Citrus multi-quality detection system

Abstract

The invention provides a citrus multi-quality detection system, and belongs to the field of citrus quality detection. The system comprises a juicing module, a pipetting module, a detection module and a control display module, the juicing module comprises a juicer and a beaker, the beaker is arranged below an outlet of the juicer, the detection module comprises a cuvette and a spectrograph, the pipetting module is used for sucking orange juice in the beaker and conveying the orange juice into the cuvette, and the control display module is used for displaying the orange juice in the cuvette. The spectrograph is used for detecting the absorbance of the orange juice in the cuvette, and the spectrograph is in signal connection with the control display module. By adopting the citrus multi-quality detection system provided by the embodiment of the invention, the problems of relatively low accuracy and relatively low detection efficiency in the prior art can be solved.

Description

Technical Field

[0001] The present invention relates to the field of citrus quality detection, and in particular to a citrus multi-quality detection system. Background Art

[0002] With socioeconomic development and rising living standards, consumers are becoming increasingly demanding about the quality of citrus fruits. They focus not only on appearance but also on internal qualities such as flavor and nutritional value. Key evaluation indicators for citrus internal quality include sugar content (SSC), total acidity (TA), and vitamin C (VC) content, which play a decisive role in the taste and nutritional value of citrus fruits.

[0003] In existing technologies, testing for these indicators typically involves juicing citrus fruits and then testing the juice using chemical titration or a spectrometer. This involves manually squeezing the juice, transferring the juice to a testing area, and then testing the juice using either manual titration with chemical reagents or a handheld spectrometer.

[0004] The citrus quality detection method in the existing technology usually adopts manual operation of each step, which may cause errors during the manual operation, resulting in low accuracy of the detection results. In addition, it is impossible to perform multiple detection steps simultaneously when operated by a single person. The operation is cumbersome and time-consuming, especially when multiple tests are performed, and the detection efficiency is low. Summary of the Invention

[0005] The present invention provides a citrus multi-quality detection system that can solve the problems of low accuracy and low detection efficiency in the existing technology. The technical solution is as follows:

[0006] A citrus multi-quality detection system includes: a juicing module, a pipetting module, a detection module and a control and display module.

[0007] The juicing module includes a juicer and a beaker, which is arranged below the outlet of the juicer. The detection module includes a cuvette and a spectrometer. The pipetting module is used to absorb the citrus juice in the beaker and transport it to the cuvette. The spectrometer is used to detect the absorbance of the citrus juice in the cuvette. The spectrometer is signal-connected to the control and display module.

[0008] Optionally, the pipetting module includes a beaker support rod, a first motor, a liquid taking device and a first guide rail, the first motor is connected to the beaker through the beaker support rod, the first motor is used to drive the beaker to move between a juicing station and a liquid taking station, the juicing station is located below the outlet of the juicer, the liquid taking device has a liquid taking station and a dripping station, the liquid taking station is located above the liquid taking station, the dripping station is located above the cuvette, the first guide rail is horizontally arranged between the liquid taking station and the dripping station, the liquid taking device is slidably arranged on the first guide rail, the liquid taking device includes a driving mechanism and a vertically arranged conductive pipette tip, the driving mechanism drives the conductive pipette tip to move vertically.

[0009] Optionally, the juicer is provided with a filter, and the filter is arranged between the juicer outlet and the beaker on the liquid collection station.

[0010] Optionally, the beaker support rod is horizontally arranged, the beaker is arranged at one end of the beaker support rod, the motor shaft of the first motor is vertically arranged, and the end of the beaker support rod away from the beaker is fixedly arranged on the motor shaft of the first motor. A horizontally arranged first bevel gear is provided on the motor shaft of the first motor, and the juicer is provided with a vertically arranged second bevel gear, a first gear and a second gear, the second bevel gear is meshed with the first bevel gear, the second bevel gear rotates coaxially with the first gear, the first gear is meshed with the second gear, and the filter is connected to the end face of the second gear.

[0011] Optionally, a water tank is provided at the bottom of the filter screen.

[0012] Optionally, a vibration base is provided at the bottom of the liquid extraction station.

