Material sorting system

Abstract

The embodiment of the utility model provides a material sorting system, and relates to the technical field of recycling of renewable resources. The material sorting system comprises a sorting machine, a feeding device, a finished product bin, a transfer device and a sorting missing and returning device, and the feeding device corresponds to the sorting machine and is used for conveying materials to the sorting machine; the finished product bin corresponds to the sorting machine and is used for receiving a part of materials sorted by the sorting machine; the transfer device corresponds to the sorting machine and is used for receiving the other part of materials sorted by the sorting machine; and the higher end of the missing sorting and returning device is connected with the transfer device, the lower end of the missing sorting and returning device is connected with the feeding device, and the missing sorting and returning device is used for receiving the missing sorting materials conveyed by the transfer device and conveying the missing sorting materials to the feeding device. According to the material sorting system, materials which are not subjected to sorting can conveniently flow back to the feeding device through gravitational potential energy of the materials, then flow through the sorting machine and enter the finished product bin, the operation efficiency is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of renewable resource recycling technology, and more specifically, to a material sorting system. Background Technology

[0002] With the continuous advancement of recyclable waste sorting technology, intelligent sorting equipment such as optical sorters and color sorters are widely used in the waste treatment industry. Although the recognition accuracy of these intelligent devices has significantly improved, it is still difficult to achieve 100% accurate sorting, resulting in some target materials not being effectively sorted and thus missing some materials.

[0003] To reduce material loss, current sorting lines typically add a manual re-sorting step at the end to pick out any missed materials. The sorted materials are then placed in packaging bags or plastic crates and transported to the storage warehouse manually or by forklift. However, this method not only has high labor costs and low efficiency but also increases the operating costs of transportation equipment (such as forklifts), thus affecting overall economic efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a material sorting system that can conveniently return missed materials to the feeding device using their own gravitational potential energy, thereby improving work efficiency and reducing production costs.

[0005] The embodiments of this utility model are implemented as follows:

[0006] An embodiment of this utility model provides a material sorting system, comprising:

[0007] Sorting machine;

[0008] A feeding device is provided in correspondence with the sorting machine and is used to transport materials to the sorting machine;

[0009] The finished product warehouse is set up in correspondence with the sorting machine and is used to receive a portion of the materials after they have been sorted by the sorting machine.

[0010] A transfer device, corresponding to the sorting machine, is used to receive another portion of the material after it has been sorted by the sorting machine; and

[0011] The device for recovering material that has been missed is connected at its higher end to the transfer device and at its lower end to the feeding device. The device is used to receive material that has been missed from the transfer device and to transport the material to the feeding device.

[0012] In an optional embodiment, the material return device includes a funnel, a baffle structure, and a return pipe. The inlet of the funnel is correspondingly provided with the transfer device. The baffle structure is movably provided with the outlet of the funnel to open or close the outlet of the funnel. The higher end of the return pipe is connected to the funnel, and the lower end of the return pipe is correspondingly provided with the feeding device to return the material passing through the outlet of the funnel to the feeding device.

[0013] In an optional embodiment, both the funnel and the reflux pipe are located above the feeding device, with the top of the reflux pipe connected to the bottom of the funnel, and the bottom of the reflux pipe corresponding to the feeding device; and / or,

[0014] The material return device also includes a first weighing device, which is located in the funnel and is correspondingly arranged with the material blocking structure.

[0015] In an optional embodiment, the baffle structure includes a baffle plate, a support plate, and a driving component. The baffle plate is disposed at the outlet of the funnel, the support plate is disposed on the outer side wall of the funnel, and the driving component is disposed on the support plate and connected to the baffle plate, for driving the baffle plate to open or close the outlet of the funnel.

[0016] In an optional embodiment, the baffle plate includes a fixed part and a movable part. The fixed part is disposed on the inner sidewall of the funnel, and the movable part is rotatably connected to the fixed part. The driving member is connected to the movable part; and / or,

[0017] The number of baffle plates, support plates, and driving components are all two. The two baffle plates are arranged opposite each other at the outlet of the funnel, the two support plates are arranged opposite each other on the outer side wall of the funnel, and the two driving components are respectively arranged on the two support plates and respectively connected to the two baffle plates.

