Cold and hot dual-extraction system for plant extraction and use method of cold and hot dual-extraction system

Abstract

The invention discloses a cold and hot double extraction system for plant extraction and a using method thereof, and relates to the technical field of plant extraction.The cold and hot double extraction system comprises an extraction box, a raw material box and a filtering box, a cold extraction feeding pipe and a hot extraction feeding pipe are installed on the left side and the right side of the upper surface of the extraction box correspondingly, and the raw material box is arranged above the extraction box; the lower part of the raw material box is communicated with the interior of the extraction box through a conveying pipe; a stirring mechanism and a reciprocating screw rod are sequentially arranged in the extraction box from top to bottom, and a driving mechanism is mounted on the left side of the extraction box. According to the cold and hot dual-extraction system for plant extraction and the using method thereof, the crushing mechanism is arranged, a first servo motor is started, the first servo motor drives the crushing mechanism to rotate through an output shaft, the crushing mechanism crushes plant raw materials, after crushing is completed, a control valve on a conveying pipe is opened, the plant crushed materials are conveyed into an extraction box through the conveying pipe, and the plant raw materials are extracted; therefore, the plants are crushed before extraction, and the extraction efficiency of the plants is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of plant extraction, and particularly to a cold and hot double extraction system for plant extraction and its usage method. Background Art

[0002] Plant extraction mainly extracts active ingredients from plants, including but not limited to alkaloids, phytohormones, and other active substances. Solvent extraction method is often used to extract plants, and the extraction and purification are carried out by utilizing the solubility differences of phytohormones in different solvents; these methods can effectively extract components with medicinal or health care value, such as alkaloids, phytohormones, etc. from plants, and appropriate extraction methods can be selected according to the properties of specific components.

[0003] For example, a plant extractor for facilitating rapid feeding with the application number 202222457099.0, through the suction generated at the inlet when the water pump is running, when the plant extractor extracts the plant into a liquid, it can quickly suck down the extract flowing down from the plant extractor, solve the problem of the slow flow rate of the thick plant extract, prevent the situation of blockage at the feeding port caused by the slow flow rate of the plant extract, reduce the cleaning trouble caused by the solidification of the plant extraction liquid, and improve the working efficiency of the plant extractor. However, there are still certain defects in its device;

[0004] The plant is directly placed inside the extractor for extraction, and the plant is not crushed before extraction, resulting in the need to crush the plant inside the extractor, thereby reducing the extraction efficiency of the plant and increasing the extraction time of the plant.

[0005] Therefore, we propose a cold and hot double extraction system for plant extraction and its usage method to solve the problems raised above. Summary of the Invention

[0006] The purpose of the present invention is to provide a cold and hot double extraction system for plant extraction and its usage method to solve the problem in the above background art that the plant is directly placed inside the extractor for extraction currently in the market, and the plant is not crushed before extraction, resulting in the need to crush the plant inside the extractor, thereby reducing the extraction efficiency of the plant and increasing the extraction time of the plant.

[0007] To achieve the above purpose, the present invention provides the following technical solution: A cold and hot double extraction system for plant extraction and its usage method, including an extraction tank, a raw material tank, and a filtration tank. Cold extraction feed pipes and hot extraction feed pipes are respectively installed on the left and right sides of the upper surface of the extraction tank. A raw material tank is arranged above the extraction tank, and the lower part of the raw material tank is connected to the inside of the extraction tank through a conveying pipe;

[0008] Inside the extraction tank, a stirring mechanism and a reciprocating lead screw are sequentially arranged from top to bottom. A driving mechanism is installed on the left side of the extraction tank. A second gear and a third gear are respectively installed on the stirring mechanism and the reciprocating lead screw. A movable slider is installed on the reciprocating lead screw, and a first mixing plate and a second mixing plate are respectively installed on the upper and lower sides of the movable slider;

[0009] A clamping groove is formed on the right side of the extraction tank, and a positioning block is installed on the right side of the extraction tank. A filter tank is arranged on the right side of the extraction tank, and a filter screen is vertically installed inside the filter tank;

[0010] A connecting plate is installed on the left side of the filter tank, and positioning elastic pieces are symmetrically installed on the upper, lower, left and right sides of the connecting plate. A threaded rod is installed on the connecting plate, and a limiting ball is installed at the left end of the threaded rod.

