A multi-modal optoelectronic imaging device and control device

Abstract

The present application relates to the technical field of multi-modal photoelectric imaging equipment, and particularly relates to a multi-modal photoelectric imaging equipment and a control device. The technical scheme comprises a rack, a conveying device, a detection system and a feeding acceleration mechanism. The detection system integrates a hyperspectral imaging camera, a high-resolution industrial camera and an X-ray fluorescence spectrometer probe controlled by a synchronous driving mechanism. The present application drives the probe and the material on the conveying belt to move synchronously through the synchronous driving mechanism, realizes the X-ray fluorescence fixed-point precision measurement of the material on the continuous production line without stopping, and solves the industry problem of the contradiction between different modal sensors and the movement speed of the material. At the same time, the designed feeding acceleration mechanism uses negative pressure adsorption and an independent acceleration belt to ensure that the material is smoothly fed at a stable speed and accurate interval, avoiding the interference of inconsistent initial state on subsequent synchronous detection.

Description

Technical Field

[0001] This invention relates to the field of multimodal optoelectronic imaging equipment technology, and in particular to a multimodal optoelectronic imaging equipment and control equipment. Background Technology

[0002] Multimodal optoelectronic imaging equipment is a core product of modern precision testing technology, fundamentally driven by the limitations of single-sensor technologies. In industries, scientific research, and medicine, the need for understanding observed objects has expanded from surface morphology to include internal structure, chemical composition, and functional state—multidimensional information. Therefore, integrating two or more imaging technologies based on different physical principles onto a unified platform to achieve synchronous information acquisition and complementary fusion constitutes multimodal optoelectronic imaging equipment. By providing multidimensional data integrating spatial, spectral, elemental, and physical properties, these devices enable applications in high-end manufacturing, biomedicine, materials science, and environmental monitoring, achieving a transition from qualitative judgment to quantitative analysis, and from offline sampling to online full inspection.

[0003] However, multimodal integration is not simply a matter of stacking hardware; its technical implementation faces severe challenges. Take, for example, a typical industrial inspection device integrating a hyperspectral imaging camera, a high-resolution industrial camera, and an X-ray fluorescence spectrometer probe. There is a fundamental contradiction in the material movement speed requirements of each mode: the hyperspectral and industrial cameras require continuous and rapid material flow to achieve efficient large-area scanning; while the X-ray fluorescence spectrometer, to obtain accurate elemental quantitative data, requires the probe and measurement point to remain relatively stationary or at extremely low speeds to ensure sufficient signal integration time and spatial positioning accuracy. This conflict between motion and stillness directly restricts the overall detection efficiency and reliability of the system, becoming a key bottleneck for the technology's large-scale industrial application. Summary of the Invention

[0004] The purpose of this invention is to address the problem in the prior art that hyperspectral and industrial cameras and X-ray fluorescence spectrometers have different effects on the material movement speed, and to propose a multimodal optoelectronic imaging device and control device.

[0005] On one hand, this application proposes a multimodal optoelectronic imaging device, including a frame and a conveying device mounted on the frame, and further including:

[0006] The detection system is mounted on a frame and includes a hyperspectral imaging camera, a high-resolution industrial camera, and two sets of X-ray fluorescence spectrometer probes connected to the frame via a synchronous drive mechanism. The synchronous drive mechanism drives the X-ray fluorescence spectrometer probes to move synchronously with the material on the conveying device.

[0007] The feeding acceleration mechanism is mounted on the frame and includes a power component, an adsorption component and a gas conveying component fixedly mounted on the power component via a connector. The power component drives the material on the connector to move, and the gas conveying component provides negative pressure to the cyclically moving adsorption component.

[0008] Optionally, the synchronous drive mechanism includes a support frame and a drive component. The support frame supports the X-ray fluorescence spectrometer probe, and the drive component drives the X-ray fluorescence spectrometer probe to move synchronously with the conveying device.

[0009] Optionally, the support frame includes a guide shaft fixedly mounted on the frame, a first slider slidably mounted on the guide shaft, a guide rod fixedly mounted on the first slider, a second slider slidably mounted on the guide rod, and a connecting plate fixedly mounted on the second slider, wherein the X-ray fluorescence spectrometer probe is fixedly connected to the connecting plate.

