Rose essential oil distillation pressure self-control and aroma component retention device

Abstract

The invention discloses a rose essential oil distillation pressure self-control and aroma component retaining device, and belongs to the technical field of plant essential oil processing and extracting devices.The rose essential oil distillation pressure self-control and aroma component retaining device comprises a distillation control mechanism, the distillation control mechanism comprises a first box internally provided with a heat conduction plate, and a driving motor is mounted at the top of the first box; an output shaft on the driving motor penetrates through the first box body and extends to the reciprocating lead screw, the reciprocating lead screw and the first telescopic rod are fixedly connected through a coupler, and a cutting knife matched with the first telescopic rod is detachably installed on the outer wall of the movable end of the first telescopic rod. A first sliding block is arranged on the reciprocating lead screw in a spiral transmission mode, and the two sides of the extending end of the first sliding block are connected with the pressing plates on the inner wall of the first box body through first supports. The technical problem that the distillation effect of the rose essential oil is affected due to the fact that a distillation mechanism achieves the temperature and pressure control effect through a single heater, more energy is consumed, and the temperature and the pressure cannot be accurately controlled can be solved.

Description

Technical Field

[0001] This invention belongs to the technical field of plant essential oil processing and extraction equipment, specifically relating to a device for automatic control of distillation pressure and preservation of aroma components in rose essential oil. Background Technology

[0002] Rose essential oil is a volatile essential oil extracted from fresh rose petals. It is known as the "Queen of Essential Oils" because it takes about five tons of flowers to extract just two pounds of the finished product.

[0003] The composition of rose essential oil is affected by the extraction method and processing conditions during processing. Common processing methods include steam distillation, solvent extraction, and enfleurage.

[0004] During steam distillation, the volatile components of rose petals are evaporated, forming an oil-water mixture. The essential oil is then obtained through steps such as separating the oil layer and removing water. During this process, the composition of the essential oil may change due to heating conditions: for example, certain components such as citronellol, geraniol, and nerol may be generated through fermentation or chemical reactions. Simultaneously, if oxidation occurs, the acid value of the essential oil may increase, affecting its quality.

[0005] The distillation of rose essential oil requires precise temperature and pressure control within a specific range to evaporate the volatile compounds. After most of these volatile compounds have evaporated, the oil needs to be pulverized, and then the pressure and temperature are increased to extract the remaining essential oil. Existing distillation facilities often rely on a single heater for temperature and pressure control, which is energy-intensive and lacks precise temperature and pressure control, thus affecting the distillation results and reducing product quality. Summary of the Invention

[0006] The purpose of this invention is to provide a device for automatically controlling the distillation pressure and preserving the aroma components of rose essential oil, in order to solve the technical problem that distillation mechanisms often rely on a single heater to achieve temperature and pressure control, which consumes a lot of energy and cannot accurately control the temperature and pressure, thereby affecting the distillation effect of rose essential oil and reducing product quality.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: A precise metering, interconnected, replenishment-type film raw material conveying system includes: A conveyor line, which is mounted on a frame and extends in a predetermined direction, for carrying and conveying raw materials; The linkage conveying mechanism includes a U-shaped plate placed on a frame. Lifting plates are installed on both sides of the bottom end of the U-shaped plate via first springs. First pressure rollers are installed on the lifting plates via rotatable connection. A strip groove is opened at one end of the lifting plate along the height direction of the U-shaped plate. One end of the lifting plate is connected to a first slider via a first swing rod, and the other end is connected to a second slider via a second swing rod. One end of the first slider is fixedly connected to the discharge pipe at the bottom of the storage box by a second spring, and a push rod is fixedly installed on the first slider. The push rod has a through hole adapted to the discharge pipe, and the outer wall of the discharge pipe is connected to a movable port along the direction of movement of the push rod.

[0008] Furthermore, both ends of the first swing rod are mounted on the lifting plate and the first slider by means of rotational connection. The bottom of the discharge pipe is fixed to the housing by means of threaded connection. The first motor is fixedly connected to the outer wall of the housing by means of detachable installation. The output shaft of the first motor extends to the movable shaft inside the housing. One end of the movable shaft is fixedly connected to the elastic hose placed at the bottom of the discharge pipe. Below the elastic hose are guide plates that are equidistantly distributed on the inner wall of the housing.