[0011] Preferably, the cold extraction feed pipe and the hot extraction feed pipe are respectively communicated with the analytical agent and the boiling solvent.

[0012] With the above structural design, the analytical agent is added into the extraction tank through the cold extraction feed pipe to infiltrate the plant scraps. After the infiltration of the plant scraps is completed, the boiling solvent is put into the extraction tank through the hot extraction feed pipe, so that the solvent penetrates into the plant tissue to strengthen the extraction process.

[0013] Preferably, the raw material tank and the extraction tank are connected by a connecting block. Feed inlets are formed on the left and right sides of the upper surface of the raw material tank, and a first servo motor is installed on the upper surface of the raw material tank.

[0014] With the above structural design, the plants to be extracted are continuously put into the raw material tank through the feed inlets for crushing.

[0015] Preferably, a crushing mechanism is installed on the lower surface of the first servo motor through an output shaft, and the inner bottom surface of the raw material tank is designed as an inclined surface structure.

[0016] With the above structural design, the first servo motor is started. The first servo motor drives the crushing mechanism to rotate through the output shaft. The crushing mechanism crushes the plant raw materials. After the crushing is completed, the control valve on the conveying pipe is opened, and the plant scraps are conveyed into the extraction tank through the conveying pipe.

[0017] Preferably, the driving mechanism includes a connecting frame, a second servo motor, a transmission shaft and a first gear. A connecting frame is installed on the left side of the extraction tank, a second servo motor is installed on the left side of the connecting frame, a transmission shaft is installed on the right side of the second servo motor through an output shaft, and a first gear is installed on the transmission shaft.

[0018] With the above structural design, the second servo motor is started. The second servo motor drives the transmission shaft to rotate through the output shaft. The transmission shaft drives the first gear to rotate. The first gear drives the second gear and the third gear to rotate. The second gear and the third gear respectively drive the stirring mechanism and the reciprocating lead screw to rotate.

[0019] Preferably, the first gear meshes with both the second gear and the third gear, and the left sides of the stirring mechanism and the reciprocating lead screw are rotatably connected to the extraction tank. Sealing gaskets are provided at the joints of the stirring mechanism, the reciprocating lead screw and the extraction tank.

[0020] With the above structural design, the sealing performance of the extraction tank is improved, thereby ensuring the extraction effect of the plants inside the extraction tank.

[0021] Preferably, the first mixing plate and the second mixing plate are designed in a reverse arc structure, and a guide rod passes through the second mixing plate. The left and right ends of the guide rod are connected to the inner wall of the extraction tank, and the guide rod is parallel to the reciprocating lead screw.

[0022] With the above structural design, the guide rod plays a guiding role in the left and right movement of the second mixing plate, thereby playing a guiding role in the movable slider and the first mixing plate, making the first mixing plate and the second mixing plate more stable during the left and right movement. There are gaps between the front and rear ends of the first mixing plate and the second mixing plate and the inner wall of the extraction tank. During the left and right movement of the first mixing plate and the second mixing plate, the analytical agent and the plant fragments at the bottom of the extraction tank can be turned over, thereby improving the infiltration effect of the analytical agent on the plant fragments and improving the extraction efficiency of the plants.

[0023] Preferably, a positioning groove is provided on the left side of the filter tank. The center line of the positioning groove coincides with the center line of the positioning block. The filter tank and the extraction tank are connected by a connecting pipe. Control valves are installed on both the connecting pipe and the delivery pipe. The connecting pipe and the filter tank are of a detachable connection structure.

[0024] With the above structural design, after the infiltration of the plant fragments is completed, boiling solvent is put into the extraction tank through the hot extraction feed pipe, so that the solvent penetrates into the plant tissue to strengthen the extraction process. After the plant extraction is completed, the control valve on the connecting pipe is opened, and the infiltrated plant fragments are transported to the filter tank through the connecting pipe. The extracted plant fragments are filtered through the filter screen, and then the plant extraction liquid is discharged through the drain pipe.

