An essential oil fractionating device and method

Abstract

The application discloses an essential oil grading device and method, relates to the technical field of essential oils, and comprises a base, the upper surface of the base is provided with a collecting tank with an inverted concave cross section, the inner top surface of the collecting tank is rotationally provided with a central tank, the side surface of the central tank is circularly provided with a plurality of arc-shaped pressing plates which are uniformly distributed and matched with the central tank, and the solid particles are broken by centrifugal force in the centrifugal process, so that the breaking process is not required to be completed after the centrifugal process, additional time consumption is not required, the production efficiency is improved, and meanwhile, the rectangular blocks are clamped into the block grooves during the movement of the centrifugal cylinder, the movable plate is pulled to move, the positioning members are moved out of the positioning holes to release the fixation of the centrifugal cylinder, the centrifugal cylinder can be taken off by the staff after the centrifugal cylinder is moved out of the collecting tank, and when the centrifugal cylinder is lifted after the cleaning is completed, the pulling of the movable plate is released, the second spring is bounced, the positioning members are clamped into the positioning holes, and the centrifugal cylinder can be fixed again.

Description

Technical Field

[0001] This invention relates to the field of essential oil technology, specifically to an essential oil grading device and method. Background Technology

[0002] Red mandarin orange essential oil is a type of natural fragrance essential oil derived from the peel of Dahongpao red mandarin oranges from the Sichuan and Chongqing regions. It emits an enticing citrus aroma. Its main components are terpenes, sesquiterpenes, as well as compounds such as alcohols, aldehydes, ketones, and esters. It has the effects of expectoration, antitussive, analgesic, anti-inflammatory, antibacterial, anticancer, and gallstone dissolving. It can be used in the food, cosmetics, and pharmaceutical industries and has great development and application value.

[0003] After freezing and separating solid particles from crude mandarin orange essential oil, centrifugation is performed to remove the solid particles and colloidal substances, yielding crude mandarin orange essential oil. However, during the freezing process, some of the crude essential oil is also encased in the solid shells as solid particles are separated. To avoid wasting the crude essential oil, after centrifugation to remove solid particles and colloidal substances, the solid particles need to be removed and crushed, and the essential oil encased in the solid particles needs to be collected and recycled. Since this operation is performed after the centrifugation process, it increases the overall process time and reduces production efficiency. It also requires the purchase of new machines for crushing solid particles, which increases production costs. Therefore, those skilled in the art have proposed an essential oil grading device and method. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides an essential oil grading device and method, which solves the problems mentioned above.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an essential oil grading device and method, comprising a base, a collecting tank with an inverted concave cross-section mounted on the upper surface of the base, a central tank rotatably mounted on the inner top surface of the collecting tank, and a plurality of evenly distributed arc-shaped pressure plates adapted to the central tank mounted on the side of the central tank in a circular shape, each arc-shaped pressure plate having two extension rods extending into the central tank mounted on its inner side, each extension rod having a limit plate mounted at its end extending into the central tank, and a set of rectangular plates mounted on one side of each extension rod on the inner wall of the central tank, with a square rod mounted between each set of two rectangular plates. Each square rod is slidably mounted with a movable plate. Each square rod has a first spring fitted below the movable plate. One end of each first spring is fixedly connected to the movable plate, and the other end is fixedly connected to the nearest square rod. Each rectangular plate in each group is equipped with a pulley on its surface near the extension rod. Each movable plate has an extension plate installed on its side. Each extension plate has a steel wire rope installed on its upper surface. The other end of each steel wire rope is fixedly connected to the corresponding limiting plate. A centrifuge cylinder is fitted inside the collection tank outside the central tank. The centrifuge cylinder has a centrifuge cylinder opening on its inner bottom surface. A rectangular groove that extends into and fits the centrifuge cylinder is installed on the lower surface of the central tank.