[0018] In an optional embodiment, the transfer device includes a transfer conveying mechanism and a manual sorting platform. The transfer conveying mechanism is disposed on the manual sorting platform and is also disposed correspondingly to the sorting machine and the missed material return device. It is used to receive the materials sorted by the sorting machine and to transport the missed materials to the missed material return device.

[0019] In an optional embodiment, the material sorting system further includes a miscellaneous material bin, which is correspondingly arranged with the transfer and conveying mechanism to receive miscellaneous materials on the transfer and conveying mechanism.

[0020] In an optional embodiment, the material sorting system further includes a second weighing device, which is disposed in the miscellaneous material bin.

[0021] In an optional embodiment, both the transfer conveying mechanism and the manual sorting platform are located above the sorting machine;

[0022] The material sorting system further includes a first inclined conveying mechanism and a first horizontal conveying mechanism. The first inclined conveying mechanism is spaced apart from the transfer conveying mechanism and is also correspondingly arranged with the first horizontal conveying mechanism and the sorting machine. It is used to convey a portion of the material sorted by the sorting machine to the first horizontal conveying mechanism. The first horizontal conveying mechanism is correspondingly arranged with the transfer conveying mechanism and is used to convey the material conveyed by the first inclined conveying mechanism to the transfer conveying mechanism.

[0023] In an optional embodiment, the material sorting system further includes a third weighing device, which is located in the finished product warehouse; and / or,

[0024] The material sorting system further includes a pneumatic conveyor, one end of which is connected to the sorting machine, and the other end of which is correspondingly positioned to the finished product bin, for conveying a portion of the material sorted by the sorting machine to the finished product bin; and / or

[0025] The feeding device includes a second horizontal conveying mechanism and a second inclined conveying mechanism. The second horizontal conveying mechanism is correspondingly arranged with the missed material return device, and the second inclined conveying mechanism is also correspondingly arranged with the second horizontal conveying mechanism and the sorting machine.

[0026] The beneficial effects of this utility model embodiment include:

[0027] This material sorting system, through a feeding device, transports materials to be sorted to a sorting machine. After sorting, a portion of the material is separated for recycling and stored in the finished product warehouse. The remaining material actually includes the material missed by the sorting machine. Furthermore, by incorporating a transfer device, the missed material from this portion can be separated during transfer. This missed material is then returned to the feeding device using its own gravitational potential energy via a return device. The missed material is then re-sorted by the sorting machine before entering the finished product warehouse. It's easy to understand that this return method, compared to the existing method of placing the missed material in packaging bags or plastic crates and then manually or with forklifts for storage, eliminates the need for manual handling or additional transportation equipment, improving operational efficiency and reducing production costs. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 A first-view structural schematic diagram of the material sorting system provided in an embodiment of this utility model;

[0030] Figure 2 A second-view structural schematic diagram of the material sorting system provided in an embodiment of this utility model;

[0031] Figure 3 A partial structural schematic diagram of the material sorting system provided in this embodiment of the utility model;

[0032] Figure 4 A first-view structural schematic diagram of the missed material return device provided in an embodiment of this utility model;

[0033] Figure 5 A second-view structural schematic diagram of the missed material return device provided in an embodiment of this utility model;

[0034] Figure 6 This is a schematic diagram showing the baffle plate of the material return device provided in an embodiment of the present invention in the open state.

[0035] Icons: 100-Material sorting system; 10-Sorter; 20-Feeding device; 21-Second horizontal conveying mechanism; 22-Second inclined conveying mechanism; 30-Finished product bin; 40-Transfer device; 41-Transfer conveying mechanism; 42-Manual sorting platform; 50-Missing material return device; 51-Function funnel; 52-Blocking structure; 521-Blocking plate; 5211-Fixed part; 5212-Moving part; 522-Support plate; 523-Drive component; 53-Return pipe; 60-First weighing device; 70-Miscellaneous material bin; 80-Pneumatic conveyor; 91-First inclined conveying mechanism; 92-First horizontal conveying mechanism. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0039] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0040] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0041] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0042] As described in the background section, to reduce material loss, current sorting lines typically add a manual re-sorting step at the end to pick out any missed materials. The sorted materials are then placed in packaging bags or plastic crates and transported to the storage warehouse manually or by forklift. However, this method not only has high labor costs and low efficiency but also increases the operating costs of transportation equipment (such as forklifts), thus affecting overall economic efficiency.

