Device and method for extracting rhizoma polygonati extract

Abstract

The invention discloses a rhizoma polygonati extract extraction device and an extraction method thereof, and relates to the technical field of traditional Chinese medicine extracts.The rhizoma polygonati extract extraction device comprises a transmission cylinder, a layer section structure and a layer section structure, a right-angle motor is fixed to the surface of the transmission cylinder, and a rotating shaft is rotationally arranged on the surface of the right-angle motor; the first spiral blade is fixed to the surface of the mounting sleeve, the fixing piece is fixed to the surface of the first spiral blade, the U-shaped groove is formed in the surface of the first spiral blade, the dispersing assembly and the pushing structure are fixed to the surface of the U-shaped groove, and the connecting flange is fixed to the top end of the rotating shaft and located on the side edge of the dispersing assembly. The transmission shaft is fixed on the surface of the connecting flange. Material supply and discharge are dynamically balanced, the top plate mechanism actively intervenes in secondary accumulation of a conveying path, the feeding port is adjusted to control the feeding amount, and a continuous anti-blocking mechanism is formed, so that the conveying efficiency is improved, equipment loss is reduced, and stable material quality is guaranteed.

Description

Technical Field

[0001] This invention relates to the field of traditional Chinese medicine extraction technology, specifically to an extraction device and method for extracting Polygonatum sibiricum extract. Background Technology

[0002] Polygonatum is the dried rhizome of a perennial herbaceous plant belonging to the genus Polygonatum in the family Liliaceae. Polygonatum extract is a brownish-yellow powder or paste obtained from Polygonatum through processes such as water extraction or alcohol extraction, concentration, and drying.

[0003] In the extraction process of Polygonatum extract, a screw conveyor is used to realize the automated and closed transfer of Polygonatum pulverized material between different processes. This can not only avoid dust pollution caused by manual operation, but also ensure stable material conveying to connect the preceding and following processes. When the screw conveyor is in use, after starting the equipment, the pre-treated Polygonatum pulverized material is added from the feed port. The screw shaft rotates and drives the material forward, and finally it is discharged from the discharge port and enters the extraction equipment for subsequent extraction processes.

[0004] However, existing propeller blades have simple structures and are generally full-blade type. When the material of Polygonatum odoratum has poor flowability, it is easy to accumulate between the blades and on the conveying path, causing the material of Polygonatum odoratum to accumulate at the discharge port and not be discharged. Especially when the conveying distance is long, the material at the end is compacted due to increased pressure, which leads to obstruction of the feeding progress, reduced conveying efficiency, and may also damage the conveyor due to material accumulation and compaction, causing material denaturation and scrap. Summary of the Invention

[0005] The purpose of this invention is to provide an extraction device and method for Polygonatum extract to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0007] According to a first aspect of the present invention, an extraction apparatus for Polygonatum sibiricum extract is provided, comprising a transfer cylinder, wherein a right-angle motor is fixed to the surface of the transfer cylinder, and a rotating shaft is rotatably mounted on the surface of the right-angle motor; further comprising:

[0008] The segmented structure includes a mounting sleeve fixed to the surface of the rotating shaft, a first spiral blade fixed to the surface of the mounting sleeve, a fixing piece fixed to the surface of the first spiral blade, a U-shaped groove formed on the surface of the first spiral blade, and a dispersing component fixed to the surface of the U-shaped groove.

[0009] The push-top structure includes a connecting flange fixed to the top of the rotating shaft and located on the side of the dispersing component, a drive shaft fixed to the surface of the connecting flange, a second helical blade fixed to the surface of the drive shaft, a mounting base rotating at the top of the drive shaft, a pre-push component fixed to the mounting base, and a top-push component fixed to the pre-push component.

[0010] As a preferred embodiment of the extraction device for Polygonatum extract of the present invention, the dispersion component includes a positioning cylinder fixedly connected to the surface of the U-shaped groove, a sliding groove formed on the surface of the positioning cylinder, a sliding plate slidably connected to the surface of the sliding groove, and a connecting column fixedly connected to the surface of the sliding plate.

[0011] In a preferred embodiment of the extraction device for Polygonatum extract of the present invention, a sleeve rod is fixedly connected to the end of the connecting column away from the slide plate, a ball is fixedly connected to the top of the sleeve rod, and a first spring is fixedly connected between the slide plate and the U-shaped groove.

[0012] As a preferred embodiment of the extraction device for Polygonatum extract of the present invention, the pre-pushing component includes a circular base fixedly connected to the surface of the mounting base, an upper sleeve fixedly connected to the surface of the circular base, a lower sleeve fixedly connected to the surface of the circular base and symmetrical to the upper sleeve, and a connecting pipe fixedly connected to the surface of the mounting base. The two ends of the connecting pipe are fixedly connected to the upper sleeve and the lower sleeve respectively through piston cylinders.

