Camellia oil extraction process

Abstract

According to the camellia oil extraction technology, a spiral oil extraction box is connected to the top face of a second-stage oil extraction box, an oil collecting bin is formed in the second-stage oil extraction box, an oil discharging opening is formed in one end of the oil collecting bin, and the other end of the oil discharging opening communicates with the exterior of the second-stage oil extraction box; a sealing door is hinged to the position, located on the outer wall of the second-stage oil pressing box, of the outer side of the oil discharging opening, the end, away from the oil discharging opening, of the bottom of the spiral oil pressing box communicates with the interior of the oil collecting bin, a synchronous driving box is arranged above the position where the second-stage oil pressing box communicates with the spiral oil pressing box, and a solid-liquid separation barrel is rotationally connected to the center of the oil collecting bin. Solid-liquid separation of the camellia oil and the camellia seeds can be automatically achieved, residues of the camellia seeds are automatically collected, and compared with traditional single squeezing, the oil extraction rate of the camellia oil is remarkably increased, and the camellia seeds are more fully utilized.

Description

Technical Field

[0001] The invention relates to the field of camellia oil extraction, in particular to a camellia oil extraction process. Background Art

[0002] Camellia oil, also known as tea oil, camellia seed oil, etc., is a pure natural high-grade edible vegetable oil extracted from the mature seeds of the tea tree. Camellia oil contains a large amount of nutrients, among which the content of unsaturated fatty acids is as high as more than 90%, and the content of oleic acid is as high as about 80%. It can effectively lower cholesterol and prevent cardiovascular diseases. Camellia oil also contains a variety of vitamins, has antioxidant and anti-aging effects, and can protect cells from damage by free radicals.

[0003] Camellia oil is extracted by squeezing camellia fruit. There are many ways to extract camellia oil, including cold pressing, hot pressing and other methods. Among them, the nutrients of camellia oil extracted by cold pressing are best preserved, but the oil yield of cold pressing is low, and the pomace and camellia oil after cold pressing are difficult to separate.

[0004] Therefore, we made improvements and proposed a camellia oil extraction process. Summary of the invention

[0005] The purpose of the present invention is to improve the oil yield of camellia fruit through secondary oil pressing, as the existing cold-pressed camellia oil has a low oil yield and is difficult to separate the camellia oil and oil residue.

[0006] In order to achieve the above-mentioned object of the invention, the present invention provides the following camellia oil extraction process to improve the above-mentioned problems.

[0007] The specific application is as follows:

[0008] A camellia oil extraction process, a device used in the camellia oil extraction process comprises: a secondary oil pressing box connected to a spiral oil pressing box on the top surface, an oil collecting bin is provided inside the secondary oil pressing box, and a solid-liquid separation cylinder is rotatably connected to the center of the oil collecting bin;

[0009] A slag inlet is obliquely opened on one side of the outer wall of the solid-liquid separation cylinder, and a slag scraper is connected to one side of the outer wall of the slag inlet, and the end of the slag scraper is fitted and slid on the inner wall of the oil collection bin;

[0010] The specific processing technology of the camellia oil extraction process comprises the following steps:

[0011] Step 1: Take the cleaned, impurity-removed and shelled camellia seeds and soak them in clean water with a temperature below 5℃-40℃ for ten minutes to lower the temperature of the camellia seeds;

[0012] Step 2: Take out the tea seeds that have been soaked in clean water for a certain period of time, and put them into the spiral oil pressing box when the water content of the tea seeds reaches 5%-8%;

[0013] Step 3: The camellia seeds are crushed by the double interlocking screws to squeeze out the camellia oil contained in the camellia seeds. The pressed camellia seed residue and camellia oil are discharged into the solid-liquid separation cylinder in the oil collection bin under the push of the interlocking screw. The camellia oil and camellia seed residue fall into the solid-liquid separation cylinder. When the solid-liquid separation cylinder rotates, the camellia oil and camellia seeds flow to the bottom surface of the oil collection bin. When the solid-liquid separation cylinder rotates, the camellia oil can be pushed to the oil discharge port due to the inclination of the scraper. The camellia seed residue will enter the secondary pressing area through the residue inlet under the scraping of the scraper. When the camellia seed residue fills the secondary pressing area by 50%-80%, stop feeding the camellia seeds. When the camellia seed residue is completely discharged through the spiral oil pressing box, start the three-stage hydraulic cylinder to perform secondary pressing on the camellia seed residue in the secondary pressing area, completely squeeze out the remaining camellia oil contained in the camellia seeds, and complete the separation of the camellia seed residue and the camellia oil.

[0014] Step 4: After the camellia oil is squeezed, open the sealed door and start the three-stage hydraulic cylinder to push it outward to discharge the camellia seed residue and automatically clean the equipment;

[0015] Step 5: After the equipment is reset, continue to squeeze the camellia seeds.

[0016] The outer wall of the oil pump tube is provided with a sealing door, and the outer wall of the oil pump tube is provided with a sealing door. The outer wall of the oil pump tube is provided with a sealing door, and the end of the bottom of the screw oil press box is connected to the oil collecting bin. The end of the screw oil press box is connected to the oil collecting bin. The upper part of the second oil press box and the screw oil press box are connected. A synchronous drive box is provided above the position where the second oil press box is connected to the synchronous drive box. An oil feeding hopper is provided just below the oil discharge port. A hydraulic bin is provided at the position where the second oil press box is connected to the third hydraulic cylinder. The third hydraulic cylinder is penetrated into the inner side of the hydraulic bin. A cylinder fixing frame is fixed on the end of the inner wall of the oil discharge port, and one side of the cylinder fixing frame is attached to the surface of the synchronous drive box. An oil flow groove is formed between the outer wall of the cylinder fixing frame and the oil discharge port. The synchronous drive box synchronously drives the screw oil press box and the solid-liquid separation cylinder. A third hydraulic cylinder is provided at the center of the end of the second oil press box away from the oil discharge port.

[0017] The output end of the three-stage hydraulic cylinder is connected to a primary pressing plate, an end of the primary pressing plate away from the three-stage hydraulic cylinder is combined with a secondary pressing plate with limited extension, an end of the secondary pressing plate away from the primary pressing plate is combined with a tertiary pressing plate with limited extension, an end of the tertiary pressing plate away from the secondary pressing plate is abutted against the surface of the sealing door, and a secondary pressing area is formed between the primary pressing plate and the secondary pressing plate, between the secondary pressing plate and the tertiary pressing plate, and between the tertiary pressing plate and the sealing door.