[0010] Optionally, the driving component includes a synchronous belt and a first motor mounted on the frame. The output shaft of the first motor is coaxially and fixedly connected to one of the pulleys of the synchronous belt. A traction rod is fixedly mounted on the synchronous belt, and a support rod is fixedly mounted on the second slider. The traction rod is rotatably connected to the support rod.

[0011] Optionally, the power assembly includes two support drive belts mounted on the frame, the pulleys of the two support drive belts being coaxially and fixedly connected via a drive shaft, and a second motor being fixedly mounted on the frame, the output shaft of the second motor being coaxially and fixedly connected to one of the pulleys of the support drive belts.

[0012] Optionally, the adsorption assembly includes an adsorption box fixedly installed on the connector, a vacuum chamber is formed inside the adsorption box, and multiple suction heads are fixedly installed on the adsorption box, with the suction heads communicating with the vacuum chamber.

[0013] Optionally, the gas delivery assembly includes a connecting box fixedly installed on the frame and a side baffle fixedly installed on one side of the connecting box via a connecting column. An installation groove is provided between the side baffle and the connecting box. A sealing plate is slidably installed in the installation groove. A negative pressure chamber is formed between the sealing plate, the side baffle, and the connecting box. A gas pipe is fixedly installed on the adsorption box. The other end of the gas pipe is connected to the negative pressure chamber. A delivery pipe is connected to the negative pressure chamber. The other end of the delivery pipe is connected to a gas pump system.

[0014] Optionally, when the adsorption box is located above the supporting conveyor belt, the height of the suction head is higher than the conveying device; when the adsorption box is located below the supporting conveyor belt, the suction head is lower than the conveying device.

[0015] Optionally, the conveying device includes two conveyor belts mounted on a frame, the pulleys of the two conveyor belts being fixedly connected by a shaft, and a third motor being fixedly mounted on the frame, the output shaft of the third motor being coaxially and fixedly connected to one of the pulleys of the conveyor belts.

[0016] On the other hand, this application proposes a control device applied to the multimodal photoelectric imaging device described above, including a synchronous encoder connected to the pulley of the conveyor belt for real-time acquisition of material position and speed signals, a motor driver group electrically connected to the first motor, the second motor and the third motor respectively, a negative pressure control unit electrically connected to the air pump system in the gas conveying assembly for controlling the negative pressure start and stop of the adsorption assembly, and a central controller communicatively connected to the synchronous encoder, the motor driver group and the negative pressure control unit, wherein the synchronous encoder, the motor driver group and the negative pressure control unit are controlled by the central controller.

[0017] Compared with the prior art, this application includes at least one of the following beneficial technical effects:

[0018] This application effectively solves the fundamental contradiction between high-speed general survey and low-speed precision measurement in multimodal photoelectric imaging by using a synchronous drive mechanism and a feeding acceleration mechanism. It achieves precise synchronization between the probe and the moving material during X-ray fluorescence spectroscopy detection, thereby enabling the main conveyor line to run continuously at a uniform speed while ensuring high accuracy and high signal-to-noise ratio in elemental quantitative analysis, which greatly improves the overall detection efficiency and production cycle.

[0019] The accelerated feeding design ensures that materials enter the detection system at a uniform spacing and stable speed, fundamentally eliminating positioning errors caused by uncertainties in the feeding process and guaranteeing the reliability and repeatability of fully automatic continuous detection. Attached Figure Description

[0020] Figure 1 Schematic diagram of the structure of a multimodal optoelectronic imaging device Figure 1 ;

[0021] Figure 2 Schematic diagram of the structure of a multimodal optoelectronic imaging device Figure 2 ;

[0022] Figure 3 This is a schematic diagram of the synchronous drive mechanism;

[0023] Figure 4 for Figure 3 A magnified view of a section at point A in the middle;

[0024] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0025] Figure 6This is a schematic diagram showing the location of the conveying device;

[0026] Figure 7 This is a schematic diagram of the conveying device.

[0027] Figure 8 Schematic diagram of the feeding acceleration mechanism Figure 1 ;

[0028] Figure 9 Schematic diagram of the feeding acceleration mechanism Figure 2 ;

[0029] Figure 10 This is a schematic diagram of the gas delivery assembly.

