Detection device

Abstract

The utility model relates to a detection device, which comprises a first transmission line, a second transmission line, a detection mechanism, a rejection mechanism and an alarm mechanism, and is characterized in that the second transmission line is located at one side of the first transmission line; the detection mechanism is located on one side of the first transmission line and comprises a processing module and an image acquisition module, the image acquisition module faces materials on the first transmission line, the processing module is electrically connected with the image acquisition module, and the processing module sends out a rejection signal when the image acquisition module identifies that the materials have defects; the rejecting mechanism is located on one side of the first transmission line, the rejecting mechanism is electrically connected with the processing module, and the rejecting mechanism moves the materials from the first transmission line to the second transmission line when receiving the rejecting signal; and the alarm mechanism is located on one side of the second transmission line and comprises a first sensor and an alarm module, the first sensor sends out a signal when recognizing that the materials on the second transmission line are fully loaded, and the alarm module sends out an alarm signal after receiving the signal sent by the first sensor.

Description

Technical Field

[0001] This application relates to the field of conveying and transfer technology, and in particular to a detection device. Background Technology

[0002] In the production process, after the finished cigarette cartons are sealed in the carton sealing machine, they are transported to the elevator entrance via a chain conveyor. The chain elevator then lifts them to the second-floor sorting line, where they are conveyed to the corresponding sorting lanes. At the lanes, robotic arms stack the cartons into pre-defined piles. Finally, a shuttle car and a stacker crane work together to deliver the cartons to their designated storage locations in the warehouse. During this process, if a cigarette carton is damaged and the cigarette packs fall from the elevator, it can cause the elevator chain or chain plate to jam. If it falls from the sorting line conveyor, it can affect the photoelectric detection system, causing products to enter the wrong sorting lane. If it falls during the robotic stacking process, it can cause the stacks to tilt and fall, damaging the finished product. If it falls from the stacker crane, it can cause the stacker crane to malfunction, severely impacting production efficiency.

[0003] The appearance inspection of cigarette boxes generally relies on manual inspection, but manual inspection has problems such as high labor costs, low inspection efficiency, and inconsistent inspection and judgment standards. Utility Model Content

[0004] Therefore, it is necessary to provide a detection device that can improve detection efficiency to address the aforementioned technical problems.

[0005] An embodiment of the first aspect of this application provides a detection device, including a first transmission line, a second transmission line, a detection mechanism, a rejection mechanism, and an alarm mechanism. The second transmission line is located on one side of the first transmission line. The detection mechanism is located on one side of the first transmission line and includes a processing module and an image acquisition module. The image acquisition module faces the material on the first transmission line. The processing module is electrically connected to the image acquisition module. When the image acquisition module detects a defect in the material, the processing module issues a rejection signal. The rejection mechanism is located on one side of the first transmission line and is electrically connected to the processing module. When the rejection mechanism receives a rejection signal, it moves the material from the first transmission line to the second transmission line. The alarm mechanism is located on one side of the second transmission line and includes a first sensor and an alarm module. The first sensor issues a signal when it detects that the material on the second transmission line is fully loaded. The alarm module is electrically connected to the first sensor and issues an alarm signal after receiving the signal from the first sensor.

[0006] In one embodiment, a first transmission line extends along a first direction, a second transmission line extends along a second direction, and the first and second directions are intersected; a detection mechanism and a rejection mechanism are spaced apart along the first direction.

[0007] In one embodiment, the rejection mechanism includes: a roller; a lifting module connected to the roller, the lifting module having a lifting state and a lowering state. In the lifting state, the lifting module drives the roller to lift along the height direction so that the top of the roller is higher than the transmission surface of the first transmission line; in the lowering state, the lifting module drives the roller to lower along the height direction so that the top of the roller is lower than the transmission surface of the first transmission line. The first direction, the second direction, and the height direction are arranged to intersect each other.

[0008] In one embodiment, the rejection mechanism further includes a first driving member connected to the roller, the first driving member being used to drive the roller to rotate so that when the top of the roller is higher than the transmission surface of the first transmission line, it drives the material from the first transmission line to the second transmission line.

