Detecting and sorting device

By introducing a detection and sorting device into the logistics sorting system, and using millimeter-wave detection and rejection machines to automatically classify logistics bags, the problems of low efficiency, low accuracy and lack of traceability in the existing technology are solved, and efficient and accurate detection and classification of logistics bags are achieved.

CN223996677UActive Publication Date: 2026-03-17HUATAI JIGUANG PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-20
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

Existing methods for detecting and sorting logistics bags are inefficient and have low accuracy. Manual bag turning is costly and lacks traceability. Hanging systems have unstable detection accuracy and significant environmental impact.

Method used

The system employs a detection and sorting device, including a conveying assembly, a detection assembly, and a rejection machine. It utilizes millimeter-wave detection equipment and photoelectric switches for visual detection to identify whether any items are left inside the logistics bags, and automatically sorts the logistics bags through the rejection machine.

Benefits of technology

It improves the detection efficiency to 1600 pieces/hour, saves costs, reduces items left in logistics bags, achieves high-accuracy automatic classification, and allows for the traceability of logistics bag information.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a detecting and sorting device, and relates to the technical field of logistics equipment. The utility model provides a detecting and sorting device which comprises a conveying assembly, a detecting assembly and a removing machine. The conveying assembly is used for conveying logistics bags. The detection assembly is located between the input end and the output end of the conveying assembly, and the detection assembly is used for conducting visual detection on the logistics belt to recognize whether articles are left in the logistics bag or not; the removing machine is arranged at the output end of the conveying assembly, and the removing machine and the output end of the conveying assembly are in butt joint or staggered. By arranging the detection assembly and the removing machine, the detection efficiency is improved, the cost is saved, the detection assembly and the removing machine cooperate to automatically classify logistics bags according to the article leaving condition, and sorting work can be completed only by hanging the bags with a small number of workers; meanwhile, the empty bag recognition rate of the logistics bags is improved, and the situation that articles are left in the logistics bags is reduced.
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Description

Technical Field

[0001] This utility model relates to the field of logistics equipment technology, and more specifically, to a detection and sorting device. Background Technology

[0002] Logistics belts are packaging bags used by various logistics and express delivery companies to package small items. They are used extensively in logistics transfer and sorting centers. After the small items are emptied from the logistics belt, there is a certain probability that the small items will remain in the logistics bag. Therefore, various logistics transfer centers currently use manual bag turning to check whether the logistics belt is empty or to check whether there are any residual items in the empty logistics bag by weighing.

[0003] Currently, logistics bags can only be checked manually one by one or confirmed empty by weighing. These methods have the following problems: 1. Manual bag checking is inefficient; each person can only check about 150 empty bags per hour. 2. Manual bag checking requires significant manpower and resources, necessitating approximately 8-10 additional people specifically for bag checking. 3. Manual bag checking has low accuracy; items may still be left behind after manual checking. 4. After manual checking, bags still need to be manually sorted, adding to the workload. 5. There is no way to trace empty bags; if any are missed, there is no way to assign responsibility. 6. Weighing is faster, but less accurate, especially when the remaining contents are lightweight items such as envelopes or foam bags, making it impossible to confirm empty bags by weighing.

[0004] Meanwhile, some transit stations also use suspended inspection and sorting systems, which suspend logistics belts on conveyor components for inspection and sorting. However, using suspended sorting systems presents the following problems: unstable bag shapes lead to low inspection accuracy; residues inside the bags may not reach the bottom, resulting in missed items; and the detection rate is highly susceptible to environmental influences. Utility Model Content

[0005] The purpose of this utility model is to provide a detection and sorting device that can automatically classify logistics bags according to the status of items left behind, while being highly efficient, highly accurate, and traceable.

[0006] The embodiments of this utility model can be implemented as follows:

[0007] In a first aspect, this utility model provides a detection and sorting device, comprising:

[0008] A conveying assembly for conveying logistics bags;

[0009] A detection component is located between the input and output ends of the conveying component. The detection component is used to perform visual inspection on the logistics belt to identify whether there are any items left inside the logistics bag.