[0025] Preferably, the limiting ball is located between two positioning elastic pieces, and arc grooves are provided on both the upper surface and the lower surface of the positioning elastic pieces. A clamping block is installed in the clamping groove, and the clamping block can be clamped with the arc groove on the reverse side of the positioning elastic piece.

[0026] With the above structural design, when installing the filter box, the positioning groove on the filter box is aligned with the positioning block on the extraction box, and the positioning groove is abutted against the positioning block. At this time, the positioning spring piece is located inside the clamping groove on the extraction box, and then the threaded rod is rotated, and the threaded rod drives the limiting ball to move to the left, so that the limiting ball pushes the positioning spring piece outward and tightly abuts against the inside of the clamping groove, thereby completing the installation of the filter box. Similarly, the filter box can be disassembled, which is convenient for disassembly and assembly of the filter box and transportation of the extraction device. At the same time, the positioning structure design of the positioning spring piece allows a small amount of error between the clamping groove and the positioning spring piece compared to the alignment connection using a threaded mechanism, and the manufacturing difficulty is relatively low.

[0027] Preferably, the method of use specifically comprises the following steps:

[0028] S1. The plants to be extracted are continuously put into the raw material box through the feed port, and the first servo motor is started. The first servo motor drives the crushing mechanism to rotate through the output shaft, and the crushing mechanism crushes the plant raw materials. After the crushing is completed, the control valve on the conveying pipe is opened, and the plant crushed materials are conveyed to the inside of the extraction box through the conveying pipe;

[0029] S2, start the second servo motor, the second servo motor drives the transmission shaft to rotate through the output shaft, the transmission shaft drives the first gear to rotate, the first gear drives the second gear and the third gear to rotate, the second gear and the third gear respectively drive the stirring mechanism and the reciprocating screw to rotate, add the analytical agent from the cold extraction feed pipe to the extraction box, fully infiltrate the plant fragments, the stirring mechanism stirs and mixes the analytical agent and the plant fragments, the reciprocating screw can drive the movable slider to move left and right, the movable slider drives the first mixing plate and the second mixing plate to move left and right, so as to turn over the analytical agent and the plant fragments at the bottom of the extraction box, thereby improving the infiltration effect of the analytical agent on the plant fragments and improving the extraction efficiency of the plants;

[0030] S3. After the infiltration of the plant fragments is completed, a boiling solvent is added into the extraction box through the hot extraction feed pipe, so that the solvent penetrates into the plant tissue to strengthen the extraction process. After the plant extraction is completed, the control valve on the connecting pipe is opened, and the infiltrated plant fragments are transported to the filter box through the connecting pipe. The extracted plant fragments are filtered through the filter net, and then the plant extract is discharged through the drain pipe;

[0031] S4. When installing the filter box, align the positioning groove on the filter box with the positioning block on the extraction box, and make the positioning groove abut against the positioning block. At this time, the positioning spring is located inside the clamping groove on the extraction box, and then rotate the threaded rod, the threaded rod drives the limiting ball to move to the left, so that the limiting ball pushes the positioning spring outward and tightly abuts against the inside of the clamping groove, thereby completing the installation of the filter box. Similarly, the filter box can be disassembled, so as to facilitate the disassembly and assembly of the filter box and the transportation of the extraction device. At the same time, the positioning structure design of the positioning spring allows a small amount of error between the clamping groove and the positioning spring compared to the alignment connection using a threaded mechanism, and the manufacturing difficulty is relatively low.

[0032] Compared with the prior art, the invention has the following beneficial effects: the hot and cold dual extraction system for plant extraction and the use method thereof:

[0033] 1. A crushing mechanism is provided, and the first servo motor is started. The first servo motor drives the crushing mechanism to rotate through the output shaft, and the crushing mechanism crushes the plant raw materials. After the crushing is completed, the control valve on the conveying pipe is opened, and the plant crushed materials are conveyed to the inside of the extraction box through the conveying pipe, thereby achieving crushing of the plants before extraction and improving the extraction efficiency of the plants;

