Plant extract high-efficiency extraction device

Abstract

The application discloses a kind of plant extract efficient extraction device, it is related to plant extraction technical field, including: extraction shell, top opening processing cavity is formed in it, and the inner side wall of processing cavity is the inclined wall surface of upward inclination, so that processing cavity forms the flared configuration of upper wide lower narrow;The inclined wall surface side of the processing cavity bottom is connected and is linked with the flow guide discharge channel extending downwardly inclined;Multi-stage extraction mechanism, including slidingly assembled in processing cavity and with the extrusion partition opposite inclined wall surface, and slidingly assembled on the upper portion of extrusion partition dynamic briquetting;The dynamic briquetting and inclined wall surface between from top to bottom are sequentially formed with mutually communicating feeding area and one-stage extrusion extraction area.The application adopts two-stage gradient extrusion structure, and rough crushing and most essential oil components are preliminarily extracted by one-stage extrusion rubbing, and then the depth of residual essential oil components in fiber is precipitated by two-stage pressure extraction.

Description

Technical Field

[0001] This invention relates to the field of plant extraction technology, specifically to a high-efficiency plant extract extraction device. Background Technology

[0002] Plant essential oils are secondary metabolites produced during plant growth. They are mostly aromatic and have traditionally been used as flavoring and fragrance agents. Modern research has found that plant essential oils have a variety of biological activities, such as antibacterial, anti-inflammatory, insecticidal, antioxidant, cardiovascular disease prevention and treatment, and immune regulation. They can be applied in fields such as healthcare, food industry, cosmetics, and agriculture.

[0003] A search revealed Chinese invention patent CN118667612B, which discloses a plant essential oil extraction device. This device includes a pressing and filtering assembly and a distillation assembly. The pressing and filtering assembly employs a pressing plate structure with an eccentric rotating shaft and a spring-loaded telescopic plate inside the pressing cylinder. During operation, a motor drives the rotating shaft and the pressing plate to rotate. The material is squeezed by the spatial changes created between the telescopic plate and the cylinder wall. The squeezed liquid flows out through a bottom filter screen, while the residue is discharged from the outlet to a vibrating filter plate below. A cam mechanism vibrates the filter plate to prevent clogging. The pressed residue can be collected and transferred to the distillation assembly for secondary extraction.

[0004] However, the aforementioned existing technologies still have the following shortcomings: Firstly, the extrusion process relies on the spatial changes formed by the rotational eccentric motion, and the extrusion path is relatively fixed. For different plant materials with different fiber characteristics, the extrusion, shearing and kneading forces and methods are relatively simple, making it difficult to achieve targeted flexible processing, which may result in some materials being insufficiently or excessively crushed.

[0005] Secondly, the pressure gradient generated by rotary pressing is discontinuous, and the pressure is mainly concentrated in the radial direction, lacking the ability to apply pressure in depth along the axial direction, which limits the extraction effect on the effective components remaining inside the fibrous tissue. Summary of the Invention

[0006] The purpose of this invention is to provide a highly efficient plant extract extraction device to solve the problems mentioned in the background art.

[0007] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: This invention provides a high-efficiency plant extract extraction device, comprising: The shell is extracted, which has a processing cavity with an open top. One inner wall of the processing cavity is an upwardly sloping wall, making the processing cavity a wide-mouthed structure that is wider at the top and narrower at the bottom. The bottom wall of the processing cavity is connected to and connected to a downwardly sloping drainage channel. A multi-stage extraction mechanism includes a compression baffle that is slidably mounted in the processing chamber and faces the inclined wall, and a dynamic pressing block that is slidably mounted on the upper part of the compression baffle; a feeding area and a primary compression extraction area are formed between the dynamic pressing block and the inclined wall from top to bottom; and a secondary pressurized extraction area that communicates with the primary compression extraction area is formed between the compression baffle below the dynamic pressing block and the inclined wall. A porous separation baffle is arranged parallel to and inside the flow discharge channel. One end of the baffle extends into the processing chamber and is fixedly connected to the bottom of the extrusion baffle. The other end of the baffle extends to the outlet end of the flow discharge channel. The baffle divides the flow discharge channel into an upper solid waste channel and a lower essential oil collection channel. The dual-drive system includes a transverse drive unit for driving the extrusion partition to reciprocate to move closer to or away from the inclined wall, and a vertical drive unit for driving the dynamic pressure block to reciprocate up and down relative to the main extrusion plate in the vertical direction.

[0008] Furthermore, the extrusion baffle divides the processing chamber into a drive component mounting chamber and a plant extraction chamber that are not interconnected. The plant extraction chamber is further divided by the dynamic pressure block into a feeding area, a primary extrusion extraction area, and a secondary pressurization extraction area.

[0009] Furthermore, the bottom surface of the processing chamber is a bottom slope with the same inclination as the lower wall of the flow discharge channel, and the bottom slope is smoothly connected to the lower wall of the flow discharge channel; the outlet end of the flow discharge channel is provided with a protrusion with a gradually narrowing cross section, and a conical collection groove communicating with the essential oil collection channel is formed inside the protrusion, and a collection tube is provided at the bottom of the tip of the conical collection groove.

