Preparation method of stroke rejuvenation tablet

Abstract

The invention relates to a preparation method of a stroke rejuvenation tablet, which comprises the step of extracting plant components in the traditional Chinese medicine rejuvenation tablet, and the specific extraction process is that the plant components comprise safflower, peach kernel, caulis spatholobi, honeysuckle stem, Chinese starjasmine stem, lycopodium clavatum, radix cyathulae, fried motherwort fruit, radix clematidis, pawpaw and salvia miltiorrhiza. The method comprises the following steps: putting plant components into an inner-layer barrel of an extraction tank, adding water which is 4-6 times of the weight of the plant components into the inner-layer barrel for the first time, decocting for 2 hours and pumping decoction into an outer-layer barrel, adding water which is 3-5 times of the weight of the plant components into the inner-layer barrel for the second time, extracting for 1.5 hours, then pumping decoction in the outer-layer barrel into the inner-layer barrel for the second time, the decoction liquid mixing is realized. The technical problem that in the prior art, when plant components are extracted, the temperature difference between two times of filtrate in the filtrate merging process is too large, and uniform mixing is not prone to occurring is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of traditional Chinese medicine preparation, and particularly relates to a preparation method of Zhongfeng Huichun tablets. Background Art

[0002] Zhongfeng Huichun tablets are a traditional Chinese medicine compound preparation for treating sequelae of stroke, with the effects of promoting blood circulation to remove blood stasis, and relaxing tendons and activating collaterals. It is used for stroke caused by phlegm and blood stasis obstruction, manifested as hemiplegia, limb numbness, slurred speech, and crooked mouth and tongue.

[0003] The Chinese Pharmacopoeia includes the prescription composition and preparation method of Zhongfeng Huichun tablets: [Prescription] Angelica sinensis (processed with wine) 30g, Ligusticum chuanxiong (processed with wine) 30g, Carthamus tinctorius 10g, Prunus persica 30g, Salvia miltiorrhiza 100g, Spatholobus suberectus 100g, Lonicera japonica 100g, Trachelospermum jasminoides 60g, Pheretima aspergillum (stir-fried) 90g, Eupolyphaga seu Steleophaga (stir-fried) 30g, Lycopodium clavatum 60g, Cyathula officinalis 100g, Scolopendra subspinipes mutilans 5g, Leonurus japonicus (stir-fried) 30g, Scorpio 10g, Clematis chinensis (processed with wine) 30g, Bombyx batryticatus (stir-fried) 30g, Chaenomeles sinensis 50g, Bungarus parvus 6g [Preparation Method] The above nineteen flavors, Angelica sinensis (processed with wine), Ligusticum chuanxiong (processed with wine), Pheretima aspergillum (stir-fried), Eupolyphaga seu Steleophaga (stir-fried), Scolopendra subspinipes mutilans, Bungarus parvus, Scorpio, Bombyx batryticatus (stir-fried), and 50g of Salvia miltiorrhiza are pulverized into fine powder, screened, and the remaining amount is combined with the remaining plant traditional Chinese medicine formula of Carthamus tinctorius, etc. Then, it is decocted twice with water. The first time is for 2 hours, and the second time is for 1.5 hours. After filtration, the filtrates are combined. The filtrate is allowed to stand for 24 hours, and the supernatant is taken and concentrated to a thick paste with a relative density of 1.20 - 1.30 (80°C). The fine powder is added, mixed evenly, made into granules, dried, and pressed into 1000 tablets, and then sugar-coated or film-coated to obtain the product.

[0004] In the traditional preparation method, it is necessary to decoct and extract corresponding multiple plant-based traditional Chinese medicines twice, and then combine the filtrates. When combining the filtrates, the temperature of the first filtrate has already cooled down, and the temperature difference between the two filtrates is relatively large, making it impossible to achieve good uniform mixing. Summary of the Invention

[0005] The purpose of the present invention is to provide a preparation method of Zhongfeng Huichun tablets to solve the technical problem in the prior art that during the extraction of plant components, the temperature difference between the front and rear filtrates is too large during the process of combining the filtrates, making it difficult to mix evenly.