[0034] 2. A first mixing plate and a second mixing plate are provided, and the second servo motor is started. The second servo motor drives the transmission shaft to rotate through the output shaft, and the transmission shaft drives the first gear to rotate. The first gear drives the second gear and the third gear to rotate. The second gear and the third gear respectively drive the stirring mechanism and the reciprocating screw to rotate, and the analytical agent is added to the extraction box from the cold extraction feed pipe to fully infiltrate the plant fragments. The stirring mechanism stirs and mixes the analytical agent and the plant fragments. The reciprocating screw can drive the movable slider to move left and right, and the movable slider drives the first mixing plate and the second mixing plate to move left and right, so as to turn over the analytical agent and the plant fragments at the bottom of the extraction box, thereby improving the infiltration effect of the analytical agent on the plant fragments, and further improving the extraction efficiency of the plants;

[0035] 3. A positioning spring piece is provided, and the positioning groove on the filter box is aligned with the positioning block on the extraction box, and the positioning groove is abutted against the positioning block. At this time, the positioning spring piece is located inside the clamping groove on the extraction box, and then the threaded rod is rotated, and the threaded rod drives the limiting ball to move to the left, so that the limiting ball pushes the positioning spring piece outward and tightly abuts against the inside of the clamping groove, thereby completing the installation of the filter box. Similarly, the filter box can be disassembled, which is convenient for disassembly and assembly of the filter box and transportation of the extraction device. At the same time, the positioning structure design of the positioning spring piece allows a small amount of error between the clamping groove and the positioning spring piece compared to the alignment connection using a threaded mechanism, and the manufacturing difficulty is relatively low. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 It is a partial cross-sectional structural schematic diagram of the present invention;

[0037] Figure 2 is the front view structure schematic diagram of the present invention;

[0038] Figure 3 For the present invention Figure 1 the enlarged structure schematic diagram at position A in;

[0039] Figure 4 For the present invention Figure 1 the enlarged structure schematic diagram at position B in;

[0040] Figure 5 is the internal structure schematic diagram of the raw material box of the present invention;

[0041] Figure 6 is the structure schematic diagram when the positioning elastic piece of the present invention is disassembled;

[0042] Figure 7 is the structure schematic diagram of the filter box of the present invention;

[0043] Figure 8 is the structure schematic diagram of the raw material box of the present invention;

[0044] Figure 9 is the structure schematic diagram of the positions of the positioning elastic piece and the limiting ball of the present invention;

[0045] Figure 10 is the structure schematic diagram of the positions of the first mixing plate and the second mixing plate of the present invention.

[0046] In the figure: 1. extraction tank; 2. cold extraction feed pipe; 3. hot extraction feed pipe; 4. connecting block; 5. raw material box; 6. feed port; 7. first servo motor; 8. crushing mechanism; 9. conveying pipe; 10. stirring mechanism; 11. reciprocating lead screw; 12. connecting frame; 13. second servo motor; 14. transmission shaft; 15. first gear; 16. second gear; 17. third gear; 18. movable slider; 19. first mixing plate; 20. second mixing plate; 21. guide rod; 22. clamping groove; 23. positioning block; 24. filter box; 25. positioning groove; 26. connecting pipe; 27. control valve; 28. filter screen; 29. connecting plate; 30. positioning elastic piece; 31. threaded rod; 32. limiting ball. Detailed implementation manners

[0047] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts belong to the scope of protection of the present invention.