[0010] A rejection machine is disposed at the output end of the conveying component, and the rejection machine is either connected to or offset from the output end of the conveying component.

[0011] In an optional embodiment, the detection component includes a millimeter-wave detection device disposed within a detection channel located on the transmission path of the transmission component, the millimeter-wave detection device being used to form a detection image based on millimeter-wave imaging.

[0012] In an optional embodiment, the millimeter-wave detection device is equipped with a photoelectric switch, which is used to detect whether the logistics bag is present on the transmission component in the detection channel.

[0013] In an optional embodiment, the detection assembly further includes a gantry frame, the gantry frame being configured with the detection channel, and the millimeter-wave detection device being disposed within the gantry frame;

[0014] The gantry frame is positioned on the transmission path of the conveying component so that the detection channel is located on the transmission path of the conveying component.

[0015] In an optional implementation, the detection component is communicatively connected to the conveying component and the rejection machine.

[0016] In an optional implementation, the detection component performs visual inspection on the logistics belt. When it identifies that there are items left in the logistics bag, it determines that the logistics bag is an NG bag. The detection component sends a signal to the rejection machine. The rejection machine receives the signal and connects to the output end of the conveying component so that the NG bag is conveyed to the rejection machine by the conveying component.

[0017] In an optional embodiment, the detection and sorting device further includes a receiving unit, which is disposed below the output end of the conveying component.

[0018] In an optional implementation, the detection component performs visual inspection on the logistics belt. When it identifies that no items are left inside the logistics bag, it determines that the logistics bag is an OK bag, and the OK bag is conveyed to the receiving unit by the conveying component.

[0019] In an optional embodiment, the input end of the conveying component is provided with a rolling structure, which is rolled relative to the transmission path of the conveying component.

[0020] In an optional embodiment, the rolling structure includes a fixed seat, a pressure roller, and a rolling part. The fixed seat is connected to the conveying assembly, the two ends of the pressure roller are rotatably connected to the fixed seat, and the rolling part is disposed on the surface of the pressure roller.

[0021] The rolling section includes at least a roller brush.

[0022] The beneficial effects of the detection and sorting device provided in this embodiment of the present invention include:

[0023] By setting up detection components and rejection machines, the detection efficiency is improved. Compared with existing manual bag turning or weighing bag turning, the detection efficiency of this application can reach up to 1600 pieces / hour, which is several times that of manual bag turning or weighing bag turning. It saves costs. The detection components and rejection machines work together to automatically classify logistics bags according to the items left in them. Only a few people are needed to hang the bags to complete the sorting work. At the same time, the empty bag recognition rate of logistics bags is improved, reducing the possibility of items left in logistics bags. Finally, the detection components can also collect millimeter-wave images of logistics bags and judgment information, enabling traceability in the later stage. Attached Figure Description

[0024] 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.

[0025] Figure 1 This is a front view of the detection and sorting device provided in this embodiment;

[0026] Figure 2 This is a top view of the detection and sorting device provided in this embodiment;

[0027] Figure 3 This is a left view of the detection and sorting device provided in this embodiment.

[0028] Icons: 010-Detection and sorting device; 100-Conveying assembly; 110-Rolling structure; 111-Fixed base; 112-Rolling section; 200-Detection assembly; 201-Detection channel; 210-Gantry frame; 220-Millimeter wave detection equipment; 221-Control panel; 300-Rejection machine; 310-Rejection conveyor belt; 400-Receiving unit. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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.

[0032] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during 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, and therefore should not be construed as a limitation of this utility model.

[0033] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0035] The following describes in detail the overall structure, working principle, and technical effects of the detection and sorting device 010 provided by this utility model through embodiments and in conjunction with the accompanying drawings.

[0036] Please refer to Figures 1-3 This utility model provides a high-efficiency, high-accuracy, and traceable detection and sorting device 010, which is applied to the automated sorting equipment of the logistics sorting system to detect residual items in logistics bags.

[0037] Please refer to Figures 1-3This utility model discloses a detection and sorting device 010, including a conveying component 100, a detection component 200, and a rejection machine 300; the conveying component 100 is used to convey logistics bags; the detection component 200 is located between the input end and the output end of the conveying component 100, and the detection component 200 is used to perform visual detection on the logistics belt to identify whether there are any items left in the logistics bags; the rejection machine 300 is disposed at the output end of the conveying component 100, and the rejection machine is connected to or offset from the output end of the conveying component 100.