[0013] Optionally, the detection module also includes a second guide rail, a cuvette fixing table, a dark box and an optical fiber. The cuvette is arranged on the cuvette fixing table, and the cuvette fixing table is slidably set on the second guide rail. The second guide rail is passed through the dark box. Mounting holes are opened on both sides of the dark box. The optical fiber is passed through the mounting holes and is arranged toward the cuvette. The optical fiber on one side is connected to the spectrometer, and the optical fiber on the other side is connected to the light source.

[0014] Optionally, a plurality of cuvettes are provided on the cuvette fixing table, and the plurality of cuvettes are evenly spaced apart along the length direction of the second guide rail.

[0015] Optionally, a collimating lens is provided between the optical fiber on the side close to the light source and the cuvette.

[0016] Optionally, a nozzle is provided at the bottom of the conductive pipette tip, and the conductive pipette tip and the nozzle are detachably connected. A nozzle bracket is provided on the dark box, and a placement hole matching the nozzle is opened on the nozzle bracket, and the placement hole is located below the first guide rail.

[0017] The beneficial effects brought about by the technical solution provided by the embodiment of the present invention include at least:

[0018] An embodiment of the present invention provides a citrus multi-quality detection system, which uses a juicer to squeeze citrus juice and then connects it to a beaker. After the citrus juice in the beaker is aspirated into a cuvette through a pipetting module, a spectrometer is used to detect the absorbance of the citrus juice in the cuvette. After the detected data is transmitted to the control and display module, the internal citrus multi-quality parameter prediction model is used to calculate the values of various parameters, such as sugar content, total acid, vitamin C content, etc., and display them. In this embodiment, each module adopts automated operation, and the operator only needs to directly read the parameter values on the control and display module during the detection process, which can effectively solve the problems of low accuracy and low detection efficiency in the existing technology. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 Schematic diagram of the overall structure of the system provided by an embodiment of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall structure of another working state provided by an embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the structure of the juicing module and the pipetting module provided in an embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram of the linkage structure of a beaker and a filter provided in an embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the liquid extraction device provided by an embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the detection module provided by an embodiment of the present invention;

[0026] Figure 7 Schematic diagram of the internal structure of the detection module provided by an embodiment of the present invention;

[0027] Figure 8 This is a schematic diagram of signal transmission provided by an embodiment of the present invention.

[0028] In the figure: 1-juicing module; 11-juicer; 111-filter; 112-water sink; 12-beaker; 2-pipetting module; 21-beaker support rod; 22-first motor; 23-liquid extraction device; 231-driving mechanism; 232-conductive pipette tip; 233-nozzle; 24-first guide rail; 3-detection module; 31-cuvette; 32-spectrometer; 33-second guide rail; 34-cuvette fixing table; 35-darkroom; 351-mounting hole; 352-adjustable collimator bracket; 36-optical fiber; 37-collimating lens; 4-display module; 51-first bevel gear; 52-second bevel gear; 53-first gear; 54-second gear; 55-third gear; 6-vibration base; 7-nozzle bracket; 71-placement hole. DETAILED DESCRIPTION

[0029] To make the objectives, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0030] Figure 1 Schematic diagram of the overall structure of the system provided by an embodiment of the present invention; Figure 2 This is a schematic diagram of the overall structure of another working state provided by an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the juicing module and the pipetting module provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the linkage structure of a beaker and a filter provided in an embodiment of the present invention; Figure 5 Schematic diagram of the structure of the liquid extraction device provided by an embodiment of the present invention;

[0031] Figure 6 Schematic diagram of the structure of the detection module provided by an embodiment of the present invention; Figure 7 Schematic diagram of the internal structure of the detection module provided by an embodiment of the present invention; Figure 8 Schematic diagram of signal transmission provided by an embodiment of the present invention. Figures 1 to 8 The citrus multi-quality detection system shown in the figure includes: a juicing module 1, a pipetting module 2, a detection module 3 and a control and display module 4. The juicing module 1 includes a juicer 11 and a beaker 12. The beaker 12 is arranged below the outlet of the juicer 11. The detection module 3 includes a cuvette 31 and a spectrometer 32. The pipetting module 2 is used to absorb the citrus juice in the beaker 12 and transport it to the cuvette 31. The spectrometer 32 is used to detect the absorbance of the citrus juice in the cuvette 31. The spectrometer 32 is signal-connected to the control and display module 4.