[0006] As a further technical solution of the present invention, the upper surface of the base is equipped with two side plates corresponding to the side of the collection tank. Each side plate is equipped with a set of mounting plates. The upper surface of each mounting plate is equipped with a first motor. The drive end of each first motor passes through the mounting plate and is equipped with a screw whose other end is rotatably connected to another mounting plate in the group. Each screw is provided with a threaded seat.

[0007] As a further technical solution of the present invention, an opening is provided on the top surface of the groove of the collection tank, and a geometrical seat is installed between the two threaded seats directly above the collection tank. A second motor is installed at the center of the lower surface of the geometrical seat, and the drive end of the second motor passes through the geometrical seat and is installed with a fixed seat that extends through the opening into the collection tank and contacts the centrifuge cylinder.

[0008] As a further technical solution of the present invention, a slot is provided at the center of the upper surface of the fixed base, and a cavity is provided inside the fixed base on one side of the slot. A movable plate is provided in the cavity, and a second spring is provided on one side of the movable plate in the cavity. Two steel wire ropes extending to the outside of the fixed base are installed on the side of the movable plate, and a connecting block is installed at the ends of the two steel wire ropes extending to the outside of the fixed base.

[0009] As a further technical solution of the present invention, two rectangular blocks are installed on the side of the connecting block, a side seat is installed on the upper surface of the base directly below the connecting block, and a block groove is opened on the upper surface of the side seat directly below each rectangular block. A plurality of positioning elements extending into the slot are installed on the other side of the movable plate, and a card slot extending into the slot is installed at the center of the lower surface of the centrifuge cylinder. A plurality of positioning holes adapted to the positioning elements are opened on the side of the card slot.

[0010] As a further technical solution of the present invention, an inlet pipe is installed on the upper surface of the collection tank above the centrifuge cylinder and on one side of the central tank. A valve is provided on the inlet pipe. A faucet is installed on the side of the collection tank near the bottom. Several evenly distributed through holes are opened on the side of the centrifuge cylinder, and a semi-permeable membrane is provided in each through hole.

[0011] Specifically, the following steps are included:

[0012] S1. Open the valve and send the frozen mandarin orange essential oil into the area consisting of the centrifuge and the arc-shaped pressure plate through the feed pipe. Then close the valve and turn on the second motor. The running second motor drives the centrifuge to rotate through the fixed seat. The rotating centrifuge drives the central tank to rotate through the rectangular block, which in turn drives the mandarin orange essential oil in the area consisting of the two to rotate. Centrifugal force will cause the crude essential oil to enter the collection tank through the through hole and the semi-permeable membrane inside, while solid crystal particles and colloidal substances remain in the centrifuge.

[0013] S2. After a certain period of time, the speed of the centrifuge cylinder is increased, which in turn increases the speed of the arc-shaped pressure plates. As the speed increases, the centrifugal force increases, and each arc-shaped pressure plate moves away from the central tank. Each moving arc-shaped pressure plate moves the movable plate through the limit plate and the wire rope. Each moving movable plate stretches the first spring. At the same time, each moving arc-shaped pressure plate moves towards the inner wall of the centrifuge cylinder. When there are solid crystal particles between the arc-shaped pressure plates and the inner wall of the centrifuge cylinder, the arc-shaped pressure plates moving towards the centrifuge cylinder will squeeze the crystal particles and crush them. Then the essential oil and crude oil wrapped in the crystal particles flow out and enter the collection tank through the through hole and the semi-permeable membrane.

[0014] S3. After a period of time, the centrifuge speed slows down and the centrifugal force weakens. The first springs of each tension pull the arc-shaped pressure plates back to their original positions, and the solid particles continue to rotate in the area between them. Then the centrifuge speed increases again and the area between the arc-shaped pressure plates and the inner wall of the centrifuge is squeezed and crushed again through the above operation. Repeat the above operation several times until all the solid crystal particles in the centrifuge are crushed, so as to achieve the purpose of extracting all the red mandarin essential oil. Then turn off the second motor, open the tap, and discharge the extracted essential oil from the tap.