[0018] The cam is provided with a toothed sleeve which is adapted to engage the at least one camshaft of the cylinder and to engage with the at least one cam in a manner that is adapted to engage the at least one camshaft of the cylinder.

[0019] As a preferred technical solution of the present application, an oil pressing bin is provided inside the spiral oil pressing box, a feed port is provided on the top of one end of the oil pressing bin close to the oil discharge port, the top of the feed port is located on the top surface of the spiral oil pressing box and is connected to a feed hopper, an oil and slag discharge port is provided on the bottom of one end of the oil pressing bin away from the feed port, the oil and slag discharge port is communicated with the inside of the oil collecting bin, and intermeshing screws are rotatably connected on both sides of the oil pressing bin, one end of the intermeshing screw extends to the inside of a synchronous drive box, and the end of the intermeshing screw located inside the synchronous drive box is connected to a synchronous gear, and the synchronous gears are meshed with each other.

[0020] As a preferred technical solution of the present application, the synchronous drive box includes a T-shaped shell, a synchronous transmission chamber and a power separation chamber are respectively provided on both sides of the interior of the T-shaped shell, a power separation plate is provided between the synchronous transmission chamber and the power separation chamber, the synchronous gear is located inside the synchronous transmission chamber, a drive motor is fixedly connected to one side of the outer wall of the T-shaped shell, the output end of the drive motor is passed through the interior of the power separation chamber, the output end of the drive motor is connected to a driving gear, the end of the central axis of the driving gear away from the drive motor passes through the power separation plate, the end of the central axis of the driving gear passes through the power separation plate and is transmission-connected to the synchronous gear on one side, a transmission shaft is passed through the lower part of the power separation chamber, a transmission gear is fixedly connected to the outer wall of the transmission shaft, a speed change gear is fitted on one side of the transmission gear, and the transmission gear is meshed with the driving gear for transmission.

[0021] As a preferred technical solution of the present application, a movable groove is provided at the center of the position where the power partition plate is connected to the driving gear, symmetrical electromagnetic grooves are provided on both sides of the movable groove, an electromagnetic block is fixedly connected inside the electromagnetic groove, a magnetic disk is slidably connected to one side of the movable groove, the central axis of the driving gear is passed through the inside of the magnetic disk and fixedly connected to the magnetic disk, a circular hole is provided at the center of one end of the central axis of the driving gear passed through the inside of the synchronous transmission warehouse, the outside of the circular hole is set as a square shaft, a square hole is provided at the end of the central axis of the synchronous gear connected to the driving gear transmission, a central positioning shaft is connected at the center of the square hole, the central positioning shaft is slidably passed through the inside of the circular hole, and the square shaft is slidably passed through the inside of the square hole.

[0022] As a preferred technical solution of the present application, a second gear ring is fixed to the outer wall of one end of the solid-liquid separation cylinder away from the oil discharge port, and the second gear ring is meshed with the speed gear for transmission. A sealing ring is fixed to the outer wall of one end of the solid-liquid separation cylinder connected to the second gear ring, and the sealing ring is limited and rotated on the inner wall of the oil collecting bin. An oblique groove is provided at the position where the inner wall of the solid-liquid separation cylinder is connected to the three-stage pressing disk, and the outer wall of the three-stage pressing disk is engaged with the outer wall of the oblique groove, and a wide-mouth silo is formed on the side of the oblique groove close to the oil discharge port, and the outer wall of the three-stage pressing disk slides in contact with the inner surface of the wide-mouth silo.

[0023] As a preferred technical solution of the present application, a combination rod is fixedly connected at the center of one side of the first-stage pressing plate, the second-stage pressing plate and the third-stage pressing plate facing away from the third-stage hydraulic cylinder, a contraction bin is provided inside the combination rod, and an inner wall of the contraction bin is provided with annular arc-shaped limiting grooves distributed equidistantly, a positioning arc angle disc is connected to one end of the combination rod close to the contraction bin, and the positioning arc angle disc and the combination rod slide in contact with the inner surface of the arc-shaped limiting groove, and relative three-stage cutting blocks are fixed on both sides of the first-stage pressing plate, the second-stage pressing plate and the third-stage pressing plate, and the three-stage cutting block fixedly connected to the side of the three-stage pressing plate facing away from the second-stage pressing plate is opposite to the pomace cutting block.

[0024] As a preferred technical solution of the present application, the sealing door is hingedly connected to a double lock plate of the door body at one end away from the hinged position with the secondary oil press box, and symmetrical fixed blocks are fixed to the outer wall of the secondary oil press box near the double lock plate of the door body, and lock plate recesses are formed between the fixed blocks. The double lock plate of the door body is slidably engaged in the inner side of the lock plate recess, and symmetrical secondary lock holes are provided on the upper and lower surfaces of the fixed blocks.

[0025] As a preferred technical solution of the present application, a positioning and rotating cavity is provided inside the end of the double lock plate of the door body away from the sealed door, and through holes are provided on the upper and lower sides of the positioning and rotating cavity, a rotatably connected bent handle is passed through the through hole, and a positioning column is connected to the top of the end of the bent handle located inside the through hole, and the positioning column is limited and rotated inside the positioning and rotating cavity, and a convex clamping block is fixedly connected to the side of the bent handle located outside the through hole, and the convex clamping block abuts against the outer surface of the fixed block, and a through hole is provided in the middle part of the end of the bent handle away from the positioning column, and a secondary locking rod is slidably passed through the through hole, and the end of the secondary locking rod is passed through the inner side of the secondary lock hole.

[0026] Compared with the prior art, the present invention has the following beneficial effects:

[0027] In the scheme of the present application: through the solid-liquid separation cylinder that is rotatably connected in the secondary pressing area, the solid-liquid separation of camellia oil and camellia seeds can be automatically achieved, and the camellia seed residue can be automatically collected. The three-stage hydraulic cylinder is used to drive the first, second, and third pressing plates to perform secondary pressing on them. The remaining camellia oil contained in the camellia seeds can be completely squeezed out. Compared with traditional single pressing, the oil yield of camellia oil is significantly improved, so that the camellia seeds can be more fully utilized.

