Cosmetic plant essential oil extraction equipment and extraction method

Abstract

The present invention relates to the technical field of essential oil extraction, and specifically to a cosmetic plant essential oil extraction device and an extraction method, comprising a tank body and a mounting frame, the mounting frame comprising a bottom frame and a top frame, the tank body being fixedly mounted on the bottom frame, the bottom of the tank body being connected to a collecting barrel through a discharge pipe, a pressure head being arranged in the tank body, the pressure head being driven by a first driving mechanism connected to the top frame, a rotating cylinder being arranged in the tank body, and two second pressing mechanisms being arranged at the bottom of the rotating cylinder. The present invention uses the pressure head to preliminarily press the material to obtain essential oil, gradually introduces the material under the rotating cylinder through a feed trough, drives the rotating cylinder to rotate through a second motor, causes the filter press to perform secondary rolling on a small amount of material, and drives the pricking needle at the bottom of the pressing block under the action of the transmission mechanism to continuously pierce the material under the filter press, so as to facilitate piercing the oil capsule in the material, further improve the extraction effect of the essential oil, and avoid waste of material.

Description

Technical Field

[0001] The invention relates to the technical field of essential oil extraction, and in particular to a cosmetic plant essential oil extraction device and an extraction method. Background Art

[0002] Plant essential oil is a kind of oily volatile liquid with aromatic smell. Due to its volatility and aromatic characteristics, it is widely used as a raw material for making cosmetics. There are many types of plant essential oils. Among them, citrus essential oils are very common in the production of daily cosmetics. The peel of citrus fruits contains a large number of oil sacs. When it is not fully mature, the oil sacs are relatively full, which is suitable for extracting the essential oil inside the oil sacs.

[0003] In the prior art, citrus essential oils can be extracted by cold pressing, in which the cut peels are pressed by pressing equipment such as a screw press. On the one hand, larger oil sacs are directly crushed by pressure, and on the other hand, the outer surface of the peel is rubbed by a rotating component to cut the oil sacs in the peel. Then, the oil sacs are pressed to be cut. However, the oil sacs in the peel are dense and small in size. This method is difficult to extract the oil sacs. The extraction rate is too low. After the extraction is completed, there are still a certain density of oil sacs on the peel that have not been destroyed. Therefore, it is easy to cause waste and the yield of essential oil is low. Summary of the invention

[0004] The purpose of the present invention is to solve the problems in the background technology and to propose a cosmetic plant essential oil extraction device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a cosmetic plant essential oil extraction device, comprising a tank body and a mounting frame, the mounting frame comprising a bottom frame and a top frame, the bottom frame and the top frame are fixedly connected, the tank body is fixedly mounted on the bottom frame, the top of the tank body is open, a material port is provided on the tank body, the bottom of the tank body is connected to a collecting barrel through a discharge pipe, a first valve is provided on the discharge pipe, an outer wall of the collecting barrel is fixedly connected to the bottom frame, a second valve is provided at the outlet of the collecting barrel, a water inlet is provided on the outer wall of the tank body, a pressure head is provided in the tank body, and the pressure head is driven by a first driving mechanism connected to the top frame;

[0006] The first driving mechanism includes two symmetrical hydraulic cylinders and a first motor, which are fixedly mounted on the top frame. The upper surface of the pressure head is rotatably connected to a connecting plate, the telescopic end of the hydraulic cylinder is hinged on the connecting plate, and the pressure head is sleeved on the output shaft of the first motor.

[0007] In the above-mentioned cosmetic plant essential oil extraction equipment, a rotating cylinder is arranged in the tank body, a filter plate is fixedly installed below the rotating cylinder and on the inner wall of the tank body, a uniformly distributed feed groove is opened on the outer wall of the rotating cylinder, a ring groove is opened on the annular wall of the rotating cylinder, a filter baffle corresponding to the feed groove is arranged on the inner annular wall of the tank body, and two second pressing mechanisms are arranged at the bottom of the rotating cylinder, the second pressing mechanism includes a groove, a filter cartridge arranged in the groove and a puncture mechanism arranged in the filter cartridge, the puncture mechanism includes a box body, a pressure block and a number of puncture needles installed on the lower surface of the pressure block, a shaft rod 1 is fixedly installed in the groove, the shaft rod 1 and the box body are an integrated structure, the filter cartridge is rotatably arranged on the shaft rod 1, a movable groove is opened in the box body, and the pressure block is inserted in the movable groove.