[0006] To solve the above technical problem, the technical solution of a preparation method of Zhongfeng Huichun tablets in the present invention is as follows: A preparation method of Zhongfeng Huichun tablets, which includes extracting the plant components in the traditional Chinese medicine Zhongfeng Huichun tablets. The specific extraction process is as follows: The plant components include safflower, peach kernel, millettia stem, honeysuckle stem, china starjasmine stem, lycopodium clavatum, cyathula root, stir-fried leonurus, clematis root, papaya and salvia miltiorrhiza. The plant components are put into the inner cylinder of the extraction tank. For the first time, water with a weight 4 to 6 times that of the plant components is added into the inner cylinder, and it is decocted for 2 hours. Then the decoction liquid is pumped into the outer cylinder. For the second time, water with a weight 3 to 5 times that of the plant components is added into the inner cylinder, and it is extracted for 1.5 hours. Then the decoction liquid in the outer cylinder is pumped into the inner cylinder to achieve the mixing of the decoction liquid. The extraction tank includes an inner cylinder and an outer cylinder located outside the inner cylinder. There is an annular transition cavity between the inner cylinder and the outer cylinder. The annular transition cavity is separated by an annular partition into an installation cavity and a water storage cavity which are arranged inside and outside. A heating coil for heating the inner cylinder is arranged in the installation cavity. The bottom of the water storage cavity is connected to the inner cylinder through a water injection pipeline, and a water injection pipeline valve is arranged on the water injection pipeline. A stirring device is arranged in the inner cylinder. The extraction tank also includes a decoction liquid pump for pumping the decoction liquid in the inner cylinder into the outer cylinder and for pumping the decoction liquid in the outer cylinder into the inner cylinder.

[0007] Furthermore, the distance between the heating coil and the outer periphery of the inner cylinder is less than the distance between the heating coil and the inner periphery of the annular partition, and there is an installation space between the heating coil and the inner periphery of the annular partition.

[0008] Furthermore, the tops of the inner cylinder and the outer cylinder are provided with cylinder covers. Multiple arc-shaped holes are arranged on the cylinder covers at intervals in the circumferential direction. The lower ends of the arc-shaped holes are communicated with the installation space. The extraction tank also includes arc-shaped heat insulation plates corresponding to the arc-shaped holes. The arc-shaped heat insulation plates are inserted into the corresponding installation spaces through the arc-shaped holes. The arc-shaped heat insulation plates are arranged at intervals in the circumferential direction of the inner cylinder. The upper ends of the arc-shaped heat insulation plates are fixed to the same transmission ring, and the arc-shaped heat insulation plates can rotate circumferentially in the corresponding arc-shaped holes.

[0009] Furthermore, the bottoms of the inner cylinder and the outer cylinder have cylinder bottom plates. The extraction tank also includes a base plate located below the cylinder bottom plates. An equipment room is formed between the base plate and the cylinder bottom plates. An inner cylinder water outlet communicated with the inner cavity of the inner cylinder is arranged on the cylinder bottom plate. A filter screen and a water outlet valve are arranged at the inner cylinder water outlet. The decoction liquid pump is arranged in the equipment room. The decoction liquid pump includes a decoction liquid pump housing and a decoction liquid pump impeller. One end of the decoction liquid pump housing is provided with a housing first water port connected to the inner cylinder water outlet, and the other end of the decoction liquid pump housing is provided with a housing second water port connected to the inner cavity of the outer cylinder. A housing third water port and a housing fourth water port are arranged on the outer periphery of the decoction liquid pump housing. The housing third water port is connected to the inner cavity of the outer cylinder through a water pipe, and the housing fourth water port is connected to the inner cavity of the inner cylinder through a water pipe.

[0010] Furthermore, a vane shaft gear is provided on the vane shaft of the decoction liquid pump, and a stirring shaft gear is provided on the stirring shaft of the stirring device. The vane shaft gear and the stirring shaft gear are located in the equipment room. The vane shaft gear and the stirring shaft gear are arranged at different heights. The extraction tank further includes a driving motor that can move up and down under the drive of a lifting mechanism. A motor shaft gear that can selectively engage with the vane shaft gear and the stirring shaft gear individually by moving up and down is connected to the motor shaft of the driving motor.

[0011] The technical solution of the extraction tank in the present invention is as follows: It includes an inner cylinder and an outer cylinder located outside the inner cylinder. There is an annular transition cavity between the inner cylinder and the outer cylinder. The annular transition cavity is separated by an annular partition into an installation cavity and a water storage cavity arranged inside and outside. A heating coil for heating the inner cylinder is provided in the installation cavity. The bottom of the water storage cavity is connected to the inner cylinder through a water injection pipeline. A water injection pipeline valve is provided on the water injection pipeline. A stirring device is provided inside the inner cylinder. The extraction tank further includes a decoction liquid pump for pumping the decoction liquid in the inner cylinder into the outer cylinder and for pumping the decoction liquid in the outer cylinder into the inner cylinder.