[0015] S4. The two running first motors drive the two screws to rotate. The two rotating screws drive the threaded seat to descend, which in turn drives the geometric seat and the centrifuge cylinder on its surface and other components to descend. During the descent, the two rectangular blocks on the connecting block are stuck into the corresponding two block slots, limiting the connecting block so that it cannot descend. At the same time, the fixed seat that continues to descend drives the other components to descend. Then, the stationary connecting block pulls the movable plate to move through the two steel wire ropes. The moving movable plate compresses the second spring and drives the positioning part to move.

[0016] S5. When the fixed seat reaches the bottom, the positioning component moves out of the positioning hole of the clamp, thus releasing the centrifuge tube. Then, remove the centrifuge tube from the fixed seat and pour out the broken crystal particles and colloidal substances inside. After that, reinstall the centrifuge tube on the fixed seat, so that the clamp is inserted into the clamp slot of the fixed seat. Then, the two first motors drive the two screws to reverse. Through the above operation, the rectangular seat rises, which drives the fixed seat and its surface components to rise. As the fixed seat continues to rise, the tension on the movable plate is released, and then each second spring rebounds, causing the positioning component to insert into the corresponding positioning hole to fix the centrifuge tube. Then, the rectangular rising fixed seat drives the connecting block to rise until the centrifuge tube completely enters the collection tank through the opening. The operation is completed.

[0017] Beneficial effects

[0018] This invention provides an essential oil grading device and method. Compared with the prior art, it has the following advantages:

[0019] 1. An essential oil grading device and method, wherein during centrifugation, the rotation speed is increased to increase the centrifugal force, thereby causing each arc-shaped pressure plate to move towards the inner wall of the centrifuge cylinder. During the movement, the arc-shaped pressure plates are used to squeeze and crush the solid crystalline particles between the arc-shaped pressure plates and the inner wall of the centrifuge cylinder, causing the essential oil encapsulated within to flow out. Thus, the centrifugal force is used to crush the solid particles during centrifugation, eliminating the need to wait until centrifugation is complete and saving extra time, thus accelerating production efficiency. At the same time, the crushing device has a simple structure and low manufacturing cost, which is more beneficial than purchasing an additional crushing device. During the movement of the centrifuge cylinder, a rectangular block is inserted into the block groove to limit the connecting block, thereby pulling the movable plate to move the positioning part out of the positioning hole and releasing the fixation of the centrifuge cylinder. After the centrifuge cylinder is removed from the collection tank, the operator can remove it. After cleaning, when the centrifuge cylinder rises, the pull on the movable plate is released, and the second spring rebounds, causing the positioning part to be inserted into the positioning hole, thus re-fixing the centrifuge cylinder. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of an essential oil grading device and method.

[0021] Figure 2A cross-sectional view of an essential oil grading device and method;

[0022] Figure 3 A cross-sectional view of the operation process of an essential oil grading device and method;

[0023] Figure 4 A schematic diagram of the internal structure of the crushing component in an essential oil grading device and method;

[0024] Figure 5 A partial cross-sectional view of the crushing component of an essential oil grading device and method;

[0025] Figure 6 A disassembled diagram of a centrifuge cylinder assembly for an essential oil grading device and method;

[0026] Figure 7 A cross-sectional view of the mounting base of an essential oil grading device and method;

[0027] Figure 8 This is a side view of a centrifuge cylinder of an essential oil grading device and method.