[0013] In a preferred embodiment of the extraction device for Polygonatum extract of the present invention, the top material assembly is fixedly connected to a first stopper cap on the surface of the lower stopper cylinder, a push rod is slidably connected to the surface of the first stopper cap, a lower stopper piece is fixedly connected to the top of the push rod, and a push plate is fixedly connected to the end of the push rod away from the lower stopper piece.

[0014] As a preferred embodiment of the extraction device for Polygonatum extract of the present invention, the piston cylinder is fixedly connected to a second stopper cap, a limiting plate is fixedly connected to the surface of the piston cylinder and located on the side of the second stopper cap, a top rod is slidably connected to the limiting plate and the surface of the second stopper cap, and an upper stopper piece is fixedly connected to one end of the top rod.

[0015] In a preferred embodiment of the extraction device for Polygonatum extract of the present invention, a guide plate is fixedly connected to the surface of the upper sleeve, the guide plate is slidably connected to the surface of the top rod, a second spring is fixedly connected between the guide plate and the limiting plate, and a top plate is fixedly connected to the top rod.

[0016] In a preferred embodiment of the extraction device for Polygonatum extract of the present invention, a connecting arch plate is fixedly connected to the surface of the transmission cylinder, a connecting piece located on the side of the top plate is fixedly connected to the top end of the top rod, a guide rod located inside the connecting arch plate is fixedly connected to the surface of the connecting piece, a measuring plate is fixedly connected to one end of the guide rod, and a protective shell is fixedly connected to the surface of the connecting arch plate.

[0017] In a preferred embodiment of the extraction device for Polygonatum extract of the present invention, a feeding hopper is fixedly connected to the surface of the transmission cylinder, a feeding box is fixedly connected to the surface of the transmission cylinder and below the pre-pushing component, a fixing ring is fixedly connected to the surface of the transmission cylinder, and a fixing column is fixedly connected to the surface of the circular base.

[0018] According to a second aspect of the present invention, a method of using an extraction apparatus for Polygonatum extract is provided, based on an extraction apparatus for Polygonatum extract as described in any of the foregoing descriptions, the method comprising the steps of:

[0019] Step 1: The ground Polygonatum sibiricum material enters the feeding hopper, and the material falls evenly into the inside of the conveying cylinder through the discharge port of the feeding hopper;

[0020] Step 2: The rotating shaft drives the first spiral blade to rotate under the drive of the right-angle motor. The first spiral blade can be assembled into a full-blade type or a segmented type as required. The U-shaped groove on the surface of the first spiral blade increases the material flow channel. The ball moves radially in the positioning cylinder under the action of centrifugal force and is reset under the action of the first spring.

[0021] Step 3: The rotating shaft drives the transmission shaft to rotate through the connecting flange, and the transmission shaft drives the second spiral blade to accelerate the flow of material at the end of the transmission cylinder into the protective shell;

[0022] Step four: The material accumulated in the transmission cylinder squeezes the push plate. The push plate pushes the lower plug to slide in the piston cylinder through the push rod. The driving liquid transmits power to the top rod through the connecting pipe. The top rod drives the top plate to push the material on the upper surface of the transmission cylinder and links with the control plate to adjust the size of the feed hopper discharge port, forming a dynamic balance control of feeding and discharging.

[0023] The beneficial effects of this invention are as follows: the modular spiral blade combination enhances the flowability and dispersion of materials; the centrifugally driven dynamic spherical structure continuously breaks up adhering clumps and cleans the cylinder wall autonomously; the variable diameter propulsion design at the discharge port significantly expands the discharge space and coordinates with the mechanical linkage mechanism; the pusher component senses the accumulation pressure in real time and adaptively adjusts the feed flow rate to form a dynamic balance between material supply and discharge; at the same time, the top plate mechanism actively intervenes in secondary accumulation on the transmission path and controls the feed rate by adjusting the size of the feed port, forming a continuous anti-blocking mechanism, thereby improving conveying efficiency, reducing equipment wear, and ensuring stable material quality. Attached Figure Description

[0024] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the overall structure of the extraction device for Polygonatum extract of the present invention.

[0026] Figure 2 This is a schematic diagram of the transfer cylinder structure of the extraction device for Polygonatum extract of the present invention.

[0027] Figure 3 This is a cross-sectional schematic diagram of the transfer cylinder structure of the extraction device for Polygonatum extract of the present invention.

[0028] Figure 4 for Figure 3 Enlarged diagram of point A in the middle.

[0029] Figure 5 This is a schematic diagram of the first spiral blade structure of the extraction device for Polygonatum extract of the present invention.

[0030] Figure 6 This is a schematic diagram of the dispersion component structure of the extraction device for Polygonatum extract of the present invention.

