A drum conveyor and sorting machine
By designing a roller conveyor and shielding components, the problems of large footprint and low identification accuracy in existing sorting machines have been solved, achieving stable material conveying and efficient sorting, and reducing equipment costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HONESORT TECHNOLOGY (ZHEJIANG) CO LTD
- Filing Date
- 2025-09-23
- Publication Date
- 2026-07-21
Smart Images
Figure CN224529675U_ABST
Abstract
Description
Technical Field
[0001] This disclosure relates to the field of material sorting, specifically to a roller conveyor and a sorting machine. Background Technology
[0002] Existing sorting machines often use belt conveyors as the material feeding method, with conventional equipment dedicating more than half of its space to belt conveyors, which is the main reason for its large footprint. Other sorting machines employ circumferential or sluice-type feeding methods, reducing the footprint, but this results in slower material movement speeds, severely impacting sorting efficiency and output. Furthermore, during their movement into the identification zone, materials tend to tumble due to their own weight, leading to unstable postures that affect identification and sorting accuracy, and also limit throughput. Utility Model Content
[0003] To overcome the problems existing in the related art, an exemplary embodiment of the present disclosure provides a roller conveying device for conveying and discharging materials, comprising: a frame; a roller mounted on the frame, the axis of the roller being horizontally arranged and rotatable about the axis, a first side of the apex of the peripheral surface of the roller being used to receive the materials and a second side being used to discharge the materials; and a shielding member covering at least a portion of the peripheral surface of the second side to form a covering area for pressing down the materials passing through the covering area so that the materials detach from the peripheral surface after passing through the covering area.
[0004] In some embodiments, the roller conveyor further includes: a mounting rod extending axially along the roller, with both ends fixedly connected to the frame and disposed above the roller; the upper part of the shielding member is connected to the mounting rod, and the lower part overlaps with the roller to form the covered area.
[0005] In some embodiments, the shielding member includes: a flexible strip, the upper part of which is connected to the mounting rod, and the lower part hanging down and partially overlapping the peripheral surface of the roller to form the covering area; or, an elastic pressure plate, the upper part of which is connected to the mounting rod, and the lower part overlapping the peripheral surface of the roller to form the covering area.
[0006] In some embodiments, the central angle of the roller corresponding to the covered area is less than or equal to 60 degrees, and the starting point of the covered area is located at the vertex of the peripheral surface or the second side.
[0007] In some embodiments, the roller conveyor further includes a chute connected to the frame and inclinedly disposed on the first side of the roller, wherein one end of the chute is used to receive the material and the other end is used to discharge the material to the roller.
[0008] In some embodiments, the position where the chute discharges the material to the drum forms the feed area of the drum between the apex of the drum's peripheral surface and the feed area, and the central angle of the drum corresponding to the feed area is less than or equal to 45 degrees.
[0009] In some embodiments, the roller includes: a cylindrical body, which is horizontally connected to the frame at both ends in the axial direction; and a buffer layer, which covers the circumferential surface of the cylindrical body for buffering the received material.
[0010] In some embodiments, the roller conveyor further includes: a magnet disposed radially inside the roller, corresponding to a region on a first side of the apex of the roller's peripheral surface from the apex to the material receiving position, which enables the metal material received by the roller to be attracted to the peripheral surface of the roller on the first side by the magnetic force of the magnet.
[0011] Secondly, this disclosure also provides a sorting machine for sorting materials, comprising: a roller conveyor as described in the first aspect; an identification mechanism disposed on one side of the roller for identifying materials detached from the roller to determine the category of the materials; and a sorting mechanism disposed below the identification mechanism for sorting the materials according to the category.
[0012] In some embodiments, the sorting machine further includes a feeding mechanism for feeding the material to the roller conveyor.
[0013] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure.
