Jasmine tea pesticide residue spectrum determination equipment and determination method thereof

Abstract

The invention discloses jasmine tea pesticide residue spectrum determination equipment and a determination method thereof, and relates to the technical field of pesticide residue detection equipment.The jasmine tea pesticide residue spectrum determination equipment comprises a determination mechanism and a vibration mechanism, the side face of the determination mechanism is fixedly connected with a detection solution preparation mechanism, and the side face of the detection solution preparation mechanism is fixedly connected with a detection solution feeding mechanism; the vibrating mechanism is fixedly connected with the interior of the measuring mechanism, and a sample placing table is placed at the upper part of the vibrating mechanism. According to the invention, the liquid outlet head is moved to an accurate position to avoid the dripping phenomenon when the solution is injected, the solution required by detection is accurately and quantitatively injected through the quantitative liquid adding pump, and the accurate solution adding amount can ensure that the extracted solution is in full contact with a sample, so that the extraction process is closer to an ideal state; the pesticide molecules are effectively dissolved out of a jasmine tea sample, so that the accuracy and reliability of a detection result are improved.

Description

Technical Field

[0001] The invention relates to the technical field of pesticide residue detection equipment, in particular to a jasmine tea pesticide residue spectrum determination equipment and a determination method thereof. Background Art

[0002] As one of China's traditional famous teas, jasmine tea is deeply loved by consumers for its unique aroma and taste, and occupies an important position in the domestic and international tea markets. The production process of jasmine tea involves the planting of jasmine flowers and the processing of tea. In order to ensure the growth and yield of jasmine flowers and prevent pests and diseases from invading tea, the use of pesticides is relatively common in agricultural production. However, the unreasonable use of pesticides or excessive residues will not only affect the quality and safety of tea, but may also pose a potential threat to consumers' health. Therefore, accurate detection of pesticide residues in jasmine tea is crucial. Spectrometric measurement equipment is a commonly used detection equipment when detecting pesticide residues in jasmine tea.

[0003] For example, publication number: CN218646842U discloses “a pesticide residue detection device”, which includes a spectrometer, a frame and an interactive touch-screen all-in-one machine, wherein a temperature control box is fixed at one end inside the frame.

[0004] However, in the prior art, when using spectral measurement equipment to detect pesticide residues in jasmine tea, professional sample preparation personnel are required to perform the entire process in the process of sample preparation. The operation method required by such spectral measurement equipment will cause excessive workload for operators. During the operation, especially in the steps of preparing buffer solutions and extraction solutions, a large number of repetitive operations can easily cause fatigue and inattention of operators, resulting in negligence and misreading of the scale when using measuring tools to measure reagents, and dripping when transferring reagents, resulting in errors. As the number of operations increases, , errors will continue to accumulate, resulting in inaccurate solution preparation. Inaccurate preparation of the pH value of the buffer solution will affect the chemical stability of the pesticide. Organophosphorus pesticides are prone to hydrolysis reactions in acidic or alkaline environments. If the pH value of the buffer solution deviates from the target value, the detection system will be too acidic or alkaline. The pesticide may be partially hydrolyzed, resulting in the detected pesticide residue being lower than the actual content. At the same time, inaccurate concentration or composition of the extraction solution will directly affect the extraction efficiency of the pesticide residue. When the amount of extraction solvent is insufficient, the pesticide residue in jasmine tea may not be fully dissolved and extracted, affecting the test results. Summary of the invention

[0005] The object of the present invention is to provide a spectral determination device for pesticide residues in jasmine tea and a determination method thereof, so as to solve the problem that in the prior art proposed in the above-mentioned background technology, professional sample preparation personnel are required to perform the whole process operation in the link of sample preparation for detection, and the operation mode required for such spectral determination equipment will cause excessive workload for operators. During the operation process, especially in the steps of preparing buffer solutions and extraction solutions, a large number of repetitive operations can easily cause fatigue and inattention of operators, resulting in negligence and misreading of the scale when using measuring tools to measure reagents, and dripping can easily occur when transferring reagents, resulting in errors, and ultimately leading to the problem of deviation in detection results.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a spectral determination device for pesticide residues in jasmine tea, comprising a determination mechanism and a vibration mechanism, wherein a detection solution preparation mechanism is fixedly connected to the side of the determination mechanism, a detection solution liquid feeding mechanism is fixedly connected to the side of the detection solution preparation mechanism, the vibration mechanism is fixedly connected to the inside of the determination mechanism, and a sample placement table is placed on the top of the vibration mechanism, a sample preparation test tube is placed inside the sample placement table, the detection solution liquid feeding mechanism is used to quantitatively transport the detection solution inside the detection solution preparation mechanism to the inside of the sample preparation test tube, the detection solution preparation mechanism comprises a preparation box, and the preparation box is provided with a sample placement table. A partition is provided inside the box, and the partition divides the preparation box into storage cavity No. 1 and storage cavity No. 2. A stirring mechanism is fixedly connected to the bottom of the preparation box, and the stirring mechanism is used to simultaneously stir the solutions in storage cavity No. 1 and storage cavity No. 2. A moving mechanism is fixedly connected to the upper part of the measuring mechanism, and the moving mechanism is used to adjust the position of the liquid outlet head in the liquid feeding mechanism of the detection solution. The vibration mechanism is used to vibrate the sample preparation test tube placed inside the sample placement table, and the vibration mechanism is used to adjust the sample preparation test tube placed inside the sample placement table and cooperate with the moving mechanism to make the liquid outlet head inject the solution into the sample preparation test tube.

