Automatic detection device for internal quality of fruits

Abstract

The utility model relates to a fruit internal quality automatic detection device which comprises an internal detection rack, and an internal detection fruit support conveying line, a near-infrared light source module and a receiving module are arranged on the internal detection rack. The near-infrared light source module is erected above the internal detection fruit support conveying line, and the near-infrared light source module irradiates fruits supported by fruit supports on the internal detection fruit support conveying line through a near-infrared light source; and the receiving module is arranged below the internal detection fruit support conveying line, is connected with the spectrograph, receives light rays scattered or transmitted through the fruits and transmits the light rays to the spectrograph. Compared with a traditional manual distinguishing mode, the fruit quality distinguishing device can rapidly and accurately distinguish the internal quality of fruits; and the method is not influenced by subjective factors of human judgment, so that human errors are avoided, and the accuracy and reliability of detection are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of visual detection automation equipment, in particular to an automatic detection device for the internal quality of fruits. Background Art

[0002] As people's living standards improve, the requirements for fruit quality are getting higher and higher. Sweetness, taste, freshness, etc. are all the focus of consumers. However, the current judgment of fruit quality mainly relies on the personal experience of fruit farmers to judge the sweetness of fruits, whether there are internal lesions, etc.; because human judgment is affected by subjective factors, the accuracy of internal quality cannot be guaranteed. Specifically, fruit farmers or quality inspectors may make mistakes in judgment due to lack of experience, visual errors, fatigue and other factors. In addition, different people may have different criteria for judging qualities such as sweetness and taste, which will also affect the accuracy of judgment. Therefore, in order to more accurately and objectively evaluate the quality of fruits, a more scientific and reliable method is needed. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide an automatic detection device for the internal quality of fruits, which can complete the non-destructive detection of the internal quality of fruits by means of near infrared spectrum analysis technology.

[0004] The utility model adopts the following technical scheme to solve the technical problem: an automatic detection device for the internal quality of fruits, comprising an internal detection frame, on which an internal detection fruit tray conveyor line, a near-infrared light source module and a receiving module are arranged; the near-infrared light source module is arranged above the internal detection fruit tray conveyor line, and the near-infrared light source module irradiates fruits supported by fruit trays on the internal detection fruit tray conveyor line through the near-infrared light source; the receiving module is arranged below the internal detection fruit tray conveyor line, and the receiving module is connected to a spectrometer, and the receiving module receives light scattered or transmitted through the fruit and transmits it to the spectrometer.

[0005] Furthermore, the near-infrared light source module described in the utility model includes two groups of light sources, and the two groups of light sources are respectively arranged on both sides of the internal detection fruit tray conveyor line through the light source bracket modules.

[0006] Furthermore, the light source described in the utility model is a halogen lamp light source, a light source shield is arranged on the side of the halogen lamp light source, and the light source shield is rotatably arranged on the shield rotating cylinder.

[0007] Furthermore, the light source bracket module described in the utility model includes a transverse adjustment component, a longitudinal adjustment component and an angle adjustment component; the transverse adjustment component is arranged on the internal detection rack, the longitudinal adjustment component moves on the transverse adjustment component, the angle adjustment component is connected to the longitudinal adjustment component, and the light source is connected to the angle adjustment component.

[0008] Furthermore, the internal inspection fruit tray conveyor line described in the utility model includes two groups of belt drive components, a distance is provided between the two groups of belt drive components, and the two groups of belt drive components support both sides of the fruit tray for transmission.

[0009] Furthermore, the receiving module described in the present invention includes a fiber optic lens, which is connected to the spectrometer through a circuit; the fiber optic lens is arranged in the distance between the two groups of belt drive components and is located below the fruit tray.

[0010] Furthermore, the fruit tray described in the utility model includes a fruit tray base, a base shading ring arranged in the fruit tray base, and a fruit tray; the fruit tray is a hollow structure, the bottom of the fruit tray is connected to the base shading ring, and the top of the fruit tray is provided with a plurality of claws along the circumference of the edge, and the ends of the claws have a downward curvature.