[0012] Furthermore, the distance between the heating coil and the outer periphery of the inner cylinder is less than the distance between the heating coil and the inner periphery of the annular partition. There is an installation space between the heating coil and the inner periphery of the annular partition.

[0013] Furthermore, cylinder covers are provided at the tops of the inner cylinder and the outer cylinder. A plurality of arc-shaped holes spaced circumferentially are provided on the cylinder covers. The lower ends of the arc-shaped holes communicate with the installation space. The extraction tank further includes arc-shaped heat insulation plates corresponding to the arc-shaped holes. The arc-shaped heat insulation plates are inserted into the corresponding installation spaces through the arc-shaped holes. The arc-shaped heat insulation plates are spaced circumferentially along the periphery of the inner cylinder. The upper ends of the arc-shaped heat insulation plates are fixed to the same transmission ring. The arc-shaped heat insulation plates can rotate circumferentially along the arc-shaped holes in the corresponding arc-shaped holes.

[0014] Furthermore, the bottoms of the inner cylinder and the outer cylinder have cylinder bottom plates. The extraction tank further includes a base plate located below the cylinder bottom plates. An equipment room is formed between the base plate and the cylinder bottom plates. An inner cylinder water outlet communicating with the inner cavity of the inner cylinder is provided on the cylinder bottom plate. A filter screen and a water outlet valve are provided at the inner cylinder water outlet. The decoction liquid pump is arranged in the equipment room. The decoction liquid pump includes a decoction liquid pump housing and decoction liquid pump vanes. One end of the decoction liquid pump housing is provided with a first water port of the housing connected to the inner cylinder water outlet. The other end of the decoction liquid pump housing is provided with a second water port of the housing connected to the inner cavity of the outer cylinder. A third water port of the housing and a fourth water port of the housing are provided on the outer periphery of the decoction liquid pump housing. The third water port of the housing is connected to the inner cavity of the outer cylinder through a water pipe. The fourth water port of the housing is connected to the inner cavity of the inner cylinder through a water pipe.

[0015] Further, a vane shaft gear is provided on the vane shaft of the decoction liquid pump, a stirring shaft gear is provided on the stirring shaft of the stirring device, the vane shaft gear and the stirring shaft gear are located in the equipment room, the vane shaft gear and the stirring shaft gear are arranged staggeredly in height, the extraction tank further includes a driving motor capable of moving up and down under the drive of a lifting mechanism, and a motor shaft gear that is connected to the motor shaft of the driving motor and selectively engages with the vane shaft gear and the stirring shaft gear separately by moving up and down.

[0016] The beneficial effects of the present invention are as follows: During use, water is injected into the water storage cavity, and the heating coil heats the solution in the inner cylinder, thereby realizing the decoction of the plant components in the Zhongfeng Huichun tablets. The water in the water storage cavity is also heated. When the first decoction is completed, the decoction liquid in the inner cylinder is pumped into the inner cavity of the outer cylinder by the decoction liquid pump, and the water in the water storage cavity enters the inner cavity of the inner cylinder through the water injection pipeline for the second decoction, and new cold water is replenished into the water storage cavity. During each decoction, the heat of the heating coil is not only used for the decoction of the medicinal liquid in the inner cylinder, but the heat outside the heating coil will be transferred to the decoction liquid in the outer cylinder through the water storage cavity, ensuring that the decoction liquid in the outer cylinder has a certain temperature. In this way, when the two decoction liquids are mixed, the temperature difference will not be too large, which is conducive to the uniform mixing of the two decoction liquids; the water storage cavity has two functions. One is that the water is preheated, so that when the water is injected into the inner cylinder for decoction, energy consumption can be saved; the other is that the water storage cavity prevents the heating coil from directly heating the decoction liquid in the outer cylinder, because the first decoction liquid in the outer cylinder only needs to maintain a certain temperature and does not need to boil continuously, avoiding the problem of loss of active ingredients caused by the continuous boiling of the first decoction liquid. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] By referring to the accompanying drawings and reading the following detailed description, the above and other objects, features, and advantages of the exemplary embodiments of the present disclosure will become readily understood. In the drawings, several embodiments of the present disclosure are shown in an exemplary and non-limiting manner, and the same or corresponding reference numerals represent the same or corresponding parts, wherein: Figure 1 is a schematic structural diagram of an extraction tank in Embodiment 1 of a preparation method of a Zhongfeng Huichun tablet in the present invention; Figure 2 is Figure 1 the top view of Figure 3 is Figure 1 the schematic diagram of the cooperation between the arc-shaped heat insulation plate and the transmission ring in Figure 4 is Figure 3 the top view of Figure 5 is Figure 1 the enlarged view of A in Figure 6It is a schematic structural diagram of an extraction tank in Example 2 of a preparation method of a Zhongfeng Huichun tablet in the present invention; 1. Outer cylinder; 2. Water storage chamber; 3. Annular partition; 4. Arc-shaped heat insulation board; 5. Ultrasonic transducer; 6. Material port switch; 7. Top plate; 8. Heating coil; 9. Stirring blade; 10. Inner cylinder; 11. Installation cavity; 12. Stirring shaft; 13. Bottom plate; 14. Equipment room; 15. Stirring shaft gear; 16. Motor shaft gear; 17. Electric push rod; 18. Scissor lifting mechanism; 19. Driving motor; 20. Blade shaft; 21. Blade shaft gear; 22. Decoction liquid pump; 23. Vent hole; 24. Water injection hole; 25. Arc-shaped hole; 26. Transmission ring; 27. Base plate; 28. Outlet of the inner cylinder for the decoction liquid; 29. Decoction liquid pump housing; 30. First water port of the housing; 31. Second water port of the housing; 32. Third water port of the housing; 33. Fourth water port of the housing; 34. First water pipe; 35. Second water pipe; 36. Third water pipe; 37. First motor; 38. Second motor; 39. Liquid medicine outlet; 40. Water injection pipeline. Detailed implementation manners