[0028] 1. The present invention arranges a rotating solid-liquid separation cylinder at the center of the oil collecting bin of the secondary oil pressing box. During the rotation of the solid-liquid separation cylinder, the automatic separation of camellia oil and camellia seed residue can be achieved. When the solid-liquid separation cylinder rotates, the camellia oil flows to the bottom surface of the oil collecting bin and is pushed to the oil discharge port for discharge through the scraper. The camellia seed residue enters the secondary pressing area under the scraping of the scraper. After the pressing is completed, the sealing door is opened and the three-stage hydraulic cylinder is started to push outward, so that the camellia seed residue can be automatically discharged and the equipment is cleaned at the same time. The whole process realizes the integration of solid-liquid separation and automatic slag discharge, reduces equipment investment and manual intervention, and improves production efficiency.

[0029] 2. The present invention provides an oil feeding hopper at the position where the secondary oil pressing box is connected to the synchronous driving box, which is located just below the oil discharge port, and can effectively guide the oil discharged from the spiral oil pressing box into the oil collecting bin to avoid spilling of the oil. At the same time, a cylinder fixing frame is fixed at the end of the inner wall of the oil discharge port, and an oil flow groove is formed between the cylinder fixing frame and the oil discharge port. The oil discharge groove at the sealing door and other structures are combined to optimize the flow path of the oil, making the oil collection and transportation smoother, reducing the oil residue, and further improving the collection efficiency of camellia oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 A schematic diagram of the overall structure of the camellia oil extraction process provided by the present invention;

[0031] Figure 2 for Figure 1 The structural schematic diagram of the middle section of the secondary oil press box shown;

[0032] Figure 3 for Figure 2 The schematic diagram of the structural breakdown inside the secondary oil press box shown;

[0033] Figure 4 for Figure 2 The schematic diagram of the structure inside the spiral oil press box shown;

[0034] Figure 5 for Figure 4 The schematic diagram of the structure of the synchronous drive box is shown in an exploded and enlarged cross-sectional view;

[0035] Figure 6 for Figure 3 The schematic diagram of the structure of the solid-liquid separation cylinder and the secondary oil pressing box is shown;

[0036] Figure 7 for Figure 6 The structure of the solid-liquid separation cylinder is shown as an exploded and enlarged schematic diagram of the cross-section of the middle part;

[0037] Figure 8 for Figure 3 The enlarged cross-sectional view of the structure of the solid-liquid separation cylinder and the synchronous drive box transmission position shown;

[0038] Fig. 9 for Figure 7 The schematic diagram of the structural cross-section of both ends of the secondary pressing plate is shown;

[0039] Fig.10 for Figure 4 The schematic cross-sectional view of the structure of the sealing door and the oil drain port is shown;

[0040] Fig.11 for Fig.10 The schematic diagram of the structure of the middle section of the sealing door shown;

[0041] Fig.12 for Fig.11 The structural section diagram of the double lock plate position of the door body is shown.

[0042] Indicated in the figure:

[0043] 1. Secondary oil press box; 11. Oil collection bin; 12. Oil discharge port;

[0044] 13. Sealing door; 131. Extension column; 132. Storage cylinder; 1321. Oil drain groove; 133. Fruit residue cutting block; 134. L-shaped ring groove; 135. L-shaped limit swivel; 136. First gear ring; 137. Slag scraping motor; 138. Driving gear;

[0045] 14. Oil delivery hopper; 15. Hydraulic chamber; 16. Cylinder fixing frame; 17. Oil flow trough;

[0046] 2. Screw oil press box; 21. Oil press bin; 22. Feed port; 23. Oil and slag discharge port; 24. Engaging screw; 25. Synchronous gear; 26. Feed hopper;

[0047] 3. Synchronous drive box; 31. T-shaped housing; 32. Synchronous transmission chamber; 321. Square hole; 322. Center positioning shaft; 33. Power separation chamber;

[0048] 34, power partition plate; 341, movable slot; 342, electromagnetic slot; 343, electromagnetic block; 344, magnetic disk; 345, square shaft; 346, round hole; 35, driving motor; 36, driving gear; 37, transmission shaft; 371, transmission gear; 372, speed change gear;

[0049] 4. Solid-liquid separation cylinder; 41. Slag inlet; 42. Slag scraper; 43. Second gear ring; 44. Sealing ring; 45. Oblique retaining groove; 46. Wide-mouth silo;

[0050] 5. Three-stage hydraulic cylinder; 51. First-stage pressing plate; 52. Second-stage pressing plate; 53. Third-stage pressing plate; 54. Combination rod; 55. Contraction chamber; 551. Arc-shaped limit groove; 552. Positioning arc angle plate; 56. Third-stage cutting block; 57. Second-stage pressing area;

[0051] 6. Double lock plates of door body; 61. Fixed block; 611. Lock plate inlay; 612. Secondary lock hole; 62. Positioning rotation cavity; 63. Through hole; 64. Bend handle; 641. Through hole; 642. Secondary locking rod; 65. Positioning column; 66. Convex clamping block. DETAILED DESCRIPTION

[0052] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described 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, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0053] As described in the background art, the oil yield of camellia oil from cold pressing is low, and it is difficult to separate the camellia oil and oil residue. Secondary oil pressing increases the oil yield of camellia fruit.

[0054] In order to solve this technical problem, the present invention provides a camellia oil extraction process, which is used to increase the oil yield of cold-pressed camellia oil, and automatically separates pomace and camellia oil to achieve secondary oil pressing, increase the oil yield of camellia oil and automatically collect and discharge the pomace.

[0055] Specifically, please refer to Figure 1-Figure 12, the camellia oil extraction process specifically includes:

[0056] A secondary oil pressing box 1 is connected to a spiral oil pressing box 2 on the top surface, an oil collecting bin 11 is provided inside the secondary oil pressing box 1, an oil discharge port 12 is provided at one end of the oil collecting bin 11, the other end of the oil discharge port 12 is connected to the outside of the secondary oil pressing box 1, a sealing door 13 is hingedly connected to the outer wall of the secondary oil pressing box 1 on the outside of the oil discharge port 12, the end of the bottom of the spiral oil pressing box 2 away from the oil discharge port 12 is connected to the inside of the oil collecting bin 11, a synchronous drive box 3 is provided above the position where the secondary oil pressing box 1 is connected to the spiral oil pressing box 2, a solid-liquid separation cylinder 4 is rotatably connected at the center of the oil collecting bin 11, the synchronous drive box 3 synchronously drives the spiral oil pressing box 2 and the solid-liquid separation cylinder 4, and a three-stage hydraulic cylinder 5 is provided at the center of the end of the secondary oil pressing box 1 away from the oil discharge port 12;

[0057] A slag inlet 41 is obliquely opened on one side of the outer wall of the solid-liquid separation cylinder 4, and a slag scraper 42 is connected to one side of the outer wall of the slag inlet 41. The end of the slag scraper 42 is fitted and slidable on the inner wall of the oil collection bin 11.