[0007] Preferably, the measuring mechanism comprises an operating box, an operating table is fixedly connected to the upper portion of the operating box, and a main body of the spectrometer is fixedly connected to the upper portion of the operating table.

[0008] Preferably, a No. 1 fixing frame is fixedly connected to the bottom of the preparation box, the No. 1 fixing frame is fixedly connected to the side of the operation box, and a feed pipe is fixedly connected to the upper part of the preparation box.

[0009] Preferably, the stirring mechanism includes a fixed box, which is fixedly connected to the bottom of the preparation box, and a driving motor is installed at the bottom of the fixed box, the output end of the driving motor is fixedly connected to a connecting shaft No. 1, the connecting shaft No. 1 passes through the fixed box and is rotatably connected to the bottom of the preparation box, and the connecting shaft No. 1 is located inside the storage cavity No. 1 of the preparation box, a stirring blade No. 1 is fixedly connected to the surface of the connecting shaft No. 1, and a stirring impeller No. 1 is fixedly connected to the surface of the connecting shaft No. 1, and the stirring impeller No. 1 is located below the stirring blade No. 1.

[0010] Preferably, a No. 2 connecting shaft is rotatably connected inside the fixed box, the No. 2 connecting shaft passes through the fixed box and is rotatably connected to the bottom of the preparation box, and the No. 2 connecting shaft is located inside the No. 2 storage cavity of the preparation box, a No. 2 stirring blade is fixedly connected to the surface of the No. 2 connecting shaft, and a No. 2 stirring impeller is fixedly connected to the surface of the No. 2 connecting shaft, and the No. 2 stirring impeller is located below the No. 2 stirring blade, a No. 2 pulley is fixedly connected to the surface of the No. 2 connecting shaft, a No. 1 pulley is fixedly connected to the surface of the No. 1 connecting shaft, a connecting belt is movably connected to the surface of the No. 1 pulley, and the connecting belt is movably connected to the No. 2 pulley.

[0011] Preferably, two detection solution feeding mechanisms are installed on the side of the operation box, one of the detection solution feeding mechanisms is fixedly connected to the No. 1 storage cavity of the preparation box, and the other detection solution feeding mechanism is fixedly connected to the No. 2 storage cavity of the preparation box. The detection solution feeding mechanism includes a quantitative liquid adding pump, and a No. 1 connecting pipe and a No. 2 connecting pipe are respectively installed at the ends of the quantitative liquid adding pump. The No. 1 connecting pipe is fixedly connected to the preparation box, and the end of the No. 2 connecting pipe is fixedly connected to the liquid outlet head.

[0012] Preferably, the moving mechanism includes a No. 2 fixed frame, which is fixedly connected to the operating table, and a servo motor is installed at one end of the No. 2 fixed frame, the output end of the servo motor is fixedly connected to a screw, a screw block is threadedly connected to the surface of the screw, a fixed plate is fixedly connected to the bottom of the screw block, the bottom of the fixed plate is fixedly connected to the liquid outlet head, and a visual recognition system is installed at the bottom of the fixed plate, the visual recognition system is located on the side of the liquid outlet head, and the visual recognition system is externally connected to an intelligent control system, the intelligent control system is used to control the detection solution loading mechanism, the moving mechanism, the vibration mechanism and the auxiliary mechanism, the visual recognition system is used to identify the position of the liquid outlet head and the sample preparation tube, the bottom of the No. 2 fixed frame is fixedly connected to a slide rail, the surface of the slide rail is slidably connected to a slider, the slider is fixedly connected to the fixed plate, and the visual recognition system is used to identify the position of the sample preparation tube on the upper part of the sample placement table.

[0013] Preferably, the vibration mechanism includes a Y-axis moving component, the Y-axis moving component is fixedly connected to the inside of the operating box, and the upper part of the moving end of the Y-axis moving component is fixedly connected to a No. 4 fixing frame, the upper part of the No. 4 fixing frame is fixedly connected to a telescopic rod, the upper part of the telescopic rod is fixedly connected to a connecting plate, the bottom of the connecting plate is fixedly connected to a vibration motor, a spring is provided on the surface of the telescopic rod, one end of the spring is fixedly connected to the No. 4 fixing frame, and the other end of the spring is fixedly connected to the connecting plate, a suction cup fixing component is installed on the upper part of the connecting plate, and the suction cup fixing component is externally connected to a suction cup control system.

[0014] Preferably, the operating box is internally provided with an auxiliary mechanism, the auxiliary mechanism comprising an X-axis moving assembly, the X-axis moving assembly is fixedly connected to the operating box, and a No. 3 fixed frame is fixedly connected to the upper portion of the moving end of the X-axis moving assembly, a clamping table is fixedly connected to the side of the No. 3 fixed frame, a cylinder is fixedly connected to the side of the clamping table, and a clamping plate is fixedly connected to the upper portion of the cylinder.

