Melon maturity detection device

Abstract

The utility model discloses a melon maturity degree detection device which comprises a chain scraper conveyor, a plurality of installation seats are fixedly connected to a chain plate of the chain scraper conveyor, the installation seats are installed on the chain plate of the chain scraper conveyor at equal intervals, and movable detection frames are fixedly connected to the installation seats. A centering positioning mechanism is arranged in the movable detection frame, a first light inlet is formed in the back face of the movable detection frame, and mounting frames are fixedly connected to the front face and the back face of the chain scraper conveyor. Through cooperative use of structures such as the halogen lamp, the spectrograph, the optical energy receiver, the chain scraper conveyor, the fixed detection frame and the movable detection frame, nondestructive detection of the maturity condition in the muskmelon can be realized, the operation is simple and convenient, the automation degree is high, time and labor are saved, the traditional mode of manually judging whether the muskmelon is mature or not by experience is replaced, and the working efficiency is improved. Not only is the accuracy of the melon maturity detection result improved, but also efficient detection of the maturity of a large batch of melons can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of melon detection, in particular to a melon maturity detection device. Background Art

[0002] Melon (Cucumis melo L.), a plant of the cucumber genus in the gourd family, has rough stems, branches and petioles with shallow grooves; the leaves are nearly round or kidney-shaped, with white rough hairs on the upper surface and dense rough hairs along the veins on the lower surface; the corolla is yellow, and the lobes are ovate oblong; the fruit skin is smooth without spiny protrusions, and the pulp is white, yellow or green; the flowering and fruiting periods are in summer. Melons are named for their sweet taste and are also called fragrant melons because of their strong fragrance.

[0003] Melons are widely planted in China. In summer, melons are an essential fruit in our lives. When we buy melons, what we worry most about is whether the melons are ripe, which is also a concern for merchants. Traditional melon maturity detection is mostly judged manually by experience, and the judgment methods are as follows:

[0004] Observe the melon navel: For a ripe melon, its melon navel usually presents a large circle and the inside protrudes significantly outward;

[0005] Smell the odor: A ripe melon emits a strong sweet fragrance, especially at the thicker end of the melon, where the fragrance is stronger;

[0006] Weigh the melon: A ripe melon is relatively heavier because it has sufficient internal moisture;

[0007] Touch the hardness: When squeezing the skin of a ripe melon, it will show a certain elasticity, while an unripe melon has a higher hardness.

[0008] Manually judging whether a melon is ripe by experience has poor accuracy, frequent misjudgments, and is time-consuming and laborious. It is difficult to efficiently detect a large number of melons. Therefore, this application proposes a melon maturity detection device based on transmission spectroscopy technology to replace the traditional method of manual detection by experience. It uses transmission spectroscopy technology to accurately detect whether a melon is ripe, has a high degree of automation, saves time and effort, and is convenient for detecting the maturity of a large number of melons. Summary of the Utility Model

[0009] The purpose of the utility model is to solve the defects existing in the prior art and propose a melon maturity detection device.

[0010] To achieve the above object, the utility model adopts the following technical solutions: A melon maturity detection device includes a chain conveyor. A plurality of mounting seats are fixedly connected to the chain of the chain conveyor. The plurality of mounting seats are equidistantly installed on the chain of the chain conveyor. A movable detection frame is fixedly connected to the mounting seat. A centering and positioning mechanism is arranged inside the movable detection frame. And a first light inlet is opened on the back of the movable detection frame. Mounting frames are fixedly connected to both the front and back of the chain conveyor. A fixed detection frame is fixedly connected between the two mounting frames. A device box is fixedly connected to the back of the fixed detection frame. A halogen lamp is fixedly installed inside the device box. A second light inlet is opened on the back of the fixed detection frame at a position corresponding to the halogen lamp. A light energy receiver is embedded at a position corresponding to the halogen lamp on the front of the fixed detection frame. And a spectrometer and a human-machine operation panel are also arranged on the fixed detection frame. A heat dissipation port is opened on one side of the device box. A ventilation and heat dissipation mechanism is arranged on the other side of the device box.

