Vitex trifolia leaf essential oil extraction and component analysis and identification method

Abstract

The invention relates to the technical field of essential oil extraction and analysis, in particular to a vitex trifolia leaf essential oil extraction and component analysis and identification method which comprises the following steps: S1, pretreatment of vitex trifolia leaves: flushing the vitex trifolia leaves with clear water for 10-15 minutes, drying moisture on the surfaces of the vitex trifolia leaves, preparing an extraction device, setting the extraction device to be in an initial state, and extracting the vitex trifolia leaves; putting vitex trifolia leaves into an extraction device; s2, squeezing the vitex trifolia leaves: squeezing the vitex trifolia leaves of which the surface moisture is dried by an extraction device for 5-10 minutes to obtain squeezed vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s3, grinding the vitex trifolia leaves: grinding the squeezed vitex trifolia leaves for 10-15 minutes through an extraction device to obtain ground vitex trifolia leaves and a vitex trifolia leaf oil-water mixture; s4, filtering vitex trifolia leaf essential oil: filtering vitex trifolia leaves and the vitex trifolia leaf oil-water mixture through an extraction device to obtain a vitex trifolia leaf oil-water mixture; s4, extracting vitex trifolia leaf essential oil; the device has comprehensive functions and can effectively improve the extraction efficiency.

Description

Technical Field

[0001] The invention relates to the technical field of essential oil extraction and analysis, and in particular to a method for extracting and analyzing components of vitex rotundifolia essential oil. Background Art

[0002] Vitex essential oil is widely used in daily chemical products such as perfume, skin care products, shampoo, etc. due to its unique aroma and plant ingredients, adding natural plant aroma and health benefits to the products. Vitex essential oil has a variety of health benefits, such as soothing the body and mind, calming anxiety and boosting mood. In addition, the essential oil can also be used for massage, bathing, etc. to promote blood circulation and relieve fatigue. Vitex essential oil can also be used for disinfection, deodorization, and improvement of living environment. For example, spraying it on the bed, clothes or furniture can purify the air and deodorize.

[0003] In the prior art, the extraction method of vitex rotundifolia essential oil generally adopts a pressing method, in which the cleaned vitex rotundifolia leaves are squeezed and ground by an extraction device to squeeze out the moisture and essential oil containing aromatic components in the vitex rotundifolia leaves, and then the oil and water are separated by centrifugation, filtration and other methods, and then the essential oil is extracted; this method can effectively extract vitex rotundifolia essential oil, but during the squeezing process, when there are many vitex rotundifolia leaves, the squeezing equipment in the prior art is prone to jamming, which affects the squeezing efficiency.

[0004] In summary, how to solve the problem that when there are many Vitex rotundifolia leaves in the squeezing process, the squeezing equipment in the prior art is prone to jamming, which affects the squeezing efficiency has become a difficult problem that needs to be solved in the current field. Therefore, it is necessary to propose a Vitex rotundifolia leaf essential oil extraction device that is not prone to jamming. Summary of the invention

[0005] In order to solve the above problems, the present invention provides a method for extracting and analyzing the components of Vitex rotundifolia essential oil. By designing a grinding component capable of adjusting the extrusion gap, Vitex rotundifolia leaves can be squeezed to extract Vitex rotundifolia essential oil, while greatly reducing the probability of the grinding component getting stuck, thereby improving the squeezing efficiency and the extraction efficiency.

[0006] In order to achieve the above object, the technical scheme of the present invention is as follows: a method for extracting and analyzing the components of Vitex rotundifolia essential oil, comprising the following steps:

[0007] S1, pretreatment of Vitex rotundifolia leaves: rinse the Vitex rotundifolia leaves with clean water for 10-15 minutes, dry the surface moisture of the Vitex rotundifolia leaves, and put the Vitex rotundifolia leaves into an extraction device.

[0008] S2, pressing the vitex rotundifolia leaves: pressing the vitex rotundifolia leaves with the surface moisture dried for 5-10 minutes by an extraction device to obtain pressed vitex rotundifolia leaves and a pressed vitex rotundifolia leaf oil-water mixture.

[0009] S3, grinding of vitex rotundifolia leaves: grinding the squeezed vitex rotundifolia leaves for 10-15 minutes by an extraction device to obtain ground vitex rotundifolia leaves and a ground vitex rotundifolia leaf oil-water mixture.

[0010] S4, filtering the essential oil of Vitex rotundifolia leaves: filtering the ground Vitex rotundifolia leaves and the Vitex rotundifolia leaves oil-water mixture through an extraction device to obtain a filtered Vitex rotundifolia leaves oil-water mixture.

[0011] S4, extraction of essential oil from vitex rotundifolia leaves: centrifuging the vitex rotundifolia leaf oil-water mixture for 15-20 minutes using an extraction device, and extracting the essential oil from vitex rotundifolia leaves after the centrifugation is completed.

[0012] Furthermore, the extraction device includes a base with a sliding groove transversely opened in the base; an extraction tank for extracting vitex rotundifolia essential oil is fixedly connected to the top of the base; a controller is fixedly connected to the outer wall of the extraction tank, and a material extraction component for discharging vitex rotundifolia essential oil is provided on the outer wall of the extraction tank; and a top cover is hinged on the top of the extraction tank.

[0013] A driving component for providing driving force is arranged outside the extraction tank, a grinding component for squeezing vitex leaves and a partition component for intercepting vitex leaves are arranged inside the extraction tank, and a stirring component for separating the vitex leaf oil-water mixture is arranged at the bottom of the extraction tank.