[0009] Furthermore, both ends of the storage box are fixed to the frame by support rods, and a cam is fixedly connected to the outer wall of the output shaft of the first motor. The outer wall of the cam moves against and fits against the panel. The panel and the storage box are connected by a telescopic rod, and one side of the movable end of the telescopic rod passes through the discharge pipe and extends to the baffle plate.

[0010] Furthermore, the baffle plate is connected to a guide groove along the height direction of the inner wall of the discharge pipe, and the connection between one end of the telescopic rod and the discharge pipe is a telescopic sealing structure design.

[0011] Furthermore, both ends of the second swing rod are mounted on the second slider and the lifting plate by means of rotational connection. One end of the second slider is fixed to the movable plate. The movable plate is connected to the second pressure roller by means of rotational connection, and the protrusion on the movable plate is connected to the T-slot along the length direction of the fixed frame.

[0012] Furthermore, it also includes a cleaning and separation mechanism, which includes a processing box. The processing box and the conveyor line are connected by a screw conveyor. The bottom of the screw conveyor is installed in a first collection box by a fixing rod. A second motor is installed on the processing box. The output shaft of the second motor extends to a first rotating wheel on the side wall of the processing box. The first rotating wheel and the second rotating wheel are connected by a first conveyor belt. A bearing plate is detachably installed on the outer wall of the first conveyor belt.

[0013] Furthermore, the second motor output shaft and the third rotating wheel are connected by a second conveyor belt. One end of the third rotating wheel passes through the processing box and extends to the side wall of the other end of the processing box. The third rotating wheel and the fourth rotating wheel are connected by a third conveyor belt. A scraper is detachably installed on the outer wall of the third conveyor belt, and a bending plate is provided below the third conveyor belt on the side wall of the processing box.

[0014] Furthermore, a guide groove is provided at the corner of the bending plate, and a second collection box and a third collection box corresponding to the scraper and the bearing plate are respectively installed at both ends of the outer wall of the processing box. An inclined plate is fixedly installed on the side wall of the processing box near the bearing plate.

[0015] Furthermore, a guide tube is installed at the discharge port of the screw conveyor. One end of the guide tube passes through the processing box and extends to the vertical ends of the scraper and the bending plate. The upper and lower ends of the guide tube are respectively provided with a first rotating shaft and a second rotating shaft. The first rotating shaft and the second rotating shaft are connected by a fourth conveyor belt. Rotating plates are fixedly installed on the outer walls of the first rotating shaft and the second rotating shaft. A flow cavity is formed between the rotating plates and placed in the inner wall of the guide tube.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: (1) In this invention, during the initial distillation of roses, the heater transfers heat to the heat-conducting plate during the heating process, and the distillation of roses is achieved by heating and pressurizing. In order to better control the internal temperature and pressure of the first chamber, a hinged baffle is provided at the outlet, which, together with a torsion spring, allows a certain amount of pressure and heat to be discharged by rotating the baffle outward when the internal pressure of the first chamber is too high, thereby effectively controlling the internal temperature and pressure of the first chamber. During the secondary distillation of roses, the drive motor starts and drives the reciprocating screw and the first telescopic rod to rotate. The first telescopic rod can carry... The moving cutter crushes the rose petals. Furthermore, under the action of the screw drive, as the first support moves the pressure plate downwards, it can cause the moving plate to close the gas outlet, creating a closed environment. Simultaneously, the temperature inside the first chamber increases through gas work. As the second support moves downwards, in conjunction with the bearing, it can cause the movable end on the first telescopic rod to move downwards synchronously, allowing the cutter to crush and cut at different heights. This gas work increases the temperature and pressure inside the first chamber, effectively improving the distillation effect and product quality, ensuring the stability of the device. The design is reasonable and the functionality is strong.

[0017] (2) In this invention, the distilled oil-water mixture enters the first cavity of the second chamber through the condenser. Due to the density difference between the oil and water, the rose essential oil separates from the water and is located in the upper region of the first cavity. Under the action of the driver, the drive wheels rotate and cooperate with the oil suction belt to make the entire transmission mechanism circulate. The oil suction belt rotates counterclockwise. The rose essential oil can be scraped into the second chamber by the scraper on the second telescopic rod. During the rotation of the second adjusting wheel, under the transmission action of the conveyor belt, it can drive the rotating shaft to rotate. During the rotation of the rotating shaft, the second slider connected to the second swing rod swings. The angle of the second slider is consistent with the angle of the oil receiving plate. This allows the fixed end of the second telescopic rod to move back and forth on the oil receiving plate during the back-and-forth movement. By pushing in the opposite direction, the scraper can effectively rub the oil on the oil suction belt, thus facilitating the collection of rose essential oil. In addition, the rollers connected in the groove on the oil receiving plate can reduce the friction at the bottom of the second telescopic rod during movement, improving the service life of the device. The movable end of the second telescopic rod is set by a compression spring, thereby preventing the scraper from affecting the normal transmission of the oil suction belt during lifting and ensuring the stability of the device.