[0011] As a further description of the above technical solution: A transparent partition is fixedly connected to the inner wall of the second light inlet.

[0012] As a further description of the above technical solution: The centering and positioning mechanism includes a guide block fixedly installed at the bottom of the inner wall of the movable detection frame. The top of the guide block is an inclined surface. The lower side of the inclined surface is close to the second light inlet. An inclined chute is opened on the top of the guide block. A slider is slidably connected inside the chute. The top of the slider is fixedly connected with a bowl-shaped positioning seat through a connecting rod. A flexible return spring is fixedly connected to the side of the slider close to the second light inlet.

[0013] As a further description of the above technical solution: The light energy receiver and the spectrometer are connected by an optical fiber. The spectrometer and the human-machine operation panel are connected by a data transmission line.

[0014] As a further description of the above technical solution: A dust-proof net is fixedly connected to the inner wall of the heat dissipation port.

[0015] As a further description of the above technical solution: The ventilation and heat dissipation mechanism includes a PLC controller, a temperature sensor and a refrigeration box fixedly installed on the device box. The detection probe of the temperature sensor is located inside the device box. The refrigeration box is opposite to the heat dissipation port and fixedly communicated with the device box. A blower is fixedly installed on the side of the refrigeration box away from the device box.

[0016] As a further description of the above technical solution: A semiconductor refrigeration sheet is embedded on the refrigeration box. The refrigeration end of the semiconductor refrigeration sheet is located inside the refrigeration box. And the heat dissipation end of the semiconductor refrigeration sheet is located outside the refrigeration box.

[0017] As a further description of the above technical solution: a heat conduction fin is bonded to the refrigerating end of the semiconductor refrigerating sheet, and a heat dissipation fin is bonded to the heat dissipation end of the semiconductor refrigerating sheet.

[0018] The utility model has the following beneficial effects:

[0019] 1. Compared with the prior art, for the melon maturity detection device, by turning on the halogen lamp, the generated light source sequentially passes through the second light inlet and the first light inlet and then enters the melon. The spectrum carrying the internal maturity information of the melon exits from the other side of the melon, and is received by the light energy receiver, and then the spectrum information is transmitted to the spectrometer by the optical fiber to complete the acquisition of the internal maturity spectrum information of the melon. Then, the data collected by the spectrometer is uploaded to the human-machine operation panel through the data transmission line, and the human-machine operation panel displays and stores the spectrum data, completing the non-destructive detection of the internal maturity of the melon. The operation is simple and convenient, the degree of automation is high, it saves time and effort, replaces the traditional manual judgment of whether the melon is mature by experience, not only improves the accuracy of the melon maturity detection result, but also can efficiently detect the maturity of a large number of melons.

[0020] 2. Compared with the prior art, for the melon maturity detection device, through the setting of the ventilation and heat dissipation mechanism, it can efficiently cool the halogen lamp during the working process, so as to avoid the halogen lamp affecting the working performance due to too high temperature, and can avoid the halogen lamp being damaged due to too high temperature, improving the service life of the halogen lamp.

[0021] 3. Compared with the prior art, for the melon maturity detection device, through the combined use of the movable detection frame and the fixed detection frame, they can jointly form a closed detection chamber to block the external light source and avoid the external light source interfering with the detection result, effectively improving the accuracy of the melon maturity detection result. Description of the Drawings

[0022] Figure 1 It is a three-dimensional schematic diagram of the overall structure of a melon maturity detection device proposed by the utility model;

[0023] Figure 2 It is another three-dimensional schematic diagram of the overall structure of a melon maturity detection device proposed by the utility model;

[0024] Figure 3 It is a schematic diagram of structures such as the fixed detection frame and the movable detection frame of a melon maturity detection device proposed by the utility model;

[0025] Figure 4 It is a schematic diagram of structures such as the device box and the refrigeration box of a melon maturity detection device proposed by the utility model;