[0014] The technical principles of the above scheme are as follows:

[0015] First, rinse the vitex rotundifolia leaves with clean water for 10-15 minutes, then dry the moisture on the surface of the vitex rotundifolia leaves, empty the debris in the extraction tank, set the extraction device to the initial state, open the top cover, and place the vitex rotundifolia leaves into the extraction device; at this time, start the driving component through the controller to squeeze the vitex rotundifolia leaves with dried surface moisture for 5-10 minutes to obtain the squeezed vitex rotundifolia leaves and the vitex rotundifolia leaves oil-water mixture; after squeezing, start the grinding component through the controller to grind the squeezed vitex rotundifolia leaves for 10-15 minutes to obtain the grinded vitex rotundifolia leaves and the vitex rotundifolia leaves oil-water mixture; at this time, the separation component will separate and filter the vitex rotundifolia leaves from the vitex rotundifolia leaves oil-water mixture, and the vitex rotundifolia leaves oil-water mixture will flow to the stirring component, and the controller will start the stirring component to stir the oil-water mixture. After the oil-water mixture is fully stirred, stratification will occur, and the vitex rotundifolia essential oil will float on the upper layer, while the water will sink to the lower layer.

[0016] After the stratification is completed, since the water is located in the lower layer, the water layer can be discharged preferentially by opening the material taking component through the controller; after the water layer is discharged, the essential oil of Vitex rotundifolia can be quantitatively extracted.

[0017] The above scheme has the following beneficial effects:

[0018] 1. Compared with the prior art which uses only the traditional pressing plate for pressing, this solution adds the design of a grinding component, so that the Vitex rotundifolia leaves can be ground more fully after pressing, thereby increasing the extraction rate of the effective ingredients in the Vitex rotundifolia leaves and increasing the extraction amount.

[0019] 2. Compared with the grinding device in the prior art, the grinding assembly in this scheme can self-adjust its own grinding gap according to the amount of Vitex rotundifolia leaves, effectively avoiding the device jamming caused by excessive Vitex rotundifolia leaves during the grinding process, thereby improving the pressing efficiency and extraction efficiency of the entire extraction process.

[0020] 3. In this scheme, washing the Vitex rotundifolia leaves with clean water can remove surface impurities and dust to ensure the purity of subsequent extraction. Drying the surface moisture is to prevent excessive moisture from affecting the extraction efficiency of essential oils during the pressing and grinding process. At the same time, it also reduces the stratification time of subsequent oil-water separation and the time to discharge the water layer, thereby improving the extraction efficiency.

[0021] Furthermore, the driving assembly includes a double-headed telescopic rod and a plurality of vertical rods. The vertical rods are symmetrically arranged on both sides of the extraction tank, and the double-headed telescopic rod is fixedly connected to the top of the extraction tank; the top of the vertical rod is integrally formed with a push rod, and the end of the push rod away from the vertical rod is fixedly connected to the adjacent output shaft of the double-headed telescopic rod; the middle part of the vertical rod is integrally formed with a push rod, and the end of the push rod away from the vertical rod passes through the side wall of the extraction tank and is fixedly connected to the extrusion plate; the bottom of the vertical rod is integrally formed with a trapezoidal plate, and the trapezoidal plate is slidably matched with the sliding groove; the controller is used to control the opening and closing of the double-headed telescopic rod.

[0022] Beneficial effects: before adding the vitex leaves, the double-headed telescopic rod is kept in a retracted state through the controller. After adding the vitex leaves, the vitex leaves are received by the partition component so that the vitex leaves are located between the extrusion plates. After the vitex leaves are added, the operator starts the double-headed telescopic rod through the controller, and the double-headed telescopic rod retracts back and forth. Since the double-headed telescopic rod is fixedly connected to the top of the extraction tank, and its output end will drive the top rods on both sides to slide left and right. Since the top rod is fixedly connected to the vertical rod, the trapezoidal plates at the bottom of the vertical rod are slidably matched with the sliding groove, so the vertical rod will also slide left and right. The vertical rods on both sides will drive the push rods on both sides to push the extrusion plate to repeatedly crush the vitex leaves, and at the same time, some vitex essential oil in the vitex leaves will be crushed out.

[0023] Further, the grinding assembly includes a main grinding rod, both ends of the main grinding rod are rotatably matched with support plates, both ends of the main grinding rod penetrate the support plate and are fixedly connected with main gears, and one end of the main gear side wall is fixedly connected with a driving member for providing power, and the controller is used to control the opening and closing of the driving member; a secondary gear is meshed below the main gear, and a moving gear is meshed on one side of the secondary gear. A first connecting rod is hinged on the side of the secondary gear away from the support plate, and an end of the first connecting rod away from the secondary gear is hinged to the side of the moving gear away from the support plate; a driven gear is meshed above the moving gear, and a second connecting rod is hinged on the side of the moving gear away from the support plate, and an end of the second connecting rod away from the moving gear is hinged to the side of the driven gear away from the support plate; a side of the driven gear close to the support plate is fixedly connected to a secondary grinding rod; a transverse moving groove is opened on the support plate, and a moving block is slidably matched in the moving groove, and both ends of the secondary grinding rod penetrate the moving block and rotate with the moving block; a number of springs are fixedly connected between the side of the moving block away from the main gear and the inner wall of the moving groove; the support plates are fixedly connected to the middle of the extraction tank.