[0010] Furthermore, the inner sidewalls of the processing chamber, except for the inclined wall surface, are all vertical walls. The dynamic pressing block includes two mating end faces that fit with the two vertical walls of the processing chamber, a sliding wall surface that fits with the extrusion partition, an inclined material guiding top surface, an inclined extrusion side surface, and a horizontal extrusion bottom surface. The material feeding area is formed between the inclined material guiding top surface and the inclined wall surface. The inclined extrusion side surface is parallel to the inclined wall surface, and the primary extrusion extraction area of ​​equal width is formed between the inclined extrusion side surface and the inclined wall surface.

[0011] Furthermore, the inclined extrusion side is uniformly provided with first oblique teeth, the other parts of the inclined wall surface except for the feeding area are uniformly provided with second conical teeth, and the extrusion partition between the dynamic pressure block and the porous separation partition is uniformly provided with third oblique teeth near the inclined wall surface.

[0012] Furthermore, the side of the extrusion partition away from the inclined wall is slidably connected to the extraction shell via a directional sliding assembly. The directional sliding assembly includes a fixed plate fixed in the middle of the extrusion partition and four guide columns fixed at the four corners of the fixed plate and parallel to the flow discharge channel. The ends of the four guide columns away from the fixed plate penetrate the extraction shell and slide in cooperation with it. The ends of the four guide columns away from the fixed plate are connected to a limit plate.

[0013] Furthermore, the lateral drive unit is used to drive the extrusion partition to slide between the extrusion end position and the retraction end position; when the extrusion partition is in the extrusion end position, the extrusion partition contacts the bottom side of the inclined wall; when the extrusion partition is in the retraction end position, there is a preset maximum feeding gap between the extrusion partition and the bottom side of the inclined wall.

[0014] Furthermore, the dual-drive system is configured such that: when the lateral drive unit drives the extrusion partition to move from the retraction end position to the extrusion end position, the vertical drive unit simultaneously drives the dynamic pressure block to move from the upper end position to the lower end position; when the lateral drive unit drives the extrusion partition to move from the extrusion end position to the retraction end position, the vertical drive unit simultaneously drives the dynamic pressure block to move from the lower end position to the upper end position.

[0015] Furthermore, the lateral drive unit is disposed within the drive component mounting cavity. The lateral drive unit includes a cover plate mounted on the top of the extraction housing, a bracket fixed to the bottom of the cover plate, an eccentric shaft rotatably mounted on the bracket and perpendicular to the bottom inclined plane, a transmission slider rotatably sleeved on the eccentric shaft, and a connecting support fixed to the fixing plate. The connecting support has a groove perpendicular to the eccentric shaft, and the transmission slider is slidably disposed in the groove to convert the circumferential motion of the eccentric shaft into the lateral motion of the extrusion partition. A drive motor that is drively connected to the eccentric shaft is fixedly mounted at the bottom of the bracket.

[0016] Furthermore, the upper sides of the extrusion partition are symmetrically provided with vertical through slots. The vertical drive unit includes a connecting block that is slidably disposed in the vertical through slot and fixedly connected to the dynamic pressure block, a guide bar that is horizontally disposed and fixed to the end of the two connecting blocks away from the dynamic pressure block, and guide groove assemblies that are respectively fixed to the two opposite inner walls of the processing cavity. The guide groove assembly is provided with a guide groove. The two ends of the guide bar extend into the corresponding guide groove and are slidably connected to the guide groove. The guide groove is inclined upward from the end near the inclined wall to the end away from the inclined wall.

[0017] Compared with existing technologies, one or more of the above technical solutions have the following beneficial effects: 1. This invention employs a two-stage gradient extrusion structure. The first stage of extrusion and kneading achieves coarse crushing of the material and preliminary extraction of most essential oil components. The second stage of pressurized extraction further extracts residual essential oil components from within the fibers. Combined with a zoned, differentiated composite tooth surface design and the oblique composite shearing and extrusion action of the dynamic pressing blocks, it can comprehensively knead and tear the plant fiber tissue, preventing localized compaction and caking of the material.

[0018] 2. The dynamic synchronous solid-liquid separation mechanism of the present invention features a porous separation partition that reciprocates synchronously with the extrusion partition. The resulting continuous micro-vibration can effectively prevent plant fibers from clogging the filter pores, while achieving a separation effect of extrusion and separation, thus avoiding secondary adsorption of the extract by the waste residue.

[0019] 3. This invention achieves automated continuous operation of the entire process of feeding, extrusion, kneading, separation, and slag discharge through synchronous linkage control of dual drive systems, without the need for manual intervention.

[0020] 4. This invention completely isolates the material handling area from the power drive area through a full-circumference sliding seal design of the extrusion partition, and all power transmission components are encapsulated in independent drive component mounting cavities. All components in contact with materials are made of food-grade stainless steel that meets national standards.