[0014] This disclosure provides a roller conveyor and sorting machine. By replacing the belt conveyor with rollers as the material feeding mechanism, it saves space by eliminating the need for arranging the rollers and belts of the belt conveyor, thus reducing the space occupied and the size of the equipment. It also reduces the number of rollers, bearings, conveyor belts, vertical rollers, and other related accessories, greatly simplifying maintenance and eliminating the need to consider belt misalignment, thereby lowering costs. Furthermore, the roller conveyor of this disclosure is equipped with a shielding component that can cover the discharge end of the roller by pressing it down. This ensures that the material can be conveyed under constrained conditions and ejected in a stable posture, guaranteeing the detection accuracy and sorting precision of subsequent identification. Attached Figure Description
[0015] This disclosure can be better understood by describing exemplary embodiments of the present disclosure in conjunction with the accompanying drawings, in which:
[0016] Figure 1 This is a schematic diagram of a roller conveyor according to a disclosed exemplary embodiment;
[0017] Figure 2 This is a schematic diagram of a roller conveyor according to another disclosed exemplary embodiment;
[0018] Figure 3 This is a schematic diagram of a roller conveyor according to another disclosed exemplary embodiment;
[0019] Figure 4 This is a schematic diagram of a roller conveyor according to another disclosed exemplary embodiment.
[0020] Figure 5 This is a schematic diagram of a sorting machine according to a disclosed exemplary embodiment; Detailed Implementation
[0021] The following describes specific embodiments of this disclosure. It should be noted that, in order to provide a concise description, this specification cannot exhaustively describe all features of the actual embodiments. It should be understood that, in the actual implementation of any embodiment, just as in any engineering or design project, various specific decisions are often made to achieve the developer's specific goals and to meet system-related or business-related constraints, and this can change from one embodiment to another. Furthermore, it is understood that although the efforts made in this development process may be complex and lengthy, for those skilled in the art related to the content of this disclosure, some design, manufacturing, or production modifications based on the technical content disclosed in this disclosure are merely conventional technical means and should not be construed as insufficient content of this disclosure.
[0022] Unless otherwise defined, the technical or scientific terms used in the claims and description shall have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in the specification and claims of this utility model patent application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. The terms "an" or "a" and similar words do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" and similar words mean that the element or object preceding "comprising" or "including" encompasses the element or object listed following "comprising" or "including" and its equivalents, and do not exclude other elements or objects. The terms "connected" or "linked" and similar words are not limited to physical or mechanical connections, nor are they limited to direct or indirect connections.
[0023] To overcome the problems existing in related technologies, an exemplary embodiment of this disclosure provides a roller conveyor 100 for conveying and discharging materials, such as... Figure 1-3 As shown, the roller conveyor 100 may include: a frame 110, rollers 120, and a baffle 130. The frame 110 may be as follows: Figure 3 As shown, the frame structure consists of multiple longitudinal beams and transverse beams, used to support the frame fixed to the ground or to the frame of the sorting machine.
[0024] Roller 120 is used to receive materials, and the rotation of roller 120 conveys the materials, while on the other side the materials are disengaged from roller 120. For example... Figure 5 As shown, the material detached from the roller 120 is identified by the identification mechanism 200 to determine its category, and then sorted by the sorting mechanism 300. During the receiving and conveying process, the roller 120 stabilizes the material's movement, resulting in a more stable posture and reduced tumbling of the material in the air after it leaves the roller 120. This makes both the identification and sorting processes more reliable and improves accuracy.
[0025] like Figure 1 , Figure 2 As shown, roller 120 can be mounted on frame 110. Roller 120 is horizontally positioned to ensure that materials can be conveyed primarily on its upper circumferential surface. The axis of roller 120 is essentially horizontal, and it can be supported by frame 110 at both ends along the axial direction. Figure 1 As shown, bearing seats 141 can be provided on the two crossbeams above the frame 110, and bearings can be provided in the bearing seats 111 for connecting with the roller 120. The roller conveyor device 100 may also include a drive mechanism for driving the rotation of the roller 120. In some embodiments, the drive mechanism may include a motor 142, which is installed at the bottom of the frame 110 or at other locations. The output shaft of the motor 142 can transmit power to one end of the roller 120 through a transmission mechanism 143 such as a synchronous belt or synchronous pulley, thereby driving the roller 120 to rotate around its axial direction.
[0026] like Figure 2 As shown, the apex of the peripheral surface of roller 120 (such as...) Figure 2 The first side of point A shown (as shown) Figure 2 The area to the right of point A (as shown) is used to receive material. The material slides from one side onto the surface of roller 120, and then rotates with roller 120 (as shown). Figure 2 Rotate counterclockwise to move to the second side (e.g.) Figure 2 (as shown on the left side of point A), and further as the roller 120 rotates, it detaches from the surface of the roller 120 under the influence of the roller 120 speed and the material's own gravity.