[0024] Beneficial effect: when the crushing of the vitex rotundifolia leaves is completed, the controller will open the partition assembly, and the vitex rotundifolia leaves will enter between the main grinding rod and the auxiliary grinding rod. At this time, the driving member is started by the controller, and the driving member drives the main gear to rotate. Since the main gear, the auxiliary gear, the moving gear and the driven gear are meshed in sequence, the main gear will drive the auxiliary gear, the moving gear and the driven gear to rotate in sequence. At the same time, the main gear will drive the main grinding rod to rotate, and the driven gear will drive the auxiliary grinding rod to rotate. Since the main gear and the driven gear have the same rotation speed and opposite rotation direction, the main grinding rod rotates clockwise, and the auxiliary grinding rod rotates counterclockwise, so that when the vitex rotundifolia leaves are located between the main grinding rod and the auxiliary grinding rod, they will be drawn in and ground, and most of the remaining vitex rotundifolia essential oil in the vitex rotundifolia leaves will be crushed out.

[0025] When there are too many vine leaves, the vine leaves will produce a greater extrusion on the main grinding rod and the auxiliary grinding rod. When the extrusion force is greater than the elastic force of the spring, the moving block will move in the moving groove away from the main gear, and the spring will be compressed; at this time, since the moving gear can move up and down, when the moving block drives the driven gear to slide to the right, the second connecting rod can drive the moving gear to move up, maintain the meshing and transmission of the driven gear and the moving gear, and at the same time, the first connecting rod also maintains the meshing and transmission of the auxiliary gear and the moving gear, so that the main grinding rod and the auxiliary grinding rod can adapt to different amounts of vine leaves. The more vine leaves there are, the more the moving block moves, and the larger the gap between the main grinding rod and the auxiliary grinding rod will be, so that more vine leaves can pass through, avoiding the main grinding rod and the auxiliary grinding rod being stuck by the vine leaves, causing grinding to be unable to proceed, thereby improving the grinding efficiency; at the same time, after the vine leaves pass, the spring will push the moving block to reset, so that the main grinding rod and the auxiliary grinding rod are close to each other, maintaining the original grinding effect, and thus improving the extraction efficiency.

[0026] Furthermore, the partition assembly includes an inclined partition plate, which is fixedly connected to the inner wall of the extraction tank, and is located between the extrusion plate and the support plate. A grinding opening is opened in the middle of the partition plate, and a telescopic plate is fixedly connected to the grinding opening. The controller is used to control the opening and closing of the telescopic plate; a filter plate is fixedly connected to the inner wall of the extraction tank, and the filter plate is located below the main grinding rod and the auxiliary grinding rod.

[0027] Beneficial effects: Since the partition plate is located between the extrusion plate and the support plate, when the vitex leaves are put onto the partition plate, they will be intercepted by the partition plate, so that the vitex leaves are first squeezed and crushed by the squeezing plate. After the squeezing and crushing of the vitex leaves are completed, the controller will control the telescopic plate to retract and open the grinding port; since the partition plate is inclined and due to the effect of gravity, the vitex leaves will flow from the grinding port to between the main grinding rod and the auxiliary grinding rod, which is convenient for subsequent grinding; since the vitex leaves are first squeezed and crushed by the squeezing plate, the probability of the main grinding rod and the auxiliary grinding rod being stuck due to too many vitex leaves and the large volume of vitex leaves in the subsequent grinding process is greatly reduced; when the grinding is completed, the ground vitex leaves and the vitex leaf oil-water mixture will be filtered through the filter plate, and the filter plate will intercept the ground vitex leaves, and only allow the vitex leaf oil-water mixture to flow into the stirring component, which is convenient for subsequent stirring and stratification and vitex leaf essential oil extraction.

[0028] Furthermore, the stirring assembly includes a threaded sleeve, which is fixedly connected to the bottom of the extraction tank, and the inner thread of the threaded sleeve is matched with a threaded rod; a plurality of stirring rods are fixedly connected to the upper end of the threaded rod, the bottom of the threaded rod is conical, and the inclined parts of the trapezoidal plate are all slidably matched with the bottom of the threaded rod.

[0029] Beneficial effect: after the vitex leaf oil-water mixture flows into the bottom of the extraction tank, when the double-headed telescopic rod is contracted, it will drive the trapezoidal plates on both sides to slide on the base. Since the inclined parts of the trapezoidal plates are slidably matched with the bottom of the threaded rod, the trapezoidal plates will generate an upward thrust on the threaded rod. Since the threaded sleeve is threadedly matched with the threaded rod, and the threaded sleeve is fixed to the bottom of the extraction tank, the threaded rod will rotate upward, causing the stirring rod to rotate upward as well. When the double-headed telescopic rod is extended, the trapezoidal plates will move to both sides, and the threaded rod loses the support of the trapezoidal plates. Due to its own gravity, the threaded rod will move downward, and with the shearing effect of the threaded sleeve, the threaded rod will rotate downward, causing the stirring rod to rotate upward as well. Thus, the stirring rod rotates back and forth continuously and moves up and down at the same time, which will continuously stir the vitex leaf oil-water mixture. Due to the effect of rotary stirring, the vitex leaf oil-water mixture will rotate accordingly. Due to the effect of centrifugal force, the vitex leaf oil-water mixture will quickly stratify. With the effect of up and down stirring, the vitex leaf oil-water mixture is shaken more fully, further improving its stratification speed.

[0030] Furthermore, the material taking component includes a material taking pipe, which is connected to the lower side wall of the extraction tank. A material taking valve is fixedly connected in the material taking pipe, and the controller is used to control the opening and closing of the material taking valve.