[0021] 5. This device can flexibly adjust operating parameters such as extrusion stroke, motion frequency, and dynamic pressing block upper and lower end positions through a central controller. At the same time, it can replace porous separation baffles of different materials and pore sizes according to the characteristics of the extract, and can adapt to plant raw materials with different fiber characteristics, hardness, and moisture content.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit the invention. Attached Figure Description

[0023] The accompanying drawings, which form part of this invention, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a top view of the structure of the present invention; Figure 3 yes Figure 2 A schematic diagram of the AA-direction structure; Figure 4 This is a schematic diagram of the first-view structure after the shell of the present invention has been removed; Figure 5This is a schematic diagram of the second-view structure after the shell of the present invention has been removed; Figure 6 This is a schematic diagram of the overall cross-sectional three-dimensional structure of the present invention.

[0025] In the picture: 1-Extraction shell; 11-Processing chamber; 111-Driver mounting chamber; 112-Plant extraction chamber; 113-Bottom slope; 12-Sloping wall surface; 121-Second conical tooth; 13-Guiding discharge channel; 131-Solid waste channel; 132-Extractant collection channel; 14-Protrusion; 15-Conical collection groove; 16-Collection pipe; 17-Vertical wall surface; 21-Extrusion baffle; 211-Third sloping tooth; 212-Vertical through groove; 22-Dynamic pressing block; 221-Mating end face; 222-Sliding wall surface; 223-Inclined guide top surface; 224-Inclined extrusion Side view; 225-Horizontal extrusion bottom surface; 226-First helical tooth; 23-Feeding area; 24-First-stage extrusion extraction area; 25-Second-stage pressurization extraction area; 3-Porous separation partition; 41-Transverse drive unit; 411-Cover plate; 412-Bracket; 413-Eccentric shaft; 414-Transmission slider; 415-Connecting support; 4151-Slide groove; 42-Vertical drive unit; 421-Connecting block; 422-Guide crossbar; 423-Guide groove assembly; 4231-Guide groove; 5-Oriented sliding assembly; 51-Fixing plate; 52-Guide column; 53-Limiting plate. Detailed Implementation

[0026] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort should fall within the scope of protection of the present application.

[0027] Please see Figures 1-6 The present invention provides a high-efficiency plant extract extraction device, which consists of four core parts: an extraction shell 1, a multi-stage essential oil extraction mechanism, a porous separation partition 3, and a dual drive system.

[0028] The extraction shell 1 is made of metal materials that meet food hygiene standards and is welded together. Its inner wall is polished to effectively prevent material residue and scaling, ensuring the hygiene and safety of the essential oil extraction process.

[0029] The interior of the housing 1 forms a processing chamber 11 with an open top. One of the inner walls of the processing chamber 11 is configured as an upwardly sloping wall surface 12, giving the processing chamber 11 an overall flared shape that is wider at the top and narrower at the bottom. This sloping wall surface 12 provides stable reaction force support for material extrusion on the one hand, and utilizes gravity to achieve automatic downward conveying of the material on the other hand.

[0030] The bottom of the processing chamber 11 is connected to and connected to a downwardly inclined drainage channel 13 on the side near the inclined wall 12. This channel is used to discharge the essential oil and plant waste after extraction, ensuring that the device can continuously and uninterruptedly perform essential oil extraction operations.

[0031] The multi-stage essential oil extraction mechanism, as the core functional component of this device, plays a crucial role in crushing plant raw materials and extruding essential oil components. It includes an extrusion partition 21 and a dynamic pressure block 22. The extrusion partition 21 is a vertically arranged plate. Its two sides are slidably sealed to the two opposing vertical walls 17 of the processing chamber 11, and its bottom is slidably sealed to the bottom surface of the processing chamber 11. The extrusion partition 21 is slidably assembled in the processing chamber 11 and is arranged opposite to the inclined wall 12.

[0032] The dynamic pressing block 22 is slidably assembled in the upper area of ​​the extrusion partition 21 and can slide back and forth along the vertical direction of the extrusion partition 21. Its extrusion working surface can be designed to adapt to the physical properties such as fiber characteristics and hardness of different essential oil raw materials (such as citrus peel, petals, leaves, etc.) to enhance the kneading and crushing effect.

[0033] From top to bottom, a feeding area 23 and a primary extrusion extraction area 24 are formed between the dynamic pressing block 22 and the inclined wall surface 12. A secondary pressurization extraction area 25, which is connected to the primary extrusion extraction area 24, is formed between the extrusion baffle 21 below the dynamic pressing block 22 and the inclined wall surface 12.

[0034] The feeding zone 23 is used to receive pre-treated essential oil raw materials fed in from the top opening. The first-stage extrusion extraction zone 24 is used to perform preliminary extrusion and kneading of the raw materials to squeeze out most of the essential oil components. The second-stage pressure extraction zone 25 is used to perform deep high-pressure extrusion on the raw materials after preliminary extraction to fully extract the essential oil components remaining in the plant fiber tissue. Through the progressive action of the two-stage gradient pressure, the maximum extraction of plant essential oils is achieved.