[0058] The output end of the three-stage hydraulic cylinder 5 is connected to a primary pressing plate 51, and one end of the primary pressing plate 51 away from the three-stage hydraulic cylinder 5 is combined with a limited telescopic secondary pressing plate 52, and one end of the secondary pressing plate 52 away from the primary pressing plate 51 is combined with a limited telescopic tertiary pressing plate 53, and one end of the tertiary pressing plate 53 away from the secondary pressing plate 52 abuts against the surface of the sealing door 13, and a secondary pressing area 57 is formed between the primary pressing plate 51 and the secondary pressing plate 52, between the secondary pressing plate 52 and the tertiary pressing plate 53, and between the tertiary pressing plate 53 and the sealing door 13;

[0059] The specific processing technology of the camellia oil extraction process comprises the following steps:

[0060] Step 1: Take the cleaned, impurity-removed and shelled camellia seeds and soak them in clean water with a temperature below 5℃-40℃ for ten minutes to lower the temperature of the camellia seeds;

[0061] Step 2: Take out the tea seeds that have been soaked in clean water for a certain period of time, and put them into the inner side of the spiral oil pressing box 2 when the water content of the tea seeds reaches 5% to 8%;

[0062] Step 3: The camellia seeds are crushed by the double interlocking screws 24 to squeeze out the camellia oil contained in the camellia seeds. The camellia seed residues and the camellia oil after squeezing are discharged into the solid-liquid separation cylinder 4 in the oil collection bin 11 under the push of the interlocking screws 24. The camellia oil and the camellia seed residues fall into the solid-liquid separation cylinder 4. When the solid-liquid separation cylinder 4 rotates, the camellia oil and the camellia seeds flow to the bottom surface of the oil collection bin 11. When the solid-liquid separation cylinder 4 rotates, the scraper 42 is inclined, and the camellia oil can be discharged to the discharge bin 11. The oil port 12 is pushed out, and the camellia seed residue will enter the secondary pressing area 57 through the residue inlet 41 under the scraping of the scraper 42. When the camellia seed residue fills 50% to 80% of the secondary pressing area 57, the feeding of the camellia seeds is stopped. When the camellia seed residue is completely discharged through the spiral oil pressing box 2, the three-stage hydraulic cylinder 5 is started to perform secondary pressing on the camellia seed residue in the secondary pressing area 57, and the remaining camellia oil contained in the camellia seeds is completely squeezed out, and the camellia seed residue and the camellia oil are separated at the same time.

[0063] Step 4: After the camellia oil is squeezed, the sealing door 13 is opened, and the three-stage hydraulic cylinder 5 is started to push outward, so that the camellia seed residue can be discharged and the equipment is automatically cleaned;

[0064] Step 5: After the equipment is reset, continue to squeeze the camellia seeds.

[0065] The camellia oil extraction process provided by the present invention can automatically realize the solid-liquid separation of camellia oil and camellia seeds through the solid-liquid separation cylinder rotatably connected in the secondary pressing area, and automatically collect the camellia seed residues. The primary, secondary and tertiary pressing plates are driven by a three-stage hydraulic cylinder to perform secondary pressing on the camellia seeds, so that the remaining camellia oil contained in the camellia seeds can be completely squeezed out. Compared with traditional single pressing, the oil yield of camellia oil is significantly improved, so that the camellia seeds can be more fully utilized.

[0066] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings.

[0067] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions in the embodiments may be combined with each other.

[0068] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0069] Example 1

[0070] Please refer to Figure 1-Figure 12, camellia oil extraction process, the position where the secondary oil pressing box 1 is connected to the synchronous drive box 3 is located directly below the oil discharge port 12 and an oil feeding hopper 14 is provided, the position where the secondary oil pressing box 1 is connected to the tertiary hydraulic cylinder 5 is provided with a hydraulic bin 15, the tertiary hydraulic cylinder 5 is penetrated through the inner side of the hydraulic bin 15, a cylinder fixing frame 16 is fixed to the inner wall end of the oil discharge port 12, one side of the cylinder fixing frame 16 is attached to the surface of the synchronous drive box 3, and an oil flow groove 17 is formed between the outer wall of the cylinder fixing frame 16 and the oil discharge port 12.

[0071] An extension column 131 is fixedly connected to the center of one side of the sealing door 13 away from the oil discharge port 12, a storage cylinder 132 is provided inside the extension column 131, and the storage cylinder 132 is connected to the inside of the oil discharge port 12. An oil discharge groove 1321 is provided on one side of the sealing door 13 that is close to the oil discharge port 12 and is located directly below the storage cylinder 132. The top of the oil discharge groove 1321 is connected to the oil flow groove 17. A side of the sealing door 13 that is close to the oil discharge port 12 is located in the middle of the cylinder fixing frame 16, and symmetrical pomace cutting blocks 133 are provided on the upper and lower sides. The position where the sealing door 13 is connected to the pomace cutting block 133 is provided with an L shaped annular groove 134, an L-shaped limiting swivel 135 is rotatably connected inside the L-shaped annular groove 134, the residue cutting block 133 is fixedly connected to the outer wall of the L-shaped annular groove 134, the outer wall of one end of the L-shaped annular groove 134 located inside the L-shaped limiting swivel 135 is connected to the first gear ring 136, and a residue scraping motor 137 is fixedly connected to the upper side of the outer wall of the sealing door 13 connected to the extension column 131, the output end of the residue scraping motor 137 is penetrated inside the L-shaped annular groove 134, and the output end of the residue scraping motor 137 is connected to a driving gear 138, and the driving gear 138 is meshed with the first gear ring 136 for transmission.

[0072] An oil pressing bin 21 is provided inside the screw oil pressing box 2, and a feed port 22 is provided on the top of one end of the oil pressing bin 21 close to the oil discharge port 12, and a feed hopper 26 is connected to the top of the feed port 22 located on the top surface of the screw oil pressing box 2, and an oil and slag discharge port 23 is provided on the bottom of one end of the oil pressing bin 21 away from the feed port 22, and the oil and slag discharge port 23 is communicated with the inside of the oil collecting bin 11, and mutually meshing interlocking screws 24 are rotatably connected on both sides of the oil pressing bin 21, and one end of the interlocking screw 24 extends to the inside of the synchronous drive box 3, and a synchronous gear 25 is connected to the end of the interlocking screw 24 located inside the synchronous drive box 3, and the synchronous gears 25 are meshed with each other.

