X-ray foreign matter detector
By introducing a movable emission source and an electromagnet system into the X-ray inspection machine, the problem of low imaging resolution caused by a fixed X-ray source height is solved, enabling flexible inspection and clear imaging of different foods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGBO BAOSHENG AGRICULTURAL DEVELOPMENT CO LTD
- Filing Date
- 2025-05-23
- Publication Date
- 2026-05-12
AI Technical Summary
In existing X-ray inspection machines, the X-ray source is fixed at a height during food inspection, resulting in low imaging resolution and an inability to meet the inspection needs of different types of packaged foods.
By setting up a movable transmitter and overlapping blocks, combined with electromagnets and distance sensors, the position and height of the transmitter are automatically adjusted to adapt to different food widths, ensuring comprehensive detection and clear imaging.
It enables flexible adjustment of the emission source position and height during the detection process, improving the clarity of the image and the comprehensiveness of the detection.
Smart Images
Figure CN224231665U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of detection equipment technology, specifically to an X-ray foreign object detection machine. Background Technology
[0002] X-ray inspection machines are commonly used in medical and security inspections, and are now also used for food inspection. Utilizing the strong penetrating power and imaging principle of X-rays, they can detect not only tiny metal particles or fine lines that metal detectors cannot detect, but also non-metallic foreign objects (such as glass, stones, hard bones, hard plastics, rubber, etc.) that metal detectors cannot identify.
[0003] In existing X-ray inspection machines, the food to be inspected is usually laid flat on the surface of a conveyor belt during food inspection. The X-ray source of the inspection machine is set at the top, and the detector is set at the bottom of the conveyor belt. The height of the X-ray source is basically determined by the width of the object to be irradiated. It does not need to be set too high as long as coverage is guaranteed. Setting it too high can easily lead to low resolution during imaging. Therefore, when inspecting different types of packaged food, the X-ray source of the inspection machine in a fixed position cannot guarantee clear imaging. In view of this, we propose an X-ray foreign object detection machine. Utility Model Content
[0004] Technical problems to be solved
[0005] To address the aforementioned shortcomings of existing technologies, this invention provides an X-ray foreign object detection machine. This machine effectively solves the problem that existing X-ray detection machines, during food inspection, typically require the food to be inspected to be laid flat on a conveyor belt, with the X-ray source positioned on the upper side and the detector on the lower side of the conveyor belt. Furthermore, the height of the X-ray source is largely determined by the width of the object to be irradiated; it doesn't need to be set too high as long as coverage is ensured. Setting it too high can easily lead to low imaging resolution. When inspecting different types of packaged food, the fixed position of the X-ray source in this machine cannot guarantee clear imaging.
[0006] Technical solution
[0007] To achieve the above objectives, this utility model provides the following technical solution:
[0008] This utility model provides an X-ray foreign object detection machine, including a frame, a conveyor belt on the upper side of the frame, and a fixing block fixedly installed on the side wall of the frame, with an overlapping block movably connected inside the fixing block;
[0009] A receiver is fixedly installed on the lower side of the frame, and a mounting bracket is movably connected to the upper side of the frame. A transmitter is movably connected to the mounting bracket.
[0010] In addition, a limiting frame is used to limit the movement trajectory of the mounting frame and is fixedly installed on the frame. The limiting frame has a sliding groove, and multiple electromagnets are evenly laid on the inner wall of the sliding groove. It also includes magnetic blocks fixedly connected to both ends of the mounting frame. When the electromagnet is energized, it will magnetically attract the magnetic blocks.
[0011] Furthermore, the fixed block has a cavity inside, the overlapping block is movably connected inside the cavity, and the fixed block is provided with a connecting pipe that communicates with the cavity.
[0012] Furthermore, it also includes a distance sensor fixedly installed at the end of the overlap block; the distance sensor is used to measure the distance between the overlap block and the side wall of the frame in the direction perpendicular to the conveyor belt.
[0013] Furthermore, it also includes a connecting plate fixedly installed on the outer wall of the limit frame. The lower end of the connecting plate is provided with a vertical pipe that is in communication with the connecting pipe. A piston pipe is fixedly installed on the upper side of the connecting plate. A piston rod is movably connected inside the piston pipe. The upper end of the piston rod extends through the piston pipe to the upper position where a movable plate is fixedly installed. Metal sheets are laid linearly and at equal intervals on the outer wall of the limit frame. When the movable plate contacts different metal sheets, electromagnets of different heights are connected to the power supply, thereby adjusting the height of the mounting frame in the vertical direction.
[0014] Furthermore, it also includes a rotating shaft rotatably connected inside the mounting bracket, the rotating shaft being fixedly connected to the transmitter, and sealing plates being fixedly installed on both ends of the rotating shaft; and cylindrical components sleeved at both ends of the rotating shaft, the cylindrical components having a cavity inside, the outer wall of the sealing plate slidingly engaging with the inner wall of the cavity, and the cavity being connected to the output end of an external air pump via a hose.