[0032] For example, in this embodiment of the present invention, the juicer 11 can be an MKK-300W model, which achieves efficient juice-residue separation, a high juice yield, and a stable structure. It can support long-term continuous juicing and can be cleaned directly by adding water after juicing. The control and display module 4 is primarily composed of an industrial computer, a display screen, a programmable logic controller, a motor driver, a stepper motor, and limit switches. The programmable logic controller is a DVP28SV11R2 model and is equipped with an extended Ethernet module, DVPEN01. Through various communication interfaces, it enables data exchange and human-computer interaction with each module, enabling functions such as starting and stopping the entire machine, operating each module independently, and adjusting parameters. This configuration makes the entire detection system intelligent and easy to operate, improving the overall system performance and user experience. The industrial computer uses an Intel i5-12450H CPU with 16GB of RAM. It has powerful data analysis and processing capabilities, real-time modeling, and can communicate with the programmable logic controller in real time. A 7-inch resistive touch screen is connected via a universal serial bus interface as the display module. The peeled citrus is placed in the juicer 11. After juicing, the citrus juice flows from the outlet of the juicer 11 to the beaker 12 for storage. Then, the pipetting module 2 is started to absorb the citrus juice in the beaker 12 and transport it to the cuvette 31. Then, a light source is used to illuminate the cuvette 31 on one side of the cuvette 31, and the absorbance of the citrus juice in the cuvette 31 is detected by the spectrometer 32 on the other side of the cuvette 31. The detected absorbance is then transmitted to the control and display module 4, and the citrus multi-quality parameter prediction model inside the control and display module 4 is used to calculate the sugar content, total acidity, The parameter values such as vitamin C content are directly displayed on the display of the control display module 4. The operator only needs to read the parameter values on the control display module 4 to judge the quality of the citrus. In the whole detection process, the operator only needs to operate the procedures of putting the citrus and reading the data. Compared with the traditional technology, the operator needs to manually operate the detection process of each link. The implementation of the present invention reduces manual intervention through automatic control, thereby ensuring the accuracy of the detection, and thereby improving the degree of automation and detection efficiency of the system.

[0033] An embodiment of the present invention provides a citrus multi-quality detection system, which uses a juicer to squeeze citrus juice and then connects it to a beaker 12. After the citrus juice in the beaker 12 is aspirated into a cuvette 31 through a pipetting module 2, a spectrometer 32 is used to detect the absorbance of the citrus juice in the cuvette 31. After the detected data is transmitted to the control and display module 4, the internal citrus multi-quality parameter prediction model is used to calculate the values of various parameters, such as sugar content, total acid, vitamin C content, etc., and display them. In this embodiment, each module adopts automated operation, and the operator only needs to directly read the parameter values on the control and display module 4 during the detection process, which can effectively solve the problems of low accuracy and low detection efficiency in the existing technology.

[0034] Optionally, the pipetting module 2 includes a beaker support rod 21, a first motor 22, a liquid taking device 23 and a first guide rail 24. The first motor 22 is connected to the beaker 12 through the beaker support rod 21. The first motor 22 is used to drive the beaker 12 to move between the juicing station and the liquid taking station. The juicing station is located below the outlet of the juicer 11. The liquid taking device 23 has a liquid taking station and a dripping station. The liquid taking station is located above the liquid taking station, and the dripping station is located above the cuvette 31. The first guide rail 24 is horizontally arranged between the liquid taking station and the dripping station. The liquid taking device 23 is slidably arranged on the first guide rail 24. The liquid taking device 23 includes a driving mechanism 231 and a vertically arranged conductive pipette tip 232. The driving mechanism 231 drives the conductive pipette tip 232 to move vertically.