[0030] Reference numerals: 1. Frame;

[0031] 2. Detection system; 21. Hyperspectral imaging camera; 22. High-resolution industrial camera; 23. X-ray fluorescence spectrometer probe;

[0032] 3. Synchronous drive mechanism; 31. Support frame; 311. Guide shaft; 312. First slider; 313. Guide rod; 314. Second slider; 315. Connecting plate;

[0033] 32. Drive component; 321. Synchronous belt; 322. First motor; 323. Traction rod; 324. Support rod;

[0034] 4. Conveying device; 41. Conveyor belt; 42. Third motor; 43. Shaft;

[0035] 5. Feeding acceleration mechanism; 51. Power assembly; 511. Support belt for transmission belt; 512. Drive shaft; 513. Second motor;

[0036] 52. Connector;

[0037] 53. Adsorption assembly; 531. Adsorption box; 532. Vacuum chamber; 533. Suction head;

[0038] 54. Gas delivery assembly; 541. Connecting box; 542. Connecting column; 543. Side baffle; 544. Mounting groove; 545. Sealing plate; 546. Delivery pipe; 547. Gas pipe; 548. Negative pressure chamber. Detailed Implementation

[0039] The following specific examples illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, unless otherwise specified, the following embodiments and features described therein can be combined with each other.

[0040] Example: Figure 1 , Figure 2 , Figure 6 , Figure 7 As shown, the present invention proposes a multimodal photoelectric imaging device, including a frame 1 and a conveying device 4 mounted on the frame 1. The conveying device 4 includes two conveyor belts 41 mounted on the frame 1. The pulleys of the two conveyor belts 41 are fixedly connected by a shaft 43. A third motor 42 is fixedly mounted on the frame 1. The output shaft of the third motor 42 is coaxially and fixedly connected to one of the pulleys of the conveyor belts 41. After the third motor 42 is started, it drives the pulley coaxial with its output shaft to rotate. This rotation is synchronously transmitted to the pulley of the other conveyor belt 41 through the shaft 43, thereby driving the two conveyor belts 41 to rotate in the same direction at the same speed. The material to be detected is placed on the surface of the conveyor belts 41 and moves forward at a uniform speed with the conveyor belts 41 by friction, completing the transfer between the detection stations.

[0041] like Figure 2 and Figure 3 As shown, this embodiment also includes a detection system 2 mounted on the frame 1. The detection system includes a hyperspectral imaging camera 21, a high-resolution industrial camera 22, and two sets of X-ray fluorescence spectrometer probes 23 connected to the frame 1 via a synchronous drive mechanism 3. The synchronous drive mechanism 3 drives the X-ray fluorescence spectrometer probes 23 to move synchronously with the material on the conveying device 4.

[0042] The hyperspectral imaging camera 21 is used to quickly acquire chemical composition distribution maps of materials and identify organic pollutants, moisture, and fiber state; the high-resolution industrial camera 22 provides high-definition color images of the material surface to capture physical defects, color anomalies, and macroscopic impurities; and the core function of the X-ray fluorescence spectrometer probe 23 is to perform point-to-point excitation of materials and accurately detect the types and contents of heavy metal elements by analyzing the generated characteristic X-ray fluorescence. Together, they constitute a comprehensive and multi-dimensional detection system from macroscopic morphology and chemical distribution to elemental composition.

[0043] In traditional integrated solutions, the X-ray fluorescence spectrometer probe 23 requires sufficient signal integration time, necessitating that the probe and the detection point remain relatively stationary. This forces the entire conveyor line to frequently start and stop, severely slowing down the detection cycle. The synchronous drive mechanism 3 is designed to solve this fundamental contradiction. By driving the X-ray fluorescence spectrometer probe 23 to achieve precise synchronous movement with the material moving below during the measurement period, it enables high signal-to-noise ratio measurements to be completed in a relatively stationary state. This allows the conveyor device 4 to remain operational without stopping, allowing the material to flow continuously. The X-ray fluorescence spectrometer probe 23 can then dynamically track and detect suspicious points, thereby significantly improving overall detection efficiency and production cycle while ensuring detection accuracy.

[0044] like Figures 2 to 5 As shown, in this embodiment, the synchronous drive mechanism 3 includes a support frame 31 and a drive component 32. The support frame 31 supports the X-ray fluorescence spectrometer probe 23, and the drive component 32 drives the X-ray fluorescence spectrometer probe 23 to move synchronously with the conveying device 4.

