, so that the stopper 140 connected to it can move inward or outward in the width direction of the conveying device 110, realizing the adjustment of the position of the stopper 140. By connecting the motor 151 and the stopper 140 through the lead screw 152, the transmission is realized, and the position of the stopper 140 can be controlled more accurately, so that the position adjustment of the stopper 140 has higher adjustment accuracy. In addition, the transmission of the lead screw 152 has higher reliability, and the service life of the lead screw 152 is long, the cost is low, and it has higher cost performance, and it can also make the drive device 150 have higher reliability.

[0042] According to the conveying and detecting assembly provided by this embodiment, through the driving device 150 composed of the motor 151 and the lead screw 152, the adjustment precision, flexibility of the position limiter 140 and the overall reliability of the conveying and detecting assembly are further improved. By setting the lead screw 152 as the transmission element, its structure is stable and has high adjustment precision, which improves the stability and precision of the position adjustment of the position limiter 140, ensures that the material is always located in the imaging area, and improves the stability and accuracy of material identification and sorting. By independently controlling the corresponding position limiter 140 with each motor 151, the adjustment of the unilateral position limiter 140 can be realized, and the synchronous adjustment of the bilateral position limiters 140 can also be realized, enhancing the adaptability to different material sizes and material distribution states, and making the conveying and detecting assembly have high flexibility.

[0043] Based on the same inventive concept, as Figure 4 shown, the present disclosure also provides a method for adjusting a position limiter, which is applied to the conveying and detecting assembly in any of the foregoing embodiments. The method for adjusting the position limiter may include: step S210 to step S230.

[0044] Step S210, determining imaging area data according to the data collected by the detector, where the imaging area data is the data collected from the imaging area for imaging to identify the type of the material by the detector. The detector can receive the rays emitted by the ray device towards the material. After passing through the material, the rays can enter the detector. Since the intensity of the rays changes after passing through different types of materials, the detector can determine information such as the shape and type of the material according to the received rays. The ray device can emit rays from a single target point towards the material, and the irradiation range of the rays is limited, so that among the data collected by the detector, the data detected in the width direction of the conveying device is limited. Therefore, the imaging area data of the detector can be determined according to the data collected by the detector. Among them, the detector can determine the image of the material according to the data it detects, and can perform detection according to the obtained image to further determine characteristic information such as the type and position of the material. The detector acquisition area corresponding to the image is the imaging area, and the imaging area data is the data collected by the detector for imaging. Since the ray emission angle is large and there is an error in the detector receiving the ray signal, the image determined according to the data of the materials at both ends in the width direction detected by the detector may be distorted or have a certain error. Therefore, this part of the data can be omitted in the subsequent material identification process. Therefore, this part of the data is different from the imaging area data and can be not used for the subsequent identification and analysis of the material, while the imaging area data can be used for the subsequent identification and analysis of the material, with small error and high accuracy.

[0045] Step S220: Determine the imaging width of the imaging area according to the imaging area data. According to the imaging area data, the image of the corresponding material can be determined. The image can be the image of the imaging area corresponding to the detector, and the image may include multiple materials irradiated by the rays. According to the imaging area data, the imaging width corresponding to the imaging area can be determined. The imaging width is the width of the detection area corresponding to the image determined according to the imaging area data received by the detector.

[0046] Step S230: Adjust the distance between the two limiters through the driving device according to the imaging width. According to the imaging width, the distance between the two limiters can be adjusted. Specifically, when the imaging width is small, it indicates that the actual width of the material on the conveying device is small, that is, the conveying width of the conveying device is small, and the detector can still detect more material information. Therefore, the two limiters can be adjusted through the driving device, so that any one side limiter moves outward, or the two side limiters move outward synchronously, increasing the distance between the limiters, thereby increasing the conveying width and enabling more materials to be recognized. When the imaging width is large, it indicates that the actual width of the material on the conveying device is large, that is, the conveying width of the conveying device is large, and the detector may not be able to detect all the scattered materials on the conveying device completely. Therefore, the two limiters can be adjusted through the driving device, so that any one side limiter moves inward, or the two side limiters move inward synchronously, reducing the distance between the limiters, thereby reducing the conveying width and reducing the materials conveyed by the conveying device to ensure that the detector can completely obtain the complete data of all the materials on the conveying device, so as to improve the accuracy of material recognition and sorting.