[0028] In the diagram: 1. Base; 2. Collection tank; 3. Central tank; 4. Rectangular plate; 5. Square rod; 6. Movable plate; 7. First spring; 8. Extension rod; 9. Limiting plate; 10. Arc-shaped pressure plate; 11. Pulley; 12. Extension plate; 13. Steel wire rope; 14. Centrifuge cylinder; 15. Rectangular groove; 16. Rectangular block; 17. Side plate; 18. Mounting plate; 19. First motor; 20. Screw; 21. Threaded seat; 22. G-shaped seat; 23. Second motor; 24. Fixed seat; 25. Slot; 26. Cavity; 27. Movable plate; 28. Second spring; 29. ​​Positioning component; 30. Connecting block; 31. Rectangular block; 32. Steel wire rope; 33. Side seat; 34. Block groove; 35. Through hole; 36. Locking space; 37. Positioning hole; 38. Feed pipe; 39. Valve; 40. Faucet; 41. Opening. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Please see Figure 1-8This invention provides a technical solution for an essential oil grading device and method: An essential oil grading device and method includes a base 1, a collection tank 2 with an inverted concave cross-section mounted on the upper surface of the base 1, a central tank 3 rotatably mounted on the inner top surface of the collection tank 2, and several evenly distributed arc-shaped pressure plates 10 adapted to the central tank 3 mounted on the side of the central tank 3 in a circular shape. Each arc-shaped pressure plate 10 has two extension rods 8 correspondingly mounted on its inner side, extending into the central tank 3. Each extension rod 8 has a limiting plate 9 mounted at its end extending into the central tank 3. The inner wall of the central tank 3 has a [missing information - likely a type of support or device]. A set of rectangular plates 4, with a square rod 5 installed between each pair of rectangular plates 4. A movable plate 6 is slidably mounted on each square rod 5. A first spring 7 is fitted under the movable plate 6 on each square rod 5. One end of each first spring 7 is fixedly connected to the movable plate 6, and the other end is fixedly connected to the nearest square rod 5. A pulley 11 is installed on the surface of the rectangular plates 4 near the extension rod 8 in each set. An extension plate 12 is installed on the side of each movable plate 6. A steel wire rope 13 is installed on the upper surface of each extension plate 12. The other end of each steel wire rope 13 is fixedly connected to the corresponding limiting plate 9. The collection tank 2 is in the middle The outer casing of the central tank 3 is fitted with a centrifuge cylinder 14. The inner bottom surface of the centrifuge cylinder 14 is provided with a centrifuge cylinder 14. A rectangular groove 15 extending into and fitting into the centrifuge cylinder 14 is installed on the lower surface of the central tank 3. In use, the second motor 23 is turned on, and the running second motor 23 drives the centrifuge cylinder 14 to rotate through the fixed base 24. The rotating centrifuge cylinder 14 drives the central tank 3 to rotate through the rectangular block 16, thereby driving the red mandarin orange essential oil in the area composed of the two to rotate. Through centrifugal force, the essential oil crude oil will enter the collection tank 2 through the through hole 35 and the semi-permeable membrane inside it, while solid crystal particles and colloidal substances remain in the centrifuge cylinder 14. Inside, after a certain period of time, the rotation speed of the centrifuge cylinder 14 is increased, which in turn increases the rotation speed of the arc-shaped pressure plate 10. As the rotation speed increases, the centrifugal force increases, and each arc-shaped pressure plate 10 moves away from the central tank 3. Each moving arc-shaped pressure plate 10 pulls the movable plate 6 to move through the limiting plate 9 and the wire rope 13. Each moving movable plate 6 stretches the first spring 7. At the same time, each moving arc-shaped pressure plate 10 moves towards the inner wall of the centrifuge cylinder 14. When there are solid crystalline particles between the arc-shaped pressure plate 10 and the inner wall of the centrifuge cylinder 14, the arc-shaped pressure plate 10 moving towards the centrifuge cylinder 14 will squeeze the crystalline particles and crush them.