[0018] (3) In this invention, during the use of the oil and the drop in oil level, the two ends of the bidirectional electric push rod move synchronously. The fixed end of the bidirectional telescopic rod drives the oil suction belt to move downward. Under the rotational connection of the first swing rod, the tension wheel can be driven to move inward, thereby ensuring the free tension of the oil suction belt transmission. In addition, when the bidirectional telescopic rod moves downward, the movable parts at both ends are provided with trapezoidal grooves. Through the movable contact with the contact block, the contact area between the oil suction belt and the oil can be expanded. In this way, the contact amount between the oil suction belt and the oil is increased by expanding the contact area. Moreover, the other end of the bidirectional electric push rod can drive the first adjusting wheel to move upward. In this way, the tilt angle between the first adjusting wheel and the second adjusting wheel will increase. In this way, more oil on the oil suction belt will fall into the second cavity for collection more quickly under the action of gravity, improving the collection effect of the device on the oil and making it highly applicable. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of the rose essential oil distillation pressure self-control and aroma component retention device of the present invention; Figure 2This is a front view of the rose essential oil distillation pressure self-control and aroma component retention device of the present invention; Figure 3 This is a schematic diagram of the interior of the first housing of the present invention; Figure 4 This is the present invention. Figure 3 A front view of the direction; Figure 5 This is a schematic diagram of the interior of the second housing of the present invention; Figure 6 This is a schematic diagram showing the connection between the rotating wheel and the second slider of the present invention; Figure 7 This is an internal schematic diagram of the second telescopic rod of the present invention; Figure 8 This is a schematic diagram of the oil receiving plate of the present invention.

[0021] Reference numerals: 1. Distillation control mechanism; 2. Heat-conducting plate; 3. First chamber; 4. Drive motor; 5. Reciprocating screw; 6. First telescopic rod; 7. Cutting blade; 8. First slider; 9. Pressure plate; 10. First support; 11. Second support; 12. Bearing; 13. Heater; 14. Moving plate; 15. Baffle plate; 16. Oil-water separation mechanism; 17. Second chamber; 18. Condenser; 19. Partition; 20. First cavity; 21. Second cavity; 22. Drive wheel; 23. Bidirectional telescopic rod ; 24. Bidirectional electric push rod; 25. Oil suction belt; 26. First adjusting wheel; 27. Second adjusting wheel; 28. Transition wheel; 29. ​​First swing rod; 30. Tensioning wheel; 31. Push block; 32. Trapezoidal groove; 33. Abutting block; 34. Oil receiving plate; 35. Fixing block; 36. Roller; 37. U-shaped plate; 38. Second telescopic rod; 39. Scraper; 40. Housing; 41. Rotating shaft; 42. Conveyor belt; 43. Compression spring; 44. Rotating wheel; 45. Second slider; 46. Second swing rod. Detailed Implementation

[0022] 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.

[0023] Reference manual attached Figure 1 - Appendix Figure 8As shown, the rose essential oil distillation pressure self-control and aroma component retention device includes: a distillation control mechanism 1, the distillation control mechanism 1 includes a first box 3 with a heat conduction plate 2 inside, a drive motor 4 is installed on the top of the first box 3, the output shaft of the drive motor 4 passes through the first box 3 and extends to the reciprocating screw 5, the reciprocating screw 5 and the first telescopic rod 6 are fixedly connected by a coupling, and a cutting blade 7 adapted to it is detachably installed on the outer wall of the movable end of the first telescopic rod 6; The reciprocating screw 5 has a first slider 8 for screw drive. The two sides of the extension end of the first slider 8 and the pressure plate 9 on the inner wall of the first housing 3 are connected by the first bracket 10. The bottom of the first slider 8 is equipped with a bearing 12 placed on the outer wall of the movable end of the first telescopic rod 6 through the second bracket 11. The side wall edge of the bearing 12 is provided with an annular groove that is connected to the movable end of the first telescopic rod 6. The annular groove is recessed inward.