[0038] Understandably, a logistics bag is placed at the input end of the conveying component 100, which then conveys the bag to the detection component 200 for inspection. The detection component 200 performs visual inspection on the logistics bag. When the detection component 200 detects that an item is left inside the logistics bag, the rejection machine 300 connects to the output end of the conveying component 100, and the conveying component 100 transports the logistics bag to the rejection machine 300, thereby rejecting the logistics bag containing the item. When the detection component 200 detects that no item is left inside the logistics bag, the output ends of the rejection machine 300 and the conveying component 100 are disconnected, and the conveying component 100 transports the logistics bag to the next process, thereby rejecting the logistics bag containing no item.

[0039] The detection and sorting device 010 in this application improves detection efficiency by setting up a detection component 200 and a rejection machine 300. Compared with existing manual bag turning or weighing bag turning, the detection efficiency of this application can reach up to 1600 pieces / hour, which is several times that of manual bag turning or weighing bag turning. It saves costs, as the logistics bags are automatically classified according to the items left behind, and only a few people are needed to hang the bags to complete the sorting work. At the same time, the empty bag recognition rate of the logistics bags is improved, reducing the possibility of items left behind in the logistics bags. Finally, the detection component 200 can also collect millimeter-wave images of the logistics bags and judgment information, making them traceable later.

[0040] In this embodiment, an RFID chip is provided on the logistics bag so that the detection component 200 can identify the logistics bag and facilitate subsequent traceability.

[0041] In this embodiment, the detection and sorting device 010 includes a conveying component 100.

[0042] The conveying component 100 is used to convey the logistics bag.

[0043] In this embodiment, please refer to Figure 1 and Figure 2The conveying assembly 100 includes multiple mounting frames arranged along the conveying path of the conveying assembly 100; each mounting frame is equipped with multiple conveying rollers, which are also arranged along the conveying path of the conveying assembly 100. A drive belt is fitted onto the multiple conveying rollers on a single mounting frame; one of the conveying rollers is connected to the output end of a servo motor to enable the conveyor belt to transport the logistics bag.

[0044] In this embodiment, a rolling structure 110 is provided at the input end of the conveying component 100, and the rolling structure 110 is rolled relative to the conveying path of the conveying component 100. It can be understood that the rolling structure 110 is used to flatten the logistics bag on the conveying component 100 and then convey it forward.

[0045] Alternatively, please refer to Figure 1 The rolling structure 110 includes a fixed seat 111, a pressure roller and a rolling part 112. The fixed seat 111 is connected to the mounting frame of the conveying assembly 100. Both ends of the pressure roller are rotatably connected to the fixed seat 111. The rolling part 112 is disposed on the surface of the pressure roller.

[0046] The rolling section 112 includes at least a roller brush and elastic silicone.

[0047] It is worth mentioning that a transmission component 100 is provided at both the input and output ends of the detection component 200.

[0048] In this embodiment, the detection and sorting device 010 includes a rejection machine 300.

[0049] Please refer to the following in this embodiment: Figure 1 and Figure 2 The rejection machine 300 is located at the output end of the conveying assembly 100, and the rejection machine is either connected to or offset from the output end of the conveying assembly 100. Specifically, the rejection machine 300 is equipped with a liftable rejection conveyor belt 310, which is used to reject logistics bags containing leftover items.

[0050] Understandably, when the detection component 200 detects that there are items left in the logistics bag, the rejection machine 300 lowers the rejection conveyor belt 310 to connect with the output end of the conveying component 100. The conveying component 100 then transports the logistics bag onto the rejection conveyor belt 310 of the rejection machine 300, thereby rejecting the logistics bag containing items. When the detection component 200 detects that there are no items left in the logistics bag, the rejection machine 300 raises the rejection conveyor belt 310 to offset it from the output end of the conveying component 100, so that the conveying component 100 transports the logistics bag to the receiving unit 400 in the next process.