[0035] For example, in an embodiment of the present invention, Figure 1 As shown in the figure, the beaker 12 is located at the juice extraction station, and the liquid extraction device 23 is located at the liquid extraction station; Figure 2 As shown, the beaker 12 is located at the liquid-waiting station, and the liquid-taking device 23 is located at the dripping station. A motor is provided at one end of the first guide rail 24, and a screw is provided inside the first guide rail 24 along its length. The motor is connected to one end of the screw, and the liquid-taking device 23 is threadedly connected to the screw. The motor can control the screw to rotate, thereby controlling the liquid-taking device 23 to slide on the first guide rail 24. The pipetting process is divided into two parts. One part is the movement of the beaker 12, which rotates from the juicing station to the liquid-waiting station; the other part is the movement of the liquid-taking device 23. At the liquid-taking station, the conductive pipette tip 232 is driven downward by the driving mechanism 231, and then rises again after the liquid is taken. Thereafter, the liquid-taking device 23 moves on the first guide rail 24 to the dripping station, where the conductive pipette tip 232 is driven downward by the driving mechanism 231 to drip the citrus juice into the cuvette 31. By setting up this structure, citrus juice can be transferred from beaker 12 to cuvette 31 for testing with simple rotation and linear motion. This simple structure and convenient operation reduce the possibility of failure during automated movement, thereby improving the stability of the system. Drive mechanism 231 can be selected from the Hamilton-ZEUS-5mL model of Hamilton Medical Corporation of Switzerland. It has a built-in Z-axis and can set parameters such as the aspiration method, aspiration volume, and displacement. It communicates with the host computer via the controller local area network bus protocol, ensuring accurate and reliable data transmission. Through this setting, citrus juice can be accurately transferred from beaker 12 to cuvette 31, providing stable and accurate sample delivery for subsequent spectral detection, ensuring the consistency and accuracy of the detection process.

[0036] Optionally, the juicer 11 is provided with a filter 111 , and the filter 111 is arranged between the outlet of the juicer 11 and the beaker 12 on the liquid collection station.

[0037] For example, in an embodiment of the present invention, Figure 3 and Figure 4 As shown, the filter 111 can adopt an 80-mesh specification. By setting the filter 111, the pulp after juicing can be filtered so that only citrus juice exists in the beaker 12, preventing the presence of pulp in the citrus juice and affecting the detection results in subsequent spectral detection, thereby improving the accuracy of the test results of this system.

[0038] Optionally, the beaker support rod 21 is arranged horizontally, the beaker 12 is arranged at one end of the beaker support rod 21, the motor shaft of the first motor 22 is arranged vertically, and the end of the beaker support rod 21 away from the beaker 12 is fixedly arranged on the motor shaft of the first motor 22, and a horizontally arranged first bevel gear 51 is provided on the motor shaft of the first motor 22. The juicer 11 is provided with a vertically arranged second bevel gear 52, a first gear 53 and a second gear 54, the second bevel gear 52 is meshed with the first bevel gear 51, the second bevel gear 52 rotates coaxially with the first gear 53, the first gear 53 is meshed with the second gear 54, and the filter 111 is connected to the end face of the second gear 54.

[0039] For example, in an embodiment of the present invention, Figure 3 and Figure 4 As shown, the beaker 12 is connected to the first motor 22 via the beaker support rod 21. The motor shaft of the first motor 22 is set vertically, and the filter 111 has an arc-shaped structure. As shown in the figure, when the motor shaft of the first motor 22 rotates counterclockwise, the beaker 12 also rotates counterclockwise from the juicing station to the liquid extraction station. At this time, the first bevel gear 51 drives the second bevel gear 52 and the first gear 53 to rotate clockwise, driving the second gear 54 to rotate, thereby causing the filter 111 located on the end face of the second gear 54 to flip, so that the pulp filtered in the filter 111 can be poured out. Proper cleaning of the filter 111 can prevent the pulp from clogging the filter 111 and maintain the effectiveness of the filter 111. A third gear 55 can also be set between the first gear 53 and the second gear 54 for transmission connection. By setting the third gear 55, the transmission distance can be increased to prevent the filter 111 from interfering with other mechanical structures during the rotation process. By setting up this structure, only one first motor 22 can be used to realize the transfer of the beaker 12 between the two stations while turning the filter 111, thereby improving the use efficiency of the first motor 22 and the transmission efficiency of the system.