[0015] A method for measuring jasmine tea pesticide residue spectrum measuring equipment, comprising the following steps:

[0016] S1, respectively putting the solvent and solute required for detection into the first storage cavity and the second storage cavity of the preparation box, and stirring and mixing the solutions in the first storage cavity and the second storage cavity of the preparation box by a stirring mechanism;

[0017] S2, placing the jasmine tea sample inside the sample preparation test tube, determining the location of the sample preparation test tube through a visual recognition system, and automatically controlling the moving mechanism to adjust the position of the liquid outlet head through an external intelligent control system, and controlling the auxiliary mechanism to adjust the position of the sample preparation test tube;

[0018] S3, quantitatively extracting the corresponding solution required for the detection step from the preparation box into the sample preparation tube through the detection solution loading mechanism;

[0019] S4. The solution and sample in the sample preparation tube are vibrated and mixed by a vibration mechanism, and the prepared sample preparation tube is moved to the side of the spectrum detector body by the Y-axis moving assembly. The operator takes out the pesticide extraction solution in the sample preparation tube and places it in the test tube, and then places the test tube in the spectrum detector body to complete the test.

[0020] Compared with the prior art, the present invention has the following beneficial effects:

[0021] 1. In the present invention, a jasmine tea sample is placed inside a sample preparation test tube, and then the sample preparation test tube is inserted into the sample placement table. The position of the sample preparation test tube is determined by a visual recognition system, and the position of the liquid discharge head is automatically controlled by an external intelligent control system. The auxiliary mechanism is controlled to adjust the position of the sample preparation test tube so that the liquid discharge head is accurately moved above the sample preparation test tube. Then, according to the steps of adding the detection solution, the quantitative liquid adding pump is sequentially controlled to sequentially and quantitatively inject the detection solution inside the preparation box into the sample preparation test tube. By moving the liquid discharge head to an accurate position, dripping is avoided when injecting the solution. The solution required for the detection is accurately and quantitatively injected by the quantitative liquid adding pump. The accurate amount of solution added can ensure that the extraction solution is fully in contact with the sample, so that the extraction process is closer to an ideal state, the pesticide molecules are effectively dissolved from the jasmine tea sample, and the accuracy and reliability of the detection results are improved.

[0022] 2. In the present invention, the No. 1 connecting shaft is driven to rotate by a driving motor, and at the same time, the No. 1 stirring blade and the No. 1 stirring impeller are driven to stir the solution required for detection in the No. 1 storage cavity inside the preparation box. At the same time, the No. 1 connecting shaft will drive the No. 1 pulley to rotate, thereby driving the connecting belt and the No. 2 pulley to rotate, and finally driving the No. 2 connecting shaft and the No. 2 stirring blade and the No. 2 stirring impeller fixed on the surface thereof to rotate, thereby stirring the solution required for detection in the No. 2 storage cavity inside the preparation box. By stirring the solvent and the solute, the fusion of the two is accelerated, and at the same time, the uniformity of the solution concentration is improved, thereby improving the accuracy of the detection result;

[0023] 3. In the present invention, after the liquid is injected into the preparation test tube, the connecting plate is driven to vibrate by the vibration motor, so as to mix the sample and solution in the product preparation test tube inside the sample placement table fixed on the upper part of the suction cup fixing assembly, so that the pesticide residue on the surface of the sample is fully mixed with the solution, thereby improving the accuracy of the test result;

[0024] 4. In the present invention, when a large number of samples are tested, the sample placement table is moved to the upper part of the clamping table by the Y-axis moving component. At this time, the cylinder is shortened to drive the clamping plate to clamp and fix the sample placement table. Then the suction cup fixing component and the sample placement table are released, and the new sample placement table is fixed again. The new product preparation tube is installed, and the prepared sample fixed on the surface of the auxiliary mechanism is tested by the measuring mechanism. At the same time, the new test sample can be prepared by the test solution loading mechanism, the moving mechanism and the vibration mechanism. Sample testing and sample preparation can be carried out simultaneously, thereby improving the efficiency of testing. The position of the sample fixed on the upper part of the clamping table is adjusted by the X-axis moving component, which is convenient for the operator to take the sample for testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the first three-dimensional structure of a jasmine tea pesticide residue spectrum determination device of the present invention;

[0026] Figure 2 It is a schematic diagram of the side structure of a jasmine tea pesticide residue spectrum determination device of the present invention;

[0027] Figure 3 This is a schematic diagram of the top view of a jasmine tea pesticide residue spectrum determination device of the present invention;

[0028] Figure 4 This is a second three-dimensional structural schematic diagram of a jasmine tea pesticide residue spectrum determination device of the present invention;

[0029] Figure 5 It is a schematic diagram of the three-dimensional structure of a stirring mechanism in a jasmine tea pesticide residue spectrum determination device of the present invention;

[0030] Figure 6 This is a schematic diagram of the connection structure of a moving mechanism in a jasmine tea pesticide residue spectrum determination device of the present invention;

[0031] Figure 7 This is a schematic diagram of the internal side view of the operating box in a jasmine tea pesticide residue spectrometry device of the present invention;

[0032] Figure 8 for Figure 7 Enlarged structural diagram at A in the middle.