[0047] According to the limiter adjustment method provided in this embodiment, the intelligent dynamic adjustment of the limiter position can be realized to adapt to materials of different sizes and distribution states, and further improve the image recognition accuracy and material sorting efficiency. By identifying the image through the ray imaging area data obtained by the detector, the problem of image distortion caused by the angle or detector reception deviation in the ray edge area can be effectively avoided, enabling the detector to analyze based on the imaging area data with small errors and high stability, significantly improving the accuracy of the feature information such as the material contour, type, and size determined by the detector, thereby improving the accuracy of subsequent material recognition and sorting. Through this embodiment, the current material distribution situation can be automatically judged according to the actual imaging width corresponding to the imaging area, and the position of the limiter can be adjusted in a timely manner, with good real-time performance, and at the same time, the accuracy of recognition and sorting can be improved. Through the limiter adjustment method provided in this embodiment, the precise adjustment of the limiter position can be realized, which can be widely applied to ores or other materials with large size differences and uneven distribution densities, effectively improving the adaptability of the sorting equipment, while reducing the recognition error rate, thereby greatly improving the efficiency of material recognition and sorting while ensuring the recognition accuracy.

[0048] In some embodiments, as Figure 5 shown, step S230, according to the imaging width, adjusting the distance between the two limiters through the driving device may include: step S231 and step S232.

[0049] Step S231, in response to the imaging width being greater than the available imaging width, reducing the distance between the limiters through the driving device until the imaging width is equal to the available imaging width. After the detector receives the ray signal, relevant data of the material can be collected, and an image can be determined based on these data. The width of the detection range of the detector corresponding to the determined image is the imaging width. The available imaging width can be the width of the maximum detection range of the detector. The detector can accurately obtain the material information within its maximum detection range, and the material information received within the maximum detection range of the detector has high accuracy and can be used for subsequent material identification and detection with high identification accuracy. For materials outside the maximum detection range, the detector can also receive their information to a certain extent, but the accuracy of this part of the information is relatively low and cannot be used in the subsequent material identification and detection process. Due to the limitation of the conveying width of the conveying device, the imaging width of the material may be greater than the available imaging width, may be less than the available imaging width, or may be equal to the imaging width. As Figure 2 shown, in the figure, L3 is the available imaging width corresponding to the detector. The available imaging width is a fixed value, and the size of the available imaging width can be determined by attributes such as the ray emission angle of the ray device and the detection range of the detector. The available imaging width of the detector can be greater than the width of the conveying device, so as to ensure that all materials in the conveying device can be irradiated by the rays, and the detector can receive the corresponding rays, thereby obtaining more complete material information.

[0050] According to step S321, the imaging width determined based on the imaging area data of the detector may be greater than the available imaging width. In this case, it can be considered that among the data received by the detector, the positions of some materials exceed the maximum detection range of the detector, and the accuracy of the data corresponding to this part of the materials is relatively poor and cannot be applied to the subsequent material identification and detection process, resulting in relatively poor identification and sorting accuracy for this part of the materials. Therefore, to ensure the accurate identification of subsequent materials, the driving device can be used to drive one side limiter to move inward along the width direction of the conveying device, or drive both side limiters to move inward simultaneously, so as to reduce the conveying width of the materials. Correspondingly, the imaging width of the imaging area can be reduced accordingly. When the imaging width is reduced to be equal to the available imaging width, it can be ensured that the data of the materials detected by the detector can all be within its imaging area, thereby ensuring high accuracy in the subsequent identification and sorting process.