[0008] In the above-mentioned cosmetic plant essential oil extraction equipment, a convex plate with an arc structure is fixedly installed on the upper surface of the rotating cylinder and located between any two feed troughs, and a convex rod is fixedly installed on the upper surface of any convex plate and located in the middle thereof, and the convex rod is driven by a pressure head slidably connected thereto.

[0009] In the above-mentioned cosmetic plant essential oil extraction equipment, an L-shaped wire groove corresponding to the second pressing mechanism is provided in the rotating cylinder, and two wire grooves corresponding to the second pressing mechanism are provided, and the two wire grooves are symmetrical to each other. The ends of the two wire grooves close to each other respectively pass through the two ends of the shaft rod and are connected to the box body. Two sliders are horizontally slidably connected to the inner wall of the box body, and the bottom of the two sliders are fixedly installed with an L-shaped connecting rod. The upper surface of the pressing block is provided with two inclined surfaces, and the two connecting rods are respectively slidably connected to the two inclined surfaces, and the two sliders are respectively driven by two sets of transmission mechanisms.

[0010] In the above-mentioned cosmetic plant essential oil extraction equipment, the transmission mechanism includes a tooth groove, a gear, a plurality of helical teeth in a triangular structure installed on one side of the gear, a pull rope and a lever assembly. The tooth groove is provided on the side wall of the filter press cylinder, the gear is rotatably arranged in the groove, the tooth groove is meshed with the gear, a slide groove is provided on the side wall of the groove, one end of the slide groove passes through the inner wall of the wire groove, one end of the lever assembly passes through the slide groove, the two ends of the pull rope are respectively connected to the lever assembly and the slider, and the two sliders in the same box body are connected by a tension spring arranged in the box body.

[0011] In the above-mentioned cosmetic plant essential oil extraction equipment, a through groove is opened on the rotating cylinder, a second motor is fixedly installed on the upper surface of the collecting barrel, a second shaft is fixedly installed on the output shaft of the second motor, a screw blade is arranged on the second shaft and located in the through groove, and one end of the second shaft extends out of the through groove and is fixedly installed with a push plate with an arc structure.

[0012] In the above-mentioned cosmetic plant essential oil extraction equipment, two symmetrically arranged oblique rods are fixedly mounted on the lower surface of the rotating cylinder.

[0013] In addition, the present invention also discloses a method for extracting cosmetic plant essential oils, the specific steps of which are as follows:

[0014] S1. Setting the tank: Control the pressure head to move up by the hydraulic cylinder, and drive the rotating cylinder to rotate by a specified angle by the first motor so that the filter baffle completely blocks the feed trough to prevent the material from falling directly into the feed trough, and connect the water inlet to the water source;

[0015] S2. Filling materials: Fill the materials into the tank through the material port, first spread the materials on the upper surface of the rotating cylinder, and then, when filling the materials, continuously compact the materials by controlling the pressure head until the materials reach the required pressing height;

[0016] S3, squeezing materials: controlling the hydraulic cylinder to apply a specified pressure to the pressure head to squeeze the materials to obtain the squeezed extract, controlling the rotating cylinder to rotate a specified angle to stagger the feed trough and the filter baffle, controlling the hydraulic cylinder to reciprocate and vibrate the materials, and at the same time driving the push plate to rotate through the second motor, introducing the materials through the feed trough to the bottom of the rotating cylinder, performing secondary rolling on the materials through the filter press, and puncturing the oil sac of the materials with the help of the needle, and further collecting the extracts, and the extracts and water enter the collection barrel through the filter plate;

[0017] S4, separation of extract: the density of the extract is lower than that of water and floats on top of the water. The water is discharged by controlling the second valve to obtain a pure extract;

[0018] S5. Clean the tank body: close the first valve, take out the material above the rotating cylinder through the material port, inject water into the tank body through the water inlet, control the rotation of the rotating cylinder to make the water flow wash down the material attached to the feed trough and control the water to cover the rotating cylinder, control the filter baffle to block the feed trough, start the second motor, and guide the material under the rotating cylinder out of the rotating cylinder through the rotation of the screw blade to facilitate its removal from the tank body.