[0048] Please refer to Figures 1 - 10, the present invention provides a technical solution: a cold and hot double extraction system for plant extraction and its usage method, including an extraction tank 1, a cold extraction feed pipe 2, a hot extraction feed pipe 3, a connecting block 4, a raw material tank 5, a feed port 6, a first servo motor 7, a crushing mechanism 8, a conveying pipe 9, a stirring mechanism 10, a reciprocating lead screw 11, a connecting frame 12, a second servo motor 13, a transmission shaft 14, a first gear 15, a second gear 16, a third gear 17, a movable slider 18, a first mixing plate 19, a second mixing plate 20, a guide rod 21, a clamping groove 22, a positioning block 23, a filtering tank 24, a positioning groove 25, a connecting pipe 26, a control valve 27, a filter screen 28, a connecting plate 29, a positioning elastic piece 30, a threaded rod 31 and a limiting ball 32. On the left and right sides of the upper surface of the extraction tank 1, a cold extraction feed pipe 2 and a hot extraction feed pipe 3 are respectively installed. The cold extraction feed pipe 2 and the hot extraction feed pipe 3 are respectively communicated with an analytical agent and a boiling solvent. The analytical agent is added into the extraction tank 1 from the cold extraction feed pipe 2 to infiltrate the plant scraps. After the infiltration of the plant scraps is completed, the boiling solvent is put into the extraction tank 1 through the hot extraction feed pipe 3, so that the solvent penetrates into the interior of the plant tissue to strengthen the extraction process. Above the extraction tank 1, there is a raw material tank 5. The raw material tank 5 is connected to the extraction tank 1 through a connecting block 4. And on the left and right sides of the upper surface of the raw material tank 5, feed ports 6 are opened. A first servo motor 7 is installed on the upper surface of the raw material tank 5. The plants to be extracted are continuously put into the raw material tank 5 through the feed ports 6 for crushing. The lower surface of the first servo motor 7 is installed with a crushing mechanism 8 through an output shaft. And the inner bottom surface of the raw material tank 5 is designed with an inclined surface structure. The first servo motor 7 is started. The first servo motor 7 drives the crushing mechanism 8 to rotate through the output shaft. The crushing mechanism 8 crushes the plant raw materials. After the crushing is completed, the control valve 27 on the conveying pipe 9 is opened. The plant scraps are conveyed into the interior of the extraction tank 1 through the conveying pipe 9. And the lower part of the raw material tank 5 is communicated with the interior of the extraction tank 1 through the conveying pipe 9;

[0049] Inside the extraction tank 1, a stirring mechanism 10 and a reciprocating lead screw 11 are sequentially arranged from top to bottom. A driving mechanism is installed on the left side of the extraction tank 1. The driving mechanism includes a connecting frame 12, a second servo motor 13, a transmission shaft 14, and a first gear 15. The connecting frame 12 is installed on the left side of the extraction tank 1, and the second servo motor 13 is installed on the left side of the connecting frame 12. The right side of the second servo motor 13 is installed with the transmission shaft 14 through the output shaft, and the first gear 15 is installed on the transmission shaft 14. When the second servo motor 13 is started, the second servo motor 13 drives the transmission shaft 14 to rotate through the output shaft, the transmission shaft 14 drives the first gear 15 to rotate, the first gear 15 drives the second gear 16 and the third gear 17 to rotate, the second gear 16 and the third gear 17 respectively drive the stirring mechanism 10 and the reciprocating lead screw 11 to rotate. The first gear 15 meshes with both the second gear 16 and the third gear 17, and the left sides of the stirring mechanism 10 and the reciprocating lead screw 11 are rotatably connected to the extraction tank 1. Sealing gaskets are provided at the joints of the stirring mechanism 10, the reciprocating lead screw 11 and the extraction tank 1 to improve the sealing performance of the extraction tank 1, thereby ensuring the extraction effect of the plants inside the extraction tank 1. The second gear 16 and the third gear 17 are respectively installed on the stirring mechanism 10 and the reciprocating lead screw 11. A movable slider 18 is installed on the reciprocating lead screw 11, and a first mixing plate 19 and a second mixing plate 20 are respectively installed on the upper and lower sides of the movable slider 18. The first mixing plate 19 and the second mixing plate 20 are designed in a reverse arc structure, and a guide rod 21 penetrates through the second mixing plate 20. The left and right ends of the guide rod 21 are connected to the inner wall of the extraction tank 1. The guide rod 21 is parallel to the reciprocating lead screw 11. The guide rod 21 plays a guiding role in the left and right movement of the second mixing plate 20, thereby playing a guiding role in the movable slider 18 and the first mixing plate 19, so that the first mixing plate 19 and the second mixing plate 20 are more stable during the left and right movement. There are gaps between the front and rear ends of the first mixing plate 19 and the second mixing plate 20 and the inner wall of the extraction tank 1. During the left and right movement of the first mixing plate 19 and the second mixing plate 20, the resolving agent and the plant scraps at the bottom of the extraction tank 1 can be turned over, thereby improving the wetting effect of the resolving agent on the plant scraps and improving the extraction efficiency of the plants;