[0051] Step S232: In response to the imaging width being less than the available imaging width, increase the distance between the limiters through the driving device until the imaging width is equal to the available imaging width. The imaging width determined according to the imaging area data of the detector may be less than the available imaging width. In this case, it can be considered that all the positions of the materials in the data received by the detector are within the maximum detection range of the detector. However, in this case, there is still a certain range on one side or both sides of the maximum detection range in the width direction where there are no materials, that is, the conveying width of the conveying device is small and the amount of materials is small. This shows that there is a certain waste of resources in the conveying detection component. The conveying width can be increased so that the conveying device can convey more materials. Through the ray device and the detector, more material data can be obtained, and the identification and sorting of more materials can be achieved at the same time. Therefore, the driving device can be used to drive one side limiter to move outward in the width direction of the conveying device, or drive both side limiters to move outward at the same time, so as to increase the conveying width of the materials. Correspondingly, the imaging width of the imaging area can be increased accordingly. When the imaging width increases to be equal to the available imaging width, it can be ensured that the maximum number of materials can be within the imaging area of the detector, so that more materials can be identified and sorted in the same time later, and the efficiency of material identification and sorting can be improved.

[0052] According to the limiter adjustment method provided in this embodiment, when the imaging width of the detector is greater than its available imaging width, the distance between the limiters can be actively reduced through step S231, so that the materials on the conveying device are concentrated within the imaging range, thereby improving the overall quality of the information and images of the collected materials, enhancing the stability of material identification and sorting, and ensuring the sorting accuracy. When the imaging width is less than the available imaging width, the distance between the limiters can be automatically expanded through step S232, so that more materials enter the imaging area of the detector, thereby improving the resource utilization rate of the detector, increasing the number of identified and sorted materials per unit time, and enhancing the efficiency of material identification and sorting. This embodiment can realize precise adjustment of the width of the conveying device by real-time comparison and feedback of the imaging width and the available imaging width, and combine the driving device to adjust the position of the limiter, while improving the accuracy and efficiency of material identification and sorting.

[0053] In some embodiments, as Figure 6 shown, the limiter adjustment method may further include: step S240 and step S250. Among them, step S240 and step S250 can be executed synchronously with step S210, or asynchronously with steps S210 to S230.

[0054] Step S240: Determine the buffer area data according to the data collected by the detector, where the buffer area data is the data collected from the buffer areas on both sides of the imaging area. For example, the buffer areas can be the areas on both sides of the imaging area. For the materials in the buffer areas, the detector can collect their information, but the accuracy of the data is poor, and data omission or large errors may occur. For example Figure 3 As shown, there are buffer areas on both sides of the imaging area. The width of the imaging area is L3, and the width of the buffer area is L4. The data detected in the buffer areas is the buffer area data. Since the accuracy of the buffer area data is poor, if it is applied to the subsequent material identification and detection process, it is easy to lead to low accuracy in material identification and detection, affecting the accuracy of material sorting. Therefore, this part of the data cannot be directly used for material identification and detection. According to step S240, the buffer area data different from the imaging area data can be extracted from the data collected by the detector.

[0055] Step S250: Adjust the distance between the two limiters according to the buffer area data. Since the conveying and detecting assembly cannot accurately identify the materials in the buffer areas, the distance between the two limiters can be changed by driving one side of the limiter to move or both sides to move simultaneously according to the buffer area data through the driving device, so that the conveying width changes. After adjusting the distance between the two limiters through the driving device, it is ensured that all the materials conveyed by the conveying device can be within the imaging area, so that the data of all the materials on the conveying device can be obtained by the detector, thereby improving the accuracy of the obtained materials and further making the material detection and sorting process more accurate.

[0056] According to the limiter adjustment method provided in this embodiment, by determining the buffer area data and according to the material data in the buffer areas, the position of the limiter can be adjusted in time, so that the materials enter the imaging area from the buffer areas, effectively preventing the identification errors caused by blurred imaging or data loss of the materials, thereby enhancing the stability and accuracy of the material identification process. By monitoring the buffer area data and changing the position of the limiter according to the buffer area data, it can effectively prevent the materials from being outside the edge of the imaging area, avoid the situation of unable to identify the materials or the phenomenon of incorrect identification and sorting caused by the lack of material information, and ensure that all the materials can fall within the imaging range, improving the reliability and accuracy of material identification and sorting.