[0040] Optionally, a water tank 112 is provided at the bottom of the filter screen 111 .

[0041] For example, in an embodiment of the present invention, Figure 3As shown, in the process of flipping the filter 111 to pour out the pulp, a water tank 112 can be set at the bottom of the filter 111 to hold the filtered pulp, and can also be used to collect citrus juice overflowing from the beaker 12. By setting up the water tank 112, it is convenient to clean the system later.

[0042] Optionally, a vibration base 6 is provided at the bottom of the liquid extraction station.

[0043] For example, in an embodiment of the present invention, Figure 1 and Figure 2 As shown, during juicing, multiple citrus fruits are typically placed in the juicing station for mixed juicing. This is used to test a batch of citrus fruits. Increasing the number of test samples can make the test results closer to the actual quality of the batch of citrus fruits. After the beaker 12 is moved from the juicing station to the liquid collection station, the vibrating base 6 is activated to vibrate and shake the beaker 12, thereby thoroughly mixing the citrus juice in the beaker. When the citrus juice in the beaker 12 is then drawn and tested, it is the citrus juice of multiple citrus fruits that has been thoroughly mixed. This is equivalent to increasing the number of test samples. The test results obtained at this time will be closer to the average quality of the batch of citrus fruits, thereby further improving the accuracy of the detection of the present system.

[0044] Optionally, the detection module 3 also includes a second guide rail 33, a cuvette fixing platform 34, a dark box 35 and an optical fiber 36. The cuvette 31 is set on the cuvette fixing platform 34, and the cuvette fixing platform 34 is slidably set on the second guide rail 33. The second guide rail 33 is passed through the dark box 35. Mounting holes 351 are opened on both sides of the dark box 35. The optical fiber 36 is passed through the mounting holes 351 and is set toward the cuvette 31. The optical fiber 36 on one side is connected to the spectrometer 32, and the optical fiber 36 on the other side is connected to the light source.

[0045] For example, in an embodiment of the present invention, Figure 6 and Figure 7As shown, the optical fiber 36 on the left is connected to the spectrometer 32, and the optical fiber 36 on the right is connected to the light source. A motor is provided at one end of the second guide rail 33, and a screw rod is provided inside the second guide rail 33 along the length direction. The motor is connected to one end of the screw rod, and the cuvette fixing platform 34 is threadedly connected to the screw rod. The screw rod can be controlled to rotate by the motor, thereby controlling the cuvette fixing platform 34 to slide on the second guide rail 33. The cuvette 31 is fixed on the cuvette fixing platform 34, so that the cuvette 31 can slide on the second guide rail 33. By arranging a dark box 35, a light-shielding condition can be provided for the detection of the spectrometer, so as to avoid external light from affecting the detection result of the spectrometer 32. In the process of dripping, the cuvette 31 is on the second guide rail 33 outside the dark box 35. After dripping, the cuvette 31 is moved to the inside of the dark box 35 by starting the motor so that the cuvette fixing platform 34 carries the cuvette 31. Optical fiber 36 can be an FC-UVIR600-1-ME, and the light source can be an AvaLight-HAL-S-MINI tunable halogen tungsten lamp with a wavelength range of 400 to 2500 nm, which can be directly connected to the FC-UVIR600-1-ME optical fiber. Optical fibers 36 on either side of the dark box 35 are connected to a light source on one side and a spectrometer 32 on the other. First, spectral data of a dark background reference is collected, followed by spectral data of a blank cuvette 31. Finally, the light source illuminates the citrus juice area on the cuvette 31, and spectrometer 32 collects spectral data. The absorbance is the logarithm of the ratio of the actual spectral data minus the spectral data of the dark background reference to the white reference. This absorbance data is then transmitted to the control and display module. By setting up this structure, the cuvette 31 can move inside and outside the dark box 35. When it is outside the dark box 35, the dripping process can be carried out to prevent the dark box 35 from interfering with the liquid taking device 23. After the dripping is completed, it can be moved back into the dark box 35 to avoid light, thereby improving the accuracy of the detection results of the spectrometer 32. Figure 7 As shown, an adjustable collimator bracket 352 is also provided inside the dark box 35. The adjustable collimator bracket 352 consists of a horizontal plate and a vertical plate. The horizontal plate is fixedly connected to the inner top of the dark box 35. Two vertical plates are provided, spaced apart on either side of the cuvette. The vertical plates are provided with mounting slots that match the optical fiber 36. The two vertical plates are slidably mounted on the horizontal plate. By sliding the vertical plates, the distance between the optical fiber 36 and the cuvette 31 can be adjusted, thereby adjusting the optical path. This allows the system to adapt to the detection requirements of cuvettes 31 with different optical path lengths and other samples, thereby improving the adaptability of the system.