[0031] Please see Figure 1-3Two side plates 17 are installed on the upper surface of the base 1, corresponding to the side of the collection tank 2. Each side plate 17 has a set of mounting plates 18 installed on its side. A first motor 19 is installed on the upper surface of each mounting plate 18. The drive end of each first motor 19 passes through the mounting plate 18 and is equipped with a screw 20 whose other end is rotatably connected to another mounting plate 18 in the same group. Each screw 20 is provided with a threaded seat 21. An opening 41 is opened on the top surface of the groove in the collection tank 2. A geometric seat 22 is installed between the two threaded seats 21 directly above the collection tank 2. A second motor 23 is installed at the center of the lower surface of the geometric seat 22. In use, the two running first motors 19 drive the two screws 20 to rotate. The two rotating screws 20 drive the threaded seats 21 to descend, thereby driving the geometric seat 22 and the centrifuge cylinder 14 on its surface and other components to descend.

[0032] Please see Figure 2-3 , Figure 7-8 The drive end of the second motor 23 passes through the geometric base 22 and is fitted with a fixed base 24 that extends through the opening 41 into the collection tank 2 and contacts the centrifuge cylinder 14. A slot 25 is provided at the center of the upper surface of the fixed base 24. A cavity 26 is provided inside the fixed base 24 on one side of the slot 25. A movable plate 27 is installed inside the cavity 26. A second spring 28 is provided inside the cavity 26 on one side of the movable plate 27. Two steel wire ropes 32 extending to the outside of the fixed base 24 are correspondingly installed on the side of the movable plate 27. A connecting block 30 is installed at the ends of the two steel wire ropes 32 extending to the outside of the fixed base 24. Two rectangular blocks 31 are correspondingly installed on the side of the connecting block 30. A side seat 33 is installed on the upper surface of the base 1 directly below the connecting block 30. A block groove 34 is provided on the upper surface of the side seat 33 directly below each rectangular block 31. Multiple... The positioning element 29 extends into the slot 25. The lower surface of the centrifuge cylinder 14 is equipped with a slot 36 extending into the slot 25. The side of the slot 36 has several positioning holes 37 that are adapted to the positioning element 29. During use, during the descent, the two rectangular blocks 31 on the connecting block 30 are inserted into the corresponding two block slots 34, limiting the connecting block 30 so that it cannot descend. At the same time, the fixed seat 24 continues to descend, driving other components to descend. Then, the stationary connecting block 30 pulls the movable plate 27 to move through the two steel wire ropes 32. The moving movable plate 27 compresses the second spring 28 and drives the positioning element 29 to move. When the fixed seat 24 reaches the bottom, the positioning element 29 moves out of the positioning hole 37 of the slot 36, and the centrifuge cylinder 14 can be released. Then, the centrifuge cylinder 14 is removed from the fixed seat 24, and the broken crystal particles and colloidal substances inside are poured out.

[0033] Please see Figure 1-3The upper surface of the collection tank 2 is above the centrifuge cylinder 14 and on one side of the central tank 3. A feed pipe 38 is installed on the feed pipe 38. A valve 39 is installed on the feed pipe 38. A faucet 40 is installed on the side of the collection tank 2 near the bottom. Several evenly distributed through holes 35 are opened on the side of the centrifuge cylinder 14. A semi-permeable membrane is installed in each through hole 35. When in use, the valve 39 is opened, and the frozen red mandarin orange essential oil is sent into the area composed of the centrifuge cylinder 14 and the arc-shaped pressure plate 10 through the feed pipe 38.

[0034] Specifically, the following steps are included:

[0035] S1. Open valve 39 and send the frozen mandarin orange essential oil into the area composed of centrifuge cylinder 14 and arc-shaped pressure plate 10 through feed pipe 38. Then close valve 39 and turn on second motor 23. The running second motor 23 drives centrifuge cylinder 14 to rotate through fixed seat 24. The rotating centrifuge cylinder 14 drives the central tank 3 to rotate through rectangular block 16, which in turn drives the mandarin orange essential oil in the area composed of the two to rotate. Centrifugal force will cause the essential oil crude oil to enter the collection tank 2 through through hole 35 and the semi-permeable membrane inside it, while solid crystal particles and colloidal substances remain in centrifuge cylinder 14.