[0057] In some embodiments, such as Figure 7As shown, in step S250, according to the buffer zone data, adjusting the distance between the two limiters through the driving device may include: step S251, in response to the buffer zone data containing information about the material, reducing the distance between the limiters through the driving device until the buffer zone data no longer contains information about the material. Since the accuracy of the buffer zone data is relatively poor and it cannot be directly used for material identification and sorting, it is possible to determine whether the buffer zone data contains information about the material based on the buffer zone data. When there is no information about the material in the buffer zone data, it can be determined that all the materials are located within the imaging area and no adjustment is required. When there is information about the material in the buffer zone data, it can be determined that there is material in the buffer zone, which exceeds the maximum detection range of the detector, resulting in the detector being unable to accurately detect the data of this part of the material. Therefore, the driving device can be used to drive one side of the limiter to move inward in the width direction of the conveying device, or drive both sides of the limiter to move inward simultaneously, so as to reduce the conveying width of the material. Correspondingly, the imaging width of the imaging area can be reduced accordingly until there is no information about the material in the buffer zone data, and it can be determined that all the materials are located within the imaging area, ensuring that all the information of the materials conveyed by the conveying device can be accurately detected by the detector, effectively improving the accuracy of material identification and sorting during the process of material identification and sorting.

[0058] According to the limiter adjustment method provided in this embodiment, by judging whether the buffer zone data contains information about the material, it is possible to dynamically identify whether the material exceeds the imaging area range. When there is material in the buffer zone, it can be considered that this part of the material is in the area with a large detector error, and the accuracy of its identification data is relatively low. Therefore, the position of the limiter can be adjusted accordingly until the buffer zone data no longer contains information about the material, ensuring that all the materials are within the imaging area of the detector, effectively guaranteeing the integrity and quality of the material data determined by the detector, and ensuring higher accuracy during the process of material identification detection and sorting processing.

[0059] In some embodiments, the limiter may include a first limiter located at the first end in the width direction of the conveying device and a second limiter located at the second end in the width direction of the conveying device. The buffer zone data may include the data of the first buffer zone located at the first end of the imaging area and the data of the second buffer zone located at the second end of the imaging area, such as Figure 8The described limiter adjustment method may further include: steps S260 to S270. Since the conveying detection component includes two limiters, which are respectively arranged at both ends in the width direction of the conveying device. Among them, the limiter at the first end in the width direction of the conveying device is the first limiter, and the limiter at the second end in the width direction of the conveying device is the second limiter. The distance between the first limiter and the second limiter is the conveying width of the conveying device. The buffer area data may include the data of the first buffer area at the first end of the imaging area and the data of the second buffer area at the second end of the imaging area. Since the image determined according to the imaging area data is the image of the imaging area, and the direction in the image corresponds to the conveying device, there is a corresponding relationship between the imaging area and the conveying device. Since the buffer area is located on both sides of the imaging area, it can be determined that the buffer area may include the first buffer area at the first end of the imaging area and the second buffer area at the second end of the imaging area.

[0060] Step S260, in response to the information of the material being included in the data of the first buffer area, move the first limiter in the direction closer to the second end through the driving device until the information of the material is not included in the data of the first buffer area. When the information of the material is included in the data of the first buffer area and the first buffer area is at the first end of the imaging area, it can be determined that the data of the first buffer area includes the information of part of the material inside the first limiter at the first end in the width direction of the conveying device. However, the information of the part of the material inside the first limiter in the data of the first buffer area cannot be accurately acquired and identified. Therefore, the position of the first limiter can be adjusted so that this part of the material can be located within the imaging area and the information of this part of the material can be accurately acquired and identified. In this case, the first limiter can be moved in the direction closer to the second end through the driving device, that is, the first limiter is moved inward, so that the conveying width of the conveying device is reduced. When moving the first limiter in the direction closer to the second end, the data of the first buffer area can be continuously monitored. When the information of the material is not included in the data of the first buffer area, it can be determined that the first limiter has been moved to an appropriate position, and the movement of the first limiter can be stopped. After the movement is completed, all the materials inside the first limiter are located within the imaging area, and the information of the materials can be accurately acquired by the detector, so that in the subsequent identification and sorting process, the materials can be more accurately identified and sorted, improving the accuracy of material identification and sorting.