[0045] Furthermore, the support frame 31 includes a guide shaft 311 fixedly mounted on the frame 1, a first slider 312 slidably mounted on the guide shaft 311, a guide rod 313 fixedly mounted on the first slider 312, a second slider 314 slidably mounted on the guide rod 313, and a connecting plate 315 fixedly mounted on the second slider 314. The X-ray fluorescence spectrometer probe 23 is fixedly connected to the connecting plate 315. The various components constitute a precise two-dimensional sliding support system. The guide shaft 311 provides a precise track for the first slider 312 to slide along the material conveying direction, ensuring the straightness of synchronous movement. The guide rod 313 fixed on the first slider 312 is perpendicular to the guide shaft 311, providing an adjustment track for the second slider 314 perpendicular to the conveying direction. The connecting plate 315 finally fixes the X-ray fluorescence spectrometer probe 23 on the second slider 314.

[0046] The probe is precisely positioned in two degrees of freedom in the horizontal plane to align with any detection point on the material. Through a rigid guide structure, it is ensured that the emission window of the X-ray fluorescence spectrometer probe 23 is always perpendicular to the material surface during synchronous movement, avoiding fluctuations in excitation and reception efficiency due to angle changes and ensuring consistency of measurement conditions.

[0047] Furthermore, the drive unit 32 includes a synchronous belt 321 and a first motor 322 mounted on the frame 1. The output shaft of the first motor 322 is coaxially and fixedly connected to one of the pulleys of the synchronous belt 321. A traction rod 323 is fixedly mounted on the synchronous belt 321, and a support rod 324 is fixedly mounted on the second slider 314. The traction rod 323 is rotatably connected to the support rod 324. The first motor 322 performs precise speed and position control according to the speed signal of the conveyor belt 41, driving the synchronous belt 321 to circulate. The traction rod 323 fixed on the synchronous belt 321 moves accordingly and transmits power to the support frame 31 system through the rotatable connection with the support rod 324, ultimately driving the X-ray fluorescence spectrometer probe 23 to perform synchronous reciprocating linear motion in the direction of the guide shaft 311.

[0048] It achieves direct and efficient linear drive, and with the help of servo motor control, it can quickly respond to and accurately match the speed changes of the conveyor belt 41, so that the probe and the material can achieve high-precision speed synchronization and position locking within the detection window, creating a dynamic and stable relative static condition for high-quality X-ray fluorescence measurement.

[0049] As one implementation method, such as Figures 6-10 As shown, the multimodal photoelectric imaging device of this embodiment also includes a feeding acceleration mechanism 5 mounted on the frame 1. The feeding acceleration mechanism 5 includes a power component 51, an adsorption component 53 fixedly mounted on the power component 51 via a connector 52, and a gas conveying component 54. The power component 51 drives the material on the connector 52 to move. The gas conveying component 54 provides negative pressure to the adsorption component 53 which is moving in a cycle. When feeding sheet materials with small weight, different surface friction coefficients, or uneven mass at high speed, the material is placed on the running conveyor belt 41. Since the initial speed is zero, it is accelerated by static friction only, which may cause the material to slip or accelerate slowly. As a result, the material spacing is uneven, and the time point when it enters the detection area is difficult to predict.

[0050] For X-ray fluorescence spectrometer probe 23, which relies on periodic synchronous motion, random offset of the initial position of the material can cause the probe tracking program to malfunction, making it impossible to accurately align with the preset detection point, thus leading to missed detections or false detections.

[0051] The above defects can be solved by the feeding acceleration mechanism 5. With the negative pressure provided by the adsorption component 53, the material is instantly and firmly grasped. The power component 51 then accelerates the material to a speed that is exactly the same as that of the conveyor belt 41 before the material comes into contact with the main conveyor belt 41. This ensures that the material is delivered to the conveying device 4 smoothly with a precise initial spacing and speed, eliminating all subsequent positioning errors caused by the uncertainty of the initial acceleration section, thereby ensuring the reliability and accuracy of synchronous detection. Only a compact acceleration unit needs to be added at the beginning of the conveyor line, without having to modify the long main conveyor belt 41 itself to improve acceleration performance. The solution is simple and efficient.