[0018] For the convenience of understanding the present invention, the present invention will be described in more detail below with reference to the drawings and specific embodiments. The preferred embodiments of the present invention are shown in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosed content of the present invention more thorough and comprehensive.

[0019] It should be noted that unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field to which the present invention belongs. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not used to limit the present invention.

[0020] Example 1 of a preparation method of a Zhongfeng Huichun tablet in the present invention is as Figures 1 to 5 shown: The composition of the drug components of the Zhongfeng Huichun tablet belongs to the prior art, which includes Angelica sinensis processed with wine, Ligusticum chuanxiong processed with wine, Carthamus tinctorius, Prunus persica, Salvia miltiorrhiza, Spatholobus suberectus, Lonicera japonica Thunb., Trachelospermum jasminoides, Pheretima aspergillum stir-fried, Eupolyphaga seu Steleophaga stir-fried, Lycopodium clavatum, Cyathula officinalis, Scolopendra subspinipes mutilans, Leonurus japonicus Houtt. stir-fried, Scorpio, Clematis chinensis Osbeck processed with wine, Bombyx batryticatus stir-fried, Chaenomeles speciosa, Bungarus parvus, and the weight ratio between each drug component also belongs to the prior art and will not be elaborated here.

[0021] The preparation method of the Zhongfeng Huichun tablet includes the following steps: 1. Crushing Take Angelica sinensis processed with wine, Ligusticum chuanxiong processed with wine, Pheretima aspergillum stir-fried, Eupolyphaga seu Steleophaga stir-fried, Scolopendra subspinipes mutilans, Bungarus parvus, Scorpio, Bombyx batryticatus stir-fried, and Salvia miltiorrhiza, crush them and sieve through a 80-200 mesh sieve; 2. Extraction That is, extract the plant components in the Chinese medicine Huichun Tablets. The specific extraction process is as follows: The plant components include safflower, peach kernel, Caulis Spatholobi, Caulis Lonicerae, Caulis Trachelospermi, Herba Lycopodii, Cyathula officinalis Kuan, stir-fried Leonurus japonicus Houtt., Clematis chinensis Osbeck, Chaenomeles speciosa (Sweet) Nakai, and Salvia miltiorrhiza Bunge. Put the plant components into the inner cylinder 10 of the extraction tank. Add water with a weight 4 - 6 times that of the plant components into the inner cylinder 10 for the first time, decoct for 2 hours, pump the decoction into the outer cylinder 1, add water with a weight 3 - 5 times that of the plant components into the inner cylinder 10 for the second time, extract for 1.5 hours, and then pump the decoction in the outer cylinder 1 into the inner cylinder 10 to achieve the mixing of the decoctions; 3. Concentration In the second step, after the decoctions are mixed, let the filtrate stand for 24 hours, take the supernatant, and concentrate it into a thick paste with a relative density of 1.20 - 1.30 (80 °C); 4. Granulation Mix the powder in the first step, the thick paste in the third step, and ethanol, and granulate using a wet mixing granulator; 5. Drying Dry the granules in the fourth step in a fluidized bed, control the temperature at 60 - 80 °C to make the moisture content of the granules reach 3% - 5%; 6. Screening Screen the dried granules with a screening machine using a 16 - mesh sieve; 7. Total mixing Add magnesium stearate to the granules and mix for 10 - 30 minutes; 8. Tabletting Use an 8.5 - mm punch for tabletting, the pressure of the tabletting machine is 40 - 50 KN, and press 1000 tablets; 9. Coating (1) Preparation of film coating: Mix the pharmaceutical film coating premixed excipients with an appropriate amount of coating solution evenly, (2) Coating: Distribute the coating solution evenly on the plain tablets. After the tablet surface is smooth, the color is uniform, and the tablet weight variation is qualified, stop adding the liquid, blow air until the tablet core is completely dry and then take it out; (3) Drying the tablets: Dry for 8 - 12 hours.