[0043] Based on this, please refer to Figures 1-6 The present invention provides a material sorting system 100, which effectively improves the aforementioned technical problems. It allows for the convenient return of missed materials to the feeding device 20 using the material's own gravitational potential energy, thereby improving operational efficiency and reducing production costs. The material sorting system 100 will be described in detail below.

[0044] Please refer to Figures 1-3 , Figure 1 This is a first-view structural diagram of the material sorting system 100 provided in this embodiment. Figure 2 This is a second-view structural schematic diagram of the material sorting system 100 provided in this embodiment. Figure 3 This is a partial structural schematic diagram of the material sorting system 100 provided in this embodiment. (In conjunction with...) Figures 1-3 The material sorting system 100 includes a sorting machine 10, a feeding device 20, a finished product bin 30, a transfer device 40, and a material return device 50 for materials that have been sorted but not sorted. The feeding device 20 is configured corresponding to the sorting machine 10 and is used to transport materials to the sorting machine 10. The finished product bin 30 is configured corresponding to the sorting machine 10 and is used to receive a portion of the materials that have been sorted by the sorting machine 10. The transfer device 40 is configured corresponding to the sorting machine 10 and is used to receive another portion of the materials that have been sorted by the sorting machine 10. The higher end of the material return device 50 is connected to the transfer device 40, and the lower end of the material return device 50 is connected to the feeding device 20. The material return device 50 is used to receive the materials that have been sorted but not sorted from the transfer device 40 and to transport the materials that have been sorted but not sorted to the feeding device 20.

[0045] In other words, the feeding device 20 can transport the materials that need to be sorted to the sorting machine 10. After sorting by the sorting machine 10, a portion of the materials are sorted out for recycling and transported to the finished product warehouse 30 for storage. The other portion of the materials actually includes materials that were missed by the sorting machine 10. By setting up a transfer device 40, the materials that were missed in this portion of the materials can be sorted out during the transfer process. Then, the materials are returned to the feeding device 20 by the gravitational potential energy of the materials through the missed material return device 50. After that, the missed materials are sorted again by the sorting machine 10 and enter the finished product warehouse 30. It is easy to understand that by setting up this missed material return method, compared with the existing method of putting the missed materials into packaging bags or plastic baskets and then transferring and storing them manually or with forklifts, there is no need for manual handling or additional transportation equipment, which can improve operation efficiency and reduce production costs.

[0046] It should be noted that the "corresponding setup" mentioned above can be understood as the setup method for material transportation between devices or equipment. Specifically, on a production line, it can be understood as the method of upstream and downstream material transportation. For example, in this embodiment, the feeding device 20 is upstream of the sorting machine 10 and downstream of the waste material return device 50, while the finished product bin 30 and the transfer device 40 are downstream of the sorting machine 10. Of course, the waste material return device 50 is also downstream of the transfer device 40, thereby realizing the transportation of materials from upstream to downstream. Through the corresponding cooperation between the waste material return device 50 and the feeding device 20, a circulating material sorting line can be formed, thereby enabling the waste material to pass through the feeding device 20 and the sorting machine 10 again and be transported to the finished product bin 30 for storage.

[0047] For details, please refer to Figure 4 and Figure 5 , Figure 4 This is a first-view structural schematic diagram of the missed material return device 50 provided in this embodiment. Figure 5 This is a second-view structural schematic diagram of the missed material return device 50 provided in this embodiment. (Combined with...) Figures 1-5 The material return device 50 includes a funnel 51, a baffle structure 52, and a return pipe 53. The inlet of the funnel 51 is correspondingly provided with the transfer device 40; the baffle structure 52 is movably provided with the outlet of the funnel 51 for opening or closing the outlet of the funnel 51. The higher end of the return pipe 53 is connected to the funnel 51, and the lower end of the return pipe 53 is correspondingly provided with the feeding device 20 for returning the material passing through the outlet of the funnel 51 to the feeding device 20.