[0031] Figure 7 for Figure 6 Enlarged diagram of point B in the middle.

[0032] Figure 8 This is a schematic diagram of the pusher structure of the extraction device for Polygonatum extract of the present invention.

[0033] Figure 9 This is a schematic diagram of the circular base structure of the extraction device for Polygonatum extract of the present invention.

[0034] Figure 10 This is a cross-sectional schematic diagram of the circular base of the extraction device for Polygonatum extract of the present invention.

[0035] Figure 11 for Figure 10 Enlarged diagram of point C in the middle.

[0036] Figure 12 This is a schematic plan view of the overall structure of the extraction device for Polygonatum extract of the present invention.

[0037] In the diagram: 101, Conveyor cylinder; 102, Right-angle motor; 103, Rotating shaft; 104, Feeding hopper; 106, Discharging box; 107, Fixing ring; 200, Layered structure; 201, Mounting sleeve; 202, First spiral blade; 203, Fixing plate; 204, U-shaped groove; 205, Dispersion assembly; 206, Protective shell; 2051, Positioning cylinder; 2052, Slide groove; 2053, Slide plate; 2054, Connecting column; 2055, Sleeve rod; 2056, First spring; 2057, Sphere; 300, Pushing structure; 301, Connecting flange; 302, Drive shaft; 303, Second spiral blade; 304, Pre-load... Push assembly; 305, Ejector assembly; 307, Fixing column; 3041, Circular base; 3042, Upper sleeve; 3043, Lower sleeve; 3044, Piston cylinder; 3045, Connecting pipe; 3046, Mounting base; 3051, First plug cap; 3052, Push rod; 3053, Lower plug piece; 3054, Push plate; 3055, Second plug cap; 3056, Limiting plate; 3057, Push rod; 3058, Guide plate; 3059, Upper plug piece; 3060, Second spring; 3061, Top plate; 3062, Connecting piece; 3064, Guide rod; 3065, Control plate; 3066, Connecting arch plate. Detailed Implementation

[0038] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0039] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0040] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places throughout this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive, either alone or selectively, with other embodiments.

[0041] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0042] Example 1, referring to Figures 1-6The first embodiment of the present invention provides an extraction device for Polygonatum sibiricum extract. This device includes a transfer cylinder 101, a right-angle motor 102 fixed to the surface of the transfer cylinder 101, and a rotating shaft 103 rotatably mounted on the surface of the right-angle motor 102; it also includes:

[0043] The layered structure 200 includes a mounting sleeve 201 fixed to the surface of the rotating shaft 103, a first spiral blade 202 fixed to the surface of the mounting sleeve 201, a fixing plate 203 fixed to the surface of the first spiral blade 202, a U-shaped groove 204 formed on the surface of the first spiral blade 202, and a dispersing component 205 fixed to the surface of the U-shaped groove 204. The first spiral blades 202 are connected in pairs through the fixing plates 203 and can be assembled into a layered structure. Through the layered assembly design, the flow channel of materials during the transmission process is increased, the retention between the blades is reduced, and the accumulation caused by poor flowability is avoided. The design of the U-shaped groove 204 further increases the flow space of materials during transmission and reduces the risk of material accumulation on the transmission path.

[0044] The pusher structure 300 includes a connecting flange 301 fixed to the top of the rotating shaft 103 and located on the side of the dispersing component 205, a drive shaft 302 fixed to the surface of the connecting flange 301, a second spiral blade 303 fixed to the surface of the drive shaft 302, a mounting base 3046 rotating at the top of the drive shaft 302, a pre-push component 304 fixed to the mounting base 3046, and a top material component 305 fixed to the pre-push component 304. The rotating shaft 103 drives the drive shaft 302 to rotate, and the second spiral blade 303 accelerates the flow of material at the end of the conveying cylinder 101 into the protective shell 206. The protective shell 206 increases the discharge space, reduces the pressure of the material at the end, and prevents compaction.

[0045] The dispersing component 205 includes a positioning cylinder 2051 fixedly connected to the surface of the U-shaped groove 204, a sliding groove 2052 formed on the surface of the positioning cylinder 2051, a sliding plate 2053 slidably connected to the surface of the sliding groove 2052, and a connecting post 2054 fixedly connected to the surface of the sliding plate 2053. The centrifugal force generated by the rotation of the rotating shaft 103 drives the sleeve rod 2055 to move the ball 2057. The ball 2057 contacts and rotates with the inner wall of the transmission cylinder 101, which can disperse materials that are stuck together by static electricity and prevent material accumulation from causing blockage.