[0061] Step S270: In response to the information of the material being included in the data of the second buffer area, the second stopper is moved by the driving device in the direction close to the first end until the information of the material is not included in the data of the second buffer area. When the information of the material is included in the data of the second buffer area and the second buffer area is located at the second end of the imaging area, it can be determined that the data of the second buffer area includes the information of some materials inside the second stopper at the second end in the width direction of the conveying device. However, the information of some materials inside the second stopper in the data of the second buffer area cannot be accurately obtained and recognized. Therefore, the position of the second stopper can be adjusted so that this part of the material can be located within the imaging area, and the information of this part of the material can be accurately obtained and recognized. In this case, the second stopper can be moved by the driving device in the direction close to the first end, that is, the second stopper is moved inward, so as to reduce the conveying width of the conveying device. When moving the second stopper in the direction close to the first end, the data of the second buffer area can be continuously monitored. When the information of the material is not included in the data of the second buffer area, it can be determined that the second stopper has been moved to an appropriate position, and the movement of the second stopper can be stopped. After the movement is completed, all the materials inside the second stopper are located within the imaging area, and the information of the materials can be accurately obtained by the detector. Thus, in the subsequent identification and sorting process, the materials can be more accurately identified and sorted, improving the accuracy of material identification and sorting.

[0062] According to the stopper adjustment method provided in this embodiment, by dividing the buffer area data into the first buffer area data and the second buffer area data, which respectively correspond to the two end areas in the width direction of the conveying device, the system can independently judge the buffer areas at the left and right ends of the imaging area. When it is detected that the information of the material is included in any buffer area, the specific direction where the material exceeding the effective imaging area is located can be timely located, so as to realize the adjustment of the corresponding side stopper, achieving the independent, precise and intelligent adjustment of the two stoppers, ensuring that the material is within the imaging area, improving the material identification accuracy, and further improving the subsequent material sorting accuracy.

[0063] In some embodiments, such as Figure 9As shown, the conveying detection component further includes a camera, the conveying device includes a conveyor belt, and the limiter adjustment method further includes: step S280 and step S290. The conveying device may include a conveyor belt, and the material may be on the conveyor. The conveying detection component may further include a camera, and the camera may be disposed above the conveying device so as to be able to capture an image of the material conveyed by the conveying device. The camera may be an industrial color sorting camera such as a CCD (charge coupled device), and the image captured by it may be a color sorting image, and the color sorting image may include information such as the color and shape of the material. In addition, the conveyor belt is also included in the image captured by the camera, so the position of the conveyor belt can also be determined from the image captured by the camera.

[0064] Step S280, determine the position of the conveyor belt in the width direction according to the image captured by the camera. An image of the conveyor belt and the material conveyed by the conveyor belt can be captured by a camera disposed above the conveyor belt. The maximum width that the camera can capture may be greater than the width of the conveyor belt, so that while the camera can capture the conveyor belt, at least one side of the image captured by it in the width direction of the conveyor belt also includes the background, so that the user can determine the position of the conveyor belt in the width direction according to the positions of the conveyor belt and the background in the image captured by the camera. Specifically, in the image captured by the camera, the conveyor belt may be located in the center of the image. In the image, there is part of the background on both sides in the width direction of the conveyor belt, and the sizes of the background parts on both sides of the conveyor belt in its width direction in the image may be the same. The position of the conveyor belt in the width direction can be determined based on this. When the conveyor belt in the image shifts to any one side, it can be determined that the position of the conveyor belt in the width direction has changed. Therefore, based on the above criterion and combined with the current image of the conveyor belt captured, the actual position of the current conveyor belt in the width direction can be determined.

[0065] Step S290: Adjust the position of one or two limiters through the driving device according to the position of the conveyor belt in the width direction. According to the position of the conveyor belt in the width direction, information such as whether the conveyor belt is offset, the direction and distance of the offset can be determined. Specifically, when the conveyor belt is offset towards the first end in its width direction, in the image, the area of the background part outside the first end of the conveyor belt in the width direction is smaller than the area of the background part outside the second end of the conveyor belt. Thus, it can be determined that the conveyor belt is offset towards the first end side. Therefore, according to the position of the conveyor belt in the width direction, the direction and distance of its offset can be determined. When the conveyor belt is offset in the width direction, it will cause the materials on the conveyor belt to be offset to the same side as the conveyor belt, resulting in the detector being unable to accurately obtain and identify the data of the materials. Therefore, according to the position of the conveyor belt in the width direction, one limiter or two limiters can be adjusted through the driving device, so that the position of the materials on the conveyor belt changes with the restriction of the limiters, enabling the materials to fall into the imaging area of the detector to ensure the accurate identification and sorting of the materials.