[0051] In this embodiment, the detection and sorting device 010 also includes a receiving unit 400.

[0052] The receiving unit 400 is used to receive logistics bags that do not contain any items.

[0053] In this embodiment, please refer to Figure 2 The receiving unit 400 is vertically arranged with the conveying component 100 located at the output end of the detection component 200, and the receiving unit 400 is located below the output end of the conveying component 100. The receiving unit 400 can be a structure such as a conveyor belt.

[0054] In this embodiment, the detection and sorting device 010 includes a detection component 200.

[0055] The detection component 200 is used to perform visual inspection on the logistics belt to identify whether there are any items left inside the logistics bag.

[0056] In this embodiment, please refer to Figures 1-3 The detection assembly 200 also includes a gantry frame 210, which has a detection channel 201. The millimeter-wave detection device 220 is disposed within the gantry frame 210. The gantry frame 210 is disposed on the transmission path of the transmission assembly 100, so that the detection channel 201 is located on the transmission path of the transmission assembly 100. The gantry frame 210 is disposed between two mounting brackets of the transmission assembly 100.

[0057] In this embodiment, the millimeter-wave detection device 220 is equipped with a photoelectric switch, which is used to detect whether a logistics bag is present on the transmission component 100 within the detection channel 201. The photoelectric switch can be an infrared photoelectric switch.

[0058] In this embodiment, please refer to Figure 3 The detection component 200 includes a millimeter-wave detection device 220, which is housed within the gantry frame 210 and located within a detection channel 201 situated on the transmission path of the transmission component 100. The millimeter-wave detection device 220 is used to form a detection image based on millimeter-wave imaging. Specifically, the millimeter-wave detection device 220 internally includes an embedded control program and a control panel 221. The embedded control program is communicatively connected to the photoelectric switch, the transmission component 100, and the rejection machine 300.

[0059] Among them, the millimeter-wave detection device 220 of the detection component 200 performs visual inspection on the logistics belt. When it is determined that there are no items left in the logistics bag, the logistics bag is judged to be an OK bag. The OK bag is then conveyed to the receiving unit 400 by the conveying component 100.

[0060] Among them, the millimeter-wave detection device 220 of the detection component 200 performs visual detection on the logistics belt. When it identifies that there are items left in the logistics bag, it determines that the logistics bag is an NG bag. The detection component 200 sends a signal to the rejection machine 300. The rejection machine 300 receives the signal and connects it to the output end of the conveying component 100 so that the NG bag is conveyed by the conveying component 100 to the rejection machine 300.

[0061] It is worth mentioning that the embedded control program of the millimeter-wave detection device 220 is connected to the servo motor of the conveyor assembly 100, enabling it to control the power of the servo motor, thereby controlling the start and stop of the conveyor belt and adjusting the speed of the conveyor belt, so that the conveyor assembly 100 can convey the logistics bag to the designated position.

[0062] Understandably, when the conveying component 100 delivers the logistics bag to the detection channel 201, the logistics bag triggers a photoelectric switch. The photoelectric switch sends a signal to the embedded control program. Upon receiving the signal, the embedded control program activates the millimeter-wave detection device 220 to perform visual inspection of the logistics bag. The millimeter-wave detection device 220 images the logistics bag, and the embedded control program analyzes and identifies the image using a recognition algorithm, providing feedback based on different recognition results. Specifically, the millimeter-wave detection device 220 determines whether there are any leftover items inside the logistics bag. If no items are left, it is classified as an OK bag; if items are left, it is classified as an NG bag. The determination result is displayed on the control screen, and the RFID reader is called to read the RFID chip of the current logistics bag, obtaining the RFID chip information. The image, RFID information, and image determination results are integrated and added to the database.

[0063] The working principle and process of the detection and sorting device 010 provided in this embodiment of the utility model are as follows:

[0064] The logistics bag is placed at the input end of the conveying component 100, which then conveys the logistics bag to the detection component 200 for detection. When the conveying component 100 conveys the logistics bag into the detection channel 201, the logistics bag triggers a photoelectric switch. The photoelectric switch sends a signal to the embedded control program. The embedded control program receives the signal and causes the millimeter-wave detection device 220 to perform visual detection on the logistics bag.