[0033] In the figure: 1. Determination mechanism; 11. Operation box; 12. Operation table; 13. Spectrometer body; 2. Sample placement table; 3. Detection solution preparation mechanism; 31. No. 1 fixed frame; 32. Preparation box; 33. Feed pipe; 4. Detection solution liquid feeding mechanism; 41. Quantitative liquid adding pump; 42. No. 1 connecting pipe; 43. No. 2 connecting pipe; 44. Liquid outlet head; 5. Moving mechanism; 51. No. 2 fixed frame; 52. Servomotor; 53. Screw rod; 54. Screw block; 55. Fixed plate; 56. Slide rail; 57. Sliding block; 6. Auxiliary mechanism; 61. X-axis moving assembly; 62. No. 3 fixed frame Frame; 63, clamping table; 64, cylinder; 65, clamping plate; 7, stirring mechanism; 71, driving motor; 72, fixed box; 73, connecting shaft No. 1; 74, stirring blade No. 1; 75, stirring impeller No. 1; 76, pulley No. 1; 77, connecting belt; 78, pulley No. 2; 79, connecting shaft No. 2; 710, stirring blade No. 2; 711, stirring impeller No. 2; 8, visual recognition system; 9, vibration mechanism; 91, Y-axis moving component; 92, fixed frame No. 4; 93, suction cup fixing component; 94, telescopic rod; 95, spring; 96, connecting plate; 97, vibration motor. DETAILED DESCRIPTION

[0034] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the implementation regulations described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0035] Example 1: Reference Figure 1-Figure 8 As shown: a spectral determination device for pesticide residues in jasmine tea, comprising a determination mechanism 1 and a vibration mechanism 9, wherein a detection solution preparation mechanism 3 is fixedly connected to the side of the determination mechanism 1, a detection solution liquid loading mechanism 4 is fixedly connected to the side of the detection solution preparation mechanism 3, the vibration mechanism 9 is fixedly connected to the inside of the determination mechanism 1, and a sample placement table 2 is placed on the upper part of the vibration mechanism 9, a sample preparation test tube is placed inside the sample placement table 2, the detection solution liquid loading mechanism 4 is used to quantitatively transport the detection solution inside the detection solution preparation mechanism 3 to the inside of the sample preparation test tube, the detection solution preparation mechanism 3 comprises a preparation box 32, a partition is arranged inside the preparation box 32, the partition separates the preparation box 32 into a first storage cavity and a second storage cavity, and a stirring mechanism 7 is fixedly connected to the bottom of the preparation box 32, the stirring mechanism 7 is used to stir the first storage cavity and the solution inside the No. 2 storage cavity are stirred simultaneously, the upper part of the measuring mechanism 1 is fixedly connected with a moving mechanism 5, the moving mechanism 5 is used to adjust the position of the liquid outlet head 44 in the liquid feeding mechanism 4 of the detection solution, the vibration mechanism 9 is used to vibrate the sample preparation test tube placed inside the sample placement table 2, and the vibration mechanism 9 is used to adjust the sample preparation test tube placed inside the sample placement table 2 to cooperate with the moving mechanism 5 to make the liquid outlet head 44 inject the solution into the sample preparation test tube, the measuring mechanism 1 includes an operation box 11, the upper part of the operation box 11 is fixedly connected with an operation table 12, the upper part of the operation table 12 is fixedly connected with a spectrometer main body 13, the bottom of the preparation box 32 is fixedly connected with a No. 1 fixed frame 31, the No. 1 fixed frame 31 is fixedly connected to the side of the operation box 11, and the upper part of the preparation box 32 is fixedly connected with a feed pipe 33;

[0036] Two detection solution feeding mechanisms 4 are installed on the side of the operation box 11, one detection solution feeding mechanism 4 is fixedly connected to the No. 1 storage cavity of the preparation box 32, and the other detection solution feeding mechanism 4 is fixedly connected to the No. 2 storage cavity of the preparation box 32. The detection solution feeding mechanism 4 includes a quantitative liquid adding pump 41, and the ends of the quantitative liquid adding pump 41 are respectively installed with a No. 1 connecting pipe 42 and a No. 2 connecting pipe 43, the No. 1 connecting pipe 42 is fixedly connected to the preparation box 32, and the end of the No. 2 connecting pipe 43 is fixedly connected to the liquid outlet head 44;

[0037] The moving mechanism 5 includes a No. 2 fixed frame 51, which is fixedly connected to the operating table 12, and a servo motor 52 is installed at one end of the No. 2 fixed frame 51, and a screw rod 53 is fixedly connected to the output end of the servo motor 52, and a screw block 54 is threadedly connected to the surface of the screw rod 53, and a fixed plate 55 is fixedly connected to the bottom of the screw block 54, and the bottom of the fixed plate 55 is fixedly connected to the liquid outlet head 44, and a visual recognition system 8 is installed at the bottom of the fixed plate 55, the visual recognition system 8 is located on the side of the liquid outlet head 44, and the visual recognition system 8 is externally connected to an intelligent control system, the intelligent control system is used to control the detection solution liquid loading mechanism 4, the moving mechanism 5, the vibration mechanism 9 and the auxiliary mechanism 6, the visual recognition system 8 is used to identify the position of the liquid outlet head 44 and the sample preparation test tube, the No. 2 fixed frame 51 is fixedly connected to the bottom with a slide rail 56, and a slider 57 is slidably connected to the surface of the slide rail 56, and the slider 57 is fixedly connected to the fixed plate 55, and the visual recognition system 8 is used to identify the position of the sample preparation test tube on the upper part of the sample placement table 2.