[0035] To achieve immediate and efficient separation of the oil and residue phases during essential oil extraction, a porous separation baffle 3 parallel to its extension direction is installed in the guide discharge channel 13. This porous separation baffle 3 is a rigid component, and different materials such as laser-perforated metal plates or special sintered filter screens can be selected according to the characteristics of the essential oil. One end of it is fixedly connected to the bottom of the extrusion baffle 21, so that the two can reciprocate synchronously; the other end extends to the outlet end of the guide discharge channel 13.

[0036] The porous separation partition 3 divides the drainage channel 13 into two completely independent channels: the upper channel is the solid waste channel 131, which is used to transport the fully squeezed plant cake; the lower channel is the essential oil collection channel 132, which is used to collect and guide the squeezed-out clarified plant essential oil.

[0037] In this invention, the porous separation partition 3 moves synchronously with the extrusion partition 21, and generates continuous micro-vibration during the movement, which accelerates the discharge of waste residue and prevents essential oil from lingering on the surface of the separation plate.

[0038] The dual-drive system includes a horizontal drive unit 41 and a vertical drive unit 42, providing power support for the entire device. The output end of the horizontal drive unit 41 is connected to the extrusion partition 21, driving the extrusion partition 21 to reciprocate towards the inclined wall 12 to adjust the distance between the extrusion partition 21 and the inclined wall 12, achieving different degrees of extrusion. The output end of the vertical drive unit 42 is connected to the dynamic pressure block 22, driving the dynamic pressure block 22 to reciprocate up and down relative to the extrusion partition 21 in the vertical direction, realizing vertical pushing, extrusion, and additional pressurization of the material.

[0039] The motion parameters of the horizontal drive unit 41 and the vertical drive unit 42 can be programmably coordinated and controlled by the central controller. Based on the physical characteristics of different essential oil raw materials and the requirements for essential oil extraction, the operating parameters such as the extrusion stroke, extrusion frequency, lifting speed, and motion phase difference can be flexibly adjusted to achieve the best essential oil extraction effect.

[0040] This invention utilizes a dual-drive system to enable the extrusion baffle 21 and dynamic pressure block 22 to work together to complete complex compound movements, thus organically combining the extrusion, kneading, and pushing actions during the essential oil extraction process and significantly improving extraction efficiency.

[0041] The working process of this device can be divided into four continuous stages: feeding, primary extrusion and kneading, secondary pressurization extraction, and oil residue separation and discharge. The entire essential oil extraction process does not require manual intervention and can achieve fully automated continuous production.

[0042] The pre-treated essential oil raw materials, including those that have undergone washing and crushing, are evenly fed into the feeding zone 23 through the opening at the top of the extraction shell 1. The dual-drive system is activated: the horizontal drive unit 41 drives the extrusion baffle 21 to reciprocate towards the inclined wall 12, while the vertical drive unit 42 simultaneously drives the dynamic pressure block 22 to reciprocate vertically along the extrusion baffle 21. Under the combined action of the dynamic pressure block 22 and its own gravity, the material continuously and stably enters the primary extrusion extraction zone 24 from the feeding zone 23.

[0043] During this process, the dynamic pressure block 22 moves laterally in sync with the extrusion partition 21, while simultaneously rising and falling vertically, forming a unique composite motion trajectory. This causes the gap in the primary extrusion extraction zone 24 to exhibit periodic dynamic changes during the extrusion process. When the gap decreases, the dynamic pressure block 22, in conjunction with the inclined wall 12, applies uniform extrusion and shearing forces to the material, allowing the essential oil components inside the plant to be quickly extruded. When the gap increases, the fresh raw materials from the feeding zone 23 can be smoothly replenished to the primary extrusion extraction zone 24. At the same time, the material that has undergone preliminary extrusion moves downward into the secondary pressurization extraction zone 25 under the continuous pushing of the dynamic pressure block 22 and its own gravity.

[0044] When the material enters the secondary pressurized extraction zone 25, the gap in this zone is significantly smaller than that in the primary extrusion extraction zone 24. The material is subjected to extrusion pressure much greater than that in the primary extraction. At the same time, the vertical movement of the dynamic pressure block 22 will also apply additional vertical pressure to the plant material in the secondary pressurized extraction zone 25, forming a multi-directional compound pressurization effect. This allows the essential oil components that remain inside the plant after the initial extraction to be fully squeezed out, thereby significantly improving the overall essential oil extraction rate.

[0045] During the extraction process, the essential oils produced flow downwards under gravity into the guide and discharge channel 13, pass through the pores of the porous separation baffle 3 into the lower essential oil collection channel 132, and flow along the inclined channel to the outlet for collection. Solid plant waste is blocked by the porous separation baffle 3 in the upper solid waste channel 131. Pushed downwards by the reciprocating motion of the porous separation baffle 3 and its own gravity, it continues to flow down the channel and is discharged from the outlet. The entire essential oil extraction, separation, and waste discharge process is continuous and uninterrupted.

