Food detection device

Abstract

The invention relates to a food detection device. A detection cabin and an equipment cabin are arranged in the detection device; the detection cabin is provided with a closed shell, and two cabin doors corresponding to the external conveying belt are formed in the shell; a material conveying roller in butt joint with an external conveying belt is arranged in the detection cabin, and a bearing frame and a lifting air cylinder used for driving the bearing frame to ascend and descend are arranged below the material conveying roller; the top and the bottom in the detection cabin are respectively provided with an appearance camera facing the supporting frame; an X-ray emitter is installed in the equipment cabin, the emitting direction of the X-ray emitter faces the bearing frame, a shell of the detection cabin is provided with an X-ray emitting opening corresponding to the X-ray emitter, and an X-ray detector is arranged at the position, opposite to the X-ray emitter, in the detection cabin. Compared with the prior art, the imaging quality can be improved, and all-directional dead-corner-free detection is realized.

Description

Technical Field

[0001] This invention relates to the field of food testing technology, and in particular to a food testing device. Background Technology

[0002] Food testing technology plays a vital role in the modern food industry, directly impacting food safety and quality control. Currently, common food testing methods mainly fall into two categories: visual inspection and internal defect detection. Visual inspection typically employs machine vision systems, using industrial cameras to acquire and analyze images of the food surface to identify issues such as deformation, contamination, and abnormal coloring. Internal defect detection, on the other hand, largely relies on X-ray imaging technology, which uses X-ray scanning to detect foreign objects, voids, or structural abnormalities within the food.

[0003] Existing food inspection equipment typically integrates the inspection module directly above or on both sides of the production line conveyor belt, enabling real-time online inspection of food on the conveyor belt. However, this structure has significant limitations: firstly, the conveyor belt itself may interfere with image acquisition, such as obstructing the field of view, causing glare, or vibrations that affect image clarity; secondly, X-rays must also penetrate the conveyor belt to penetrate the food, leading to a decrease in the image signal-to-noise ratio, especially when identifying low-density foreign objects or fine structures, making it difficult to meet the requirements for high-precision inspection.

[0004] Furthermore, traditional equipment often uses fixed inspection stations, which cannot achieve multi-angle observation of food. Especially when a comprehensive visual inspection of food is required, blind spots often exist, limiting the improvement of inspection accuracy and reliability. Although some equipment has attempted to improve this problem by adding a rotating mechanism, it has not fundamentally solved the impact of the conveyor belt on image quality.

[0005] Therefore, there is an urgent need for a food inspection device that can avoid conveyor belt interference, support multi-angle imaging, and integrate appearance and internal defect detection functions to improve inspection efficiency and accuracy. Summary of the Invention

[0006] The purpose of this invention is to address the shortcomings of existing technical solutions and to provide a food testing device.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] A food testing device, wherein the testing device is provided with a testing chamber and an equipment chamber;

[0009] The testing chamber has a closed shell with two doors on the shell corresponding to the external conveyor belt; the interior of the testing chamber is equipped with a material transfer roller that connects to the external conveyor belt, and a support frame and a lifting cylinder for driving the support frame to rise and fall are provided below the material transfer roller.

[0010] An external camera facing the support frame is installed at the top and bottom of the testing chamber;

[0011] An X-ray transmitter is installed inside the equipment compartment, with the emission direction of the X-ray transmitter facing the support frame. The shell of the detection compartment has an X-ray emission port corresponding to the X-ray transmitter, and an X-ray detector is installed inside the detection compartment at a position opposite to the X-ray transmitter.

[0012] As a preferred technical solution, the material transfer roller is divided into two rows, left and right, with gaps between multiple rollers in the same row and between the two rows of rollers. The cross-section of the support frame matches the gap of the material transfer roller. Driven by the lifting cylinder, the support frame can extend above the material transfer roller.

[0013] As a preferred technical solution, the upper surface of the support frame is provided with a plurality of support blocks for supporting food, and the support blocks located at the edge of the support frame are higher than the support blocks located at the center of the support frame.