[0050] On the right side of the extraction tank 1, a clamping groove 22 is provided, and a positioning block 23 is installed on the right side of the extraction tank 1. A filter tank 24 is arranged on the right side of the extraction tank 1. A positioning groove 25 is provided on the left side of the filter tank 24. The center line of the positioning groove 25 coincides with the center line of the positioning block 23. The filter tank 24 and the extraction tank 1 are connected by a connecting pipe 26. Control valves 27 are installed on both the connecting pipe 26 and the conveying pipe 9. The connecting pipe 26 and the filter tank 24 are of a detachable connection structure. After the infiltration of the plant scraps is completed, boiling solvent is put into the extraction tank 1 through the hot extraction feed pipe 3, so that the solvent penetrates into the interior of the plant tissue to strengthen the extraction process. After the plant extraction is completed, the control valve 27 on the connecting pipe 26 is opened, and the infiltrated plant scraps are conveyed to the filter tank 24 through the connecting pipe 26. The extracted plant scraps are filtered by the filter screen 28, and then the plant extract is discharged through the drain pipe. A filter screen 28 is vertically installed inside the filter tank 24;

[0051] A connecting plate 29 is installed on the left side of the filter tank 24. Positioning elastic pieces 30 are symmetrically installed on the upper, lower, left and right sides of the connecting plate 29. A threaded rod 31 is installed on the connecting plate 29, and a limiting ball 32 is installed at the left end of the threaded rod 31. The limiting ball 32 is located between the two positioning elastic pieces 30. Arc-shaped grooves are provided on the upper and lower surfaces of the positioning elastic pieces 30. A clamping block is installed in the clamping groove 22, and the clamping block can be clamped with the arc-shaped groove on the reverse side of the positioning elastic piece 30. When installing the filter tank 24, align the positioning groove 25 on the filter tank 24 with the positioning block 23 on the extraction tank 1 and make the positioning groove 25 abut against the positioning block 23. At this time, the positioning elastic piece 30 is located inside the clamping groove 22 on the extraction tank 1. Then rotate the threaded rod 31, and the threaded rod 31 drives the limiting ball 32 to move leftward, so that the limiting ball 32 pushes the positioning elastic piece 30 outwards and tightly abuts against the inside of the clamping groove 22, thus completing the installation of the filter tank 24. Similarly, the filter tank 24 can be disassembled, which is convenient for the disassembly and assembly of the filter tank 24 and the transportation of the extraction device. At the same time, compared with the alignment connection using a threaded mechanism, the positioning structure design of the positioning elastic piece 30 allows a small amount of error between the clamping groove 22 and the positioning elastic piece 30, and the manufacturing difficulty is relatively low.

[0052] The usage method specifically includes the following steps:

[0053] S1. Continuously put the plants to be extracted into the raw material tank 5 through the feed port 6, start the first servo motor 7, and the first servo motor 7 drives the crushing mechanism 8 to rotate through the output shaft. The crushing mechanism 8 crushes the plant raw materials. After the crushing is completed, open the control valve 27 on the conveying pipe 9, and the plant scraps are conveyed to the inside of the extraction tank 1 through the conveying pipe 9;

[0054] S2. Start the second servo motor 13. The second servo motor 13 drives the transmission shaft 14 to rotate through the output shaft. The transmission shaft 14 drives the first gear 15 to rotate. The first gear 15 drives the second gear 16 and the third gear 17 to rotate. The second gear 16 and the third gear 17 respectively drive the stirring mechanism 10 and the reciprocating lead screw 11 to rotate. Add the analytical agent into the extraction tank 1 from the cold extraction feed pipe 2 to fully soak the plant scraps. The stirring mechanism 10 stirs and mixes the analytical agent and the plant scraps. The reciprocating lead screw 11 can drive the movable slider 18 to move left and right. The movable slider 18 drives the first mixing plate 19 and the second mixing plate 20 to move left and right, so as to turn over the analytical agent and the plant scraps at the bottom of the extraction tank 1, thereby improving the soaking effect of the analytical agent on the plant scraps and improving the extraction efficiency of the plants.