[0052] Furthermore, the power assembly 51 includes two support drive belts 511 mounted on the frame 1. The pulleys of the two support drive belts 511 are coaxially and fixedly connected through a drive shaft 512. A second motor 513 is fixedly mounted on the frame 1. The output shaft of the second motor 513 is coaxially and fixedly connected to one of the pulleys of the support drive belt 511. The second motor 513 drives one of the pulleys of the support drive belt 511, and the power is synchronously transmitted to the other support drive belt 511 through the drive shaft 512, ensuring that the two belts run synchronously. The adsorption assembly 53 is suspended and fixed between the two support drive belts 511 through the connector 52, and moves cyclically with them. This provides the adsorption assembly 53 and the material it grabs with an independent and controllable acceleration track parallel to the main conveyor belt 41. By precisely controlling the speed of the second motor 513, it can be ensured that the speed of the material at the release point is perfectly matched with the speed of the main conveyor belt 41, achieving a smooth handover with zero relative speed.

[0053] The adsorption component 53 includes an adsorption box 531 fixedly installed on the connector 52. A vacuum chamber 532 is formed inside the adsorption box 531. Multiple suction heads 533 are fixedly installed on the adsorption box 531 and are connected to the vacuum chamber 532. When the gas delivery component 54 provides negative pressure to the vacuum chamber 532, suction force is generated at the multiple suction heads 533, thereby firmly adsorbing and fixing the material covering it. This provides a flexible and evenly distributed gripping method that can adapt to slight unevenness of the material surface and ensures that the material will not slide, tilt or fall during acceleration, making the gripping stable and reliable.

[0054] Furthermore, the gas delivery assembly 54 includes a connecting box 541 fixedly mounted on the frame 1, and a side baffle 543 fixedly mounted on one side of the connecting box 541 via a connecting column 542. An installation groove 544 is provided between the side baffle 543 and the connecting box 541. A sealing plate 545 is slidably installed in the installation groove 544. A negative pressure chamber 548 is formed between the sealing plate 545, the side baffle 543, and the connecting box 541. A gas pipe 547 is fixedly mounted on the adsorption box 531. The other end of the gas pipe 547 communicates with the negative pressure chamber 548. A delivery pipe 546 is connected inside the negative pressure chamber 548. The other end of the delivery pipe 546 is connected to an air pump system. The sealing plate 543... 45 can slide in the mounting groove 544. The sealing plate 545 closes the mounting groove 544, forming a sealed negative pressure chamber 548 together with the side baffle 543 and the connecting box 541. The air pump system draws air from the chamber through the delivery pipe 546 to generate negative pressure. This negative pressure is transmitted to the vacuum chamber 532 of the adsorption box 531 through the air pipe 547, thereby generating suction force in the suction head 533. When the material needs to be released after acceleration, the negative pressure in the negative pressure chamber 548 is released through the air pump system, and the suction force disappears. This realizes a negative pressure supply mechanism that is linked to the movement trajectory of the adsorption component 53 and can be started and stopped on demand. Energy is only consumed during the working phase, which is efficient and controllable.

[0055] It is worth noting that when the adsorption box 531 is above the supporting conveyor belt 511, the height of the suction head 533 is higher than that of the conveying device 4. When the adsorption box 531 is below the supporting conveyor belt 511, the suction head 533 is lower than that of the conveying device 4. When the adsorption box 531 moves with the supporting conveyor belt 511 to the upper arc section, the suction head 533 is in a high position, which facilitates the grabbing of the material to be accelerated from the loading position. After grabbing the material, the adsorption box 531 moves downward with the conveyor belt. Before reaching the same horizontal plane as the main conveyor belt 41, the material has been accelerated to the target speed. When the adsorption box 531 moves to the lower arc section, the position of the suction head 533 is lower than the surface of the main conveyor belt 41. At this time, the gas conveying component 54 cuts off the negative pressure, and the material falls naturally and smoothly on the synchronously running conveyor belt 41 under the action of gravity, completing the handover without impact. Subsequently, the empty adsorption box 531 continues to cycle back to the loading position, ready for the next grabbing.