[0014] As a preferred technical solution, the support frame is made of polyurethane.

[0015] As a preferred technical solution, a transverse rotary motor is provided between the lifting cylinder and the support frame, and the transverse rotary motor is driven to drive the support frame to rotate horizontally.

[0016] As a preferred technical solution, the outer surface of the X-ray emitter is provided with heat dissipation fins.

[0017] As a preferred technical solution, ventilation openings are provided on the side panels of the equipment compartment, and axial flow fans for heat dissipation are respectively installed on both sides of the X-ray transmitter inside the equipment compartment.

[0018] As a preferred technical solution, the exterior camera is tilted toward the support frame, and the angle between the exterior camera and the horizontal plane is 15-45°.

[0019] As a preferred technical solution, the detection device further includes a display, which is connected to the external camera and the X-ray detector signals respectively.

[0020] As a preferred technical solution, the detection device further includes a status indicator light, which has three different colors: red, yellow, and green.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] The food inspection device proposed in this invention uses a lifting cylinder and a support frame to raise the food to be tested into the air for X-ray inspection, and two cameras (one above and one below) to perform visual inspection of the food. This avoids the conveyor belt obstructing the cameras and X-rays, improving image quality and achieving omnidirectional, blind-spot-free inspection. Attached Figure Description

[0023] Figure 1 This is a front view of a food testing device according to the present invention.

[0024] Figure 2 This is a front cross-sectional view of a food testing device according to the present invention.

[0025] Figure 3 This is a top cross-sectional view of a food testing device according to the present invention.

[0026] Figure 4 This is a three-dimensional structural diagram of some internal components of a food testing device according to the present invention.

[0027] The following are the labels in the diagram: 1. X-ray emitter, 2. External camera, 3. X-ray detector, 4. Material transfer roller, 5. Support frame, 6. Lifting cylinder, 7. Display, 8. Status indicator light. Detailed Implementation

[0028] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0029] Example 1

[0030] like Figure 1 As shown, this invention proposes a food testing device, such as... Figure 2 As shown, the testing device is internally configured with a testing chamber and an equipment chamber. The testing chamber has a sealed shell with two doors corresponding to the external conveyor belt. Both the shell and the doors of the testing chamber are made of radiation-shielding materials, such as lead alloy plates or barium sulfate plates.

[0031] The testing chamber is equipped with a material transfer roller 4 that connects to the external conveyor belt. Below the material transfer roller 4 is a support frame 5 and a lifting cylinder 6 for driving the support frame 5 to rise and fall. The material transfer roller 4 is divided into two rows, left and right. Gaps are left between multiple rollers in the same row and between the rollers in the two rows. The cross-section of the support frame 5 matches the gap between the material transfer rollers 4. Driven by the lifting cylinder 6, it can extend above the material transfer roller 4.

[0032] Furthermore, the upper surface of the support frame 5 is provided with multiple support blocks for supporting the food, with the height of the support blocks located at the edge of the support frame 5 being higher than the height of the support block located at the center of the support frame 5. This allows the food to be tested to automatically return to the center. Additionally, the support frame 5 is made of polyurethane material, reducing the shadows it casts in X-ray imaging.

[0033] Furthermore, a horizontal rotation motor can be installed between the lifting cylinder 6 and the support frame 5. The horizontal rotation motor drives the support frame 5 to rotate horizontally, thereby achieving 360° appearance inspection of the food to be tested.

[0034] The X-ray transmitter 1 is installed inside the equipment compartment, with the X-ray emission direction facing the support frame 5. An X-ray emission port corresponding to the X-ray transmitter 1 is opened on the side wall of the detection compartment. An X-ray detector 3 is installed in the detection compartment at a position opposite to the X-ray transmitter 1.

[0035] Furthermore, heat dissipation fins can be provided on the outer surface of the X-ray emitter 1, ventilation openings are provided on the side panel of the equipment compartment of the detection equipment, and axial flow fans are provided on both sides of the X-ray emitter 1 inside the equipment compartment to assist the equipment in heat dissipation.