[0046] Optionally, a plurality of cuvettes 31 are provided on the cuvette fixing platform 34 , and the plurality of cuvettes 31 are evenly spaced apart along the length direction of the second guide rail 33 .

[0047] For example, in an embodiment of the present invention, during a single test, the cuvette holder 34 can be controlled to slide on the second guide rail 33, sequentially moving multiple cuvettes 31 below the dripping station. Citrus juice can then be dripped into each of the cuvettes 31. Spectral testing can then be performed on the citrus juice in each of the cuvettes 31. Finally, the average of the multiple test values is calculated, thereby increasing the number of samples tested and the reliability of the test results. By arranging multiple cuvettes 31 on the cuvette holder 34, the test results can be more closely aligned with the average level of the current batch of citrus fruits, further improving the accuracy of the test results.

[0048] Optionally, a collimating lens 37 is provided between the optical fiber 36 on the side close to the light source and the cuvette 31 .

[0049] For example, in an embodiment of the present invention, Figure 7 As shown, by setting the collimating lens 37, the light intensity of the light source can be significantly enhanced and the light can be precisely focused on the citrus juice area in the middle of the cuvette 31, avoiding the loss of light intensity and the influence of the boundary of the cuvette 31 on the spectral detection, and further improving the accuracy of the detection results.

[0050] Optionally, a nozzle 233 is provided at the bottom of the conductive pipette tip 232, and the conductive pipette tip 232 and the nozzle 233 are detachably connected. A nozzle bracket 7 is provided on the dark box 35, and a placement hole 71 matching the nozzle 233 is opened on the nozzle bracket 7, and the placement hole 71 is located below the first guide rail 24.

[0051] For example, in an embodiment of the present invention, Figure 5 and Figure 7 As shown, the conductive pipette tip 232 and nozzle 233 are designed to be detachably connected, making them easily separable. During liquid collection, the conductive pipette tip 232 is first moved to the nozzle holder 7 to draw liquid from the nozzle 233, then moved to the liquid collection station to continue collecting liquid. After the liquid droplet process is complete, the conductive pipette tip 232 is moved back to the nozzle holder 7, where the nozzle 233 is placed on the nozzle holder 7. The nozzle holder 7 may be provided with multiple placement holes 71 to accommodate multiple nozzles 233. After one test, a nozzle 233 may contain residual citrus juice. Using it directly in the next test could affect the results of the next test. This design allows the conductive pipette tip 232 to cleanly draw liquid from the nozzle 233 during each test, preventing residual citrus juice from affecting the next sample tested, thereby further improving the accuracy of the test results.

[0052] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the art to which the invention belongs. The terms "first", "second" and similar words used in the patent specification and claims of the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. Similarly, terms such as "a" or "an" do not indicate a quantitative limitation, but rather indicate the presence of at least one. Terms such as "include" or "comprising" mean that the elements or objects appearing before "include" or "comprising" include the elements or objects listed after "include" or "comprising" and their equivalents, and do not exclude other elements or objects. Terms such as "connected" or "connected" are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. Terms such as "upper", "lower", "left", and "right" are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0053] The above descriptions are merely optional embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A citrus multi-quality detection system, characterized in that: include: Juicing module (1), pipetting module (2), detection module (3) and control display module (4), The juicing module (1) comprises a juicer (11) and a beaker (12), wherein the beaker (12) is arranged below the outlet of the juicer (11); the detection module (3) comprises a cuvette (31) and a spectrometer (32); the pipetting module (2) is used to absorb the citrus juice in the beaker (12) and transport it to the cuvette (31); the spectrometer (32) is used to detect the absorbance of the citrus juice in the cuvette (31); and the spectrometer (32) is signal-connected to the control and display module (4).