[0038] In this embodiment, the solvent and solute required for detection are respectively placed in the No. 1 storage cavity and the No. 2 storage cavity of the preparation box 32, and the solutions in the No. 1 storage cavity and the No. 2 storage cavity of the preparation box 32 are stirred and mixed by the stirring mechanism 7, and the jasmine tea sample is placed in the sample preparation test tube, and then the sample preparation test tube is inserted into the sample placement table 2, and the position of the sample preparation test tube is determined by the visual recognition system 8, and the position of the sample preparation test tube is automatically controlled by the external intelligent control system. The moving mechanism 5 adjusts the position of the liquid outlet head 44, and the auxiliary mechanism 6 adjusts the position of the sample preparation test tube so that the liquid outlet head 44 is accurately moved to the top of the sample preparation test tube, and then according to the steps of adding the detection solution, the quantitative liquid adding pump 41 is controlled in sequence to quantitatively inject the detection solution in the preparation box 32 into the sample preparation test tube in sequence, and the dripping phenomenon is avoided when the solution is injected by moving the liquid outlet head 44 to the accurate position, and the solution required for detection is accurately and quantitatively injected by the quantitative liquid adding pump 41 to avoid dosage deviation;

[0039] When the moving mechanism 5 adjusts the position of the liquid outlet head 44, the servo motor 52 drives the screw rod 53 to rotate, thereby driving the screw block 54 and the fixed plate 55 to move. During the movement of the fixed plate 55, the slider 57 slides along the slide rail 56 to limit the movement of the fixed plate 55, thereby improving the stability of the movement of the fixed plate 55, thereby improving the stability of the liquid outlet head 44 during the movement.

[0040] Embodiment 2: Figure 2 , Figure 4 and Figure 5As shown, the stirring mechanism 7 includes a fixed box 72, which is fixedly connected to the bottom of the preparation box 32, and a driving motor 71 is installed at the bottom of the fixed box 72, and the output end of the driving motor 71 is fixedly connected to a connecting shaft No. 1 73, and the connecting shaft No. 1 73 passes through the fixed box 72 and is rotatably connected to the bottom of the preparation box 32, and the connecting shaft No. 1 73 is located inside the storage cavity No. 1 of the preparation box 32, and a stirring blade No. 1 74 is fixedly connected to the surface of the connecting shaft No. 1 73, and a stirring impeller No. 1 75 is fixedly connected to the surface of the connecting shaft No. 1 73, and the stirring impeller No. 1 75 is located below the stirring blade No. 1 74.

[0041] A No. 2 connecting shaft 79 is rotatably connected inside the fixed box 72, and the No. 2 connecting shaft 79 passes through the fixed box 72 and is rotatably connected to the bottom of the preparation box 32, and the No. 2 connecting shaft 79 is located inside the No. 2 storage cavity of the preparation box 32, a No. 2 stirring blade 710 is fixedly connected to the surface of the No. 2 connecting shaft 79, and a No. 2 stirring impeller 711 is fixedly connected to the surface of the No. 2 connecting shaft 79, and the No. 2 stirring impeller 711 is located below the No. 2 stirring blade 710, a No. 2 pulley 78 is fixedly connected to the surface of the No. 2 connecting shaft 79, a No. 1 pulley 76 is fixedly connected to the surface of the No. 1 connecting shaft 73, a connecting belt 77 is movably connected to the surface of the No. 1 pulley 76, and the connecting belt 77 is movably connected to the No. 2 pulley 78.

[0042] In this embodiment, the driving motor 71 drives the No. 1 connecting shaft 73 to rotate, and at the same time drives the No. 1 stirring blade 74 and the No. 1 stirring impeller 75 to stir the solution required for detection in the No. 1 storage cavity inside the preparation box 32. At the same time, the No. 1 connecting shaft 73 will drive the No. 1 pulley 76 to rotate, thereby driving the connecting belt 77 and the No. 2 pulley 78 to rotate, and finally driving the No. 2 connecting shaft 79 and the No. 2 stirring blade 710 and the No. 2 stirring impeller 711 fixed on its surface to rotate, thereby stirring the solution required for detection in the No. 2 storage cavity inside the preparation box 32. By stirring the solvent and the solute, the fusion of the two is accelerated, and at the same time the uniformity of the solution concentration is improved, thereby improving the accuracy of the detection result.