[0046] This invention employs a two-stage gradient extrusion extraction structure, combined with the composite motion trajectory of the dynamic pressing block 22, to achieve integrated extrusion, kneading, and pushing of essential oil raw materials. This significantly improves the extraction rate of plant essential oils compared to traditional pressing equipment, while avoiding the problems of excessive material crushing and excessively high oil content in waste residue caused by single high-pressure extrusion, thus reducing essential oil loss.

[0047] In this embodiment, the extrusion partition 21 is made of high-strength, thickened food-grade stainless steel sheet with a hardened surface, exhibiting excellent resistance to deformation and wear. Its two side edges form a full-circumferential sliding seal with the two opposing vertical walls 17 of the processing chamber 11 via embedded food-grade silicone rubber sealing strips (not shown). Its bottom achieves a dynamic line seal with the bottom surface of the processing chamber 11 via a wear-resistant polytetrafluoroethylene lip sealing ring (not shown). During its high-speed reciprocating motion, the extrusion partition 21 divides the processing chamber 11 into two completely independent chambers, one on the left and one on the right. The side closest to the inclined wall 12 is the plant essential oil extraction chamber 112, and the other side is the drive component mounting chamber 111. All drive components are encapsulated within the drive component mounting chamber 111, while the plant essential oil extraction chamber 112 is a completely pure material processing area, and the dynamic pressure block 22 moves only within the plant essential oil extraction chamber 112.

[0048] In this embodiment, the bottom surface of the processing chamber 11 is configured as a bottom slope 113, and the inclination angle of the bottom slope 113 is consistent with the inclination angle of the lower wall surface of the guide discharge channel 13. Simultaneously, the bottom slope 113 of the processing chamber 11 and the lower wall surface of the guide discharge channel 13 are designed as an integrated structure with a smooth, rounded transition. This structural design allows the essential oil squeezed out within the processing chamber 11 to flow smoothly along the inclined path of the guide discharge channel 13 under its own gravity, preventing essential oil accumulation.

[0049] Furthermore, the outlet end of the guide discharge channel 13 is integrally formed with a protruding part 14 with a gradually narrowing cross-section. The protruding part 14 has an overall outward convex and converging structure, gradually narrowing from the side wall of the channel towards the center, which can accurately gather and collect the diverted essential oil. A conical collection groove 15 is formed inside the protruding part 14. The conical collection groove 15 is connected to the lower essential oil collection channel. The pure essential oil that has been filtered and separated by the porous separation partition 3 can be completely introduced into the conical collection groove 15 to achieve centralized collection of essential oil.

[0050] A collection tube 16 is vertically installed at the lowest point of the conical collection groove 15. Utilizing the flow-gathering characteristics of the conical structure (wider at the top and narrower at the bottom) and the gravitational potential energy formed by the height difference, the collected essential oil can be automatically and directionally discharged from the collection tube 16.

[0051] In this embodiment, the processing cavity 11 has three vertical walls 17, except for the inclined wall 12 on one side. The outer periphery of the dynamic pressing block 22 has five types of functional working surfaces: two sets of mating end faces 221 that fit with the two vertical walls 17 of the processing cavity 11; a sliding wall 222 that slides against the surface of the extrusion partition 21; an inclined top surface 223 that is inclined; an inclined extrusion side surface 224 that corresponds to the inclined wall 12; and a horizontal extrusion bottom surface 225 that is horizontally set at the bottom.

[0052] The inclined top surface 223 of the dynamic pressure block 22 and the inclined wall surface 12 of the processing chamber 11 cooperate to form an open upper feeding area 23. The inclined top surface structure can guide and flatten the bulk essential oil raw materials, avoid the accumulation of materials, and make the raw materials evenly spread in the feeding area 23, ensuring the continuity and uniformity of subsequent feeding.

[0053] The inclined extrusion side 224 is arranged completely parallel to the inclined wall 12 of the processing chamber 11, forming a uniformly spaced and uniformly wide primary extrusion extraction zone 24 between the inclined extrusion side 224 and the inclined wall 12. This uniformly wide gap structure ensures that all essential oil materials entering the primary extrusion extraction zone 24 experience uniform and continuously varying linear pressure as they pass through this area, avoiding local blockages or sudden pressure drops caused by uneven gaps, thus ensuring the consistency and reliability of the pre-extrusion effect. Meanwhile, the horizontal extrusion bottom surface 225 can fully extrude the essential oil materials inside the secondary pressurization extraction zone 25 during the downward movement of the dynamic pressure block 22.

[0054] In this embodiment, to further enhance the shearing, kneading, and crushing effects of the material and accelerate the extraction of essential oils, a plurality of first oblique teeth 226 are evenly arrayed on the inclined extrusion side 224 of the dynamic pressing block 22. These teeth can bite and penetrate the fiber layer of the plant material during the first-stage extrusion process, forming a continuous shearing, tearing, and kneading effect on the material, thereby accelerating the extraction of essential oils from the interior.