[0011] Furthermore, the near-infrared light source module of the present invention is provided with a heat dissipation cover on the outside, and a plurality of heat dissipation fans are provided on the heat dissipation cover.

[0012] The beneficial effect of the utility model is that it solves the defects existing in the background technology, adopts a halogen lamp as a near-infrared light source to irradiate the fruit, receives different propagation modes of the light through a spectrometer, obtains the original spectrum, and then analyzes and processes the original spectrum through chemometric software. On the basis of a prediction model built in advance, the internal quality information of the fruit can be analyzed; compared with the traditional manual judgment method, the internal quality of the fruit can be judged quickly and accurately; and it is not affected by the subjective factors of human judgment, thus avoiding human errors and improving the accuracy and reliability of detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 This is an exploded view of the structure of the fruit tray of the utility model;

[0015] Figure 3 This is a schematic diagram of the structure of the utility model from another perspective;

[0016] In the figure: 10, fruit tray; 101, fruit tray base; 102, base light shielding ring; 103, fruit tray; 104, supporting claw;

[0017] 421, internal detection rack; 422, internal detection fruit tray conveyor line; 423, near infrared light source module; 424, receiving module; 425, heat dissipation cover; 426, heat dissipation fan;

[0018] 4221, belt drive assembly;

[0019] 4231, light source; 4232, light source mask; 4233, mask rotating cylinder; 4234, lateral adjustment component; 4235, longitudinal adjustment component; 4236, angle adjustment component;

[0020] 4241. Fiber optic lens. DETAILED DESCRIPTION

[0021] Now the utility model is further described in detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0022] like Figure 1-Figure 3 An automatic fruit internal quality detection device shown in the figure includes an internal detection frame 421, on which an internal detection fruit tray conveyor line 422, a near-infrared light source module 423 and a receiving module 424 are provided; the near-infrared light source module 423 is set above the internal detection fruit tray conveyor line 422, and the near-infrared light source module 423 irradiates the fruits supported by the fruit trays on the internal detection fruit tray conveyor line through the near-infrared light source.

[0023] like Figure 2 As shown, the fruit tray 10 includes a fruit tray base 101, a base shading ring 102 and a fruit tray 103 arranged in the fruit tray base 101; the fruit tray is a hollow structure, and the hollow structure can be unobstructed, so that the detection component can easily collect images of the top and bottom of the fruit; the bottom of the fruit tray is connected to the base shading ring, and a plurality of claws 104 are arranged along the circumference of the edge of the top of the fruit tray, and the ends of the claws have a downward curvature, and the curvature of the claws 104 can better fit the bottom of the fruit without damaging the fruit.

[0024] like Figure 3 As shown, the near-infrared light source module 423 includes two groups of light sources 4231, which are respectively arranged on both sides of the internal inspection fruit tray conveyor line through the light source bracket module. The light source is a halogen light source. In order to protect the optical fiber lens, a light source mask 4232 is arranged on the side of the halogen light source, and the light source mask is rotatably arranged on the mask rotating cylinder 4233; when no inspection fruit enters, the mask rotating cylinder rotates 90°, driving the light source mask to cover the halogen light source.

[0025] Since the halogen lamp generates a lot of heat, in order to reduce the temperature of the detection area and prevent the detection effect from being affected by excessive temperature, a heat dissipation cover 425 is provided outside the near-infrared light source module 423, and a plurality of heat dissipation fans 426 are provided on the heat dissipation cover.

[0026] The internal inspection fruit tray conveyor line includes two groups of belt drive components 4221, and a 90mm wide interval is set between the two groups of belt drive components. The two groups of belt drive components support both sides of the fruit tray for transmission.

[0027] The light source support module includes a transverse adjustment component 4234, a longitudinal adjustment component 4235 and an angle adjustment component 4236; the transverse adjustment component 4234 is arranged on the internal detection frame, the longitudinal adjustment component 4235 moves on the transverse adjustment component, the angle adjustment component 4236 is connected to the longitudinal adjustment component, and the light source is connected to the angle adjustment component. Through transverse, longitudinal and angle adjustments, the device can be used to detect fruits of different varieties and sizes.