[0043] Embodiment 3: Figure 1 Figure 3 , Figure 4 , Figure 7 and Figure 8As shown, the vibration mechanism 9 includes a Y-axis moving component 91, the Y-axis moving component 91 is fixedly connected to the inside of the operation box 11, and the upper part of the moving end of the Y-axis moving component 91 is fixedly connected to a No. 4 fixing frame 92, the upper part of the No. 4 fixing frame 92 is fixedly connected to a telescopic rod 94, the upper part of the telescopic rod 94 is fixedly connected to a connecting plate 96, the bottom of the connecting plate 96 is fixedly connected to a vibration motor 97, a spring 95 is provided on the surface of the telescopic rod 94, one end of the spring 95 is fixedly connected to the No. 4 fixing frame 92, and the other end of the spring 95 is fixedly connected to the connecting plate 96, a suction cup fixing component 93 is installed on the upper part of the connecting plate 96, and the suction cup fixing component 93 is externally connected to a suction cup control system;

[0044] There is an auxiliary mechanism 6 inside the operating box 11, and the auxiliary mechanism 6 includes an X-axis moving component 61. The X-axis moving component 61 is fixedly connected to the operating box 11, and the upper part of the moving end of the X-axis moving component 61 is fixedly connected to a No. 3 fixed frame 62, the side of the No. 3 fixed frame 62 is fixedly connected to a clamping platform 63, the side of the clamping platform 63 is fixedly connected to a cylinder 64, and the upper part of the cylinder 64 is fixedly connected to a clamping plate 65.

[0045] In this embodiment, after the liquid is injected into the preparation test tube, the connecting plate 96 is driven to vibrate by the vibration motor 97, so as to mix the sample and the solution in the product preparation test tube inside the sample placement table 2 fixed on the upper part of the suction cup fixing assembly 93, so that the pesticide residue on the surface of the sample is fully mixed with the solution, thereby improving the accuracy of the detection result;

[0046] The solution and the sample in the sample preparation tube are vibrated and mixed by the vibration mechanism 9, and then the Y-axis moving component 91 in the vibration mechanism 9 moves the prepared sample preparation tube to the side of the spectrum detector body 13. The operator takes out the pesticide extraction solution in the sample preparation tube and places it in the test tube, and then places the test tube in the spectrum detector body 13 to complete the detection;

[0047] When testing a large number of samples, the sample placement table 2 is moved to the upper part of the clamping table 63 through the Y-axis moving component 91. At this time, the cylinder 64 is shortened to drive the clamping plate 65 to clamp and fix the sample placement table 2. Then the suction cup fixing component 93 and the sample placement table 2 are released, and the new sample placement table 2 is fixed again. The new product preparation tube is installed, and the prepared sample fixed on the surface of the auxiliary mechanism 6 is tested by the measuring mechanism 1. At the same time, a new test sample can be prepared by the test solution loading mechanism 4, the moving mechanism 5 and the vibration mechanism 9. Sample testing and sample preparation can be carried out simultaneously to improve the efficiency of testing. The position of the sample fixed on the upper part of the clamping table 63 is adjusted by the X-axis moving component 61 to facilitate the operator to take the sample for testing.

[0048] Embodiment 4: A method for measuring pesticide residues in jasmine tea by spectroscopic measurement equipment, comprising the following steps:

[0049] Step 1: respectively put the solvent and solute required for detection into the first storage cavity and the second storage cavity of the preparation box 32, and stir and mix the solutions in the first storage cavity and the second storage cavity of the preparation box 32 by the stirring mechanism 7;

[0050] Step 2: Place the jasmine tea sample inside the sample preparation tube, determine the location of the sample preparation tube through the visual recognition system 8, and automatically control the mobile mechanism 5 to adjust the position of the liquid outlet head 44 through the external intelligent control system, and control the auxiliary mechanism 6 to adjust the position of the sample preparation tube;

[0051] Step 3: The corresponding solution required for the detection step is quantitatively drawn from the preparation box 32 into the sample preparation tube through the detection solution loading mechanism 4;

[0052] Step 4: The solution and sample in the sample preparation tube are vibrated and mixed by the vibration mechanism 9, and the prepared sample preparation tube is moved to the side of the spectrometer body 13 by the Y-axis moving component 91. The operator takes out the pesticide extraction solution in the sample preparation tube and places it in the test tube, and then places the test tube in the spectrometer body 13 to complete the detection.

[0053] The working principle and use method of the device are as follows: the solvent and solute required for detection are respectively placed into the first storage cavity and the second storage cavity of the preparation box 32, and the solutions in the first storage cavity and the second storage cavity of the preparation box 32 are stirred and mixed by the stirring mechanism 7;

[0054] The driving motor 71 drives the No. 1 connecting shaft 73 to rotate, and at the same time drives the No. 1 stirring blade 74 and the No. 1 stirring impeller 75 to stir the solution required for detection in the No. 1 storage cavity inside the preparation box 32. At the same time, the No. 1 connecting shaft 73 drives the No. 1 pulley 76 to rotate, thereby driving the connecting belt 77 and the No. 2 pulley 78 to rotate, and finally drives the No. 2 connecting shaft 79 and the No. 2 stirring blade 710 and the No. 2 stirring impeller 711 fixed on the surface thereof to rotate, thereby stirring the solution required for detection in the No. 2 storage cavity inside the preparation box 32, by stirring the solvent and the solute;

[0055] Place the jasmine tea sample inside the sample preparation test tube, then insert the sample preparation test tube into the sample placement table 2, determine the location of the sample preparation test tube through the visual recognition system 8, and automatically control the moving mechanism 5 to adjust the position of the liquid outlet head 44 through the external intelligent control system, and control the auxiliary mechanism 6 to adjust the position of the sample preparation test tube, so that the liquid outlet head 44 is accurately moved to the top of the sample preparation test tube, and then according to the steps of adding the detection solution, control the quantitative liquid adding pump 41 in sequence to quantitatively inject the detection solution in the preparation box 32 into the sample preparation test tube in sequence, and by moving the liquid outlet head 44 to the accurate position to avoid dripping when injecting the solution, the quantitative liquid adding pump 41 is used to accurately and quantitatively inject the solution required for the test;