[0024] The bearing 12 on the second bracket 11, which is connected to the first telescopic rod 6, allows the first telescopic rod 12 to rotate freely and also allows the movable part on the first telescopic rod 6 to move freely up and down. The movable part on the first telescopic rod 6 has a protrusion, and both ends of the protrusion have concave grooves that connect to the fixed end on the first telescopic rod 6. This allows the movable part on the first telescopic rod 6 to rotate freely and maintain normal up and down movement. The above-mentioned arrangement of the protrusion and the concave groove is a conventional technical means for those skilled in the art. Although there are no corresponding drawings, it does not affect the effective implementation of the technical solution of the present invention.

[0025] During the initial distillation of roses, heater 13 transfers heat to heat-conducting plate 2, achieving distillation through heating and pressurization. To better control the internal temperature and pressure of the first chamber 3, a hinged baffle 15 is installed at the outlet, working in conjunction with a torsion spring. When the internal pressure of the first chamber 3 becomes too high, the baffle 15 rotates outward to release a certain amount of pressure and heat, thus effectively controlling the internal temperature and pressure of the first chamber 3. During the secondary distillation of roses, drive motor 4 starts, driving the reciprocating screw 5 and the first telescopic rod 6 to rotate. The first telescopic rod 6 can drive the cutting blade. The roses are crushed by the first support 10, which, under the action of the screw drive, moves the pressure plate 9 downwards and causes the moving plate 14 to close the gas outlet, forming a closed environment. At the same time, the temperature inside the first chamber 3 is increased by the gas doing work. When the second support 11 moves downwards, it works with the bearing 12 to move the movable end on the first telescopic rod 6 downwards synchronously, so that the cutting blade 7 can crush and cut at different heights. In this way, the temperature and pressure inside the first chamber 3 are increased by the gas doing work, thereby effectively improving the distillation effect and product quality, ensuring the stability of the device, and making the design reasonable and the functionality strong.

[0026] A heater 13 fixed on a crossbeam is provided between the heat-conducting plate 2 and the bottom of the inner wall of the first box 3, and the movable end of the first telescopic rod 6 abuts against the top of the heat-conducting plate 2. The center of the pressure plate 9 has a movable opening that connects to the output shaft of the drive motor 4, and a sealing gasket is installed at the movable opening by adhesive fixation.

[0027] Specifically, one side of the extension end of the first slider 8 extends to the inner wall of the first housing 3, and the other side is fixed to the movable plate 14. One end of the movable plate 14 movably abuts against the air outlet of the first housing 3. The outer wall of the air outlet is rotatably connected to the baffle plate 15 by a hinge, and both ends of the hinge are provided with rolling grooves connected to the side plate. One end of the rolling groove is equipped with a torsion spring adapted to the hinge.

[0028] The rose essential oil distillation pressure control and aroma component retention device also includes an oil-water separation mechanism 16. The oil-water separation mechanism 16 includes a second chamber 17. The second chamber 17 and the first chamber 3 are connected by a downwardly inclined condenser pipe 18. The inner wall of the second chamber 17 is integrally formed with a partition 19. A first cavity 20 and a second cavity 21 are formed between the partition 19 and the side wall of the second chamber 17, respectively.

[0029] Both ends of the inner wall of the second housing 17 are provided with drive wheels 22 connected to the driver. One end of the drive wheel 22 is fixed on the movable part of the bidirectional telescopic rod 23, and the fixed end at the center of the bidirectional telescopic rod 23 is installed on the bidirectional electric push rod 24. One end of the oil suction belt 25 on the drive wheel 22 passes through the first adjusting wheel 26 and the second adjusting wheel 27 and extends to the transition wheel 28. The oil suction belt 25 on the transition wheel 28 extends to the drive wheel 22 and forms a cyclic transmission. One end of the bidirectional electric push rod 24 is connected to the tensioning wheel 30 through the first swing rod 29, and the other end is connected to the first adjusting wheel 26 through the push block 31.

[0030] The wrap angle between the drive pulley 22, the first adjusting pulley 26, and the transmission pulley is greater than 120 degrees. This design relationship is to avoid insufficient contact area, reduced friction, slippage, increased energy loss, and localized wear of the belt, thereby ensuring the stable operation of the transmission system.