[0055] Correspondingly, the inclined wall 12 of the processing chamber 11 adopts a partitioned toothed surface structure, with several second conical teeth 121 evenly distributed only in the areas corresponding to the primary extrusion extraction zone 24 and the secondary pressurization extraction zone 25. The feeding zone 23 maintains a smooth planar structure, which does not affect the normal feeding and flow of materials from the upper part. The second conical teeth 121, combined with the planar shearing and kneading action of the first oblique teeth 226, form a composite crushing effect of piercing, tearing, and extrusion, which greatly improves the essential oil extraction efficiency in the primary extraction stage.

[0056] Meanwhile, on the working surface of the extrusion partition 21 between the dynamic pressure block 22 and the porous separation partition 3, a number of third oblique teeth 211 are evenly distributed. The third oblique teeth 211 are distributed in the secondary pressurization extraction zone 25 and are precisely aligned with the second conical teeth 121 of the oblique wall 12.

[0057] Compared to the tooth structure in the primary extraction zone, the secondary zone features a denser arrangement and shallower tooth depth of the third oblique teeth 211, adapted to the small-gap, high-pressure working environment of the secondary pressurized extraction zone 25. During high-pressure extrusion, the third oblique teeth 211 can perform secondary deep shearing and kneading on the residual material after initial pressing, effectively breaking down the compacted material cake layer, removing the closed pores remaining inside the fibers, and fully squeezing out the essential oil components hidden in the dense fiber gaps, thereby improving the deep extraction effect and reducing the oil content of the waste residue.

[0058] In this embodiment, to ensure the smoothness of the movement of the extrusion partition 21 during long-term high-frequency reciprocating sliding, the rear end face of the extrusion partition 21 away from the inclined wall 12 is slidably connected to the inner side of the extraction housing 1 through the directional sliding component 5.

[0059] Specifically, the directional sliding assembly 5 includes a four-point synchronous guiding structure consisting of a fixed plate 51 and four guide pillars 52. The fixed plate 51 is horizontally fixedly assembled at the vertical center of the extrusion partition 21. Four guide pillars 52 are symmetrically fixedly installed at the four corners of the fixed plate 51, and the four guide pillars 52 are arranged parallel to the inclined direction of the flow discharge channel 13. The ends of the four guide pillars 52 away from the fixed plate 51 horizontally penetrate the side wall of the extraction housing 1 and slide with the extraction housing 1 to ensure the extrusion partition 21 moves smoothly in a straight line throughout its entire movement. At the same time, the four guide pillars 52 extending out of the extraction housing 1 are jointly fixedly connected to a limiting plate 53, and the limiting plate 53 is fastened to the ends of the four guide pillars 52 to form an integral limiting structure.

[0060] In this embodiment, the lateral drive unit 41 can stably drive the extrusion partition 21 to perform periodic reciprocating uniform sliding between the preset extrusion end position and the retraction end position by calibrating the sliding stroke range through the program. By switching between the two extreme positions, the cyclic linkage operation of high-pressure extrusion of materials, compaction of residues, and replenishment of materials can be realized.

[0061] When the extrusion baffle 21 slides to the extrusion terminal position, the bottom side of the extrusion baffle 21 abuts against the bottom side of the inclined wall 12, so that the extrusion baffle 21 and the bottom of the inclined wall 12 are in contact. This allows for high-pressure extrusion of the material in the secondary pressurized extraction zone 25, fully squeezing out the residual essential oil inside the material and significantly reducing the oil content of the waste residue.

[0062] When the extrusion baffle 21 slides back to the retraction terminal position, the extrusion baffle 21 moves away from the inclined wall 12. At this time, the maximum feed gap preset by the equipment is formed between the extrusion baffle 21 and the bottom side of the inclined wall 12 (this maximum feed gap can be adaptively calibrated according to the essential oil raw materials). This maximum feed gap provides sufficient flow space for material discharge and replenishment, and can quickly release the material in the upper feeding area 23 and the first-stage extrusion extraction area 24, so that the loose fresh essential oil raw materials can be smoothly filled into the two-stage extraction areas under the action of gravity. By switching back and forth between the extrusion terminal position and the retraction terminal position, the device forms an automated operation of closed pressurized extraction and open replenishment and material replacement, which greatly improves the stability of continuous operation of the equipment and the consistency of essential oil extraction operation.

[0063] In this embodiment, the dual-drive system employs programmable phase-synchronous linkage control. The specific linkage control logic is configured as follows: during the extrusion operation phase where the lateral drive unit 41 drives the extrusion partition 21 to move forward from the retracted terminal position towards the extrusion terminal position, gradually narrowing the extraction gap, the vertical drive unit 42 simultaneously drives the dynamic pressure block 22 to move vertically downward from the upper terminal position towards the lower terminal position. During this synchronous movement, the lateral extrusion force and the vertical downward kneading force are superimposed and coupled, forming an oblique composite shearing and extrusion effect on the essential oil material in the extraction zone. Combined with the toothed surface crushing structure, this allows for all-around kneading and tearing of plant fiber tissue, preventing localized compaction and caking of the material, and enabling rapid extraction of essential oil components.