[0056] The solution and the sample in the sample preparation tube are vibrated and mixed by the vibration mechanism 9, and then the Y-axis moving component 91 in the vibration mechanism 9 moves the prepared sample preparation tube to the side of the spectrum detector body 13. The operator takes out the pesticide extraction solution in the sample preparation tube and places it in the test tube, and then places the test tube in the spectrum detector body 13 to complete the detection;

[0057] When testing a large number of samples, the sample placement table 2 is moved to the upper part of the clamping table 63 through the Y-axis moving component 91. At this time, the cylinder 64 is shortened to drive the clamping plate 65 to clamp and fix the sample placement table 2. Then the suction cup fixing component 93 and the sample placement table 2 are released, and a new sample placement table 2 is fixed again. The new product preparation test tube is installed, and while the prepared sample fixed on the surface of the auxiliary mechanism 6 is tested by the measuring mechanism 1, a new test sample can also be prepared by the detection solution loading mechanism 4, the moving mechanism 5 and the vibration mechanism 9.

[0058] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A spectral determination device for pesticide residues in jasmine tea, comprising a determination mechanism (1) and a vibration mechanism (9), wherein the determination mechanism (1) is fixedly connected to a detection solution preparation mechanism (3) on the side thereof, and the detection solution preparation mechanism (3) is fixedly connected to a detection solution feeding mechanism (4) on the side thereof, the vibration mechanism (9) is fixedly connected to the inside of the determination mechanism (1), and a sample placement table (2) is placed on the top of the vibration mechanism (9), and a sample preparation test tube is placed inside the sample placement table (2), and the detection solution feeding mechanism (4) is used to quantitatively transport the detection solution inside the detection solution preparation mechanism (3) to the inside of the sample preparation test tube, characterized in that: The detection solution preparation mechanism (3) comprises a preparation box (32), wherein a partition is arranged inside the preparation box (32), wherein the partition divides the preparation box (32) into a first storage cavity and a second storage cavity, wherein a stirring mechanism (7) is fixedly connected to the bottom of the preparation box (32), wherein the stirring mechanism (7) is used to simultaneously stir the solutions inside the first storage cavity and the second storage cavity, wherein a moving mechanism (5) is fixedly connected to the top of the measuring mechanism (1), wherein the moving mechanism (5) is used to adjust the position of a liquid outlet head (44) in the detection solution liquid feeding mechanism (4), wherein the vibration mechanism (9) is used to vibrate a sample preparation test tube placed inside the sample placement table (2), and wherein the vibration mechanism (9) is used to adjust the sample preparation test tube placed inside the sample placement table (2) so as to cooperate with the moving mechanism (5) to allow the liquid outlet head (44) to inject solution into the sample preparation test tube.

2. The jasmine tea pesticide residue spectrum determination device according to claim 1, characterized in that: The measuring mechanism (1) comprises an operating box (11), the upper part of which is fixedly connected to an operating table (12), and the upper part of which is fixedly connected to a spectrum detector body (13).

3. A jasmine tea pesticide residue spectrometry device according to claim 2, characterized in that: The bottom of the preparation box (32) is fixedly connected to a first fixing frame (31), the first fixing frame (31) is fixedly connected to the side of the operation box (11), and the upper part of the preparation box (32) is fixedly connected to a feed pipe (33).

4. The jasmine tea pesticide residue spectrum determination device according to claim 3, characterized in that: The stirring mechanism (7) comprises a fixed box (72), the fixed box (72) is fixedly connected to the bottom of the preparation box (32), and a driving motor (71) is installed at the bottom of the fixed box (72), the output end of the driving motor (71) is fixedly connected to a first connecting shaft (73), the first connecting shaft (73) passes through the fixed box (72) and is rotatably connected to the bottom of the preparation box (32), and the first connecting shaft (73) is located inside a first storage cavity of the preparation box (32), the surface of the first connecting shaft (73) is fixedly connected to a first stirring blade (74), and the surface of the first connecting shaft (73) is fixedly connected to a first stirring impeller (75), and the first stirring impeller (75) is located below the first stirring blade (74).

5. The jasmine tea pesticide residue spectrum determination device according to claim 4, characterized in that: A No. 2 connecting shaft (79) is rotatably connected inside the fixed box (72), and the No. 2 connecting shaft (79) passes through the fixed box (72) and is rotatably connected to the bottom of the preparation box (32), and the No. 2 connecting shaft (79) is located inside the No. 2 storage cavity of the preparation box (32), and a No. 2 stirring blade (710) is fixedly connected to the surface of the No. 2 connecting shaft (79), and a No. 2 stirring impeller (711) is fixedly connected to the surface of the No. 2 connecting shaft (79), and the No. 2 stirring impeller (711) is located below the No. 2 stirring blade (710), and a No. 2 pulley (78) is fixedly connected to the surface of the No. 2 connecting shaft (79), and a No. 1 pulley (76) is fixedly connected to the surface of the No. 1 connecting shaft (73), and a connecting belt (77) is movably connected to the surface of the No. 1 pulley (76), and the connecting belt (77) is movably connected to the No. 2 pulley (78).