[0073] The position where the secondary oil pressing box 1 is connected to the sealing door 13 is located directly below the oil discharge port 12, and an oil feeding hopper 14 is provided, which can effectively guide the oil discharged from the oil discharge bin to flow out and be collected to avoid spilling the oil. At the same time, a cylinder fixing frame 16 is fixed at the end of the inner wall of the oil discharge port 12, and an oil flow groove 17 is formed between it and the oil discharge port 12. In combination with the oil discharge groove 1321 at the sealing door 13 and other structures, the flow path of the oil is optimized, the oil collection and transportation are smoother, the oil residue is reduced, and the collection efficiency of camellia oil is further improved.

[0074] A residue cutting block 133 is provided at the sealing door 13, which is driven to rotate by a residue scraping motor 137. After the sealing door 13 is used, the residue scraping motor 137 can be driven to automatically clean the oil tea seed residue on the inner wall of the sealing door 13. The third-level cutting block 56 provided on the first-level, second-level and third-level pressing plates 53 can cut the oil tea seed residue simultaneously when squeezing it, so as to facilitate the removal of the residue.

[0075] Example 2

[0076] The camellia oil extraction process provided in Example 1 is further optimized. Specifically, Figure 1-Figure 12 The synchronous drive box 3 includes a T-shaped shell 31, and a synchronous transmission chamber 32 and a power separation chamber 33 are respectively provided on both sides of the interior of the T-shaped shell 31. A power separation plate 34 is provided between the synchronous transmission chamber 32 and the power separation chamber 33. The synchronous gear 25 is located inside the synchronous transmission chamber 32. A driving motor 35 is fixedly connected to one side of the outer wall of the T-shaped shell 31. The output end of the driving motor 35 is penetrated in the power separation chamber 33. A driving gear 36 is connected to the output end of the driving motor 35. The end of the central axis of the driving gear 36 away from the driving motor 35 penetrates the power separation plate 34. The end of the central axis of the driving gear 36 that penetrates the power separation plate 34 is transmission-connected to the synchronous gear 25 on one side. A transmission shaft 37 is penetrated at the bottom of the power separation chamber 33. A transmission gear 371 is fixedly connected to the outer wall of the transmission shaft 37. A speed change gear 372 is fitted on one side of the transmission gear 371, and the transmission gear 371 is meshed with the driving gear 36 for transmission.

[0077] A movable groove 341 is provided at the center of the position where the power partition plate 34 is connected to the driving gear 36, and symmetrical electromagnetic grooves 342 are provided on both sides of the movable groove 341. An electromagnetic block 343 is fixedly connected inside the electromagnetic groove 342, and a magnetic disk 344 is slidably connected to one side of the movable groove 341. The central axis of the driving gear 36 is penetrated inside the magnetic disk 344 and fixedly connected to the magnetic disk 344. A circular hole 346 is provided at the center of one end of the central axis of the driving gear 36 that penetrates inside the synchronous transmission warehouse 32, and a square shaft 345 is provided on the outside of the circular hole 346. A square hole 321 is provided at the end of the central axis of the synchronous gear 25 that is transmission-connected to the driving gear 36, and a central positioning shaft 322 is connected to the center of the square hole 321. The central positioning shaft 322 is slidably penetrated inside the circular hole 346, and the square shaft 345 is slidably penetrated inside the square hole 321.

[0078] The synchronous drive box 3 realizes the synchronous driving of the interlocking screw 24 in the spiral oil pressing box 2 and the solid-liquid separation cylinder 4 through the synchronous transmission chamber 32 and the power separation chamber 33 inside the T-shaped shell. The driving motor 35 cooperates with the transmission gear 371, the speed gear 372, etc. through the driving gear 36, which can not only provide power for the equipment, but also realize the speed reduction adjustment of the solid-liquid separation cylinder 4 through the speed gear 372 to meet the requirements of the solid-liquid separation speed. Moreover, through the movable groove 341, the electromagnetic groove 342 and other structures on the power partition plate 34, the connection and separation of the driving gear 36 and the synchronous gear 25 can be flexibly controlled, which is convenient for equipment maintenance and energy saving. Compared with the traditional single drive mode, it has better adaptability and reliability.

[0079] Example 3

[0080] The camellia oil extraction process provided in Example 1 or 2 is further optimized. Specifically, Figure 1-Figure 12 As shown, a second gear ring 43 is fixed to the outer wall of one end of the solid-liquid separation cylinder 4 away from the oil discharge port 12, and the second gear ring 43 is meshed with the speed gear 372 for transmission. A sealing ring 44 is fixed to the outer wall of one end of the solid-liquid separation cylinder 4 connected to the second gear ring 43, and the sealing ring 44 is limited to rotate on the inner wall of the oil collecting bin 11. An oblique groove 45 is provided at the position where the inner wall of the solid-liquid separation cylinder 4 is connected to the three-stage pressing plate 53, and the outer wall of the three-stage pressing plate 53 is engaged with the outer wall of the oblique groove 45. A wide-mouth silo 46 is formed on the side of the oblique groove 45 close to the oil discharge port 12, and the outer wall of the three-stage pressing plate 53 slides in contact with the inner surface of the wide-mouth silo 46.

[0081] A rotating solid-liquid separation cylinder 4 is arranged at the center of the oil collecting bin 11 of the secondary oil pressing box 1. During its rotation, the automatic separation of camellia oil and camellia seed residue can be achieved. When the solid-liquid separation cylinder 4 rotates, the camellia oil flows to the inner bottom surface of the oil collecting bin 11 and is pushed to the oil discharge port 12 for discharge through the scraper 42. The camellia seed residue enters the secondary pressing area 57 under the scraping of the scraper 42. After the pressing is completed, the three-stage hydraulic cylinder 5 contracts, driving the combination rod 54 of the three-stage pressing plate 53 to disengage from the sealing door 13, opening the sealing door 13, and starting the three-stage hydraulic cylinder 5 to push outward, so that the camellia seed residue can be automatically discharged and the equipment can be cleaned at the same time. The whole process realizes the integration of solid-liquid separation and automatic slag discharge, reduces equipment investment and manual intervention, and improves production efficiency.