[0027] To ensure the stability of the material on the circumferential surface of the roller 120 as it rotates, and to prevent unexpected movement, jumping, or rolling, especially after the material has moved to the second side with the roller 120, it is also necessary to prevent the material from detaching from the roller 120 at an unexpected position due to its own gravity, which could lead to inaccurate identification or sorting. In this embodiment, the roller conveyor 100 is also provided with a blocking member 130, such as... Figure 1 , Figure 2 As shown, the blocking member 130 can cover at least a portion of the peripheral surface of the second side of the roller 120, forming a covered area. After the material rotates to the second side with the roller 120, it is prone to instability due to factors such as the speed of the roller 120 and the weight of the material itself, such as sliding or rolling on the surface of the roller 120. The blocking member 130 can press down the material in the path, allowing it to move reliably on the peripheral surface of the roller 120 as the roller 120 rotates. After the material passes through the covered area, that is, after being pressed down by the blocking member 130, it can smoothly detach from the roller 120 under the influence of its own weight and the speed of the roller 120. This ensures that all the material can detach from the surface of the roller 120 at approximately the same height, making the parabolic trajectory of the material after detaching from the roller 120 basically consistent. This ensures that the material passes through the identification mechanism 200 at the same height, improving the accuracy of identification; it also ensures that the material passes through the sorting mechanism 300 at the same height, enabling stable and reliable sorting.
[0028] When the material passes through the vertex (e.g.) Figure 2 After point A), during the falling process, some items have irregular shapes and the friction between the material and the contact surface of the roller is insufficient to support the influence of their own weight, which may cause them to roll or detach unexpectedly. By using a shielding component to cover the discharge end of the roller 120 in a pressing manner, regardless of the particle size of the material, it can be thrown out in a stable posture under the constraint.
[0029] The roller conveyor 100 disclosed herein uses rollers 120 as the material distribution mechanism, saving space and reducing the footprint and equipment size. Simultaneously, it reduces the number of rollers, bearings, conveyor belts, vertical rollers, and other related accessories found in traditional belt conveyors, thus reducing maintenance work and lowering equipment and maintenance costs. Furthermore, the roller conveyor 100 is equipped with a shielding component 130, which can cover the discharge end (partially the second side) of rollers 120 by pressing, ensuring that materials can be conveyed under constrained conditions and ejected in a stable posture, guaranteeing the accuracy of subsequent identification and sorting.
[0030] In some embodiments, the roller conveyor 100 may further include a mounting rod 150. For example... Figure 1 , Figure 2As shown, the mounting rod 150 extends axially along the roller 120 and is substantially horizontal. Both ends of the mounting rod 150 are fixedly connected to the frame 110 and are positioned above the roller 120. Figure 1 , Figure 2 As shown, the mounting rod 150 can span across the top of the roller 120 and can be fixedly mounted on the side plates 171 on both sides of the frame 110 to achieve a fixed connection with the frame 110. The mounting rod 150 can be at a certain height from the top of the roller 120 to avoid interference with the material conveyed on the surface of the roller 120. The mounting rod 150 can be basically positioned at the apex of the roller 120, that is, the highest point (e.g., ...). Figure 2 Above point A (in the middle section), it can also be positioned on the side near the discharge point at the apex, i.e., the second side. The mounting rod 150 connects to the upper part of the shielding member 130 and is used to install the shielding member 130, allowing its lower part to overlap with the roller 120, forming a covered area. With the mounting rod 150 positioned above the roller 120, the shielding member 130, under its own weight, overlaps with the second side of the roller 120, pressing down on the material and ensuring reliable material conveying and release. Positioning the mounting member 150 above the apex or the second side ensures that the area where the shielding member 130 overlaps, i.e., the covered area, starts at or to the left of the apex and mainly overlaps on the second side, avoiding interference with material conveying on the first side.