[0031] The bottom of the movable part on the bidirectional telescopic rod 23 is provided with a trapezoidal groove 32, and below the trapezoidal groove 32 is an abutment block 33 placed inside the first cavity 20. The first swing rod 29 is mounted on the bidirectional electric push rod 24 and the tension wheel 30 by means of rotational connection on both sides. The tension wheel 30 is connected to a limit groove along the length of the inner wall of the second box 17, and the outer wall of the tension wheel 30 abuts against the oil suction belt 25. One end of the second adjusting wheel 27 and the transition wheel 28 are both mounted on the inner wall of the second box 17 by a retaining ring, and below the transition wheel 28 is an oil receiving plate 34 fixed on the side wall of the second box 17. Both ends of the oil receiving plate 34 are equipped with fixing blocks 35, and the discharge port at one end of the oil receiving plate 34 extends into the second cavity 21.

[0032] Specifically, a strip-shaped groove is provided on the fixed block 35 along its length, and a roller 36 is movably connected in the strip-shaped groove. The top of the roller 36 movably abuts against the U-shaped plate 37. Both sides of the bottom end of the U-shaped plate 37 are provided with sliding grooves that are connected to the fixed block 35. The top of the U-shaped plate 37 is connected to a scraper 39 placed at the bottom of the oil suction belt 25 through a second telescopic rod 38. The central shaft on the second adjusting wheel 27 and the rotating shaft 41 inside the housing 40 are connected by a conveyor belt 42.

[0033] The bottom of the movable part on the second telescopic rod 38 is provided with a compression spring 43 that is compatible with it, and the housing 40 and the oil receiving plate 34 are arranged in the same direction. One end of the rotating shaft 41 is fixed on the rotating wheel 44. The extension end on the rotating wheel 44 and the second slider 45 in the positioning groove are connected by the second swing rod 46. One end of the second slider 45 is connected to the fixed end of the second telescopic rod 38.

[0034] During the use of the oil and the decrease in oil level, the two ends of the bidirectional electric push rod 24 move synchronously, and the fixed end of the bidirectional telescopic rod 23 drives the oil suction belt 25 to move downward. Under the rotational connection of the first swing rod 29, the tension wheel 30 can be driven to move inward, thereby ensuring the free tension of the oil suction belt 25 during transmission. In addition, when the bidirectional telescopic rod 23 moves downward, the movable parts at both ends are provided with trapezoidal grooves 32. Through the movable contact with the contact block 33, the contact surface between the oil suction belt 25 and the oil can be expanded. This increases the amount of contact between the oil suction belt 25 and the oil by expanding the contact area. Moreover, the other end of the bidirectional electric push rod 24 can drive the first adjusting wheel 26 to move upward. This will increase the tilt angle between the first adjusting wheel 26 and the second adjusting wheel 27. As a result, more oil on the oil suction belt 25 will fall into the second cavity 21 for collection more quickly under the action of gravity, improving the oil collection effect of the device and making it highly applicable.

[0035] In addition, both ends of the second swing rod 46 are mounted on the rotating wheel 44 and the second slider 45 by means of rotational connection. The housing 40 has a through hole for connection with the conveyor belt 42, and the housing 40 is connected to the side wall of the second box 17 by means of locking and fixing by positioning pin.

[0036] The above are merely preferred embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

[0037] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to specific implementations. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for automatically controlling the distillation pressure of rose essential oil and preserving its aroma components, characterized in that, include: Distillation control mechanism (1), the distillation control mechanism (1) includes a first box (3) with a heat-conducting plate (2) inside, a drive motor (4) is installed on the top of the first box (3), the output shaft of the drive motor (4) passes through the first box (3) and extends to the reciprocating screw (5), the reciprocating screw (5) and the first telescopic rod (6) are fixedly connected by a coupling, and a cutting blade (7) adapted to it is detachably installed on the outer wall of the movable end of the first telescopic rod (6). The reciprocating screw (5) has a first slider (8) that is screwed on. The two sides of the extension end of the first slider (8) and the pressure plate (9) on the inner wall of the first housing (3) are connected by a first bracket (10). The bottom of the first slider (8) is equipped with a bearing (12) placed on the outer wall of the movable end of the first telescopic rod (6) through a second bracket (11). The side wall edge of the bearing (12) is provided with an annular groove that is connected to the movable end of the first telescopic rod (6). The annular groove is recessed inward.

2. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 1, characterized in that, A heater (13) fixed on a crossbeam is provided between the bottom of the inner wall of the heat-conducting plate (2) and the first box (3), and the movable end of the first telescopic rod (6) abuts against the top of the heat-conducting plate (2). The center of the pressure plate (9) is provided with a movable opening connected to the output shaft of the drive motor (4), and a sealing gasket is installed at the movable opening by adhesive fixation.

3. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 2, characterized in that, One side of the extension end of the first slider (8) extends to the inner wall of the first housing (3), and the other side is fixed on the movable plate (14). One end of the movable plate (14) movably abuts against the air outlet of the first housing (3). The outer wall of the air outlet is rotatably connected to a baffle plate (15) via a hinge. Both ends of the hinge are provided with rolling grooves connected to the side plate. One end of the rolling groove is equipped with a torsion spring adapted to the hinge.

4. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 1, characterized in that, It also includes an oil-water separation mechanism (16), which includes a second housing (17). The second housing (17) and the first housing (3) are connected by a downwardly inclined condenser pipe (18). The inner wall of the second housing (17) is integrally formed with a partition (19). A first cavity (20) and a second cavity (21) are formed between the partition (19) and the side wall of the second housing (17).

5. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 4, characterized in that, The inner walls of the second housing (17) are provided with drive wheels (22) connected to the driver at both ends. One end of the drive wheel (22) is fixed on the movable part of the bidirectional telescopic rod (23), and the fixed end at the center of the bidirectional telescopic rod (23) is installed on the bidirectional electric push rod (24). One end of the oil suction belt (25) on the drive wheel (22) passes through the first adjusting wheel (26) and the second adjusting wheel (27) and extends to the transition wheel (28). The oil suction belt (25) on the transition wheel (28) extends to the drive wheel (22) and forms a cyclic transmission. One end of the bidirectional electric push rod (24) is connected to the tension wheel (30) through the first swing rod (29), and the other end is connected to the first adjusting wheel (26) through the push block (31).

6. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 5, characterized in that, The bottom of the movable part of the bidirectional telescopic rod (23) is provided with a trapezoidal groove (32), and a contact block (33) is provided below the trapezoidal groove (32) and placed inside the first cavity (20). The first swing rod (29) is mounted on the bidirectional electric push rod (24) and the tension wheel (30) by means of rotational connection. The tension wheel (30) is connected to the limit groove along the length of the inner wall of the second box (17), and the outer wall of the tension wheel (30) is in contact with the oil absorption belt (25). One end of the second adjusting wheel (27) and the transition wheel (28) are both installed on the inner wall of the second box (17) by a retaining ring. Below the transition wheel (28) is an oil receiving plate (34) fixed on the side wall of the second box (17). Both ends of the oil receiving plate (34) are equipped with fixing blocks (35), and the discharge port of one end of the oil receiving plate (34) extends into the second cavity (21).

7. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 6, characterized in that, The fixed block (35) has a strip groove along its length. A roller (36) is movably connected in the strip groove. The top of the roller (36) movably abuts against the U-shaped plate (37). Both sides of the bottom end of the U-shaped plate (37) are provided with sliding grooves connected to the fixed block (35). The top of the U-shaped plate (37) is connected to a scraper (39) placed at the bottom of the oil suction belt (25) via a second telescopic rod (38). The central shaft on the second adjusting wheel (27) and the rotating shaft (41) inside the housing (40) are connected by a conveyor belt (42).

8. The device for automatically controlling the distillation pressure of rose essential oil and retaining its aroma components according to claim 7, characterized in that, The bottom of the movable part on the second telescopic rod (38) is provided with a compression spring (43) that is compatible with it, and the housing (40) and the oil receiving plate (34) are arranged in the same direction. One end of the rotating shaft (41) is fixed on the rotating wheel (44). The extension end on the rotating wheel (44) and the second slider (45) in the positioning groove are connected by the second swing rod (46). One end of the second slider (45) is connected to the fixed end of the second telescopic rod (38).

9. The device for automatically controlling the distillation pressure and retaining aroma components of rose essential oil according to claim 8, characterized in that, The second swing rod (46) is mounted on the rotating wheel (44) and the second slider (45) by means of rotational connection at both ends. The housing (40) is provided with a through hole for connection with the conveyor belt (42), and the housing (40) is connected to the side wall of the second box (17) by means of locking and fixing with a positioning pin.

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