[0082] Example 4

[0083] The camellia oil extraction process provided in Examples 1-3 is further optimized. Specifically, Figure 1-Figure 12 As shown, a combination rod 54 is fixedly connected at the center of the side of the first-stage pressing plate 51, the second-stage pressing plate 52 and the third-stage pressing plate 53 facing away from the third-stage hydraulic cylinder 5, a contraction bin 55 is provided inside the combination rod 54, and an inner wall of the contraction bin 55 is provided with annular arc-shaped limiting grooves 551 distributed equidistantly, and a positioning arc angle disc 552 is connected to the end of the combination rod 54 close to the contraction bin 55, and the positioning arc angle disc 552 and the combination rod 54 fit and slide on the inner surface of the arc-shaped limiting groove 551, and relative third-stage cutting blocks 56 are fixed on both sides of the first-stage pressing plate 51, the second-stage pressing plate 52 and the third-stage pressing plate 53, and the third-stage cutting block 56 fixedly connected to the side of the third-stage pressing plate 53 facing away from the second-stage pressing plate 52 is opposite to the pomace cutting block 133.

[0084] The first-stage pressing plate 51, the second-stage pressing plate 52 and the third-stage pressing plate 53 are combined in a limited telescopic manner. Driven by the third-stage hydraulic cylinder 5, the pressing space and pressure can be flexibly adjusted according to the filling amount and pressing requirements of the camellia seed residue to ensure that different amounts of camellia seed residue can be effectively pressed. Compared with the traditional fixed-structure pressing plate, this design can better adapt to changes in the production process and improve the stability and effect of pressing.

[0085] Example 5

[0086] The camellia oil extraction process provided in Examples 1-4 is further optimized. Specifically, Figure 1-Figure 12 As shown, the sealing door 13 is hingedly connected with a door body double lock plate 6 at one end away from the hinged position with the secondary oil press box 1, and symmetrical fixing blocks 61 are fixed to the outer wall of the secondary oil press box 1 near the door body double lock plate 6, and locking plate recesses 611 are formed between the fixing blocks 61, and the door body double lock plate 6 is slidably engaged inside the locking plate recesses 611, and symmetrical secondary lock holes 612 are opened on the upper and lower surfaces of the fixing blocks 61.

[0087] A positioning and rotating cavity 62 is provided inside the end of the door body double lock plate 6 away from the sealed door 13, and through holes 63 are provided on the upper and lower sides of the positioning and rotating cavity 62. A rotatably connected bent handle 64 is penetrated inside the through hole 63, and a positioning column 65 is connected to the top of one end of the bent handle 64 located inside the through hole 63. The positioning column 65 is limited and rotated inside the positioning and rotating cavity 62, and a convex clamping block 66 is fixedly connected to one side of the bent handle 64 located outside the through hole 63, and the convex clamping block 66 abuts against the outer surface of the fixed block 61, and a through hole 641 is provided in the middle of one end of the bent handle 64 away from the positioning column 65, and a secondary locking rod 642 is slidably penetrated inside the through hole 641, and the end of the secondary locking rod 642 is penetrated inside the secondary lock hole 612.

[0088] A double lock plate 6 for the door body is provided at one end of the sealing door 13 away from the hinged position with the secondary oil pressing box 1. The double locking of the sealing door 13 is achieved by cooperating with the fixed block 61 on the outer wall of the secondary oil pressing box 1 through structures such as a bent handle 64, a positioning column 65, a convex clamping block 66 and a secondary locking rod 642. Compared with the traditional simple sealing method, this structure improves the sealing and stability of the sealing door 13 during the pressing process, prevents leakage of tea seed residue and oil, and ensures the normal progress of the production process.

[0089] The use process of the camellia oil extraction process provided by the present invention is as follows:

[0090] Select the tea seeds that have been cleaned, impurities removed and shelled, soak the tea seeds in clean water at a temperature of 5°C-40°C, and soak them in layers for ten minutes to lower the temperature of the tea seeds.

[0091] Check whether the secondary oil press box 1, screw oil press box 2, synchronous drive box 3, solid-liquid separation cylinder 4, tertiary hydraulic cylinder 5 and other equipment are operating normally, the transmission status of each component, whether the sealed door 13 can be opened and closed normally, whether the double lock plate 6 of the door body can be locked normally, ensure that the channels such as the oil feeding hopper 14, hydraulic bin 15, and oil flow groove 17 are not blocked, and the transmission parts such as gears, gear rings, and screws are well lubricated.

[0092] When the tea seeds are soaked and their water content reaches 5%-8%, they are passed through the feed hopper 26 on the top of the spiral oil pressing box 2 and placed into the oil pressing bin 21 inside the spiral oil pressing box 2 through the feed port 22. The drive motor 35 of the synchronous drive box 3 is started, and the driving gear 36 at the output end of the drive motor 35 drives the synchronous gear 25 to rotate, thereby rotating the double-meshing screws 24 that mesh with each other in the spiral oil pressing box 2.

[0093] The oil of the camellia seeds is squeezed out by the interlocking rolling of the double interlocking screws 24. The pressed camellia seed residue and camellia oil are discharged into the oil collecting bin 11 through the oil and residue discharge port 23 under the push of the interlocking screws 24. The solid-liquid separation cylinder 4 rotates under the drive of the synchronous drive box 3. The camellia oil and camellia seed residue are scraped into the solid-liquid separation cylinder 4 through the scraper 42 as the solid-liquid separation cylinder 4 rotates.

[0094] When the solid-liquid separation cylinder 4 is rotating, the camellia oil and camellia seed residues flowing and falling on the bottom surface of the oil collecting bin 11 will be scraped by the scraper 42. Since the scraper 42 on the outer wall of the solid-liquid separation cylinder 4 is inclined, the camellia oil can be pushed to the oil discharge port 12 for discharge, while the camellia seed residues will be scraped by the scraper 42 and pass through the residue inlet 41 into the secondary pressing area 57 formed by the primary pressing plate 51, the secondary pressing plate 52, the tertiary pressing plate 53 and the sealing door 13.

[0095] When the camellia seed residue fills the secondary pressing area 57 to 50%-80%, the feeding of camellia seeds is stopped. After all the camellia seed residue is completely discharged through the spiral oil pressing box 2, the third-stage hydraulic cylinder 5 is started to perform secondary pressing on the camellia seed residue in the secondary pressing area 57 to completely squeeze out the remaining camellia oil contained in the camellia seeds, thereby achieving further separation of the camellia seed residue and the camellia oil.

[0096] Turn the bent handle 64 on the double lock plate 6 of the door body to make the convex clamping block 66 leave the outer surface of the fixed block 61, and pull the secondary locking rod 642 out of the secondary lock hole 612 to release the lock of the double lock plate 6 of the door body on the sealed door 13. At this time, retract the third-stage hydraulic cylinder 5 to complete the separation of the combination rod 54 of the third-stage pressing plate 53 from the sealed door 13, then open the sealed door 13, start the third-stage hydraulic cylinder 5 to push it outward, and discharge the tea seed residue in the secondary pressing area 57.