[0031] Beneficial effect: When the mixture of vitex rotundifolia oil and water is stirred and layered, since the density of water is greater than that of vitex rotundifolia essential oil, the vitex rotundifolia essential oil will float on the upper layer, while the water will sink to the lower layer; at this time, the water layer can be discharged preferentially by opening the material dispensing valve through the controller; after the water layer is discharged, the vitex rotundifolia essential oil can be quantitatively extracted by controlling the material dispensing valve through the controller.

[0032] Furthermore, a display is fixedly connected to the side wall of the extraction tank, and the controller is used to control the opening and closing of the display.

[0033] Beneficial effects: The display can display the entire process of extracting the essential oil from Vitex rotundifolia leaves, making it easy for operators to observe and regulate the entire process.

[0034] Furthermore, in S1, before the Vitex rotundifolia leaves are placed into the extraction device, the double-headed telescopic rod is in an extended state, and there is no debris in the extraction tank.

[0035] Beneficial effects: Before adding the Vitex rotundifolia leaves, the double-headed telescopic rod is adjusted to an extended state through the controller, so that the push rod and the squeezing plate will not occupy the space in the extraction tank, and the Vitex rotundifolia leaves will not occupy the movement space of the push rod and the squeezing plate, thereby improving the operation stability of the device and the squeezing effect of the Vitex rotundifolia leaves. At the same time, after each extraction is completed, the Vitex rotundifolia leaves and impurities remaining in the extraction tank are emptied to reduce the impact on each extraction.

[0036] Further, a method for analyzing and identifying the components of Vitex rotundifolia essential oil comprises the following steps:

[0037] S1, Vitex rotundifolia essential oil extraction: open the extraction valve and obtain 3-5 ml of Vitex rotundifolia essential oil.

[0038] S2, spectrum analysis of Vitex rotundifolia essential oil: prepare a spectrum analyzer, perform spectrum analysis on Vitex rotundifolia essential oil, and obtain target spectrum analysis results.

[0039] S3, comparative analysis of Vitex rotundifolia essential oil: Based on the neural network algorithm, a comparative analysis model is established, and the spectral analysis results of essential oils with different components are used to train the comparative analysis model. The comparative analysis model is used to compare the target spectral analysis results with the spectral analysis results of essential oils with different components to obtain the component analysis results.

[0040] Beneficial effects: The required volume of Vitex rotundifolia essential oil can be stably extracted through the material extraction valve; the spectrum analyzer is then used to obtain the target spectrum analysis result, and the operator then uses the comparative analysis model to compare and analyze the target spectrum analysis result with the spectrum analysis results of essential oils composed of different components. The comparative analysis model marks and classifies each type of component, and when a spectral feature of the target spectrum matches the spectral feature of the spectrum of one of the components, the comparative analysis model will determine that it contains the component; thereby, the operator can quickly analyze the components of the extracted Vitex rotundifolia essential oil.

[0041] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 The present invention is a flowchart of the steps of the method for extracting essential oil from Vitex rotundifolia leaves in an embodiment of the present invention.

[0043] Figure 2 It is an axonometric view of the extraction tank in the embodiment of the present invention.

[0044] Figure 3 It is an axonometric view of the grinding assembly in an embodiment of the present invention.

[0045] Figure 4 It is a cross-sectional view of the extraction device in an embodiment of the present invention.

[0046] Figure 5 The present invention is a flowchart of the steps of the method for analyzing and identifying the components of Vitex rotundifolia essential oil in an embodiment of the present invention.

[0047] The figure marks in the drawings of the specification include: 1. base; 2. extraction tank; 201. top cover; 202. display; 203. controller; 204. material extraction valve; 3. vertical rod; 301. top rod; 302. push rod; 303. trapezoidal plate; 4. double-headed telescopic rod; 5. extrusion plate; 6. partition plate; 7. telescopic plate; 8. main grinding rod; 801. main gear; 802. sub-gear; 803. moving gear; 804. driven gear; 805. first connecting rod; 806. second connecting rod; 807. support plate; 808. moving block; 809. spring; 810. sub-grinding rod; 9. filter plate; 10. threaded sleeve; 11. threaded rod; 12. stirring rod. DETAILED DESCRIPTION

[0048] The following is further described in detail through specific implementation methods:

[0049] Embodiment 1:

[0050] As attached Figure 1-Figure 4 As shown: A method for extracting and analyzing the components of Vitex rotundifolia essential oil, such as Figure 1 As shown, the following steps are included:

[0051] S1, pretreatment of Vitex rotundifolia leaves: rinse the Vitex rotundifolia leaves with clean water for 10 minutes, dry the moisture on the surface of the Vitex rotundifolia leaves, and put the Vitex rotundifolia leaves into an extraction device.

[0052] S2, pressing the vitex rotundifolia leaves: pressing the vitex rotundifolia leaves with the surface moisture dried for 5 minutes by an extraction device to obtain pressed vitex rotundifolia leaves and a pressed vitex rotundifolia leaf oil-water mixture.

[0053] S3, grinding of vitex rotundifolia leaves: grinding the squeezed vitex rotundifolia leaves for 10 minutes by an extraction device to obtain ground vitex rotundifolia leaves and a ground vitex rotundifolia leaf oil-water mixture.

[0054] S4, filtering the essential oil of Vitex rotundifolia leaves: filtering the Vitex rotundifolia leaves and the Vitex rotundifolia leaves oil-water mixture through an extraction device to obtain a filtered Vitex rotundifolia leaves oil-water mixture.

[0055] S4, extraction of essential oil from vitex rotundifolia leaves: centrifuging the vitex rotundifolia leaf oil-water mixture for 15 minutes using an extraction device. After the centrifugation is completed, the essential oil from vitex rotundifolia leaves is extracted.