[0066] According to the limiter adjustment method provided in this embodiment, by setting a camera above the conveyor belt and making its shooting coverage greater than the width of the conveyor belt, the conveyor belt and background information can be obtained simultaneously in the image. Based on the distribution position of the conveyor belt relative to the background in the image, it can be accurately determined whether the conveyor belt is offset in the width direction, realizing the real-time identification of the offset state of the conveyor belt. When it is detected that the conveyor belt is offset, the corresponding adjustment of one or both sides of the limiter can be driven according to the relative position change between the conveyor belt and the background in the image, so that the materials on the conveyor belt are still kept within the range of the detector imaging area under the guidance of the limiters, ensuring that the materials are always in a position where they can be accurately imaged and identified. Thus, it can effectively avoid the misidentification and missed identification situations caused by the position offset of the materials due to the offset of the conveyor belt, adaptively adjust the position of the limiter, and improve the recognition accuracy and reliability of the materials.

[0067] In some embodiments, the limiter includes a first limiter located at the first end in the width direction of the conveying device, and a second limiter located at the second end in the width direction of the conveying device. As Figure 10 shown, step S290: Adjust the position of one or two limiters through the driving device according to the position of the conveyor belt in the width direction may include: step S291 and step S292.

[0068] Step S291, in response to the conveyor belt shifting towards the first end, adjust the position of the second limiter through the driving device so that the second limiter approaches the first limiter. According to the position of the conveyor belt in the width direction, the shift of the conveyor belt can be determined. In the image, the area of the background part outside the first end of the conveyor belt in the width direction may be smaller than the area of the background part outside the second end of the conveyor belt, from which it can be determined that the conveyor belt shifts towards the first end side. When the conveyor belt shifts towards the first end in its width direction, the materials also shift towards the first end along with the conveyor belt. Therefore, when the detector acquires information about these materials, due to the shift of the material positions along with the conveyor belt, it may cause the detector to fail to detect data of some materials, or some materials may fall into the buffer area due to the shift of the materials, resulting in the detector being unable to accurately acquire data of some materials. To ensure accurate identification and sorting of the materials, the position of the second limiter can be adjusted through the driving device to move the second limiter inwards and approach the first limiter, so that all the materials inside the second limiter can fall into the imaging area, ensuring that the detector can accurately acquire information about all the materials in the width direction of the conveyor belt and achieving accurate identification and sorting of the materials.

[0069] Step S292, in response to the conveyor belt shifting towards the second end, adjust the position of the first limiter through the driving device so that the first limiter approaches the second limiter. According to the position of the conveyor belt in the width direction, the shift of the conveyor belt can be determined. In the image, the area of the background part outside the second end of the conveyor belt in the width direction may be smaller than the area of the background part outside the first end of the conveyor belt, from which it can be determined that the conveyor belt shifts towards the second end side. When the conveyor belt shifts towards the second end in its width direction, the materials also shift towards the second end along with the conveyor belt. Therefore, when the detector acquires information about these materials, due to the shift of the material positions along with the conveyor belt, it may cause the detector to fail to detect data of some materials, or some materials may fall into the buffer area due to the shift of the materials, resulting in the detector being unable to accurately acquire data of some materials. To ensure accurate identification and sorting of the materials, the position of the first limiter can be adjusted through the driving device to move the first limiter inwards and approach the second limiter, so that all the materials inside the second limiter can fall into the imaging area, ensuring that the detector can accurately acquire information about all the materials in the width direction of the conveyor belt and achieving accurate identification and sorting of the materials.

[0070] According to the limiter adjustment method provided in this embodiment, when it is detected that the conveyor belt deviates towards the first end in the width direction, the second limiter is moved inward by the driving device to approach the first limiter; when it is detected that the conveyor belt deviates towards the second end in the width direction, the first limiter is driven to move inward to approach the second limiter. This embodiment can adjust one side of the limiter targeted according to the deviation direction of the conveyor belt, enabling the materials that were originally outside the imaging area to return to their original positions, ensuring that all materials are within the imaging area range, effectively improving the response efficiency of the adjustment, while continuously maintaining the recognition accuracy of the materials, and improving the overall recognition accuracy and operation stability of the system for the materials.