[0048] In other words, during the sorting process, the transfer device 40 transports the material that was missed to the feed inlet of the funnel 51, and the baffle structure 52 opens the discharge outlet of the funnel 51, allowing the material that was missed to enter the return pipe 53. Then, the material that was missed is transported to the feeding device 20 through the return pipe 53. The return process of the material that was missed is convenient and can improve work efficiency.

[0049] Furthermore, to facilitate the return of missed materials, both the funnel 51 and the return pipe 53 are located above the feeding device 20, with the top of the return pipe 53 connected to the bottom of the funnel 51 and the bottom of the return pipe 53 corresponding to the feeding device 20. Understandably, this vertical design allows for easier material flow within the funnel 51 and return pipe 53 under gravity, eliminating the need for a conveying mechanism and reducing production costs.

[0050] Furthermore, to facilitate real-time acquisition of the weight of the missed material, the missed material return device 50 also includes a first weighing device 60, which is disposed in the funnel 51 and correspondingly disposed with the material blocking structure 52. By setting the first weighing device 60, the weight of the missed material can be easily known. Compared with the existing method of packaging the missed material and transporting it to a weighbridge for weighing, this can improve work efficiency and reduce labor and transportation costs.

[0051] Please continue to combine Figure 4 Specifically, the baffle structure 52 includes a baffle plate 521, a support plate 522, and a driving component 523. The baffle plate 521 is disposed at the outlet of the funnel 51, the support plate 522 is disposed on the outer wall of the funnel 51, and the driving component 523 is disposed on the support plate 522 and connected to the baffle plate 521, used to drive the baffle plate 521 to open or close the outlet of the funnel 51. The support plate 522 ensures the stable installation of the driving component 523. By driving the support plate 522 to move through the driving component 523, the opening and closing degree of the baffle plate 521 can be easily controlled, thereby facilitating the control of the flow rate of the missed material return. Furthermore, it can cooperate with the first weighing device 60 to facilitate weighing after the outlet of the funnel 51 is closed, thus improving efficiency.

[0052] It should be noted that in this embodiment, the driving component 523 is specifically a cylinder. Of course, in other embodiments, the driving component 523 can also be a hydraulic cylinder, an electric push rod, or other driving structures.

[0053] Furthermore, it should be noted that in this embodiment, there are two baffle plates 521, two support plates 522, and two driving components 523. The two baffle plates 521 are positioned opposite each other at the outlet of the funnel 51, the two support plates 522 are positioned opposite each other on the outer wall of the funnel 51, and the two driving components 523 are respectively positioned on the two support plates 522 and connected to the two baffle plates 521. The cooperation of the two baffle plates 521 improves the stability of material blocking and increases the opening and closing methods of the outlet of the funnel 51, thus better controlling the material backflow rate. Of course, in other embodiments, the number of baffle plates 521, support plates 522, and driving components 523 can be one, three, or four, etc., and their arrangement and opening / closing methods can be determined according to actual design requirements.

[0054] Please refer to Figure 6 , Figure 6 This is a schematic diagram showing the baffle plate 521 of the missed material return device 50 provided in this embodiment in the open state, combined with... Figures 4-6In this embodiment, the baffle plate 521 includes a fixed part 5211 and a movable part 5212. The fixed part 5211 is disposed on the inner sidewall of the funnel 51, and the movable part 5212 is rotatably connected to the fixed part 5211. The driving member 523 is connected to the movable part 5212. By disposing the fixed part 5211 on the inner sidewall of the funnel 51, the installation stability of the baffle plate 521 can be improved, and the rotational engagement with the movable part 5212 can also improve the material blocking effect.

[0055] Please continue to combine Figure 1 and Figure 2 Specifically, the transfer device 40 includes a transfer conveying mechanism 41 and a manual sorting platform 42. The transfer conveying mechanism 41 is set on the manual sorting platform 42. The transfer conveying mechanism 41 is also set in correspondence with the sorting machine 10 and the missing material return device 50. It is used to receive the materials sorted by the sorting machine 10 and to transport the missing materials to the missing material return device 50.