[0026] Figure 5Schematic diagram of structures such as light inlet two and transparent partition of a melon maturity detection device proposed by the present utility model;

[0027] Figure 6 Exploded view of structures such as fixed detection frame and movable detection frame of a melon maturity detection device proposed by the present utility model;

[0028] Figure 7 Schematic diagram of the centering positioning mechanism of a melon maturity detection device proposed by the present utility model;

[0029] Figure 8 Schematic diagram of the internal structure of the device box of a melon maturity detection device proposed by the present utility model;

[0030] Figure 9 Schematic diagram of the internal structure of the refrigeration box of a melon maturity detection device proposed by the present utility model.

[0031] Legend:

[0032] 1. Chain conveyor; 2. Mounting seat; 3. Movable detection frame; 4. Light inlet one; 5. Mounting frame; 6. Fixed detection frame; 7. Device box; 8. Halogen lamp; 9. Light inlet two; 10. Light energy receiver; 11. Spectrometer; 12. Human-machine operation panel; 13. Heat dissipation port; 14. Transparent partition; 15. Guide block; 16. Slide groove; 17. Slide block; 18. Bowl-shaped positioning seat; 19. Flexible return spring; 20. Dust-proof net; 21. PLC controller; 22. Temperature sensor; 23. Refrigeration box; 24. Fan; 25. Semiconductor refrigeration chip; 26. Cold conduction fin; 27. Heat conduction fin. Specific embodiments

[0033] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0034] Refer to Figures 1-9, a melon ripeness detection device provided by the utility model: including a chain plate conveyor 1, a plurality of mounting seats 2 are fixedly connected to the chain plate of the chain plate conveyor 1, the plurality of mounting seats 2 are equidistantly installed on the chain plate of the chain plate conveyor 1, a movable detection frame 3 is fixedly connected to the mounting seat 2, a centering positioning mechanism is arranged inside the movable detection frame 3, and a first light inlet 4 is opened on the back surface of the movable detection frame 3. Mounting frames 5 are fixedly connected to the front and back surfaces of the chain plate conveyor 1, a fixed detection frame 6 is fixedly connected between the two mounting frames 5, a device box 7 is fixedly connected to the back surface of the fixed detection frame 6, a halogen lamp 8 is fixedly installed inside the device box 7, and a second light inlet 9 is opened at a position corresponding to the halogen lamp 8 on the back surface of the fixed detection frame 6. A transparent partition 14 is fixedly connected to the inner wall of the second light inlet 9, a light energy receiver 10 is embedded at a position corresponding to the halogen lamp 8 on the front surface of the fixed detection frame 6, and a spectrometer 11 and a human-machine operation panel 12 are further arranged on the fixed detection frame 6. A heat dissipation port 13 is opened on one side of the device box 7, a dust-proof net 20 is fixedly connected to the inner wall of the heat dissipation port 13, and a ventilation and heat dissipation mechanism is arranged on the other side of the device box 7. Through the cooperation of structures such as the halogen lamp 8, the spectrometer 11, the light energy receiver 10, the chain plate conveyor 1, the fixed detection frame 6 and the movable detection frame 3, the non-destructive detection of the internal ripeness of melons can be carried out, the operation is simple and convenient, the degree of automation is high, time and labor are saved, and the traditional method of manually judging whether melons are ripe by experience is replaced. It not only improves the accuracy of the melon ripeness detection result, but also can efficiently detect the ripeness of a large number of melons.

[0035] The centering positioning mechanism includes a guide block 15 fixedly installed at the bottom of the inner wall of the movable detection frame 3. The top of the guide block 15 is an inclined surface, and the side with the lower inclined surface is close to the second light inlet 9. An inclined chute 16 is opened on the top of the guide block 15, a slider 17 is slidably connected inside the chute 16, a bowl-shaped positioning seat 18 is fixedly connected to the top of the slider 17 through a connecting rod, and a flexible return spring 19 is fixedly connected to the side of the slider 17 close to the second light inlet 9.