[0071] According to the same inventive concept, the present disclosure also provides a material sorting machine for sorting materials, which may include: a conveying and detecting component and a sorting device provided in any of the foregoing embodiments. And the limiter can be adjusted by the limiter adjustment method of any of the foregoing embodiments.

[0072] The conveying and detecting component is used for conveying and detecting materials. The conveying and detecting component can convey materials through a conveying device. During the process of conveying materials, rays are emitted towards the materials by a ray device, and the rays can pass through the materials. Subsequently, the detector can receive the rays passing through the materials, thereby obtaining information about the materials, and determining information such as the position of the materials and the category to which the materials belong, so as to realize the recognition and detection of the materials. The materials are conveyed to the end of the conveying device and can fall from the end of the conveying device. After falling, the sorting device performs a sorting operation on the materials. While the conveying device is conveying materials, according to the information such as the position of the materials determined by the detector, the driving device drives the two limiters to move in the width direction of the conveying device, thereby changing the conveying width of the conveying device to ensure that all materials on the conveying device can be accurately recognized and detected by the detector.

[0073] The sorting device is arranged downstream of the conveying and detecting component and is used for sorting the materials falling from the conveying and detecting component according to the detection result of the conveying and detecting component. The sorting device can be arranged downstream of the conveying and detecting component so that the sorting device can perform a sorting operation on the materials falling from the end of the conveying device. The sorting device can include a blowing mechanism, and the blowing mechanism can change the falling trajectory of the materials by blowing gas towards the materials, thereby realizing the sorting of the materials. The sorting device can also include a push plate assembly, and the push plate assembly can change the falling trajectory of the materials by hitting the materials, thereby realizing the sorting of the materials. The detection result determined by the conveying and detecting component can include the category to which each material belongs. The same sorting operation can be performed on the materials belonging to the same category through the sorting device, so that the materials belonging to the same category can fall into the same area, realizing the separation and sorting of different categories of materials. The conveying and detecting component can also determine the position where the materials fall from the end of the conveying and detecting component, so that the sorting device can perform a more accurate sorting operation on each material.

[0074] According to the material sorting machine provided in this embodiment, during the material conveying process, the conveying and detecting component can accurately obtain information such as the image and characteristics of the material through the cooperation of the ray device and the detector, so as to accurately identify the specific category and location of the material, improving the accuracy of detection and identification. By means of two adjustable limiters arranged on the conveying device, the width of the conveying path can be dynamically adjusted according to the actual conveying position and offset of the material, keeping the material within the imaging area and improving the stability and accuracy of the identification system. Through the sorting device, according to the material category and position information provided by the detecting component, the sorting operation of the material can be accurately carried out, effectively improving the accuracy and efficiency of material identification and sorting.

[0075] This application uses specific terms to describe the embodiments of this application. Such as "one embodiment", "an embodiment", and / or "some embodiments" mean a certain feature, structure, or characteristic related to at least one embodiment of this application. Therefore, it should be emphasized and noted that the "one embodiment" or "an embodiment" or "an alternative embodiment" mentioned twice or more at different positions in this specification does not necessarily refer to the same embodiment. In addition, certain features, structures, or characteristics in one or more embodiments of this application can be combined appropriately.

[0076] In the context of this application, unless the context clearly indicates an exception, the words "a", "an", "one", and / or "the" etc. do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of the clearly identified steps and elements, and these steps and elements do not constitute an exclusive list. The method or device may also include other steps or elements.

[0077] Similarly, it should be noted that, in order to simplify the expression of the disclosure of this application and thus help the understanding of one or more application embodiments, in the previous description of the embodiments of this application, sometimes multiple features are merged into one embodiment, drawing, or description thereof. However, this disclosure method does not mean that the features required by the object of this application are more than the features mentioned above. In fact, the features of the embodiment are less than all the features of the single embodiment disclosed above.

[0078] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is only an example and does not constitute a limitation to this application. Although not explicitly stated here, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are proposed in this application, so such modifications, improvements, and corrections still belong to the spirit and scope of the embodiments of this application.