[0009] In one embodiment, there are two first transmission lines, which are spaced apart along a second direction, and the roller is located between the two first transmission lines.

[0010] In one embodiment, the lifting module includes: a lever, which includes a first segment, a connecting segment, and a second segment arranged sequentially, the connecting segment having a rotating shaft, and the second segment being connected to a roller; and a second driving member connected to the first segment. In the lifting state, the second driving member drives the first segment to descend along the height direction, so that the second segment drives the roller to rise along the height direction; in the descending state, the second driving member drives the first segment to rise along the height direction, so that the second segment drives the roller to descend along the height direction.

[0011] In one embodiment, there are multiple image acquisition modules, with at least two image acquisition modules located on opposite sides of the first transmission line in the second direction.

[0012] In one embodiment, the detection mechanism further includes a light source module facing the first transmission line.

[0013] In one embodiment, it further includes: a separation mechanism located on one side of the first transmission line, and the separation mechanism and the rejection mechanism are located on different sides of the detection mechanism; the separation mechanism includes a baffle and a third driving member, the third driving member being connected to the baffle for driving the baffle to lift, and when the baffle is lifted, it blocks the material at a first preset position on the first transmission line from moving along the first transmission line.

[0014] In one embodiment, the separation mechanism further includes: a second sensor facing the first transmission line; the second sensor sends a signal to a third drive member when it detects that material is passing through a first preset position on the first transmission line; when the third drive member receives the signal from the second sensor, it drives a baffle to lift up to prevent material at the first preset position from moving along the first transmission line.

[0015] The detection device provided in this application, by setting up a detection mechanism including an image acquisition module and a processing module, automatically detects materials using the image acquisition module and performs detection using the processing module, replacing manual detection, reducing labor costs and improving the detection efficiency of the device. By setting up a rejection mechanism, which moves materials from the first conveyor line to the second conveyor line upon receiving a rejection signal from the processing module, defective materials are rejected from the first conveyor line, reducing the impact of defective materials on subsequent transfer processes and thus improving material production efficiency. By setting up an alarm mechanism, an alarm signal is issued when the second conveyor line is full, prompting personnel to handle the situation promptly and avoid affecting production efficiency. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments of this application or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a detection device according to some embodiments of this application.

[0018] Figure 2 A partially enlarged schematic diagram of an example detection device is shown.

[0019] Figure 3 A schematic diagram of an example detection device is shown after the second transmission line is hidden.

[0020] Figure 4 A schematic diagram of the front view of an example detection device after the second transmission line is hidden is shown.

[0021] Figure label:

[0022] 10. Detection device;

[0023] 100. First transmission line;

[0024] 200. Second transmission line;

[0025] 300. Testing institution; 310. Image acquisition module; 320. Light source module;

[0026] 400, Rejection mechanism; 410, Roller; 420, Lifting module; 421, Lever; 4211, First section; 4212, Connecting section; 4213, Second section; 422, Second drive component; 430, First drive component; 440, Fourth sensor;

[0027] 500. Separation mechanism; 510. Baffle; 520. Third drive component; 530. Second sensor;

[0028] x, first direction; y, second direction; z, altitude direction. Detailed Implementation

[0029] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0030] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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 application.

[0031] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0032] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0033] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0034] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0035] The detection device provided in the embodiments of this application will now be described with reference to the accompanying drawings. In the drawings, for ease of drawing, the dimensions shown are not necessarily proportional to the actual dimensions.

[0036] Please refer to Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of a detection device according to some embodiments of this application. Figure 2 A partially enlarged schematic diagram of an example detection device is shown.

[0037] like Figure 1 and Figure 2As shown, this application provides a detection device 10, including a first transmission line 100, a second transmission line 200, a detection mechanism 300, a rejection mechanism 400, and an alarm mechanism (not shown). The second transmission line 200 is located on one side of the first transmission line 100. The detection mechanism 300 is located on one side of the first transmission line 100 and includes a processing module (not shown) and an image acquisition module 310. The image acquisition module 310 faces the material (not shown) on the first transmission line 100. The processing module is electrically connected to the image acquisition module 310, and issues a rejection signal when the image acquisition module 310 detects a defect in the material. The rejection mechanism 400 is located on one side of the first transmission line 100 and is electrically connected to the processing module. When the rejection mechanism 400 receives a rejection signal, it moves the material from the first transmission line 100 to the second transmission line 200. The alarm mechanism is located on one side of the second transmission line 200. The alarm mechanism includes a first sensor and an alarm module. The first sensor sends a signal when it detects that the material on the second transmission line 200 is fully loaded. The alarm module is electrically connected to the first sensor and sends an alarm signal after receiving the signal from the first sensor.