[0028] The receiving module 424 includes a fiber optic lens 4241, which is connected to the spectrometer through a circuit; the fiber optic lens 4241 is arranged in the distance between the two groups of belt drive components 4221 and is located below the fruit tray 10, receives scattered light or light transmitted through the fruit and transmits it to the spectrometer.

[0029] The detection principle is: using a halogen lamp as a near-infrared light source to illuminate the fruit, part of the light will be reflected, part of the light will disappear inside the fruit, and the rest of the light will be scattered or transmitted through the fruit. This part of the scattered or transmitted light carries the information of the internal quality of the fruit, such as sugar content, black heart disease, etc. This part of the light is received by the spectrometer to obtain the original spectrum, and then the original spectrum is analyzed and processed by the chemometric software. On the basis of the prediction model built in advance, the internal quality information of the fruit can be analyzed.

[0030] The above description only describes the specific implementation methods of the utility model. Various examples do not limit the essential content of the utility model. Ordinary technicians in the relevant technical field can modify or deform the specific implementation methods described above after reading the description without departing from the essence and scope of the utility model.

Claims

1. A device for automatically detecting the internal quality of fruits, characterized in that: It comprises an internal detection frame, on which an internal detection fruit tray conveyor line, a near-infrared light source module and a receiving module are arranged; the near-infrared light source module is set above the internal detection fruit tray conveyor line, and the near-infrared light source module irradiates fruits supported by fruit trays on the internal detection fruit tray conveyor line through the near-infrared light source; the receiving module is arranged below the internal detection fruit tray conveyor line, and the receiving module is connected to a spectrometer, and the receiving module receives light scattered or transmitted through the fruit and transmits it to the spectrometer.

2. The automatic detection device for the internal quality of fruits according to claim 1, characterized in that: The near-infrared light source module comprises two groups of light sources, and the two groups of light sources are respectively arranged on both sides of the internal detection fruit tray conveyor line through the light source bracket module.

3. The automatic detection device for the internal quality of fruits according to claim 2, characterized in that: The light source is a halogen lamp light source, a light source shield is arranged on the side of the halogen lamp light source, and the light source shield is rotatably arranged on a shield rotating cylinder.

4. The automatic detection device for the internal quality of fruits according to claim 2, characterized in that: The light source bracket module includes a transverse adjustment component, a longitudinal adjustment component and an angle adjustment component; the transverse adjustment component is arranged on the internal detection rack, the longitudinal adjustment component moves on the transverse adjustment component, the angle adjustment component is connected to the longitudinal adjustment component, and the light source is connected to the angle adjustment component.

5. The automatic detection device for the internal quality of fruits according to claim 1, characterized in that: The internal inspection fruit tray conveyor line comprises two groups of belt transmission components, a distance is provided between the two groups of belt transmission components, and the two groups of belt transmission components hold both sides of the fruit tray for transmission.

6. The automatic detection device for the internal quality of fruits according to claim 5, characterized in that: The receiving module comprises an optical fiber lens, which is connected to the spectrometer through a circuit; the optical fiber lens is arranged in the interval between the two groups of belt transmission components and is located below the fruit tray.

7. The automatic detection device for the internal quality of fruits according to claim 1, characterized in that: The fruit tray comprises a fruit tray base, a base shading ring arranged in the fruit tray base, and a fruit tray; the fruit tray is a hollow structure, the bottom of the fruit tray is connected to the base shading ring, and a plurality of supporting claws are arranged along the circumference of the edge of the top of the fruit tray, and the ends of the supporting claws have a downward curvature.

8. The automatic detection device for the internal quality of fruits according to claim 1, characterized in that: A heat dissipation cover is arranged outside the near-infrared light source module, and a plurality of heat dissipation fans are arranged on the heat dissipation cover.

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