[0056] Since a portion of the material sorted by the sorting machine 10 is transported to the finished product warehouse 30 for storage, the other portion of the material actually includes impurities and materials missed by the sorting machine 10. By setting up a manual sorting platform 42, operators can conveniently stand on the manual sorting platform 42 and be located next to the transfer conveyor 41. During the process of the transfer conveyor 41 transporting this portion of material, the operator can sort out the missed materials. Then, the transfer conveyor 41 continues to transport the missed materials to the missed material return device, thereby realizing the sorting and return operation of the missed materials and improving the sorting efficiency.

[0057] It should be noted that when operators sort out the materials that were missed during manual sorting on the sorting platform 42, they only need to remove the impurities from that portion of the material. This allows the missed materials to continue moving and transporting on the transfer conveyor 41. Therefore, to facilitate the recovery and storage of impurities during manual sorting, the material sorting system 100 also includes an impurity bin 70, which is correspondingly set up with the transfer conveyor 41 to receive the impurities on the transfer conveyor 41.

[0058] In this embodiment, since the funnel 51 and the return pipe 53 are both located above the feeding device 20, it is convenient for the missed materials to return to the feeding device 20. Therefore, in order to cooperate with the return of the missed material return device 50, in this embodiment, the transfer conveying mechanism 41 and the manual sorting platform 42 are both located above the sorting machine 10, and also above the feeding device 20. Furthermore, the height of the transfer conveying mechanism 41 and the funnel 51 can be approximately the same, thereby facilitating the transport of the missed materials.

[0059] Therefore, in order to better transport some of the materials sorted by the sorter 10 to the transfer conveying mechanism 41, in this embodiment, the material sorting system 100 further includes a first inclined conveying mechanism 91 and a first horizontal conveying mechanism 92. The first inclined conveying mechanism 91 is arranged at an interval from the transfer conveying mechanism 41, and is also arranged correspondingly to the first horizontal conveying mechanism 92 and the sorter 10, for transporting some of the materials sorted by the sorter 10 to the first horizontal conveying mechanism 92; the first horizontal conveying mechanism 92 is arranged correspondingly to the transfer conveying mechanism 41, for transporting the materials transported by the first inclined conveying mechanism 91 to the transfer conveying mechanism 41.

[0060] By setting the first inclined conveyor 91 and the transfer conveyor 41 at intervals, it is convenient to set up a sorting station on the manual sorting platform 42. That is, the sorting station is located between the first inclined conveyor 91 and the transfer conveyor 41. In this way, it is convenient for the operator to stand on the manual sorting platform 42 and be in the sorting station between the first inclined conveyor 91 and the transfer conveyor 41, so that the material can be easily sorted manually.

[0061] Combination Figure 1 Specifically, the feeding device 20 includes a second horizontal conveying mechanism 21 and a second inclined conveying mechanism 22. The second horizontal conveying mechanism 21 is correspondingly arranged with the missed material return device 50, and the second inclined conveying mechanism 22 is correspondingly arranged with both the second horizontal conveying mechanism 21 and the sorting machine 10. By setting the second horizontal conveying mechanism 21, it can easily correspond to the bottom of the return pipe 53, better receiving the returned missed material. Furthermore, by setting the second inclined conveying mechanism 22, it can easily transport the material to the sorting machine 10, improving material transportation efficiency.

[0062] Furthermore, in this embodiment, the miscellaneous material bin 70 is located on the side of the transfer and conveying mechanism 41 away from the first inclined conveying mechanism 91, which makes it convenient for operators to directly throw the sorted miscellaneous materials from the transfer and conveying mechanism 41 into the miscellaneous material bin 70, thereby improving the sorting efficiency.

[0063] Furthermore, there are multiple miscellaneous material bins 70, which are arranged sequentially along the conveying direction of the transfer conveyor 41. In this way, multiple operators can be arranged separately along the conveying direction of the transfer conveyor 41, so that the materials can be sorted sequentially during the material conveying process, thereby improving the accuracy and efficiency of sorting.