6. The jasmine tea pesticide residue spectrum determination device according to claim 5, characterized in that: Two detection solution feeding mechanisms (4) are installed on the side of the operation box (11), one of the detection solution feeding mechanisms (4) is fixedly connected to the first storage chamber of the preparation box (32), and the other detection solution feeding mechanism (4) is fixedly connected to the second storage chamber of the preparation box (32). The detection solution feeding mechanism (4) comprises a quantitative liquid adding pump (41), and the ends of the quantitative liquid adding pump (41) are respectively installed with a first connecting pipe (42) and a second connecting pipe (43), the first connecting pipe (42) is fixedly connected to the preparation box (32), and the end of the second connecting pipe (43) is fixedly connected to a liquid outlet head (44).

7. The jasmine tea pesticide residue spectrum determination device according to claim 6, characterized in that: The moving mechanism (5) comprises a second fixing frame (51), the second fixing frame (51) is fixedly connected to the operating table (12), and a servo motor (52) is installed at one end of the second fixing frame (51), a screw rod (53) is fixedly connected to the output end of the servo motor (52), a screw block (54) is threadedly connected to the surface of the screw rod (53), a fixing plate (55) is fixedly connected to the bottom of the screw block (54), the bottom of the fixing plate (55) is fixedly connected to the liquid outlet head (44), and a visual recognition system (8) is installed at the bottom of the fixing plate (55), and the visual recognition system (8) is located at the liquid outlet head (44). The side surface of the second fixing frame (51) is provided with a visual recognition system (8) externally connected to an intelligent control system, the intelligent control system is used to control the detection solution loading mechanism (4), the moving mechanism (5), the vibration mechanism (9) and the auxiliary mechanism (6), the visual recognition system (8) is used to identify the position of the liquid head (44) and the sample preparation test tube, the bottom of the second fixing frame (51) is fixedly connected to a slide rail (56), the surface of the slide rail (56) is slidably connected to a slider (57), the slider (57) is fixedly connected to the fixing plate (55), and the visual recognition system (8) is used to identify the position of the sample preparation test tube on the upper part of the sample placement table (2).

8. The jasmine tea pesticide residue spectrum determination device according to claim 7, characterized in that: The vibration mechanism (9) comprises a Y-axis moving assembly (91), the Y-axis moving assembly (91) is fixedly connected to the inside of the operation box (11), and the upper part of the moving end of the Y-axis moving assembly (91) is fixedly connected to a No. 4 fixing frame (92), the upper part of the No. 4 fixing frame (92) is fixedly connected to a telescopic rod (94), the upper part of the telescopic rod (94) is fixedly connected to a connecting plate (96), the bottom of the connecting plate (96) is fixedly connected to a vibration motor (97), a spring (95) is arranged on the surface of the telescopic rod (94), one end of the spring (95) is fixedly connected to the No. 4 fixing frame (92), and the other end of the spring (95) is fixedly connected to the connecting plate (96), a suction cup fixing assembly (93) is installed on the upper part of the connecting plate (96), and the suction cup fixing assembly (93) is externally connected to a suction cup control system.

9. The jasmine tea pesticide residue spectrum determination device according to claim 8, characterized in that: The operating box (11) has an auxiliary mechanism (6) inside, and the auxiliary mechanism (6) includes an X-axis moving assembly (61), the X-axis moving assembly (61) is fixedly connected to the operating box (11), and the upper part of the moving end of the X-axis moving assembly (61) is fixedly connected to a third fixed frame (62), the side of the third fixed frame (62) is fixedly connected to a clamping platform (63), the side of the clamping platform (63) is fixedly connected to a cylinder (64), and the upper part of the cylinder (64) is fixedly connected to a clamping plate (65).

10. A method for measuring pesticide residues in jasmine tea using a spectroscopic measuring device, characterized in that: The jasmine tea pesticide residue spectrum determination device according to any one of claims 1 to 9 is used, comprising the following steps: S1, respectively placing the solvent and solute required for detection into the first storage cavity and the second storage cavity of the preparation box (32), and stirring and mixing the solutions in the first storage cavity and the second storage cavity of the preparation box (32) by means of a stirring mechanism (7); S2, placing the jasmine tea sample inside the sample preparation test tube, determining the location of the sample preparation test tube through the visual recognition system (8), and automatically controlling the moving mechanism (5) to adjust the position of the liquid outlet head (44) through the external intelligent control system, and controlling the auxiliary mechanism (6) to adjust the position of the sample preparation test tube; S3, quantitatively extracting the corresponding solution required for the detection step from the preparation box (32) into the sample preparation tube through the detection solution loading mechanism (4); S4. The solution and the sample in the sample preparation tube are vibrated and mixed by the vibration mechanism (9), and the prepared sample preparation tube is moved to the side of the spectrum detector body (13) by the Y-axis moving component (91). The operator takes out the pesticide extraction solution in the sample preparation tube and places it in the detection tube, and then places the detection tube in the spectrum detector body (13) to complete the detection.

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