[0056] like Figure 4 As shown, the extraction device includes a base 1, in which a sliding groove is horizontally opened; an extraction tank 2 for extracting vitex rotundifolia essential oil is bolted fixedly connected to the top of the base 1; a controller 203 is bolted fixedly connected to the outer wall of the extraction tank 2, and a material extraction component for discharging vitex rotundifolia essential oil is provided on the outer wall of the extraction tank 2; a top cover 201 is hingedly connected to the top of the extraction tank 2.

[0057] The extraction tank 2 is provided with a driving component for providing driving force outside, a grinding component for squeezing the vitex leaves and a partition component for intercepting the vitex leaves inside, and a stirring component for separating the vitex leaves oil-water mixture is provided at the bottom of the extraction tank 2.

[0058] like Figure 4 As shown, the driving assembly includes a double-headed telescopic rod 4 and a plurality of vertical rods 3, the vertical rods 3 are symmetrically arranged on both sides of the extraction tank 2, and the double-headed telescopic rod 4 is bolted and fixedly connected to the top of the extraction tank 2; the top of the vertical rod 3 is integrally formed with a top rod 301, and the end of the top rod 301 away from the vertical rod 3 is bolted and fixedly connected to the adjacent output shaft of the double-headed telescopic rod 4; the middle part of the vertical rod 3 is integrally formed with a push rod 302, and the end of the push rod 302 away from the vertical rod 3 passes through the side wall of the extraction tank 2 and is bolted and fixedly connected with the extrusion plate 5; the bottom of the vertical rod 3 is integrally formed with a trapezoidal plate 303, and the trapezoidal plate 303 is slidably matched with the sliding groove; the controller 203 is used to control the opening and closing of the double-headed telescopic rod 4.

[0059] like Figure 3As shown, the grinding assembly includes a main grinding rod 8, both ends of the main grinding rod 8 are rotatably matched with a support plate 807, both ends of the main grinding rod 8 pass through the support plate 807 and are fixedly connected with a main gear 801 by bolts, one end of the main gear 801 is fixedly connected with a driving member for providing power by bolts on the side wall, and the controller 203 is used to control the opening and closing of the driving member. In this embodiment, the driving member is a motor; a sub-gear 802 is meshed under the main gear 801, and a moving gear 803 is meshed on one side of the sub-gear 802, and a first connecting rod 805 is hinged on the side of the sub-gear 802 away from the support plate 807, and the end of the first connecting rod 805 away from the sub-gear 802 is hinged to the side of the moving gear 803 away from the support plate 807; the moving gear 8 03 are meshed with driven gears 804 on the top, and the side of the moving gear 803 away from the support plate 807 is hinged with a second connecting rod 806, and the end of the second connecting rod 806 away from the moving gear 803 is hinged to the side of the driven gear 804 away from the moving block; the side of the driven gear 804 close to the support plate 807 is bolted and fixed with a secondary grinding rod; a transverse moving groove is opened on the support plate 807, and a moving block 808 is slidably fitted in the moving groove, and both ends of the secondary grinding rod 810 pass through the moving block 808 and rotate with the moving block 808; a number of springs 809 are bolted and fixed between the side of the moving block 808 away from the main gear 801 and the inner wall of the moving groove; the support plate 807 is bolted and fixed to the middle of the extraction tank 2.

[0060] like Figure 4 As shown, the partition assembly includes an inclined partition plate 6, which is fixedly connected to the inner wall of the extraction tank 2 by bolts, and the partition plate 6 is located between the extrusion plate 5 and the support plate 807. A grinding opening is opened in the middle of the partition plate 6, and a telescopic plate 7 is fixedly connected to the grinding opening by bolts, and the controller is used to control the opening and closing of the telescopic plate 7; the grinding opening is located above the main grinding rod 8 and the auxiliary grinding rod 810; the inner wall of the extraction tank 2 is fixedly connected to the filter plate 9 by bolts, and the filter plate 9 is located below the main grinding rod 8 and the auxiliary grinding rod 810.

[0061] like Figure 4 As shown, the stirring assembly includes a threaded sleeve 10, which is welded and connected to the bottom of the extraction tank 2. The inner thread of the threaded sleeve 10 is matched with a threaded rod 11; a plurality of stirring rods 12 are fixedly connected with bolts at the upper end of the threaded rod 11, the bottom of the threaded rod 11 is conical, and the inclined parts of the trapezoidal plate 303 are all slidably matched with the bottom of the threaded rod 11.

[0062] like Figure 2 and Figure 4 As shown, the material taking component includes a material taking pipe, which is connected to the lower side wall of the extraction tank 2. A material taking valve 204 is fixedly connected in the material taking pipe, and the controller 203 is used to control the opening and closing of the material taking valve 204.

[0063] In S1, before the Vitex rotundifolia leaves are placed into the extraction device, the double-headed telescopic rod 4 is in an extended state, and there is no debris in the extraction tank 2.

[0064] The specific implementation process is as follows:

[0065] First, rinse the Vitex rotundifolia leaves with clean water for 10 minutes, and then dry the moisture on the surface of the Vitex rotundifolia leaves; before adding the Vitex rotundifolia leaves, empty the debris in the extraction tank 2, and keep the double-headed telescopic rod 4 in a retracted state through the controller 203.

[0066] by Figure 4 For example, after adding the vitex leaves, since the partition plate 6 is located between the extrusion plate 5 and the support plate 807, when the vitex leaves are placed on the partition plate 6, the controller 203 keeps the telescopic plate 7 extended, and the vitex leaves will be intercepted by the partition plate 6 and the telescopic plate 7, so that the vitex leaves are located between the extrusion plates 5 and are first squeezed and crushed by the extrusion plates 5.