[0019] Compared with the prior art, the advantages of the present invention are:

[0020] 1. The material is initially squeezed by the pressure head to obtain essential oil, and the material is gradually introduced into the bottom of the rotating cylinder through the feed trough. The rotating cylinder is driven by the second motor to rotate, so that the filter press performs secondary rolling on a small amount of material to improve the extraction effect of essential oil.

[0021] 2. The filter press rotates, and the slider is driven to slide back and forth under the action of the transmission mechanism, and then the pressing block is driven to vibrate up and down through the connecting rod, so that the needle set at the bottom of the pressing block continuously punctures the material under the filter press, which is convenient for puncturing the oil sacs in the material, further improving the extraction effect of essential oils and avoiding waste of materials.

[0022] 3. The second motor drives the screw blade to rotate, so that the material under the rotating cylinder is lifted to the top of the rotating cylinder. At the same time, by rotating the push plate, the material above the rotating cylinder is introduced into the bottom of the rotating cylinder through the feed trough, and the material in the tank is gradually rolled and punctured for the second time, so as to improve the extraction efficiency of the material.

[0023] 4. Through the filtration of the filter plate, the essential oil and water are introduced into the collection barrel, and the peels are left on the filter plate. By controlling the second valve, the water in the collection barrel is discharged to collect the pure essential oil. By controlling the first valve, the inside of the tank is rinsed with water. The second motor drives the screw blade and the push plate to rotate. Under the action of the water flow, the peels under the rotating cylinder are easily transferred to the top of the rotating cylinder, which is convenient for cleaning the tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0025] Figure 2 It is a partial cross-sectional structural schematic diagram of the present invention.

[0026] Figure 3 The present invention Figure 2 Schematic diagram of the local enlarged structure at point A in the middle.

[0027] Figure 4 The present invention Figure 2 Schematic diagram of the local enlarged structure at point B in the middle.

[0028] Figure 5 The present invention Figure 2 Schematic diagram of the locally enlarged x structure at C in the middle.

[0029] Figure 6 It is a schematic diagram of the three-dimensional cross-sectional structure of the groove of the present invention.

[0030] Figure 7 The present invention Figure 6 Schematic diagram of the local enlarged structure at point D in the middle.

[0031] Figure 8 It is a schematic diagram of the three-dimensional structure of the pressure head and the rotating cylinder of the present invention.

[0032] Fig. 9 It is a three-dimensional structural schematic diagram of the filter press cylinder and the inclined rod of the present invention.

[0033] Fig.10 The present invention Fig. 9 Schematic diagram of the local enlarged structure at point E in the middle.

[0034] Fig.11 It is a three-dimensional structural schematic diagram of the filtering baffle of the present invention.

[0035] In the figure: 1, tank body; 21, top frame; 22, bottom frame; 11, material inlet; 12, collection bucket; 13, first valve; 14, second valve; 15, water inlet; 16, pressure head; 17, hydraulic cylinder; 18, first motor; 19, connecting plate; 110, filter plate; 3, rotating cylinder; 31, feed trough; 32, annular groove; 33, filter baffle; 111, groove; 112, filter cartridge; 113, box body; 114, Pressure block; 115, needle; 116, shaft rod one; 117, movable groove; 34, convex plate; 35, convex rod; 36, wire groove; 37, slider; 38, connecting rod; 118, inclined surface; 39, tooth groove; 4, gear; 41, oblique tooth; 42, pull rope; 43, lever assembly; 119, slide groove; 44, tension spring; 45, through groove; 5, second motor; 51, shaft rod two; 52, screw blade; 53, push plate; 46, oblique rod. DETAILED DESCRIPTION

[0036] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0037] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] Reference Figure 1-Figure 11A cosmetic plant essential oil extraction device comprises a tank body 1 and a mounting frame, the mounting frame comprises a bottom frame 22 and a top frame 21, the bottom frame 22 and the top frame 21 are fixedly connected, the tank body 1 is fixedly installed on the bottom frame 22, the top of the tank body 1 is open, a material port 11 is provided on the tank body 1, the bottom of the tank body 1 is connected to a collecting barrel 12 through a discharge pipe, a first valve 13 is provided on the discharge pipe, the outer wall of the collecting barrel 12 is fixedly connected to the bottom frame 22, a second valve 14 is provided at the outlet of the collecting barrel 12, a water inlet 15 is provided on the outer wall of the tank body 1, a pressure head 16 is provided in the tank body 1, and the pressure head 16 is connected to the top frame The first driving mechanism on 21 includes two symmetrical hydraulic cylinders 17 and a first motor 18. The two hydraulic cylinders 17 and the first motor 18 are fixedly mounted on the top frame 21. The upper surface of the pressure head 16 is rotatably connected with a connecting plate 19. The telescopic end of the hydraulic cylinder 17 is hinged on the connecting plate 19. The pressure head 16 is sleeved on the output shaft of the first motor 18. The pressure head 16 is driven upward by the hydraulic cylinder 17, and the material is poured into the tank body 1 through the material port 11. The pressure head 16 is pressed down to squeeze the material in the tank body 1 to obtain the extract, and the extract is flushed into the collection bucket 12 by connecting the water source through the water inlet 15.