[0064] After the extrusion operation is completed, the horizontal drive unit 41 drives the extrusion baffle 21 to move horizontally backward from the extrusion end position to the retraction end position, gradually expanding the extraction gap during the material replenishment stage. Simultaneously, the vertical drive unit 42 drives the dynamic pressing block 22 to move vertically backward from the lower end position to the upper end position. The upward movement of the dynamic pressing block 22 can quickly release the vertical compression of the material. Combined with the maximum feeding gap formed by the retraction of the extrusion baffle 21, it effectively loosens the compacted material remaining in the extraction zone and breaks up the caked waste residue, facilitating the smooth downward conveying and discharge of the dried waste residue. At the same time, it frees up sufficient filling space for the fresh essential oil raw materials in the upper feeding zone 23, realizing the connection between old material discharge and new material replenishment.

[0065] The upper and lower end positions of the dynamic pressing block 22 are preset limit positions of the system, and the displacement stroke can be flexibly adjusted according to the fiber thickness, hardness and oil content of different essential oil raw materials.

[0066] In this embodiment, the lateral drive unit 41 is integrally assembled inside the independent drive component mounting cavity 111. The lateral drive unit 41 includes five major transmission components: a cover plate 411, a bracket 412, an eccentric shaft 413, a transmission slider 414, and a connecting support 415.

[0067] The cover plate 411 is installed on the top of the extraction housing 1; the bracket 412 is fastened to the bottom of the cover plate 411, providing a stable installation reference and load-bearing support for the entire transmission structure. The eccentric shaft 413 is rotatably mounted on the bracket 412 perpendicular to the bottom inclined surface 113 of the processing chamber 11; the transmission slider 414 is rotatably sleeved on the outside of the eccentric shaft 413, and can rotate synchronously with the eccentric shaft 413.

[0068] The connecting support 415 is fixed to the fixing plate 51 in the middle of the extrusion partition 21. The connecting support 415 has a groove 4151 perpendicular to the eccentric shaft 413. The transmission slider 414 is slidably embedded in the groove 4151. The bottom of the bracket 412 is fixedly installed with a drive motor (not shown) that is connected to the eccentric shaft 413. Through this structure, the continuous circumferential rotation of the eccentric shaft 413 can be efficiently converted into the relative sliding motion of the transmission slider 414 in the groove 4151, thereby driving the extrusion partition 21 to only perform transverse reciprocating linear motion, completing the periodic switching between the extrusion end position and the return end position.

[0069] In this embodiment, vertical through slots 212 are symmetrically provided on both sides of the upper part of the extrusion partition 21. The vertical drive unit 42 includes a connecting block 421, a guide bar 422, and two sets of guide slot assemblies 423. The connecting block 421 is slidably embedded in the vertical through slot 212, and its front end is fixedly integrated with the side wall of the dynamic pressure block 22, and can slide vertically synchronously with the dynamic pressure block 22; the ends of the two sets of connecting blocks 421 away from the dynamic pressure block 22 are fixedly connected to the horizontally arranged guide bar 422.

[0070] The processing cavity 11 has guide groove assemblies 423 symmetrically fixedly installed on two opposite vertical inner walls. The guide groove assembly 423 has a guide groove 4231 formed inside. The two ends of the guide crossbar 422 extend and are embedded in the guide groove 4231 on the corresponding side, forming a sliding fit with the guide groove 4231.

[0071] The guide groove 4231 adopts an inclined trajectory design, and extends upward from the end close to the inclined wall 12 to the end away from the inclined wall 12, forming an inclined guide path at a preset angle.

[0072] This special inclined structure allows the guide bar 422 to simultaneously generate horizontal and vertical displacement components as it slides along the guide groove 4231. This cleverly coordinates with the movement rhythm of the transverse drive unit 41. When the transverse drive unit 41 drives the extrusion partition 21 to move forward and extrude towards the inclined wall 12, the guide bar 422 moves downward along the inclined guide groove 4231, causing the dynamic pressure block 22 to move downward and pressurize synchronously. When the transverse drive unit 41 drives the extrusion partition 21 to retract, the guide bar 422 moves upward along the inclined guide groove 4231, causing the dynamic pressure block 22 to lift and loosen synchronously.

[0073] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency plant extract extraction device, characterized in that, include: The shell is extracted, which has a processing cavity with an open top. One inner wall of the processing cavity is an upwardly sloping wall, making the processing cavity a wide-mouthed structure that is wider at the top and narrower at the bottom. The bottom wall of the processing cavity is connected to and connected to a downwardly sloping drainage channel. A multi-stage extraction mechanism includes a compression baffle that is slidably mounted in the processing chamber and faces the inclined wall, and a dynamic pressing block that is slidably mounted on the upper part of the compression baffle; a feeding area and a primary compression extraction area are formed between the dynamic pressing block and the inclined wall from top to bottom; and a secondary pressurized extraction area that communicates with the primary compression extraction area is formed between the compression baffle below the dynamic pressing block and the inclined wall. A porous separation baffle is arranged parallel to and inside the flow discharge channel. One end of the baffle extends into the processing chamber and is fixedly connected to the bottom of the extrusion baffle. The other end of the baffle extends to the outlet end of the flow discharge channel. The baffle divides the flow discharge channel into an upper solid waste channel and a lower essential oil collection channel. The dual-drive system includes a transverse drive unit for driving the extrusion partition to reciprocate to move closer to or away from the inclined wall, and a vertical drive unit for driving the dynamic pressure block to reciprocate up and down relative to the main extrusion plate in the vertical direction.