[0022] Compared with the prior art, the Huichun Tablets and its preparation method of the present invention have the following beneficial effects: (1) The tablet production process of the Huichun Tablets of the present invention is simple and has good process tolerance.

[0023] (2) The Huichun Tablets prepared by the present invention have stable quality, and the content meets the regulations after 6 - month accelerated stability test.

[0024] (3) The present invention adopts ultrasonic-assisted extraction, which is conducive to the extraction of active ingredients.

[0025] (4) The present invention adopts a high-efficiency wet granulation mixer combined with fluidized bed drying technology, and the yield of the prepared granules is much higher than that produced by the prior art.

[0026] In other embodiments of the present invention, except for the second step, other steps in the preparation method of Zhongfeng Huichun tablets can also adopt the conventional preparation methods in the prior art recorded in the technology.

[0027] The extraction tank used in the second step The extraction tank includes an inner cylinder body 10 and an outer cylinder body 1 located outside the inner cylinder body 10. There is an annular transition cavity between the inner cylinder body 10 and the outer cylinder body 1. The annular transition cavity is divided into an installation cavity 11 and a water storage cavity 2 arranged inside and outside by an annular partition 3. A heating coil 8 for heating the inner cylinder body is arranged in the installation cavity 11. The bottom of the water storage cavity 11 is connected to the inner cylinder body through a water injection pipeline, and a water injection pipeline valve is arranged on the water injection pipeline. A stirring device is arranged inside the inner cylinder body. The stirring device includes a stirring shaft 12 and stirring blades 9. The extraction tank also includes a decoction liquid pump 22 for pumping the decoction liquid in the inner cylinder body into the outer cylinder body and for pumping the decoction liquid in the outer cylinder body into the inner cylinder body. A water injection port 24 is arranged at the upper end of the water storage cavity, a vent hole 23 is arranged at the upper end of the outer cylinder body, and a liquid medicine outlet 39 is arranged at the bottom of the outer cylinder body.

[0028] A cylinder top plate 7 is fixed to the tops of the inner cylinder body 10, the annular partition 3 and the outer cylinder body 1, and a cylinder bottom plate 13 is fixed to the bottoms of the inner cylinder body 10, the annular partition 3 and the outer cylinder body 1. A blanking port is arranged at the center of the cylinder top plate, and a material opening switch 6 capable of being opened and closed is arranged at the blanking port. Two ultrasonic transducers 5 with the bottoms extending into the inner side of the inner cylinder body are also arranged on the cylinder top plate.

[0029] The heating coil 8 is attached to the outer circumference of the inner cylinder body. Therefore, the distance between the heating coil and the outer circumference of the inner cylinder body is less than the distance between the heating coil and the inner circumference of the annular partition. There is an installation space between the heating coil 8 and the inner circumference of the annular partition 3. This is because when the heating coil is in use, less heat can be distributed on the outside, and it is hoped that the liquid medicine in the inner cylinder body can boil, while the water temperature in the water storage cavity is maintained at 80 - 90 °C to prevent the liquid medicine in the outer cylinder body from boiling continuously and affecting the medicinal properties.

[0030] To control the heat transfer of the heating coil outward, a plurality of arc-shaped holes 25 are provided on the cylinder cover plate at circumferential intervals. The lower end of the arc-shaped hole 25 communicates with the installation space. The extraction tank further includes arc-shaped heat insulation plates 4 provided corresponding to each arc-shaped hole. The arc-shaped heat insulation plates 4 are inserted into the corresponding installation spaces 11 through the arc-shaped holes. The arc-shaped heat insulation plates are arranged at circumferential intervals along the inner cylinder. The upper ends of the arc-shaped heat insulation plates are fixed to the same transmission ring 26. The arc-shaped heat insulation plates 4 can rotate circumferentially along the arc-shaped holes in the corresponding arc-shaped holes. The circumferential length of the arc-shaped heat insulation plate is less than the circumferential length of the arc-shaped hole. Under the blocking action of the arc-shaped heat insulation plate, the heat transferred outward by the heating coil can be reduced. By moving the circumferential position of the arc-shaped heat insulation plate, the heat transfer outward can be made more uniform. If the length of the arc-shaped heat insulation plate is the same as the length of the arc-shaped hole, a large amount of heat cannot be effectively transferred to the water in the water storage cavity.