[0097] After the camellia seed residue is discharged, the sealing door 13 can be cleaned by rotating the residue cutting block 133 on the side of the sealing door 13 that is close to the oil discharge port 12 under the drive of the scraping motor 137, so as to scrape off the camellia seed residue remaining on the surface of the sealing door 13, thereby completing the residue cleaning on the surface of the sealing door 13.

[0098] It should be noted that the structural design of the oil discharge port 12, such as the oil flow groove 17 and the oil discharge groove 1321, can ensure that the camellia oil is discharged smoothly and will not cause a large amount of oil residue during the slag discharge process.

[0099] After the slag discharge is completed, the three-stage hydraulic cylinder 5 is retracted, the sealing door 13 is closed, and the sealing door 13 is relocked through the door body double lock plate 6 to restore the equipment to the initial state and prepare for the next round of tea seed pressing.

[0100] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0101] Obviously, the embodiments described above are only some embodiments of the present invention, rather than all embodiments. The preferred embodiments of the present invention are given in the accompanying drawings, but they do not limit the patent scope of the present invention. The present invention can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present invention more thorough and comprehensive. Although the present invention has been described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific embodiments, or to perform equivalent replacements for some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of the present invention, directly or indirectly used in other related technical fields, is also within the scope of patent protection of the present invention.

Claims

1. A camellia oil extraction process, characterized in that: The device used in the camellia oil extraction process comprises: a secondary oil pressing box (1) connected to a spiral oil pressing box (2) on the top surface, an oil collecting bin (11) is provided inside the secondary oil pressing box (1), and a solid-liquid separation cylinder (4) is rotatably connected at the center of the oil collecting bin (11); A slag inlet (41) is obliquely provided on one side of the outer wall of the solid-liquid separation cylinder (4), a slag scraper (42) is connected to one side of the outer wall of the slag inlet (41), and an end of the slag scraper (42) is fitted and slidably attached to the inner wall of the oil collection bin (11); The specific processing technology of the camellia oil extraction process comprises the following steps: Step 1: Take the cleaned, impurity-removed and shelled camellia seeds and soak them in clean water with a temperature below 5℃-40℃ for ten minutes to lower the temperature of the camellia seeds; Step 2: Take out the tea seeds that have been soaked in clean water for a certain period of time, and put them into the inner side of the spiral oil pressing box (2) when the water content of the tea seeds reaches 5% to 8%; Step 3: The camellia seeds are passed through a spiral oil press box (2) for oil pressing, and the camellia seed residue and camellia oil are separated at the same time; Step 4: After the camellia oil is squeezed, the camellia seed residue is discharged and the equipment is automatically cleaned; Step 5: After the equipment is reset, continue to press the camellia seeds.

2. The camellia oil extraction process according to claim 1, characterized in that: An oil discharge port (12) is provided at one end of the oil collecting bin (11), and the other end of the oil discharge port (12) is connected to the outside of the secondary oil pressing box (1). A sealing door (13) is hingedly connected to the outer wall of the secondary oil pressing box (1) outside the oil discharge port (12). An end of the bottom of the spiral oil pressing box (2) away from the oil discharge port (12) is connected to the inside of the oil collecting bin (11). A synchronous drive box (3) is provided above the position where the secondary oil pressing box (1) is connected to the spiral oil pressing box (2). An oil delivery hopper (14) is provided at the position where the secondary oil pressing box (1) is connected to the synchronous drive box (3) and is located directly below the oil discharge port (12). A hydraulic chamber (15) is provided at the position where the box (1) is connected to the three-stage hydraulic cylinder (5), the three-stage hydraulic cylinder (5) is arranged inside the hydraulic chamber (15), a cylinder fixing frame (16) is fixed to the inner wall end of the oil discharge port (12), one side of the cylinder fixing frame (16) is attached to the surface of the synchronous drive box (3), an oil flow groove (17) is formed between the outer wall of the cylinder fixing frame (16) and the oil discharge port (12), the synchronous drive box (3) synchronously drives the spiral oil pressing box (2) and the solid-liquid separation cylinder (4), and a three-stage hydraulic cylinder (5) is provided at the center of one end of the two-stage oil pressing box (1) away from the oil discharge port (12); The output end of the three-stage hydraulic cylinder (5) is connected to a first-stage pressing plate (51); one end of the first-stage pressing plate (51) away from the three-stage hydraulic cylinder (5) is combined with a second-stage pressing plate (52) with limited telescopic movement; one end of the second-stage pressing plate (52) away from the first-stage pressing plate (51) is combined with a third-stage pressing plate (53) with limited telescopic movement; one end of the third-stage pressing plate (53) away from the second-stage pressing plate (52) abuts against the surface of the sealing door (13); a second-stage pressing area (57) is formed between the first-stage pressing plate (51) and the second-stage pressing plate (52), between the second-stage pressing plate (52) and the third-stage pressing plate (53), and between the third-stage pressing plate (53) and the sealing door (13).

3. The camellia oil extraction process according to claim 2, characterized in that: An extension column (131) is fixedly connected to the center of a side of the sealing door (13) facing away from the oil discharge port (12); a storage cylinder (132) is provided inside the extension column (131); the storage cylinder (132) is connected to the inside of the oil discharge port (12); an oil discharge groove (1321) is provided on a side of the sealing door (13) that is in contact with the oil discharge port (12) and is located directly below the storage cylinder (132); the top of the oil discharge groove (1321) is connected to the oil flow groove (17); a side of the sealing door (13) that is in contact with the oil discharge port (12) and is located in the middle of the cylinder fixing frame (16); symmetrical pomace cutting blocks (133) are provided on the upper and lower sides; a position where the sealing door (13) is connected to the pomace cutting block (133) is provided An L-shaped annular groove (134) is provided, an L-shaped limit rotating ring (135) is rotatably connected inside the L-shaped annular groove (134), the slag cutting block (133) is fixedly connected to the outer wall of the L-shaped annular groove (134), the outer wall of one end of the L-shaped annular groove (134) located inside the L-shaped limit rotating ring (135) is connected to a first toothed ring (136), a slag scraping motor (137) is fixedly connected above a surface of the outer wall of the sealing door (13) connected to the extension column (131), the output end of the slag scraping motor (137) is arranged inside the L-shaped annular groove (134), the output end of the slag scraping motor (137) is connected to a driving gear (138), and the driving gear (138) is meshed with the first toothed ring (136) for transmission.