2. The high-efficiency plant extract extraction device according to claim 1, characterized in that, The extrusion baffle divides the processing chamber into a drive component mounting chamber and a plant extraction chamber that are not connected to each other. The plant extraction chamber is further divided by the dynamic pressure block into a feeding area, a primary extrusion extraction area, and a secondary pressurization extraction area.

3. The high-efficiency plant extract extraction device according to claim 1, characterized in that, The bottom surface of the processing chamber is a sloped surface with the same inclination as the lower wall of the flow discharge channel, and the sloped surface and the lower wall of the flow discharge channel are smoothly connected; the outlet end of the flow discharge channel is provided with a protrusion with a gradually narrowing cross section, and a conical collection groove communicating with the essential oil collection channel is formed inside the protrusion, and a collection tube is provided at the bottom of the tip of the conical collection groove.

4. The high-efficiency plant extract extraction device according to claim 1, characterized in that, Except for the inclined wall, the other three sides of the inner wall of the processing chamber are vertical walls. The dynamic pressing block includes two mating end faces that fit with the two vertical walls of the processing chamber, a sliding wall face that fits with the extrusion partition, an inclined material guiding top face, an inclined extrusion side face, and a horizontal extrusion bottom face. The material feeding area is formed between the inclined material guiding top face and the inclined wall face. The inclined extrusion side face is parallel to the inclined wall face, and the primary extrusion extraction area of ​​equal width is formed between the inclined extrusion side face and the inclined wall face.

5. The high-efficiency plant extract extraction device according to claim 4, characterized in that, The inclined extrusion side is uniformly provided with first oblique teeth, and the other parts of the inclined wall surface, except for the feeding area, are uniformly provided with second conical teeth. The extrusion partition between the dynamic pressure block and the porous separation partition is uniformly provided with third oblique teeth near the inclined wall surface.

6. The high-efficiency plant extract extraction device according to claim 1, characterized in that, The side of the extrusion partition away from the inclined wall is slidably connected to the extraction shell through a directional sliding assembly. The directional sliding assembly includes a fixed plate fixed in the middle of the extrusion partition and four guide columns fixed at the four corners of the fixed plate and parallel to the flow discharge channel. The ends of the four guide columns away from the fixed plate penetrate the extraction shell and slide in cooperation with the extraction shell. The ends of the four guide columns away from the fixed plate are connected to a limit plate.

7. The high-efficiency plant extract extraction device according to claim 6, characterized in that, The lateral drive unit is used to drive the extrusion partition to slide between the extrusion end position and the retraction end position; when the extrusion partition is in the extrusion end position, the extrusion partition contacts the bottom side of the inclined wall surface; When the extrusion baffle is in the retraction terminal position, there is a preset maximum feeding gap between the extrusion baffle and the bottom side of the inclined wall.

8. The high-efficiency plant extract extraction device according to claim 7, characterized in that, The dual-drive system is configured such that when the lateral drive unit drives the extrusion partition to move from the retraction end position to the extrusion end position, the vertical drive unit simultaneously drives the dynamic pressure block to move from the upper end position to the lower end position. When the lateral drive unit drives the extrusion partition to move from the extrusion end position to the retraction end position, the vertical drive unit simultaneously drives the dynamic pressure block to move from the lower end position to the upper end position.

9. The high-efficiency plant extract extraction device according to claim 7, characterized in that, The lateral drive unit is disposed within the drive component mounting cavity. The lateral drive unit includes a cover plate mounted on the top of the extraction housing, a bracket fixed to the bottom of the cover plate, an eccentric shaft rotatably mounted on the bracket and perpendicular to the bottom inclined plane, a transmission slider rotatably sleeved on the eccentric shaft, and a connecting support fixed to the fixing plate. The connecting support has a groove perpendicular to the eccentric shaft, and the transmission slider is slidably disposed in the groove to convert the circumferential motion of the eccentric shaft into the lateral motion of the extrusion partition. A drive motor that is drively connected to the eccentric shaft is fixedly mounted at the bottom of the bracket.

10. The high-efficiency plant extract extraction device according to claim 7, characterized in that, The upper sides of the extrusion partition are symmetrically provided with vertical through slots. The vertical drive unit includes a connecting block that is slidably disposed in the vertical through slot and fixedly connected to the dynamic pressure block, a guide bar that is horizontally disposed and fixed to the end of the two connecting blocks away from the dynamic pressure block, and guide groove assemblies that are respectively fixed to the two opposite inner walls of the processing cavity. The guide groove assembly is provided with a guide groove. The two ends of the guide bar extend into the corresponding guide groove and are slidably connected to the guide groove. The guide groove is inclined upward from the end near the inclined wall to the end away from the inclined wall.

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