[0036] The top and bottom of the inspection chamber are each equipped with an appearance camera 2 facing the support frame 5. The two cameras are tilted toward the support frame 5 at an angle of 15-45° with respect to the horizontal plane.

[0037] The front of the detection device is equipped with a display screen, which is connected to the external camera 2 and the X-ray detector 3 for the operator to view the detection results.

[0038] The detection device is also equipped with a status indicator light 8, which has three different colors: red, yellow, and green, to indicate the current working status of the equipment. When the X-ray transmitter 1 is working, the red light on indicator light 8 will illuminate, prompting the operator to move away and take protective measures.

[0039] The working process of the food testing device of this invention is as follows: The food to be tested is fed into the testing chamber of the testing equipment via an external conveyor belt, and the chamber door is closed. The food to be tested is transferred to the top of the support frame 5 by the transfer roller 4, and then the lifting cylinder 6 drives the support frame 5 to rise, lifting the food to be tested. At this time, the X-ray transmitter 1 and the external camera 2 begin to work. After the food testing is completed, the lifting cylinder 6 retracts, the chamber door opens, and the food is sent out of the testing equipment via the transfer roller 4. Subsequent tests are repeated in this manner.

[0040] The preferred embodiments of the present invention have been described in detail above. It should be understood that those skilled in the art can make numerous modifications and variations based on the concept of the present invention without creative effort. Therefore, all technical solutions that can be obtained by those skilled in the art based on the concept of the present invention through logical analysis, reasoning, or limited experimentation on the basis of existing technology should be within the scope of protection defined by the claims.

Claims

1. A food testing device, characterized in that, The detection device is equipped with a detection chamber and an equipment chamber. The testing chamber has a closed shell with two doors on the shell corresponding to the external conveyor belt; the interior of the testing chamber is provided with a material transfer roller (4) that is connected to the external conveyor belt, and a support frame (5) and a lifting cylinder (6) for driving the support frame (5) to rise and fall are provided below the material transfer roller (4). An external camera (2) facing the support frame (5) is installed at the top and bottom of the testing chamber; An X-ray transmitter (1) is installed inside the equipment compartment. The X-ray transmitter (1) emits light towards the support frame (5). The shell of the detection compartment has an X-ray emission port corresponding to the X-ray transmitter (1). An X-ray detector (3) is installed in the detection compartment at a position opposite to the X-ray transmitter (1).

2. The food testing device according to claim 1, characterized in that, The material transfer roller (4) is divided into two rows, left and right. There are gaps between multiple rollers in the same row and between the two rows of rollers. The cross-section of the support frame (5) matches the gap of the material transfer roller (4). Driven by the lifting cylinder (6), the support frame (5) can extend above the material transfer roller (4).

3. The food testing device according to claim 1, characterized in that, The upper surface of the support frame (5) is provided with a plurality of support blocks for supporting food, and the support blocks located at the edge of the support frame (5) are higher than the support blocks located at the center of the support frame (5).

4. The food testing device according to claim 1, characterized in that, The support frame (5) is made of polyurethane.

5. A food testing device according to claim 1, characterized in that, A horizontal rotation motor is provided between the lifting cylinder (6) and the support frame (5), and the horizontal rotation motor is connected to the support frame (5) to drive the support frame (5) to rotate horizontally.

6. The food testing device according to claim 1, characterized in that, The outer surface of the X-ray emitter (1) is provided with heat dissipation fins.

7. A food testing device according to claim 1, characterized in that, Ventilation openings are provided on the side panels of the equipment compartment, and axial flow fans for heat dissipation are respectively provided on both sides of the X-ray transmitter (1) inside the equipment compartment.

8. A food testing device according to claim 1, characterized in that, The exterior camera (2) is tilted toward the support (5), and the angle between the exterior camera (2) and the horizontal plane is 15-45°.

9. A food testing device according to claim 1, characterized in that, The detection device also includes a display, which is connected to the exterior camera (2) and the X-ray detector (3) respectively.

10. A food testing device according to claim 1, characterized in that, The detection device also includes a status indicator (8), which has three different colors: red, yellow, and green.

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