[0031] The extraction tank further includes a base plate located on the lower side of the cylinder bottom plate. An equipment room 14 is formed between the base plate and the cylinder bottom plate. An inner cylinder water outlet 28 communicating with the inner cavity of the inner cylinder is provided on the cylinder bottom plate. A filter screen and a water outlet valve are provided at the inner cylinder water outlet 28. The decoction liquid pump is arranged in the equipment room. The decoction liquid pump includes a decoction liquid pump housing and a decoction liquid pump impeller. The decoction liquid pump housing is fixed to the bottom of the cylinder bottom plate. One end of the decoction liquid pump housing is provided with a housing first water port 30 connected to the inner cylinder water outlet, and the other end of the decoction liquid pump housing is provided with a housing second water port 31 connected to the inner cavity of the outer cylinder. A housing third water port 32 and a housing fourth water port 33 are provided on the outer periphery of the decoction liquid pump housing. The housing third water port 32 is connected to the inner cavity of the outer cylinder through a first water pipe 34. The housing second water port 31 is connected to the first water pipe through a second water pipe 35. The housing fourth water port 33 is connected to the inner cavity of the inner cylinder through a third water pipe 36. Corresponding water pipe valves are provided on the first water pipe 34, the second water pipe 35, and the third water pipe 36.

[0032] A vane shaft gear 21 is provided on the vane shaft of the decoction liquid pump impeller, and a stirring shaft gear 15 is provided on the stirring shaft of the stirring device. The vane shaft gear 21 and the stirring shaft gear 15 are located in the equipment room. The vane shaft gear 21 and the stirring shaft gear 15 are arranged at different heights. The extraction tank further includes a driving motor 19 that can move up and down under the drive of a lifting mechanism. A motor shaft gear 16 that selectively meshes with the vane shaft gear and the stirring shaft gear individually by moving up and down is connected to the motor shaft of the driving motor.

[0033] When performing a decoction, open the water injection pipeline valve, the water in the water storage chamber flows into the inner cylinder by gravity, and the water injection port at the upper end of the water storage chamber can inject water at the same time. When the water in the inner cylinder reaches the design value, close the water injection pipeline valve, and the heating coil works to heat the medicine liquid in the inner cylinder and make it boil. While the heating coil heats the inner cylinder, the heat will also radiate outward, thereby heating the water in the water storage chamber. The water temperature in the water storage chamber is 80-90°C. During this process, the driving motor is in a high position, the motor shaft gear is meshed with the stirring shaft gear, and the stirring shaft 12 rotates with the stirring blade 9, which is helpful for the extraction of the effective ingredients of the medicine; when a decoction is finished, adjust the height of the driving motor, move the driving motor to a low position, the motor shaft gear is meshed with the blade shaft gear, open the inner cylinder water outlet and the first water pipe, and the driving motor drives the decoction pump blades to rotate, and the decoction pump can pump the decoction in the inner cylinder into the outer cylinder; then, the inner cylinder is pumped into the inner cylinder through the water storage chamber. The cavity is supplied with water again, the driving motor is moved to a high position, the driving motor drives the stirring shaft to rotate, the heating coil heats the inner cylinder, so that the decoction in the inner cylinder boils, and at the same time ensures that the water temperature in the water storage cavity is 80-90°C, and the decoction temperature in the outer cylinder is 70-90°C. When the second decoction is finished, the position of the driving motor is moved again, the second water pipe and the third water pipe are opened, the decoction pump works, and the second water inlet of the decoction liquid housing in the outer cylinder enters the decoction pump, and the decoction pump can pump the water in the outer cylinder The decoction is pumped into the inner cylinder, and then the height of the driving motor is moved again. The stirring device stirs the decoction in the inner cylinder to achieve rapid and uniform mixing of the first decoction and the second decoction. The temperature difference between the first decoction and the second decoction is very small, which basically does not affect the mixing between the two. After the decoction is evenly mixed, the water outlet of the inner cylinder, the first water pipe and the medicine liquid outlet are opened, the position of the driving motor is moved, and the decoction pump works to pump the decoction in the inner cylinder into the outer cylinder and discharge it through the medicine liquid outlet.