[0031] In some embodiments, such as Figure 1 , Figure 2 As shown, the shielding member 130 may include: a flexible strip, i.e. Figure 1 , Figure 2 The shielding element 130 is shown. The upper part of the flexible strip is connected to the mounting rod 150, and the lower part hangs down and partially overlaps the peripheral surface of the roller 120 to form a covering area. In some examples, the flexible strip can be a strip made of a flexible material, such as... Figure 1 As shown, multiple flexible belts can be arranged side-by-side along the axial direction of the roller 120. These flexible belts are independent of each other and can individually press the material they pass through. In other examples, the flexible belt can also be a single, integral flexible sheet that covers the roller 120 as a whole, pressing the material through its own flexibility and gravity, and is easy to replace. In still other examples, the flexible belt can be a fine flexible belt, similar to a brush, arranged side-by-side on the mounting rod, pressing the material from below. The flexible belts ensure that regardless of the material particle size, it can be thrown out in a stable posture under constraint.
[0032] In some embodiments, the shielding member 130 may further include an elastic pressure plate (not shown), the upper part of which can be connected to the mounting rod 150, and the lower part overlapping the peripheral surface of the roller 120 to form a covering area. The elastic pressure plate can provide greater resistance, which can meet the impulse of the material to be covered when the material is heavy or the roller 120 rotates at a high speed, thereby ensuring the controllable conveying of the material and enabling the roller 120 to rotate at a high speed to improve the efficiency of conveying and subsequent sorting.
[0033] In other embodiments, the shielding member 130 may be an air field generated by a nozzle array, which presses the material against the peripheral surface of the roller 120, and the material separates from the roller 120 after leaving the air field.
[0034] In some embodiments, such as Figure 2 As shown, the central angle of the roller 120 corresponding to the covered area (e.g.) Figure 2 The central angle α can be less than or equal to 60 degrees, and the starting point of the covered area is located at the vertex of the peripheral surface (e.g., ...). Figure 2 (at point A) or the second side (such as Figure 2 (Left side of point A in the middle). In this embodiment, the starting point of the covering area can extend from the vertex to the discharge end, avoiding the obstruction member 130 from affecting the material on the first side that has not reached the vertex. The covering angle of the covering area can be less than or equal to 60 degrees, so that the material can smoothly detach from the peripheral surface of the roller 120 after being pressed by the obstruction member 130. If the covering area is too small, that is, the central angle α is too small, some materials may remain on the peripheral surface of the roller 120 after passing through the covering area and continue to rotate with the roller 120, while some materials will detach immediately after passing through the covering area, making the detachment point of the material unstable and affecting the accuracy of subsequent identification and sorting. On the other hand, if the covering area is too large, that is, the central angle α is too large, the material will not be able to detach smoothly, which will also affect the subsequent identification and sorting. In this embodiment, the covering area formed by the obstruction member 130 is set with a corresponding central angle of no more than 60 degrees, which can ensure the stability of the material and also allow the material to detach smoothly from the roller 120. In some examples, the central angle α corresponding to the covering area can be 30 degrees or 45 degrees. In some embodiments, the central angle formed between the end point and the vertex of the coverage area can be 45 degrees, thereby ensuring that the material detaches at a position of 45 degrees on the surface of the roller 120, so that the material has a certain horizontal velocity component when it detaches, the parabola is more reliable, and it is also convenient to install the identification mechanism 200 and the sorting mechanism 300.
[0035] In some embodiments, the roller conveyor 100 may further include a chute 160. The chute 160 may be connected to the frame 110, such as... Figure 1 , Figure 2 , Figure 4As shown, the two ends of the slide 160 can be connected to the side plates 171 respectively provided on both sides of the frame 110. The slide 160 can be inclinedly arranged on the first side of the roller 120. One end of the slide 160 (the end away from the roller 120) is used to receive material, and the other end (the end closer to the roller 120) is used to discharge material into the roller 120. By receiving external material through the slide 160, the material is buffered to a certain extent, allowing the material to be supplied to the peripheral surface of the roller 120 more smoothly and stably. In some embodiments, the side plates 171 can be respectively provided on both sides of the frame 110 and connected to the frame 110 through the base plate 172. The two side plates 171 are respectively located at the two axial ends of the roller 120 and extend upwards from the roller 120. On the one hand, this can prevent material from slipping off the roller 120 axially, and on the other hand, it facilitates the installation of the slide 160. Long holes can be provided on the side plate 171 to fix the front and rear ends of the slide 160, so as to facilitate the adjustment of the tilt angle and overall height of the slide 160, thereby ensuring that the end of the slide 160 is closer to the surface of the drum 120 and achieving stable material feeding.