Claims

1. A conveying and detecting component, applied to a material sorting device, characterized in that Including: A conveying device for conveying materials; A ray device disposed above the conveying device for emitting rays to the materials on the surface of the conveying device; A detector disposed below the conveying device for receiving the rays passing through the materials; Two limiters disposed on both sides in the width direction of the conveying device for restricting the boundaries of the materials in the width direction of the conveying device; A driving device connected to each limiter, and the driving device is configured to drive each limiter to move in the width direction of the conveying device according to the data collected by the detector to adjust the distance between the two limiters.

2. The conveying detection assembly according to claim 1, wherein The driving device includes: A motor corresponding to each limiter and located outside the limiter for driving the limiter to move in the width direction of the conveying device; A lead screw, one end of which is connected to the limiter and the other end is connected to the corresponding motor, for being driven by the motor to push the limiter to move in the width direction of the conveying device.

3. A limiter adjustment method, applied to the conveying and detecting assembly as described in claim 1 or 2, characterized in that The method for adjusting the limiter includes: Determining imaging region data according to the data collected by the detector, where the imaging region data is the data collected from the imaging region for imaging to identify the types of the materials; Determining the imaging width of the imaging region according to the imaging region data; Adjusting the distance between the two limiters through the driving device according to the imaging width.

4. The limiter adjustment method according to claim 3, characterized in that The adjusting the distance between the two limiters through the driving device according to the imaging width includes: In response to the imaging width being greater than the available imaging width, reducing the distance between the limiters through the driving device until the imaging width is equal to the available imaging width; In response to the imaging width being less than the available imaging width, increasing the distance between the limiters through the driving device until the imaging width is equal to the available imaging width.

5. The limiter adjustment method according to claim 3, characterized in that, The method for adjusting the limiter further includes: Determining buffer region data according to the data collected by the detector, where the buffer region data is the data collected from the buffer regions on both sides of the imaging region; Adjusting the distance between the two limiters through the driving device according to the buffer region data.

6. The limiter adjustment method according to claim 5, wherein The adjusting the distance between the two limiters through the driving device according to the buffer region data includes: In response to the buffer region data containing information about the materials, reducing the distance between the limiters through the driving device until the buffer region data does not contain information about the materials.

7. The limiter adjustment method according to claim 6, wherein the limiter includes a first limiter located at the first end in the width direction of the conveying device and a second limiter located at the second end in the width direction of the conveying device, and the buffer area data includes data of a first buffer area located at the first end of the imaging area and data of a second buffer area located at the second end of the imaging area, characterized in that, The method for adjusting the limiter further includes: In response to the data of the first buffer region containing information about the materials, moving the first limiter towards the direction close to the second end through the driving device until the data of the first buffer region does not contain information about the materials; In response to the information of the material being included in the data of the second buffer area, the second stopper is moved in a direction close to the first end by the driving device until the information of the material is not included in the data of the second buffer area.

8. The limiter adjustment method according to claim 3, wherein the conveying detection assembly further includes a camera, and the conveying device includes a conveyor belt, characterized in that, The stopper adjusting method further includes: determining the position of the conveyor belt in the width direction according to the image captured by the camera; adjusting the position of one or both of the stoppers by the driving device according to the position of the conveyor belt in the width direction.

9. The limiter adjustment method according to claim 8, wherein the limiter includes a first limiter at the first end in the width direction of the conveying device and a second limiter at the second end in the width direction of the conveying device, characterized in that, The adjusting the position of one or both of the stoppers by the driving device according to the position of the conveyor belt in the width direction includes: in response to the conveyor belt shifting in the direction of the first end, adjusting the position of the second stopper by the driving device to make the second stopper close to the first stopper; in response to the conveyor belt shifting in the direction of the second end, adjusting the position of the first stopper by the driving device to make the first stopper close to the second stopper.

10. A material sorting machine, characterized in that, For sorting materials, including: the conveying and detecting assembly according to claim 1 or 2, for conveying and detecting the materials; a sorting device, arranged downstream of the conveying and detecting assembly, for sorting the materials falling from the conveying and detecting assembly according to the detection result of the conveying and detecting assembly.

Images