[0046] The connecting column 2054 has a sleeve rod 2055 fixedly connected to the end away from the slide plate 2053. A ball 2057 is fixedly connected to the top of the sleeve rod 2055. A first spring 2056 is fixedly connected between the slide plate 2053 and the U-shaped groove 204. The first spring 2056 connects the slide plate 2053 and the U-shaped groove. When the centrifugal force changes, it can drive the slide plate 2053 and the ball 2057 to reset, so that the ball 2057 always maintains effective contact with the material. This not only breaks the tendency of the material to clump through the movement of the ball 2057, but also adjusts the pressure of the ball 2057 with the elasticity of the spring to adapt to materials in different states, improve dispersion efficiency, and reduce wear on the equipment caused by hard contact.

[0047] During use, the right-angle motor 102 is started, which drives the rotation of the shaft 103. The shaft 103 drives the rotation of the first spiral blade 202. The operator pours the ground Polygonatum into the feeding hopper 104. The material enters the conveying cylinder 101 through the discharge port in the feeding hopper 104. The first spiral blades 202 are connected in pairs by fixing plates 203. This design allows the operator to assemble individual first spiral blades 202 into a full-blade type according to needs. On the other hand, the first spiral blades 202 on the shaft 103 can also be assembled into a discontinuous structure. When assembled into a discontinuous structure, gaps are formed between adjacent spiral blades, breaking the continuous compression of the material by the traditional full-blade spiral blade. This design reduces the continuous stress on the material along the conveying path, avoiding pressure accumulation along the path during long-distance conveying, thereby reducing the risk of material compaction due to excessive pressure at the end. At the same time, the gap at the discontinuity provides a buffer space for the material, allowing it to loosen naturally during transmission and reducing agglomeration caused by continuous compression. It is especially suitable for grinding materials with poor flowability, such as Polygonatum odoratum, and can effectively alleviate the accumulation problem between the blades and along the conveying path, ensuring smooth conveying.

[0048] Each individual first spiral blade 202 has U-shaped grooves 204 formed on its surface, increasing the flow channel for materials during transport. The U-shaped groove design directly improves material flowability. Traditional full-blade spiral blades rely primarily on blade surface pushing for material transport, resulting in a single channel and susceptibility to congestion due to excessive material in certain areas. The U-shaped grooves provide an additional flow path, allowing materials to be pushed along the spiral blade surface and diverted through the grooves, reducing localized material accumulation. Furthermore, the concave structure of the U-shaped grooves reduces the contact area between the material and the spiral blade surface, minimizing adhesion caused by friction. Simultaneously, it allows for slight tumbling and mixing of the material within the groove, preventing compaction caused by static accumulation, further alleviating blockages in the transport path and improving overall transport efficiency.

[0049] As the rotating shaft 103 rotates, the centrifugal force generated by the rotating shaft 103 drives the sleeve rod 2055 to slide in the groove 2052 in the positioning cylinder 2051 under the support of the sliding plate 2053. The sleeve rod 2055 drives the ball 2057 to move along the direction of the centrifugal force generated when the rotating shaft 103 rotates. On the one hand, the ball 2057 contacts the inner surface of the transmission cylinder 101; on the other hand, the rotating ball 2057 can disperse the material and prevent the material from sticking together due to electrostatic force. The ball 2057 slides along the groove 2052 under the action of centrifugal force and rotates with the rotating shaft 103. In addition to dispersing the material and preventing electrostatic adhesion, it can also play multiple roles. First, the rolling contact between the ball 2057 and the inner surface of the transmission cylinder 101 can clean the cylinder wall. First, the ball 2057 is scraped in real time to remove material residue adhering to the cylinder wall, preventing long-term accumulation and hardening of scale, ensuring the smoothness of the inner wall of the conveying cylinder 101, and reducing material conveying resistance. Second, the movement of the ball 2057 is buffered by the first spring 2056, which can adaptively adjust the contact force with the cylinder wall according to the amount of material. When there is a lot of material, the ball 2057 contracts after being compressed, avoiding wear and tear on the equipment due to hard collision. When there is a little material, the spring returns to push the ball 2057 to contact the cylinder wall, ensuring a continuous dispersion effect and enhancing the adaptability and durability of the equipment. Third, the rotation of the ball 2057 can create a uniform disturbance to the material, making the material more evenly distributed during the conveying process and avoiding poor conveying caused by excessive local density.

[0050] Example 2, refer to Figures 1-11 This is the second embodiment of the present invention, which differs from the first embodiment in that: the pre-push assembly 304 includes a circular base 3041 fixedly connected to the surface of the mounting base 3046, an upper sleeve 3042 fixedly connected to the surface of the circular base 3041, a lower sleeve 3043 fixedly connected to the surface of the circular base 3041 and symmetrically positioned with the upper sleeve 3042, and a connecting pipe 3045 fixedly connected to the surface of the mounting base 3046. The two ends of the connecting pipe 3045 are fixedly connected to the upper sleeve 3042 and the lower sleeve 3043 respectively via piston cylinders 3044. Material accumulated inside the transmission cylinder 101 compresses the push plate 3054. The push plate 3054 pushes the lower stopper 3053 to slide within the piston cylinder 3044 via the push rod 3052, driving the liquid to transmit power to the top rod 3057 via the connecting pipe 3045. The top rod 3057 drives the top plate 3061 to push the material on the upper surface of the transmission cylinder 101, preventing secondary accumulation.