[0039] A rotating cylinder 3 is arranged in the tank body 1, a filter plate 110 is fixedly installed below the rotating cylinder 3 and on the inner wall of the tank body 1, a uniformly distributed feed groove 31 is opened on the outer wall of the rotating cylinder 3, an annular groove 32 is opened on the annular wall of the rotating cylinder 3, a filter baffle 33 corresponding to the feed groove 31 is arranged on the inner annular wall of the tank body 1, two second pressing mechanisms are arranged at the bottom of the rotating cylinder 3, the second pressing mechanism includes a groove 111, a filter cartridge 112 arranged in the groove 111 and a puncture mechanism arranged in the filter cartridge 112, the puncture mechanism includes a box body 113, a pressing block 114 and a plurality of puncture needles 115 installed on the lower surface of the pressing block 114, the groove A shaft rod 116 is fixedly installed in the groove 111, and the shaft rod 116 and the box body 113 are of an integrated structure. The filter cartridge 112 is rotatably set on the shaft rod 116. A movable groove 117 is opened in the box body 113, and the pressing block 114 is inserted in the movable groove 117. Driven by the first motor 18, the squeezed material enters the bottom of the rotating cylinder 3 through the feed groove 31, and the rotating cylinder 3 is driven to rotate by the first motor 18. The filter plate 110 is used to separate the material and the extract. The material is rolled for the second time by the filter cartridge 112, and the oil bag of the material is punctured with the puncture mechanism to further collect the extract in the material, thereby avoiding waste and improving material utilization.

[0040] A convex plate 34 with an arc-shaped structure is fixedly installed on the upper surface of the rotating cylinder 3 and located between any two feed troughs 31. A convex rod 35 is fixedly installed on the upper surface of any convex plate 34 and located in the middle thereof. The convex rod 35 is driven by a pressure head 16 slidably connected thereto, and the pressure head 16 is driven to rotate by the first motor 18, and the convex rod 35 is driven to rotate by the pressure head 16, thereby driving the rotating cylinder 3 to rotate.

[0041] A wire groove 36 of L-shaped structure corresponding to the second pressing mechanism is provided in the rotating cylinder 3. Any wire groove 36 corresponding to the second pressing mechanism is provided with two wire grooves 36, and the two wire grooves 36 are symmetrical to each other. The ends of the two wire grooves 36 close to each other respectively pass through the two ends of the shaft rod 116 and are connected to the box body 113. Two sliders 37 are horizontally slidably connected to the inner wall of the box body 113. The bottoms of the two sliders 37 are fixedly installed with connecting rods 38 of L-shaped structure. The upper surface of the pressing block 114 is provided with two inclined surfaces 118, and the two connecting rods 38 are slidably connected to the two inclined surfaces 118 respectively. The two sliders 37 are driven by two sets of transmission mechanisms respectively. When the filter press 112 performs secondary rolling on the material, the slider 37 and the connecting rod 38 installed on the lower surface of the slider 37 are driven by the transmission mechanism to move, and the inclined surface 118 is driven by the connecting rod 38, thereby driving the pressing block 114 to move up and down, thereby driving the needle 115 to continuously poke the oil bag of the material, so as to completely puncture the oil bag in the material and avoid waste.