[0067] After the addition of the vitex rotundifolia leaves is completed, at this time, the operator starts the double-headed telescopic rod 4 through the controller 203, and the double-headed telescopic rod 4 contracts back and forth. Since the double-headed telescopic rod 4 is fixedly connected to the top of the extraction tank 2 with bolts, and its output end will drive the top rods 301 on both sides to slide left and right; since the top rod 301 is fixedly connected to the vertical rod 3 with bolts, the trapezoidal plates 303 at the bottom of the vertical rod 3 are slidably matched with the sliding groove, so the vertical rod 3 will also slide left and right; the vertical rods 3 on both sides will drive the push rods 302 on both sides to push the extrusion plate 5 to repeatedly crush the vitex rotundifolia leaves, and at the same time, some of the vitex rotundifolia essential oil in the vitex rotundifolia leaves will be crushed out.

[0068] When the vitex rotundifolia leaves are crushed, the controller 203 controls the telescopic plate 7 to retract and open the grinding opening; due to the inclined setting of the partition plate 6 and the effect of gravity, the vitex rotundifolia leaves will flow from the grinding opening to between the main grinding rod 8 and the auxiliary grinding rod 810.

[0069] by Figure 3 For example, at this time, the motor is started by the controller 203, and the motor drives the main gear 801 to rotate. Since the main gear 801, the sub-gear 802, the moving gear 803 and the driven gear 804 are meshed in sequence, the main gear 801 will drive the sub-gear 802, the moving gear 803 and the driven gear 804 to rotate in sequence; at the same time, the main gear 801 will drive the main grinding rod 8 to rotate, and the driven gear 804 will drive the sub-grinding rod 810 to rotate. Since the main gear 801 and the driven gear 804 have the same rotation speed and opposite rotation directions, the main grinding rod 8 rotates clockwise, and the sub-grinding rod 810 rotates counterclockwise, so that when the vitex rotundifolia is located between the main grinding rod 8 and the sub-grinding rod 810, it will be drawn in and ground, and most of the remaining vitex rotundifolia essential oil in the vitex rotundifolia will be crushed out.

[0070] When there are too many vine leaves, the vine leaves will exert a greater pressure on the main grinding rod 8 and the auxiliary grinding rod 810. When the pressure is greater than the elastic force of the spring 809, the moving block 808 will move in the moving groove away from the main gear 801, and the spring 809 will be compressed. At this time, since the moving gear 803 is not fixed to the support plate 807, and the moving gear 803 is hinged to the auxiliary gear 802 through the first connecting rod 805 and is hinged to the driven gear 804 through the second connecting rod 806, when the moving block 808 drives the driven gear 804 to slide to the right, the second connecting rod 806 can be driven The moving gear 803 moves upward, maintaining the meshing and transmission of the driven gear 804 and the moving gear 803, and at the same time the first connecting rod 805 also maintains the meshing and transmission of the sub-gear 802 and the moving gear 803, so that the main grinding rod 8 and the sub-grinding rod 810 can adapt to different amounts of vine leaves. The more vine leaves there are, the more the moving block 808 moves, and the larger the gap between the main grinding rod 8 and the sub-grinding rod 810 will be, so that more vine leaves can pass through, thereby avoiding the main grinding rod 8 and the sub-grinding rod 810 being stuck by the vine leaves, making grinding impossible, thereby improving the grinding efficiency.

[0071] At the same time, when the Vitex rotundifolia leaves pass through, the spring 809 will push the moving block 808 to reset, so that the main grinding rod 8 and the auxiliary grinding rod 810 are close to each other, maintaining the original grinding effect, thereby improving the extraction efficiency. And because a large number of Vitex rotundifolia leaves fill the grinding space, the Vitex rotundifolia leaves that are not fully ground are large in size. During the continuous rotation of the main grinding rod 8 and the auxiliary grinding rod 810, the larger Vitex rotundifolia leaves will be rolled back from the side wall of the extraction tank 2 by the main grinding rod 8 and the auxiliary grinding rod 810 to continue grinding between the main grinding rod 8 and the auxiliary grinding rod 810 until the volume is small and cannot be rolled up, so that the grinding is more complete and the extraction rate is increased.

[0072] When the grinding is completed, the ground vitex leaves and the vitex leaf oil-water mixture will be filtered through the filter plate 9, which will intercept the ground vitex leaves and only allow the vitex leaf oil-water mixture to flow into the bottom of the extraction tank 2, which is convenient for subsequent stirring and stratification and vitex leaf essential oil extraction.

[0073] After the vitex leaf oil-water mixture flows into the bottom of the extraction tank 2, when the double-headed telescopic rod 4 contracts, it will drive the trapezoidal plates 303 on both sides to slide on the base 1. Since the inclined parts of the trapezoidal plates 303 are slidably matched with the bottom of the threaded rod 11, the trapezoidal plates 303 will generate an upward thrust on the threaded rod 11. Since the threaded sleeve 10 is threadedly matched with the threaded rod 11 and the threaded sleeve 10 is welded to the bottom of the extraction tank 2, the threaded rod 11 will rotate upward, causing the stirring rod 12 to rotate upward as well. When the double-headed telescopic rod 4 is extended, the trapezoidal plates 303 will move to both sides, and the threaded rod 11 loses the trapezoidal plates. With the support of 303, due to its own gravity, the threaded rod 11 will move downward, and with the shearing effect of the threaded sleeve 10, the threaded rod 11 will rotate downward, causing the stirring rod 12 to rotate upward; thus, the stirring rod 12 rotates continuously and moves up and down, which will continuously stir the Vitex rapa oil-water mixture. Due to the effect of the rotational stirring, the Vitex rapa oil-water mixture will rotate accordingly. Due to the effect of the centrifugal force, the Vitex rapa oil-water mixture will quickly separate into layers. With the effect of the up and down stirring, the Vitex rapa oil-water mixture will be shaken more fully, further increasing its separation speed.