[0051] Compared to Embodiment 1, the top material assembly 305 is further configured with a first plug cap 3051 fixedly connected to the surface of the lower plug cylinder, a push rod 3052 slidably connected to the surface of the first plug cap 3051, a lower plug piece 3053 fixedly connected to the top of the push rod 3052, and a push plate 3054 fixedly connected to the end of the push rod 3052 away from the lower plug piece 3053. The first plug cap 3051 provides sealing and guidance for the push rod 3052, ensuring the stability of the push rod 3052 during sliding. The push rod 3052 connects the push plate 3054 and the lower plug piece 3053, directly transmitting the extrusion pressure of the material on the push plate 3054 to the lower plug piece 3053. The push plate 3054 directly contacts the accumulated material, expanding the force-bearing area and making the material pressure more evenly converted into the thrust of the push rod 3052.

[0052] Furthermore, a second plug cap 3055 is fixedly connected to the surface of the piston cylinder 3044, a limiting plate 3056 is fixedly connected to the surface of the piston cylinder 3044 and located on the side of the second plug cap 3055, a push rod 3057 is slidably connected to the limiting plate 3056 and the surface of the second plug cap 3055, and an upper plug plate 3059 is fixedly connected to one end of the push rod 3057. The second plug cap 3055 enhances the sealing of the piston cylinder 3044 to prevent liquid leakage from affecting power transmission. The limiting plate 3056 restricts the sliding range of the push rod 3057 to prevent structural misalignment caused by excessive movement of the push rod 3057. The push rod 3057, as an intermediate component for power transmission, converts liquid pressure into mechanical thrust. The upper plug plate 3059 is in direct contact with the liquid to ensure the integrity of pressure transmission.

[0053] Furthermore, a guide plate 3058 is fixedly connected to the surface of the upper sleeve 3042. The guide plate 3058 is slidably connected to the surface of the push rod 3057. A second spring 3060 is fixedly connected between the guide plate 3058 and the limiting plate 3056. A top plate 3061 is fixedly connected to the push rod 3057. The guide plate 3058 provides sliding guidance for the push rod 3057, ensuring that the push rod 3057 moves in a preset direction and avoiding deviation that affects the pushing effect. The second spring 3060 connects the guide plate 3058 and the limiting plate 3056, providing a restoring force after the push rod 3057 completes the pushing, so that the push rod 3057 and related components return to the initial position, preparing for the next pushing. The top plate 3061 directly contacts the material on the upper surface of the transmission cylinder 101, expanding the pushing area and enabling more comprehensive dispersal of accumulated material.

[0054] Furthermore, a connecting arch plate 3066 is fixedly connected to the surface of the conveying cylinder 101, and a connecting piece 3062 located on the side of the top plate 3061 is fixedly connected to the top of the top rod 3057. A guide rod 3064 located inside the connecting arch plate 3066 is fixedly connected to the surface of the connecting piece 3062, and a control plate 3065 is fixedly connected to one end of the guide rod 3064. A protective shell 206 is fixedly connected to the surface of the connecting arch plate 3066. The connecting arch plate 3066 provides a sliding channel for the guide rod 3064, ensuring the stability of the movement of the guide rod 3064. The connecting piece 3062 and the control plate 3065 of the guide rod 3064 convert the movement of the top rod 3057 into the position adjustment of the control plate 3065, realizing the dynamic control of the size of the discharge port of the hopper 104. The control plate 3065 adjusts the feed rate by changing its position to avoid excessive accumulation due to excessive feeding. The protective shell 206 provides protection for related components and reduces the interference of material splashing on the components.

[0055] A feeding hopper 104 is fixedly connected to the surface of the transmission cylinder 101. A discharging box 106 is fixedly connected to the surface of the transmission cylinder 101 and below the pre-push assembly 304. A fixing ring 107 is fixedly connected to the surface of the transmission cylinder 101. A fixing column 307 is fixedly connected to the surface of the circular base 3041, and the fixing column 307 is used to support the circular base 3041. The feeding hopper 104 fixed to the surface of the transmission cylinder 101 provides a stable feeding channel for materials, ensuring that materials enter in an orderly manner. The discharging box 106 located below the pre-push assembly 304 can collect and guide materials to the next stage, avoiding scattering. The fixing ring 107 provides fixed support for the transmission cylinder 101, enhancing its working stability and reducing the impact of shaking. The three work together to ensure the orderly transmission of materials, the centralized collection, and the stability of equipment operation. The working principle of this part is existing technology, which can be clearly understood by those skilled in the art, and will not be described in detail here.