[0036] The light energy receiver 10 and the spectrometer 11 are connected by an optical fiber, and the spectrometer 11 and the human-machine operation panel 12 are connected by a data transmission line.

[0037] The ventilation and heat dissipation mechanism includes a PLC controller 21, a temperature sensor 22 and a refrigeration box 23 fixedly installed on the device box 7. The detection probe of the temperature sensor 22 is located inside the device box 7. The refrigeration box 23 is opposite to the heat dissipation port 13 and fixedly communicated with the device box 7. A blower 24 is fixedly installed on the side of the refrigeration box 23 away from the device box 7. A dust-proof net is provided at the air inlet end of the blower 24. A semiconductor refrigeration sheet 25 is embedded in the refrigeration box 23. The refrigeration end of the semiconductor refrigeration sheet 25 is located inside the refrigeration box 23, and the heat dissipation end of the semiconductor refrigeration sheet 25 is located outside the refrigeration box 23. The refrigeration end of the semiconductor refrigeration sheet 25 is bonded with a cold conduction fin 26, and the heat dissipation end of the semiconductor refrigeration sheet 25 is bonded with a heat conduction fin 27. Through the setting of the ventilation and heat dissipation mechanism, the halogen lamp 8 during the working process can be efficiently cooled, so as to prevent the halogen lamp 8 from affecting the working performance due to excessive temperature, and can prevent the halogen lamp 8 from being damaged due to excessive temperature, and the service life of the halogen lamp 8 is prolonged.

[0038] Working principle: When it is necessary to detect the maturity of a large number of melons, the staff first place the melons to be detected in the bowl-shaped positioning seat 18 in the centering positioning mechanism. Since the chute 16 is inclined, under the gravity of the melons, the slider 17 will slide towards the lower end of the inclined surface of the top of the guide block 15 in the inclined chute 16, so that the melons move towards the light inlet 1 4 and abut against the light inlet 1 4. Subsequently, the chain plate conveyor 1 is driven to move the chain plate, thereby driving the positioning seat and the moving detection frame 3 to move. When the moving detection frame 3 moves into the fixed detection frame 6, the moving detection frame 3 and the fixed detection frame 6 together form a closed detection chamber to block external light sources and avoid interference of external light sources on the detection results, effectively improving the accuracy of the melon maturity detection results.

[0039] By turning on the halogen lamp 8, the generated light source passes through the light inlet 2 9 and the light inlet 1 4 in sequence and shoots into the melons. The spectrum carrying the internal maturity information of the melons is emitted from the other side of the melons, and is received by the light energy receiver 10, and then the spectrum information is transmitted to the spectrometer 11 through the optical fiber to complete the acquisition of the internal maturity spectrum information of the melons. Then, the data collected by the spectrometer 11 is uploaded to the human-machine operation panel 12 through the data transmission line, and the human-machine operation panel 12 displays and stores the spectrum data, completing the non-destructive detection of the internal maturity of the melons. The operation is simple and convenient, with a high degree of automation, saving time and effort, replacing the traditional manual judgment of whether the melons are mature by experience. It not only improves the accuracy of the melon maturity detection results, but also can efficiently detect the maturity of a large number of melons.