[0015] Beneficial effects
[0016] The technical solution provided by this utility model, compared with the known public technology, has the following advantages:
[0017] Beneficial effects:
[0018] This invention, through the provision of a movable emission source and the use of a connecting block movably attached to the frame, allows for flexible adjustment of the emission source's position when detecting different foods, thereby improving image clarity while ensuring comprehensive detection. Attached Figure Description
[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is a schematic diagram of the overall structure of the testing machine of this utility model;
[0021] Figure 2 This is a schematic diagram of the overall exploded structure of the testing machine of this utility model;
[0022] Figure 3 This is a schematic diagram of the structure of the frame and the overlapping block of this utility model when they are separated;
[0023] Figure 4 This is a schematic diagram of the explosion structure at the launch source of this utility model.
[0024] The labels in the diagram represent:
[0025] 100. Frame; 110. Conveyor belt; 120. Fixing block; 121. Cavity; 130. Limiting frame; 131. Electromagnet; 132. Metal sheet;
[0026] 200. Overlapping block; 210. Distance sensor;
[0027] 300, Receiver;
[0028] 400. Piston tube; 410. Vertical tube; 420. Moving plate;
[0029] 500, Mounting bracket; 510, Magnetic block; 520, Rotating shaft; 521, Sealing plate; 530, Cylindrical component; 531, Chamber; 532, Flexible hose; 540, Transmitter. Detailed Implementation
[0030] 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, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.
[0031] The present invention will be further described below with reference to the embodiments.
[0032] Example: Refer to Appendix Figure 1-4As shown, an X-ray foreign object detection machine includes a frame 100, a conveyor belt 110 on the upper side of the frame 100, a receiver 300 fixedly installed on the lower side of the frame 100, and a mounting frame 500 movably connected to the upper side of the frame 100, with an emission source 540 movably connected to the mounting frame 500. Specifically, in the actual food inspection process, the food to be inspected is placed on the upper side of the conveyor belt 110, and the conveyor belt 110 is used to effectively transport the food. During the transport process, the emission source 540 located on the upper side of the frame 100 and the receiver 300 located on the lower side of the frame 100 are used to detect the food on the conveyor belt 110.
[0033] However, it should be mentioned that in actual use, the width of the food on the conveyor belt 110 is random. For food of different widths placed on the conveyor belt 110, in order to ensure the clarity of the subsequent imaging, the height of the emission source 540 needs to be flexibly adjusted. To ensure comprehensive food detection while maintaining the clarity of the subsequent imaging, this application also includes a fixing block 120 fixedly installed on the side wall of the frame 100. The fixing block 120 has an overlapping block 200 movably connected inside it. The mounting bracket 500 has a cavity 121, and the overlapping block 200 is movably connected inside the cavity 121. The fixing block 120 is provided with a connecting pipe that communicates with the cavity 121. The mounting bracket 500 is fixedly installed on the frame 100 to limit its movement trajectory. The fixing bracket 130 has a sliding groove, and a plurality of electromagnets 131 are evenly distributed on the inner wall of the sliding groove. The mounting bracket 500 also includes magnetic blocks 510 fixedly connected to both ends of the mounting bracket 500. When the electromagnets 131 are energized, they will magnetically attract the magnetic blocks 510.
[0034] Specifically, to ensure the accuracy of the detection results and the clarity of subsequent imaging, the height of the transmitter 540, which is positioned on the upper side of the frame 100, is adjustable in this application. Specifically, it also includes a connecting plate fixedly installed on the outer wall of the limiting frame 130. The lower end of the connecting plate is provided with a vertical pipe 410 that communicates with the connecting pipe. A piston pipe 400 is fixedly installed on the upper side of the connecting plate. A piston rod is movably connected inside the piston pipe 400. The upper end of the piston rod extends through the piston pipe 400 to a fixed position on the upper side where a movable plate 420 is installed. Additionally, metal sheets 132 are linearly and evenly spaced on the outer wall of the limiting frame 130. When the movable plate 420 contacts different metal sheets 132, electromagnets 131 at different heights are connected to the power supply, thereby adjusting the vertical height of the mounting frame 500.
[0035] When food is placed on the upper side of the conveyor belt 110, the overlapping blocks 200, which are movably connected to the frame 100 and located on both sides of the conveyor belt 110, will adjust their positions according to the different widths of the food. Specifically, the outer wall of the overlapping block 200 will contact the outer wall of the food. In this state, the overlapping block 200 will adjust its position relative to the frame 100. In particular, when the overlapping block 200 slides in the cavity 121, the gas in the cavity 121 will enter the interior of the vertical pipe 410 through the connecting pipe, and cause the moving plate 420, which is movably connected in the piston pipe 400, to adjust its position in the vertical direction.