2. A citrus multi-quality detection system according to claim 1, characterized in that: The pipetting module (2) comprises a beaker support rod (21), a first motor (22), a liquid taking device (23) and a first guide rail (24), wherein the first motor (22) is connected to the beaker (12) via the beaker support rod (21), and the first motor (22) is used to drive the beaker (12) to move between a juicing station and a station to be taken liquid, wherein the juicing station is located below the outlet of the juicer (11), and the liquid taking device (23) has a liquid taking station and a liquid dripping station. The liquid taking station is located above the liquid to be taken station, the liquid dropping station is located above the cuvette (31), the first guide rail (24) is horizontally arranged between the liquid taking station and the liquid dropping station, the liquid taking device (23) is slidably arranged on the first guide rail (24), and the liquid taking device (23) includes a driving mechanism (231) and a vertically arranged conductive pipette tip (232), and the driving mechanism (231) drives the conductive pipette tip (232) to move vertically.

3. The citrus multi-quality detection system according to claim 2, characterized in that: The juicer (11) is provided with a filter (111), and the filter (111) is arranged between the outlet of the juicer (11) and the beaker (12) on the liquid collection station.

4. The citrus multi-quality detection system according to claim 3, characterized in that: The beaker support rod (21) is arranged horizontally, the beaker (12) is arranged at one end of the beaker support rod (21), the motor shaft of the first motor (22) is arranged vertically, and the end of the beaker support rod (21) away from the beaker (12) is fixedly arranged on the motor shaft of the first motor (22), and a horizontally arranged first bevel gear (51) is provided on the motor shaft of the first motor (22). The juicer (11) is provided with a vertically arranged second bevel gear (52), a first gear (53) and a second gear (54), the second bevel gear (52) is meshed with the first bevel gear (51), the second bevel gear (52) and the first gear (53) rotate coaxially, the first gear (53) is meshed with the second gear (54), and the filter (111) is connected to the end face of the second gear (54).

5. The citrus multi-quality detection system according to claim 4, characterized in that: A water tank (112) is provided at the bottom of the filter screen (111).

6. The citrus multi-quality detection system according to claim 2, characterized in that: A vibration base (6) is provided at the bottom of the liquid collection station.

7. The citrus multi-quality detection system according to claim 2, characterized in that: The detection module (3) further comprises a second guide rail (33), a cuvette fixing platform (34), a dark box (35) and an optical fiber (36); the cuvette (31) is arranged on the cuvette fixing platform (34); the cuvette fixing platform (34) is slidably arranged on the second guide rail (33); the second guide rail (33) is passed through the dark box (35); mounting holes (351) are provided on both sides of the dark box (35); the optical fiber (36) is passed through the mounting holes (351) and is arranged toward the cuvette (31); the optical fiber (36) on one side is connected to the spectrometer (32); and the optical fiber (36) on the other side is connected to a light source.

8. The citrus multi-quality detection system according to claim 7, characterized in that: A plurality of cuvettes (31) are arranged on the cuvette fixing platform (34), and the plurality of cuvettes (31) are evenly spaced along the length direction of the second guide rail (33).

9. The citrus multi-quality detection system according to claim 7, characterized in that: A collimating lens (37) is provided between the optical fiber (36) on the side close to the light source and the cuvette (31).

10. The citrus multi-quality detection system according to claim 7, characterized in that: A nozzle (233) is provided at the bottom of the conductive pipette tip (232), and the conductive pipette tip (232) and the nozzle (233) are detachably connected. A nozzle bracket (7) is provided on the dark box (35), and a placement hole (71) matching the nozzle (233) is provided on the nozzle bracket (7), and the placement hole (71) is located below the first guide rail (24).

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