[0040] With the setting of the fan 24, when the halogen lamp 8 is working, air can be blown into the device box 7 through the refrigeration box 23, and the gas in the device box 7 is discharged from the heat dissipation port 13, accelerating the circulation rate of the gas in the device box 7 and the external gas to achieve the heat dissipation effect. Moreover, with the setting of the temperature sensor 22, the temperature in the device box 7 can be detected, and the detected data is transmitted to the PLC controller 21. When the temperature in the device box 7 is higher than the preset value, the semiconductor refrigeration sheet 25 is turned on through the PLC controller 21, and the refrigerating end of the semiconductor refrigeration sheet 25 cools the gas in the refrigeration box 23. And with the setting of the heat conduction fins 26, the contact area between the refrigerating end of the semiconductor refrigeration sheet 25 and the air in the refrigeration box 23 can be increased, thereby improving the heat conduction efficiency and the refrigeration effect on the air in the refrigeration box 23. So that after the fan 24 blows the external gas into the refrigeration box 23, it contacts the heat conduction fins 26 to cool the air, and the cooled cold air enters the device box 7 to efficiently cool the halogen lamp 8, avoiding the influence of the high temperature of the halogen lamp 8 on its working performance and preventing the damage of the halogen lamp 8 due to high temperature, and improving the service life of the halogen lamp 8.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A melon maturity detection device, characterized in that: It includes a chain plate conveyor (1). A number of mounting seats (2) are fixedly connected to the chain plates of the chain plate conveyor (1). The number of the mounting seats (2) are equidistantly installed on the chain plates of the chain plate conveyor (1). A moving detection frame (3) is fixedly connected to the mounting seat (2). A centering positioning mechanism is arranged inside the moving detection frame (3). And a first light inlet (4) is formed on the back of the moving detection frame (3). Mounting frames (5) are fixedly connected to both the front and the back of the chain plate conveyor (1). A fixed detection frame (6) is fixedly connected between the two mounting frames (5). A device box (7) is fixedly connected to the back of the fixed detection frame (6). A halogen lamp (8) is fixedly installed inside the device box (7). A second light inlet (9) is formed on the back of the fixed detection frame (6) at a position corresponding to the halogen lamp (8). A light energy receiver (10) is embedded at a position corresponding to the halogen lamp (8) on the front of the fixed detection frame (6). And a spectrometer (11) and a human-machine operation panel (12) are further arranged on the fixed detection frame (6). A heat dissipation port (13) is formed on one side of the device box (7). A ventilation and heat dissipation mechanism is arranged on the other side of the device box (7).

2. The melon ripeness detection device according to claim 1, characterized in that: A transparent partition plate (14) is fixedly connected to the inner wall of the second light inlet (9).

3. The melon ripeness detection device according to claim 1, characterized in that: The centering positioning mechanism includes a guide block (15) fixedly installed at the bottom of the inner wall of the moving detection frame (3). The top of the guide block (15) is an inclined surface. The lower side of the inclined surface is close to the second light inlet (9). An inclined chute (16) is formed on the top of the guide block (15). A slider (17) is slidably connected inside the chute (16). A bowl-shaped positioning seat (18) is fixedly connected to the top of the slider (17) through a connecting rod. A flexible return spring (19) is fixedly connected to the side of the slider (17) close to the second light inlet (9).

4. The melon ripeness detection device according to claim 1, characterized in that: The light energy receiver (10) and the spectrometer (11) are connected by an optical fiber. The spectrometer (11) and the human-machine operation panel (12) are connected by a data transmission line.

5. The melon ripeness detection device according to claim 1, characterized in that: A dust-proof net (20) is fixedly connected to the inner wall of the heat dissipation port (13).

6. The melon ripeness detection device according to claim 1, wherein: The ventilation and heat dissipation mechanism includes a PLC controller (21), a temperature sensor (22) and a refrigeration box (23) fixedly installed on the device box (7). The detection probe of the temperature sensor (22) is located inside the device box (7). The refrigeration box (23) is opposite to the heat dissipation port (13) and is fixedly communicated with the device box (7). A blower (24) is fixedly installed on the side of the refrigeration box (23) away from the device box (7).

7. The melon ripeness detection device according to claim 6, characterized in that: A semiconductor refrigeration sheet (25) is embedded on the refrigeration box (23). The refrigerating end of the semiconductor refrigeration sheet (25) is located inside the refrigeration box (23). And the heat dissipation end of the semiconductor refrigeration sheet (25) is located outside the refrigeration box (23).

8. The melon ripeness detection device according to claim 7, characterized in that: A cold conduction fin (26) is bonded to the refrigerating end of the semiconductor refrigeration sheet (25). And a heat conduction fin (27) is bonded to the heat dissipation end of the semiconductor refrigeration sheet (25).

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