[0036] As one implementation method, in this application, when the movable plate 420, which is fixedly connected to the piston rod, is adjusted in the vertical direction, the movable plate 420 will contact metal plates 132 of different heights provided on the outer wall of the limiting frame 130, thereby energizing different electromagnets 131 on the limiting frame 130, and thus adjusting the mounting frame 500 to different heights in the vertical direction. When the width of the food on the conveyor belt 110 is different, the height of the corresponding emission source 540 will also be adjusted, thereby ensuring the clarity of subsequent imaging while ensuring that the food can be fully covered for detection.
[0037] Furthermore, in the actual testing process, the food on the conveyor belt 110 will be closer to one side. To ensure comprehensive testing, the angle of the emission source 540 is also adjusted in this application. Specifically, it also includes a distance sensor 210 fixedly installed at the end of the overlapping block 200. The distance sensor 210 is used to measure the distance between the overlapping block 200 and the side wall of the frame 100 in a direction perpendicular to the conveyor belt 110. It also includes a rotating shaft 520 rotatably connected inside the mounting frame 500. The rotating shaft 520 is fixedly connected to the emission source 540, and sealing plates 521 are fixedly installed at both ends of the rotating shaft 520. It also includes a cylindrical component 530 sleeved at both ends of the rotating shaft 520. The cylindrical component 530 has a chamber 531 inside. The outer wall of the sealing plate 521 slides against the inner wall of the chamber 531. The chamber 531 is connected to the output end of an external air pump through a hose 532. In actual use, when two overlapping blocks 200 in relative positions detect a change in the distance between themselves and the side wall of the frame 100, and one overlapping block 200 detects an increase in the distance between itself and the side wall of the frame 100 while the other overlapping block 200 detects a decrease in the distance between itself and the side wall of the frame 100, gas will be injected into the chamber 531 that is connected to the cylindrical component 530, thereby driving the rotating shaft 520 and the emission source 540 to rotate synchronously, so as to achieve comprehensive detection of the food.
[0038] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.
Claims
1. An X-ray foreign object detection machine, characterized in that, include: The frame (100) has a conveyor belt (110) on its upper side and also includes a fixing block (120) fixedly installed on the side wall of the frame (100). An overlapping block (200) is movably connected inside the fixing block (120). A receiver (300) is fixedly installed on the lower side of the frame (100), and a mounting bracket (500) is movably connected to the upper side of the frame (100). A transmitter (540) is movably connected to the mounting bracket (500). In addition, a limiting frame (130) is used to limit the movement trajectory of the mounting frame (500) and is fixedly installed on the frame (100). The limiting frame (130) has a sliding groove, and multiple electromagnets (131) are evenly laid on the inner wall of the sliding groove. It also includes a magnetic block (510) fixedly connected to both ends of the mounting frame (500). When the electromagnet (131) is energized, it will magnetically attract the magnetic block (510).
2. The X-ray foreign object detection machine according to claim 1, characterized in that, The fixed block (120) has a cavity (121) inside, the overlapping block (200) is movably connected inside the cavity (121), and the fixed block (120) is provided with a connecting pipe that is in communication with the cavity (121).
3. The X-ray foreign object detection machine according to claim 2, characterized in that, It also includes a distance sensor (210) fixedly installed at the end of the overlapping block (200); The distance sensor (210) is used to measure the distance between the overlap block (200) and the side wall of the frame (100) in a direction perpendicular to the conveyor belt (110).
4. The X-ray foreign object detection machine according to claim 3, characterized in that, It also includes a connecting plate fixedly installed on the outer wall of the limit frame (130). The lower end of the connecting plate is provided with a vertical pipe (410) that is in communication with the connecting pipe. A piston pipe (400) is fixedly installed on the upper side of the connecting plate. A piston rod is movably connected inside the piston pipe (400). The upper end of the piston rod passes through the piston pipe (400) and extends to the upper side where a movable plate (420) is fixedly installed. And metal sheets (132) are laid linearly and evenly on the outer wall of the limiting frame (130). When the moving plate (420) comes into contact with different metal sheets (132), the electromagnets (131) corresponding to different heights are connected to the power supply, thereby adjusting the height of the mounting frame (500) in the vertical direction.
5. An X-ray foreign object detection machine according to claim 4, characterized in that, It also includes a rotating shaft (520) rotatably connected inside the mounting bracket (500), the rotating shaft (520) being fixedly connected to the transmitter (540), and sealing plates (521) being fixedly installed on both ends of the rotating shaft (520). And cylindrical parts (530) sleeved at both ends of the rotating shaft (520), the cylindrical parts (530) have a cavity (531) inside, the outer wall of the sealing plate (521) slides with the inner wall of the cavity (531), and the cavity (531) is connected to the output end of the external air pump through the hose (532).