[0055] S3. After the soaking of the plant scraps is completed, pour the boiling solvent into the extraction tank 1 through the hot extraction feed pipe 3 to make the solvent penetrate into the plant tissue and strengthen the extraction process. After the plant extraction is completed, open the control valve 27 on the connecting pipe 26. The soaked plant scraps are transported to the filter tank 24 through the connecting pipe 26. The extracted plant scraps are filtered through the filter screen 28, and then the plant extraction solution can be discharged through the drain pipe.

[0056] S4. When installing the filter tank 24, align the positioning groove 25 on the filter tank 24 with the positioning block 23 on the extraction tank 1 and make the positioning groove 25 abut against the positioning block 23. At this time, the positioning elastic piece 30 is located inside the clamping groove 22 on the extraction tank 1. Then rotate the threaded rod 31. The threaded rod 31 drives the limit ball 32 to move leftward, so that the limit ball 32 pushes the positioning elastic piece 30 outwards and tightly abuts against the inside of the clamping groove 22, thereby completing the installation of the filter tank 24. Similarly, the filter tank 24 can be disassembled, which is convenient for disassembling and assembling the filter tank 24 and transporting the extraction device. At the same time, compared with using a threaded mechanism for alignment and connection, the positioning structure design of the positioning elastic piece 30 allows a small amount of error between the clamping groove 22 and the positioning elastic piece 30, and the manufacturing difficulty is relatively low.

[0057] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art.

[0058] Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A hot and cold dual extraction system for plant extraction, comprising an extraction box (1), a raw material box (5) and a filter box (24), characterized in that: A cold extraction feed pipe (2) and a hot extraction feed pipe (3) are respectively installed on the left and right sides of the upper surface of the extraction box (1); a raw material box (5) is arranged above the extraction box (1), and the lower part of the raw material box (5) is connected to the interior of the extraction box (1) through a conveying pipe (9); The extraction box (1) is provided with a stirring mechanism (10) and a reciprocating screw (11) in sequence from top to bottom; a driving mechanism is installed on the left side of the extraction box (1); a second gear (16) and a third gear (17) are installed on the stirring mechanism (10) and the reciprocating screw (11) respectively; a movable slider (18) is installed on the reciprocating screw (11); and a first mixing plate (19) and a second mixing plate (20) are installed on the upper and lower sides of the movable slider (18) respectively; A clamping groove (22) is provided on the right side of the extraction box (1), and a positioning block (23) is installed on the right side of the extraction box (1). A filter box (24) is provided on the right side of the extraction box (1), and a filter screen (28) is vertically installed inside the filter box (24); A connecting plate (29) is installed on the left side of the filter box (24), and positioning springs (30) are symmetrically installed on the left and right sides and the upper and lower sides of the connecting plate (29). A threaded rod (31) is installed on the connecting plate (29), and a limiting ball (32) is installed on the left end of the threaded rod (31).

2. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The cold extraction feed pipe (2) and the hot extraction feed pipe (3) are respectively connected to the analytical agent and the boiling solvent.

3. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The raw material box (5) is connected to the extraction box (1) via a connecting block (4), and feed ports (6) are provided on both left and right sides of the upper surface of the raw material box (5), and a first servo motor (7) is installed on the upper surface of the raw material box (5).

4. The hot and cold dual extraction system for plant extraction according to claim 3, characterized in that: A crushing mechanism (8) is installed on the lower surface of the first servo motor (7) via an output shaft, and the inner bottom surface of the raw material box (5) is designed as an inclined structure.

5. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The driving mechanism comprises a connecting frame (12), a second servo motor (13), a transmission shaft (14) and a first gear (15); the connecting frame (12) is installed on the left side of the extraction box (1), and the second servo motor (13) is installed on the left side of the connecting frame (12); the transmission shaft (14) is installed on the right side of the second servo motor (13) via an output shaft, and the first gear (15) is installed on the transmission shaft (14).