[0056] On the other hand, this application proposes a control device for use in the above-mentioned multimodal photoelectric imaging device, including a synchronous encoder connected to the pulley of the conveyor belt 41 for real-time acquisition of material position and speed signals, a motor driver group electrically connected to the first motor 322, the second motor 513 and the third motor 42 respectively, a negative pressure control unit electrically connected to the air pump system in the gas conveying assembly 54 for controlling the negative pressure start and stop of the adsorption assembly 53, and a central controller communicatively connected to the synchronous encoder, the motor driver group and the negative pressure control unit, wherein the synchronous encoder, the motor driver group and the negative pressure control unit are controlled by the central controller;

[0057] As the core of the system, the central controller receives synchronous encoder signals from the conveyor device 4 and calculates the material position in real time. It sends instructions to the driver of the third motor 42 to maintain the conveyor belt 41 at a uniform speed and drives the synchronous belt 321 through the first motor driver, so that the X-ray fluorescence spectrometer probe 23 achieves precise speed synchronization and position locking with the target material within the detection window, realizing high-quality measurement with dynamic relative stillness. At the same time, the central controller coordinates the second motor driver and the air pump system to control the coordinated actions of the feeding acceleration mechanism in the stages of grabbing, accelerating and releasing materials, ensuring that the material is smoothly transferred to the conveyor belt 41 in a posture without relative speed. Through the above-mentioned multi-axis coordination and real-time closed-loop control, this control device fundamentally solves the problem of conflicting requirements of different modal sensors for material motion state, and achieves continuous and efficient detection without stopping the entire line while ensuring the quantitative accuracy of X-ray fluorescence spectroscopy.

[0058] In this embodiment, the material to be tested, such as recycled pulp board, is first processed by the feeding acceleration mechanism 5. The power component 51 drives the adsorption component 53 to circulate. When the adsorption box 531 reaches the feeding position, the gas conveying component 54 is activated, generating negative pressure in the negative pressure chamber 548. This negative pressure is transmitted to the vacuum chamber 532 of the adsorption box 531 through the air pipe 547, causing multiple suction heads 533 to firmly adsorb the material. Subsequently, the second motor 513 drives the support transmission belt 511, accelerating the adsorbed material to the same speed as the main conveyor belt 41. When the adsorption box 531 moves to the bottom and the suction heads 533 are below the surface of the conveyor belt 41, the negative pressure is released, and the material falls smoothly onto the uniformly moving conveyor belt 41 at zero relative speed, completing precise feeding. The material then enters the detection area, where the fixedly installed hyperspectral imaging camera 2... 1. A high-resolution industrial camera 22 rapidly scans the continuously passing materials to obtain their chemical composition distribution map and surface morphology image, completing the initial screening. When the system identifies a suspicious area, the control equipment issues a command, and the synchronous drive mechanism 3 is immediately started. The first motor 322 drives the synchronous belt 321, which drives the support frame 31 to move through the traction rod 323 and the support rod 324. The support frame 31 is composed of a guide shaft 311, a first slider 312, a guide rod 313 and a second slider 314, which guides the X-ray fluorescence spectrometer probe 23 to move precisely along the connecting plate 315, so that it achieves speed synchronization and position locking with the suspicious points on the material below during the detection window period. Fixed-point excitation is performed in a dynamic relative static state to obtain accurate quantitative information of heavy metal elements. The entire process does not require the conveying device 4 to stop.

[0059] The above specific embodiments are merely several optional embodiments of the present invention. Based on the technical solutions of the present invention and the relevant teachings of the above embodiments, those skilled in the art can make various alternative improvements and combinations to the above specific embodiments.

Claims

1. A multimodal optoelectronic imaging device, comprising a frame (1) and a conveying device (4) mounted on the frame (1), characterized in that, Also includes: The detection system (2) is installed on the frame (1). The detection system includes a hyperspectral imaging camera (21), a high-resolution industrial camera (22) fixedly installed on the frame (1), and two sets of X-ray fluorescence spectrometer probes (23) connected to the frame (1) through a synchronous drive mechanism (3). The synchronous drive mechanism (3) drives the X-ray fluorescence spectrometer probes (23) to move synchronously with the material on the conveying device (4). The feeding acceleration mechanism (5) is installed on the frame (1). The feeding acceleration mechanism (5) includes a power component (51), an adsorption component (53) fixedly installed on the power component (51) through a connector (52), and a gas conveying component (54). The power component (51) drives the material on the connector (52) to move, and the gas conveying component (54) provides negative pressure to the adsorption component (53) that is moving in a cycle.