[0074] A sealing gasket is fixedly connected to the inner wall of the threaded sleeve 10 , and the sealing gasket can greatly increase the sealing performance of the device and reduce the leakage of essential oil from the threaded sleeve 10 .

[0075] When the mixture of Vitex rotundifolia oil and water is stirred and layered, since the density of water is greater than that of Vitex rotundifolia essential oil, the Vitex rotundifolia essential oil will float on the upper layer, while the water will sink to the lower layer. At this time, the controller 203 can be used to open the material dispensing valve 204 to discharge the water layer first. After the water layer is discharged, the controller 203 can be used to control the material dispensing valve 204 to quantitatively extract the Vitex rotundifolia essential oil.

[0076] Compared with the grinding device in the prior art, the present invention can automatically adjust its grinding gap according to the input amount and volume of the vitex rotundifolia leaves, effectively avoiding the device jamming caused by too many vitex rotundifolia leaves during the grinding process, thereby improving the pressing efficiency and extraction efficiency of the entire extraction process.

[0077] The present invention not only fully reduces the probability of device jamming during the grinding process, greatly improves the pressing efficiency and extraction efficiency, but also increases the extraction yield and reduces the cost of equipment maintenance.

[0078] Embodiment 2:

[0079] As attached Figure 2 As shown, the difference from the above embodiment is that a display 202 is fixedly connected to the side wall of the extraction tank 2 by bolts, and a controller 203 is used to control the opening and closing of the display 202.

[0080] The specific implementation process is as follows: the display 202 can display the entire process of extracting the essential oil from Vitex rotundifolia leaves, making it easy for operators to observe and control the entire process.

[0081] Embodiment 3:

[0082] As attached Figure 5 As shown, the difference from the above embodiment is that a method for analyzing and identifying the components of Vitex rotundifolia essential oil comprises the following steps:

[0083] S1, taking in Vitex rotundifolia essential oil: opening the taking in valve 204 and taking in 5 ml of Vitex rotundifolia essential oil.

[0084] S2, spectrum analysis of Vitex rotundifolia essential oil: prepare a spectrum analyzer, perform spectrum analysis on Vitex rotundifolia essential oil, and obtain target spectrum analysis results.

[0085] S3, comparative analysis of Vitex rotundifolia essential oil: Based on the neural network algorithm, a comparative analysis model is established, and the spectral analysis results of essential oils with different components are used to train the comparative analysis model. The comparative analysis model is used to compare the target spectral analysis results with the spectral analysis results of essential oils with different components to obtain the component analysis results.

[0086] The specific implementation process is as follows: before comparative analysis, the operator uses the spectral analysis results of essential oils with different components to train the comparative analysis model. The comparative analysis model marks and classifies each component to facilitate subsequent comparative identification of different components.

[0087] After the training is completed, the operator extracts the required volume of Vitex rotundifolia essential oil through the material extraction valve 204; the operator then uses the spectrum analyzer to obtain the spectrum analysis result of the target Vitex rotundifolia essential oil; the operator then uses the comparative analysis model to compare and analyze the spectrum analysis result of the target Vitex rotundifolia essential oil with the spectrum analysis results of essential oils composed of different components. When a certain spectral feature of the target Vitex rotundifolia essential oil matches the spectral feature of the spectrum of a certain component, the comparative analysis model will determine that it contains the component.

[0088] This enables the operator to quickly analyze the components of the extracted Vitex rotundifolia essential oil.

[0089] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention.

Claims

1. A method for extracting essential oil from Vitex rotundifolia leaves, characterized in that: The following steps are involved: S1, pretreatment of Vitex rotundifolia leaves: rinse the Vitex rotundifolia leaves with clean water for 10-15 minutes, dry the moisture on the surface of the Vitex rotundifolia leaves, and place the Vitex rotundifolia leaves into an extraction device; S2, pressing the vitex rotundifolia leaves: pressing the vitex rotundifolia leaves with the surface moisture dried for 5-10 minutes by an extraction device to obtain pressed vitex rotundifolia leaves and a pressed vitex rotundifolia leaf oil-water mixture; S3, grinding the vitex rotundifolia leaves: grinding the squeezed vitex rotundifolia leaves for 10-15 minutes by an extraction device to obtain ground vitex rotundifolia leaves and a ground vitex rotundifolia leaf oil-water mixture; S4, filtering the essential oil of Vitex rotundifolia: filtering the ground Vitex rotundifolia and the Vitex rotundifolia oil-water mixture through an extraction device to obtain a filtered Vitex rotundifolia oil-water mixture; S4, extraction of essential oil from vitex rotundifolia leaves: centrifuging the vitex rotundifolia leaf oil-water mixture for 15-20 minutes using an extraction device. After the centrifugation is completed, the essential oil from vitex rotundifolia leaves is extracted.

2. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 1, wherein In S1, the extraction device comprises a base (1), wherein a sliding groove is transversely provided in the base (1); an extraction tank (2) for extracting vitex rotundifolia essential oil is fixedly connected to the top of the base (1); a controller (203) is fixedly connected to the outer wall of the extraction tank (2), and a material extraction component for discharging vitex rotundifolia essential oil is provided on the outer wall of the extraction tank (2); and a top cover (201) is hingedly connected to the top of the extraction tank (2); A driving component for providing driving force is arranged outside the extraction tank (2), a grinding component for squeezing the vitex rotundifolia leaves and a separation component for intercepting the vitex rotundifolia leaves are arranged inside the extraction tank (2), and a stirring component for separating the vitex rotundifolia leaves oil-water mixture is arranged at the bottom of the extraction tank (2).

3. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 2, wherein: The driving assembly comprises a double-headed telescopic rod (4) and a plurality of vertical rods (3), wherein the vertical rods (3) are symmetrically arranged on both sides of the extraction tank (2), and the double-headed telescopic rod (4) is fixedly connected to the top of the extraction tank (2); A push rod (301) is integrally formed at the top of each vertical rod (3), and one end of the push rod (301) away from the vertical rod (3) is fixedly connected to the output shaft of the double-head telescopic rod (4); a push rod (302) is integrally formed at the middle of each vertical rod (3), and one end of the push rod (302) away from the vertical rod (3) penetrates the side wall of the extraction tank (2) and is fixedly connected to the extrusion plate (5); The bottom of the vertical rod (3) is integrally formed with a trapezoidal plate (303), and the trapezoidal plate (303) is horizontally slidably matched with the sliding groove; the controller (203) is used to control the opening and closing of the double-head telescopic rod (4).

4. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 3, wherein: The grinding assembly comprises a main grinding rod (8), both ends of the main grinding rod (8) are rotatably matched with a support plate (807), both ends of the main grinding rod (8) pass through the support plate (807) and are fixedly connected to a main gear (801); a driving member for providing power is fixedly connected to the side wall of the main gear (801) at one end, and a controller (203) is used to control the opening and closing of the driving member; A secondary gear (802) is meshed below the main gear (801), a moving gear (803) is meshed on one side of the secondary gear (802), a first connecting rod (805) is hinged on one side of the secondary gear (802) away from the support plate (807), and an end of the first connecting rod (805) away from the secondary gear (802) is hinged to the side of the moving gear (803) away from the support plate (807); A driven gear (804) is meshed above the moving gear (803), a second connecting rod (806) is hinged on the side of the moving gear (803) away from the support plate (807), and an end of the second connecting rod (806) away from the moving gear (803) is hinged to the side of the driven gear (804) away from the support plate (807); A secondary grinding rod (810) is fixedly connected to one side of the driven gear (804) close to the support plate (807); a transverse moving groove is opened on the support plate (807), and a moving block (808) is slidably fitted in the moving groove; both ends of the secondary grinding rod (810) pass through the moving block (808) and are rotatably fitted with the moving block (808); A plurality of springs (809) are fixedly connected between the side of the moving block (808) away from the main gear (801) and the inner wall of the moving groove; and the support plates (807) are fixedly connected to the middle of the extraction tank (2).

5. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 4, wherein: The partition assembly comprises a partition plate (6) arranged obliquely, the partition plate (6) being fixedly connected to the inner wall of the extraction tank (2), and the partition plate (6) being located between the extrusion plate (5) and the support plate (807); A grinding opening is formed in the middle of the partition plate (6), a telescopic plate (7) is fixedly connected to the grinding opening, and a controller (203) is used to control the opening and closing of the telescopic plate (7); the grinding opening is located above the main grinding rod (8) and the auxiliary grinding rod (810); a filter plate (9) is fixedly connected to the inner wall of the extraction tank (2), and the filter plate (9) is located below the main grinding rod (8) and the auxiliary grinding rod (810).

6. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 5, characterized in that: The stirring assembly comprises a threaded sleeve (10), the threaded sleeve (10) is fixedly connected to the bottom of the extraction tank (2), and the internal thread of the threaded sleeve (10) is matched with a threaded rod (11); a plurality of stirring rods (12) are fixedly connected to the upper end of the threaded rod (11), the bottom of the threaded rod (11) is conical, and the inclined parts of the trapezoidal plate (303) are all slidably matched with the bottom of the threaded rod (11).

7. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 6, characterized in that: The material taking component comprises a material taking pipe, which is connected to the lower side wall of the extraction tank (2), and a material taking valve (204) is fixedly connected in the material taking pipe. The controller (203) is used to control the opening and closing of the material taking valve (204).

8. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 7, characterized in that: A display (202) is fixedly connected to the side wall of the extraction tank (2), and the controller (203) is used to control the opening and closing of the display (202).

9. The method for extracting essential oil from Vitex rotundifolia leaves according to claim 8, characterized in that: In S1, before the Vitex rotundifolia leaves are placed in the extraction device, the double-headed telescopic rod (4) is in an extended state, and there is no debris in the extraction tank (2).

10. A method for analyzing and identifying the components of the essential oil of the leaves of the vine, based on the method for extracting the essential oil of the leaves of the vine according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1, extracting Vitex rotundifolia essential oil: opening the extracting valve (204) to obtain 3-5 ml of Vitex rotundifolia essential oil; S2, spectrum analysis of Vitex rotundifolia essential oil: prepare a spectrum analyzer, perform spectrum analysis on Vitex rotundifolia essential oil, and obtain target spectrum analysis results; S3, comparative analysis of Vitex rotundifolia essential oil: Based on the neural network algorithm, a comparative analysis model is established, and the spectral analysis results of essential oils with different components are used to train the comparative analysis model. The comparative analysis model is used to compare the target spectral analysis results with the spectral analysis results of essential oils with different components to obtain the component analysis results.

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