[0034] Example 2 of a method for preparing a stroke rejuvenation tablet Figure 6 As shown: Embodiment 2 is different from Embodiment 1 in that two independently arranged first motors 37 and second motors 38 are provided between the equipments; the first motor 37 is transmission-connected to the blade shaft 20 of the decoction pump, and the second motor 38 is transmission-connected to the stirring shaft 12.

[0035] In the above description of this specification, unless otherwise clearly defined and limited, terms such as "fix", "install", "connect" or "couple" should be understood in a broad sense. For example, for the term "connect", it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, or it can be the communication inside two components or the interaction relationship between two components. Therefore, unless otherwise clearly defined in this specification, those skilled in the art can understand the specific meanings of the above terms in the present invention according to specific circumstances.

[0036] According to the above description of this specification, those skilled in the art can also understand the terms used as follows. For example, terms indicating orientation or positional relationships such as "upper", "lower", "front", "rear", "left", "right", "length", "width", "thickness", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", "center", "longitudinal", "transverse", "clockwise" or "counterclockwise" are based on the orientation or positional relationships shown in the drawings of this specification. They are only for the purpose of facilitating the description of the solution of the present invention and simplifying the description, rather than explicitly or implicitly indicating that the devices or components involved must have the specific orientation, be constructed and operated in the specific orientation. Therefore, the above terms of orientation or positional relationships cannot be understood or interpreted as limitations on the solution of the present invention.

[0037] In addition, terms such as "first" or "second" used in this specification to refer to numbers or ordinals are only for descriptive purposes and cannot be understood as explicitly or implicitly indicating relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this specification, the meaning of "a plurality" is at least two, such as two, three or more, etc., unless otherwise clearly and specifically defined.

[0038] Finally, 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 them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for preparing a stroke rejuvenation tablet, characterized in that: The preparation method includes extracting the plant components in the Chinese medicine Huichun tablets. The specific extraction process is as follows: The plant ingredients include safflower, peach kernel, Millettia reticulata, honeysuckle vine, trachelospermum officinale, schizonepeta tenuifolia, cyathula capitata, stir-fried clematis seeds, clematis root, papaya and salvia miltiorrhiza. The plant ingredients are put into the inner cylinder of the extraction tank, 4 to 6 times the weight of water of the plant ingredients is added to the inner cylinder for the first time, and the decoction is boiled for 2 hours, and the decoction is pumped into the outer cylinder, 3 to 5 times the weight of water of the plant ingredients is added to the inner cylinder for the second time, and the extraction is performed for 1.5 hours, and then the decoction in the outer cylinder is pumped into the inner cylinder to achieve decoction mixing; The extraction tank includes an inner cylinder and an outer cylinder located outside the inner cylinder, an annular transition chamber is provided between the inner cylinder and the outer cylinder, the annular transition chamber is divided into an installation chamber and a water storage chamber arranged inside and outside by an annular partition, a heating coil for heating the inner cylinder is arranged in the installation chamber, the bottom of the water storage chamber is connected to the inner cylinder through a water injection pipe, a water injection pipe valve is arranged on the water injection pipe, a stirring device is arranged in the inner cylinder, and the extraction tank also includes a decoction pump for pumping the decoction in the inner cylinder into the outer cylinder and for pumping the decoction in the outer cylinder into the inner cylinder.

2. The preparation method according to claim 1, characterized in that: The distance between the heating coil and the outer periphery of the inner cylinder is smaller than the distance between the heating coil and the inner periphery of the annular partition, and there is an installation space between the heating coil and the inner periphery of the annular partition.

3. The preparation method according to claim 2, characterized in that: A cylinder cover is arranged on the top of the inner cylinder and the outer cylinder, and a plurality of arc holes arranged at intervals along the circumferential direction are arranged on the cylinder cover, and the lower ends of the arc holes are connected with the installation space. The extraction tank also includes an arc insulation plate arranged corresponding to each arc hole, and the arc insulation plate is inserted into the corresponding installation space through the arc hole. Each arc insulation plate is arranged at intervals along the circumference of the inner cylinder, and the upper end of each arc insulation plate is fixed on the same transmission ring, and the arc insulation plate can rotate along the circumference of the arc hole in the corresponding arc hole.