6. The hot and cold dual extraction system for plant extraction according to claim 5, characterized in that: The first gear (15) is meshed with the second gear (16) and the third gear (17), and the stirring mechanism (10) and the left side of the reciprocating screw (11) are rotationally connected to the extraction box (1), and a sealing gasket is provided at the connection between the stirring mechanism (10), the reciprocating screw (11) and the extraction box (1).

7. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The first mixing plate (19) and the second mixing plate (20) are designed to have reverse arc-shaped structures, and a guide rod (21) passes through the second mixing plate (20), the left and right ends of the guide rod (21) are connected to the inner wall of the extraction box (1), and the guide rod (21) and the reciprocating screw rod (11) are parallel to each other.

8. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: A positioning groove (25) is provided on the left side of the filter box (24), the center line of the positioning groove (25) coincides with the center line of the positioning block (23), and the filter box (24) is connected to the extraction box (1) via a connecting pipe (26), a control valve (27) is installed on the connecting pipe (26) and the delivery pipe (9), and a detachable connection structure is formed between the connecting pipe (26) and the filter box (24).

9. The hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The limiting ball (32) is located between the two positioning spring pieces (30), and the upper and lower surfaces of the positioning spring pieces (30) are both provided with arc grooves. A clamping block is installed in the clamping groove (22), and the clamping block can be clamped with the arc groove on the opposite side of the positioning spring piece (30).

10. The method for using the hot and cold dual extraction system for plant extraction according to claim 1, characterized in that: The method of use specifically comprises the following steps: S1, continuously feeding the plants to be extracted into the raw material box (5) through the feed port (6), starting the first servo motor (7), the first servo motor (7) drives the crushing mechanism (8) to rotate through the output shaft, the crushing mechanism (8) crushes the plant raw materials, after the crushing is completed, the control valve (27) on the conveying pipe (9) is opened, and the plant crushed materials are conveyed to the inside of the extraction box (1) through the conveying pipe (9); S2, starting the second servo motor (13), the second servo motor (13) drives the transmission shaft (14) to rotate through the output shaft, the transmission shaft (14) drives the first gear (15) to rotate, the first gear (15) drives the second gear (16) and the third gear (17) to rotate, the second gear (16) and the third gear (17) respectively drive the stirring mechanism (10) and the reciprocating screw (11) to rotate, add the analytical agent from the cold extraction feed pipe (2) into the extraction box (1), fully infiltrate the plant fragments, the stirring mechanism (10) stirs and mixes the analytical agent and the plant fragments, the reciprocating screw (11) can drive the movable slider (18) to move left and right, the movable slider (18) drives the first mixing plate (19) and the second mixing plate (20) to move left and right, thereby turning the analytical agent and the plant fragments at the bottom of the extraction box (1), thereby improving the infiltration effect of the analytical agent on the plant fragments and improving the extraction efficiency of the plants; S3, after the infiltration of the plant fragments is completed, a boiling solvent is added into the extraction box (1) through the hot extraction feed pipe (3), so that the solvent penetrates into the plant tissue and strengthens the extraction process. After the plant extraction is completed, the control valve (27) on the connecting pipe (26) is opened, and the infiltrated plant fragments are transported to the filter box (24) through the connecting pipe (26), and the extracted plant fragments are filtered through the filter screen (28), and then the plant extract is discharged through the drain pipe; S4. When installing the filter box (24), align the positioning groove (25) on the filter box (24) with the positioning block (23) on the extraction box (1), and make the positioning groove (25) abut against the positioning block (23). At this time, the positioning spring piece (30) is located inside the clamping groove (22) on the extraction box (1). Then, the threaded rod (31) is rotated, and the threaded rod (31) drives the limiting ball (32) to move leftward, so that the limiting ball (32) pushes the positioning spring piece (30) outward and tightly abuts against the inside of the clamping groove (22), thereby completing the installation of the filter box (24). Similarly, the filter box (24) can be disassembled, so that it is convenient to disassemble and assemble the filter box (24) and to transport the extraction device. At the same time, compared with the alignment connection using a threaded mechanism, the positioning structure design of the positioning spring piece (30) can allow a small amount of error between the clamping groove (22) and the positioning spring piece (30), and the manufacturing difficulty is relatively low.

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