[0036] S2. After a certain period of time, the rotation speed of the centrifuge cylinder 14 is increased, which in turn increases the rotation speed of the arc-shaped pressure plate 10. As the rotation speed increases, the centrifugal force increases, and each arc-shaped pressure plate 10 moves away from the central tank 3. Each moving arc-shaped pressure plate 10 pulls the movable plate 6 through the limiting plate 9 and the wire rope 13. Each moving movable plate 6 stretches the first spring 7. At the same time, each moving arc-shaped pressure plate 10 moves towards the inner wall of the centrifuge cylinder 14. When there are solid crystalline particles between the arc-shaped pressure plate 10 and the inner wall of the centrifuge cylinder 14, the arc-shaped pressure plate 10 moving towards the centrifuge cylinder 14 will squeeze the crystalline particles and crush them. Then the essential oil and crude oil wrapped by the crystalline particles flow out and enter the collection tank 2 through the through hole 35 and the semi-permeable membrane.

[0037] S3. After a period of time, the speed of the centrifuge cylinder 14 slows down and the centrifugal force weakens. The first spring 7 pulls the arc-shaped pressure plate 10 back to its original position, and the solid particles continue to rotate in the area between them. Then the speed of the centrifuge cylinder 14 speeds up again. Through the above operation, the area between the arc-shaped pressure plate 10 and the inner wall of the centrifuge cylinder 14 is squeezed and crushed again. The above operation is repeated several times until all the solid crystal particles in the centrifuge cylinder 14 are crushed, so as to achieve the purpose of extracting all the red mandarin essential oil. Then the second motor 23 is turned off and the tap 40 is opened to discharge the extracted essential oil from the tap 40.

[0038] S4. The two operating first motors 19 drive the two screws 20 to rotate. The two rotating screws 20 drive the threaded seat 21 to descend, which in turn drives the geometric seat 22 and the centrifuge cylinder 14 on its surface and other components to descend. During the descent, the two rectangular blocks 31 on the connecting block 30 are inserted into the corresponding two block slots 34, which limit the connecting block 30 so that it cannot descend. At the same time, the fixed seat 24 continues to descend, which drives the other components to descend. Then the stationary connecting block 30 pulls the movable plate 27 to move through the two steel wire ropes 32. The moving movable plate 27 compresses the second spring 28 and drives the positioning part 29 to move.

[0039] S5. When the fixed base 24 reaches the bottom, the positioning element 29 moves out of the positioning hole 37 of the slot 36, thus releasing the fixation of the centrifuge cylinder 14. Then, the centrifuge cylinder 14 is removed from the fixed base 24, and the broken crystal particles and colloidal substances inside are poured out. After that, the centrifuge cylinder 14 is reinstalled on the fixed base 24, so that the slot 36 is inserted into the slot 25 of the fixed base 24. Then, the two first motors 19 drive the two screws 20 to reverse. Through the above operation, the rectangular base 22 rises, which drives the fixed base 24 and its surface components to rise. As the fixed base 24 rises continuously, the pull on the movable plate 27 is released, and then each of the second springs 28 rebounds and drives the positioning element 29 to insert into the corresponding positioning hole 37 to fix the centrifuge cylinder 14. Then, the rectangular rising fixed base 24 drives the connecting block 30 to rise until the centrifuge cylinder 14 completely enters the collection tank 2 through the opening 41, and the operation is completed.