[0038] Optionally, the first transmission line 100 and the second transmission line 200 are at least one of the following forms: chain transmission line, chain plate transmission line, roller transmission line, belt transmission line, suction belt transmission line, etc., used to transfer materials on the transmission line from one end to the other. In this embodiment, the material is a smoke box, and this embodiment uses the first transmission line 100 as a chain plate transmission line and the second transmission line 200 as a roller transmission line for illustration.

[0039] Optionally, the image acquisition module 310 is a camera, and the processing module is a microprocessor or a PLC (Programmable Logic Controller). Images of the material captured by the image acquisition module 310 are transmitted to the processing module, which identifies defect features in the material images and determines whether the material captured by the image acquisition module 310 is a good product. Furthermore, the processing module includes a model training unit, which performs deep learning on the acquired material images to obtain a material detection model. The material detection model continuously corrects its defects as the image data captured by the image acquisition module 310 in the detection device 10 accumulates, thereby improving the detection accuracy of the detection device 10. Defect features include, but are not limited to, damage to the material's outer packaging, creases, and deformation.

[0040] It should be noted that the image recognition model in the processing module of this embodiment can be any image recognition model from related technologies, and the model training unit in the processing module can also be any model training unit from related technologies, as long as it can achieve the above functions, such as using the PP-LCNet network. The processing module can adjust the rejection criteria by setting a score threshold and a veto type of defect, and can also improve the accuracy of the processing module's judgment by further importing defect sample examples.

[0041] Optionally, the second transmission line 200 is used to store materials with appearance defects, and the first sensor is a photoelectric sensor or an infrared sensor. When the second transmission line 200 is full of defective materials, that is, when there is also material placed on the second transmission line 200 facing the first sensor, the first sensor sends a signal to the alarm module. The alarm module can be a buzzer and / or an LED light. When the alarm module is a buzzer, the alarm signal emitted by the alarm module is an audible signal; when the alarm module is an LED light, the alarm signal emitted by the alarm module is a visual signal. In addition, the alarm signal can also be a wired or wireless signal, directly transmitted by the alarm module to the worker's smart device to remind the worker that the second transmission line 200 is full.

[0042] The detection device 10 of this application embodiment includes a detection mechanism 300, which comprises an image acquisition module 310 and a processing module. The image acquisition module 310 captures images of the material, and the processing module performs automated detection, replacing manual detection, reducing labor costs and improving the detection efficiency of the device 10. A rejection mechanism 400 is included, which moves the material from the first transmission line 100 to the second transmission line 200 upon receiving a rejection signal from the processing module. This ensures that defective material is rejected from the first transmission line 100, reducing the impact of defective material on subsequent transfer processes and thus improving material production efficiency. An alarm mechanism is also included, which issues an alarm signal when the second transmission line 200 is fully loaded, prompting staff to handle the situation promptly and avoid impacting production efficiency.

[0043] In some embodiments, the detection device 10 further includes a separation mechanism 500, which is located on one side of the first transmission line 100, and the separation mechanism 500 and the rejection mechanism 400 are located on different sides of the detection mechanism 300. The separation mechanism 500 includes a baffle 510 and a third driving member 520, which is connected to the baffle 510 to drive the baffle 510 to lift. When the baffle 510 is lifted, it prevents material at a first preset position on the first transmission line 100 from moving along with the first transmission line 100.

[0044] Optionally, the third drive unit 520 can be a cylinder or an electric motor.