[0056] During use, a pusher structure 300 is installed directly above the discharge port of the discharge box 106. The rotating shaft 103 and the drive shaft 302 are connected by a flange. The rotation of the rotating shaft 103 can drive the rotation of the drive shaft 302. The shaft diameter of the drive shaft 302 is smaller than the diameter of the rotating shaft 103. The width of the protective shell 206 is the same as the width of the discharge box. The protective shell 206 is cylindrical in shape and its diameter is larger than the outer diameter of the cross-section of the transmission cylinder 101. This directly alleviates the problem of material compression at the junction of the end of the transmission cylinder 101 and the discharge box 106. It solves the problem that traditional equipment is prone to blockage due to the narrow outlet space and dense accumulation of materials. The expanded space provides a more spacious flow channel for materials, reduces friction and compression between materials, and reduces the risk of compaction caused by space limitations.

[0057] Meanwhile, the protective shell 206 has the same width as the feeding box, ensuring that the transition path of the material from the conveying cylinder 101 into the feeding box is continuous and without misalignment, avoiding edge gaps or overlapping areas caused by width mismatch, and reducing dead corners where materials linger at the joint.

[0058] When the first spiral blade 202 carries the material to the vicinity of the discharge port of the feeding box 106, a large amount of material will accumulate on the surface of the feeding port of the feeding box 106. The rotating second spiral blade 303 carries the material to discharge, and then enters the extraction device. During the material carrying and discharging process, the material accumulated on the lower surface of the inside of the conveying cylinder 101 will squeeze the push plate 3054, causing the push plate 3054 to drive the push rod 3052 and the lower plug 3053 to slide along the center point of the first plug cap 3051 in the piston cylinder 3044. The connecting pipe 3045 is connected to the upper sleeve 3042 through the piston cylinder 3044, and the connecting pipe 3045 is connected to the lower sleeve 3043 through the piston cylinder 3044, so as to realize the communication between the upper sleeve 3042 and the lower sleeve 3043.

[0059] The connecting pipe 3045 and piston cylinder 3044 are filled with liquid, which can be water or other common liquids. The first plug cap 3051 and the second plug cap 3055 ensure the sealing of the piston cylinder 3044 without affecting the material transfer. When the push plate 3054 drives the push rod 3052 to move in the piston cylinder 3044, the liquid moves in the connecting pipe 3045 and piston cylinder 3044. The upper plug plate 3059 and the push rod 3057 slide in the second plug cap 3055 and the upper sleeve 3042. The limiting plate 3056 and the guide plate 3058 are used to limit and guide the push rod 3057. The second spring 3060 is used to reset the top rod 3057. On the one hand, it drives the top plate 3061 to push the material conveyed on the upper surface of the inside of the conveying cylinder 101, preventing the material conveyed on the upper surface of the inside of the conveying cylinder 101 from falling repeatedly to the vicinity of the discharge port of the feeding box 106 and causing accumulation and blockage. On the other hand, the top rod 3057 drives the guide rod 3064 and the control plate 3065 to move. The guide rod 3064 moves in the connecting arch plate 3066 on the surface of the conveying cylinder 101, and the control plate 3065 slides on the surface of the feeding box, changing the size of the discharge port of the feeding box, thereby controlling the amount of material entering the conveying cylinder 101.

[0060] When there is a large amount of material accumulating in the conveying cylinder 101, the push plate 3054 is squeezed and triggers the transmission chain, causing the control plate 3065 to move in the direction of narrowing the discharge opening, reducing the amount of material entering the conveying cylinder 101 and preventing the addition of material from aggravating the existing accumulation. When the accumulation decreases and the pressure of the push plate 3054 decreases, the second spring 3060 drives the top rod 3057 to reset, and the control plate 3065 then expands the discharge opening to ensure continuous material conveying and maintain extraction efficiency. This process is a dynamic process, that is, a continuous dynamic process of eliminating accumulation and adhesion.

[0061] The remaining structure is the same as that in Example 1.

[0062] Example 3, referring to Figures 1-12 This is the third embodiment of the present invention. This embodiment provides an extraction method for an extraction device of Polygonatum extract, which is implemented based on the extraction device of Polygonatum extract in any of the foregoing embodiments, and includes the following steps:

[0063] Step 1: The ground Polygonatum sibiricum material enters the device through the feed inlet of the feed hopper 104. The conical structure of the feed hopper 104 guides the material to fall evenly into the conveyor cylinder 101 along the discharge port. At this time, the right-angle motor 102 has been started, driving the rotating shaft 103 to rotate synchronously, providing initial power for subsequent material conveying. The discharge port of the feed hopper 104 corresponds to the starting end of the first spiral blade 202, ensuring that the material falls directly into the spiral conveying area and avoiding initial accumulation.