[0036] In some embodiments, such as Figure 2 As shown, the position where the chute 160 discharges material to the drum 120 is relative to the vertex of the peripheral surface of the drum 120 (e.g., Figure 2 The feed area of roller 120 is formed between point A in the middle, and the central angle of the roller corresponding to the feed area (e.g., at point A) is... Figure 2The central angle b) is less than or equal to 45 degrees. In this embodiment, the discharge end of the slide 160, i.e., the roller 120, receives material from the position of the slide 160. This position is a distance from the apex of the roller 120, thus ensuring that the material rebounds after falling into the roller 120 due to collision. Furthermore, in the feeding area on the circumferential surface of the roller 120 corresponding to the central angle b, the movement state of the material is relatively unstable. This area serves as a buffer zone for the material to adapt to the speed of the roller 120, allowing the material to gradually stabilize. The angle of the slide 160 can be adjusted according to the speed of the roller 120, i.e., fixed by the corresponding elongated holes of the slide 160 and the side plate 171. In some embodiments, the angle of the central angle b corresponding to the feeding area can be related to the rotational speed of the roller 120 and the diameter of the roller 120. The faster the rotation speed of the roller 120, the larger the central angle b corresponding to the feeding area needs to be, ensuring that the material can remain stable within this area (i.e., before moving to vertex A). Conversely, if the rotation speed of the roller 120 is slower (provided it is sufficient to move the material), the central angle b corresponding to the feeding area can be relatively smaller, preventing the material from being unable to be moved by the roller 120. On the other hand, if the diameter of the roller 120 is smaller, the central angle b corresponding to the feeding area is larger, ensuring that the material has sufficient distance on the surface of the roller 120 to remain stable. Conversely, if the diameter of the roller 120 is larger, the central angle b corresponding to the feeding area can be relatively smaller, also providing sufficient distance for the material to remain stable before reaching the vertex. The stability described in this disclosure can be understood as essentially no relative movement between the material and the roller 120. In the embodiments of this disclosure, the central angle of the roller corresponding to the feeding area is less than or equal to 45 degrees, for example, it can be 30 degrees, 15 degrees, etc., which can ensure stable receiving and conveying of the material.
[0037] In some embodiments, the roller 120 may include: a cylindrical body, which is horizontally connected to the frame 110 at both ends along its axial direction; and a buffer layer covering the circumferential surface of the cylindrical body for buffering the received material. In this embodiment, a buffer layer formed of a buffering material, such as rubber, may be provided on the surface of the roller 120. The buffer layer can buffer the contacting material, prevent the material from bouncing or rolling, and also increase friction to ensure that the material moves stably as the roller 120 rotates.
[0038] In some embodiments, the roller conveyor 100 may further include a magnet (not shown). The magnet may be disposed radially inside the roller 120 and extend axially, corresponding to the area from the vertex to the material receiving position on the first side of the peripheral surface of the roller 120, i.e., the feed area. In the scenario of metal material sorting, by setting the magnet, a magnetic force is formed in the feed area, which enables the metal material received by the roller 120, such as iron ore, to be attracted to the peripheral surface of the roller 120 on the first side by the magnetic force of the magnet, preventing the ore from bouncing or rolling. On the other hand, on the second side of the roller 120, that is, the discharge side, a magnet may not be provided, so that the ore can smoothly detach from the roller 120 after passing through the covered area formed by the shielding member 130.
[0039] Based on the same inventive concept, this disclosure also provides a sorting machine, such as... Figure 5 The schematic diagram illustrates the layout of a sorting machine. The sorting machine, used for sorting materials, may include: a roller conveyor 100 as described in any of the preceding embodiments, for receiving and conveying materials; an identification mechanism 200, disposed on one side of the roller 120, for identifying materials detached from the roller 120 to determine the material's category; and a sorting mechanism 300, disposed below the identification mechanism 200, for sorting materials according to their category. The roller conveyor 100 reduces the size of the sorting machine, lowers costs, and the shielding member 130 disposed on the roller 120 ensures stable and reliable material conveying, improving sorting accuracy.
[0040] In some embodiments, the sorting machine may further include: a feeding mechanism 400, such as... Figure 2 As shown, the feeding mechanism 400 is used to feed materials to the chute 160 of the roller conveyor 100. The feeding mechanism 400 can be a vibrating feeder, which allows the material to be fed to the chute 160 more evenly.