[0045] Optionally, the separation mechanism 500 further includes a second sensor 530, which faces the first transmission line 100. When the second sensor 530 detects material passing through a first preset position, it sends a signal to the third drive unit 520. Upon receiving the signal from the second sensor 530, the third drive unit 520 drives the baffle 510 to lift, thereby preventing material at the first preset position from moving along the first transmission line 100. The second sensor 530 is a photoelectric sensor or an infrared sensor. The first preset position is the very front end of the first transmission line 100, meaning that when material has just moved from the previous process to the first transmission line 100, it is identified by the second sensor 530 and stopped by the baffle 510 at the first preset position. The first preset position can be understood as the material loading position on the first transmission line 100.

[0046] Optionally, the third drive unit 520 may include a timer, or the separation mechanism 500 may further include a timer electrically connected to the third drive unit 520. The timer is used to control the baffle 510 to descend after it is raised and held for a certain period of time, so that the material at the first preset position can continue to move along the first transmission line 100, thereby isolating the continuously transferred material and adjusting the spacing between adjacent materials on the first transmission line 100 as well as adjusting the detection cycle.

[0047] Optionally, the separation mechanism 500 also includes a barcode scanner (not shown), which faces a first preset position and is used to identify barcodes on the material. The scanner is electrically connected to the processing module and is used to send the specification information of the material to be inspected to the processing module. The processing module contains multiple material model libraries of different specifications, allowing the processing module to select the corresponding model library after receiving information from the scanner, and to apply different defect judgment standards for different specifications of materials. This enables the detection device 10 to detect materials of different specifications, expanding the application scenarios of the detection device 10.

[0048] In some embodiments, the first transmission line 100 extends along a first direction (x direction in the figure), and the second transmission line 200 extends along a second direction (y direction in the figure), with the first direction x and the second direction y intersecting; the detection mechanism 300 and the rejection mechanism 400 are spaced apart along the first direction x.

[0049] Optionally, there may be multiple image acquisition modules 310, with at least two image acquisition modules 310 located on either side of the first transmission line 100 in the second direction y. The image acquisition modules 310 located on either side of the first transmission line 100 are used to acquire images of different areas on the material. Each image acquisition module 310 is electrically connected to the processing module.

[0050] Optionally, the number of image acquisition modules 310 is four, with two image acquisition modules 310 respectively located on both sides of the first transmission line 100 in the second direction y. All image acquisition modules 310 face a second preset position on the first transmission line 100, and each image acquisition module 310 has a different shooting angle, used to achieve image acquisition of the left, right, front, back, and top surfaces of the material. The second preset position can be understood as the material detection position on the first transmission line 100.

[0051] Optionally, the testing mechanism 300 also includes a light source module 320, which faces a second preset position on the first transmission line 100. The light source module 320 is used to illuminate the material on the first transmission line 100, improve the image quality acquired by the image acquisition module 310, and thus improve the testing accuracy of the testing mechanism 300.

[0052] Optionally, both the light source module 320 and the image acquisition module 310 are electrically connected to the timer in the separation mechanism 500, so that the light source module 320 and the image acquisition module 310 can be activated when the material moves from the first preset position to the second preset position.

[0053] Optionally, the detection mechanism 300 also includes a human-machine interface module. The barcode scanner, processing module, image acquisition module 310, light source module 320, and rejection mechanism 400 are all electrically connected to the human-machine interface module. The human-machine interface module has a display screen and a full set of operation buttons, which can display the coding information, image acquisition information, and detection results of the materials on the first transmission line 100, and also allow users to control the start and stop of the light source module 320, image acquisition module 310, and rejection mechanism 400 through the human-machine interface module.

[0054] During the inspection process at the inspection mechanism 300, the first conveyor line 100 remains operational, and the material at the second preset position continues to move along the first conveyor line 100. The processing module completes the inspection before the material reaches the rejection mechanism 400. When the material is defective, the processing module sends a rejection signal to the rejection mechanism 400, which then moves the defective material from the first conveyor line 100 to the second conveyor line 200. When the material is not defective, the processing module does not send a signal to the rejection mechanism 400, the rejection mechanism 400 does not start, and the material continues to be transferred along the first conveyor line 100 to the subsequent production line.