[0064] To facilitate weighing the materials in the miscellaneous material bin 70, in this embodiment, the material sorting system 100 further includes a second weighing device (not shown in the figure), which is disposed in the miscellaneous material bin 70. Similarly, to facilitate weighing the materials in the finished product bin 30, the material sorting system 100 further includes a third weighing device (not shown in the figure), which is disposed in the finished product bin 30.

[0065] In other words, the funnel 51, miscellaneous material bin 70, and finished product bin 30 in this implementation are all equipped with weighing devices. In actual operation, all three weighing devices can be connected to the settlement system, allowing the system to simultaneously acquire weight data from all three devices, facilitating price settlement with customers. Understandably, by multiplying the weight by the daily recycling price of each material and then summing the results, settlement can be immediately made with the customer. Furthermore, the prices of each material can be differentiated, effectively protecting the interests of both buyers and sellers, thereby further improving production and settlement efficiency.

[0066] In addition, in order to facilitate the transportation of the sorted finished materials to the finished product warehouse 30, the material sorting system 100 also includes a pneumatic conveyor 80. One end of the pneumatic conveyor 80 is connected to the sorter 10, and the other end of the pneumatic conveyor 80 is correspondingly set to the finished product warehouse 30, for transporting a portion of the materials sorted by the sorter 10 to the finished product warehouse 30.

[0067] In summary, the embodiments of this utility model provide a material sorting system 100, which includes a sorting machine 10, a feeding device 20, a finished product bin 30, a transfer device 40, and a material return device 50 for materials that have been sorted but not sorted. The feeding device 20 is correspondingly arranged with the sorting machine 10 and is used to transport materials to the sorting machine 10. The finished product bin 30 is correspondingly arranged with the sorting machine 10 and is used to receive a portion of the materials that have been sorted by the sorting machine 10. The transfer device 40 is correspondingly arranged with the sorting machine 10 and is used to receive another portion of the materials that have been sorted by the sorting machine 10. The higher end of the material return device 50 is connected to the transfer device 40, and the lower end of the material return device 50 is connected to the feeding device 20. The material return device 50 is used to receive the material that has been sorted but not sorted from the transfer device 40 and to transport the material that has been sorted but not sorted to the feeding device 20. The feeding device 20 can transport the materials to be sorted to the sorting machine 10. After sorting by the sorting machine 10, a portion of the materials are sorted out and can be recycled and transported to the finished product silo 30 for storage. The other portion of the materials actually includes the materials that were missed by the sorting machine 10. By setting up a transfer device 40, the materials that were missed in this portion of the materials can be sorted out during the transfer process. Then, the materials are returned to the feeding device 20 by the gravitational potential energy of the materials through the missed material return device 50. After that, the missed materials are sorted again by the sorting machine 10 and enter the finished product silo 30.

[0068] It is easy to understand that by setting up this method of returning missed materials, compared to the existing method of putting missed materials into packaging bags or plastic baskets and then transferring and storing them manually or by forklift, there is no need for manual handling or additional transportation equipment, which can improve operational efficiency and reduce production costs.

[0069] The above description is merely a specific embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A material sorting system, characterized in that, include: Sorting machine (10); A feeding device (20) is provided in correspondence with the sorting machine (10) and is used to transport materials to the sorting machine (10); Finished product warehouse (30), which is correspondingly set with the sorting machine (10) and is used to receive a portion of the material after being sorted by the sorting machine (10); A transfer device (40) is provided in correspondence with the sorting machine (10) and is used to receive another part of the material after it has been sorted by the sorting machine (10); as well as The missing material return device (50) is connected to the transfer device (40) at its higher end and to the feeding device (20) at its lower end. The missing material return device (50) is used to receive the missing material transported by the transfer device (40) and transport the missing material to the feeding device (20).

2. The material sorting system according to claim 1, characterized in that, The material return device (50) includes a funnel (51), a baffle structure (52), and a return pipe (53). The inlet of the funnel (51) is correspondingly provided with the transfer device (40). The baffle structure (52) is movably provided with the outlet of the funnel (51) for opening or closing the outlet of the funnel (51). The higher end of the return pipe (53) is connected to the funnel (51), and the lower end of the return pipe (53) is correspondingly provided with the feeding device (20) for returning the material passing through the outlet of the funnel (51) to the feeding device (20).