[0042] The transmission mechanism includes a tooth groove 39, a gear 4, a plurality of triangular helical teeth 41 installed on one side of the gear 4, a pull rope 42 and a lever assembly 43. The tooth groove 39 is provided on the side wall of the filter press 112. The gear 4 is rotatably arranged in the groove 111. The tooth groove 39 meshes with the gear 4. A slide groove 119 is provided on the side wall of the groove 111. One end of the slide groove 119 passes through the inner wall of the wire groove 36. One end of the lever assembly 43 passes through the slide groove 119. Both ends of the pull rope 42 are connected to the lever assembly 43 and the slider 37, respectively. Two sliders 37 in a box body 113 are connected by a tension spring 44 arranged in the box body 113. When the filter press 112 performs secondary rolling on the material, the driving gear 4 and the bevel teeth 41 arranged on the gear 4 rotate, and the bevel teeth 41 continuously squeeze and drive the lever assembly 43. The pull rope 42 is pulled by the lever assembly 43 to further drive the slider 37 to move. In the gap where the bevel teeth 41 are separated from the lever assembly 43, the slider 37 is reset by the tension spring 44, thereby driving the needle 115 to continuously vibrate up and down to pierce the material.

[0043] A through groove 45 is provided on the rotating cylinder 3, and a second motor 5 is fixedly provided on the upper surface of the collecting barrel 12. A second shaft rod 51 is fixedly installed on the output shaft of the second motor 5, and a screw blade 52 is provided on the second shaft rod 51 and in the through groove 45. One end of the second shaft rod 51 extends out of the through groove 45 and is fixedly provided with a pushing plate 53 with an arc structure. When the material is being rolled, the second motor 5 drives the second shaft rod 51 to rotate, and the screw blade 52 rotates to lift the material to the squeezing space above the rotating cylinder 3. The pushing plate 53 rotates to continuously feed the material in the squeezing space into the secondary rolling space below through the feed groove 31, thereby realizing the transfer of the material and facilitating the complete secondary rolling of the material.

[0044] Two symmetrically arranged inclined rods 46 are fixedly mounted on the lower surface of the rotating cylinder 3. When the rotating cylinder 3 rotates, in addition to secondary rolling and stabbing of the material, the material can also be guided into the second shaft rod 51 through the rotation of the inclined rod 46, so as to facilitate lifting of the material.

[0045] In addition, the present invention also discloses a cosmetic plant essential oil extraction device, the specific steps of which are as follows:

[0046] S1. Set up the tank 1: control the pressure head 16 to move upward through the hydraulic cylinder 17, drive the rotating cylinder 3 to rotate a specified angle through the first motor 18 so that the filter baffle 33 completely blocks the feed trough 31 to prevent the material from falling directly into the feed trough 31, and connect the water inlet 15 to the water source;

[0047] S2, filling materials: filling materials into the tank body 1 through the material port 11, first spreading the materials on the upper surface of the rotating cylinder 3, and when filling materials subsequently, the materials are continuously compacted by controlling the pressure head 16 until the materials reach the required pressing height;

[0048] S3, squeezing materials: controlling the hydraulic cylinder 17 to apply a specified pressure to the pressure head 16 to squeeze the materials to obtain the squeezed extract, controlling the rotating cylinder 3 to rotate a specified angle, so that the feed slot 31 and the filter baffle 33 are staggered, controlling the hydraulic cylinder 17 to reciprocate and vibrate the materials, and at the same time driving the push plate 53 to rotate through the second motor 5, introducing the materials through the feed slot 31 to the bottom of the rotating cylinder 3, performing secondary rolling on the materials through the filter cartridge 112, and puncturing the oil sac of the materials with the needle 115, and further collecting the extracts, and the extracts and water enter the collection barrel 12 through the filter plate 110;

[0049] S4, separation of extract: the density of the extract is lower than that of water and floats on the water. The water is discharged by controlling the second valve 14 to obtain a pure extract;

[0050] S5. Clean the tank body 1: close the first valve 13, take out the material above the rotating cylinder 3 through the material port 11, inject water into the tank body 1 through the water inlet 15, control the rotating cylinder 3 to rotate so that the water flow will flush the material attached to the feed trough 31 and control the water to cover the rotating cylinder 3, control the filter baffle 33 to block the feed trough 31, start the second motor 5, and rotate the screw blade 52 to guide the material below the rotating cylinder 3 out of the rotating cylinder 3 and facilitate its removal from the tank body 1.