[0064] Step 2: The rotating shaft 103 drives the mounting sleeve 201 and the first spiral blade 202 to rotate synchronously. The first spiral blade 202 is modularly assembled through the fixing plate 203. The full-blade structure is suitable for short-distance rapid conveying. The intermittent structure, with adjacent spiral blades arranged at intervals, interrupts the material conveying path, destroys the compaction conditions, and reduces the risk of accumulation during long-distance conveying. The U-shaped groove 204 is spirally distributed along the surface of the spiral blade, which not only increases the lateral flow channel of the material, but also makes the material form a secondary vortex in the groove, increasing the probability of contact with the dispersing component 205. Under the action of centrifugal force, the ball 2057 slides radially along the positioning cylinder 2051 and squeezes the first spring 2056. Its movement trajectory covers the circumferential area of ​​the inner wall of the conveying cylinder 101, realizing the mechanical dispersal of the material and cleaning of the inner wall. The spring reset ensures that the ball 2057 returns to its position under low load, avoiding affecting normal conveying.

[0065] Step 3: The drive shaft 302 is rigidly connected to the rotating shaft 103 via a flange and rotates synchronously with the rotating shaft 103. The diameter of the drive shaft 302 is smaller than that of the rotating shaft 103, forming a variable diameter structure. This reduces the gap between the outer diameter of the second spiral blade 303 and the inner wall of the transmission cylinder 101, generating a local pressure boosting effect and accelerating the flow of material towards the protective shell 206 area. The protective shell 206 serves as a material discharge transition zone, and its inner diameter is larger than that of the transmission cylinder 101, forming an expansion space and reducing the material flow resistance. The pitch of the second spiral blade 303 is different from that of the first spiral blade 202 and is usually smaller. The variable pitch design further improves the end material conveying speed and avoids pressure accumulation before the discharge port.

[0066] Step four: When the material accumulates to a certain height at the bottom of the conveying cylinder 101, the push plate 3054 is squeezed by the material and slides axially along the first plug cap 3051. The push rod 3052 drives the lower plug plate 3053 to move within the piston cylinder 3044. The liquid in the piston cylinder 3044, such as water or hydraulic oil, transmits pressure to the upper sleeve 3042 and the lower sleeve 3043 through the connecting pipe 3045, driving the push rod 3057 and the upper plug plate 3059 to move synchronously. The top plate 3061 at the top of the push rod 3057 slides along the upper surface of the conveyor cylinder 101, pushing the upper material forward and breaking the layered accumulation state of the material. At the same time, the push rod 3057 drives the guide rod 3064 to slide within the connecting arch plate 3066 through the connecting piece 3062. The control plate 3065 moves synchronously with the guide rod 3064, dynamically adjusting the opening of the discharge port of the feeding hopper 104: when the accumulation pressure increases, the discharge port decreases, and when the pressure decreases, the discharge port recovers, forming an adaptive feeding control based on the real-time accumulation state of the material. The second spring 3060 provides a reset force when the push rod 3057 returns, ensuring the stability of the system response.

[0067] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), installation arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of the invention. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structurally equivalent but also equivalent in structure. Other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments without departing from the scope of the invention. Therefore, the present invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0068] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the invention as currently considered, or those features that are not relevant to implementing the invention) may be omitted.

[0069] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. An extraction apparatus for Polygonatum sibiricum extract, comprising a transfer cylinder (101), wherein a right-angle motor (102) is fixed to the surface of the transfer cylinder (101), and a rotating shaft (103) is rotatably mounted on the surface of the right-angle motor (102); characterized in that: Also includes: The layered structure (200) includes a mounting sleeve (201) fixed to the surface of the rotating shaft (103), a first spiral blade (202) fixed to the surface of the mounting sleeve (201), a fixing piece (203) fixed to the surface of the first spiral blade (202), a U-shaped groove (204) formed on the surface of the first spiral blade (202), and a dispersing component (205) fixed to the surface of the U-shaped groove (204). The push structure (300) consists of a connecting flange (301) fixed to the top of the rotating shaft (103) and located on the side of the dispersing assembly (205), a drive shaft (302) fixed to the surface of the connecting flange (301), a second spiral blade (303) fixed to the surface of the drive shaft (302), a mounting base (3046) rotating at the top of the drive shaft (302), a pre-push assembly (304) fixed to the mounting base (3046), and a top material assembly (305) fixed to the pre-push assembly (304).

2. The extraction apparatus for Polygonatum extract according to claim 1, characterized in that: The dispersion component (205) includes a positioning cylinder (2051) fixedly connected to the surface of the U-shaped groove (204), a sliding groove (2052) formed on the surface of the positioning cylinder (2051), a sliding plate (2053) slidably connected to the surface of the sliding groove (2052), and a connecting post (2054) fixedly connected to the surface of the sliding plate (2053).