[0041] This application uses specific terms to describe embodiments of the application. Terms such as "an embodiment," "one embodiment," and / or "some embodiments" refer to a particular feature, structure, or characteristic associated with at least one embodiment of the application. Therefore, it should be emphasized and noted that references to "an embodiment," "one embodiment," or "an alternative embodiment" in different locations throughout this specification do not necessarily refer to the same embodiment. Furthermore, certain features, structures, or characteristics in one or more embodiments of the application can be appropriately combined.
[0042] In the context of this application, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" 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 explicitly identified steps and elements, which do not constitute an exclusive list, and the method or apparatus may also include other steps or elements.
[0043] Similarly, it should be noted that, in order to simplify the description of the present application and thus aid in the understanding of one or more embodiments, the foregoing description of the embodiments of the present application sometimes combines multiple features into a single embodiment, drawing, or description thereof. However, this disclosure method does not imply that the subject matter of the present application requires more features than those mentioned in the claims. In fact, the embodiments contain fewer features than all the features of the single embodiments disclosed above.
[0044] The basic concepts have been described above. Obviously, for those skilled in the art, the above disclosure is merely illustrative and does not constitute a limitation of this application. Although not explicitly stated herein, those skilled in the art may make various modifications, improvements, and corrections to this application. Such modifications, improvements, and corrections are suggested in this application, and therefore remain within the spirit and scope of the embodiments of this application.
Claims
1. A roller conveyor for conveying and discharging materials, characterized in that, include: frame; A roller is mounted on the frame. The axis of the roller is horizontally set and can rotate around the axis. The first side of the apex of the peripheral surface of the roller is used to receive the material, and the second side is used to discharge the material. A shielding member covers at least a portion of the peripheral surface of the second side to form a covering area for pressing down on material passing through the covering area so that the material detaches from the peripheral surface after passing through the covering area.
2. The roller conveyor according to claim 1, wherein, The roller conveyor further includes: a mounting rod extending along the axial direction of the roller, with both ends fixedly connected to the frame, and disposed above the roller; The upper part of the shielding member is connected to the mounting rod, and the lower part overlaps with the roller to form the covered area.
3. The roller conveyor according to claim 2, wherein, The shielding component includes: A flexible strip, the upper part of which is connected to the mounting rod, and the lower part hanging down and partially overlapping the circumferential surface of the roller to form the covering area; or, The elastic pressure plate is connected to the mounting rod at the top and overlaps with the circumferential surface of the roller at the bottom to form the covering area.
4. The roller conveyor according to claim 2, wherein, The central angle of the roller corresponding to the covered area is less than or equal to 60 degrees, and the starting point of the covered area is located at the vertex of the peripheral surface or the second side.
5. The roller conveyor according to claim 1, wherein, The roller conveyor also includes: A chute, connected to the frame, is inclinedly disposed on the first side of the drum. One end of the chute is used to receive the material, and the other end is used to discharge the material to the drum.
6. The roller conveyor according to claim 5, wherein, The position where the chute discharges the material to the drum forms the feed area of the drum between the apex of the drum's peripheral surface and the feed area. The central angle of the drum corresponding to the feed area is less than or equal to 45 degrees.
7. The roller conveyor according to claim 1, wherein, The roller includes: The cylindrical body is horizontally connected to the frame at both ends along its axial direction. A buffer layer, covering the circumferential surface of the cylinder, is used to buffer the received material.
8. The roller conveyor according to any one of claims 1-7, wherein, The roller conveyor also includes: A magnet is disposed radially inside the drum, corresponding to the area from the vertex to the material receiving position on the first side of the drum's peripheral surface. This magnet enables the metal material received by the drum to be attracted to the peripheral surface of the drum on the first side by the magnetic force of the magnet.
9. A sorting machine for sorting materials, characterized in that, include: The roller conveyor as described in any one of claims 1-8; An identification mechanism, located on one side of the roller, is used to identify materials that have detached from the roller in order to determine the category of the materials; A sorting mechanism is located below the identification mechanism and is used to sort materials according to their category.
10. The sorting machine according to claim 9, wherein, The sorting machine also includes: A feeding mechanism is used to feed the material into the roller conveyor.