[0051] The specific working principle and use method of the present invention are explained in detail below: when in use, the first motor 18 drives the rotating cylinder 3 to rotate so that the filter baffle 33 blocks the feed trough 31 to prevent the material from falling directly into the feed trough 31, and the hydraulic cylinder 17 drives the pressure head 16 to move upward, and the material is poured into the tank body 1 through the material port 11, and the water inlet 15 is connected to the water source, and the material is squeezed by moving the pressure head 16 downward. After the squeezing is completed, the feed trough 31 is opened, and the hydraulic cylinder 17 is controlled to reciprocate and vibrate and beat the material, and the material and the extract are introduced into the bottom of the rotating cylinder 3 through the feed trough 31. The rotating cylinder 3 is driven to rotate by the first motor 18. At this time, the filter press 112 performs secondary rolling on the material. When the gear 4 is rotated, the gear 4 is driven to rotate through the tooth groove 39, and the gear 4 is driven to rotate the helical teeth 41 arranged on the surface thereof, so as to push the lever assembly 43 to move. Under the action of the pull rope 42 and the tension spring 44, the slider 37 drives the pressing block 114 to vibrate up and down. It should be noted that the slider 37 is slidably connected to the inner wall of the box body 113, so the slider 37 keeps horizontal movement, and the pressing block 114 can be moved up and down through the sliding connection relationship between the connecting rod 38 and the inclined surface 118, so that the pricking needle 115 punctures the oil bag of the material, and cooperates with the filter cartridge 112 to further extract the essential oil in the material, thereby improving the extraction effect and avoiding waste. The extracted essential oil is flushed by the water flow through the filter plate 110 into the collection box, which is convenient for subsequent use.

[0052] It is further explained that the above-mentioned fixed connection should be understood in a broad sense unless otherwise clearly specified and limited. For example, it can be welding, gluing, or one-piece molding, etc., which are conventional means well known to those skilled in the art.

[0053] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A cosmetic plant essential oil extraction device, comprising a tank body (1) and a mounting frame, Features: The mounting frame comprises a bottom frame (22) and a top frame (21), the bottom frame (22) and the top frame (21) are fixedly connected, the tank body (1) is fixedly mounted on the bottom frame (22), the top of the tank body (1) is open, a material port (11) is provided on the tank body (1), the bottom of the tank body (1) is connected to a collecting bucket (12) via a material discharge pipe, a first valve (13) is provided on the material discharge pipe, an outer wall of the collecting bucket (12) is fixedly connected to the bottom frame (22), a second valve (14) is provided at the outlet of the collecting bucket (12), a water inlet (15) is provided on the outer wall of the tank body (1), a pressure head (16) is provided inside the tank body (1), and the pressure head (16) is driven by a first driving mechanism connected to the top frame (21); The first driving mechanism comprises two symmetrical hydraulic cylinders (17) and a first motor (18), the two hydraulic cylinders (17) and the first motor (18) are fixedly mounted on the top frame (21), the upper surface of the pressure head (16) is rotatably connected to a connecting plate (19), the telescopic end of the hydraulic cylinder (17) is hinged on the connecting plate (19), and the pressure head (16) is sleeved on the output shaft of the first motor (18); The tank body (1) is provided with a rotating cylinder (3), a filter plate (110) is fixedly mounted below the rotating cylinder (3) and on the inner wall of the tank body (1), the outer wall of the rotating cylinder (3) is provided with evenly distributed feed grooves (31), the annular wall of the rotating cylinder (3) is provided with an annular groove (32), a filter baffle (33) corresponding to the feed groove (31) is provided on the inner annular wall of the tank body (1), and two second pressing mechanisms are provided at the bottom of the rotating cylinder (3), the second pressing mechanisms comprising a groove (111), a filter plate (33) provided in the groove (112), and a filter plate (33) provided in the groove (113). 1) and a puncture mechanism disposed in the filter press cartridge (112), the puncture mechanism comprising a box body (113), a pressing block (114) and a plurality of puncture needles (115) mounted on the lower surface of the pressing block (114), a shaft rod (116) being fixedly mounted in the groove (111), the shaft rod (116) and the box body (113) forming an integrated structure, the filter press cartridge (112) being rotatably mounted on the shaft rod (116), a movable groove (117) being provided in the box body (113), and the pressing block (114) being inserted in the movable groove (117); Two sliders (37) are horizontally slidably connected to the inner wall of the box body (113); a connecting rod (38) of an L-shaped structure is fixedly installed at the bottom of each of the two sliders (37); two inclined surfaces (118) are arranged on the upper surface of the pressing block (114); the two connecting rods (38) are respectively slidably connected to the two inclined surfaces (118); and the two sliders (37) are respectively driven by two sets of transmission mechanisms; The transmission mechanism comprises a tooth groove (39), a gear (4), a plurality of triangular-shaped helical teeth (41) mounted on one side of the gear (4), a pull rope (42) and a lever assembly (43); the tooth groove (39) is arranged on the side wall of the filter press cylinder (112); the gear (4) is rotatably arranged in the groove (111); the tooth groove (39) meshes with the gear (4); a slide groove (119) is arranged on the side wall of the groove (111); one end of the slide groove (119) passes through the inner wall of the wire groove (36); one end of the lever assembly (43) passes through the slide groove (119); two ends of the pull rope (42) are respectively connected to the lever assembly (43) and the slider (37); and two sliders (37) in the same box body (113) are connected via a tension spring (44) arranged in the box body (113).