Claims

1. An essential oil fractionating device comprising a base (1), characterised in that, A collection tank (2) with an inverted concave cross-section is installed on the upper surface of the base (1). A central tank (3) is rotatably installed on the inner top surface of the collection tank (2). Several evenly distributed arc-shaped pressure plates (10) adapted to the central tank (3) are installed on the side of the central tank (3) in a circular shape. Two extension rods (8) extending into the central tank (3) are installed on the inner side of each arc-shaped pressure plate (10). A limit plate (9) is installed at the end of each extension rod (8) extending into the central tank (3). A set of rectangular plates (4) is installed on one side of each extension rod (8) of the inner wall of the central tank (3). A square rod (5) is installed between each pair of rectangular plates (4). A movable plate (6) is slidably installed on each square rod (5). A first spring (7) is fitted on each square rod (5) below the movable plate (6). One end of each first spring (7) is fixedly connected to the movable plate (6), and the other end is fixedly connected to the nearest square rod (5). The rectangular plates (4) closest to the extension rod (8) in each set are... Each of the three movable plates (4) is equipped with pulleys (11), and each movable plate (6) is equipped with an extension plate (12) on its side. Each extension plate (12) is equipped with a steel wire rope (13) on its upper surface. The other end of each steel wire rope (13) is fixedly connected to the corresponding limiting plate (9). The collecting tank (2) is fitted with a centrifuge cylinder (14) outside the central tank (3). The inner bottom surface of the centrifuge cylinder (14) is provided with a rectangular groove (15). The lower surface of the central tank (3) is equipped with a device extending to the centrifuge cylinder. (14) A rectangular block is fitted inside and to which the centrifuge cylinder (14) drives the central tank to rotate through the rectangular block. An inlet pipe (38) is installed on the upper surface of the collection tank (2) above the centrifuge cylinder (14) and on one side of the central tank (3). A valve (39) is provided on the inlet pipe (38). A faucet (40) is installed on the side of the collection tank (2) near the bottom. Several evenly distributed through holes (35) are opened on the side of the centrifuge cylinder (14). A semi-permeable membrane is provided in each through hole (35).

2. The essential oil grading device according to claim 1, characterized in that, The upper surface of the base (1) is equipped with two side plates (17) corresponding to the side of the collection tank (2). Each side plate (17) is equipped with a set of mounting plates (18). The upper surface of each mounting plate (18) is equipped with a first motor (19). The drive end of each first motor (19) passes through the mounting plate (18) and is equipped with a screw (20) whose other end is rotatably connected to another mounting plate (18) in the group. Each screw (20) is provided with a threaded seat (21).

3. The essential oil grading device according to claim 2, characterized in that, An opening (41) is provided on the top surface of the groove of the collection tank (2). A geometrical seat (22) is installed between the two threaded seats (21) directly below the collection tank (2). A second motor (23) is installed at the center of the lower surface of the geometrical seat (22). The drive end of the second motor (23) passes through the geometrical seat (22) and is installed with a fixed seat (24) that extends through the opening (41) into the collection tank (2) and contacts the centrifuge cylinder (14).

4. The essential oil grading device according to claim 3, characterized in that, The upper surface of the fixed base (24) has a slot (25) at its center. The interior of the fixed base (24) has a cavity (26) on one side of the slot (25). A movable plate (27) is provided in the cavity (26). A second spring (28) is provided on one side of the movable plate (27) in the cavity (26). Two steel wire ropes (32) extending to the outside of the fixed base (24) are installed on the side of the movable plate (27). The ends of the two steel wire ropes (32) extending to the outside of the fixed base (24) are connected by a connecting block (30).

5. The essential oil grading device according to claim 4, characterized in that, Two rectangular blocks (31) are installed on the side of the connecting block (30). A side seat (33) is installed on the upper surface of the base (1) directly below the connecting block (30). A block groove (34) is opened on the upper surface of the side seat (33) directly below each rectangular block (31). A plurality of positioning elements (29) extending into the slot (25) are installed on the other side of the movable plate (27). A card slot (36) extending into the slot (25) is installed at the center of the lower surface of the centrifuge cylinder (14). A plurality of positioning holes (37) that are adapted to the positioning elements (29) are opened on the side of the card slot (36).