2. The multimodal photoelectric imaging device according to claim 1, characterized in that, The synchronous drive mechanism (3) includes a support frame (31) and a drive component (32). The support frame (31) supports the X-ray fluorescence spectrometer probe (23), and the drive component (32) drives the X-ray fluorescence spectrometer probe (23) to move synchronously with the conveying device (4).

3. The multimodal photoelectric imaging device according to claim 2, characterized in that, The support frame (31) includes a guide shaft (311) fixedly mounted on the frame (1), a first slider (312) slidably mounted on the guide shaft (311), a guide rod (313) fixedly mounted on the first slider (312), a second slider (314) slidably mounted on the guide rod (313), and a connecting plate (315) fixedly mounted on the second slider (314). The X-ray fluorescence spectrometer probe (23) is fixedly connected to the connecting plate (315).

4. The multimodal photoelectric imaging device according to claim 3, characterized in that, The drive unit (32) includes a timing belt (321) and a first motor (322) mounted on the frame (1). The output shaft of the first motor (322) is coaxially and fixedly connected to one of the pulleys of the timing belt (321). A traction rod (323) is fixedly mounted on the timing belt (321). A support rod (324) is fixedly mounted on the second slider (314). The traction rod (323) is rotatably connected to the support rod (324).

5. A multimodal photoelectric imaging device according to claim 4, characterized in that, The power assembly (51) includes two support drive belts (511) mounted on the frame (1), and the pulleys of the two support drive belts (511) are coaxially and fixedly connected through a drive shaft (512). A second motor (513) is fixedly mounted on the frame (1), and the output shaft of the second motor (513) is coaxially and fixedly connected to one of the pulleys of the support drive belts (511).

6. A multimodal photoelectric imaging device according to claim 5, characterized in that, The adsorption assembly (53) includes an adsorption box (531) fixedly installed on the connector (52), a vacuum chamber (532) is formed inside the adsorption box (531), and a plurality of suction heads (533) are fixedly installed on the adsorption box (531), and the suction heads (533) are in communication with the vacuum chamber (532).

7. A multimodal photoelectric imaging device according to claim 6, characterized in that, The gas delivery assembly (54) includes a connecting box (541) fixedly installed on the frame (1) and a side baffle (543) fixedly installed on one side of the connecting box (541) via a connecting column (542). An installation groove (544) is provided between the side baffle (543) and the connecting box (541). A sealing plate (545) is slidably installed in the installation groove (544). A negative pressure chamber (548) is formed between the sealing plate (545), the side baffle (543) and the connecting box (541). A gas pipe (547) is fixedly installed on the adsorption box (531). The other end of the gas pipe (547) is connected to the negative pressure chamber (548). A delivery pipe (546) is connected in the negative pressure chamber (548). The other end of the delivery pipe (546) is connected to a gas pump system.

8. A multimodal photoelectric imaging device according to claim 7, characterized in that, When the adsorption box (531) is above the supporting conveyor belt (511), the height of the suction head (533) is higher than that of the conveying device (4). When the adsorption box (531) is below the supporting conveyor belt (511), the suction head (533) is lower than that of the conveying device (4).

9. A multimodal photoelectric imaging device according to claim 8, characterized in that, The conveying device (4) includes two conveyor belts (41) mounted on the frame (1). The pulleys of the two conveyor belts (41) are fixedly connected by a shaft (43). A third motor (42) is fixedly mounted on the frame (1). The output shaft of the third motor (42) is coaxially fixedly connected to one of the pulleys of the conveyor belts (41).

10. A control device, applied to the multimodal photoelectric imaging device of claim 9, characterized in that, The system includes a synchronous encoder connected to the pulley of the conveyor belt (41) for real-time acquisition of material position and speed signals; a motor driver group electrically connected to the first motor (322), the second motor (513), and the third motor (42) respectively; a negative pressure control unit electrically connected to the air pump system in the gas conveying assembly (54) for controlling the negative pressure start and stop of the adsorption assembly (53); and a central controller communicatively connected to the synchronous encoder, the motor driver group, and the negative pressure control unit. The synchronous encoder, the motor driver group, and the negative pressure control unit are controlled by the central controller.

Images