[0055] The detection device 10 of this application embodiment uses multiple image acquisition modules 310 to collect images from multiple surfaces of the material, reducing blind spots and improving the detection accuracy. A light source module 320 illuminates the material at a second preset position, improving the image quality acquired by the image acquisition modules 310 and thus increasing the detection accuracy of the detection mechanism 300. A third sensor activates the image acquisition modules 310 and the light source module 320 only when material is present at the second preset position, saving energy and reducing detection costs. Simultaneously, the third sensor can also be linked with the third driving component 520 to jointly adjust the material spacing and detection cycle on the first transmission line 100.

[0056] In other embodiments, the detection mechanism 300 may further include a third sensor (not shown), which may be a photoelectric sensor or an infrared sensor. The third sensor faces a second preset position on the first transmission line 100, and is electrically connected to the image acquisition module 310 and the light source module 320. When the third sensor detects material at the second preset position, it controls the light source module 320 and the image acquisition module 310 to start.

[0057] Optionally, the third sensor is electrically connected to the third drive unit 520. When the material leaves the second preset position, the third sensor sends a signal to the third drive unit 520. After receiving the signal from the third sensor, the third drive unit 520 drives the baffle 510 to descend, causing the material located at the first preset position to move along the first transmission line 100.

[0058] Please refer to Figures 1 to 4 , Figure 3 A schematic diagram of an example detection device is shown after the second transmission line is hidden. Figure 4 A schematic diagram of the front view of an example detection device after the second transmission line is hidden is shown.

[0059] like Figures 1 to 4 As shown, in some embodiments, the rejection mechanism 400 includes a roller 410 and a lifting module 420 connected to the roller 410. The lifting module 420 has a lifting state and a lowering state. In the lifting state, the lifting module 420 drives the roller 410 to rise along the height direction (the z-direction in the figure) so that the top of the roller 410 is higher than the transmission surface of the first transmission line 100. In the lowering state, the lifting module 420 drives the roller 410 to fall along the height direction so that the top of the roller 410 is lower than the transmission surface of the first transmission line 100. The first direction x, the second direction y, and the height direction z are arranged in pairs.

[0060] Optionally, the rejection mechanism 400 further includes a first driving member 430, which is connected to the roller 410. The first driving member 430 drives the roller 410 to rotate, so that when the top of the roller 410 is higher than the transmission surface of the first transmission line 100, it moves the material from the first transmission line to the second transmission line 200. The position on the first transmission line 100 corresponding to the roller 410 is a third preset position, which is connected to the second transmission line 200. This can be understood as the material rejection position on the first transmission line 100.

[0061] Optionally, the rejection mechanism 400 further includes a fourth sensor 440, which faces a third preset position on the first transmission line 100. When defective material moves to a second preset position, the fourth sensor 440 sends a signal to the first drive unit 430 and the lifting module 420. The first drive unit 430 and the lifting module 420 are then activated, moving the defective material at the second preset position from the first transmission line 100 to the second transmission line 200.

[0062] Optionally, the first driving component 430 is a motor, and the first driving component 430 is connected to the roller 410 via a belt (not shown). A transmission roller may also be provided between the first driving component 430 and the roller 410 as needed.

[0063] Optionally, there are two first conveyor lines 100, spaced apart along the second direction y, with the roller 410 located between them. There is a certain gap between the two first conveyor lines 100. When material is placed on a first conveyor line 100, its left and right sides overlap the two lines, while the middle is suspended, allowing the roller 410 to rise from the middle of the two lines when lifted. Furthermore, when material is transferred on the first conveyor lines 100, the transfer speed of the two lines is the same.

[0064] Optionally, the lifting module 420 includes a lever 421 and a second driving member 422. The lever 421 includes a first section 4211, a connecting section 4212, and a second section 4213 arranged sequentially. The connecting section 4212 is provided with a rotating shaft, which is rotatably connected to the base. The second section 4213 is connected to the roller 410. The second driving member 422 is connected to the first section 4211. In the lifting state, the second driving member 422 drives the first section 4211 to descend along the height direction z, so that the second section 4213 drives the roller 410 to rise along the height direction z. In the descending state, the second driving member 422 drives the first section 4211 to rise along the height direction z, so that the second section 4213 drives the roller 410 to descend along the height direction z. The second driving member 422 is a cylinder, and it is mounted on a fixed base. The driving rod of the second driving member 422 is connected to the first section 4211. The second driving component 422 and the first driving component 430 are both electrically connected to the judgment module and are used to start after receiving the rejection signal sent by the judgment module and move the defective material located at the second preset position from the first transmission line 100 to the second transmission line 200.