6. The method of using the essential oil grading device according to claim 5, characterized in that, Specifically, the following steps are included: S1. Open valve (39) and send the frozen mandarin orange essential oil into centrifuge cylinder (14) and arc-shaped pressure plate through feed pipe (38). In the area composed of (10), the valve (39) is then closed and the second motor (23) is turned on. The running second motor (23) drives the centrifuge cylinder (14) to rotate through the fixed seat (24). The rotating centrifuge cylinder (14) drives the central tank (3) to rotate through the rectangular block (16), which in turn drives the red mandarin oil in the area composed of the two to rotate. Through centrifugal force, the essential oil crude oil will enter the collection tank (2) through the through hole (35) and the semi-permeable membrane inside, while solid crystal particles and colloidal substances remain in the centrifuge cylinder (14). S2. After a period of time, the rotation speed of the centrifuge tube (14) is increased, and the rotation speed of the arc-shaped pressure plate (10) increases. After the rotation speed increases, the centrifugal force increases, and each arc-shaped pressure plate (10) moves away from the central tank (3). Each moving arc-shaped pressure plate (10) pulls the movable plate (6) through the limiting plate (9) and the wire rope (13). Each moving movable plate (6) stretches the first spring (7). At the same time, each moving arc-shaped pressure plate (10) moves towards the inner wall of the centrifuge tube (14). When there are solid crystal particles between the arc-shaped pressure plate (10) and the inner wall of the centrifuge tube (14), the arc-shaped pressure plate (10) moving towards the centrifuge tube (14) will squeeze the crystal particles and crush them. Then the essential oil and crude oil wrapped by the crystal particles flow out and enter the collection tank (2) through the through hole (35) and the semi-permeable membrane. S3. After a period of time, the speed of the centrifuge tube (14) slows down and the centrifugal force weakens. The first spring (7) pulls the arc-shaped pressure plate (10) back to its original position, and the solid particles continue to rotate in the area between the two. Then the speed of the centrifuge tube (14) speeds up again. Through the above operation, the area between the arc-shaped pressure plate (10) and the inner wall of the centrifuge tube (14) is squeezed and crushed again. Repeat the above operation several times until all the solid crystal particles in the centrifuge tube (14) are crushed, so as to achieve the purpose of extracting all the red mandarin oil. Then the second motor (23) is turned off and the tap (40) is opened to discharge the extracted oil from the tap (40). S4. Two running first motors (19) drive two screws (20) to rotate. The two rotating screws (20) drive the threaded seat (21) to descend, thereby driving the geometric seat (22) and the centrifuge cylinder (14) on its surface and other components to descend. During the descent, the two rectangular blocks (31) on the connecting block (30) are inserted into the corresponding two block slots (34), limiting the connecting block (30) so that it cannot descend. At the same time, the fixed seat (24) that continues to descend drives other components to descend. Then the stationary connecting block (30) pulls the movable plate (27) to move through the two steel wire ropes (32). The moving movable plate (27) compresses the second spring (28) and drives the positioning part (29) to move. S5. When the fixed base (24) reaches the bottom, the positioning part (29) moves out of the positioning hole (37) of the slot (36), and the centrifuge tube (14) can be released. Then, the centrifuge tube (14) is removed from the fixed base (24), and the broken crystal particles and colloidal substances inside are poured out. Then, the centrifuge tube (14) is reinstalled on the fixed base (24), so that the slot (36) is inserted into the slot (25) of the fixed base (24). Then, the two first motors (19) drive the two screws (20) to reverse. The above operation causes the rectangular seat (22) to rise, which in turn causes the fixed seat (24) and its surface components to rise. As the fixed seat (24) rises, the tension on the movable plate (27) is released, and then each of the second springs (28) rebounds and causes the positioning piece (29) to be inserted into the corresponding positioning hole (37) to fix the centrifuge tube (14). Then the rectangular rising fixed seat (24) causes the connecting block (30) to rise until the centrifuge tube (14) is completely inserted into the collection tank (2) through the opening (41), and the operation is completed.

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