[0065] Among them, the millimeter-wave detection device 220 of the detection component 200 performs visual inspection on the logistics belt. When it is determined that there are no items left in the logistics bag, the logistics bag is judged to be an OK bag. The OK bag is then conveyed to the receiving unit 400 by the conveying component 100.

[0066] In this system, the millimeter-wave detection device 220 of the detection component 200 performs visual inspection of the logistics belt. When it identifies items left inside a logistics bag, it determines the logistics bag to be an NG bag. The detection component 200 sends a signal to the rejection machine 300. The rejection machine 300 receives the signal and lowers the rejection conveyor belt 310, aligning it with the output end of the conveying component 100, so that the NG bag is conveyed by the conveying component 100 to the rejection machine 300. After the rejection machine 300 completes its operation, the rejected logistics bag can be manually checked for any items. Then, the checked logistics bag is placed back on the input end of the conveying component 100 for re-inspection, thus completing the detection process.

[0067] In summary, the detection and sorting device 010 provided in this embodiment of the present invention improves detection efficiency by setting up the detection component 200 and the rejection machine 300. Compared with the existing manual bag turning or weighing bag turning, the detection efficiency of this application can reach up to 1600 pieces / hour, which is several times that of manual bag turning or weighing bag turning. It saves costs, as the logistics bags are automatically classified according to the items left behind, and only a few people are needed to hang the bags to complete the sorting work. At the same time, the empty bag recognition rate of the logistics bags is improved, reducing the possibility of items left behind in the logistics bags. Finally, the detection component 200 can also collect millimeter-wave images of the logistics bags and judgment information, making them traceable in the later stages.

[0068] The above are merely specific embodiments of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model.

Claims

1. A detection sorting device, characterized in that, The application relates to a detection and sorting device for a logistics bag. The device comprises a conveying assembly for conveying a logistics bag, a detection assembly for visually detecting the logistics bag to identify whether there is an article left in the logistics bag, and a rejector arranged at an output end of the conveying assembly. The detection assembly comprises a millimeter wave detection device arranged in a detection channel arranged on a conveying path of the conveying assembly. The millimeter wave detection device is provided with a photoelectric switch for detecting whether the logistics bag is present on the conveying assembly in the detection channel.

2. The detection sorting device according to claim 1, characterized in that The detection assembly further comprises a gate-shaped frame arranged with the detection channel and the millimeter wave detection device arranged in the gate-shaped frame.

3. The detection sorting device according to claim 2, characterized in that The gate-shaped frame is arranged on the conveying path of the conveying assembly so that the detection channel is arranged on the conveying path of the conveying assembly.

4. The detection and sorting apparatus of claim 2, wherein, The detection assembly is communicatively connected with the conveying assembly and the rejector. When the detection assembly visually detects the logistics bag and identifies that there is an article left in the logistics bag, the detection assembly judges that the logistics bag is an NG bag, sends a signal to the rejector, and the rejector receives the signal and is opposite to the output end of the conveying assembly so that the NG bag is conveyed to the rejector by the conveying assembly.

5. The detection and sorting apparatus of claim 1, wherein, The detection and sorting device further comprises a receiving unit arranged below the output end of the conveying assembly.

6. The detection sorting device according to claim 5, characterized in that When the detection assembly visually detects the logistics bag and identifies that there is no article left in the logistics bag, the detection assembly judges that the logistics bag is an OK bag, and the OK bag is conveyed to the receiving unit by the conveying assembly.

7. The detection and sorting apparatus of claim 5, wherein, The input end of the conveying assembly is provided with a rolling structure which is arranged to roll relative to the conveying path of the conveying assembly.

8. The detection sorting device according to claim 7, characterized in that The rolling structure comprises a fixed seat connected with the conveying assembly, a pressure roller rotatably connected with the fixed seat at both ends, and a rolling part arranged on the surface of the pressure roller.

9. The detection and sorting apparatus of claim 1, wherein, The rolling part at least comprises a roller brush.

10. The detection sorting device according to claim 9, characterized in that ​ ​