3. The extraction apparatus for Polygonatum extract according to claim 2, characterized in that: The end of the connecting post (2054) away from the slide plate (2053) is fixedly connected to a sleeve rod (2055), the top end of the sleeve rod (2055) is fixedly connected to a ball (2057), and a first spring (2056) is fixedly connected between the slide plate (2053) and the U-shaped groove (204).

4. The extraction apparatus for Polygonatum extract according to claim 3, characterized in that: The pre-push assembly (304) includes a circular base (3041) fixedly connected to the surface of the mounting base (3046), an upper sleeve (3042) fixedly connected to the surface of the circular base (3041), a lower sleeve (3043) fixedly connected to the surface of the circular base (3041) and symmetrical to the upper sleeve (3042), and a connecting pipe (3045) fixedly connected to the surface of the mounting base (3046). The two ends of the connecting pipe (3045) are fixedly connected to the upper sleeve (3042) and the lower sleeve (3043) respectively through piston cylinders (3044).

5. The extraction apparatus for Polygonatum extract according to claim 4, characterized in that: The top material assembly (305) is fixedly connected to the first plug cap (3051) on the surface of the lower plug cylinder, the push rod (3052) is slidably connected to the surface of the first plug cap (3051), the lower plug piece (3053) is fixedly connected to the top of the push rod (3052), and the push plate (3054) is fixedly connected to the end of the push rod (3052) away from the lower plug piece (3053).

6. The extraction apparatus for Polygonatum extract according to claim 5, characterized in that: A second plug cap (3055) is fixedly connected to the surface of the piston cylinder (3044), a limiting plate (3056) is fixedly connected to the surface of the piston cylinder (3044) and located on the side of the second plug cap (3055), a push rod (3057) is slidably connected to the surface of the limiting plate (3056) and the second plug cap (3055), and an upper plug piece (3059) is fixedly connected to one end of the push rod (3057).

7. The extraction apparatus for Polygonatum extract according to claim 6, characterized in that: A guide plate (3058) is fixedly connected to the surface of the upper sleeve (3042). The guide plate (3058) is slidably connected to the surface of the top rod (3057). A second spring (3060) is fixedly connected between the guide plate (3058) and the limiting plate (3056). A top plate (3061) is fixedly connected to the top rod (3057).

8. The extraction apparatus for Polygonatum extract according to claim 7, characterized in that: A connecting arch plate (3066) is fixedly connected to the surface of the transmission cylinder (101). A connecting piece (3062) located on the side of the top plate (3061) is fixedly connected to the top of the top rod (3057). A guide rod (3064) located inside the connecting arch plate (3066) is fixedly connected to the surface of the connecting piece (3062). A control plate (3065) is fixedly connected to one end of the guide rod (3064). A protective shell (206) is fixedly connected to the surface of the connecting arch plate (3066).

9. The extraction apparatus for Polygonatum extract according to claim 8, characterized in that: A feeding hopper (104) is fixedly connected to the surface of the transmission cylinder (101), a feeding box (106) is fixedly connected to the surface of the transmission cylinder (101) and below the pre-push assembly (304), a fixing ring (107) is fixedly connected to the surface of the transmission cylinder (101), and a fixing column (307) is fixedly connected to the surface of the circular base (3041).

10. An extraction method based on the extraction apparatus for Polygonatum extract according to claim 9, characterized in that: Includes the following steps: Step 1: The ground Polygonatum sibiricum material enters the feeding hopper (104), and the material falls evenly into the transmission cylinder (101) through the discharge port of the feeding hopper (104); Step 2: The rotating shaft (103) drives the first spiral blade (202) to rotate under the drive of the right-angle motor (102). The first spiral blade (202) can be assembled into a full-blade type or a segmented type as required. The U-shaped groove (204) on the surface of the first spiral blade (202) increases the material flow channel. The ball (2057) moves radially in the positioning cylinder (2051) under the action of centrifugal force and is reset under the action of the first spring (2056). Step 3: The rotating shaft (103) drives the transmission shaft (302) to rotate through the connecting flange (301), and the transmission shaft (302) drives the second spiral blade (303) to accelerate the flow of material at the end of the transmission cylinder (101) into the protective shell (206); Step four, the material accumulated in the transmission cylinder (101) squeezes the push plate (3054), and the push plate (3054) pushes the lower stopper (3053) to slide in the piston cylinder (3044) through the push rod (3052), driving the liquid to transmit power to the top rod (3057) through the connecting pipe (3045). The top rod (3057) drives the top plate (3061) to push the material on the upper surface of the transmission cylinder (101) and links the control plate (3065) to adjust the size of the discharge port of the feeding hopper (104), forming a dynamic balance control of feeding and discharging.

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