3. The material sorting system according to claim 2, characterized in that, The funnel (51) and the return pipe (53) are both located above the feeding device (20), and the top of the return pipe (53) is connected to the bottom of the funnel (51), while the bottom of the return pipe (53) is correspondingly positioned to be connected to the feeding device (20); and / or, The filter return device (50) further includes a first weighing device (60), which is disposed in the funnel (51) and is correspondingly disposed with the baffle structure (52).

4. The material sorting system according to claim 2, characterized in that, The baffle structure (52) includes a baffle plate (521), a support plate (522), and a driving member (523). The baffle plate (521) is disposed at the outlet of the funnel (51), the support plate (522) is disposed on the outer side wall of the funnel (51), and the driving member (523) is disposed on the support plate (522) and connected to the baffle plate (521) for driving the baffle plate (521) to open or close the outlet of the funnel (51).

5. The material sorting system according to claim 4, characterized in that, The baffle plate (521) includes a fixed part (5211) and a movable part (5212). The fixed part (5211) is disposed on the inner sidewall of the funnel (51), and the movable part (5212) is rotatably connected to the fixed part (5211). The driving member (523) is connected to the movable part (5212); and / or, The number of the baffle plate (521), the support plate (522), and the driving member (523) are all two. The two baffle plates (521) are arranged opposite to each other at the outlet of the funnel (51), the two support plates (522) are arranged opposite to each other on the outer side wall of the funnel (51), and the two driving members (523) are respectively arranged on the two support plates (522) and respectively connected to the two baffle plates (521).

6. The material sorting system according to claim 1, characterized in that, The transfer device (40) includes a transfer conveying mechanism (41) and a manual sorting platform (42). The transfer conveying mechanism (41) is located on the manual sorting platform (42). The transfer conveying mechanism (41) is also correspondingly located to the sorting machine (10) and the missed material return device (50). It is used to receive the materials sorted by the sorting machine (10) and to transport the missed materials to the missed material return device (50).

7. The material sorting system according to claim 6, characterized in that, The material sorting system (100) also includes a miscellaneous material bin (70), which is correspondingly arranged with the transfer and conveying mechanism (41) and is used to receive miscellaneous materials on the transfer and conveying mechanism (41).

8. The material sorting system according to claim 7, characterized in that, The material sorting system (100) further includes a second weighing device, which is located in the miscellaneous material bin (70).

9. The material sorting system according to claim 6, characterized in that, The transfer and conveying mechanism (41) and the manual sorting platform (42) are both located above the sorting machine (10); The material sorting system (100) further includes a first inclined conveying mechanism (91) and a first horizontal conveying mechanism (92). The first inclined conveying mechanism (91) is spaced apart from the transfer conveying mechanism (41) and is also correspondingly arranged with the first horizontal conveying mechanism (92) and the sorting machine (10). It is used to convey part of the material sorted by the sorting machine (10) to the first horizontal conveying mechanism (92). The first horizontal conveying mechanism (92) is correspondingly arranged with the transfer conveying mechanism (41) and is used to convey the material conveyed by the first inclined conveying mechanism (91) to the transfer conveying mechanism (41).

10. The material sorting system according to claim 1, characterized in that, The material sorting system (100) further includes a third weighing device, which is located in the finished product warehouse (30); and / or, The material sorting system (100) further includes a pneumatic conveyor (80), one end of which is connected to the sorting machine (10), and the other end of which is correspondingly arranged with the finished product bin (30), for conveying a portion of the material sorted by the sorting machine (10) to the finished product bin (30); and / or, The feeding device (20) includes a second horizontal conveying mechanism (21) and a second inclined conveying mechanism (22). The second horizontal conveying mechanism (21) is correspondingly arranged with the missed material return device (50), and the second inclined conveying mechanism (22) is correspondingly arranged with both the second horizontal conveying mechanism (21) and the sorting machine (10).

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