[0065] Of course, in other embodiments, the second drive member 422 can also be directly connected to the roller 410, directly driving the roller 410 to lift in the lifting state and directly driving the roller 410 to lower in the lowering state.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this application should be determined by the appended claims.

Claims

1. A detection device, characterized in that, include: First transmission line; The second transmission line is located on one side of the first transmission line; The detection mechanism is located on one side of the first transmission line. The detection mechanism includes a processing module and an image acquisition module. The image acquisition module faces the material on the first transmission line. The processing module is electrically connected to the image acquisition module. When the image acquisition module detects that the material is defective, the processing module issues a rejection signal. A rejection mechanism is located on one side of the first transmission line. The rejection mechanism is electrically connected to the processing module. When the rejection mechanism receives the rejection signal, it moves the material from the first transmission line to the second transmission line. An alarm mechanism is located on one side of the second transmission line. The alarm mechanism includes a first sensor and an alarm module. The first sensor emits a signal when it detects that the material on the second transmission line is fully loaded. The alarm module is electrically connected to the first sensor and emits an alarm signal after receiving the signal emitted by the first sensor.

2. The detection device according to claim 1, characterized in that, The first transmission line extends along a first direction, and the second transmission line extends along a second direction, with the first direction and the second direction intersecting each other; the detection mechanism and the rejection mechanism are spaced apart along the first direction.

3. The detection device according to claim 2, characterized in that, The rejection mechanism includes: Roller; A lifting module is connected to the roller. The lifting module has a lifting state and a lowering state. In the lifting state, the lifting module drives the roller to rise along the height direction so that the top of the roller is higher than the transmission surface of the first transmission line. In the lowering state, the lifting module drives the roller to fall along the height direction so that the top of the roller is lower than the transmission surface of the first transmission line. The first direction, the second direction, and the height direction are arranged to intersect each other.

4. The detection device according to claim 3, characterized in that, The rejection mechanism also includes: A first driving member is connected to the roller. The first driving member is used to drive the roller to rotate so that when the top of the roller is higher than the transmission surface of the first transmission line, the material is moved from the first transmission line to the second transmission line.

5. The detection device according to claim 3, characterized in that, The number of the first transmission lines is two, and the two first transmission lines are spaced apart along the second direction, with the roller located between the two first transmission lines.

6. The detection device according to claim 3, characterized in that, The lifting module includes: A lever, comprising a first section, a connecting section, and a second section arranged sequentially, wherein the connecting section is provided with a pivot, and the second section is connected to the roller; A second driving member, connected to the first segment, drives the first segment to descend along the height direction in the lifting state, so that the second segment drives the roller to lift along the height direction; in the descending state, the second driving member drives the first segment to lift along the height direction, so that the second segment drives the roller to descend along the height direction.

7. The detection device according to claim 2, characterized in that, The number of image acquisition modules is multiple, with at least two image acquisition modules located on both sides of the first transmission line in the second direction.

8. The detection device according to claim 7, characterized in that, The testing institution also includes: The light source module faces the first transmission line.

9. The detection device according to claim 1, characterized in that, Also includes: A separation mechanism is located on one side of the first transmission line, and the separation mechanism and the rejection mechanism are located on different sides of the detection mechanism; the separation mechanism includes a baffle and a third driving member, the third driving member being connected to the baffle for driving the baffle to lift, and when the baffle is lifted, it prevents the material at a first preset position on the first transmission line from moving along the first transmission line.

10. The detection device according to claim 9, characterized in that, The separation mechanism further includes: The second sensor is positioned facing the first transmission line. When the second sensor detects that the material is passing through a first preset position on the first transmission line, it sends a signal to the third driving member. When the third driving member receives the signal from the second sensor, it drives the baffle to lift up, thereby preventing the material at the first preset position from moving along the first transmission line.

Images