4. The preparation method according to any one of claims 1 to 3, characterized in that: The bottom of the inner cylinder and the outer cylinder has a cylinder bottom plate, the extraction tank also includes a base plate located on the lower side of the cylinder bottom plate, an equipment room is formed between the base plate and the cylinder bottom plate, an inner cylinder water outlet connected to the inner cavity of the inner cylinder is arranged on the cylinder bottom plate, a filter screen and an outlet valve are arranged at the inner cylinder water outlet, the decoction pump is arranged in the equipment room, the decoction pump includes a decoction pump shell and decoction pump blades, one end of the decoction pump shell is provided with a first shell water inlet connected to the inner cylinder water outlet, the other end of the decoction pump shell is provided with a second shell water inlet connected to the inner cavity of the outer cylinder, the outer periphery of the decoction pump shell is provided with a third shell water inlet and a fourth shell water inlet, the third shell water inlet is connected to the inner cavity of the outer cylinder through a water pipe, and the fourth shell water inlet is connected to the inner cavity of the inner cylinder through a water pipe.

5. The preparation method according to claim 4, characterized in that: A blade shaft gear is arranged on the blade shaft of the decoction pump blade, and a stirring shaft gear is arranged on the stirring device's stirring shaft. The blade shaft gear and the stirring shaft gear are located in the equipment room, and the blade shaft gear and the stirring shaft gear are arranged in a staggered manner. The extraction tank also includes a driving motor that can be lifted up and down by the lifting mechanism. The motor shaft of the driving motor is connected to a motor shaft gear that selects to engage with the blade shaft gear and the stirring shaft gear individually by moving up and down.

6. An extraction tank used in the preparation method of stroke rejuvenation tablets, characterized in that: The invention comprises an inner cylinder and an outer cylinder located outside the inner cylinder, an annular transition cavity is provided between the inner cylinder and the outer cylinder, the annular transition cavity is divided into an installation cavity and a water storage cavity arranged inside and outside by an annular partition, a heating coil for heating the inner cylinder is arranged in the installation cavity, the bottom of the water storage cavity is connected with the inner cylinder through a water injection pipe, a water injection pipe valve is arranged on the water injection pipe, a stirring device is arranged in the inner cylinder, and the extraction tank also comprises a decoction pump for pumping the decoction in the inner cylinder into the outer cylinder and a decoction pump for pumping the decoction in the outer cylinder into the inner cylinder.

7. The extraction tank according to claim 6, characterized in that: The distance between the heating coil and the outer periphery of the inner cylinder is smaller than the distance between the heating coil and the inner periphery of the annular partition, and there is an installation space between the heating coil and the inner periphery of the annular partition.

8. The extraction tank according to claim 7, characterized in that: A cylinder cover is arranged on the top of the inner cylinder and the outer cylinder, and a plurality of arc holes arranged at intervals along the circumferential direction are arranged on the cylinder cover, and the lower ends of the arc holes are connected with the installation space. The extraction tank also includes an arc insulation plate arranged corresponding to each arc hole, and the arc insulation plate is inserted into the corresponding installation space through the arc hole. Each arc insulation plate is arranged at intervals along the circumference of the inner cylinder, and the upper end of each arc insulation plate is fixed on the same transmission ring, and the arc insulation plate can rotate along the circumference of the arc hole in the corresponding arc hole.

9. The extraction tank according to any one of claims 6 to 8, characterized in that: The bottom of the inner cylinder and the outer cylinder has a cylinder bottom plate, the extraction tank also includes a base plate located on the lower side of the cylinder bottom plate, an equipment room is formed between the base plate and the cylinder bottom plate, an inner cylinder water outlet connected to the inner cavity of the inner cylinder is arranged on the cylinder bottom plate, a filter screen and an outlet valve are arranged at the inner cylinder water outlet, the decoction pump is arranged in the equipment room, the decoction pump includes a decoction pump shell and decoction pump blades, one end of the decoction pump shell is provided with a first shell water inlet connected to the inner cylinder water outlet, the other end of the decoction pump shell is provided with a second shell water inlet connected to the inner cavity of the outer cylinder, the outer periphery of the decoction pump shell is provided with a third shell water inlet and a fourth shell water inlet, the third shell water inlet is connected to the inner cavity of the outer cylinder through a water pipe, and the fourth shell water inlet is connected to the inner cavity of the inner cylinder through a water pipe.

10. The extraction tank according to claim 9, characterized in that: A blade shaft gear is arranged on the blade shaft of the decoction pump blade, and a stirring shaft gear is arranged on the stirring device's stirring shaft. The blade shaft gear and the stirring shaft gear are located in the equipment room, and the blade shaft gear and the stirring shaft gear are arranged in a staggered manner. The extraction tank also includes a driving motor that can be lifted up and down by the lifting mechanism. The motor shaft of the driving motor is connected to a motor shaft gear that selects to engage with the blade shaft gear and the stirring shaft gear individually by moving up and down.

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