4. The camellia oil extraction process according to claim 3, characterized in that: An oil pressing bin (21) is provided inside the screw oil pressing box (2), a feed port (22) is provided at the top of one end of the oil pressing bin (21) close to the oil discharge port (12), the top of the feed port (22) is located on the top surface of the screw oil pressing box (2) and is connected to a feed hopper (26), an oil discharge and slag discharge port (23) is provided at the bottom of one end of the oil pressing bin (21) away from the feed port (22), the oil discharge and slag discharge port (23) is communicated with the inside of the oil collecting bin (11), both sides of the oil pressing bin (21) are rotatably connected with mutually meshing interlocking screws (24), one end of the interlocking screws (24) extends to the inside of the synchronous drive box (3), one end of the interlocking screws (24) located inside the synchronous drive box (3) is connected to a synchronous gear (25), and the synchronous gears (25) are meshed with each other.

5. The camellia oil extraction process according to claim 4, characterized in that: The synchronous drive box (3) comprises a T-shaped housing (31), wherein a synchronous transmission chamber (32) and a power separation chamber (33) are respectively provided on both sides of the interior of the T-shaped housing (31), a power separation plate (34) is provided between the synchronous transmission chamber (32) and the power separation chamber (33), the synchronous gear (25) is located inside the synchronous transmission chamber (32), a driving motor (35) is fixedly connected to one side of the outer wall of the T-shaped housing (31), an output end of the driving motor (35) is arranged inside the power separation chamber (33), and the output end of the driving motor (35) is connected to a driving gear The driving gear (36) is provided with a transmission shaft (37) at the lower part of the power separation chamber (33), and a transmission gear (371) is fixedly connected to the outer wall of the transmission shaft (37), and a speed change gear (372) is attached to one side of the transmission gear (371), and the transmission gear (371) is meshed with the driving gear (36) for transmission.

6. The camellia oil extraction process according to claim 5, characterized in that: A movable groove (341) is provided at the center of the position where the power partition plate (34) is connected to the driving gear (36), symmetrical electromagnetic grooves (342) are provided on both sides of the movable groove (341), an electromagnetic block (343) is fixedly connected inside the electromagnetic groove (342), a magnetic disk (344) is slidably connected inside one side of the movable groove (341), a central axis of the driving gear (36) is passed through the magnetic disk (344) and is fixedly connected to the magnetic disk (344), and the central axis of the driving gear (36) is fixedly connected to the magnetic disk (344). A circular hole (346) is provided at the center of one end of the shaft passing through the interior of the synchronous transmission bin (32), and a square shaft (345) is provided outside the circular hole (346). A square hole (321) is provided at the end of the central shaft of the synchronous gear (25) connected to the driving gear (36) for transmission, and a central positioning shaft (322) is connected at the center of the square hole (321). The central positioning shaft (322) is slidably passed through the inner side of the circular hole (346), and the square shaft (345) is slidably passed through the inner side of the square hole (321).

7. The camellia oil extraction process according to claim 1, characterized in that: A second toothed ring (43) is fixed to the outer wall of one end of the solid-liquid separation cylinder (4) away from the oil discharge port (12), and the second toothed ring (43) is meshed with the speed gear (372) for transmission. A sealing ring (44) is fixedly connected to the outer wall of one end of the solid-liquid separation cylinder (4) connected to the second toothed ring (43), and the sealing ring (44) is limitedly rotated on the inner wall of the oil collection bin (11). An oblique retaining groove (45) is provided at the position where the inner wall of the solid-liquid separation cylinder (4) is connected to the third-stage pressing disc (53), and the outer wall of the third-stage pressing disc (53) is snap-fitted against the outer wall of the oblique retaining groove (45). A wide-mouth silo (46) is formed on the side of the oblique retaining groove (45) close to the oil discharge port (12), and the outer wall of the third-stage pressing disc (53) slides in contact with the inner surface of the wide-mouth silo (46).

8. The camellia oil extraction process according to claim 3, characterized in that: A combination rod (54) is fixedly connected at the center of a side of the first-stage pressing disc (51), the second-stage pressing disc (52) and the third-stage pressing disc (53) away from the third-stage hydraulic cylinder (5); a contraction chamber (55) is provided inside the combination rod (54); an inner wall of the contraction chamber (55) is provided with annular arc-shaped limiting grooves (551) distributed at equal intervals; a positioning arc angle disc (552) is connected to one end of the combination rod (54) close to the contraction chamber (55); the positioning arc angle disc (552) and the combination rod (54) are fitted and slid on the inner surface of the arc-shaped limiting groove (551); opposite third-stage cutting blocks (56) are fixedly connected on both sides of the first-stage pressing disc (51), the second-stage pressing disc (52) and the third-stage pressing disc (53); the third-stage cutting block (56) fixedly connected to a side of the third-stage pressing disc (53) away from the second-stage pressing disc (52) is opposite to the pomace cutting block (133).

9. The camellia oil extraction process according to claim 1, characterized in that: The sealing door (13) is hingedly connected to a double locking plate (6) of the door body at one end away from the hinged position with the secondary oil pressing box (1); a symmetrical fixing block (61) is fixed to the outer wall of the secondary oil pressing box (1) near the double locking plate (6) of the door body; a locking plate recess (611) is formed between the fixing blocks (61); the double locking plate (6) of the door body is slidably engaged inside the locking plate recess (611); and symmetrical secondary locking holes (612) are provided on the upper and lower surfaces of the fixing block (61).

10. The camellia oil extraction process according to claim 9, characterized in that: A positioning rotation chamber (62) is provided inside the end of the door body double lock plate (6) away from the sealed door (13), and through holes (63) are provided on the upper and lower sides of the positioning rotation chamber (62). A rotatably connected bent handle (64) is passed through the through hole (63), and a positioning column (65) is connected to the top of one end of the bent handle (64) located inside the through hole (63). The positioning column (65) is limitedly rotated inside the positioning rotation chamber (62), and a convex clamping block (66) is fixedly connected to the side of the bent handle (64) located outside the through hole (63), and the convex clamping block (66) abuts against the outer surface of the fixed block (61), and a through hole (641) is provided in the middle of the end of the bent handle (64) away from the positioning column (65), and a secondary locking rod (642) is slidably passed through the through hole (641), and the end of the secondary locking rod (642) is passed through the inner side of the secondary lock hole (612).

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