2. A cosmetic plant essential oil extraction device according to claim 1, Features: A convex plate (34) with an arc structure is fixedly mounted on the upper surface of the rotating cylinder (3) and located between any two feed grooves (31); a convex rod (35) is fixedly mounted on the upper surface of any convex plate (34) and located in the middle thereof; the convex rod (35) is driven by a pressure head (16) slidably connected thereto.

3. A cosmetic plant essential oil extraction device according to claim 1, Features: The rotating cylinder (3) is provided with an L-shaped wire groove (36) corresponding to the second pressing mechanism. Two wire grooves (36) corresponding to the second pressing mechanism are provided. The two wire grooves (36) are symmetrical to each other. The ends of the two wire grooves (36) that are close to each other respectively pass through the two ends of the shaft rod (116) and are connected to the box body (113).

4. A cosmetic plant essential oil extraction device according to claim 1, Features: The rotating cylinder (3) is provided with a through slot (45), a second motor (5) is fixedly arranged on the upper surface of the collecting barrel (12), a second shaft (51) is fixedly mounted on the output shaft of the second motor (5), a screw blade (52) is arranged on the second shaft (51) and is located in the through slot (45), and one end of the second shaft (51) extends out of the through slot (45) and is fixedly mounted with a push plate (53) with an arc structure.

5. A cosmetic plant essential oil extraction device according to claim 1, Features: Two symmetrically arranged oblique rods (46) are fixedly mounted on the lower surface of the rotating cylinder (3).

6. A method for extracting essential oil from cosmetic plants, using the device for extracting essential oil from cosmetic plants as claimed in claim 4. Features: The following steps are involved: S1. Setting the tank body (1): controlling the pressure head (16) to move upward by means of a hydraulic cylinder (17), driving the rotating cylinder (3) to rotate by a specified angle by means of a first motor (18) so that the filter baffle (33) completely blocks the feed trough (31) to prevent the material from directly falling into the feed trough (31), and connecting the water inlet (15) to a water source; S2. Filling the material: filling the material into the tank body (1) through the material inlet (11), first spreading the material over the upper surface of the rotating cylinder (3), and then, when filling the material, continuously compacting the material by controlling the pressure head (16) until the material reaches the required pressing height; S3, squeezing the material: controlling the hydraulic cylinder (17) to apply a specified pressure to the pressure head (16) to squeeze the material to obtain a squeezed extract, controlling the rotating cylinder (3) to rotate at a specified angle so that the feed trough (31) and the filter baffle (33) are staggered, controlling the hydraulic cylinder (17) to reciprocate and vibrate the material, and at the same time driving the push plate (53) to rotate through the second motor (5), so that the material is introduced into the bottom of the rotating cylinder (3) through the feed trough (31), and the material is subjected to secondary rolling by the filter cartridge (112), and the oil sac of the material is punctured by the needle (115), and the extract is further collected, and the extract and water enter the collection barrel (12) through the filter hole plate (110); S4, separation of extract: the density of the extract is lower than that of water and floats on the water. The water is discharged by controlling the second valve (14) to obtain a pure extract; S5, cleaning the tank body (1): the first valve (13) is closed, the material above the rotating cylinder (3) is taken out through the material inlet (11), water is injected into the tank body (1) through the water inlet (15), the rotating cylinder (3) is controlled to rotate so that the water flow washes down the material attached to the feed trough (31) and controls the water to cover the rotating cylinder (3), the filter baffle (33) is controlled to block the feed trough (31), the second motor (5) is started, and the material below the rotating cylinder (3) is guided out of the rotating cylinder (3) through the rotation of the screw blade (52) so as to be easily taken out of the tank body (1).

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